US429336A - Device for manifold copying - Google Patents

Description

(No Model) L. H.- CLARK. DEVICE FOR MANIFOLD COPYING.

No. 429,336. Patented'June 3;. 1890.

qwitmowo 1 vwawtoz attozmm UNITED STATES PATENT OFFICE.

LOUIE HENRY CLARK, OF DENVER, COLORADO.

DEVICE FOR MANIFOLD COPYING.

SPECIFICATION forming part of Letters Patent No. 429,336, dated June 3, 1890.

Application filed November 25, 1889- $erial No. 331,515. (No model.)

To all whom it may concern:

Be it known that I, LOUIE HENRY CLARK, of Denver, in the county of Arapahoe and State of Colorado, have invented certain new and useful Improvements in DevicesforManifold Copying; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in devices for manifold copying, the object being to facilitate the preparation of duplicate and triplicate copies of writing by the use of a single carbon sheet; and with this end in view my invention consists in a book having long and short leaves alternately bound between the covers, the short leaves preferably being of transparent material, and the long leaves are divided through the middle by perforations and are printed on opposite sides, so that when folded together the printed blanks are on the same side, with the short tissue leaves between the folds. When folded in this manner, a carbon sheet carbonized on both sides is placed between the tissue sheet and the fold made by the outer end of the leaf, thus making a copy on the outer end of the leaf and the back of the tissue sheet, which latter may be read through the leaf.

The invention further consists in certain novel features of construction and combinations of parts, as will be hereinafter described,

and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective of my improved, book. Fig. 2 is a sectional view. Fig. 3 is a modification in which the outer end of the leaf is folded beneath the stub, with carbon between.

A A represent the covers of the book between which the leaves are bound. The leaves are preferably of two distinct varieties, as shown, and alternately arranged. The long leaves are divided by the perforations 1 1 into two equal-sized leaves 2 3, which have their blanks printed on opposite sides, so that when they are folded together they are both the same side up. The alternate leaves 6 6 are of thin or tissue paper and bound securely between the covers. These leaves are half the size of the long or double leaves and The sheet 7 is carbonized on both sides, and to take a copy or two copies, as is usually intended, the carbon sheet is placed behind the tissue or small leaf, and the outer portion 3 of the long leaf in front of this tissue leaf is bent around back of v the carbon sheet. The writing is then done in the usual manner by making the marks on the portion 2 of the folded long leaf. This is the original copy. Another one is made on the corresponding side of the portion 3 of the long leaf, and a third copy is made on the back of the tissue sheet. Now the object of the transparent leaf is made obvious, for it is essential that this copy be read through the paper, the im-- printbeing on its back; hence a thin or tissue paper is generally employed. The tissue leaves may be made detachable at the stub, and the long leaves are provided with the perforations at the division-line only and not at the stub. Although the double sheet may be removed entirely, the tissue sheet is intended to remain in.

The books may be used for any business for which such articles are employed, and they are printed to suit the business; but they are particularly useful for memoranda, salebooks, shipping-books, bill and receipt books, delivery-books, ac.

It is evident that slight changes might be resorted to in the form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the particular construction herein set forth; but,

Having fully described my invention,what I claim as new, and desire to secure by Letters Patent, is-

1. In devices for manifold copying, the combination, with a leaf divided into two or more similar portions adapted to befolded back of each other, of a transparent leaf and a carbon sheet carbonized 011 both sides, adapted to be folded between the portions of the long sheet, substantially as set forth.

2. The combination, with a pair of covers, of long and short leaves bound between the covers, the long leaves made in two or more similar portions separated by perforations adapted to take the copy upon their backs.

and having blanks adapted to lie beneath each other when the portions are folded together, said short sheets being transparent, and a carbon sheet carbonized on both sides and adapted to be folded with the transparent leaves between the folds of the long leaves, substantially as set forth.

3. The combination, with a pair of covers, of long and short leaves bound between the covers, the long leaves made in two or more similar portions separated by perforations and having blanks adapted to lie beneath each other When the portions are folded together, said short sheets being transparent and detachable at the stub, and a carbon sheet carbonized on both sides and adapted to be folded with the transparent leaves between the folds of the longleaves,'snbstantially as set forth.

l. The combination, With a leaf adapted to have its outer end folded back of the stub end, of a removable carbon sheet to be illserted between these folds, whereby impressions made on the stub end are duplicated on the portion folded beneath this stub portion, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

LOUIE HENRY CLARK.

Witnesses:

R. W. STEWART, J. N. BILLINes.

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