US980608A - Padlock. - Google Patents

Description

E. H. 'OOSGROVH- PADLOOK. APPLICATION IILBD 0013.28, 1909.

Patented Jan.3, 1911.

s cm, WASHINGTON. B4 c.

EDWIN H. COSGROVE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MILLER LOCK (10., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF VANIA.

PENNSYL- PADLOCK.

Specification of Letters Patent.

Patented Jan. 3, 1911.

Application filed October 28, 1909. Serial No. 525,216.

'0 all whom it may concern:

Be itknown that I, EDWIN I-I. .Cosenovn, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Padlocks, of which the following is a specification.

The object of my invention is to provide a suitable guide for the shackle of a look when it is shifted to the locking position, so that it will aline properly with the short shackle and the opening in the case of the look.

In the accompanying drawing :Figure 1, is a face view of the padlock with the front plate removed and illustrating my invention, the shackle being in the closed position; Fig. 2, is a sectional view on the line 22, Fig. 1; Fig. 3, is a face view, partly in section, of the lock showingthe shackle raised and in the open position; Fig. 4, is a perspective view of one section of the casing; and Fig. 5, is a perspective view of the shackle.

A is the casing of the lock formed of a back plate A and a front plate A B is the main shackle and cl is the short shackle. The main shackle is notched at b and the short shackle or ejector is notched at d, so that the shackles will engage one with the other before entering the opening in the casing. The main shackle passes through an opening a in the flange of the back plate A and through an opening in a plate a secured to the casing.

D is the bolt carrying the short shackle 03 and this bolt is guided in the usual manner and carries the tumblers f which are pivoted at f to the bolt.

2' is the key cylinder adapted to the front and back plates of the casing, and the bolt is slotted at d to allow for its vertical movement independent of the key cylinder.

71 is the locking post with which the tumblers engage. This locking post also acts as a guide for the bolt.

9 is a coiled spring having one end bearing on the casing and the other end secured to the longleg of the main shackle, and on the bolt is a lug d which enters a notch b in the long leg of the main shackle, and aids the short shackle of the bolt D in lifting the main shackle to open the look.

In order to accurately guide the long shackle, I slot the long leg of the shackle atb, as shown in Fig. 5, and mount a guide plate 0 on edge directly under the guide opening in the plate a, so that when the shackle is turned to the closed position the slot in the end of the shackle will aline with the guide plate and this guide plate will allow the spring to draw the shackle to the closed position, the guide plate e preventing the shackle turning in either direction as the spring is closing it, thus insuring proper alinement with the hole in the casing to receive the short arm of the shackle. I/Vhen the shackle is raised by the bolt D the end of the long leg of the shackle is slightly above the upper end of the guide plate 6 and the spring turns it to the position shown in Fig. 3, so that the end of the shackle rests upon the edge of the guide plate. The lug 0Z of the bolt acts as a stop to limit the movement of the shackle B as it comes in contact with the shoulder formed at the termination of the slot 6 in the shackle.

Thus it will be seen by the above construction that I make a very simple and effective guide for the main shackle of the lock, which will always insure proper alinement of the short arm of the shackle with the short shackle and the opening in the case through which the long arm must pass when the lock is closed.

I claim 1. The combination in a padlock, of a casing, a bolt, a shackle having a long leg extending into the casing, the end of the long leg being slotted, a perforated plate secured to the casing through which the long leg extends, and a guide plate, also fixed to the casing, and mounted directly under the opening in the perforated plate and in line with the shackle so that when the shackle is moved to the closed position the slotted end of the shackle will pass over the guide plate, the plate holding the shackle in the proper position to aline with the opening in the lock casing.

2. The combination in a padlock, of a casing, a shackle, said shackle being capable of being turned in the casing, a bolt, tumblers carried by the bolt, a lug projecting from the bolt, the shackle being notched to receive the lug on the bolt, the lug limiting the lateral movement of the shackle when it is turned.

3. The combination in a padlock, of a casing, a pivotally mounted shackle having lug acting as a stop for the shackle when it 10 a long and a short leg, the long leg of the swings in the open position.

shackle being slotted at its extreme end, a In testimony whereof, I have signed my perforated plate through which the long leg name to this specification, in the presence of of the shackle extends, a guide plate ditwo subscribing Witnesses.

rectly under the opening in the perforated EDWIN H. COSGROVE. plate so that it Will engage the shackle When Witnesses: it is depressed, a bolt, a lug on the bolt, the WM. E. SHUPE,

shackle being notched to receive the lug, the WM. A. BARR.

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