USRE10440E - Indicator-padlock - Google Patents

Description

A. J ACKSON INDICATOR PADLOGK.

Ressufed Jan."29, 1884.

.| 1 Hllillllllllllllll 'UNITED SILAIESr PATENT @FF-ICE.

ANDREW JACKSON, OF sAN FRANCISCO, CALIFORNIA, ASSIGNOR OF TWO- THIRDS TO ALBERT R. FULLMAN AND MORRIS E. WARD, ROTH OF CHICAGO, ILLINOIS.

INDlCATOR-PADLOCK.

SPECIFICATION forming' part of Reissued Letters Patent No. 10,440, dated January 29, 18S/1. Original No.4 287,02S, dated October 22, 1863. Application for reissue filed January 4, 1884.

To all whomv it may concern: dogged by a bolt, d, secured to a rotatable o Be it known that I, ANDREW JACKSON, a plate, d', which is turned from without the citizen of the United States, residing at San casing c by the cylinder c, secured to said Francisco, county of San Francisco, State of plate. A series of 'set-pins, c, serve to posi- 5 California, have invented certain new and usetion the tumblers inclosed by cylinder c, so

ful Improvements in Indicator-Padlocks; and that bolt d may be thrown according to the I do hereby declare the following to be a full, particular combinations to which said tumclear, and exact description of the invention, blers are set. Around the inner rim of cassuficien't to enable others skilled in the art to ing a, at its rear side, a serewthread is cut,

IO make and use the same. 'f with which engages the threaded rim f4, pro- The invention consists, iirst, in combinjecting circumferentially from near the Outer 6o ing with the ordinary padlock mechanism inedge of the back plate, f. By means of said d-cator mechanism distinct therefrom but dethreaded rim the back plate, f, may be rmly tachably connected thereto, and provided with secured to or easily detached from casing a,

I5 means whereby the indicator mechanism may there being a cut-away portion, as at f5, to.

be operated by the shackle of the lock; and, said rim, which, when plat-ef is in position, secondly, it consists inproviding the indicator comes opposite to the opening in casing a, mechanism with means whereby it may be opthrough which the shackle b passes. If the erated by the free end ofthe lock-shackle. shackle be closed down and dogged by the 2O The invention also consists of sundry other lock-bolt d, it is plain that as shackle b rests details of construction to be hereinafter fully within the cut-awayf5 it serves as a stop or 7o described, and paiLticularly pointed out in the guard to prevent rimffrombeing unscrewed, claims. By this means the organization ofthe so that no clandestine removal of back plate, lock vproper remains intact and wholly disj', or tampering with the indicator mechanism 25 tinct from the indicator mechanism, so that mounted thereon can occur while the lock is this latter may be readily adapted as an atclosed. The end of shackle-bar b, when down, tachment to many of the usual forms of padimpinges upon the arm of a lever, e, pivoted lock without in the least modifying or disturbat c to back plate, f. A bent spring, c, seing the internal structure thereof'. cured to plate j' rests at one end upon the in- 3o In the accompanying drawings, which show ner side ofthe rim or iiange f4, and at its oppothe improvements applied toa combination, site end bears against a stud on lever e, thereby 8o lock, Figure l is a view in rear elevation, the forcing said lever upward and in position beback plate ofthe padlock upon which the inneath the cut-awayf to receive the thrust or dicator mechanism is mounted being removed; impact of the shackle-bar b when it is brought 35 Fig. 2, a similar view Withthe back plate and down to be dogged. Turning on a common attached indicator mechanism in position. arbor, h, on the outer side of platef is a se- Fig. 3 is aview of the reverse side of the back ries ot' indicator-wheels of different radius, plate from Fig. 2; Fig. 4, a top plan view of having letters, figures, or like symbols on` the completed padlock; Fig. 5, a view ofthe their marginal faces, and notched or detent .to reverse side of the retaining-pawls, and Fig. edges. The inner-wheels of the series have 6 a detached view of the back plate; Figs. spring-retaining pawls h2, which engage the 9o 7 and 8, detail views of the cap or cover to notchedrims of said wheels and prevent the the indicator mechanism. same from turning save at intervals, as here Within the shell or casing a, having the inafter described. The outer or larger wheel 45 usual shackle-bar, b, pivoted thereto, is arof the series has its detent edge in contact ranged any of the ordinary forms of lock with a spring-pawl, e2, pivoted, as at 6*, to a 95 mechanism, whether operated through interpin projecting from lever e through an elonvention 'of a key or otherwise. In the presgated slot in plate f. With ea'ch downward ent form, chosen for illustration, the shackle is thrust of the shackle-bar bin position to be secured by the lock-bolt, the lever e is turned about its pivot, so that pawl cf" advances the outer numbering-Wheel the space of one detent. At the end of one complete revolution of said Wheel the projecting pin i passes into engagement With the inclined slot or kerf i', cut in the under faces of retaining-pawl h2, lifting the paWl from out its notch and allowing the outer and the next smaller Wheel, h3, to move together by simple frictional contact. The pin clears the kerf in the throw of one detent, so that pawl h2 drops into the neXt notch of the series and holds the wheel 7b3 immovable pending another complete revolution of the next outer Wheel of the set. A like pin, i2, on the Wheel h3 performs the same function as just described in conjunction With the retaining-pawl h2 of the next smaller wheel 5 from all of which it is plain that in a set of three wheels, mounted as described, and having, for example, twenty-six characters around the margin of each Wheel, there Will be 26X 2G 26 changes before the same combination of symbols will recur. A cover, g, resting in a circular recess, f', of the plate f, and securely fastened thereto, as at f, protects the indicator mechanism from tampering, and through a slot, g', in the said cover allows the combination to which the indicator-Wheels are set when the lock is closed to be noted for future reference. It is manifest that this compact arrangement of the indicator-Wheels in superposed series brings it Within easy compass for attachment to any of the usual forms of padlock, and at the same time so multiplies the combinations of symbols, Which must pass before a second recurrence, as to make an unauthorized opening of the lool; Without vdetection practically impossible. The number of indicator-Wheels and of the symbols thereon may be varied, as desired. It will be remembered that casing g is effectually fastenedA to back platc,j`, so that no access to the indicator can be had, although the plate f is unscrewed from casing a. There may be a click, as usual, to prevent turning of outer Wheel, hf, save in one Way.

' Not limiting myself to the precise details hereinbefore set forth, and having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In au indicator-padlock, the combination, With the ordinary lock mechanism, of the indicator mechanism distinct therefrom, but detachably connected to the casing of the lock, and means, substantially as described, for operating lthe indicator mechanism, projecting within the path of the lock-shackle, whereby v 8. In an indicator-padlock, the lock-casing having mounted thereon indicator mechanism provided on its outer side with a series of Wheels, and upon its inner side with a lever for operating said Wheels, located in the path of the shackle, and so arranged with 'relation thereto that the action of closing the shackle will move the indicator mechanism, sub'stantially as described.

4. ln a padlock, an indicator mechanism consisting of a series of superposed Wheels having detent edges and suitable designatingcharacters on the faces thereof, in combination with mechanism, substantially as set forth, for operating the Wheels of the series each time the lool; is closed, substantially as described.`

5. The combination, with the shackle-bar b. of the indicator mechanism having the spring-lever c, the pawl ci, and the indicatorwheel, substantially as described.

In testimony whereof Witness my hand this 31st day of March, 1883.

ANDREWT JACKSON.

VWitnesses:

.Linus H. Pinson, Gno. P. FISHER, Jr.

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