US2121499A - Carbon holding device - Google Patents

Description

J. E. EUTH CARBON HOLDING DEVICE Filed Jan. 9, 1957 June 21, 1938.

2 Sheets-Sheet 1 June 2l, 1938. J. E. EUTH CARBON HOLDING DEVICE 2 Sheets-Sheet 2 Filed Jan. 9, 1937 Patented June 21, 1938 a I UNITED STATES PATENT IOFFIQE CARBON HOLDING DEVICE John E. Euth, Chicago, 111., assignor to United Autographic Register 00., a corporation of Illinois Application January 9, 1937, Serial No. 119,852

10 Claims. (Cl. 282-29) This invention relates to a carbon holderfor sandpaper of a comparatively fine grade, 2/0 use in a typewriterprovided with a cylindrical grade being satisfactory. As shown in Figs. 2 platen, and more particularly to an improved an and 5, the front marginal edge of the paper may choring tail for automatically holding transfer have a V notch, as indicated at Ill, to lessen the 5 slipsor carbori slips during a stripping operation chance of the edge catching on lines of weaken- 5 in which the carbons are interleaved with a sucing usually provided between sets of forms ll ceeding set of forms. i on continuous-form stationery [2.

The primary object of the invention is to pro- The carbon transfer strips B may be ordinary vide an improved carbon holding device having carbon paper of substantially the same width as means for automatically engaging the platen continuous stationery strips 12. The slips, pref- 10 frictionally to hold the carbons while the staerably are arranged in pp d e ation, as intionery is free to advance, dicated in Figs. 3-5, inclusive, and their rear A further object of the invention is to provide edge portions folded around and Permanently an improved carbon holding device in which the secured to the tail A, by m a s of t ansverse 5 carbons and anchoring tail are of substantially gummed p p r strips B, the ends of the latter the same width as the stationery. being secured to the tail A. Preferably, the end A further object of the invention is to provide p ti ns of t st p are v d with a carbon holding tail having stationery guides mm tabs i3 (s o It may he noted means at both its front and rear edge portions. at the fastehihgs held the Carbon S p B 2 Another object of the invention is to provide in a manner a permits the Stationery Strips rear guide-means for the stationery which may ii to be threaded between the same and the be detached from the anchoring tail after the S ps Se ve to hold the carbons in lateral carbons are worn out. alignment with the stationery.

The invention is illustrated in a preferred em- The preferred aligning ans C, for the rear bodiment in the accompanying drawings in of the anchoring tail, is shown in Figs. 1-3 and 25 comprises a flat cross-bar l4 and a companion Fig. 1 is a side elevational view, partly in secparallel eressebal l5 Which m y b of double tion and somewhat diagrammatic, showing how thickness Provide additional rigidity- T the stationery and interleaved carbonsare fed ends O the Cress-bars are joined y i r ly between a platen roll and presser rolls which are formed ehd bars Which preferably (1 5- standard equipment on most machines; Fig. 2, posed at right angles o e p e of t e bars a broken plan view showing a preferred form of M 15, 80 as to provide lateral aligning the carbon holding device as used in connection sllrface- The device is secured to the Feel of the with continuous stationery strips; Fig. 3, a fra a A by doubling back the rear 'g r mentary plan view similar to Fig. 2 but taken H over the cross'bar M and i h 5 from the opposite side; Fig. 4, an enlarged fragoverlap by means of U'Shaped sprmg chps C mentary perspective view showing how the car.- Z i m g afteg a Sgt of carbqns bon slips are fastened to the anchoring tail; Fig. fi econte ey may 6 dl-sca-rded t e anchoring tall, but the rear ahgmng device 5, a broken sectional view, taken as indicated at may be Salvage-d and applied to a new assembly 40 5 3f gi g-g fg i gf g l fg g ig' The holding device is easily installed by 1 rear 1 eans e threading all of the strips through a slot l8 anch rin ta l; a a m n a y p a s provided between the bars l4 and I5 and threadme an th m difi d m o a id ns; ing them into interleaved relation with the car- F a fragmentary p n V Showing a the bon slips. This operation is facilitated by the modified form of rear gu d -mea s; a d Fi stepped arrangement of the rear edges of the a sectional view, taken as indicated at line 9 of carbons. The assembly is then introd d Fig. 8. tween a platen roll I9, which usually has a soft In the preferred embodiment illustrated in rubber surface 20, and presser rolls 2| so that Figs. 1-5, A designates a tail-like web which the advanced loaded set of forms may be typed serves as an anc i d vi a b n slips in the usual manner. At the completion of the which are secured to the tail A, by means of writing operation, the forms will reach the posifastening means B; and C, rear guide-means tion shown in Fig. 1 and the presser rolls 2| may which may be detachably secured to the rear of be thrown out of engagement with the stationthe anchoring tail by means of metal clips C. ery. The operator then grasps the ends of the The anchoring tail may be made of ordinary strips 12 and draws them upwardly at an angle 55 that will press a suflicient arc of the frictional tail against the platen to bind it against forward movement and permit the interleaved stationery to slip therearound. When the completed set of forms are clear of the carbons, they may be detached and the assembly is ready to be backed into writing position by means of the platen roll and presser mechanism, as will be readily understood.

In the modification shown in Fig. 6, the rear edge of the anchoring strip 22 is doubled over to form a pleat 23 which may be held by staples 24. A metal bail 25 may then have its front ends introduced into the ends of the pleat 23 by bending the central portion of the pleat 23.

In the modification shown in Fig. 7, a metal insert 26 is mounted in a window 21 provided in the rear of an anchoring tail 28. The metal frame thus formed serves as an aligning slot for the stationery.

In the modification shown in Figs. 8 and 9, a flat metal bar 29 has its end portions turned upwardly and inwardly over the anchoring tall 30, as indicated at 3|, and is gripped in position by means of metal clips 32.

It may be noted that in the forms shown in Figs. 3, 7 and 8, the metal aligning means serves to hold the rear edge portion of the anchoring tail in lateral extended position. In all forms except Fig. '7, practically the entire holding device is disposed within the lateral boundaries of the stationery strips.

While sandpaper is preferred for use as an anchoring tail, other stiff papers may be used provided with a suitable frictional face. For example, it has been found that a thin sheet of rubber may be pasted to the top face of the tail and it will operate satisfactorily.

The foregoing detailed description has been given for clearness of understanding only, and no unnecessary limitations should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of the prior art.

I claim:

1. A manifolding device, for use in a typewriter having a cylindrical platen around which continuous stationery strips may be led, comprising: a flexible tail-like web to which is attached a plurality of carbon slips interleaved with said stationery, said web having a face of frictional material adapted to engage said platen so as to restrain advance of the carbons while the stationery is stripped therethrough.

2. A manifolding device, for use in a typewriter having a cylindrical platen roll, comprising: a flexible tail member having a frictional face adapted to engage said platen roll and automatically restrain circumferential movement with respect to the roll while stationery is drawn therearound; a series of carbon slips connected to front marginal portions of said tail member; and guide-means at the rear of the tail member adapted to engage stationery interleaved with the carbons and hold the same in lateral alignment.

3. A device as specified in claim 2, in which the guide-means comprises a metal cross-bar secured to the tail member so as to hold said member laterally extended and form a passageway for the stationery strips.

4. A device as specified in claim 2, in which the guide-means comprises an elongated metallic frame removably secured to the tail member so as to hold the tail laterally extended and form a guide slot for the stationery.

5. A device as specified in claim 2, in which the guide-means comprises an elongated metallic frame removably secured to the tail member so as to hold the tail laterally extended and form a guide slot for the stationery, said frame having a pair of flat parallel cross-bars connected at their ends by fiat end-bars disposed substantially perpendicular to the plane of the cross-bars.

6. A device as specified in claim 2, in which the rear end of the tail member is doubled back on itself to form a pleat, and the guide means comprises a bail having ends adapted to be inserted in opposite ends of said pleat.

7. In a typewriter having a cylindrical platen and presser rolls for feeding a plurality of long strips of stationery through writing position, a carbon holding device comprising: a tail member, of the same width as the stationery strips, having a frictional face presented towards the platen and adapted to prevent circumferential movement with respect thereto when said presser rolls are released; guide-means at the rear of said tail for holding the stationery strips in lateral alignment and in juxtaposition to said tail; carbon slips interleaved with the strips; and fastenings for said carbon slips for securing their rear end portions to the front lateral edge portions of the tail, said fastenings forming lateral guides for the stationery at the front of said tail.

8. A device as specified in claim 7, in which the tail member is made of sandpaper.

9. A device as specified in claim '7, in which the tail member is made of sandpaper and has at its front marginal edge portion a V-shaped notch to avoid catching on lines of weakening provided in the stationery strips.

10. A device as specified in claim 7, in which the fastenings for the carbons comprise transverse strips of gummed tape, around which the carbons are folded, said carbons being arranged in stepped relation.

JOHN E. EUTI-I.

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