US1905031A - Shoe sewing machine - Google Patents

Shoe sewing machine Download PDF

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Publication number
US1905031A
US1905031A US338756A US33875629A US1905031A US 1905031 A US1905031 A US 1905031A US 338756 A US338756 A US 338756A US 33875629 A US33875629 A US 33875629A US 1905031 A US1905031 A US 1905031A
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US
United States
Prior art keywords
needle
shuttle
loop
thread
spreader
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US338756A
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English (en)
Inventor
Ashworth Fred
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United Shoe Machinery Corp
Original Assignee
United Shoe Machinery Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Shoe Machinery Corp filed Critical United Shoe Machinery Corp
Priority to US338756A priority Critical patent/US1905031A/en
Priority to DE1930590223D priority patent/DE590223C/de
Priority to DE1930531450D priority patent/DE531450C/de
Priority to FR689573D priority patent/FR689573A/fr
Priority to US448909A priority patent/US1905032A/en
Application granted granted Critical
Publication of US1905031A publication Critical patent/US1905031A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B57/00—Loop takers, e.g. loopers
    • D05B57/08—Loop takers, e.g. loopers for lock-stitch sewing machines
    • D05B57/10—Shuttles
    • D05B57/14—Shuttles with rotary hooks
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B15/00—Machines for sewing leather goods
    • D05B15/02—Shoe sewing machines
    • D05B15/04—Shoe sewing machines for lock-stitch work

Definitions

  • SHOE SEWING MACHINE Filed Feb. 9, 1929 s Shets-Sheet 5 Patented Apr. 25, 1933 UNITED STATES PATENT OFFICE ⁇ FRED ASHWORTH, OF HAM, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY GORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY SHOE SEWING MACHINE Application filed February 9, 1929. Serial No. 338,756.
  • the present invention relates to shoe sewing machines and is intended primarily as an improvement in lockstitch shoe sewing machines of the so-called McKay type which comprise a straight hook needle, a shuttle, a shoe supporting horn arranged to extend inside of the shoe, and a needle threading whirl located in the horn.
  • McKay type which comprise a straight hook needle, a shuttle, a shoe supporting horn arranged to extend inside of the shoe, and a needle threading whirl located in the horn.
  • Certain features of the invention, however, and particularly those relating to the shuttle are capable of embodimentand use in other types of machinesv 'lhe several features of the invention are herein illustrated as embodied in a lockstitch shoe sewing machine of the McKay type which is intended as an improvement on the machine disclosed in the pending applioation of Bernard T. Leveque for a lockstitch sewing machine, filed February 18, 1927, Serial No. 169,203.
  • a feature of the present invention still further facilitiates the severing of the needle thread at the conclusion of the sewing operation and to this end is embodied in a construction which, as the machine is brought to rest, engages one side of the needle loop and spreads the loop so that after the machine stops the legs of the needle loop are held widely separated and the work side of the loop can be readily severed without any special care on the part of the operator and without any danger of severing the other leg.
  • a short thread end can thus be left projecting from the shoe and a sufiicient length of supply thread projecting from the horn to start the next shoe.
  • the needle loop is taken directly from the needle by the shuttle.
  • a location of the shuttle is permitted so that the shuttle beak passes at one side of the needle and the entrance of the shuttle into the needle loop is greatly facilitated.
  • the needle and shuttle are actuated through connections from the main cam shaft which for controlling the operation of the loop.
  • means are provided in the illustrated machine for actuating the loop spreader from the connections through which the needle and shuttle are actuated so that the loop spreader comes to rest simultaneously with the needle and at the point in its movement when the needle loop is most widely distended.
  • the present invention also consists in the devices, combinations, and arrangement of parts hereinafter described and claimed, the advantages ofwhich will be obvious to those skilled in the art from the following description.
  • Fig. 1 is a view in side elevation of a lockstitch shoe sewing machine of the McKay type embodying the several features of the invention
  • Fig. 2 is a detail perspective view of a portion of the eel raceway for the shuttle
  • Fig. 3 is a similar View of another portion of the raceway for the shuttle
  • Fig. 4 is a detail view in side elevation illustrating the mechanism for actuating the loop spreader
  • Fig. 5 is an end view of the parts illustrated in Fig. 4, look.- ing from the right of Fig. 4
  • 'Fig. 6 is a view in front elevation of the parts illustrated in Fig.
  • Fig. 7 is a detail sectional plan view taken on the line 7 of Fig. 6;
  • Fig. 8 is a detail front view of the thread holder casing removed from the shuttle;
  • Fig. 9 is a detail sectional plan view of the shuttle and thread holder casing, a portion of the thread holder casing being shown in section on the line 9 of Fig. 8;
  • Fig. 10 is a detail View illustrating somewhat diagrammatically the action ofthe whirl in carrying the thread around the needle;
  • Fig. 11 is a detail sectional plan view illustrating the relative arrangement of the needle and loop spreader.
  • the machine illustrated in the drawings is the same in the construction, arrangement and mode of operation of its various parts as the machine disclosed in the application of Bernard T. Leveque hereinbefore referred to.
  • the machine comprises a column 2 in the lower portion of which is mounted an electric motor 4 by which the operating parts of the machine are driven.
  • the main cam shaft or, as it may conveniently be termed, the sewing shaft, is indicated at 6 and is journalled inthe upper portion of the column.
  • the shaft 6 is driven from the motor 4 through a clutch 8, horizontal shafts 10 and 12 in the base of the machine and a vertical shaft 14.
  • the clutch 8 is controlled from a treadle lever 16 by means of which the clutch may be actuated to connect and disconnect the shafts 10 and l2 from the source of power.
  • the shoe supporting horn is indicated at '18 and is provided'in its tip with a whirl of usual construction whichv is driven through suitable connections from the ver-.
  • the straight hook needle 26 and the discoidal shuttle 28 are actuated from the sewing shaft 6 in the same manner as in the machine of the Leveque application.
  • connections between the sewing shaft and the needle comprise a crank pin upon the forward end of the sewing shaft, a slotted lever 30 engaged by the pin, a needle actuating lever 32, a latch 34 connecting the slotted lever and the needle actuating'lever, and a link connecting the "needle actuating lever to the needle bar 36.
  • the shuttle is driven from the needle actuating lever 82 through a link which connects a downward extension from the hub of the lever to the upwardly extending arm of the shuttle ac-- tuating gear segment 38. This segment meshes with a pinion 40 mounted upon the shuttle driver shaft 42.
  • the lever 32 can be disconnected from'the sewing shaft 6 when the needle and shuttle are stationary at the limit of their movements in one direction, whereby these parts can be brought to rest accurately with the needle loop still held in the hook of the needle and free from the shuttle.
  • the latch 34 is actuated from the starting and stopping treadle 16 on stopping the machine in the same manner as in the machine of the Leveque application, the
  • the connections from the stopping and starting treadle 16 for actuating the latch 34 comprise a rod 44 connecting the treadle with an arm 46 projecting from a cross shaft 48 mounted in the upper portion of the column.
  • This arm is provided with a lug 50 projecting laterally beneath a rearward extension of an arm 52 loosely mounted on the shaft 48 and connected at its forward end by a link 54 to a rock shaft upon the forward end of which the upwardly extending slotted arm 56 of the work feed ing mechanism is secured.
  • a heavy coiled spring surrounds the shaft 48 and tends to turn it in a clockwise direction. While the machine is running with the treadle 16 depressed the lug 50 is out of engagement with the arm 52.
  • the loop spreader which embodies that feature of the present invention relating to the spreading of the needle loop so as to (Ill permit the work: side of the needle loop to be readily severed after the 'machine stops is indicated at 58 and consistsofa suitably bent arm'or 'finger securedto the forward end of a: ca'rrierbarfiO.v
  • This loop spreader in addition to spreading the 'loop to'facllitate the cutting of the work side of the loop side'of the needle loop and separate it from thegother'si'deof the loop'the carrier bar 60 is supported by two parallel motion links 62 pivotally mounted at their inner ends upon a bracket fi tflforming that por tion of the machine frame in which the shut tle" driver shaft 42 is; mounted.
  • the a1 r'angement of the carrier bar BO-and links 62 isv such that as the linksare oscillated a'mo'vement back and forth in substantially a right line is imparted to' the loop spreader.
  • a block 66 is'pivotally mounted upon the pivotshaft on the shuttle actuating, gear segn'ient. 38 and is rigidly connected to the gearsegment by means of a bolt 68, and a suitably shaped cam groove is formed in the'block 66 which is engaged by a stud projecting upwardly from substantially the central point of the rear link 62.
  • the loop spreader is thus actuated from the needleactuating lever through theconnections which actuate "the shuttle and consequently the loop spreader is actuated in proper timed relation to ftheneedle and shuttle and its [movement isstopped simultaneously with the movements of the needle and shuttle;-
  • the loop spreader engages one side ofthe needle loop d'uring'the upward stroke of the needle and is still injengagement with the needle loop 1 when *the parts "come to restion stopping the machine 7 Y with the'needleat the limit of its upward stroke.
  • the supply side of the needle-loop is engaged and deflected by the loop spreader and the work side of the'loop is left in a positionwhere it can bereadily cut by a used in cutting theneedle loop.
  • the needle is arranged with its harbor open sidefacingbackwardly'into the machine at an angle to, the'line of feed
  • the needle harbor open side ofthe'needle faces at right angles to the line of feedidirectly' towards thenshuttle.
  • This arrangement of other in the-line of feed and separates the legs of the loop so that one legcanxbeehgaged'. by. the loop spreader during its straightline movement across rthe l'ine of feed
  • the whirl is rotated in. a direction to"ca1"ry the thread first to the shuttlesideof the needle,.that is,
  • the loop spreader 58 is actuated" during eachzstitch forming cycle f of the machine to spread the loop to receive the beak of the. shuttle; This relieves the 1 shuttle of .the necessity of taking the loop directly from the'needle 'andirenders the loop taking operation more certain and relif able while permitting the shuttle :to be placed entirely to one side of the needle .as'
  • the loop spreader is provided with anotch or shoulder 70 as best shown in Figs. :7 and 11, and in orderto ion 7 supportthe workside of thecneedle' loop against the thrustof the shuttle as well as the supply side of theloop,the'loo spreader is extended"outwardlybeyond t eshoulder to form Armger 72 which when the loop is'completelyvspread as indicated inFigs'.
  • the thread-holden' 'as illustrated consists of a 'cylindrical thread casing 76 the rear end of which is open to permit the insertion ofa cop-of thread while; the holder is removed fromthe-shuttle, and the front end of which, when the thread case is in position in the shuttle-forms .a closurefor the open end of t-hegshuttle casing. From the closed end "of the thread holder-casing a hollow stud-'78 projectsfin? wardly so as to 'form alcentral "support for the inserted thread cop.
  • tubular p1unger80 1 forms a l central thread passage for'ithe shuttle thread stud a hollow-plunger 8O isiar'r anged which n casing and-while the locking position.
  • the inter-engaging loekingldevioes at one side of the casing comprise a flange84l projecting radially rfrom the innerend ofthe thread cas-g V, g' and a slot formed in' the adjacent- Wall of the shuttle'casing to receive theflange;
  • a plungeri9 O is mounted in the hollow studkfZS and-is provided With an outwardly extending. end arranged to engage;
  • the shuttle racewaynis composed oftxvo parts each, having formed therein a; portion of the guldeway'jfor the-rim of the shuttle.
  • portion 100 of the 'guideway can thus be readily r,emoved ⁇ f ?Qm:the portion 96' hen: e U
  • the illustrated machine also is provided with a siinple andjefficient means f r discong f means in case the shuttle becomes clogged in its raceway; 1' To this.
  • devices including a straight hook needle, of V a shuttle, a shoe supporting horngarranged,
  • a shuttle a shoe supporting horn arranged to extendwithin the shoe, needle threading mechanism locatedwithin the horn, a loop spreader to engage and spread the needle loop for the entrance of the shuttle, and
  • the combination with the other stitch forming devices including a straight hook needle, of a shuttle, a shoe supporting horn arranged to extend within the shoe, needle threading mechanism located within the horn, a loop spreader to engage and spread the needle loop for the entrance of the shuttle, and means arranged to be rendered operative at the will of the operator, and acting automatically when rendered operative for stopping at will the needle, shuttle and loop,
  • a loop spreader to engage and spread the needle loop for theentrance of the shuttle, a sewing shaft and suitableconnections for actuating the needle, shuttle and loop spreader, and means for disconnecting the sewing an oscillating disooidal shuttle, a shoe supporting horn arranged to extend within the shoe, a needle threading mechanism located within the horn, a reciprocatingloop spread:
  • the other'stitch formingde- E5 vices including a straight hook needle, of a shuttle, a shoe supporting horn arranged" to extend withinthe shoe, needle threading mechanism located within the horn, a loop,
  • loop spreader to engage and spread the needle loop for the entrance of the shuttle, said loop spreader being arranged to engage and deflect one leg of the needle loopjand being provided with a portion to support the other leg of the loop against the thrust of th'ei shuttle as the shuttle enters the loop.
  • the combination with the other stitch formingdei vices including a straight hook needle ofa shuttle, a shoe supporting horn arranged to extend within the shoe, needle threading mechanislnlocated within the horn, a loop spreader to engage and spread the needle loop for the entrance of the shuttle, a c'ar--- rier for the. loop spreader, parallel links supporting the carrier, and means for oscil-v lating one of said links.
  • de- I vices including a straight hook needle, of a 12 5 shuttle, a shoe supporting horn arranged to extend within the shoe, needleithreading mechanism located within the'horn, aloop spreader to engage and spread the needle loop for the entrance of the shuttle, a shuttle drivingshaft, a pinion on the shaft,'an
  • the com-v bination, with the other stitch forming de-f vices including ashuttle, of a straight hook needle arranged with its barb facing at an angle tothe line of feed on the shuttle side of the needle, a horn arrangedto extend within the shoe, a needle threading-whirl locatedin the horn, means forrotatingthe a whirl in adire'ction to carry the thread first to the shuttle side of the needle, a loop spreadermounted to move in a right line I forflsupportifig and actuating the loop 6 q l i "l ,505,031

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US338756A 1929-02-09 1929-02-09 Shoe sewing machine Expired - Lifetime US1905031A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US338756A US1905031A (en) 1929-02-09 1929-02-09 Shoe sewing machine
DE1930590223D DE590223C (de) 1929-02-09 1930-01-23 Schuhwerknaehmaschine mit Schleifenspreizer
DE1930531450D DE531450C (de) 1929-02-09 1930-01-24 Schalenfoermiger Greifer fuer Doppelsteppstichnaehmaschinen
FR689573D FR689573A (fr) 1929-02-09 1930-02-07 Perfectionnements aux machines à coudre les chaussures
US448909A US1905032A (en) 1929-02-09 1930-05-01 Sewing machine shuttle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US338756A US1905031A (en) 1929-02-09 1929-02-09 Shoe sewing machine

Publications (1)

Publication Number Publication Date
US1905031A true US1905031A (en) 1933-04-25

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Application Number Title Priority Date Filing Date
US338756A Expired - Lifetime US1905031A (en) 1929-02-09 1929-02-09 Shoe sewing machine
US448909A Expired - Lifetime US1905032A (en) 1929-02-09 1930-05-01 Sewing machine shuttle

Family Applications After (1)

Application Number Title Priority Date Filing Date
US448909A Expired - Lifetime US1905032A (en) 1929-02-09 1930-05-01 Sewing machine shuttle

Country Status (3)

Country Link
US (2) US1905031A (fr)
DE (2) DE590223C (fr)
FR (1) FR689573A (fr)

Also Published As

Publication number Publication date
DE590223C (de) 1933-12-29
DE531450C (de) 1931-08-10
US1905032A (en) 1933-04-25
FR689573A (fr) 1930-09-09

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