US211239A - Improvement in permutation-padlocks - Google Patents

Description

UNITED STATES PATENT OEEIGEc BENJAMIN F. KELLY, OF SHELOGTA, PENNSYLVANIA.

IMPROVEM ENT IN PERMUTATlON-PADLOCKS.

Specification forming part of Letters Patent No. 211,239, dated January 7, 1879; application filed August 3, 1878. l

specification, and to the letters and figures of reference marked thereon.

Figure l ofthe drawings isa representation of a face of my lock. Fig. 2 is a vertical central sectional view of the same 5 and Figs. 3, 4, and 5 are detail views.

The nature of my invention consists in the construction and arrangement of mechanism for a combination-lock to be used in a padlock or other lock, as will be hereinafter more fully set forth.

The annexed drawing, to which referenoeis made, fully illustrates my invention as applied to a padlock. ,j

A represents the case of, the padlock, with the back B secured thereto in any suitable manner after the tumblers have been placed in position. From the top of the case extend ears, between which the shackle c is pivoted, the free end thereof entering a suitable opening in the case, as shown, and formed with a T-shaped head, c'.

From the center of the front of the lock- 'case extends a hollow hub, D, through which is passed a spindle, F, said spindle having upon its front end a disk, G, tting in a recess in the front of the case and graduated around its circumference.

Around the hub D, inside of the casing A, is placed a circular tumbler7 IL which is held against the inside of the frontvof the case by means of a spring, I), fastened to the tumbler,

` and partially surrounding the hub D in a of the hub. From the side of the spindle F, at the inner end, projects a pin, h, which is to enter any one of a series of notches, t', made l' in the eye of the tumbler I, so that said tumbler will be turned by the turning of the disk Gr at the front. Y

The front face of the tumbler I is formed with an annular recess, d', and passage e', leading from the same through the edge of the tumbler. 'The tumblers H I are provided on their adjacent faces with pins m m', respectively, so arranged as to come in contact with each other by the turning of one tumbler. The tumbler I is held down in place by a washer, p, and screw n, as shown.

By turning the disk Gr twice around until a certain predetermined number on the disk gets even with a mark on the face of the lock, the tumbler I will be turned'with it, and, by means of the pins m m, set the tumbler H so that the passage e therein will coincide with the entrance for the shackle. By now turning the disk G in the opposite direction to a certain other predetermined number, the tumbler I will be set to have its passage c coinciding with the entrance for the shackle. The shackle can now be closed, and its head G will enter the annular recesses or grooves d d', and a slight turn of thedisk Gr will lock the' same. The lock is unlocked in the same manner.

To change the combination it is only necessary to loosen the tumbler I and turn it so that c the pin 7L on the spindle will enter another of the notches i in said tumbler.

This invention is equally applicable to other kinds of locks as well as to padlocks.

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

The combination of the tumblers rH and I, constructed.` with recesses (l d', passages c c', and pins m m', and the graduated disk Gr, with spindle F,having lug 7L, and a series of notches,

t', in the eye ofthe tumbler I, substantially as and for the purpose herein set forth.

In testimony that I claim the above I have hereunto subscribed by name in the presence of two witnesses.

BENJAMIN FRANKLIN KELLY.

Witnesses:

J oEN B. Bonnnrs, 1 D. ANsLEY.

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