US727705A - Padlock. - Google Patents

Description

No. 727,705. PATENTEDMAT 12, 1903.

P. SOLBY.

PADLOGK.

APPLICATION FILED AUG. 9, 1902.

N0 MODEL.

jwani ofii- FEU'I/IZIIJSOQE, ghaaaaw Patented May 12, 1903.

'ATENT QFFICEQ FRANK SOLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MILLER LOOK OOMPANY,.OF PHILADELPHIA, PENNSYLVANIA,;A CORPORATION OF PENNSYLVANIA.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 727,705, dated May 12 1903.

Application filedAngust 9, 1902.

To all whom it may concern;

Be it known that I, FRANK SOLEY, a citizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainQImprovements in Padlocks, of which the follow-' ing is a specification. p

My invention relates to that class of padlocks which are provided with a number of notched and key-actuated tumblers and a IO member carrying a stump for entering the notches of the tumblers when the latter are moved into proper position by the key, the object of my invention being to so construct such a look as to provide for the automatic {5 withdrawal of the stump from the notches of the tumblers by the action of the shackle upon the stump carrying lever 'when the shackle is closed'and also to render it difficult to exert pressure upon the stump-carry- 2o ing lever for the purpose of pressing the stump against the tumblers when an attempt is made to pick the lock. These objects I attain by providing the lock with a stump-carrying member independent of that member which 2 5 engages the shackle and locks the same.

In the accompanying drawings, Figure 1 is a view of a padlock constructed in accordance with my invention, showing the face-plate removed and the shackle in the closed and 0 locked position. Fig. 2 is a similar view showing the shackle open. Fig. 3 is a perspective view of the tumblers detached from the lockcasing. Fig. 4 is a perspective view of the shackle-locking lever; and 51s a perspective view of the stump-carrying dog.

1 represents the lock-casing, which is composed, as usual, of two flanged shells held together by riveting the opposite ends of transverse studs-2, 3, 4c, 5, and 6, these studs also performing other functions, as described hereinafter.

The shackle? is pivoted to the stud 2 and has a notch 8,.a heel 9,,and a projecting finger 10, adjacent to said "heel, the notch 8 be- 5 ing adapted to receive a bolt 11, which in the present instance constitutes a flange upon the locking-lever 12, said lever being pivoted to a suitable pin in the lock-casing and. having also a flange 13 for engaging the heel 9 Serial No.-119,048- (No model.)

of the shackle when the latter is in the locked positionpas shown in Fig.1.

When the'bolt l1 of 'the locking-lever 12 is .end acting uponthe finger 10 of the shackle, as shown in Fig. 1.

The lock containsa series of tumblers 16, which are hung upon the stud 3 of the lockcasing,each tumbler having a spring 17,which bears against a pin 18in the lock-casingand tends to maintain its tumbler in the depressed position shown in Fig.1, from which position, however, the tumbler can be lifted by the action'of the key-bit, the stem offth'e key engaging the slotted key-hub 18, which is r0- tatably mounted in the lock-casing'in the usual manner.

Each of the tumblers 16 has a notch 19, these notches being so disposed that when the tumblers are properly adjusted by the key said notches will be in line with each other and also with a stump 20, projecting from a dog 21, the latter being pivotally mounted upon thestud 5 of the lock-casing and being acted uponbya spring 22, which is coiled around the stud at and tends to thrust the stump 20 of thedog into the notches 19 of the tumblers when the latter are properly adjusted.

A pin 23 on the dog projects into a slot 24 in the locking-lever 12, and thus serves to transmit the movement of the dog to said locking-lever. Hence when the tumblers are adjusted and the stem 20 enters-thenotches of the tumblers the movement of the dog 21 will effect such movement of thelever12 as to withdraw its bolt 11 from engagement with the notch 8 of the shackle and'E-itsflange 13 from engagement with the heel of said shackle, thereby permitting the opening movement of the shackle under the action of the spring 14.

When the shackle is being closed, the free end of the same acts upon the dog 21, so as to swing the latter upon the stud 5 and withdraw its stump from the notches of the tumblers, thereby permitting the depression of the same under the action of the springs 17, this movement of the dog causing such movement of the locking-lever 12 as to carry its bolt 11 into engagement with the notch of the shackle and its flange 13 into engagement with the heel 9 of the same. There is therefore a positive withdrawal of the stump from engagement with the tumblers and a positive engagement of the lockinglever with the shackle, no reliance being placed upon the springs for eifecting either of these operations. Furthermore,theprovision ofastumpcarrying member independent of the lockinglever 12 interposes an additional safeguard against the pressing of the stump against the tumblers when any attempt is made to pick the lock by exerting pressure upon the shackle.

Each of the tumblers 16 is recessed on the inner side, as shown at in Fig. 3, so as to provide increased clearance for the key-bits.

Although I have illustrated the shacklelocking lever as provided with a belt for engaging the notched portion of the shackle and also with a flange for engaging the heel of the shackle and although I prefer to use this construction because of the strength and security attained thereby, either of these looking elements may be dispensed with if the other is retained.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. The combination of the lock-casing, the

pivoted shackle, the notched tumblers, the shackle-retaining lever and a swinging dog engaging said lever and having a stump for engaging the notched tumblers, said dog having also a portion which is engaged by the nose of the shackle as the latter is being closed, so as to withdraw the stump from engagement with the tumblers, substantially as specified.

2. The combination of the lock-casing, a notched and pivoted shackle, the notched tumblers, the swinging shackle-retaining lever having a bolt for engaging the shackle, and a flange for engaging the heel of thesame, and a swinging spring-actuated dog engaging said locking-leverand having a stump for entering the notches of the tumblers, substantially as specified.

3. The combination of the loclecasing, a notched and pivoted shackle, the notched tumblers, the swinging shackle-retaining 1ever having a bolt for engaging the shackle, and a flange forengaging the heel of the same, and a swinging dog engaging said lockinglever and having a stump for entering the notches of the tumblers, and a portion for engaging the nose of the shackle as the latteris being closed, substantially'as specified.

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

FRANK SOLEY.

WVitnesses:

WILL. A. BARR, Jos. H. KLEIN.

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