US680637A - Manifolding-sheet. - Google Patents

Description

No. 680,637. Patented Aug. :3, mm.

H. P. BROWN.

MANIFOLDIN G SHEET.

(Application filed. May 17, 1899 (No Model.)

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UNITED STATES.

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MANlFb-LDlNG-SHEET;

SPECIFICATION forming part of Letters Patent No. 680,637, dated August 13, 1901. Application as May 17,1899. satin No. 717,236. on man.)

To all whom it may concern;

Be it known that I, HoRAcn P. BROWN, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Manifolding:

Sheets; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the artto which it most nearly appertains to inake, use, and practice the same.

This invention relates to improvements in manifolding-sheets and in the method of preparing the same.

The object of the present invention is to obviate the necessity for the use of carbon or other compounds which are set upon the surface of the paper to which they belong, so as to be removed by reason of their inherent marking qualities.

Its further object is to produce a transfer which is clear and legible and which 'will not be subject to accidental rubbing or smudging; and its further object is to produce a manifolding impression without limitation as to the color or number of the transferred impressions.

With these objects in vie the invention consists for manifolding-work in placing on the one surface of asheet-of paperathin film or coating of adhesive substance and inplacing upon the other surface a coloring compound of any desired tint and having such a body that it may be in part or totally drawn away from the paper by the adhesive substance when the same is firmly pressed together.

It further consists in the various matters hereinafter described and claimed. I Heretofore manifolding has been generally performed by the interposition of a sheet of what is styled carbon-paper. In other instances carbon has been adhered to the back sheet upon which the original impression is made, and the carbon has been transferred to the face of the paperlaid beneath it. first method has proven objectionable for the reason that the carbon-sheet has necessitated an independent handling, during which the operator has been compelled to place his fingers upon the surface of the sheet and has had transferred from it to his fingersapor- The tion of the carbon. The second method has proven objectionable for the reason that the sheets where they have rested together have become impressed with the color of the'adjacent carbon, and in some instances the oilor :other substance with which the carbon is what is known as water-colon? This is not I removable by contact alone with ordinary paper-surfaces. In some instances the transferring qualities of this color compound are improved by mixing with it chlorid of caleium. This chlorid of calcium is more or less deliquescent and prevents the color compound from becoming entirely dry or hard The color compound may be applied by any suitable method. That at present employed by me is carried out by the use of what is known as an ink mill, consisting in a combination of rollers for spreading evenly and solidly the compound contained within a reservoir. When the color compound has been spread upon the sheet, the same is allowed to become partially dry before applying the adhesive surface upon the other side. In the preferred form the adhesive used in this invention is Japanese vegetable wax. In applying the wax is heated until it becomes a thin liquid, when it is applied to the side of the sheet opposite that carrying the color compound. In applying this wax any suitable method is used, and it is so applied as to produce a thin film or surface of the wax upon the sheet. By this means we have now produced what has been herein termed a manifolding-sheet--that is, a sheet which will receive an impression upon the one surface while transferring an impression from the other surface. In preparing manifold books the intermediate sheets are thus prepared; but the first sheet or the sheetof the original impression is prepared .with a colored surface described only while-the last sheet of the manifoldingfsheets is prepared with a wax Lift ' such material.

The invention has so far been described with reference to its application to manifoldbig-hooks only. It is, heweveiyequally applicable to separate sheets, the one of which is prepared by having 'the colored surface herein described upon the one side, leaving a clear surface for the original impression upon the other side. Whatis herein termed a. transfer-sheet may be prepared with an adhesive surface upon the one side, leaving a clear surface upon the other.

In the operating of manifoldiug with sheets prepared either for a manifold-book or for a simple transfer, as just desoribed,the sheets are superimposed, so that the colored surface of the one sheet rests against the adhesive surface of the other. When the original impression orwritiug is now performed, there is imparted to the sheets a pressure along the lines of the writing. This pressure brings into close contact the color surface of the one sheetand the adhesive surface of the other along the lines of the writing. The adhesive surface adheres to that part of the color surface against which'it has been pressed with a strength which is sufficient to separate a portion or all of the color surface from the sheet to which it was originally applied. A perfect transfer of the color surface of the one sheet to the adhesive surface of the other sheet is thus obtained along the lines of pressure as applied to the original copy.

This invention is equally applicable to the purpose for which it is designed when the original copy is made chirogra phically with pen or pencil or when it is made by printing, either by presswork or by type-writer.

Vhile I have herein described the invention as using a certain kind of wax, I do not wish to be understood as confining, myself to \Vhile I prefer it for its general qualities, I am aware that other adhecease? sives may be prepared and used with substantially the same result as far as the fact of transfer is concerned.

Having thus described this in \-'eution,what is claimed is- 1. A manifolding-sheet having a removable color compound upon the one side and provided upon its other exposed side with an adhesive substance adapted to receive and retain a. color compound when the same is applied thereto by pressure; substantiallyas described.

2. A mauifolding-sheet having upon the one side thereof a removable color com pound which is not a marking or transferable compound and upon the other side a film or coating of an adhesive substance adapted to remove to itself the said color compound when the same is applied thereto by pressure, substantially as described. a

3. In manifolding-sheets, the combination of two sheets, the one being provided with a continuous surface composed of a removable color compound, and the other with a continuous surface composed of an adhesive substance adapted to remove the color com pound from the other sheet when the said surfaces are superimposed, and pressure is applied thereto, substantially as described.

4:. As a newarticle of manufacture, a manifolding-sheet having a continuous surface.

composed of a color-film which cannot be transferred by pressure to the surface of ordinary paper, but which can be transferred by pressure to a paper provided with a prepared surface; substantially as described.

In testimony whereof I have hereunto set my hand this 28th day of April, 1899.

HORACE P. BROWN. Vitnesses:

E. F. MURDooK, BALDWIN VALE.

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