US342005A - Lock mechanism for safes and vaults - Google Patents

Description

(Model.)

H. GROSS.

LOCK MEGHANISM POR SAPBS AND VAULTS. y No. 342,005. Patented May 18, 1886.

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LOCK MECHANlSlll/l FOR SAFES AND VAULTS.

SPECIFICATION forming part of Letters Patent No. 342,005, dated May 18,1886.

Application filed September 2G, 1885. Serial No. lTSfiil. (Model.)

To all whom t may concerns Be itknown that I, HENRY GROSS, a citizen ot' the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Lock Mechanism for Safes and Vaults, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My present invention relates particularly to that class ot' lock mechanism known as permutation-locks,77 and has for its object, rst, to simplify the means whereby the driving-tumbler of the permutation spindle may throw the bolt-work out of engagement with the turning-knob, and, second, to provide means whereby, in event the permutation is broken or blown off in an attempt to forcibly open'the safe, the removal of the permutation-work will cause a detent to come into operation and hold the bolt mechanism out of engagement with the disk ot' the turning-ar bor, so that the bolt mechanism cannot be operated.

To this end my invention consists in the combination, with the permutationspindle and driving-tumbler, of a yokeearrying the tuinbler-fence and provided with a lifting-arm for throwing the bolt mechanism outofaction.

My invention also consists in the combination, with the permutation-work and the boltwork, of a detent for holding the bolt-work out of engagement with its turning-disk anda suitable stop for retaining such detent out ot' action while the permutation work is in its proper position.

My invention further consists in certain novel details of construction hereinafter described, illustrated in the accompanying drawings, and particularly defined in the claims at the end of this specification.

Figure l is a view in side elevation of a permutation-lock embodying my invention, parts being removed and parts being broken away for the purpose oi' better illustration.

` Fig. 2 is a view in vertical transverse section through the dialarbor and tumblers of the lock. Fig. 3 is a plan view of my improved lock mechanism.

A designates the door of a safe or vault, and

B denotes the casing of the pernmtation mechanism, that is suit-ably attached thereto.

Through the door A extends the spindle c ofthe usual dial-knob, C, and upon the threaded end of this spindle is keyed the driving-tumbler D, of the permutation mechanism, having the notch d formed in its periphery, and provided with the pin d, that operates the notched tumblers E ofthe lock.

Around the driving-tumbler D'extends the yoke F, that is retained against the wall of the casing, in a. manner free to slide in ver tical'direotion, by means of the screw-platesf. The opening of this yoke is, as seen, consid erably larger in diameter than the drivingtumbler, and from the face of the yoke projects the fence F', that is caught by the permutation-tumblers when the notches of these tumblers are brought into alignment.

About midway the periphery ofthe yoke F is formed the lifting-arm F2, that extends through a slot in the casing B, and this arin, as well as the fence, is preferably cast integral With the yoke.

To the wall of the door is suitably connected the bolt-work, which comprises the bar G, to which the bolts will be attached in the usual manner, the bolt-plate H, that is held in a manner free to slide upon the screws h, that enter the slot h', and the bolt-link K, that is pivotally connected to the boltplate H by means of the screw 7c. The bolt-link K is provided upon its under side with alug or shoulder, t, at its inner end, adapted to be struck by the outer end of the liftingarm FAz and at its opposite end with the slot k2, by which will be caught the stud Z of the turningdisk L, by means of which the bolt-work will be thrown. The arbor Z ot` the disk L will extend through the door of the safe, and will be provided with a turning-knob in the usual manner.

To the inner face of the door, and prefera` bly in the relative position shown by the drawings, is attached the detent M, that serves to hold the bolt-work out of engagement with the turning-disk when the permutation mechanism has been displaced. This detent consists, preferably, of a thin bent spring-plate, which is pressed toward the door by the stop bar N, Vthat is attached to the casing B of the IOO \ means for lifting the bolt-link, and thus disengaging the bolt-work from the turning-disk. It will also loe seen thatin case of any attempt to force open the safe by knocking or blowing off the permutation mechanism the detent M will serve t0 hold the bolt-link elevated in such manner that, notwithstanding the displacement of the lock mechanism, the boltwork cannot be operated by the turning-knob. So long, however, as the permutation mechanism is in proper .position the detent will loe out of action.

It will be readily understood that the precise form and location of the detent M may be modified, and the details of construction above set out may also loe modified without departing from the spirit of my invention.

Having thus described my invention, what VI claim as new, and desire to secure by Letters 1. In lock mechanism, the combination, with the permutation-spindle and drivingtumbler, ot' ayoke carrying the tumbler-fence and provided with a lifting-arm for throwing the bolt mechanism out of action, substantially as described.

2. In lock mechanism, the combination, with the permutation-spindle and drivingtumbler, of the sliding yoke encircling said tumbler and provided with the tumbler-fence lifting-arm, the bolt-link K, having shoulder 7c', and the bolt-plate H, substantially as described.

v 3. In lock mechanism, the combination, with suitable permutation-work and boltwork, of a detent for holding the bolt-work out of engagement with the turning-disk and a suitable stop for retaining the detent out of action while the permutation-work isin proper place, substantially as described.

4. In lock mechanism, the combination, with the permutation-work and the bolt-work having the link-bar K, provided with the shoulder 7c', of the spring-detent M and a suitable s'top for holding the spring-detent normally out of engagement with the link-bar, substantially as described.

5. In lock mechanism, the combination of the permutation-casing provided with the stop or` arm N, the spring-detent M, the pivoted link-bar K, having shoulders 7c', the sliding bolt-plate H, and the turning-disk L, substantiall y as described.

' HENRY Gnoss.

Witnesses:

GEO. P. FISHER, Jr., JAMEs H. PEIRoi-l.

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