|Publication number||US100402 A|
|Publication date||Mar 1, 1870|
|Publication number||US 100402 A, US 100402A, US-A-100402, US100402 A, US100402A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (17)|
|External Links: USPTO, USPTO Assignment, Espacenet|
LvoUIs` HILLEBRAND,4 or PHILADELPH'IA, PnNNsrLvANIA- Letters Patent No. 100,402, dated Ma/rch- 1, 1870.
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" The Schedule referred to inthese Lettera Patent and part of the same.
To all` whom it may concern y.. n
Be it known that I, Louis H ILLnBR-AND, ot' the cityand county of Philadelphia, and State of Pennsylvania, have invented new and useful Improve-V ments inf Padlocks; `and `Ido hereby declare the following to bea clear and exact description of the nature fthereosucient to enable othersv skilled in the art to which my invention appertains, to fully understand and use the same, reference being" had to the accompanying drawings making part ofthis specication, in which- Figure 1 is a. view of my improved padlock, -when locked, the outer plate being removed, to'show the i position ofthe locking parts. v i p Figure 2 is a similar view when unlocked.
4 Figures 3,-4,l5,1and 6` are detached views of parts of my improved padlock.
Like letters lof reference indicate like `parts in the' several figures.
f'lhis invention lconsists'in a shackle, pivoted centrally at VIthe bottom of the casing, and moving between the `plates comprising the casing, .so as to leave it entire, and a solid arm cast or formed with the said shackle, which arm `projects into the casing, and is the locking medium;
It also consistsiny tumblers, hingedto the same axis as the shackle.
In the drawingse l a represents the easing, from one side of which rises a stationary standard,`b, having on its inner` side `a socket, c,-into` which enters the nose d of a shackle, e, which is hinged centrally at the bottom of'the\casing, having a pin, f, for its fnlcrnm or axis. j
Between the nose d and the fulcruln of the shackle,
is caston the shacklean ar1n,`g, in such a manuel" thatwhen the shackle is forced back, on opening the lock, the arml g never leaves the casing, and thus prevents the bolt h from moving upwardly, while the nose of the shackle is out of the socket c.
llie shackle, with `its nose, arm, andv fulcrum, is clearly shown in fig.` 3.` .i
The bolt h,showu fig. 4, consists of a plate,` provided with an elliptical opening, iinto which ex-` tends a projection, j, forming a shoulder, against which the lower bits la, of the key l, iig. 6, bear to depress the bolt in opening the lock. Y
At the Aupperend there are formed on the surface ofthe bolt-plate two projections, my, leaving a space l between them, into which the point or points n, of
`one or more tumblers, o, passes, when the bolt is drawn down. Y I c .This tumblero is pivoted ou the axis of the shackle e, and is held in an inclinedposition toward the bolt,
when the lockis closed, by means of a spring, p, attached with one end to the tumblery and bearing with the otheragainst one of the walls g, between which vthe bolt h slides vertically, and which afford an additional security in the protection of the bolt.
Between the tumbler and thc bolt isla stationary plate, of a thickness to correspond with the distance between the bits k and'fr, onA the key l, the latter of which move the tumbler from an inclined to a ver tical position, to allow the point n to enter between the projections on, and thus leave the bolt free to descend. e
`0n the .inside of the casing'is formed a pin, s,
, which is the pivot of a spring, one arm, t, of which extends upwardly and bears against the inner end of shackle-arm g, while its other arm, u, bears against the under side of theI bolt, keepingjit in a raisedV position. l
On the standardb of casing a, and on each wall g, are pins, wh-ich, withahe pin j, form the rivets for the cover, which closes the lock `and covers the working parts. f
The operation ofthe lock is as follows rlhe'key l, being inserted in the key-hole in the covering-plate, passes through the tumbler, the plate between the tumbler and bolt, so that the hits k bear against the sides of the opening i, and the bits r against the sides of the opening in `the tumbler. j
On turning the key, thek bit k, bearing against the shoulder j, depresses the bolt h, while at the same time the bit r moves the tumbler o, into a vertical key, the lprojection m is removed from Contact with` Althe shackle-arm, the bent part g of which can then p pass over the projections m, being forced `back by arm t of the spring, I(the arm u being depressed Vat the saine time, to allow the bolt to descend,)
thus forcing the nose d out' of the socket c, the shackle-arm being, during its entire motion, within the casing.
In locking the device, the shackle-arm g passes over the projections m, and forces back the spring t, which presses the spring-arm u against the under side of thel bolt, which is, however, raised only after the nose d has entered the socket c, and'after thel .bent part gf of the shackle-arm has passed over the projections m. l y
Having thus described my invention,
What I claim as new, and desire to secure by Letthe same axis with the shackle, substantially as and ters Patent, is for the purpose set forth.
1. The shackle e, pivoted centrally at the bottom The above signed by me this 4th day of February, of the lock-casing, and moving between the plates of 1870.
the casing independently thereof, so as to leave said LOUIS HILL'EBRAND. casing entire, inconnection wit-b the solid arm g, prol jecting into the casing, substantially as and for the Witnesses:
purpose described. JOHN A. WmnERsHEI-M,
2. A padlock, the tumblers of which are hinged on FRANCIS KEYSER.
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