US1368491A - Typewriting-machine - Google Patents

Description

J. DUCKSTINE.

TYPEWRITING MACHINE.

APPLICATION FILED JULY 10, 1918. 1,368,491. A Patented Feb. 15,1921.

2 SHEETS-SHEET J. DUCKSTINE. TYPEWRITING MACHINE. APPLICATION man JULY 10. ms.

Patented Feb. 15, 1921.

2 SHEETS-SHEET 2- IIIIIIII /n ven fan- 49% A ffar'ne JULIUS DUOKSTINE, OF NEW YORK.

Comm, 0! NEW YORK, N. Y.,

N. Y., ASSIGNOB TO UNDEBWOOD TYYEWRITEB A CORPORATION OF DELAWARE.

TYPEWRITING-HAOHINE.

Specification of Letters Patent. v

Patented Feb. 15, 1921.

Application filed July 10, 1918. Serial No. 244,285.

To all whom it may concern:

Be it known that I, J news Duons'rmn, a citizen of the United States, residing in New York, in the county of New York and States of New York, have invented certain new and useful Improvements in Typewriting-Machines, of which the following is a specification.

This invention relates to typewriting machines of the fan-fold type, wherein .work sheets comprisin plies of webs interleaved with sheets of car on are fed around a cylindrical platen in a manner illustrated and described in patent issued to Nernery and Smith, No. 1,132,055, dated March 16, 1915.

In said patent, the platen is swung upwardly to straighten out the plies of webs and carbons, so that the webs may be moved forwardly for gaging, and the carbons retracted into engagement with fresh portions of Webs, preparatory to typing of a succeeding. form.

An object of my invention is to simplify the construction and manipulation of the machine, and increase its usefulness.

I rovide upon the usual platen frame of the nderwood typewriter carriage a rack of superposed sheet-guides in the form of sheet-separators or aprons combined to form runways or chutes extending behind and under the platen. The work-sheets comprising plies of web and carbons are then alternately threaded between the guides at the receiving side of the platen, and fed under and around the platen to the printing point, so that each web and carbon will underlie a. guide except the innermost ply which is contiguous to the platen. The typing of the forms ma then take place.

After the forms have been fed around the platen by theline-spacing mechanism and feed rolls, the feed rolls are released, and the carbons are retracted to their normal positions into engagement with fresh portions of the webs, by moving rearwardly the carbon-shifter to which the carbons are attached. Said guides separate the carbons and the webs from one another, thereby serving as anti-friction agencies to prevent binding, and to permit retraction of the carbons even though the platen frame remains in its normal position. The carbons slip back easily over their smooth metal guides, without being retarded by the webs,

which they do not touch at this portion of their travel.

A soon as the carbons are retracted, the leading edges of the webs may be drawn forwardly through the guides to a gage to br ng a succeeding form to the printing point. During this movement of the webs, the carbons may remain stationary.

During the typing of a set of forms, the effective grip by which the work-sheets are fed about the platen is confined to the relatively small area of friction contact in the vicinity of the feed-rolls, which are located forward of and above the delivery ends of the paper runways, and are here shown just above the printing line of the types with respect to the platen. All mutual surface contact between the work-sheets as they are deflected about the platen by the anti-friction runways is prevented by the separators, so that each sheet is free to move to the vicinity of the printing line independently of the others, thus avoiding objectionable creeping or over-feeding of an outer sheet by an inner sheet.

Typing may proceed in both upper and lower case positions of the platen. since said guides are mounted on the usual Underwo od platen frame and are shiftable with the platen at the actuation of the usual Underwood case-shift key.

In machines of the \Vernery and Smith type, the carbon-shifter reciprocates along rails on a. rear extension of the typewriter carriage. When using the herein disclosed web and carbon guides, a shorter rear extension of said carriage ma be employed than heretofore, since the car ons do not need to be retracted so far. This permits reduction in the dimensions and weight of the machine.

Other features and inafter appear.

In the accompanying drawings.

Figure 1 is a fragmentary side sectional elevation. showing the carbons in a retracted advantages will hereposition and the parts in normal writing position.

Fig. 2 is a sectional side platen, and guides for guiding carbons thereunder.

F ig. 3 is a front sectional view 0 f the guides and platen, an arrangement being shown for use with separate webs.

view of the the webs and arating the webs 16 Fig. 4 is a vieiv similar to Fig. 3. showing the arrangement for use with fa n-fold webs, a guide being provided for each ply of web and for each carbon.

Fig. 5 is a view similar to Fig. I}, showing the arrangement for a fan-fold web. a guide being provided for each carbon and an overlying ply of web.

Webs 1U having forms repeatedly printed thereon a re led from a source of supply (not shown) over a carbon-carrier or shifter 11. Fig. 1. and passed between blades 12 thereof to which are fastened sheets of carbon 13. so t iat said sheets of carbon will be interleaved letween the plies of webs 16. The leading edges 14 of said webs are then threaded over and into a set of guides 15 in the form of paper-aprons. and are thereby guided under a cylindrical platen l6 and over the printing point and under feed-rolls 17. which are in released position during the web-im serting operation. the front roll 17 being broken away in Fig. 1 to show part of a roll 17 to the rear thereof.

The feed-rolls 17 are then moved to effective position. and typing of the forms proceeded with. a line-spacing.mechanism 18. indicated in general in Fig. l. being provided to feed the webs 10 and carbons 13 through the. guides 15 and around the platen 16.

The platen and feed-rolls are revolubly mounted on a platen frame 19, Figs. 1, 3. 4 and 5, shiftable on the usual Fnderwood typewriter carriage 20; and the guides 15 are fast on said frame 19 and are shiftable therewith.

After the typing of a form is completed, the feed-rolls 14 are moved to ineffective position, and the carbon-carrier '11 shifted rearwardly to normal position. Fig. 1. to retract the carbons 13 into engagement with fresh portions or forms of the webs 1U. 'hen the carbon-shifter 11 is in its rearmost position, the webs 10 are manually drawn forwardly over a paper-table 26, Fig. 1, fast on the platen frame 19. to bring the leading edges H to a gage 27 so as to move a fresh portion of web 10 to the printing point, after which the typed form may be torn off from the webs and the operations repeated for each succeeding form.

To prevent binding of the webs 10 and carbons 13. each on all of the others, in a carbon-retraeting operation or in a wel gaging operation. without displacing the platen 16 for this purpose. the webs and carbons are separated under the platen by the guides 15 to avoid frictional contact be tween said webs and carbons as they pass around the platen and in the rear thereof.

For this purpose. the guides 15 for sepand carbons 13 extend over the entire length of the platen 16, Fig.

3. and under and behind said platen, Figs. 1 and 2. Said guides 15 are approximately ogee-foriii. are superposed and co-extensive, converging toward their forward or delivery ends 31. Fig. 2, and diverging toward their rear or receiving ends 32. so as to afford a greater space between said guides at the receiving ends to facilitate the insertion of the plies of webs and carbons.

To economize space and to enable the guiding devices to be applied to existing machines, the guides 15 are in closer proximity as they approach and pass around the platen 16.

The extreme forward ends 31 of said guides converge toward the printing point 34 of said platen. and the rear ends 32 are curved toward the carlmn-shifter 11, so that said webs and carbons will travel in an even line from said shifter 11 to the printing point 34 at which they contact.

To avoid injury to the carbons 13 in retracting and line-feeding operations, the ends 32. 33 of the guides 15 are rounded, Fig. 2. and the portions of said guides, which contact with the carbons and webs, may be highly polished.

'hen separate webs are employed. the guides 15 may be supported at each end by side plates -10, ig. 3, fast on the platen frame 19. 'hen fan-fold webs 11 are employed. Figs. 4 and 5. the guides preferably do not extend the entire length of the platen, and may be supported only at one end alter nately on said side plates 16.

A guide 15 mav be provided for each ply of web and for each sheet of carbon; but when it is desired to use an increased num ber of plies of webs, a sheet of carbon and a superposed ply of web may pass between any two adjacent guides 15, Fig. 5. permit ting the use of more plies with the same number of guides. By the same means. the amount of space occupied by the necessary number of guides may be reduced by reducing the number of guides for a given munber of webs.

lVhen fan-fold webs 41 are used, and a guide 15 is provided for each ply and for each carbon, the guides may extend across the platen 16 alternately in pairs from each of the side plates 40, the free ends of each pair being joined by auxiliary side plates 12, as seen in Fig. 4, thereby aiding in the support of said guides.

When fan-fold webs 411 are used with a guide 15 for each carbon and a ply of superposed web. said guides may extend singly and alternately from each side plate 40, said guides being sufficiently curved to resist strain. so that a support -10 at one end thereof will be sufficient. It will be noted that the guides 15. Figs. 4 and 5, for use with fan-fold webs 41 may also be used for separate sheets of webs 10 in the same manner as the guides 15 Fig. 3, which extend from one side plate 40 to the other.

It will be noted that when fan-fold webs are used, a lesser divergence of the guides at their rear may be employed so that the plies will not be excessively separated at their joining or side edges.

The machine is adapted to write upper and lower-case characters, the type-bars 45, Figs. 1 and 2, being provided with upper and lower-case type 46, 47, respectively. The platen frame 19 is connected with the usual Underwood case-shift mechanism 48, Fig. 1, for raising and lowering the platen 16, together with the guides 15.

To operate the feed-rolls 17 which cooperate with the platen 16 to line-feed the webs 10, 41, said feed-rolls are mounted on arms 55, Fig. 1, fast on a rock shaft 56, which is journaled in the platen frame 19 and has a handle 57 whereby said feed-rolls 17 may be moved into and out of engagement with the webs. A spring 58 is pro vided for holding said feed-rolls against the laten and away from the platen; a stop 59 eing provided on the platen frame 19 to limit the outward movement of said feedrolls.

It will be noted that since the platen 16 remains in normal position during a carbonretraoting and web-gaging operation, the sheets of carbon 13 and webs 10, 41, need not be straightened out when the carbon-shifter 11 is moved rearwardly to its starting point, thereby enabling the use of shorter rails (30, on which said carbon-shifter travels. than would be required in case the carbons and webs were straightened for carbon-retraction and the shifter moved back beyond the starting point. lVith this construction, the rear extension 61 of the t pewriter carriage 20 may be considerably shorter, thereby reducing the dimensions of the carriage and the supporting means for said carriage. A lighter and smalllcr structure is thereby attained.

A condensed record sheet 62, Fig. 2, adjacent the platen 16 may be used in connection with the webs 10, 41. It will be noted that since the 'platen is in normal position in a carbon-retracting and web-gaging operation, the natural retraction of said record sheet 62, which takes place at the return to normal position of a displaceable platen, such as used in said patent, is herein avoided by the use of said guides 15. in addition. a guide 15 separates the superposed carbon sheet 13 from said condensed record sheet 62, and avoids any tendenc of the carbon sheet to retract the record sheet. due to friction therebetween.

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

cooperating Having thus described my invention, I claim:

1. In a typewriting machine, nation with a cylindrical platen, of carbonretracting means, and means for guiding and feeding work-sheets and carbons. controlled by said carbon-rctracting. means to and about the platen. said guiding means comprising spaced separators forming anti friction runways for deflected portions 0 the work-sheets.

2. In a typewriting machine, the combination with a cylindrical platen, of means with said platen to enable the same to feed work-sheets thercabout without creeping, said means including superposed spaced separators having portions curved to conform with the surface of said platen, so as to provide separate anti-friction runways for deflected portions of the work-sheets.

3. In a typewriting machine. the combination with a platen, of means to guide superposed work-sheets to the printing line, said guiding means comprising spaced separators forming anti-friction runways. and feeding means for said work-sheets gripping rthe parts thereof which have been carried past the printing line.

4. In a typewriting machine, the combination with a cylindrical platen, of means for guiding and feeding work-sheets to and about the same, said guiding means comprising a plurality of superposed separators. each of which is reversely curved. forming individual paper runways for said worksheets to deflect them in their paths about said platen, while maintaining them free from mutual surface contact so that one may be moved independently of the other.

the combi- 5. In a typewriting machine. the colnbinn tion with a cylindrical platen. of means for guiding and feeding work-slimts to and about the same, said guiding means compris ing a pluralit of superposed separators forming antiriction paper runways for said sheets, said separators having portions curved in conformity with said platen and closely nested thcreabout. and other portions diverging from said closely related portions to provide entrance openings of ample dimensions to facilitate the feedingof the work-sheets between the separators into said runways,

6. In a typewriting machine. in combination, a platen, case-shift mechanism therefor including means for shifting said platen from one case-position to another, means for guiding and feeding work-sheets and interleaved carbons to and about said platen, said guiding means comprising spaced separators forming anti-friction runways for deflected portions of the work-sheets. said separators being mounted in fixed relation with the platen mounting so as to bc shifted therewith, and carbons.

T. In a typewritingmachine,the combination with a platen, of means for guiding and feeding work-sheets and interleaved carbonsheets to the printing line, said means including a separator between the sheets of each pair of adjacent sheets to enable free relative movement thereof, and carbon-sheet retracting means.

8. In a typewriting machine, the combination with a cylindrical platen, of means for guiding and feeding work-sheets to and about the same, said guiding means comprising superposed spaced separators forming anti-friction runways for portions of the work-sheets deflected in curved paths about the platen, each of said separators being extended beyond its next inner neighbor at its forward edge and turned slightly toward the platen so as to deflect the work-sheets to bring them into close relation at the delivery ends of the runways.

9. In a typewriting machine, the combination with a c lindrical platen, of means for guiding an feeding work-sheets comprising webs of forms and interleaved carbons to and about said platen, said guiding means comprising spaced separators forming anti-friction runways, one for each web section, and one for each carbon, the innermost runway being formed by the innermost separator and the adjacent surface of said, platen. said runways providing means whereby the web sections and carbons may be independently moved while in the curved paths about said platen.

10. In a typewriting machine, the combination with a cylindrical platen, of means for guiding and feeding work-sheets comprising webs of forms and interleaved carbons to and about said platen, said guiding means comprising spaced separators having portions curved to conform with the surface of said platen, so as to provide separate antifriction runways for deflected portions of the worksheets, one for each web section, and one for each carbon.

11. In a typewriting machine, in combination, a clylindrical platen, a letter-spacing carriage tierefor, means mounted in said carriage for guiding and feeding worksheets comprising webs of forms and interleaved carbons to and about said platen, and a carbon-adjusting device movably mounted in said carriage, said guiding means comprising spaced separators forming antifriction runways for deflected portions of said work-sheets, whereby the carbons may be freely retracted relatively to said web sections by said carbon-adjustin device, while said work-sheets are maintained in their curved paths about said platen.

12. In a typewriting machine, in combination, a cylindrical platen, a letter-spacing means for retracting said carriage therefor, means mounted in said carriage for guiding and feeding worksheets comprising webs of forms and an interleaved carbon'to and about said platen, and a carbon-adjusting device movably mounted in said carriage, said guiding means including a sheet deflector to maintain a separated relation between a sheet and the carbon efi'ective thereon, as they are deflected through a curved path about said platen, so that said carbon may be freely retracted by said carbon-adjusting device while said sheets are maintained in their curved paths about said platen.

In a typewritin machine, in combination, a c lindrical pIaten, a letter-spacin carriage t erefor, means mounted in sai carriage for guidin and feeding worksheets comprising we s of forms and interleaved carbons to and about said platen, and a carbon-adjusting device movably mounted in said carriage, said guiding means comprising superposed spaced separators forming anti-friction runways having portions curved in conformity with the surface of said platen, and ot er portions reversely curved to provide entrance openings directed toward the carbon-adjusting device, so that web-sheets and carbons fed from the carbonedjusting device to said runways will be tangent to the separators at the points of entrance.

14. In a typewriting machine, in combination, a platen, means for feeding worksheets to and about said platen and beyond the printing line, said feeding means comprising means for establishing a feeding grip between said platen and said sheets in the printing line, and anti friction guiding means to deflect said sheets about said platen to the vicinity of the printing line while permitting free movement of one sheet relatively to another, thus preventirig creeping by the over-feeding of one sheet by another.

15. n a typewriting machine, in combination, a platen, means for feeding worksheets to and about said platen and beyond the printing line, said feedin means comprising feed-rolls for establishing a feeding grip between said platen and said sheets above the printing line, and anti-friction paper runways to deflect said sheets about said platen to the vicinity of said printing line while permitting free movement of one the vicinity of sheet relatively to another, thus preventing a creeping by the over-feeding 0 one sheet by another.

16. In a typewriting machine, the combination with a cylindrical platen, of means for guiding and feeding work-sheets to and about the same, said guiding means comprising spaced separators forming anti-friction runways for deflected portions of the worksheets, and end supports for mounting said separators in fixed relation with res ct to I the axis of said platen, one of sai separaters being one being attached attached to one support, and

to the other, the width orted by a single supe distance between the machine, the combination with a cylindrical platen, of means for guiding and feeding about the same, said ing spaced work-sheets to and guidimn. means cornprisse arators vforming anti-friction runways for eflected portions of the worksheets, and and supports for mounting said separators in fixe relation with res eot to 15 the axis of said platen, certain of sai separators being grouped in pairs, of whlch alternate pairs are attached to opposite end supports, the paired separators hem of less width than e distance between t e sup- 20 ports.

JULIUS DUCKSTINE.

Witnesses:

.CATHERINE A. NEWELL, Eorra B. LIBBEY.

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