US107100A - Improvement in locks - Google Patents

Description

@anni (attire,

Tiros POWERS, or NEW YORK, N. Y.'

Letters Patent-No. 107,100, dated September 6, 18701 IMPROVEMENT IN LOCKS.

The Scheule referred to in these Letters Patent and making part of the same To allwhom it may concern:

Beit known that I, TITUs Pownns, of the city of New York, in the State of New York, have invented a new and useful Improvement in Locks for Doors, Drawers, 85e., of which the following is aspeeification, reference being had to the accompanying drawings forming a part thereof, in which- Y Figure 1 isa sectional view of myvlock, cut through on dotted line z in fig. 2.

Figure?l is a plan of the back of my lock, having a portion of the ease inclosing the working parts cut away, exposing the interior.

In both of these figures the bolt is shown thrown out.

' Figures 3 and 4 are views similar to figs. 1 and 2, but showing the bolt thrown back into the lock.

Figure 5 isa side view of the tumbler.

Figure 6 is an edgevview of the same.

Figure 7 is a side view of thebolt.- y

Figure 8 is a view of a section of the bolt cut throughon the dotted line a in fig. 7.

Figure 9 is a side view of the key.

Figure 10 is an edge view of the same.

My invention consists in, so combining within aloek a tumbler, bolt, fence, `and double-acting spring, that when the tumbler isout of and free from the fenceit is forced, uecessaril y, both laterally and vertically, away from thefposition in which it must be in order to enter the fence, thus making it necessary-,in order to rcadjustf the tumbler, to enter the' fence, (and by that means permit the bolt to be thrown back into the lock after being thrown ont,) to move the tuinbler, both vertically and laterally, against the. force employedto move it ont of adjustment with the fence.

A is the face plate of the lock.

D is the back plate, forming with the face plate the ease containing the working parts.

B is the bolt.

C is the tumbler, loosely fastened at the bent end n in the face-plate, so'that it may swing a little laterally upon its fastening, the other end, t, resting ou the face of the bolt.

a is a fence, standing up on the' inner face of the boit, having in it an opening, k, which may be of any shape desired.; the ends t of the tumbler being made toV correspond in shape with the opening. This opening does not extend, as will be noticed, quite to the face of the bolt, leaving a shoulder, s, between the opening and such face.

f is an opening through the bolt ot' an irregular shape, and large enough to permit the key to turn within iton the post ai without moving the bolt until it (the key) engages in the notch h.

Whenthese several parts ,are combined and arranged, as shown in figs. 1 and 2, it is evident that the bolt, when thrown ont, will be prevented from moving back into the lqck by the end t of the tumbler c, which will rest against both the shoulders s and the portion of the body of the felice on the side of the opening It nearest theopening f, it being held down upon the face of the bolt, and at the same time forced to the side of the opening k by the spring p, the 'said spring acting in both directions for such purposes. If preferred, the spring p may be made to act only in one direction, and force the tumbler laterally `parallel to the face of the bolt, and another spring Amay be employed to press the tumbler against the face of the bolt.

Now, in order to move the end t of the tumbier from this position to one coinciding with the opening k, it must be forced back against the spring p, and also lifted. ofi' from the face of the bolt,'up just to the top of the shoulder s. The key is made to give to the tumbler these two motions.

'lhe surface c of the bit 0f the key is au inclined plane, which, when the key is placed in the lockA and turned, passes under the tumbler and lifts it up to the top of the incline, while the shoulder t', on the bitof the key, forces the tumbler back against the spring @and the inclined surface c and the shoulder t' are so made that they will carry the tumbler into a position exactly coinciding with the opening k. Then the key, engaging with the bolt in the notch It, throws it back into the lock. v

1f preferred, the end t ofthe tumbler may be forced out against the back plate D, and made to engage with a shoulder on the opposite side of the opening It, and then the wing of the key c must be made to pass in between the tumbler and the back plate D and force the end t of the tumbler towardk the bolt and into range with the opening k iu the fence.

lVhen the bolt is thrown in the notch o in the tumbler engages with the fence, as shown, and locks the bolt in that position.

The several parts described are, of course, susceptible of a great variety of forms without departing from the spirit of my invention, the essential conditions being that the tumbler shall be forced both-vertically and laterally ont of adjustment with the fence when disengaged from it. v

l do not claim broadly the combination in -a lock of a bolt having'upon it a fence with atuinbler arranged to pass through au opening; nor do I claim merely the controlling ofthe tumbler bythe key, so as to guide it through the opening in the fence, where the tumbler, when out of the fence and uncontrolled by the key, is left free to fall or pass into any position to which its gravity may carry it, or where it is not forced by some means out of range, both vertically andlatcrnlly, with the opening in the fence. As I am aware that such a construction and arrangement of tumblers in a lock is not new; but it is evident that when a tumbler' isthus left free, it is more likely than otherwise when out of the fence and freed from the control of the key, to fall or move into a position in a line directly vertical'or lateral to the opening in the l fence, and trom which it will only need to be moved to force the tumbler against the spring into range with the opening in the fence, and then to push the bolt back while the tumbler enters such opening. To this spcciticcolnbination and arrangement of the bolt, fence, and springs, I confine my claim.

What I do claim as my invention, and desire to secure by Letters Patent, is

The combination in a lock of the bolt B, the fence a, the tumbler C, and the double-acting spring p, atl constructed, arranged, and operating substantially as and for the purpose specified.v

TITUS POWERS.

Witnesses:

WiLLIAM H. Dow,

Lewis A. Dow.

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