US1007581A - Attachment for type-writers. - Google Patents

Description

E. Z. LEWIS ATTAOHMENT FOP TYPE WRITERS.

APPLICATION FILED DEG.'12, 191-9.

Patented 01111311911.

4 SHEETSSHEET 1.

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ATTACHMENT FOR- TYPE WRITERS.

APPLICATION FILED DEC. 12, I910.

Patented Oct. 31, 1911.

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ZZZ/8721513 EdwardZ-Lewz'a E. Z. LEWIS.

ATTACHMENT FOR TYPE WRITERS.

APPLICATION FILED DBG.12,1910.

Patented Oct. 31, 191

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specification of Letters Patent.

' Application filed December f2, 1910. Serial No. 596,92 2.

Type-Writers; and I do hereby declare that I the followingis a full, clear, and exact description'thereof, reference being had to the-- accompanying drawings, and to the letters; of reference marked thereon, which form a part 'of this specification;

, This invention re'latesto an attachment for typewriters and consists of a novel and pro'ved construction adapted for making manifold copies.

The attachment is particularly intended for making manifold "copies ,on forms printed on a sheet folded lengthwise and comprising superposed sections, each section having'a plurality of forms arranged veras to lie above and register with an associated form on'the other section. The manifolding sheet'shown" herein has its folded edge slit from its bottom edge to a point near its top in order that the two sections of the sheet will" wind smoothly about the platen 'as described in an application filed by me October 21,1910, Serial No. 588,306.

The invention relates to the same type of attachment for typw-riting machines as that described in Letters-Patent No. 940,336

granted to me on November 16th, 1909, and consists of certain novel features hereinafter described and. more particularly pointed out in the appended claims.

In the drawings :'-F 'gure 1 is a perspective tviewof my improved attachment for typwriting. machines.- Fig. 2 is a vertical sect-ion through the same. Fig. 3is a transverse section throughtlie attachment on the line 3 -3 of Fig. 2'. Fig. 4 is a longitudinal section on an'enlargcr. scale through one of the rolls towhich the carbon ribbons are. attached. Fig. 5 is a transverse section on an enlarged scale through the platen, illustrating the manner in which the carbon rib-- bons and the manifolding sheet are together wound about the platen. Fig. 6 isga vertical section similar to that shown in Fig. 2, illus trating a slightly modified form of the in vention. p

I have illustrated my attachment ia's apz; Lewis, a Y

' but it will be apparent that may be at plied to other machines and I do not there:

1 machine.

invention the other parts of the haveb'een omitted. p Y

10 indicates the paper-carriage'which maj be of any usual or convenient construction. In this instance, it comprises a rectangular frame having front and " rear bars 10, 10 and end bars T10 10! 1O indicates the platen; 11 11 indicate upright brackets rigidly secured to the paper-carriage frame 10.

secured by screws to the bars of said frame. The one bracket 11? is braced by a cross bar 11, while the other bracket 11 is open so" of the manifolding sheet. v

.12 and'13 indicate spring controlled rolls 1 which arerotatively mounted in the brackets 11", l-lY. Upon said rolls arewound' the ends of a carbon ribbon 14 which passes from the spring roll 13 down about asmall roll or rod 15', mounted in the surface of 'the platen 10, while its other end extends u to and is wound about the spring controlle roll 12.

. which is wound on the roll 13, and 14?, the end of the ribbon wound about. theroll 1.2.

-The rod or M1115 is mountedin a groove 15 cut in the face of the platen. Said rod' is hinged at one end to a block I5 so as to be capable of swinging outwardly away the ribbon about it when said ribbon is first placed in position on the machine, ,and'when v swung intothe groove 15 lies with the outer part of its eripher flush with the'face of the platen, eing he d in this closed. position its free -end. e p

The front-members of the brackets are bracedeap'art by a bar 17 which is rigidly seouredto said brackets at its ends. To said bar are attached- guide plates 18,18 which depend above the endof the carbon ribbon when the platen is. rotated backward to unroll the manifolding sheet and-ribbons? from plied to a machine of the Remington 'typei 'thel platen. The rear members of f tli fore my invention. to this form of fj'ao My lmprovedattachment 1s applied to the paperrcarriage frame and in illustrating the I ma hin Said brackets have base plates 11 which are as to leave plenty of room for the insertion tically one above the other on the section 4 with the forms of one section so arranged 1 1 indicates the end of the carbon-ribbon by a catch 15 adapted for engagement with;

and are. adapted to prevent the section of the manifolding sheet contact therewith from following said end 14* of ,the ribbon 1 Patented oat--31, 1911;,

from the platenfor convenience in. passing of the brackets 11 11 movably connected by clips 25, to the platen at the rear of the small roll 15.

To place the manifolding sheet in the typewriter attachment its folded edge is grasped by the right hand and the sections of the folded sheetare inserted top down, with the top section to the rear of the ribbon section let and withits bottom section in frontof said ribbon section, as clearly inclicated in dotted lines in Fig. 1. The top of the folded sheet is brought into engagement with the platen which is then rotated to wind the sections of the manifolding sheet and the sections of the ribbon together on the platen, shown in Fig. 5. At the same time the tapes 2-4., 24 are wound with the sections of the ribbon a id with the manifolding sheet, said tapes engaging the longitudinal margins of the sheet and forming the outer layer. Said tapes hold the manifolding sheet and prcyent it from becoming distorted. After the outermost form has been printed by the typewriter in the usual way the platen is released and, under the spring action of-the rolls 13, 12 and 21, the ribbon sections and the tapes are unwound from the platen and rewound on their respective rolls. This movement withdraws the manifolding sheet from the platen and brings it substantially into the first position, as indicated in Figs. 1 and 2, whereupon it may be removed and replaced by another manifolding sheet. During this unwinding movement, the sections of the manifold-mg sheet are disengaged from the ribbon sec tions by the guide plates 18, 18 and 20, 21).

In the preferred form of my improved attachment, the spring controlled rolls 12 and y 13 are each constructed and supported follows: Each roll comprises a barrel 30, having a cap 31 rigidly secured to it at one end; a rod 32 rotatively mounted in said barrel and provided with a collar 32 adapted to close the other end of the barrel; and a long coiled spring 33 which is coiled about said rod 32 and. has an end 33*"- connected to the rod and an end connected to the barrel. The cap 31 has a stud 31 which engages rotatively within an aperture 31 in the bracket 11", while the collar 32 has 'an angular stud 32* which engages nonrotatively within a notched lug 32 on the bracket 11. The barrel 30 is thus mounted in the manner of a shade-roll.

The ribbon 1d has its ends 14 and. 14 wound respectively about tubes 34, 34 of pasteboaril or the like material. Each tube removable collar 35 located near one end of the barrel and a fixed lug 36 located near the other end, said collar and lug engaging the serrations of the pasteboard tube 34: and rigidly holding it against rotation on the barrel, The collar 35 is held in place by a set-screw. 35 By reason of this construction, the ribbon, with its ends wrapped or wound upon the two pasteboard tubes, may be sold separately from the attachment for renewals, and after removing the rolls 12 and 13 from the brackets 11? and 11*, and loosening the set-screws 35 and removing the collars 35, the tubes 3 1 of the old'ribbon may be drawn off the barrels 30 and the like tubes of a new ribbon placed thereon.

Any convenient line-space mechanism may be used in connection with. the platen. In the drawings, the platen is shown as provided with a back ratchet-wheel 40 and with a grav t controlled pawl 41. which engages said ratchet and thus locks the platen against back rotation under the action of the spring controlled rolls 19., 13, and 21. Said. pawl 1s :ulapted to be released. from its engagement with the ratchet by a link. lr2,.pii'otali.y connected at one end to the pawl and at its other end to a rock-arm which is actuated by a rock-shaft 4i rotatively mounted on the paper carriage frame 10. Said rock shaft operated by a finger-arm After the original, outer form of the ma'nifolding sheet has been written, the finger-arm 15 is swung to withdraw the pawl 4E1 from engagement with the ratchet 4-0 and held in that position, until the ribbon sections and tapes under the action of their respective spring controlled rolls have returned to their initial position.

, In Fig. 6 I have shown a modification in which the attachment is prori gled with a plurality of ribbons, in this j-asc two, 50 and :51, each having, respectirely, ends or sections 50", 30 and 51 51*, which are wound about spring controlled rolls 50, 50 and 51,

51. Said. rolls are mounted in the brackets 11, 11 as before and the ribbons are looped about the rod 15 on the platen, one below the other. By this construction the number of copies possible may be largely increased.

v In all cases the coiled springs .in the spring-cmtrolled rolls upon which the ribbons are wound are made quite long so as to produce the required tension without materially increasing said tension when the rib bon is nearly or completely unwound from its roll. In order to change the ribbon to brm g a new part under the type'it 1S simply necessary to wind up one roll or the otherwhich immediately shifts the ribbon. The

friction of the ribbon against the rod 15 will spaced spring controlled rolls with their central. axes parallel to said platen rotativelymounted ata distance from said platen, and a ribbon looped about said rod and having its ends wound upon said sprlng controlled rolls.

2. In a typewriter, in combination with a platen provided with a longitudinal groove in its face, and a rod mounted therein, spaced spring controlled rolls with their central axes parallel to said platen rotatively mounted at a distance from said platen, a ribbon looped about said rod and having its ends wound upon said spring controlled rolls, a third spring controlled roll with its axis parallel to that of the platen, located at the rear of the first mentioned rolls, and marginal tapes spaced longitudinally on said third roll and wound thereon and having their free ends secured to said platen surface back of saidrod.

3. In a. typewriter, in combination with a paper-carriage embracing a frame and a platen rotatively mounted thereon, upright brackets secured to said frame, spring controlled rolls rotatively mounted in said .bracketsabove said platen with their axes of rotation parallel to that of said platen,'

said rolls being spaced from each other, a ribbon having its ends wound upon said rolls, and means for attaching a partof said ribbon intermediate its ends to the surface of said platen.

4." In a typewriter, in combination with a paper-carriage embracing a frame and a platen rotativ'ely mounted thereon, upright brackets secured to said frame, spring con trolled rolls rotatively mounted in said brackets above said platen with their axes of rotation parallel to that of said platen,

said rolls being spaced from each other, a ribbon having its ends wound upon said rolls, a rod mounted in the surface of said platen, said ribbcin having its ends wound upon said spring controlled rolls and being looped about said rod intermediate its ends, and a third spring controlled roll rotatively mounted in said brackets at the rear of the platen, provided with longitudinally spaced tapes wound thereon and connected at their forward ends to the platen at the rear of.

said rod.

5. In a typewriter, in combination with a paper-carriage embracing a frame and a platen rotatively mounted thereon, upright brackets secured to said frame, spring controlled rolls rotativelymounted in said.

brackets above said platen with their axes of rotation parallel to that of said platen, said rolls being spaced from each other, a rod mounted in the surface of said platen, a ribbon having its ends wound upon said spring controlled rolls and being looped about said rod intermediate its ends, and a spring controlled shaft rotatively mounted in said brackets at the rear of the platen, spools rigid with said shaft and spaced longitudinally thereon, and tapes wound on said spools and'connected at their forward ends to the platen at the rear of said rod.

6. In a typewriter, in combination with a paper carriage embracing a frame and a platen rotatively mounted thereon, uprightv brackets secured to said frame, spring con trolled rolls rotatively mounted in said brackets above said platen with their axes of rotation parallel to that of said platen, said rolls being spaced from each other, a ribbon having its ends wound upon said rolls, means for attaching a part of said ribbon intermediate its ends to the surface of said platen, and guide plates supported by said brackets and extending toward said ribbon.

7. In a typewriter, in combination with a paper carriage embracing a frame and a platen rotatively mounted thereon, said platen being provided with a longitudinal groove in its face, and a rod mounted therein, spaced spring controlled rolls with their central axes parallel to said platen rotatively mounted at a distance from said platen, and a ribbon looped about said rod and having its ends wound upon said spring controlled rolls, said spring controlled rolls each embracing removable spring tension barrels, endwise movable tubes located on said barrels, and means for locking saidtubes-nonrotatively on said barrels, said ribbon ends rality of spaced springcontrolled rolls with their central axes parallel to said platen rotatively mounted at a distance from said platen, sa1d rolls being arranged'm pairs,

.and a plurality of ribbons, each ribbon being looped about said rod and having its ends each wound upon one of a pair of said rolls.

In testimony, that I claim the foregoing as my invention I afiix my signature in the presence'of two witnesses, this 14th day of November A. D. 1910. i i

- EDWARD Z. LEWIS.

Witnesses: 1

Greece R. WILKINs, T. H. ALI-REDS.

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