US490428A

US490428A - Frederick egge

Info

Publication number: US490428A
Authority: US
Publication date: 1893-01-24
Anticipated expiration: 1910-01-24

Description

(No Model.)

I. EGGE. PAD'LOGK.

' No. 490,428. Patented Jan. 24, 1893.

WITNESSES: .INVENTOR @wdmw 59 7 BY I THE Nanms PETERS co. Pum'uuTygo WASHINGTON, u n.

TATES ATENT' FFICE FREDERICK EGGE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SMITH 85 EGGE MANUFACTURINGCOMPANY, OF SAME PLACE.

PAD LOCK.

SPECIFICATION forming part of Letters Patent No. $90,428, dated January 24, 1893. Application filed October 22,1892. Serial No. 449,658. (No model.)

8 are the usual gates in the tumblers, and 9 the key-hole through which a flat key may be inserted and forced against the tumblers to 50 bring the gates into alignment opposite to the part 3, whereby the latter will be driven by the action of the spring within said gates, thereby projecting the nose beyond the case and opening the look, as seen at Fig. 2.

The edges of the tumblers opposite the key slot are concaved, as shown at 11, in order that the key may be properly guided so as not to slip along said edges.

In the lock shown in said Letters Patent, the tumbler springs were made to perform two functions, namely, to preserve the normal position of the tumblers, and to throw open the shackle, but this has proved to bea serious disadvantage, for the ordinary tumbler springs became lifeless in a short time, and, on the other hand, when the springs are made heavier and stiffer, the force required to drive the tumblers with a small flat key so that their gates will align is so great as to seriously interfere with the sale of the lock. Moreover, the friction between the tumblers and the sliding shackle on which said tumblers are mounted offers an additional resistance which must be overcome by the springs.

In my present improvement, the shackle and tumblers are entirely independent and are provided with separate springs.

I claim;- 1. In a padlock the combination of the shackle consisting ofa single wire link open at one side and bow-shaped at both ends, the lower extremity of the wire at said opening being flattened, said shackle having a shoulder at itsback, the spring around said shackle if 4: is a shoulder rigid on the back of the and confined between said shoulder and the 1 4o shackle, and 5 acoil spring around that part case of the lock, and the tumblers provided of the shackle and confined between said \with springs which bear against thelock-case To all whom it may concern.-

Be it known that I, FREDERICK Econ, a citizen of theUnited States, residing at Bridgeport, in the county of Fairtield and State of Connecticut, have invented certain new and useful Improvements in Padlocks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it [0 appertains to make and use the same.

My invention relates to certain new and useful improvements in padlocks such as are shown and described in Letters Patent No. 278,229 issued to me May 22, 1883, the object 15 of my present invention being to simplify this look and to render it quicker in action and more durable.

In the accompanying drawings Figures 1 and 2 are interior plan views showing respect- :0 ively, the position of parts when locked and unlocked.

Similar numbers and letters denote like parts in both figures of the drawings.

1 is the case within which the parts are as- 25 sembled, and a, b, c, d, are rivets suitably located and secured within said case and by means of which the outer cover or shell (not shown) may be fastened to the case 1 in the usual manner. 3o 2 is the shackle which consists of a single wire link open at one side and bow-shaped at both ends, the lower extremity 3 of the wire at said opening being flattened for the j purpose presently explained. Thisshackle 35 extends throughout the case 1 and projects above and below the same as shown, and is capable of a sliding movement within suitable bearings in the side of the case.

shoulder and the side of the case, whereby and havinggates, said tumblers being pivthe nose 10 of the shackle is projected beoted within the lock-case independent of the yond the case. shackle, substantially as shown and set forth.

45 6 are the tumblers pivoted around the rivet 2. In a padlock, the combination with the a and having springs 7 which bear against pivoted and gated tumblers having springs the side of the case. which bear against the side of the lock-case,

of the shackle made from a single piece of In testimony whereof I afix mysignature in wire bow-shaped at both ends and open at presence of two Witnesses.

the front side, and an independent spring by which said shackle is actuated, the lower FREDERICK EGGE. 5 extremity of said Wire being flattened and adapted to enter the gates of the tumblers Vitnesses:

during unlockingsubstantially as shown and F. WV. SMITH,J1'.,

described.

J S. FINCH.