US785175A - Apparatus for cutting or sawing slate, stone, metal, wood, or other materials. - Google Patents

Apparatus for cutting or sawing slate, stone, metal, wood, or other materials. Download PDF

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Publication number
US785175A
US785175A US13327202A US1902133272A US785175A US 785175 A US785175 A US 785175A US 13327202 A US13327202 A US 13327202A US 1902133272 A US1902133272 A US 1902133272A US 785175 A US785175 A US 785175A
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Prior art keywords
frame
saw
cutting
sawing
stone
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US13327202A
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Charles Landale
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/06Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/869Means to drive or to guide tool
    • Y10T83/8748Tool displaceable to inactive position [e.g., for work loading]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/869Means to drive or to guide tool
    • Y10T83/8821With simple rectilinear reciprocating motion only
    • Y10T83/8828Plural tools with same drive means
    • Y10T83/8831Plural distinct cutting edges on same support

Definitions

  • a furtherobject of the invention is" to [provide a car-body of improved construction in which strength, rigidity, and durability will be combined with simplicity and economy of building.
  • Efficient means are also prov ded at the end portions of the underframing, brac ing-the body sides contiguous to the end sills and relative to the centersill, so as to fortify the end portions of the car structure against transverse 0r torsiona1-strains
  • Figure 1- is anisometrio-i part of this tures will b viewshowing u ti'arisverse section a car embodying theinvention, the ear-bodybeing-of l gondol'atype.
  • Fig. 2 is a similar View illustrating my improved center sill and novel '60 particularly shown.
  • @Figl 5; is a'detail ve'rti-' cal. cross-sectional view taken in a plane intermediate of oneoi' theholsters and the adjacent ends'ill.
  • the enter sill of the car-underframe prises a vertically disposed member. 1 having horizontally-projecting: flanges 2 and a ":ire n forcinghorizontal member 3, secured below the vertical member l.
  • the central member a i of the center sill in the form of the invention shown'in the drawings consists of an l l beam and the horizontal ireinforcing member 1s shown as consisting of a'chanuel-iron; with its flanges itur'ned downward j orjin' depending t relationto the body of the channel;
  • This construction constitutes a, very simple and effe'ctive'formof center sill..;and ismypre-f ferred, construction
  • the invention consists, broadly, of a center Slll eomprismga vert1j-- .cally-disposed flanged member and a rein-J forcing horizontally-disr'aosed member below .thevertieal member and-of kyn
  • center sill permits of the employrnent'in a car-underframe, and in a hori z'ontal plane coincident with the-center sill,
  • the upper meinber of the centersill is of sectional character, the contiguous ends ofisections, of which abut 1 against and are secured to'theadjacent bolster at opposite sides or the latter by angle-plates '5, the lowerhorizontal member of said sill extending continuously immediately beneath" v i I too the v bolsters.
  • a center sill comprising a vertically-disposed member including a plurality of longitudinal sections, and ahorizontally-disposed longitudinal member secured and extending below said verticallydisposed member, said horizontally-disposd member having vertical flanges.
  • a center sill comprising'a vertically-disposed I-beam, and a channel below said beam, said channel having lts flanges turned downward.
  • cally-disposed member and a horizontally-disposed member havingvertical flanges, of a continuous bolster, and plates secured to opposite sides of the center sill, and extending under the bolster.
  • a center sill comprising a vertically-disposed member in a horizontal plane common with that of "said central bolster” portions, said center sill extending at each end beyond .the positions of the continuous bolsters, of diagonal braces at the end por- -tions of the frame, connected at their inner ends with the center sill and suitable side sills to which the outer ends of the braces are connected.
  • This invention relates to apparatus particularly applicable for employment in cutting or sawing stone, but which may be used in sawing other materials-such as slate, wood, or metal-the objects being to render the motion of the saw-frame more effective, to lessen the wear of the saws by effecting their release from their work during the return stroke, and to provide for cutting in an upward direction.
  • the saws or cutters are usually mounted in a frame which is arranged between the uprights or main framingof the machine and to which a reciprocative movement of a pendulous nature is imparted, the saw frame being,moreover, fed upwardly as the work of cutting proceeds.
  • the saw-frame is suspended by means of rods which depend from transverse shafts, these being mounted in blocks which work in vertical guideways and receive motion from screw-spindles driven from overhead gearing.
  • rods which depend from transverse shafts, these being mounted in blocks which work in vertical guideways and receive motion from screw-spindles driven from overhead gearing.
  • the mode of suspension of the saw-frame admits of cutting taking place only when the crank is above and below the axis of the shaft, the saws or cutters being lifted away from their work at each forward and backward movement of the frame.
  • This mode of working involves considerable wear and tear of the cutters.
  • According to positive horizontal movement of the saw-frame is obtained whereby the saws operate during the whole of their stroke; but it is open to the objection that insufficient provision is made for the ingress of sand and water below the cutters.
  • Figure 1 is a side elevation of a sawing-machine adapted for effecting the objects of my invention.
  • Fig. 2 is an end elevation, and
  • Fig. 3 a plan corresponding with Fig. 1.
  • Fig. A is a side elevation with the columns removed to show the link mechanism, and
  • Fig. 5 a longitudinal section through the center of the machine.
  • Figs. 6, 7, 8, and 9 are enlarged views illustrating part of the mechanism for lifting and lowering the saw-frame and the saws to or from the cut with a view to obviating unnecessary wear of the saws.
  • Fig. 10 is a view of a modified arrangement of the cross-head and links. Figs.
  • FIGS. 13 and 14 are views, on a larger scale, of a portion of the table, Fig. 13 being a section on the line m m in Fig. 14.
  • Fig. 15 is a detail View of a modification in the table raising and lowering apparatus.
  • Figs. 16, 17, 18, 19,20, and 21 are detail views of the saddles or blocks and their connections.
  • Fig. 22 is a view of a modified arrangement of the said saddles or blocks.'- Figs. 23 and 24 are detail views of the feeding mechanism.
  • the saw-frame A is mounted on supports a a and suspended from cross heads B, connected by links B B to saddles B B carried by the frame C of the ma- 1 chine, the arrangement being such that while one portion of the cutter A is cutting the other portion is moved out of the cut, as hereinafter more fullydescribed.
  • the bite of the cutter is increased, while the ingress of sand and water supplied in the usual manner to the cut is facilitated.
  • the machine is rendered available for the employment of toothed saws or wcutters.
  • Thesaws A are secured in the end portions of a of the frame A by the'usual means.
  • the end portions (6 a are mounted in end supports a a, connected by longitudinal members a a and tension-rods a a
  • This construction insures the sides of the frame being in such a position as not to hamper the attendant in the exercise of his duties, as is frequently the case with the frames as ordinarily arranged.
  • the table T whereon the material to be cut is placed, is of such a construction that the saw may be entirely below the upper surface of the table when not cutting, the table being formed with longitudinal slots t, which enlarge into recesses 25 in the cross-girders of the table, as shown in Figs. 13 and 14:.
  • a cross-head B is mounted on an eccentric stud or pin 1), carried in lugs 7), formed or provided on the saw-frame A and connected by rods or links B B with saddles or blocks B B, arranged to slide vertically in the uprights C, as shown in Figs. 19, 20, and 21.
  • the connecting-rods B B are attached at the respective ends of the cross-heads.
  • the rods B, which extend above the frame, may be attached, as shown, to the inner ends thereof, while the rods B which extend below the said frame, may be attached to the outer ends of the cross-heads, as shown.
  • the parts may be so arranged that when the apparatus is out of use the cross-head lies parallel, while the links or rods are at right angles thereto, as shown in Figs. 8 and 10.
  • the connecting rod or rods if more than one be employed, may be attached to the frame, as shown, or to any other convenient part thereof.
  • the points of attachment from which the links supporting the cross-heads are suspended are preferably of an adjustable character, such as pin 72 (shown in detail in Figs.
  • the linkwork may, as stated above, be so proportioned as to yield a parallel, and so maintain a straight-line, motion of the saws.
  • By turning the linkwork about its center the points of suspension may still be guided in a straight line, but one which will be at an angle with the horizontal, and whereby two or more blows will be imparted to the material being operated on instead of the one blow obtained by suspending the frame by means of a single rod.
  • the linkwork has been devised with the object of affording a curved path to the pivot b, so that the movements of the saws are such that at different points in their movement their position is tangential to a circle of large radius.
  • the link B is free to move about its pivot or connection [2 the link B being free to move about its pivot F.
  • the connections Z7 72 of the links B B with the cross-head B are also free joints.
  • the pivot b in the cross-head B forms the point of support of the saw-frame A, and although this point of support in the arrangement illustrated is situate between the connections I) 6 this position is not essential.
  • the pivots or connections 6 b are carried in the saddles or blocks B B, the latter adapted to be moved vertically by means of screwed spindles F, as hereinafter described, affording means whereby the saws may be fed up to the work or otherwise.
  • B B are guides or saddles which serve to guide the frame A, and thus maintain a parallel motion of the saws.
  • b I are screwed rods which connect the upper and lower saddles and the frameguides and which admit of their adjustment relatively to each other,- as will readily be seen on referring to Fig. 1.
  • the lateral adjustment of the pivots 6 I2 may be efiectcd by moving the carriers 6 5 along their respective blocks B B".
  • the mechanism is preferably arranged in the following manner:
  • the vibratory lever D is pivoted at (Z in the saw frame A, its vibratory movement being limited by the bolt d, hinged to the lever at (V.
  • the head of the bolt d is formed in such a manner that the abutments a a in the said frame serve, respectively, to control its motion in the inward and outward position.
  • the abutments may be provided with resilient buffers, such as the spring (0*, (shown in Fig.
  • a catch (Z is provided. This catch is operated by means of a bell-crank lever d, whereof the forked arm d embraces the outer end of the catch d
  • a rod d is connected at its one end with the lever dfl while its opposite end is supported in a bracket 0Z and carries a roller (Z so arranged as to engage an incline or contact surface 0Z upon the sawframe nearing the end of its return stroke.
  • the rod (Z is preferably made adjustable by means of a coupling (Z By these means the bell-crank lever (Z effects the raising of the catch (Z thus releasing the bolt d and rendering the lever D free to vibrate and to effect theraising or lowering'of the saw-frame.
  • the lever D is connected with the shaft E by means of the rod e and lever e, the latter being keyed to the shaft E. To this latter is also keyed the levers 0 0 which are connected with the link-motion by means of the rods 6 and levers e e".
  • the levers e e carry the sheaves a, which operate the pins 6 b, whereby-the saw-frame is held suspended, these pins being arranged eccentrically in the sheaves, so that upon the levers a being vibrated a rectilineal movement, in conjunction with a pendulous motion, is imparted to the saw-frame.
  • the shaft E may be provided with means for assisting in the raising of the frame, such as the weight 6* at the end -of the leverf secured to the said shaft E,
  • the saws are fed up to the work by means of the screw-spindles F F, working in lugs in the saddles B B and taking a bearing at its lower end on the frame 0, as shown in Fig. 20, or the spindles may work in both the saddles B Bf and in the guide B as shown in Fig. 22.
  • To the spindles F F are keyed bevel-wheels f, which mesh with bevel-wheels f, keyed to the shafts f f the shaft f being drivenin the manner hereinafter described and the shaft f driven from the shaft f by means of bevel-gearingf f at each end of a shaft f as is clearly shown in Fig. 3.
  • the shaft is rotated by the pulley G.
  • a crank-disk g on the shaft G conveys motion, by means of the rod to a radial arm furnished with a weight or spring-controlled pawl g which engages with the teeth of a spur-wheel G keyed on the shaft f.
  • This shaft f actuates through the bevelgearing f f f X f XX and the respective shafts f f f the screw-spindles F F, and thereby raises or lowers the saddles B B B B
  • it is desired to rapidly raise or lower the sawframe--as for instance, when the saws are not cutting motion is transmitted from the shaft G to the shaft f by means of a band 9 and pulleys g g, the pulley 9 being keyed to a shaft G Upon the latter is keyed a spur-pinion in mesh with another spurpinion g", the latter meshing with the spurpinion g".
  • the spur-pinions g g" are mounted in a lever G, fulcrumed on the frame C of the machine.
  • the shaft f may be rapidly rotated, with the result that the saw-frame will be rapidly raised or lowered, according to which of the spur-pinions g g be put into mesh with the spurwheel(1r
  • Holding means such as the springc'atch 9*, as shown in Figs. 23 and 245, may, however, be provided, so that in the event of any obstruction being met with the pinion g or will be immediately thrown out of gear.
  • the rods may be dispensed with and the screw-spindles be arranged to work in nuts formed or provided on the saddles or guides.
  • the releasing-gear for the bolt and the lever D may be modified in various ways without departing from the spirit of the invention.
  • a saw-frame provided with one or more cutters, cross-heads suspended between saddles by means of links, pivots eccentrically mounted in said cross-heads for carrying the saw ⁇ - frame, a lever pivotally mounted on the saw-frame and connected with a thrust-rod, rods and levers connecting said pivotally-mounted lever with the eccentrically-mounted pivots, and means for releasing the pivotally-mounted lever, at the end of the cutting stroke, whereby said lever is vibrated by the thrust-rod and the eccentrically-mounted pivots rotated to remove the saw or saws from the cut during the return stroke, substantially as herein described.
  • a saw-frame provided with one or more saws or cutters, adapted to cut in an upward direction, cross-heads and links supporting the frame and means for removing the cutters from the cut during a portion of their stroke, of a table for carrying the material to be operated on formed with longitudinal slots.
  • the herein-described means for preventing the saw-frame from being raised or lowered before it reaches the end of its stroke comprising a lever pivotally mounted on the saw-frame and connected with a thrustrod, a bolt connected with said lever, a catch for engaging the bolt, inclined planes on the main frame, and means for operating said catch from the inclined planes at the end of each stroke.

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  • Mining & Mineral Resources (AREA)
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Description

' To all whom, itmayooncern:
UNITED STATES 'Iatented. March 21, 1505.
JOHN w. KING, OF Ninv.iroa1 ,"u.;Y.
RAILW -C R; v
SPECIFICATION forming part of'Letters; ratent'iv l 785,174, dated Marshal, 1905. t
Application naaa nl 30; 19032 'Sari a.1No. l54,941.
Beit known thatLJoH'N W. Kim; was
of the United States, and a resident of New lork c ty, in the county of New York -and.
State of- New Yorkjhave inventedcertain new and useful Improvements in Railway-Car's ofwhich the-followin'gis" a'specification'. v 7 My invention. relates to railwayears and its primary'object is to provide --'anunderframe of improved construction vespecially apted for frei ght-carsof the types known as gondolas. flat-cars, *f hox -cars, hop per-cars}?ftank carsfii&c. i
A furtherobject of the invention is" to [provide a car-body of improved construction in which strength, rigidity, and durability will be combined with simplicity and economy of building. a I p v p 'lhedistinguishi ng characteristic features of my improved "underframe is-its center sill, wh ch comprises a vertlcallymlisposed main -or bodymember having horizontal projec tions in combinationwith a horizontally-dis posed and longitudinally-extended qreinforc-f ing membersecured to the, projections of the vertical member,
I A prominent feature connected'with theinvention resides in thefact that the horizon tally-disposed reinforcingme'mberof the c'enter sillis of extended character relative to the underframingof the cal-{while the vertical member of said sill comprises sections which abut and are secured at their contiguous ends to the b0lste'rs,.thus permitting the former to be of continuous character. for attaining all the advantages consequent upon such constructiom, Efficient means are also prov ded at the end portions of the underframing, brac ing-the body sides contiguous to the end sills and relative to the centersill, so as to fortify the end portions of the car structure against transverse 0r torsiona1-strains The construction of -my improvedcarwill 'jbe fullyi'described hereinafter in connection. with theaccompanyjingd rawings; which form; 'fication, and its novel fea in; the appendedclaims; Figure 1- is anisometrio-i part of this tures will b viewshowing u ti'arisverse section a car embodying theinvention, the ear-bodybeing-of l gondol'atype.
Fig. 2 is a similar View illustrating my improved center sill and novel '60 particularly shown. @Figl 5; is a'detail ve'rti-' cal. cross-sectional view taken in a plane intermediate of oneoi' theholsters and the adjacent ends'ill.
The enter sill of the car-underframe prises a vertically disposed member. 1 having horizontally-projecting: flanges 2 and a ":ire n forcinghorizontal member 3, secured below the vertical member l. The central member a i of the center sill in the form of the invention shown'in the drawingsconsists of an l l beam and the horizontal ireinforcing member 1s shown as consisting of a'chanuel-iron; with its flanges itur'ned downward j orjin' depending t relationto the body of the channel; This construction constitutes a, very simple and effe'ctive'formof center sill..;and ismypre-f ferred, construction, The invention consists, broadly, of a center Slll eomprismga vert1j-- .cally-disposed flanged member and a rein-J forcing horizontally-disr'aosed member below .thevertieal member and-of kyn gitudinally-v extended character.
An important advantage of my improved form of center sill is that it permits of the employrnent'in a car-underframe, and in a hori z'ontal plane coincident with the-center sill,
continuous bolsters 5 in connectiou with a continuousdraft membe'n thus obviat ng the expensive and cumbersome lateral stays or trusses ordinarily required forsupporting and "bracing sectional bolsters. In pursuance of this feature of the invention the upper meinber of the centersill is of sectional character, the contiguous ends ofisections, of which abut 1 against and are secured to'theadjacent bolster at opposite sides or the latter by angle-plates '5, the lowerhorizontal member of said sill extending continuously immediately beneath" v i I too the v bolsters.
sccureu oeiow the vertically-disposed member and having vertical side flanges.
9. In acar-underframmg, a center sill comprising a vertically-disposed member including a plurality of longitudinal sections, and ahorizontally-disposed longitudinal member secured and extending below said verticallydisposed member, said horizontally-disposd member having vertical flanges.
10. In a car-underframing, a center sill comprising'a vertically-disposed I-beam, and a channel below said beam, said channel having lts flanges turned downward.
11. The combination 1n an underframe for cars, with a center sill'comprising a vertically-disposed member including a plurality of longitudinal sections, and a horizontallydisposed member secured andextending continuously relative to said vertically-disposed member, and a continuous bolster against which abuts the contiguous ends of the sections ofthe vertically-disposed member.
12. The combination in an underframe for cars, with a center sill com prising a verticallydisposed member including a plurality of lon' git'udinal sections having lateral flanges, and a horizontally-disposed member secured and extending continuously relative to said vertically-disposed member, and a continuousbol: 'ster against which abut the contiguous ends of the sections of the vertically-disposedmember.
13. The combination in an underframe for cars, with a center Slll consisting of a verti cally-disposed member and a horizontally-dis posed-member having vertical flanges, of a continuous bolster, and posite sides of the center sill.
1i. The combination in an underframe for i cars, with a center sill consisting of a verti- -wh1ch intersect the horizontal plane'of .the'
cally-disposed member and a horizontally-disposed member havingvertical flanges, of a continuous bolster, and plates secured to opposite sides of the center sill, and extending under the bolster. I
'15. In a car the combination .with a body comprising a floor and sides, the latter depending belowthe floor plane and forming side sills of continuous bolster provision beneath andconnected to the side sills, and a center sill embodying-a vertical member-disposed in the same horizontal plane as that cupied by the side sills and bolster provision and secured tothe latter. 16. In a car, the combination with the centersill and bolsters, of a body, the sides of center-"sill and bolsters, and form side sills,
plates secured to-opcentral portions, and a center sill comprising a vertically-disposed member in a horizontal plane common with that of "said central bolster" portions, said center sill extending at each end beyond .the positions of the continuous bolsters, of diagonal braces at the end por- -tions of the frame, connected at their inner ends with the center sill and suitable side sills to which the outer ends of the braces are connected.
18-. The combination with an underframe for cars having a center sill comprising a vertically-disposed' member, and bolsters, of body sides depending within the horizontal plane of the center sill, and diagonal braces at the end portions of the frame, connected independently of the floor by being attached at their innerends directly to the vertical member of the center sill and at their outer ends to the depending parts of the body sides.
19. The combination with an underframe for cars having continuous bolsters and a center sill comprising a vertically dispos'ed m'e'm ber extending at each end to points beyond the position occupied by the said bolsters, of-
body sides depending below the floor plane,
and diagonal braces at the end portions of the frame and connected independently of the 11001 by being attached at their ends with the center sill and at their outer pending body-sides.
- 20.--The combination in an underframe for cars, with a center sill consisting of a vertically-disposed member having horizontallyprojecting'flanges, and a horizontally-disposed member, of a continuous bolster, and parallel ends to. the deside plates secured to opposite sides of the cen-.
ter sill and extending under the bolster.
21. The combination in an undertrame for cars, with a center slllconslsting'ot a vert1- IIO cal'ly-disposed memberhaving horizontallyprojecting flanges, and a horizontally-disposed member having depending flanges, of a continuous bolster, and parallel side plates secured to opposite sides of the center sill and extending under the bolster.
22. In an underframe for cars, the combination with a continuous bolster, of a center sill consisting of a vertically-disposed member having horizontally-projecting flanges and a horizontally-disposed member extending under and beyond the bolster, and side plates or bars on' opposite sides of the center sill connecting the latter to theend sillof the car. 23. The combination in an under-frame for cars, with continuous bolsters, the latter presenting uninterrupted vertical faces at their No. 785,175. PATBNTED MAR. 21, 1905.- C. LANDALE.
APPARATUS FOR- UUTTING OR SAWING SLATE, STONE, METAL, WOOD,
OR OTHER MATERIALS.
APPLICATION Hum NOV. 29, 1902.
B SHEETS-$15331 3.
WITNESSES.
llVVE/VTOR."
No. 735,175. PATENTED MAR. 21; 1905.
O. LANDALB. APPARATUS FOR CUTTING ORSAWINGi-SLATE, STONE, METAL, WOOD,
' OR OTHER MATERIALS. I
APPLICATION FILED NOV. 29, 1902.
a SHEETS-SHEET 4.
awn/5555's." N 5 M/MENTOR:
.No. 785,175. PATENTED MAR. 21, 1905.
- o. LANDALE. 4
APPARATUS FOR CUTTING 0R SAWING SLATE, STONE, METAL, WOOD,
OR OTHER MATERIALS.
APPLICATION 21mm H0129, 19oz.
. gamma-slum a.
No. 785,175. PATENTED MAR. 21, 1905.
C. LANDA LE. APPARATUS FOR CUTTING 0R SAWING SLATE, STONE, MBTAL,'WO0D,
OR OTHER MATERIALS.
6. 5 mm d H w M V m H we /:m m 7 W m A 4 I W mll/lnflll x v w... H Iii: n a .a n d d m H m P 0 H M A PATENTED MAR. 21, 1905.
No. 785,175. v Y'GLLANDALB. APPARATUS FOR CUTTING OR SAWING SLATE, STONE, METAL, WOOD, 1
OR OTHER MATERIALS.
8 SHEETS-SHEET 7.
APPLICATION FILED NOV. 29, 1902.
Iiyfi.
WITNESSES:
INVEN7 0R5 M @44 No. 785,175. Q PATENTED MAR. 21, 1905.
- -0. LARDAL APPARATUS FOR CUTTING 0 SAWING SLATE, STONE, METAL, WOOD,
OR OTHER MATERIALS.
APPLICATION TILED E v. 29 1902. A o SSHEETSSHEET z I I i I 5- I 11 E 2 Riv/1 the alternative arrangement a NTTED STATES Patented March 21, 1905.
PATENT FFIcE.
APPARATUS FOR CUTTING H SAWING SLATE,
STONE, METAL, WOOD, OR OTHER MATERIALS.
SPEOIFICATIONforming part of Letters Patent No. 785,175, dated March 21, 1905.
Application filed November 29,1902. Serial No. 138,272.
To It whom, it may concern.-
Be it known that 1, CHARLES LANDALE, a subject of the King of Great Britain and Ireland, residing at 23 1 Oxford road. Basford Park, Stoke-upon-Trent, in the county of Stafford, England, have invented a new and useful Improved Apparatus for Cutting or Sawing Slate, Stone, Metal, Wood, or other Materials, of which the following is a specification.
This invention relates to apparatus particularly applicable for employment in cutting or sawing stone, but which may be used in sawing other materials-such as slate, wood, or metal-the objects being to render the motion of the saw-frame more effective, to lessen the wear of the saws by effecting their release from their work during the return stroke, and to provide for cutting in an upward direction.
In apparatus of the kind above referred to the saws or cutters are usually mounted in a frame which is arranged between the uprights or main framingof the machine and to which a reciprocative movement of a pendulous nature is imparted, the saw frame being,moreover, fed upwardly as the work of cutting proceeds. According to one mode of working the saw-frame is suspended by means of rods which depend from transverse shafts, these being mounted in blocks which work in vertical guideways and receive motion from screw-spindles driven from overhead gearing. According to another arrangement it has been proposed to suspend the frame from the transverse shafts by means of a cross-head, whereof the extremities are connected with the sawframe by crossed levers or links. In the former of these arrangements the mode of suspension of the saw-frame admits of cutting taking place only when the crank is above and below the axis of the shaft, the saws or cutters being lifted away from their work at each forward and backward movement of the frame. This mode of working involves considerable wear and tear of the cutters. According to positive horizontal movement of the saw-frame is obtained whereby the saws operate during the whole of their stroke; but it is open to the objection that insufficient provision is made for the ingress of sand and water below the cutters.
In the accompanying drawings, Figure 1 is a side elevation of a sawing-machine adapted for effecting the objects of my invention. Fig. 2 is an end elevation, and Fig. 3 a plan corresponding with Fig. 1. Fig. A is a side elevation with the columns removed to show the link mechanism, and Fig. 5 a longitudinal section through the center of the machine. Figs. 6, 7, 8, and 9 are enlarged views illustrating part of the mechanism for lifting and lowering the saw-frame and the saws to or from the cut with a view to obviating unnecessary wear of the saws. Fig. 10 is a view of a modified arrangement of the cross-head and links. Figs. 11 and l2are enlarged detail views of the means used for preventing the raising or lowering of the saws before the end of the stroke is reached. Figs. 13 and 14 are views, on a larger scale, of a portion of the table, Fig. 13 being a section on the line m m in Fig. 14. Fig. 15 is a detail View of a modification in the table raising and lowering apparatus. Figs. 16, 17, 18, 19,20, and 21 are detail views of the saddles or blocks and their connections. Fig. 22 is a view of a modified arrangement of the said saddles or blocks.'- Figs. 23 and 24 are detail views of the feeding mechanism.
In cutting apparatus constructed according to my improved method the saw-frame A is mounted on supports a a and suspended from cross heads B, connected by links B B to saddles B B carried by the frame C of the ma- 1 chine, the arrangement being such that while one portion of the cutter A is cutting the other portion is moved out of the cut, as hereinafter more fullydescribed. By these means the bite of the cutter is increased, while the ingress of sand and water supplied in the usual manner to the cut is facilitated. At the same time the machine is rendered available for the employment of toothed saws or wcutters. Thesaws A are secured in the end portions of a of the frame A by the'usual means. The end portions (6 a are mounted in end supports a a, connected by longitudinal members a a and tension-rods a a This construction insures the sides of the frame being in such a position as not to hamper the attendant in the exercise of his duties, as is frequently the case with the frames as ordinarily arranged. The table T, whereon the material to be cut is placed, is of such a construction that the saw may be entirely below the upper surface of the table when not cutting, the table being formed with longitudinal slots t, which enlarge into recesses 25 in the cross-girders of the table, as shown in Figs. 13 and 14:.
According to one mode of carrying out my invention a cross-head B is mounted on an eccentric stud or pin 1), carried in lugs 7), formed or provided on the saw-frame A and connected by rods or links B B with saddles or blocks B B, arranged to slide vertically in the uprights C, as shown in Figs. 19, 20, and 21. The connecting-rods B B are attached at the respective ends of the cross-heads. The rods B, which extend above the frame, may be attached, as shown, to the inner ends thereof, while the rods B which extend below the said frame, may be attached to the outer ends of the cross-heads, as shown. The parts may be so arranged that when the apparatus is out of use the cross-head lies parallel, while the links or rods are at right angles thereto, as shown in Figs. 8 and 10. Upon a reciprocating motion being imparted to the frame A by means of the ordinary crank and the connecting-rod D the frame will move horizontally. The connecting rod or rods, if more than one be employed, may be attached to the frame, as shown, or to any other convenient part thereof. The points of attachment from which the links supporting the cross-heads are suspended are preferably of an adjustable character, such as pin 72 (shown in detail in Figs. 16, 17, and 18,) so that by turning the links B B about the pivoting-center of the crosshead B or by moving the outer centers 6 Z2 of the upper and lower links or rods B B at each end of the frame A in respectively opposite directions the movement of the frame may be varied. As the saw-frame Ais reciprocated the ends B B will be vibrated on their pivots Z2 6 and the saddles B angularly advanced, with the effect that the forward end of the leading saddles will be depressed, while the forward end of the rear saddles will be raised. A rocking movement in conjunction with a horizontal motion may thus be imparted to the saw-frame, one end of the latter being lowered, while the other end is raised. The ingress of water and sand to the cut is hereby permitted. Provision may be made for varying the extent of the rocking movement during the working of the apparatus by means of a spindle a", engaging in a screwed hole in the carriers 6 b the spindle being held from longitudinal movement by the shoulders a a bearing against the slotted flange a on the blocks B B and a squared end being provided on the spindle for the reception of a key whereby it may be rotated by hand.
-The linkwork may, as stated above, be so proportioned as to yield a parallel, and so maintain a straight-line, motion of the saws. By turning the linkwork about its center the points of suspension may still be guided in a straight line, but one which will be at an angle with the horizontal, and whereby two or more blows will be imparted to the material being operated on instead of the one blow obtained by suspending the frame by means of a single rod. In the example illustrated the linkwork has been devised with the object of affording a curved path to the pivot b, so that the movements of the saws are such that at different points in their movement their position is tangential to a circle of large radius. The link B is free to move about its pivot or connection [2 the link B being free to move about its pivot F. The connections Z7 72 of the links B B with the cross-head B are also free joints. The pivot b in the cross-head B forms the point of support of the saw-frame A, and although this point of support in the arrangement illustrated is situate between the connections I) 6 this position is not essential. The pivots or connections 6 b are carried in the saddles or blocks B B, the latter adapted to be moved vertically by means of screwed spindles F, as hereinafter described, affording means whereby the saws may be fed up to the work or otherwise. B B are guides or saddles which serve to guide the frame A, and thus maintain a parallel motion of the saws. b I) are screwed rods which connect the upper and lower saddles and the frameguides and which admit of their adjustment relatively to each other,- as will readily be seen on referring to Fig. 1. The lateral adjustment of the pivots 6 I2 may be efiectcd by moving the carriers 6 5 along their respective blocks B B". V
In adapting the apparatus for employment with toothed saws cutting in one direction such as in the case of sawing slate, soft stone, Sac-and with a view to avoiding unnecessary wear of the saw-teeth I utilize the toand-fro or thrusting-and-pulling movements of the connecting rod or rods D for lifting and lowering the saws to or from the out and so effecting the release of the saw during the return stroke. The .thrust rod or rods D of the saw-frame is or are connected with a lever D, pivoted in the end of the saw-frame A, the lever being capable of a limited vibratory movement. The mechanism may be arranged in a similar manner to that illustrated in Figs. 1, 2, and 3 and hereinafter described.
In sawing certain descriptions of materials I prefer to mount and to operate the sawframe substantially as illustrated, so that the cutting is effected upwardly through the material, the waste material freeing itself from the saw on its release from the cut during the return stroke. W hen so working, the mechanism is preferably arranged in the following manner: The vibratory lever D is pivoted at (Z in the saw frame A, its vibratory movement being limited by the bolt d, hinged to the lever at (V. The head of the bolt d is formed in such a manner that the abutments a a in the said frame serve, respectively, to control its motion in the inward and outward position. The abutments may be provided with resilient buffers, such as the spring (0*, (shown in Fig. 11,) so as to absorb any shock arising from the contact therewith of the head of the bolt. In order to prevent the raising or lowering of the saw-frame before it arrives at the end of the cutting or return stroke, a catch (Z is provided. This catch is operated by means of a bell-crank lever d, whereof the forked arm d embraces the outer end of the catch d A rod d is connected at its one end with the lever dfl while its opposite end is supported in a bracket 0Z and carries a roller (Z so arranged as to engage an incline or contact surface 0Z upon the sawframe nearing the end of its return stroke. The rod (Z is preferably made adjustable by means of a coupling (Z By these means the bell-crank lever (Z effects the raising of the catch (Z thus releasing the bolt d and rendering the lever D free to vibrate and to effect theraising or lowering'of the saw-frame. The lever D is connected with the shaft E by means of the rod e and lever e, the latter being keyed to the shaft E. To this latter is also keyed the levers 0 0 which are connected with the link-motion by means of the rods 6 and levers e e". The levers e e carry the sheaves a, which operate the pins 6 b, whereby-the saw-frame is held suspended, these pins being arranged eccentrically in the sheaves, so that upon the levers a being vibrated a rectilineal movement, in conjunction with a pendulous motion, is imparted to the saw-frame. Should the weight of the frame and its connections be such that the lifting thereof is rendered difficult, the shaft E may be provided with means for assisting in the raising of the frame, such as the weight 6* at the end -of the leverf secured to the said shaft E,
as shown in Fig. 15.
The saws are fed up to the work by means of the screw-spindles F F, working in lugs in the saddles B B and taking a bearing at its lower end on the frame 0, as shown in Fig. 20, or the spindles may work in both the saddles B Bf and in the guide B as shown in Fig. 22. To the spindles F F are keyed bevel-wheels f, which mesh with bevel-wheels f, keyed to the shafts f f the shaft f being drivenin the manner hereinafter described and the shaft f driven from the shaft f by means of bevel-gearingf f at each end of a shaft f as is clearly shown in Fig. 3. The shaft is rotated by the pulley G. A crank-disk g on the shaft G conveys motion, by means of the rod to a radial arm furnished with a weight or spring-controlled pawl g which engages with the teeth of a spur-wheel G keyed on the shaft f. This shaft f actuates through the bevelgearing f f f X f XX and the respective shafts f f f the screw-spindles F F, and thereby raises or lowers the saddles B B B When it is desired to rapidly raise or lower the sawframe--as, for instance, when the saws are not cutting motion is transmitted from the shaft G to the shaft f by means of a band 9 and pulleys g g, the pulley 9 being keyed to a shaft G Upon the latter is keyed a spur-pinion in mesh with another spurpinion g", the latter meshing with the spurpinion g". The spur-pinions g g" are mounted in a lever G, fulcrumed on the frame C of the machine. By disengaging the pawl g and moving the lever G so as tobring the one or the other of the spur-pinions g g into gear with the spur-wheel G the shaft f may be rapidly rotated, with the result that the saw-frame will be rapidly raised or lowered, according to which of the spur-pinions g g be put into mesh with the spurwheel(1r In this type of machine only a shallow cut is contemplated, and it is therefore desirable that the attendant hold the lever during the time the rapid raising or lowering gear is in operation. Holding means, such as the springc'atch 9*, as shown in Figs. 23 and 245, may, however, be provided, so that in the event of any obstruction being met with the pinion g or will be immediately thrown out of gear.
By cutting in an upward direction the waste material quickly disengages itself from the saws, the teeth of which have the usual set, and the detached portions will fall between the saw and the sides of the saw-draft, thus avoiding the tendency hitherto experienced of the saws riding or rolling on the waste material.
Although for the purpose of illustrating my invention I have selected a machine provided with toothed saws arranged to cut in an upward direction and adapted for sawing slate, it will be apparent that the machine may be employed with equally advantageous results in sawing hard stone wherein the cutters are formed as soft-iron plates, the cutting being effectedby washing sand or other abrading material into the cut. The improved machine insures a more effective. stroke of the saw, which throughout its stroke is acting upon some portion of the stone, a keener bite resulting. The alternate lifting of each end of the saws enables the sand and water to more readily enter the cut. Moreover, the steadiness with which the operation of the machine is effected renders the use of toothed saws practicable-an advantage readily appreciated in the art to which the invention pertains.
Instead of the saddles or guides being con structed as illustrated the rods may be dispensed with and the screw-spindles be arranged to work in nuts formed or provided on the saddles or guides. The releasing-gear for the bolt and the lever D may be modified in various ways without departing from the spirit of the invention.
What I claim as my invention, and desire to secure by Letters Patent, is- 1. In a machine for cutting or sawing slate, stone, metal, wood and other materials, the combination of a table for supporting the material, a saw-frame provided with one or more saws or cutters, crossheads suspended between saddles-by means of links for carrying said saw-frame, uprights carrying said saddles with screw-spindles working in said saddles and whereby the saws are fed to the work, and means for reciprocating the saw-frame, substantially as herein described.
2. In a machine for cutting or sawing slate, stone, metal, wood and other materials, the combination of a saw-frame provided with one or more cutters, cross-heads suspended between saddles by means of links, pivots eccentrically mounted in said cross-heads for carrying the saw\- frame, a lever pivotally mounted on the saw-frame and connected with a thrust-rod, rods and levers connecting said pivotally-mounted lever with the eccentrically-mounted pivots, and means for releasing the pivotally-mounted lever, at the end of the cutting stroke, whereby said lever is vibrated by the thrust-rod and the eccentrically-mounted pivots rotated to remove the saw or saws from the cut during the return stroke, substantially as herein described.
3. In a machine for cutting or sawing slate, stone, metal, wood and other materials, the combination with a saw-frame provided with one or more saws or cutters, adapted to cut in an upward direction, cross-heads and links supporting the frame and means for removing the cutters from the cut during a portion of their stroke, of a table for carrying the material to be operated on formed with longitudinal slots.
4:. In a machine for cutting or sawing slate, stone, metal, wood and other materials, the herein-described means for preventing the saw-frame from being raised or lowered before it reaches the end of its stroke, said means comprising a lever pivotally mounted on the saw-frame and connected with a thrustrod, a bolt connected with said lever, a catch for engaging the bolt, inclined planes on the main frame, and means for operating said catch from the inclined planes at the end of each stroke.
5. In a machine for cutting or sawing slate, stone, metal, wood and other materials the combination with vertically-movable saddles or blocks, of a saw-frame provided with one or more saws, cross-heads supporting the sawframe, two links pivoted to each cross-head, and holders adjustable in a substantially horizontal direction in the saddles for supporting the other ends of the said links.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses,
CHARLES LANDALE.
Witnesses:
HENRY ROBERT KING, HENRY MAURICE HAYNES.
US13327202A 1902-11-29 1902-11-29 Apparatus for cutting or sawing slate, stone, metal, wood, or other materials. Expired - Lifetime US785175A (en)

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