US106450A - Improvement in the manufacture of pocket-books - Google Patents

Description

JAMES C. ARMS, 0F NORTHAMPTON, MASSACHUSETTS.

Letters 'Paten-t No. 106,450, dated August'm, 1870.

IMPROVEMENT IN THE MANUFACTURE OP POCKET-BOOKS.

The Schedule referred to ii: these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, J AMES (l. ARMS, of Northampton, in the county ofHampshire and State o Massachusetts, have invented certain Improvements in Springs for Book-Flaps, of which the following is a specification, reference being had to the accompanying drawing.

My invention relates`to certain improvements in the spring fastening for pocket-books, for which Letters Patent were granted to 11F. Dubber, January 10, 1865, No. 45,819; and

It consists- First, in the'manner yof attaching the spring to pocket-books and other small articles; and

Second, in the manner of constructing and applying a sectional spring to diaries and other long articles.

Figure 1 is an inside view of the covering and flap of a pocket-book, extended, showing the manner of attaching the spring; Figure 2 is a cross-section, when completed, and the spring secured in place;

Figure 3 is a view 'of the spring as constructed for long books, in several sections or pieces,;aud

Figures 4 and 5, views illustrating the mannerlof securing together the diferent parts of the spring shown in fig. 3.

In constructing the springs for book-flaps, it has been customary heretofore to make them of a U- shape, in a single piece, with their end of the full width and size ofthe Hap of the book.

The springs thus made were then placed against the inside of the flap, when the latter was in an uniinished condition, and secured by turning the edge of the leather inward, tightly, over the spring, and pasting the leather down. l

This method is, however, opcnto two serious obl jections: first, that the leather being vdrawn tightly over the thin edge of the metal, is soon worn through,

and the spring left exposed and loose; and second,

that the 'cover and Hap must be finished by hand, and is therefore quite expensive to make.

v My improvement consists in forming the flap with a, pocket on its inside, to receive the spring, which la'tter is inserted after the flap `and cover are iinished, so that the cover can be made and finished by -rnachinery, at a much less cost; and'so, also, that the 'spring is not requiredto extend out to the corners of the tiap, and consequently .is notV liable to wear through at the corners.

My improved method of applying the spring is clearly shown in fig. 1, in which- A is the outside or cover;

A', the Hap; and g a strip ot' paper or cloth, pasted to the inside of the iiap, in such manner as to form a pocket, a., into which the end of the spring G can be inserted, as shown. I

Bythis methodof construction, it will be seen that the edge of the spring, instead of,being covered by the leather only, is covered by the/I lining also, which is folded over with the leather in forming the pocket; and, if desired, an extra piece may also be pasted in and folded over the edge of the spring,

It will also -be observed that the spring does not reach to the corners of the aps,where the most wear is, and thus it is rendered far more durable, as well as cheaper.

The cover A has attached to its inside two cloth or other ears or flaps, D, which, after the end or body of the spring is inserted into .the pocket, are pasted down over its arms, to hold it in place, and keep the flap A doubled over. y

Then thus arranged it will be seen that the only hand work necessary,in applying the spring, is to paste down the flaps or ears D.

Thus I am enabled to apply the spring in a better manner and at a less costlthan formerly, and also to use a smaller and consequently cheaper' spring.

For books, diaries, 85e., having long naps, it has been foundim'practicable to apply tbe` springs, formed in a single piece, as described in Dnbbezrs patent, as it requires such large sheets of metal from which yto cut the springs, the greater portion of which is waste, that the springs are rendered too expensive for common use.

This difficulty I avoid by making the spring in parts or sections, as shown in fig. 3, in which E is a narrow flat strip of ordinary sheet metal., to extend alongthe outer portion ofthe ilap,.and F are two flat springs, properly bent and secured to strip E by clips G lhe clips G-consst merely" of. a piece of sheet metal, cut to the form shown in tig. 4, and applied.v to

the opposite side of the-strip from the spring, and

-then bent` soas to embrace the strip and spring, as

shown in-igs. 3 and 5.

The compound spring, thus constructed, I apply to the book vby means of a pocket and loose ears, in the same manner as those made of a single piece and above described.

The compound spring thus produced answers the same purpose, at a m-nch less cost, than a large continuons spring.

By these improvements I aincnabled to make a much better and more dnrablearticl'e; and by this means also, I am enabled to crease, stamp, and finish up complete the outside of the cover before applying the spring thereto, and thus to make a nea-ter and more uniform finish. Y

Having thus described my invention,

1. The herein-described method cf applying and securing the spring C to pocket-books or diaries; that is to say, by means of a. pocket 'Qi'med in they Hap', to receive it, substantially as described.

2. 'llieirnprovcd spring for pocket-books or diaries, consisting off the strip E, having the bent spring F secured thereto by mczms of the clips G, substantially as described.

Witnesses;

XV. P. DERBY, L. D. THAYER.

J MES C'. ARMS.

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