US49100A

US49100A - Lock for pianos

Info

Publication number: US49100A
Authority: US
Publication date: 1865-08-01
Anticipated expiration: 1882-08-01

Description

UNITED STATES PATENT OFFICE,

E. L. GAYLORD, 0F TERRYVILLE, CONNECTICUT. l*

LocK Foa PIANos.

Specification forming part of Letters Patent No. 49,l00, dated August 1, 1865.'

To alt whom it may concern:

Be it known that I, E. L. GAYLORD, of'Ierryville,l in the county of Litchfield and State of Connecticut, have invented a new and Im proved Lock; and I do hereby declare that the A and articles generally having hinged lids.

The invention consists in the employment or use of two bolts of segmentform, provided with Shanks and connected with a tumbler in such a manner that the bolts will, as the tumbler is operated through the medium of a key, work in the path of a circle in and out from -the lock-case, in order to lock or unlock the article to which the lock is applied.

A represents the case of the lock, which may be of rectangular or other proper form, and fitted in a mortise in the article, to which the lock is to be applied.

B B represent two bolts of segment forni, Which are provided with straight shanks C C', connected at their ends and secured within the case A by a pivot, a. The bolts B B work from the pivot a as a center, and consequently move in the path of a circle of which the pivot a is the center, and in this movement work into and out from the lock-case through openings b in its upper edge, as will be fully understood by referring to Fig. l.

The bolt B has its shank C prolonged and bent about at right angles to its main portion to form an arm, c, which is provided` with a l pin, d, near its end, said pin being tted in a i. short curved slot, e, in a tumbler, D, which is l provided near its lower end with a hollow hub, f,

the ends of which are fitted in the sides of the case A, the interior ofthe hub heilig square to receive a key by which the tumbler is' turned.

Besides the short curved slot c, the tumbler t has a long slot, g, made init nearly straight,

the outer end being curved downward, and in this slot a pin, h, is tted,said pin being'at the outer end of an arm, t', which projects at right t angles from the shank C ofthe bolt B. (See Fig. l.)

Thetwo bolts are operated by means the tumbler D thus connected to them. By turningthe tumbler to the right the bolts B B will be drawn t within the caseA, as shown in red, and by turnt in g the tumbler to the left the bolts will be forced out from the lock-case, as shown in black. The bolts, when shoved or moved out from the lock case, pass through openings]- in a metal plate, E, secured to the lid ot the article to which the lock is applied.

Thus by this simple arrangement a very eili` cient and durable lock is obtained for the purpose specified, one not liable to get out of repair or become deranged by use.

I would remark that the tumbler D is retained in its two diti'erent positions by a spring, G.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The two segmentbolts arranged so as to Work from a common center, and operated through` the medium ot the tumbler connected with them, substantially in the manneras'and for the purpose herein set forth.

E. L. GAYLORD. Witnesses:

HENRY A'rWA'rER, ALEXANDER POND.