US186915A - Improvement in book-clamps - Google Patents

Description

a. T. Woon.

BDOK-CLAMPS. Nb.185,915 I Patented Jan. 30,1877.

N, PETERS, PHOTO-LITHOGRAPHER, WASHMGTDM D c.

UNI TAT A GEORGE T. WOOD, OF SAN FRANCISCO, OALIFORNIA.

IMPROVEMENT IN BOOK-CLAMPS.

Specification forming part of Letters Patent No. 1 86,915, dated January 30, 1877; application filed July 6, 1876.

To all whom it may concern:

Be it known that I,,GEORGE T. WOOD, of San Francisco city and county, State of Galiifornia, have invented an Improved Book- Clamp and I .do hereby declare the following description and accompanying drawings are sufficient to enable any person skilled in the art or sciepce to which it most nearly appertains to make and use my said invention without further invention or experiment.

My invention relates to an improved clamp or strap for binding several books together so that they can be readily carried about in a single bundle.

Referring to the accompanying drawing, Figure 1 is a perspective view of my improvement.

Let A B represent two pieces of leather or other flexible material of equal length, and of any desired width. Thelength ofthese pieces of leather will be governed by the general length of the books to be bound between themthat is, each of the pieces will be somewhat longer than the longest book. Each of these pieces I then provide with corresponding series of transverse slotsccc, which are placed at a short distance apart near each end, the slots in the ends ofthe two pieces corresponding with each other. D is aleather strap,which is ofthe proper width to pass readily through the slots 0 c in the pieces A B, and is long enough to pass around any ordinary sized bundle or number of books, such as children usually carry to and from school. On one end of this strap I secure a buckle, E.

In applying this strap it is passed down through one of the slots at oneend of the upper piece A, then through the corresponding slot in the lower piece B; thence it passes along under the piece B, and up through one of the slots in the opposite end of the piece B, and then through the corresponding hole in that end of the piece A, while its two ends can be buckled together above the upper piece A, so that when the books to be bound together have been placed between the pieces A B, the strap D will completely encircle them, while the pieces A B form the clamping sides, and serve to prevent the strap D from injuring the edges of the outside books, over which it is strained.

I make the main strap act as a handle by placing in piece A the rivets i 'i, shortening up, so as to form the loopfin and continuous with the main strap D.

The strap D may be adjusted to suit books of different lengths by changing its position in the slots 0 c, at each end of the pieces A B, so as to shorten or lengthen its compass.

This book-strap is not only convenient and preserves the books boundin it from injury, but the pieces A B, being made of leather or other flexible material, will not scratch or indent the books, nor will it injure a school desk, slate, or other piece of furniture or article upon which the package of books is placed or moved about. a

I am aware that shawl-straps have heretofore been made with flexible braces without slots for adjustment.

I am also aware that book-clamps have been made with rigid braces without adjustable slots, and having two straps to inclosev the books, one strap having a metallic loop on its end, to engage over one end of the rigid bar, as shown in the patent to Boyce, April .16, 1875, and these I do not claim; but,

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

As a new article of manufacture, a bookclamp composed of the flexible braces A B, provided with adjusting-slots c c c, and a single strap, 1), fastened to A by rivets 11 i, so as to form a handle, f, as set forth.

, GEORGE T. WOOD.

Witnesses:

GEo. H. STRONG,

()LWYN T. STACY.

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