US204427A - Improvement in book-supports - Google Patents

Description

A. E. DOLBEAR. Book Support.

No. 204,427. Patented June 4,1878..-

AMOS E. DOLBEAR, OF SOMERVILLE, MASSACHUSETTS.

IMPROVEMENT IN BOOK-SUPPORTS.

Specification forming part of Letters Patent No. 204,427, dated June 4, 1878; application filed March 11, 1878.

To all whom. it may concern:

Be it known that I, AMos E. DOLBEAR, of Somerville, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Portable Writing-Arms, of which the following is a specification:

The object of this invention is to afford a suitable support for the arm of a person who is in a sitting position upon a chair or settee, and is also intended to be used as a table for the support of a book or writing apparatus. When it is used exclusively as a rest for the arm, it may be of small size, and when required as a writing-table, it should be en larged, and may consist of two flat surfaces or leaves hinged together.

The form of the bracket or brace that supports the table may be varied to conform to the shape of a settee, chair, easel, or other piece of furniture.

The height of the table above the 'seat should be such as will allow free motion of the hand for writing, and an erect position of the body, thus preventing the constrained position that is usually assumed by students and others when taking notes of public lectures.

In the drawings making a part of this specification, Figure I is a side view, and Fig. II is a perspective view, showing the relative position of the parts when in use.

A curved iron bracket or brace, formed with two arms, as in Fig. I, is shaped like a hook at the top A of the upper arm A B, the lower part of this arm, as at 0, being nearly straight, and fitted to hold the plane table or leaf F. The other arm, D, extends downward from O, and has at its lower end an attached pad or cross-bar, E, at right angles with this arm.

This cross-bar rests in contact with the back of a chair or seat, and when used upon a settee, as represented in Fig. II, should be of suflicient length to touch two of the rounds or slots J. This gives a bottom support, and prevents lateral motion of the table F, while the hooked end A of the upper arm clasps the top bar I of the back of the settee, and may be moved to the right or to the left, as required.

When more space is needed than is afforded by the lower leaf F, the top leaf G is opened, turning on the hinges H H, both being nearly parallel with the seat K.

What I claim, and desire to secure by Letters Patent, is

A book-rest composed of the converging curved arms B D, the former having hook A, and the latter the bar E, and the longitudinally-divided hinged sections G F, the latter secured to the bracket 0, as herein described, and for the purpose specified.

AMOS E. DOLBEAR. n 3.

In presence of- JOHN M. BATCHELDER, GEo. F. FULLER.

Images