US2363661A - Carbon paper and its holder - Google Patents

Description

Nov. 28, 1944. -w. Ji FEITL CARBON PAPER AND ITS HOLDER --Filed May 12} 1944 INVENTOR.

Patented Nov. 28, 1944 UNITED STATES PATENT OFFICE cannon PAPER AND rrs nouma William J. Feitl, Chicago, Ill. Application May 12, 1944, Serial No. 535,219 4 Claims. (or. 282-19) The present invention pertains to certain features of. betterment and advancement in pigmented-sheets, such as carbon-paper sheets, and their holders employed in typewritlng a plurality of copies at the same time.

The making of a number of copies on a typewriter simultaneously is well known by the use of a corresponding plurality of sheets of carbonpaper interposed between the layers of paper being written upon and this invention is directed to certain improvements in the carbon-paper sheets so availed of and in their holders, as for example, those brought'into play between the layers of a fan-folded paper-supply sheet transversely perforated at intervals so that after having been typewritten upon a section can be torn off of the supply and then torn lengthwise at the' folds to provide the number of individual copies. One outstanding object of the invention is to reduce the expense of supply of such carbon-paper sheets and to lessen the costof using such sheets, by diminishing the portions of sheets which must unavoidably be wasted by non-use during their employment.

Another aim of the invention is to make such savings possible while at the same time evading complexity in the means employed, avoiding difficulty in the use of the new structure, and rendering replacements expeditiously possible, etc.

To enabl those acquainted with this art to understand the invention both from structural and functional standpoints, a present preferred embodiment of the invention in physical form has been illustrated in the accompanying drawing forming a part of this specification and to which reference should be had in connection with the following detailed description, like reference numerals having been employed in the several views of the drawing to designate the same parts of the construction.

In this drawing- Figure 1 is aperspective view of the novel holder of the carbon-paper with which it is loaded;

Figure 2 shows the holder opened up and the folded carbon-sheet partially expanded to illustrate its plaited construction;

Figure 3 portrays a portion of the carbon-paper sheet extended out of the holder for use between contiguous layers of the fan-folded paper to be typewritten upon;

Figure 4 depicts somewhat diagrammatically the long, folded, supply sheet to be typewritten upon, the intervening carbon-paper holders in dotted lines, and the mechanical means cooperating therewith; and

supply sheet to be typewrittenupon, clip I9 is Figure 5 is an enlarged cross-section on line other end a comparatively long cover flap 15 of a.

length to have a small end portion thereof accommodated beneath th holding-flap I, the intervening, rectangular, main body or back of the holder being designated l8.

Contained in this simple folded holder is a long, continuous sheet of carbon-paper II of approximately the same width as the holder, and folded crosswise at equal intervals apart at I8, I 8 to provide a plalted sheet all plies of which are of the same length and slightly shorter than the back It of the pasteboard holder.

The pigmented face of such folded sheet is the top surface of the top, 3rd, 5th, 7th, etc., ply and the under surfaces of the remaining alternate plies. When the holder is originally sold loaded with one of the plaited carbon-paper sheets, the forward edge of such folded, pigmented sheet is beneath the holding-flap I 4 and approximately at the fold l2 and the cover-flap i5 overlies the folded sheet l1 and the end portion of the coverflap is also beneath the holding-flap H, but above the carbon-paper, and these removable parts are thus held assembled by a spring-metal clip l9 underlying the back it and overlying the holding-flap H.

To get this combination ready for use between two plies of the longitudinally folded, paperremoved, the cover-flap l5 lifted and a suitable length of the carbon-paper I! lifted and advanced out of the holder as shown in Figure 3, then the cover-flap i5 is replaced beneath the holding-flap l4 beneath that portion of the then top layer of the carbon-paper still remaining beneath the flap, but on top of the next full. layer, and then the clip or clamp is replaced as shown in Figure 3.

In manifolding work of this kind, the typewriter-carriage (not shown) has movable with it a support equipped with a forwardly and rearwardly movable carrier on which the several carhon-paper sheets are mounted, but inasmuch as this is an old and wellknown structure and mode of operation, it has not been shown in detail and so much only thereof as is new is presented, a

portion of such carrier being designated 22 in Figures 4 and 5.

At opposite sides'of the paper-supply strip 2|,

' such carrier has hinge pins23, 23 on which are rockingly mounted flat, vertically-spaced arms 24, 24 extended inwardly in opposite directions between the plies of the fan-folded sheet 2|, each such arm occupy the space in One of the carhon-paper loaded holders between the fold. l3 and the adjacent folded edges l8 of the carbonpaper. Each hinged arm 24 is apertured to receive a locking-pin 25 whose lower end demountably occupies a corresponding hole in the base 26 of the carrier 22. Obviously, when either of the two pins 25 is lifted out, all of the arms 24 of that group'are released or unlocked and may be swung out individually from the folded paper-sheet 2| as illustrated in dotted lines in Figure 4 and the corresponding carbon-paper and its holder mounted thereon as specified, whereupon the arm is rocked back into place with the holder and its carbon-paper between the corresponding layers of the'paper 2| ready for service of that portionof the carbon-paper extended forwardly out of its holder.

When all such arms of that group have received theircarbon-paper, the arms are locked against turning by their common pin 25 until replacement of carbon-paper is required.

Asis well understood in the art, during the typewriting ofsuch paper 2| by means of the sheets advance step by step as the typewriterplaten is turned intermittently and when that portion of the multi-layer strip 2| has been completed, the platen is released, the carriage 22 recedes to the dotted line position shown in Figure 5 carrying the carbon-sheets and their holders with it, and the typewritten layers of sheet 2| are torn off and the operation then repeated.

Of course, in time the exposed or extended portions of the carbon-papers become worn out, and the used up portions only of the carbon-papers are torn or cut off and replaced by like lengths from the supplies in the holders, and when such new sections of the carbon-papers are of no further use, they are replaced in like manner.

ofl there is no waste of any unused section of the,

paper. Y

When, however, the last part of the pigmentedpaper is ofno further use, there is a slight length of the final end of the paper which is unavailable,

but such loss is negligible as compared with the a heavy losses by reason of waste incident to the employment of the present means and systems now available.

When new holders and their carbon-papers are needed the arms 24 are unlocked and swung out whereupon the old holders can be readily removed and replaced by new loaded ones, and then the arms are, rocked back into place and locked therein.

When new supplies of carbon-paper are required it is not always necessary to supply them in new holders, since the ones already in use can continue in service'over a considerable period of time, and hence only the transversely. folded or plaited carbon-paper need be pur-.

chased without the added expense of holders each time.

This invention as defined hereinafter is not necessarily limited and restricted to the precise and exact details of structure set forth and these may be modified within reasonable limits without departure from the heart and essence'of the invention and without the loss or sacrifice of any of its substantial benefits and advantages.

For example, one purpose of the cover-flap IS F is to overlie the folded carbon-paper sheet and thereby protect it frominjury or displacement, but it need not necessarily be of a length to extend beneath the holding or clamping flap I4.

I claim:

1. In a pigmented-sheet construction incorporating a holder and a folded pigmented-sheet in said holder, the novel improvements being that said holder includes a back, a, holding-flap oyerlying the front of, and hinged to, one end of said back, a cover-flap overlying the front of said back and hinged to the opposite end thereof, a continuous pigmented-sheet at least in part beneath said cover-flap and folded crosswise into plaited form, one end portion of such plaited pigmented-sheet being between said holdingflap and said back, and a clamp overlying said holding-flap and underlying said back releasably maintaining said plaited pigmented-sheet in the specified relation, whereby a section of said plaited pigmented-sheet may be released from beneath said holding-flap and occupy an advanced operative position, the remainder of the plaited-sheet being held clamped beneath said holding-flap.

2. The novel improvements set forth in claim 1 in which said cover-flap is of a length to have a portion of it clamped beneath said holdingflap.

3. The novel improvements set forth in claim 1 including the additional novel improvement that there is a space between the hinge of said cover-flap and the adjacent folds of said plaited pigmentedsheet.

4. The novel improvements set forth inclaim 1 in whichv said flaps are integral with the back WILLIAM J. FEITL.

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