US720762A - Type-writing machine. - Google Patents

Description

R.. E K L An W W G..

TYPE WRITING MACHINE. APPLIGATIQN FILED Nov. 26, 1902.

sz SHEETS-SHEET' 1.

N0 MODEL.

' nu: omas Pains cu., mrauno.. wps-Immun, pA c.V

NQ. 720,762. 'EATENTEE EEE. 17, 190s. c. W. WALKER. TYPE WRITING MACHINE.'

APPLIUATION FILED NOV. 26, 1902.

2 SEHEN-SHEET 2.

Eo MODEL.

`NrrfED STATES' PATENT CHARLES WV. WALKER, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO YOST WRITING MACHINE COMPANY, OF ILION, NE'W YORK, A lCORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 720,762, dated February 17, 1903.

Original application filed December 2l, 1901, Serial No. 86.821. Divided and this application iiled November 26,1902. Serial No. 132,890. (No model.)

To @ZZ whom, t may concern: rotate together. Fig. 5 is a longitudinal sec- Be it known that I, CHARLES W. WALKER, tional view taken through the right-hand end 5o a citizen of the United States, and a resident of the platen and its-associated parts, the of Bridgeport, in the county of Fairfield and view illustrating the disposition of the parts 5 State of Connecticut, have invented certain when the platen is free to be rotated indenew and useful Improvements in Type -Writpendently of the line-spacing wheel. Fig. 6 ing Machines, of which the following is a is a detail end view of certain parts of the specification. platen locking and releasing mechanism to My present invention relates to means for be hereinafter more fullydescribed. Fig. 7

1o affording an ordinary line-spacing or a difteris a side view of the same with parts broken ential feed of the platen, as may be desired, away, the view looking in the direction of the so that the platen may be intermittently roarrow in Eig. 6. Fig. 8 is alongitudinal sec- 6o tated a given distance at each operation in tional view of certain of the parts represented the usual manner by the line-spacing mechin Fig. 6, the section being taken on the line anism, or may be turned to any7 desired eX- m n: of Fig. 6. Figs. 9, 1l, 12, 14., 15, and 16 tent forditterential spacing, so as to bring anp7 are det-ail perspective views of portions of the space or line of the blank or sheet to the printplaten releasing andlocking mechanism. Fig. 65 ing-line. l0 is a detail fragmentary longitudinal sec- A further object of my invention is to protional view of the platen releasing and lockvide a construction wherein the relation being mechanism, the section being taken on tween the line-spacing wheel and platen is the line y y of Figz and looking in the dichanged from time to time, so `that the imrection of the arrow in said figure and with 70 pact of the types on the platen will he disportions of the structure omitted. Fig. 13 is tributed over the entire surface of the platen an end view of the carriage looking in the diinstead of being received on given lines. rection of the arrow in Fig. l. Fig. 17 is a To the above ends my invention consists of detail perspective view ot' the linespacing the novel features of construction, arrangeratchet wheel or ring. 75 ments of parts, and combinations of devices The present case is a division of my applito be hereinafter described, and particularly cation, Serial No. 86,821, filed December 2l, 3o pointed out in the appended claims. 1901.

In the accompanying drawings, wherein A platen-frame l is connected to a carriage like reference characters indicate correspond- 2 and supports a platen 3, that is adapted to 8o ing parts in the various views, Figure l is a rotate in bearings therein. The finger-wheel plan view of a type-writer carriage, showing l at the left-hand endof the platen has a stem the devices of my invention applied' thereto. 5, which is journaled in the platen-frame and Fig. 2 is an enlarged detail longitudinal secwhich projects into a sleeve 6, a set-screw '7 tional` View of the platen`and the devices cobeing received within athreaded opening in 85 operating therewith, the view illustrating the the sleeve and bearing at its inner end against positions of the parts when the platen and the stem to connect the stem and sleeve to- 40 line-spacing wheel are locked to rotate together. The sleeve 6 constitutes an integral .get-her. Fig. 3 is an enlarged detail fragmenportion of a platen-head 8, that is secured to tarytransverse sectional view taken through the core 9 of the platen by screws 10. From 9o the line-spacing wheel and illustrating a disan examination of Fig. 2 it will be seen that position of the part-s which permits the platen a headed rod 11 extends through the left-hand to be rotated independently of the line-spacplaten-head and has its head seated in an opening wheel. Fig. LL is a like view ofthe same, ing l2 in the sleeve 6 and is threaded at its inshowing a disposition of the parts when the ner end 13 to engage a screw-threaded open- 95 line-spacing wheel and platen are locked to ingin an eXteriorly-threaded plug M ,whichis screwed into the inner end of a housing 15. (Shown in detail in Fig. 14.) This housing is formed with a circular circumferential flange 16, provided with threaded holes 17 :for the reception of machine-screws 18, (see Fig. 10,) which pass through openings in a ring 19 to unite the ring and housing. The housing 15 has laterally-extending lugs 20,that are seated in an aperture 21 in the core 9 of the platen, as indicated in Figs. 2, 5, and 7, and thus prevent a rotation of the housing with relation to the platen. The housing 15 is likewise apertured transversely at 22 for the reception of an engaging piece or lever 23,which is shown in detail in Fig. 11. This engaging piece comprises a segmental end 24 and a laterally-eXtending lever-arm 25. Pivoted Within the recess 22 in the housing, on a pin 26 supported in the lugs 20, is a bent lever 27, provided with a long arm 27X, that extends transversely of the platen ,and a short arm that carries an antifriction-roller 28, that bears upon the free end of the lever-arm 25 of the engaging piece. The segmental end 24 of the engaging piece is seated within a circular iuternal groove 29, formed in the platen feed or line-spacing ring or wheel 30, which is shown in detail in Fig. 17. This ring bears at one side against the face of the ring 19, which is secured to the housing, and the feed-ring 30 is adapted to rotate independently of the platen and of the housing. The feed or spacing ring is provided with teeth 31 on the periphery thereof and with teeth 32 on its end face and is maintained against displacement on the platen by a ring 33, (shown in detail in Fig. 16,) that is internally screw-threaded at 34 to enable it to coperate with the screwthreads 35 on the housing and to be supported thereby. Openings 36 may be provided in the ring 33 to facilitate the mounting thereof by means of a Spanner-wrench. Contained within the housing is an expansion-spring 37, which bears at one end against the long arm of the lever or engaging piece 27 and at its opposite end against the screw-threaded adjustable plug 14, by means of which the tension of the spring may be varied.

Projecting through the right-hand lingerwh eel 38 of the platen is a hand-operated plunger-rod 39, which passes through an opening 40 in the engaging piece and bears against the long arm 27X of the lever 27. This plungerrod is provided With a laterally-extending pin 41, that limits the outward movement thereof and affords a bearing for a spring 42, that is contained within a recess 43 in the stem or hub 38ad of the finger-Wheel and bears at its opposite end against an end Wall of the recess to normally maintain the plunger-rod in its outermost position, as shown in Fig. 2. From an examination of Fig. 4 it will be seen that the segmental portion 24 of the engaging piece 23 is seated within the internal groove 29 of the line-space feed-ring 30 and bears by a leverage action against the side walls 44 of the groove which form fulcrum-points for the engaging piece when it is under tension of the spring 37, so that by the pressure of the lever 27 the platen is caused to rotate with the linespacing ring when the latter is turned. When, however, it is desired to rotate the platen independently of the feed wheel or ring, it is merely necessary to push inthe plunger-rod 39, and thus move the two-arm lever 27 against the tension of its spring, thus relieving the friction clutch or lever 23 from pressure and permitting it to assume the position shown in Figs. 3 and 5, when the platen is free to be rotated by either linger-wheel independently of the platen feed-Wheel 30 for any desired distance in either direction. By reason of the employment of a leverage action and of the use of long lever-arms 25 and 27 a powerful and efficient binding action of the segmental portion 24 against the side walls of the groove is secured when the parts are in their normal positions,and hence when the line-spacing ring is rotated the platen is caused to turn therewith. Owing to the powerful leverage obtained it is necessary to use only a comparatively Weak spring 37 to secure a firm and efficient connection or engagement between the platen and the line-spacing ring and one which may be easily released by an endwise movement of the rod 39.

It will be understood that by merely unscrewing the rod 11 from the housing the entire platen-releasing mechanism at the righthand end of the platen may be disconnected therefrom Without dismountingother portions of the structure, provided the platen is detached from its supporting-frame 1. lt will also be seen that the platen-release mechanism may be put together or assembled apart from the platen and then subsequently attached thereto simply by screwing in the rod l1, the hand-wheel 38 being attached after the platen is mounted in its frame.

The spring 42 may be dispensed with, inasmuch as the expansion-spring 37 is sufficient to restore the plunger-rod 39 to its normal position; but the spring 42 is provided, nevertheless,principally to prevent any shake of the rod 39 in its bearings. The hub or hollow stem 38a of the hand-wheel 38 passes through the end bar 45 of the platen-frame and is secured at its inner shouldered end by a screw 46 in the outwardly-projecting bosslike portion 47 of the housing.

Cooperating With the peripheral teeth 31 on the feed-wheel is a detent or pressure roller 48, which is mounted in bearings upon a spring 49, secured to the platen-frame at 50. A line-spacing pawl 51 coperates with the teeth 32 on the side of the wheel and is actuated by a rock-shaft 52, that turns in bearings 53 on the platen-frame. The forward end of the rock-shaft has secured thereto a finger-piece 54, by which the rock-shaft may be turned to actuate the line-spacing pawl 51, and thus effect a line-feed movement of the platen, as common heretofore in Yost machines.

The above-described means by which the platen may be rotated with orindependently of the line-spacing Wheel 30 enable the operator to turn the platen to any desired position for irregular spacing or to bring a portion of the paper to the printing-line, which could not be brought there by the regular line-spacing mechanism.

From the foregoing description it will be seen that the engaging piece or lever 23 is loosely seated in the transverse opening 22 of the housing and is not pivoted, but is mounted in such a manner that it not only grips the line-spacing Wheel, but also fulcrums thereon, so that great power is exerted by said lever on the line-spacing wheel to connect it and the platen to rotate together. It will also be seen that spring actuating means are provided for normally exerting a pressure on said lever to edect a connection between the line-spacing Wheel and platen; that the said spring actuating means likewise apply pressure to the rod or spindle 39 to move it in one direction or to the normal position, and that the rod -or spindle may be moved by hand in an opposite direction and in opposition to said actuating means to af` It' ford a releasing action of the lever 23. will likewise be observed that the levers 27 and 23 constitute compound levers, one of which, 27, is pivoted to the platen and the other, 23, fulcrums on and Vgrips the linespacing Wheel; that the spring 37 bears on the long arm of the lever 27 and the power of the spring is applied through the short arm of the lever 27 to the long arm of the lever 23, and that by this construction a iirm and powerful grip on the line-spacing Wheel is obtained and a rigid connection normally established between the line-spacing Wheel and platen. v

Various changes in construction may be made Without departing from the spirit of my invention. Thus,'for instance, While I have shown the engaging piece 24 and the oppo` sitely-disposed engaging Walls 44 of the linespacing ring as having smooth orfricti'onal faces it should be understood that from certain aspects of my invention they may be roughened or serrated, though in practice it has been found that the frict-ional faces provide a rigid binding of the parts.

What I claim as new, and desire to secure by Letters Patent, is

l. In a type-Writing machine, the combination of a platen, a line-spacing Wheel provided with oppositely-disposed engaging Walls, a lever-like engaging piece that cooperates with the engaging Walls of the ring and exerts binding pressure thereon by a leverage action and means for moving said engaging piece.

2. In a type-Writing machine, the combination of a platen, a line-spacing Wheel provided with opposite-ly-disposed engaging walls, a lever-like engaging piece that cooperates with the engaging Walls of the ring and'fulcrnms thereon and exerts binding pressure on both Wallsby a leverage action and means for moving said engaging piece.

3. In' a type-wri tin g machine, the combination of a platen, a line-spacing wheel provided with oppositely-di'sposed engaging Walls, a 1ever-like engaging piece that coperates with the engaging Walls of the ring and fulcrums thereon and exerts binding pressure on both Walls by a leverage action, spring-pressed means for normally maintaining the engaging piece in engagement with the engaging walls of said ring, and hand-operated means for moving said engaging piece against the tension of its spring.

4. In a type-Writing machine, the combination of a platen, a line-spacing Wheel provided with oppositely-disposed engaging Walls having frictional or smooth faces, and a lever-like engaging piece that has frictional engaging faces that cooperate with the fricticnal faces of the engaging walls and fulcrum thereon. 5. In a type-Writing machine, the combination of a platen, a platen feed-ring, an internal groove in said ring, an engaging piece connected to said platen and arranged within said groove andl binding against the side walls thereof by a leverage action to lock the said ring and platen to rotate together, a springpressed actuating-lever bearing against the said engaging piece, and hand operated means for moving the actuating-lever against the tension of its spring to release the engaging piece so that the platen may be rotated independently of the feed-ring.

` 6. In a type-Writing machine, the combination of a platen, a platen feed-ring, an internal groove in said ring, an engaging piece which extends into said groove, a housing which is removably seated Within and turns with saidv platen and has a transverse opening for the reception of said engaging piece to cause the engaging piece and housing to rotate together, a spring-pressed actuatinglever Within the housing and bearing against the said engaging piece, and hand-operated means for moving the actuating-lever and relieving the engaging piecefrom pressure, so that the platen may be rotated independently of the feed-ring.

7. In a type-Writing machine, the combination of'a platen, a housing which has a trans- -verse opening therein and is provided with laterally-extending lugs that are seated in an aperture in the platen to cause the. platen and housing to rotate together, a platen feedring which iscarried by said housing and is adapted to rotate independently thereof, an internal groove in said ring, an engaging piece which extends into the transverse openring in the housing and into the internal groove in the said ring, a spring-pressed actuatinglever which is pivoted Within the transverse opening in the housing and cooperates with the engaging piece, hand-operated means for i-'inovin g said actuating-lever against the ten# IOO IIO

sion of its spring, and a connecting-rod which extends through the platen and holds the housing within the platen.

8. In a type-Writing machine, the combination of a platen, a platen feed-ring with relation to which the platen is adapted to receive an independent rotation, an internal engaging groove in said ring, and a spring-pressed locking-piece Within said groove and which is fulcrumed on and adapted to bind against the side Walls of said groove by a leverage action to lock the said ring and platen to rotate together.

9. In a type-Writing machine, the combination of a platen, a platen feed-ring with relation to which the platen is adapted to receive an independent rotation, an internal engaging groove in said ring, a locking-.piece Within said groove and fulcrumed on the walls thereof, a lever-arm connected to said lockingpiece, a spring-pressed two-arm lever coperating With the lever-arm, and hand-operated means for moving said two-arm lever against t-he tension of its spring.

10. In a type-Writing machine, the combination of a platen, a platen feed-ring with relation to which the platen is adapted to receive an independent rotation, an internal engaging groove in said ring, a segmental locking-piece Within said groove and fulcrumed on the Walls thereof, a transverselyextending lever-arm connected to said segmental locking-piece, a spring-pressed twoarm lever coperating with the lever-arm and a long arm of said lever extending transversely of the platen, and a hand-operated plunger for moving said two-arm lever against the tension of its spring.

11. In a type-Writing machine, the combination of a platen, a platen feed-ring, an internal engaging groove in said ring, a segmental iiat locking-plate seated Within said groove and which is adapted to bind laterally against the side walls of said groove by a leverage action to lock the said ring and platen to rotate together, a transversely-extending lever-arm connected to said segmental locking-plate, a spring-pressed two-arm actuating-lever, an antifriction-roller carried by said two-arm actuating-lever and adapted to bear against the said lever-arm, and a handoperated longitudinally-movable spindle for moving the two-arm actuating-lever against the tension of its spring to release the locking-plate.

12. In a type-Writing machine, the combination of a platen, a platen feed-ring with relation to which the platen is adapted to receive an independent rotation, an internal engaging groove in said ring, locking-plate seated within said groove and which is adapted to bind laterally against the side Walls of said groove by a leverage action on said walls to lock the said ring and platen to rotate together, said plate extending transversely substantially throughout the diameter of the platen, a spring-pressed two-arm actuatinglever coperating With the said plate and adapted to bear against it, and hand-operated means for moving the two-arm actuating-lever against the tension of its spring to release the locking-plate.

13. In a type-Writing machine, the combination of a platen, a platen feed-ring with relation to which the platen may receive an in dependent rotation, an internal engaging groove in said ring, a locking-piece seated Within said groove and fulcrumed on and adapted to bind against the side Walls of said groove by a leverage action exerted thereon, spring-pressed means for normally maintaining the locking -piece in engagement, and hand-operated means for releasing said locking-piece from engagement.

14. Ina type-writing machine, the combination of a platen, a platen feed-ring With relation to which the platen may receive an independent rotation, an internal engaging groove in said ring, a locking-piece seated Within said groove and fulcrumed on and adapted to bind against the side Walls of said groove by a leverage action, spring-pressed means for normally maintaining the lockingpiece in engagement, means for varying the tension of said spring-pressed means, and hand-operated means for releasing said locking-piece from engagement.

15. In a type-Writing machine, the combination of a line-spacing Wheel, a platen adapted to be rotated independently thereof, and a lever that fulcrums upon and also grips said line-spacing wheel and connects the Wheel .and platen so that normally they may rotate together.

16. In a type-Writing machine, the combination of a line-spacing Wheel, a platen adapt- ICO ed to be rotated independently thereof, a lever that fulcrums upon and also grips said line-spacing Wheel and connects the wheel and platen so that normally they may rotate together, and spring-actuated means for normally exerting a pressure on said lever.

17. In a type-Writing machine, the combination of a line-spacing Wheel, a platen adapted to be rotated independently thereof, a lever that fulcrums upon and also grips said line-spacing Wheel and connects the Wheel and platen so that normally they may rotate together, spring-actuated means for normally exerting a pressure on said lever, and handoperated means for relieving the pressure of said spring-actuated means on the lever and therebyY release the platen to be rotated independently of the line-spacing Wheel.

1S. In a type-Writing machine, the combination of a line-spacin g Wheel, a platen adapted to be rotated independently thereof, a lever that fulcrums upon and also grips said linespacing Wheel, a hand-operated rod or spindle for releasing the gripping action of the lever, a spring, and means for applying the pressure of said spring to the lever and to said IIO IIS

' of, a spring for moving said device in one direction, and a hand-operated rod or yspindle for moving the device in the opposite direction and in opposition to said spring.

20. In a type-Writing machine, the combination of a line-spacing wheel, a platen adapted to be rotated independently thereof, and

compound levers for connecting the line-spacing Wheel and platen to rotate together.

21. In a type-Writing machine, the combination of a line-spacing Wheel, a platen adapted to he rotated independently thereof, and

compound levers, one of which fulcrums on and grips the line-spacing Wheel and connects Said Wheel and platen to rotate together.

22. In a type-Writing machine, the combination of a line-spacing Wheel, a platen adapt-V ed to be rotated independently thereof, springpressed compound levers that are adapted to connect the line-spacing wheel and platen together, and hand-operated means for alording a movement of said levers in opposition' to their spring-pressure.

23. In a type-Writing machine, the combi-V nation of a line-spacing Wheel, a platen adapt-l ed to be rotated independently thereof, springpressed compound levers, one of which fulcrums on and -grips the line-spacing wheel and connects said Wheel and platen to rotate together,and hand-operated means for affording a movementof the said levers to effect a release of the platen from the line-spacing Wheel.

V24. In a type-Writing machine, the combination of a line-spacin g Wheel, a platen and a kpair of levers coacting to connect the Wheel and the platen together, one lever being piv- =otally attached to the platen and the other kloeing connected to the line-spacing wheel.

25. lIn a type-Writing machine, the combination of a line-spacing Wheel,a platen, the spring-pressed bentV lever 27 connected to the platen and the coacting lever 23 connected to Ythe line-spacingwheel. Y

Signed in the borough of Manhattam-ciy `of New York, in the count)T of New York and State of New-York, this 24th day of Novemher, A. D. 1902.

CHARLES W. WALKER.

IVitneHsses:

K. V. DONOVAN, E. M. WELLS.

Images