US1451278A - Typewriting machine - Google Patents

Description

Apr. 10, 1923.

1,451,278. B. C. STICKNEY TYPEWRITING MACHINE Filed May 12, 192 1 I I l 6 a /9 38 I /7 F '20 5 "-22? 3.9 20 2 40 El /7 Patented Apr. 10, 1923.

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TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE,

TYPEWRITING MACHINE.

application filed May 12,

T 0 all whom it may) concern Be it known that I, BURNHAM C. STICK- NEY, a citizen of the United States, residing in Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

This invention relates to typewriting machines adapted for use in preparing stencil or other cards, and is in the nature of an improvement on the patent to J. A. B. Smith, No. 1,219,598, dated March 20, 1917. i

In said patent, each card was placed ina holder and was linespaced by means of suitable racks connected with the .holder and meshing with pinions or gears fixed on the platen-axle, which was spacing by the usual line-spacing mechanism of the Underwood standard typewriter.

According to the present invention, the card-holder may be connected with I racks meshing with toothed members, preferably in the form of sectors, fixed on the platenshaft. v

To line-space the platen-axle, an arm fixed thereto maybe connected by suitable means, such as a link, to'a lever pivoted on the platen-frame. Control of the lever may :be effected by suitable means, such as a double pawl, pivoted on the lever, and a stationary toothed member, with which the teeth of said pawl will engage alternately, whereby actuation of the lever in line-spacing action will be limited to step-by-step movement, but movement in the opposite direction may be continuous throughout the range of movement of the lever.

The platen may be loose on its axle, and means may be provided whereby the platen will normally be held against rotation, but will be given a slight movement under certain conditions. Such means may comprise a ratchet-wheel and a link, connecting said ratchet-wheel with one end of the platen, so that the latter may be controlled bythe former. Normally, the ratchet-wheel will be held stationary by a suitable detent, but, upon a downward movement of the cardholder, the ratchet-wheel may be actuated by a pawl on the holder, thereby slightly rotating the platen. This rotation of the platen is herein referred to as a creeping actuated for lineaxle or shaft 2, which ends 3 and 4: of a platen-frame 5, forming to a bar 14. Provision" may also 1921. Serial No. 468,822.

movement becauseit' is of relatively slight extent as compared with theentire movement of the work-holder, v j s Other features and advantages will hereinafter appear. v i In the accompanying drawings, Figure 1 is a fragmentary plan view of the platen-frame of an Underwood standard I typewriter, thereto. I a

Figure 2 is a vertical section, takenv along the line 22 of Figure .1, looking in the direction of the arrows,

with the invention applied and shows the parts I 111 the positions assumed when the car-dp holder, is in its upper limiting position;

' Figure 3 is a view similar to F igure2, but showing the parts in the positions assumed when the card-holder is position.

Figure 4 is a fragmentary perspective view, showing a card supported in the holder in front of a short platen, in positionto en able typing to be effected on the card A short platen 1 is loosely mounted on an is journaled in the part of a carriage 6, slidably mounted on a frame 7. Preferably,

against movement longitudinally of the axle 2 by means of collars'8 fixe d to said axle,

and the axle itself is'held against longitudinal movement with reference to the platentheplaten 1 is held in its lower limiting frame by means of collars 9 fixed to the axle outside of the ends '3 and 4: of the: platenframe. i

A card 10 which may be a stencil-card comprising stencil material stretched across a frame 11 of pasteboard or other suitable material, may be inserted so that its lower edge enters pockets or hooks 12 at the lower ends of fingers, 13 secured at the upper ends I be made of spring-fingers 15 attached to fingers 13,, and

bent over said bar 14 and downwardly into position to engage the upper edge of the card 10 to hold. the same in position relative to the platen. It will be seen that the structure just described constitutes a holder.

At its ends, the bar 14 is connected to the upper ends of racks. 16,, which mesh with gear-members 17 in the form'of sectors fixed on the axle 2. The racks 16 are'held' in engagement with the sectors 17 "by flanges 18 13150 the platen surface, so as directed portion;

' the pivoted retaining 1 any suitable manner.

tooth 3.0, by means of aspring plates 19 pivoted on turned outwardly from being held against the axle 2, the plates movement longitudinally of the axle 2 by means of collars 2O fixed thereon. V The frame, composed of bar 14 and racks 16 se cured to its ends, may also be guided by pins 21 extending outwardly from the ends of the frame andprojecting into cam-slots 22 in plates 23 fixed on the top of the platen-frame. It will be noted that each cam-slot 22 comprises a vertical portion merging into a forwardly-directed cam-portion. which continues into a rearwardly and downwardly Thus the fingers .13 and racks 16, in the first part of their travel, move downward substantially in straight lines, but when the pins. 21 enter the forwardly-curved portions of the cam-slots, said fingers 13 and racks 16 are swung so as to carry their lower ends rearwardly to avoid triking portions of the machine frame which lie in their original path. Slight rearward curving of the cam-slots 22 at their lower ends serves to guide the holder, to properly present the card to the platen surface. It will also be noted that the flanges 18 of plates 19, by holding the racks in mesh with the gear-members 17 throughout the reciprocatingv movement, serve to maintain the relation of the fingers to hold the cardcarried by'said fingers, in operative position with reference to the platen. The line-spacing mechanism for axle 2, and, consequently, for the card-holder, may comprise a lever2 l, which. when actuated, will thrust rearwardly a linlr 25, suitably pivoted thereto, to move an arn 26, fixed on the axle 2, to which the linlr is pivoted at its rear end. The lever 24 swings about a pivot 27, preferably in the form of a shouldered screw, by which the lever is supported on a plate 28 secured to the platen-frame in Movement of. the lever in opposite directions may be limited by means of a pin 29 on plate28, the limiting. positions of the lever being indicated n full and in dot-and-dash lines in Figure 1.

i The plate 28 is provided with ratchetvteeth 30 in an are or" a circle about pivot 2'7,

and pivoted on lever 24: 15 a double pawl 31 comprising teeth 32 and 33 and the double pawl normally being held in position, with the tooth 32 engaging a ratchet- 35 fixed to the lever 24;, and movement of the handle 34: by the spring being limited by a pin 36. When it isidesired to line-space .the card-holder, the handle 34 is moved against the action of the spring 35 to release the tooth 32 from V the tooth 30, and then the handle as is advanced with the lever 24 until the latter is checked by engagement of the tooth 33 with another tooth 30. It will be evident that,

a handle 34,

with the tooth 30, the tooth 33 will be so positioned that, upon movement of the lever 24 through one space, the teeth 33 will engage a tooth 30 to prevent further movement. Upon releasing handle 34, the tooth 33 will be withdrawn and the tooth 32 again moved upon lifting the tooth 32 out of engagement into engagement with a tooth 30 by means be returned to its lower limiting position by swinging the lever 2 k to the left, Figure 1, or by merely forcing down the card-holder,v

According to the present invention, the platen is normally held stationary. To this end, a link 37 is connected by a pivot 38 to one end of the platen 1, and at the other end, by means of a pivot 39, to a ratchetwheel 10 rotatable about a stud orpivot 41 H on a bracket a2 secured Normally, the ratchet-wheel against operation gaging between successive teeth thereof, the pin 43 being carried by an armed pivoted at 45 on bracket 12 and urged toward the ratchet-wheel 10 by means of a spring 4:5. I

It is desired, however, rendering the wear more uniform, to cause the platen 1 to creep from time to time to present new portions-of the surface to the types 47 which are swungvinto engagement therewith by type-bars 17'. To this end, a pawl 4C8 is pivoted at 49 on a bracket 50 carried by the bar 14, and rearwardly by a spring 51 to a limiting position, in'which a pin 52 on the pawl 18 engages the upper edge ofthe bracket.

Ttwill be evident that, during the greater to the platen-frame. $10 is held by means of a pin 4l3enfor the purpose of the pawl 4:3 is urged part of the movement of the holder, the

platen will be held against rotation, but, upon downward movement of the holder from its upper position, indicated in Figure 2, a tooth 53 of thepawl 48 will engage a tooth of the ratchetewheel 40, and cause a slight rotation of the latter, and consequent creeping of the platen 1.. From inspection of, Figures 2 and 3, it will be seen that the platen will be caused to creep step by step in a counter-clockwise direction from the position shown in Figure 2 to that shown in 2 thereon,

movement of the lever 24 from the dot-anddash line position shown in Figure 1 to that shown in full lines, but such downward movement of the holder may also be eifected y swin 'ing the lever 24 to the left from the dot-and-dash line position to the full-line position in Figure 1.

Variations may be resorted to within the scope of the invention, improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, in combination, a rotatable platen, a work-holder, means for feeding said work-holder past the printing line, and normally inefi'ective means effective upon a return movement of said holder to cause the platen to creep.

2. In a typewriting machine, in combination, a normally stationary rotatable platen, a work-hol er, means for feeding said work-holder past the printing line, and means whereby the work-holder, during a minor portion of its movement only, will cause the platen to creep. v 3. In a typewriting machine, in combination, a normally stationary laten, a cardholder, and means actuable by the insertion of a card to a position to receive the first line of writing, creep.

4. In a typewriting machine, in combination, a normally stationary platen, an axle on which said platen is loosely mounted, work-feeding means connected to said axle, means to turn forward said axle step step to feed the in itsthe platen to creep.

57 In a typewriting machine. in combination. a normally stationary platen, an axle on which said platen is loosely mounted, a work-holder connected with said axle, so as to be actuable thereby, a pawl on said work,-

ceive the first line to be written.

6. In a typewriting machine, in combination. a normally stationary platen, an axle on which the platen is loosely mounted, a work-holder connected with said axle for actuation thereby. a toothed wheel adjacent one end of the platen, a link connecting said wheel to said end of the platen, and a pawl to actuate the latter, comprising and portions of the to cause the platen to lever, a double pawl normally positioned with one of its teeth engaging one of the teeth of a fixed segment, so as to prevent line-spacing by said lever, and a handle for said double pawl, upon movement of which the tooth of the pawl formerly in engagement with the tooth of the segment will be withdrawn, to enable the lever to be advanced to line-space the platen-axle, the movement of said handle being effective to move the other tooth of the double pawl into engagement with another tooth of the segment, to prevent movement of more than one step at a time. v

8. In a typewriting machine, in'combination, a normally stationary platen, an axle card-holder movable past the printing line in both directions, a connection between the holder and said axle, and operating means for said axle, comprising a. lever and controlling means for said lever, whereby the a time in a line-spacingdibe returned to its starting position inone movement. I p 9. In a typewriting machine, in combine step at a time in a lmespacing direction, but may be returned to ts starting posit on 1n one movement, and means whereby, upon a return movement of the lever, the platen will be caused to creep.

In a typewriting machine. in combination, a platen, an axle on which the platen is loosely mounted. a card-holder movable past the printing line in both directions. a connection between the holder and said axle, operating means for said axle,

-a lever, controlling means for said lever.

whereby the lever will be prevented from moving more than one step at a time in a line-spacing direction but maybe returned stationary, and means whereby, in said re? turn movement of to creep. I

11. In a typewritinc; machine, in combina tion, a normally stationary platen, a workholder, means for feeding said work-holder past the printing line, and means whereby the workholder. during a short portion of its movement only, will efi'ect a 'creepingof the platen. l

12. In a typewriting machine, incombination, a normally stationary platen, a cardpivoted on said lever,

the lever, the controlling; means will be actuated to cause said platen I holder, a lever, controlling means therefor, permitting step-by-step movement in one direction to different positions and permitting continuous movement in the opposite direction, and connections between said lever and said card-holder, whereby each position oi said lever will. correspond to a line-space position of said card-holder, said controlling means for said lever being adapted to yield upon downward movement of said holder and to permit the lever to be returned to its normal position.

13. In a typewriting machine, in combination, a normally stationary platen, a card holder, feeding means to advance said holder step by step and to return it in one movement, and means whereby said feeding means, in its return movement, will cause a creeping of the platen.

14L. In a typewriting machine, in combination, a normally stationary platen, a workholder associated. therewith, feeding means to line-space said holder past the printing line and return the same to normal position, a pawl, and means whereby said pawl will be actuated during the return movement of the work-holder to effect a creeping of said platen.

15. In tion, a normally stationary holder, means to line-space the work-holder comprising a pivoted lever, a double pawl pivoted on said lever normally positioned with, one of its teeth engaging a tooth of a fixed ratchet segment, so as normally to prevent line-spacing by said lever, a handle for said double pawl, upon movement of which the tooth of the double pawl, formerly in engagement with a tooth of the segment, will be withdrawn, to enable the lever to be ad vanced to line-space the work-holder, the movement of said handle being effective to move the other tooth of the double pawl into engagement with another tooth of the segment, to prevent movement of morethan one step at a time, and means whereby a return movement of creeping of said platen.

16. In a typewriting machine, in combination, a work-holder, an operating lever connected to the work-holder to advance and return therewith, and means co-acting with the lever to compel its advance to be made progressively in successive stages, each stroke being a single line-space in extent, but permitting the lever to be returned in the opposite directionto initial position, with the work-holder, in a single uninterrupted stroke.

17. In a typewriting machine, in combination, a normally stationary platen, a workholder movable past the printing line in both directions, a lever connected with said workholder, so that movement of one will effect movement of the other, detent means to a typewriting machine, in combinaplaten, a worksaid lever will effect a,

maintain said lever and work-holder in different line-space positions, means to limit the movement of said lever and holder in both directions, and means whereby, upon return movement of said lever and holder, creeping of the platen will be effected.

18. In a typewriting machine, in combination, a rotatable platen, a work-holder, means for feeding said work-holder past the printing line, controlling means for said platen normally holding the same stationary but effective, when actuated successively, to move said platen step by step in one direction until a limiting position is. reached, and then to move it step by step in the opposite direction until the opposite limiting position is reached, and means whereby said holder, upon each of its return movements, will actuate said platen to give it a single step creeping movement.

19. In a typewriting machine, in combination, a rotatable platen, a work-holder, means for feeding said work-holder past the printing line, controlling means for said platen comprising a ratchet-wheel, a detent therefor, and a link pivoted to said platen and to said ratchetwheel, whereby said-platen'will normally be held stationary, but, upon stepby-step actuation of said ratchet-wheel, said platen will be caused to creep step by step in one direction during a half rotation of the ratchet-wheel, and during the next half rotation thereof will be caused to creep in the opposite direction, and means whereby said ratchet-wheel will be actuated each time said work-holder is given a return movement from its finalto its initial position. 20. In a typewriting machine, a platen, a work-holder for advancing the work in a line-feed direction without moving the platen, and means for operating the workholder to line space the work and for causing the platen to creep after a plurality of linespacingmovements of the work-holder.

21. In a typewriting machine, a workholder, a platen, line-spacing means for causing the work-holder to line-space the work, mechanism for causing the platen to creep, and means normally in an inoperative position but movable,'by a plurality of opera.- tions of the line-spacing means, into'position to operate the platen-creeping mechanism.

22. In a typewriting machine, a platen normally stationary during feeding of the work, and work-feeding means normally operatively disconnected from the platen but movable into position to cause a creeping of the platen.

23. In a typewriting machine, in combination, work-feeding means, an operating handle connected to move the work-feeding means in opposite directions between fixed extreme positions, and means to compel the handle in its progress from one extreme po- 24. In a typewriting machine, a platen,

5 a lever, and means for transmitting movement of the lever to the move the platen in one movement of the lever,

platen arranged to direction upon a and to move the platen in the opposite direction upon a sub sequentimovement of the lever in the same 10 direction. v

BURN HAM C. STICKNEY. Witnesses:

CATHERINE A. N EWELL, JENNIE P. THORNE.

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