US163605A - Improvement in folding school-desks - Google Patents

Description

l. N. PEIVRCE.

School Desk. No. 163,605. PatentedvMay 25,1875.

lnvni'or:

UNITED STATES PATENT QFFICE.

ISAAC NEWTON PEIROE, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN FOLDING SCHOOL-DESKS.

Specification forming part of Letters Patent No. 163,605, dated May 25, 18 75 application filed October 15, 1874.

T 0 all whom it may concern:

. Beit known that I, ISAAC NEWTON PEIROE, of Philadelphia, State of Pennsylvania, have invented an Improved Folding School-Desk, of which the following is a specification:

The object of my invention is to increase the utility, comfort, and convenience of the school-desk, by simplifying the seat, closing and locking up both the desk and inkstand, and changing the desk from a writing'desk to a reading or studying desk, by the combinations as herein set forth, and explained with the accompanying drawing.

Figurel represents the desk and open.

A is the seat. a isthe pin or pivot in the side or leg 0 of the desk, on which the seatiron S turns. This-pin or pivot to is round at the end, as at c, with an ova-l or cam shaped shoulder on one side, as at I). The seat-iron S has a round hole,f, to fit the round part c of seat fully the pin a, and inside'bf the plate S is an enlarged opening. 9, extending nearly through the plate, to allow the seat iron to move around the pin one-quarter of a circle, and when the seat is down one side of the shoulder of this opening 9 rests upon the corresponding side of the cam or oval shaped shoulder 12, and when turned up the opposite side of the opening 9 rests upon the corresponding side of the cam or oval shoulder b, making a strong, simple, and noiseless joint, without any gum, or rubber, or screw-bolt. This pin a, with its cam-shoulder b, maybe on and form a part of the seat-iron S, and the corresponding opening fand g may be in the side of the desk or leg-iron c, with the same effect and producing the same result. B represents the desk-lid, which, when desired, can be let down and locked fastby the desk-lid attachment I, as.

described, in the following manner: It is the desk-iron, hinged on the pivot i, with a curved brace or support, j, having notches k l m. C is the latch or bolt to fasten the desk-lid,and works in the hinge-plate D on the pin n, with a thumb-piece, 0, on which is a projection, 10, which fits in the notches k, l, or m, to fasten the desk-lid in any desirable position. E is a flat spring, riveted on the end plate or end of the desk, for the purpose of keeping thelatches in their notches. The latches are connected by two pieces of wire, it it, connected by a short lever, to, so that moving one latch moves the other latch. By pressing in the latch at either end of the desk, with the finger on the thumbpiece 0, the desk-lid can be lowered or raised, and the projection p, slipping back into any of the notches k, l, or m, fastens the desk-lid where desired. F represents the book rest piece on the desk-lid, working on a wire pivot, 17, at each end. It can thus be turned oneqnarter around, and thus turn up a book rest or ledge, 11, and by dropping the lid, so that the projection 1) falls into the notch l, the writingdesk becomes a' reading or studying desk by G in Fig. 2.

H represents the ink-well cover, which has a notch, 8, through which a wire-bolt, y, from the inside of the desk, is pushed up by a wire pin, w, in the under side of the desk-lid, pressin g the bolt upward whenever the desk-lid is down, thus securely locking up the inkstand whenever the desk-lid is down; at the same time the desk-lid is locked down by the latch O, and when the desk-lid is raised the wire bolt 1?, by its own spring, drops below or out of the notch s, and the ink-well cover becomes unlocked.

1 claim as my invention- 1. The seat-joint, consisting of the standard 6, provided with the pivot to c, havinga rounded or oval projection or calm-b, formed thereon, in combination with the seat-arm 8, having an opening, f, for the said pivot, and an oval chamber, g, to receive the cam b, as and'for the purpose set forth.

2. The lid B, provided with the book-rest F F, turning one-quarter around upon the wire pivots V V V V, and having the book-ledges q q, substantially as described.

3. The wire bolt 3 and cover H, provided with the notch or hole 8, in combination with the lid B, having the pin or block projection X upon its under side, to engage with the bent wire bolt y, and force it up into the notch or hole 8, substantially as described.

4. The desklid attachment I, having the notches is l m, in combination with the latch G, having the projections 19 and springs E, and wires t t, and lever a, substantially as described.

ISAAO NEWTON PEIRGE.

Witnesses:

H. B. MOGAW,

J. KocH 'HAUoK,

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