US713714A - Safety concussion device for locking appliances. - Google Patents

Description

No. 7|3,7|4. Patented Nov. 18, 1902'.- w. n. TAYLOR.

SAFETY CONCUSSION DEVICE FOR LOCKING APPLIANCES.

(Application filed May 13, 1899.) (No Model.)

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WARREN H. TAYLOR, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE a TOWNE MANUFACTURING COMPANY, OF STAMFORD, CON- NECTICUT.

SAFETY CONCUSSION DEVICE FOR LOOKING APPLIANCES.

SPECIFICATION forming part of Letters Patent No. 713,714, dated November 18, 1902.

Application filed May 13, 1899. Serial No. 716,733. (No model.)

To all whom, it may concern.-

Be it known that I, W'ARREN H. TAYLOR, a citizen of the United States, and a resident of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Safety Concussion Devices for Locking Appliances, of which the following is a specification.

A mode of attacking safes, vaults, and the like now commonly resorted to is to subject the structure to heavy concussions either by explosive or mechanical instrumentality, the object being to jar open the automatic boltoperating mechanism or to run down the timelock by breaking some of its parts.

My invention has for its object to provide a device which may be applied to or associated with the boltwork or other portions of the locking mechanism of a safe, vault, or the like, and which will under the influence of heavy shocks such as result from the mode of attack referred to be released or caused to move and come into engagement with, or dogging relation to, some part of the apparatus the movement of which is necessary to' the opening of the safe.

My invention therefore consists in a concussionactuated locking attachment and the combination of such an attachment with the aforesaid moving parts of the locking mechanism.

A preferred embodiment of my invention is herein illustrated, and consists of a dogging member automatically movable into the path of the moving part of the boltwork, but held normally out of dogging position by means of a detent which is moved out of engagement with the dogging member by a concussion or jar applied to the safe, vault, or the like.

My invention will be hereinafter described in detail and the novel features particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figures 1, 2, and 3 are fragmentary views showing three different ways of applying my invention to locking mechanism, Fig. 1 illustrating its application to the latch of a screw-door safe, Fig. 2 showing its application to the retaining-lever of an automatic bolt-actuating device, and Fig.

3 showing its location in position to directly dog the sliding boltwork. Figs. 4, 5, and 6 are respectively aplan with the casing removed, a face view, and an end View of a preferred embodiment of my invention. Fig.

,7 represents a modification which is asimplified form of the device.

Referring to Fig. l, A represents the latch of a screw-door safe, which swings upon its pivot 6t into and out of engaging position to prevent the unscrewing of the door. D represents the concussion-actuated dogging device, the dogging member 1 of which will move upon being released into such position that the latch A cannot move out of engagement with the wall surrounding the door, and the safe cannot therefore be opened.

Referring to Fig. 2, B represents the group of restraining-levers of an automatic unlocking device, which are normally held under control by the time mechanism detent. D represents the concussion-actuated dogging device, the dogging member 1 of which is shown released and in a position directly in the path of movement of the controlling-lever of the automatic mechanism.

Referring to Fig. 3, 0 represents the bar, which moves with the locking-bolts, and the dogging device is combined with such boltwork in a position to cause its dogging member 1 to directly dog the movement of the bolts and prevent unlocking of the safe.

Referring to Figs. 4., 5, and 6, it will be seen that the (logging member 1 is held normally out of dogging position by means of a detent 2, but is so mounted through the medium of a segment 3 upon a pivot 4 that upon release of the detent 2 the dog will be swung into dogging position by means of a spring 5,11aving one end secured to a fixed portion of the casing at 6 and with its other end attached at 7 to a toothed wheel 8, which imparts rotation through an idler S to a rack 9 upon the arc of the segment. A slot 10 is formed in the segment to accommodate the journal 11 of the idler.

To adapt the detent 2 to be released by c011- cussion or under the influence of a shock applied to the structure which is being guarded, said detent is mounted upon an elongated shaft 12, mounted in bearings 15 and having axial play therein, so that the detent will be permitted to move in the direction of the shafts axis out of the plane of the dogging element when a sufficient shock is imparted to the structure. In order to hold the detent 2 in the proper plane for engagement with the dogging element under normal conditions and yet prevent its releasing movement under intended conditions, any slight resistance, a frangible resistance being preferredsuch, for instance, as a sheet of tin-foil (indicated at 14 in Fig. 5)may be inserted in the channels 13, in which the shaft moves and which may be readily put in place beneath the detachable bearing 15. Inasmuch as the device in almost any use to which it is put will assume a position which will cause the shaft 12 to rest horizontally the resistance to axial. movement of the shaft need be but very slight. 16 represents a spring which moves the detent 2 into the engaging-notch of the dogging element when the device is set. To prevent the dog being displaced and rendered ineffective after it is released, a plunger 17, located in a suitable housing in the mounting, is projected by a spring 18 up behind the segment when the same is moved into the dogging position, and the dog cannot thereafter be released except the plunger be first depressed, which, however, is not practicable except the door he first opened. 19 represents an indicator to show when the device is in set position. The setting movement is most conveniently accomplished by applying a suitable key to the squared head of the pivot 4. The device is preferably constructed with a detachable top plate 20, on the under face of which one of the removable bearings 15 is attached. 21 represents an attaching-plate, by means of which the device may be secured in place. For accomplishing this purpose, however, the device may have such perforated ears or flanges or other attaching means as the location for which it is intended maydictate.

Referring to Fig. 7, it will be seen that instead of employing a segment 3, swung upon its pivot through the medium of toothed gear, a simple segment 3 is moved by attaching one end of the impelling-spring directly to the segment.

In the form of dog 1 illustrated in Figs. 2, 4, and 7 it will be seen that a hook is provided. This will adapt the dog to engagement with the projection on the lever B of the locking mechanism shown in Fig. 2, which is the use to which it will generally be put. Hence it will be impracticable to set the restraining-levers of the automatic unlocking device should it happen that the concussion dogging device is disarranged while the door is open, except the dogging device he first set.

Having thus described my invention, the following is what I claim as new therein and desire to secure by Letters Patent:

1. Adoggingdevice,forlockingappliances, comprising an automatically-moving dog, a detent holding the dog in operative,position, means controlling said detent until released by concussion.

2. In a dogging device for locking appliances, the combination with a dog, a detent in the path of said dog, an axially-movable shaft, upon which the detent is secured, and means for holding the shaftand detentagainst movement until released by concussion.

3. In a dogging device for locking applian ces, the combination with an automatically moving dog, means for holding said dog in inoperative position, and a device controlling said means until released by concussion.

4. In a dogging device for locking appliances, the combination of an automaticallymoving dog, means holding said dog against movement and a frangible device broken from the force of a concussion, releasing said means from engagement with the dog.

5. In a dogging device for locking appliances, the combination of an automaticallymoving dog, a transversely-moving and piv oted detent holding said dog against movement and a frangible device broken from the force of a concussion and allowing said detent to move transversely and release the dog.

6. In a concussion-actuated doggingdevice for safes, the combination with a dog, and means moving said dog into dogging position when released, of a detent for said dog holding it out of position, a movable mounting for said detent, and a resistance device normally opposing the movement of the detent and its mounting, constructed to yield from the force of a concussion.

WARREN H. TAYLOR.

Witnesses:

SOHUYLER MERRITT, HENRY O. TAYLOR.

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