US1647850A - Typewriting machine - Google Patents

Typewriting machine Download PDF

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Publication number
US1647850A
US1647850A US757545A US75754524A US1647850A US 1647850 A US1647850 A US 1647850A US 757545 A US757545 A US 757545A US 75754524 A US75754524 A US 75754524A US 1647850 A US1647850 A US 1647850A
Authority
US
United States
Prior art keywords
line spacing
locking
machine
carriage
platen
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
US757545A
Other languages
English (en)
Inventor
Edwin E Barney
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.)
Remington Typewriter Co
Original Assignee
Remington Typewriter Co
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 Remington Typewriter Co filed Critical Remington Typewriter Co
Priority to US757545A priority Critical patent/US1647850A/en
Priority to GB14400/25A priority patent/GB244699A/en
Priority to FR601508D priority patent/FR601508A/fr
Priority to DER64674D priority patent/DE457900C/de
Application granted granted Critical
Publication of US1647850A publication Critical patent/US1647850A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J19/00—Character- or line-spacing mechanisms
    • B41J19/76—Line-spacing mechanisms
    • B41J19/78—Positive-feed mechanisms
    • B41J19/80—Pawl-and-ratchet mechanisms
    • B41J19/82—Pawl-and-ratchet mechanisms moving a paper or like carriage
    • B41J19/84—Pawl-and-ratchet mechanisms moving a paper or like carriage in the form of a roller rotated for line spacing

Definitions

  • My invention relates to typewriting or like In'achines and more particularly to the line spacing mechanism thereof, and also to other-features associated with the line spacing mechanism. 7 v
  • one of the objects-of a my invention is to produce an im roved line spacing mechanism which is simple and 'comact in construction, inexpensive to mantrlacture and highly efiiciehtinuse.
  • a further object of myinvention, generstated, is to provide a construction by ⁇ vhi'ch the line spacing mechanism is auto-v "ihaticaliy locked against effective operation when the machine is otherwise conditioned for enclosure Within its carrying case and for transportation; a rs-conditioning of other parts of the machine for use automatically releasingthe lock of the line spac- 0 the above d other e which ni s hereinafter appear, my nvention cong t m the featiires'of construction,-arrangementsof parts, and combinationsbt devices set forth in the following description/and pz'irtrcularly pointed me. in the appended claims.
  • Figure l is a fragmentary rear 'elevation of a machine embodying my invention
  • Figure 2 is an enlarged fragmentary end elevation of the carriage and associated parts, as seen When 'looking'towards the left- Yh'and end of the carriage; the parts being shown 'conclitioned for use.
  • Figure 3 is 'a like view of the same with the @arts shown conditioned for enclosure Within the carrying case.
  • I a i Figure l is' a fragmentary top plan view, with parts in sectiomofthe' jleilt hand end portion of the carriage and some of the associated parts
  • I Figure 5 isavertical sectional vieW of the same taken on the line 5- -5, of Figure 2 and looking in the direction of the arrows at said lme.
  • v k I ignre 6 is a fragmentary detailslde vlew
  • Figure 7 is an end-elevation, with parts section and parts omitted, of the line spac l mg n'iec-hanism.
  • the mainframe of the machine comprises an inner iram'e 1 which supports the various 9 i-Working parts of the machine and an outer sheet metal' frame 2 that surrounds the inner "Q. pelted oh and atta-chedto a baseboard a,
  • the frameetth machine is supwhich constitutes the bottom of a Carrying ease;
  • the carriage support"3,' which constitutes part 0% the case shift frame, is provided with grooved guide rails 4 that receive -crossed-bearing rolle'r sh. These rollers also co a ct with gui'de rails *6 on the main body or base plate 7 of the springimpelled fearriage, to support the latter for traveling movement from sideto side of the machine.
  • the feed rack may be swung rearwardly to release it from the dog 10.
  • the Remington portable machine is provided with a center lock and automatic carriage release combined with the finger wheel of the platen and its spindle so that when the finger wheel is in an expanded position for use, as indicated in dotted lines in Fig. 1, it will stand in the path of a side wall Z) of the cover 0 of the carrying case and prevent said cover from being closed.
  • means which compel a release of the carriage from restraint of its escapement mechanism and a rendering of the center lock effective before the finger wheel of the platen can be moved to compact position shown in full lines in Fig. 1.
  • the main body or base plate 7 of the car riage is provided with end plates 19 and 20, each having afoot piece 19 and 20 respectively, secured by screws 18 to the base plate 7. These end plates constitute supports for a cylindrical platen 21.
  • the righthand end plate 19 carries a bushing 22 that receives and supports one end of a spindle 23 of the platen. The other end of this spindle is supported in a bushing 2% secured in the left-hand end plate 20. As shown in Fig.
  • the spindle s3 is connected to the platen by a spline projection 25 on the platen head, said projection being received in a spline groove 26 in the spindle, and by these means the platen and spindle are connected to turn together, although the spindle may be shifted longitudinally of the platen independently thereof.
  • the bushing 24 (see Fig. 5) is riveted at 9.7 over the inner side of a bearing ring 28, thus firmly connecting the headed bushing 24- to the end plate 20, and firmly securing the bearing ring in place.
  • This carrier 29 is preferably made of sheet metal, and is formed with a laterally projecting arm 30 that extends inwardly across the plane of the line spacing wheel 31 secured to the platen.
  • the arm 30 terminates in a depending ear 32 (Fig. 7) that constitutes a support for one end of a pivot pin 33, the opposite end of which is secured in the body portion of the carrier 99.
  • This pin 33 is received within the bearing portion B-l of a sheet metal line spacing pawl, designated as a whole by the reference numeral
  • a spring 36 is coiled around the pin 33 and bears at one end against the arm of the pawl-carrier and at the other end against the pawl. The force of this spring is exerted to turn the line spacing pawl around its pivot 33 towards the teeth of the line spacing wheel.
  • the pawl is formed with a hook-like engaging tooth or edge 37 which is adapted to engage the teeth of the line spacing wheel, and with an edge,.abutmcnt or stop face 38 which coacts with an undercut inclined stop face 39 formed on the end plate 20 of the carriage, as shown in Fig. 7.
  • These stops 2-58 and 3-) co-act not only to limit the line spacing movement of the pawl and the parts connected therewith and actuated thereby, but
  • a spring $0 for returning the pawl carrier and the parts connected therewith to normal position (Fig. 2) is looped around a headed screw l1 carried by the end plate 20 and bears downwardly at one free end against a shouldered screw 42 (Fig. 5) carried by the end plate 20.
  • the other free end of the spring it) bears upwardly against a pin 43 2 and '7) that is carried by an arm ll bent inwardly from the carrier 29, so that the pin 4:3 may be located in the plane of the body portion of said plate-like carrier, and the spring -l0 exerts its force against the carrier in the same plane.
  • the carrier 29 receives a bearing on the ring 28, as shown in Fig. 5, whereas the carrier bears at its outer side against the inner face of the end plate 20.
  • a spacing ring a5 is supported on the bearing ring 28 and is interposed between the inner face of the pawlcarrier 20 and the outer face of the line spacing wheel, and the pawl carrier is thus maintained against axial movement, though it is free to turn.
  • Said device comprises ahollow knurled head 52 adapted to receive a coiled expansion spring 53, which surrounds the stem of a headed shoulder screw or pin 54' secured to the end plate 20 of the carriage.
  • the head 52 is adapted to slide axially on the supporting screw 54% and also to receive a turning adjustment thereon.
  • the spring 53 hears at one end against the bottom wall of the opening in the head 52 and at its other end against the head of the screw 54; exerting its force to maintain the inner end of the member 52 against the outer face of the end plate 20.
  • a flange 55 formed on the This is in order to facilitate a forinner end of the head 52, is provided, as shown in Figs. 2 and 3, with two semi-circular locking notches or recesses 56 and 57,
  • a locking pin 61 projects outwardly from and is fixed to the end plate 20, its axis being parallel with the axis of the pin 54. on which the regulating device is mounted. From an inspection of Fig. 6 it will be seen that the pin 61 is of two diameters, as indicated at 62 and 63. The part 62 nearest the base of the pin is cylindrical, corresponding to the full diameter of the pin, whereas the part 63 at the outer end portion of the pin is cut away nearest the member 52, forming substantially a semi-circular portion. As will be understood from a consideration of Figs.
  • One side edge 64 of the flange 55 of the regulating device constitutes an inclined shield on which the engaging end 3'] of the line spacing pawl normally rests and is adapted to move, as shown in Figs. 2, 3 and 5. It will be seen that a rotative clockwise adjustment of the regulating member 51 from the Fig. 2 to its other position, will cause the line spacing pawl to take up or engage a tooth of the line spacing wheel at a later point in thethrow of the pawl than when the member 51 is adjusted to the position shown, thereby effecting a single instead of a double tooth movement of the line spacing wheel and platen.
  • a spring pressed roller detent (35 co-acts with the tooth of the line spacing wheel to insure a proper line spacing of the platen at its actuation and to hold it against accidental displacement from such position.
  • a sheet metal controlling member (Stl is arranged on the outer side of the end plate 20, being pivoted thereto on the stem of a headed nut (57 which co-acts with the screw 4-2, as indicated in Fig. 5.
  • the member (36 has a recess or slot (56 therein which conforms substantially to the slot 20 in the plate 20 when the member (56 is in the normal, or Fig.
  • the controlling member 66 has a locking finger (it) that moves in a cross slot 70 in the bushing 24, and extends across the bore of the bushing and into the path of longitudinal movement of the spindle 2 3, as shown in Fig. 2, or clears the path of said spindle, as shown in Fig. 3, depending on the position to which the member 66 is turned on its pivot.
  • a locking finger it
  • the locking finger (59 is in the path of the spindle 23 and prevents it and the finger wheel 71, secured to the right-hand end of the spindle, from being moved from the dotted to the full line position shown in Fig. l. lVhen. however, the controlling member 66 is shifted to the Fig. position with the aid of a finger piece 72 on said member, then the finger wheel 71 may be moved to the full line compact position shown in Fig. 1, thereby projecting the spindle across the path of return movement of the locking finger 69. The latter will then be at rest on the spindle 2*, preventing a return movement of the member 66 and the parts controlled thereby from the Fig. 3 position, although a returning spring 73, which co-acts with the member 66, is tending to turn it around its pivot to the Fig. 2 position.
  • tiuch efiective position is one where the locking finger 74: will co-act, during the mo ement of the carriage in its line of travel from either right or left to a centered position, with a second relatively fixed engaging mem her.
  • This last mentioned member as shown comprises a spring metal member 76 secured at one end by a screw 77 to the underside of the carriage support 3.
  • This member 76 has an upwardly projecting portion 78 that extends through a slot 79 in the carriage support and has two inclined upper edges 50 on opposite sides of a locking notch 81 in which the locking finger 74. is adapted to be seated.
  • the pawlcarrier 29 is in the nature of a lever of the first order pivoted to turn around the axis of the platen
  • thehand actuated line spacing lever 46 is in the nature of a lever of the second order having direct connection with said first mentioned lever by the pin and slot connection 49 50; and that the construction and arrangement of these and other parts of the line spacing mechanism are such that they are simple, compact, easy and cheap to manufacture and assemble, and highly efficient in use.
  • the combination of line spacing mechanism, locking means therefor comprising a normally ineffective obstruction adapted to be shifted into the path of a part of the line spacing mechanism to block the operation thereof, and means for compelling the shifting of said obstruction into obstructing position before the cover of said case can be closed.
  • a. platen a line space pawl carrier fulcrumed to turn on the axis of said platen and extending to opposite sides of said axis, said pawl carrier being'providcd on one side of said axis with a line spacing pawl and being formed on the opposite side of said axis with a slot, and a line spacing lever pivoted at its lower end and provided between its ends with a pin engaging with said slot.
  • a carriage having an end plate with an opening therethrough, a platen, a line spacing pawl-carrierhaving a slotth'erein and mounted at one side of said end plate, a line spacing lever mounted at the opposite side of said plate, and an intermediate actuating connection between said pawl carrier and lever comprising a pm can ried by said lever working in the slot in said pawl carrier, said pin extending through said opening in the end plate.
  • a carriage having an end plate with an opening therethrough, a platen, a line spacing pawl-carrier in the nature of a plate-like lever of the first order mounted at one side of said end plate to turn around the axis of the platen and having a slot therein, and a line spacing lever of the sec 0nd order provided with a finger piece at one end and having a laterally projecting pin which extendsthrough said opening in the end plate and into said slot in the ,pawl carrier to actuate the latter.
  • regulating means for determining the extent of line spacing movement comprising a fixed locking pin of two diameters, and an adjustable regulating device co-acting therewith to be locked in any one of several positions, said device being movable axially along the locking pin from the larger to the smaller diameter thereof to release said device and permit a rotative adjustment thereof.
  • portion thereof into register with either the larger or smaller diameter of the locking pin, in one instance to lock the device on the pin and in the vother instance to free the device from the pin.
  • regulating means for determining the extent of line spacing movement comprising a supporting pin, a regulating device supported thereby and mounted to receive a limited axial as well as a pivotal movement thereon, said device having an engaging portion with looking recesses therein, aspring co -operative with said device to move it to and normally nold it at the limit of its axial movement in one direction, and a fixed locking pin of two diameters, said pin being parallel with said supporting pin and adapted at its larger diameter to engage in one or another of said locking recesses and at its smaller diameter to render the engaging portion of said device free to pass the locking pin so that the device may be turned for pivotal adjustment.
  • regulating means for determining the extent of line spacing movement comprising a supporting pin, a regulating device supported thereby and mounted to receive a limited axial as well as a pivotal movement thereon, said device having an engaging portion with locking recesses therein, a spring co-operative with said device to move it to and normally hold it at the limit of its axial movement in one direction, a fixed locking pin of two diameters, said pin being parallel with said supporting pin and adapted at its larger diameter to engage in one or another of said locking recesses and at its smaller diameter to render the engaging portion of said device free to pass the locking pin so that the device may be turned for pivotal adjustment, and a shield carried by said regulating device and on which the line spacing pawl is adapted normally to rest.
  • regulating means for determining the extent of line spacing movement comprising a supporting pin, a regulating device supported thereby and mounted to receive a limited axial as well as a limited pivotal movement thereon, said device having a flange with spaced substantially semi-circular engaging notches therein and stops for limiting the pivotal adjustmentof said device, a spring bearing at one end against the supporting pin and at the other end against said device to move the latter to the limit of its axial movement in one direction, and a fixed locking pin of two diameters the larger one substantially cylindrical in shape at the base of the pin and the other substantially semi-cylindrical at the outer end portion thereof, the construction and arrangement of the parts being such that when the larger diameter of the locking pin is seated in a locking recess said device is held against pivotal adjustment and when said flange registers with the reduced diameter of the locking pin, said device may receive a pivotal adjustment until one or the other of said stops coacts with the locking pin, at
US757545A 1924-12-22 1924-12-22 Typewriting machine Expired - Lifetime US1647850A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US757545A US1647850A (en) 1924-12-22 1924-12-22 Typewriting machine
GB14400/25A GB244699A (en) 1924-12-22 1925-06-02 Typewriting machines
FR601508D FR601508A (fr) 1924-12-22 1925-06-13 Perfectionnement dans les machines à écrire
DER64674D DE457900C (de) 1924-12-22 1925-06-25 Schreibmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US757545A US1647850A (en) 1924-12-22 1924-12-22 Typewriting machine

Publications (1)

Publication Number Publication Date
US1647850A true US1647850A (en) 1927-11-01

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ID=25048230

Family Applications (1)

Application Number Title Priority Date Filing Date
US757545A Expired - Lifetime US1647850A (en) 1924-12-22 1924-12-22 Typewriting machine

Country Status (4)

Country Link
US (1) US1647850A (fr)
DE (1) DE457900C (fr)
FR (1) FR601508A (fr)
GB (1) GB244699A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239051A (en) * 1964-01-02 1966-03-08 Sperry Rand Corp Carriage locking means for business machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239051A (en) * 1964-01-02 1966-03-08 Sperry Rand Corp Carriage locking means for business machines

Also Published As

Publication number Publication date
FR601508A (fr) 1926-03-03
DE457900C (de) 1928-03-26
GB244699A (en) 1926-03-04

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