US 228656 A
Description (OCR text may contain errors)
No. 228,656. Patented June 8,1880.
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UNITED STATEs PATENT OFFICE.
JosEPH Loon, oF NEW YORK, N. Y.
SPECIFICATION forming part of Letters Patent No. 228,656, dated June 8, 1880.
Application filed September 15, 1879.
To all whom it may concern Be it known that I, JOSEPH LOCH, of the city, county, and State of New York, have invented a new and useful Improvement in Padlocks, which improvement is fully set forth in the following specication, reference being had to the accompanying drawings, in which- Figure 1 represents a longitudinal section of my look. Fig. 2 is a crosssection thereof in the line w Fig. l and Fig. 3 is a detail View of the plate which carries the locking mechanism.
Similar letters indicate corresponding parts.
This invention relates to improvements in padlocks; and the invention consists in a novel construction and arrangement of the locking mechanism and the shackle.
In the drawings, the letterA designates the shackle, and B the lock-case, the arms c d of the shackle having different lengths, and the lock-case having sockets e f to receive such arms.
The socket e receives the short arm c of the y shackle, and its sides are solid, so that this socket is practically isolated from the interior of the lockcase or the mechanism contained therein, and no water is admitted to the case through this socket.
The socket f is open to thelock mechanismthat is to say, it has a hole, g, in which works the bolt h. To prevent the entrance of water to this socket f, and thence to the interior of the lock-case, I form a nipple, fi, at the outer end of such socket, and arrange upon the long arm d of the shackle a cap, j, which takes its place upon the nipple when the shackle is in an inner position, as shown, thereby closing the socket.
rEhe long arm d of the shackle is provided with a lateral socket, K, to receive the bolt h of the lock mechanism, which consists of the notched tumblers l, adapted to be displaced by a key, m, and work on pins n, arranged on the face of a plate, O, which is subjected to the action of a spring, z, having a tendency to hold the same in its locking position, and, further, of a projection, p, on the lock-case, corresponding to the notches ofthe tumblers,
and a spring-dog, g, acting on the tumblers. The dog q is mounted on a pivot, o, attached 5o to the plate O, while the bolt h is fastened to such plate by a pivot, w, so that this plate carries the major portion of the lock mechanism-namely, all excepting the projection p on the lock-case. Said plate O is joined atits lower end to the back of the lock-caseby a pivot, y, and when the proper key is inserted in the lock the tumhlers l are thereby pushed inward against the action of the dog q until their notches are in a position to engage the 6o projection p, when the plate O, with its attached parts, swings round on the pivot y against the action of the spring z, and the bolt h is retracted, so as to release the arm d of the shackle.
This lock mechanism is simple in its construction and readily applied to the lock.
By making the arms c d of different lengths the shackle may be moved out until the short arm c is withdrawn from its socket, and then 7o the shackle may be turned or swung around on the long arm to free the hasp or other object fastened by the lock, leaving the long arm in its socket.
4In the long arm d of the shackle is a groove, 7 5 one part of which extends in a longitudinal direction, as at r, While another part, at the lower end of the longitudinal part, extends transversely, as at s. -lnto this groove is iitted a stop-pin, t, secured to the lock-case,an d 8o as the shackle A is moved in or out this pin works in the part r of the groove and allows a sufcient movement of the shackle to complete the withdrawal of the short arm c from -its socket, while, when the shackle is in an outer position and is turned or swung around, as before stated, the pin enters the part s of the groove. In this manner the shackle A is allowed the required motion, but its detachment or complete withdrawal from the lock is 9o prevented.
The long arm el of the. shackle rests on a spiral spring, u, lying on the bottom of the socket f, and when the shackle A is pushed inward this spring is compressed, While when 9 5 the shackle is released from the lock mechanism it is moved or forced ont by the action of constructed and adapted to operate substan- Io the spring,` as far as the groove r and pin d allow.
In testimony that I claim the foregoing I What I claim as new, and desire to secure i have hereunto set my hand and seal this 9th 5 by Letters Patent, is-
'lhe combination, with the shackle A, of lock mechanism consisting of the bolt h, tumblers Z, spring-(log q, pivoted supporting-plate 0, and the projections p on the lock-ease, all
day of September, 1879.
JOSEPH. LOGH. [L. s.] Witnesses W. HAUFF,