US140369A - Improvement in book-supports - Google Patents

Description

R. B. HINDLE, Bonk-Supports.

140,369, Patentedjuly1,1873.

5% MM WW Mz PHaro-L/THoGn/afwm ca MY. (assos/m macsss.)

, back or open part of book to rest upon.

UNITED STATES PATENT OEEIGE.

ROBERT B. HINDLE, OF ST. LOUIS, MISSOURI.

-IMPROVEMENT IN BOOK-SUPPORTS.

Specification forming part of Letters Patent No. 140,369, dated July 1, 1873; application tiled November 29, 1872.

To all whom it may concern:

Be it known that I, ROBERT B. HINDLE, of St. Louis, in the county ot' St. Louis and State ofMissouri, have made a certain new and useful Improved Book-Support and I do hereby declare that the following is a full and true description thereof', reference being had to the accompanying drawings and to the letters of reference marked thereon.

The nature thereof relates in forming an improved book-support and holder to consist of the combination ot' a standard, pivot-arms, supporting-bar, locking device, and adjustable holder, constructed and arranged to operate as will hereinafter more fully appear.

To enable those herein skilled to make and use my said improvements, I will now more fully describe the same, referring to- Figure 1 asa perspective view, showing the instrument in application and use. Fig. 2 is a sectional detail, showing groove in adjusting-bar. Fig. 3 is a side elevation ot' book support and holder, also indicating adjustability by dotted lines.

The invention can be formed ol' wood or metal.

A represents a standard with widened base so as to form a firm support. The standard A is united at its ends to a supporting-bar, B, by means of pivoted arms a a. Thus the supporting-bar B can be adjusted from vertical height in rectangular form to entirely close on top ot' the standard A. In order, however,

to firmly secure the supporting-bar B to any position within its range of adjustment, I have provided said bar with swinging arms C. Further, the swinging arms C are fitted to engage a rack, D, with which the top face of standard is provided. (See Figs. 1 and 3.) The supporting-bar B, thus locked in any adjusted position, forms a firm bearing for ghe ee Fig. l.) It will be noticed that the opened part of book is supported not partially, but its entire length. To entirely rest the supporting-bar B on top of standard A, the swinging arms C are allowed to close in a groove, c, which extends the entire length. Similarly, the top of standard A has a partial groove, c', at both ends to allow for closing actionof the pivoted arms a a. (See Figs. 1 and 3.) A most durable, reliable, and readily-adapted book-support is thus formed, holding the open part ot' book perfectly level and in an accomodating manner for the user.

With the book-support described a holder is provided, as follows: E is a round upright, bent as shown, and carrying a slide, e, which is fitted to slide in the side grooves el e2 formed in either one or both sides ofthe supporting-bar shown in Figs. 1 and 2. The object ot' thus sliding the upright E is to carry its tightening Vdevices to any position in the length of the supporting-bar. F is an arm, which, by its sleevef, slides on the upright E, and can be adjustably secured thereto by its set-screwj`1. At its end the arm F carries a threaded sleeve, f 2, in which operates a proper set-screw, Gr. This carries a swivel-foot, g, clearly shown .in Figs. 1 and 2. By means of its sleevef the arm F swings freely .on its upright, 4thus enabling the user to pla-ce and secure set-screw device on the page of book so as not to incommode.

Having thus fully described my said invention, what I claim isi An improved book-support and holder consistingof the combination of upright E, slide e, swinging arm F, set-screw G, swivel-foot g, supporting-bar B, grooves el e2, pivoted arms a a', rack D, swinging arms C, and standard A, all constructed to operate as and for the purpose set forth.

In testimony of said invention I have hereunto set my hand.

ROBERT E. HrNDLE.

Witnesses:

WILLrAM W. HERTHEL, A. J. HEATH.

Images