US695345A - Padlock. - Google Patents

Description

No. 695,345. Patented Mar. ll, I902.

F. SULEY.

PADLUCK.

(Application filed. Apr. 28, 1898.)

(No Model.)

UNITED Sermons Patnnr rnrcn.

FRANK SOLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE MILLER LOOK COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A COR- PORATION OF PENNSYLVANIA.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 69 5,345, dated March 11, 1902.

Application filed April 23, 1898. Serial No. 678,600. No model.)

ject being to provide for the more effective operation of the shackle-retaining lever by the key.

In the accompanying drawings, Figure 1 is a view of the lock with the face-plate removed and the parts shown in the locked position. Fig. 2 is a similar view with the fixed wards of the look also removed and showing the shackle-retaining lever withdrawn by the action of the key, so as to permit the shackle to swing open. Fig. 3 is a view of the lock with the face-plate removed and illustrating the action of the guard-plate for preventing the opening of the look by hammering upon the face of the same, so asto jar the shackleretaining lever out of position; and Figs. 4 and 5 are views illustrating modifications of the invention.

The casing 1 of the lock is composed, by preference, of front and back plates struck up out of sheet metal in the usual manner, although this casing may be constructed in any desired way.

The shackle 2 is hung to a pin 3 in the casing and has a notched end 4 for engagement with a hook 5 on the retaininglever 6, the latter being hung to a pin 7 in the casing and being retained in looking position by means of one end of a spring 9, which is coiled around a stud 10 and acts upon a pin 11 on said lever 6, the other end of the spring acting upon a pin 12 on the heel of the shackle 2, so as to tend to swing said shackle open when its hooked nose is released from engagement with the hook of the retaining-lever 6.

A short lever 13 is hung to a stud let on the lock-casing, one arm of this lever acting upon the depending portion of the lever 6 and the other being adapted to be acted upon by the bit of the key inserted into the rotary keyhub 15, as shown in Fig. 2, so as to effect such operation of the lever O as to withdraw its hook from engagement with the hooked nose of the shackle," the fixed wards 18 preventing the operating of the lever 13 by the key un= less the latter is properly bitted.

The use of the key-lever 13, acted on by the key and acting upon the shackle-retaining lever 6, permits of a quicker operation of said lever 6 than when the same is acted upon directly by the key, as in the lock shown in my prior patent, No. 601,087.

heap locks of this class are open to the ob jection that the shackle-retaining lever can by a sudden blow upon the lock-case be subjected to such a jar as to cause it to move and release its hold upon the shackle, and with the view of preventing this I hang upon the stud 10 in the lock-case a guard-plate 16,which is acted upon by a spring 17,whereby it is normally retained in the position shown in Figs. 1 and 2, in which position it does not inter fere with the free swinging movement of the lever 6 under the action of the key in order to release the shackle and open the lock. The inner end of the guard-plate 16 when it moves, however, swings across the path which will be followed by the lever 6 in its opening movement, and the spring 17, which acts upon said guard-plate 16, is preferably lighter than the spring 9, which acts upon the retaining-lever 6. Hence if the blowis delivered upon the lock-case in the direction of the arrow as, Fig. 3, the guard-plate 16 will be moved before the lever 6 is affected, because the upwardly-projecting portion of-said guard-plate is almost directly at right angles to the line of thrust imparted to the lock-case by the force of such blow and because also said guard-plate is not under such restraint as the retaining-lever on account of the lighter spring which actuates the same. Even if the two springs 9 and 17 have the same force, however, the position of the guard-plate 16 Will cause itto move in advance of the movement of the lever 6, and the inner end of the guard-plate will therefore be carried down into the path of the inner end of the lever 6, so that the movement of the latter will be arrested and the release of the shackle from the control of the lever will be prevented.

It is not essential to the proper carrying out of my invention that the guard -plate should be mounted so as to swing. For instance, in Fig. 4 I have illustrated a modified form of lock in which a slotted guard-plate 16 is mounted upon pins 10 in the lock-case, so as to slide across the path of the lockinglever 6 when a blow is delivered upon the lock-casing, said slide-plate being normally held out of locking position by a spring 17. Neither is it essential that the guard-plate should be mounted in the casing, so as to engage with the locking-lever, as a reverse construction may be adopted, if desired. Thus in Fig. 5 I have shown a lock in which a guard-plate 16 is hung to the locking-lever and is acted upon by a spring 17 so as normally to be held free from engagement with a lug 10 in the lock case, thus permitting free movement of the locking-lever under the I action of the key, the guard-plate, however, swinging into position to engage with the lug 1O when a blow is struck upon the lock-case for the purpose of jarring open the lock. The lug 1O thus constitutes the fixed point of bearing for the guard-plate 16 as do the pin 10 for the plate 16 and the pins 10" for the plate 16.

Having thus described my invention, I

ent

The combination of the shackle, a shackleretaining lever, a spring for retaining the same in looking position, means operated by the key to release said lever from engagement with the shackle, a guard-plate mounted so as to move into position to lock the lever when a blow is struck upon the lock-casing, and a spring acting on said guard-plate to hold it normally out of action, said spring being lighter than the spring which operates the shackle retaining lever, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK SOLEY.

Witnesses:

GEORGE L. BATTERSBY, EDWARD S. MULLIN.

claim and desire to secure by Letters Pat-

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