US74781A - Improvement in permutation-looks - Google Patents

Description

Anton Weitz el.

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@citen tatrs .gamut @frn Letters Patent No. 74,7811, dated Febrztary 25, 1868.V

IMPROVEMENT IN PERMUTATIoN-,Locrs che Srlgehnlt nimh tu in tten tttnatnt mit 'mating pnt ni the nnte. i

T0 WHOM IT MAY CONCERN:

Be it known that I, ANTON WETZEL, of Cincinnati, Hamilton county, Ohio, have invented new and useful Improvements in Bank or Safe-Locks; and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making'partof this specication.

My invention relates to the class known as permutation-locks, operated by means of a handle having graduated dials attached, and consists in such a construction and such devices that the tumbler or disk-shaft may be operated at right angles to the shaft of the lock-handle byA means of bevel-gearing for the purpose of making it furtherremo-ved from thc danger of picking:

My'invention further consists in devices for ascertaining, on the inside of' the door, at will, and at any time, `the combination of the lock, so that the said combination may be set at random by a simple change of the pins of the disks; or of the relative position ofthe bevel-gearing with reference to the dial of the handle. In the accompanying drawing-- Figure 1 is an interior elevation of a lock embodying my invention.

Figure 2 is a'sectional plan of a part of the same.

Figure 3 is a perspective view of the disks and shaft. l

A istbe case ofthe lock; B, the bolt; C, the interlocking tumbler. D is a stud-shaft, on which the disks revolve,i-projecting forward, rigidly secured to the plate E of the lock-case. The disks F F F F" Fm freely revolve on the shaft D, and are provided `with holes e, adjusting pins f, and slots or gates g, into which latter the tumbler C falls, when the lock is free' to open. The disk F is adapted Ito raise lthe tumbler C in locking,

by means of the inclined face g', and is secured to the miter-wheel G; H is a match miter-whe'cl rigidly secured to the handle I of the lock. The handle is provided with the ordinary dial-face J. K' is a. bolt or pin I use to find out the combination of the lock. It is adapted to be pushed forward, as the disks are revolved and the slots g brought opposite to it, by means of the pushing-pin L, sliding through a hole, M, in the case, and acting on the inclined head K. The bolt K K is retracted on the withdrawal ofthe pin L bypmeans of the spring O. The stationary intermediate disks P, which are feathered, p, to tit the groove d of the lshaft D, form` guides by means of slotsttZ for-the passage of t'hepin or bolt K through the disks F F F FU Ff,

When itis necessary to find out the combination, the pin L is inserted through the aperture M, and pressed tightly against the inclined fnceK. The bolt K is thus pressed against the diskFH. VThe handle I is then revolved until the slot g isoppositc the pin or bolt K, when said bolt passes through the disk, and the number on thedial opposite the usual pointer on the case is noted. The operation'is then repeated by the customary reversal of motion for each figure until the bolt K has passed through all .the disks, n'hen the whole combinatipn is discovered.

I claim herein as new, and of my invention- 1. In combination ,with the tumbler D, the miter-wheels G H, by which the gated disks F F F" F Fm are situated and operated at right angles to the operating-handle I of the lock, as` described andfor the purpose specified. l "v v 2. The inclined headed bolt K K', pin L, spring O, and disks Pp lo', arranged and operating in the manner and for the purpose set forth. i

In testimony of which invention I hereunto set my hand.

ANTON WETZEL.

Witnesses: y

J. Gr. DOUGLASS, Trios. ODown.

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