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Publication numberUS257086 A
Publication typeGrant
Publication dateApr 25, 1882
Publication numberUS 257086 A, US 257086A, US-A-257086, US257086 A, US257086A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 257086 A
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Description  (OCR text may contain errors)




SPECIFICATION forming part of Letters Patent No. 257,086, dated April 25, 1852.

Application filed February 28, 1882. (ModeL) To all whom it may concern:

Be it known that I, WILLIAM W. SIIALLUS, of Lancaster, in the county of Lancaster, and in the State of Pennsylvania, have invented certain new and useful Improvements in Padlocks; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

This invention relates to certain improvements in padlocks; and it has for its objects to prevent the shackle or hasp from being entirely withdrawn from the casing in unlocking, to provide an improved socket for the end of thekey, and to provide certain means whereby the tumblers may be fitted in the lock, as more fully hereinafter specified. These ob jects I attain by the means illustrated in the accompanying drawings, in which Figure 1 indicates a vertical sectional view of my improved look Fig. 2, a horizontal sectional view on the line a a; of Fig. 1, Fig. 3, an elevation of the shackle or hasp detached; Fig. 4, a detached view of the key, and Fig. 5 a detached view of the plate having the socket for the key detached.

The letter A indicates the casing or shell of the lock, which is elliptical in cross-section. The said casing or shell on the inside is provided with three vertical ribs, 13, instead of four, as usual, in order to permit the hook O at one corner of the plate D to enter the vertical groove E in the long shank of the hasp or shackle, and at the same time prevent it from turning. The said plate is provided with four lugs or projections, F, which serve to keep the tumbler G, which rests upon the plate, in proper position. The said tumbler is provided on its face adjacent to the plate I) with a central projection,H, which rests against theface of the plate I), and on its opposite face with a boss, I, having a socket, K, for the end of the key.

The letter L indicates the additional tumblers, which are similar in shape to the tum? bler G, with the exception that the central projection is omitted. Each is provided with a rectangular opening, through which the key may pass, and they are separated by means of plates M, similar in shape to the plate D, with the exception of the hook. The said plates are provided with lugs, which hold the tumblers in position to keep the central apertures in proper relative positions. The tumblers and plates are confined by means of a spring, P, which is held by a plate, R, provided with lugs S, which embrace the boss T on the inside of the cover of the casing to hold the said plate in place, so that its central aperture will be in line with the key-hole. The shanks of the shackle or bolt are provided with wards U for the tumblers, as indicated, and the long shank near its end is provided with an annular groove, V, from which extends the vertical groove on the said shank in such manner as to permit the shank to slide on the book 0,

as the shackle is withdrawn in unlocking, until the hook falls in the annular groove, when the longitudinal movement of the shank will be arrested, and the shackle will be held or swiveled, so that it can be freely turned in either direction.

By means of the socket-tumbler provided with the central projection provision is made for readily fitting the parts in the lock, which can bedone by filing 0r flattening down the projection.

By means of the socket the usual opening in the end of the key and the pin in the easing, forming a bearing therefor, may be dispensed with, materially reducing the cost of the lock.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

In combination with the casing A, provided with grooves B on its interior, the shackle having a longitudinal groove, E, and annular groove V, plate D, having hook O, tumbler Gr, provided with a boss, H, and recess I, tumblers L, adapted to work into the wards of the shackle, the intervening plates, spring P, and boss T at the key-hole, all arranged to operate substantially in the manner and for the purposes specified.

In testimony whereof I affix my signature, in presence of two witnesses, this 2d day of February, 1882.


Witnesses: I


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4883701 *Apr 29, 1988Nov 28, 1989Weyerhaeuser CompanyInfant car seat liner
US4885200 *Apr 29, 1988Dec 5, 1989Weyerhaeuser CompanyInfant car seat liner
US4900377 *Apr 29, 1988Feb 13, 1990Weyerhaeuser CompanyMethod of making a limited life pad
US5987940 *Oct 1, 1996Nov 23, 1999Chang; Kuo-ChouU-shaped lock
Cooperative ClassificationE05B67/24