US468113A

US468113A - Padlock

Info

Publication number: US468113A
Authority: US
Publication date: 1892-02-02
Anticipated expiration: 1909-02-02

Description

*(Model.)

R. J. MYERS.- PADLOGK.

No. 468,113. Patented Peb. 2,1892.

llllllillllmf 9 liO UNITED -STATns PATENT OFFICE.

REUBEN J. MYERS, OF MOUNT JOY, PENNSYLVANIA.

PADLOCK.

SPECIFICATION forming part of Letters Patent No. 468,113, dated February 2, 1892.

Application iiled July 28, 1891. Serial No. 400,925. (Model.)

To Cif/ZZ whom t 11i/ty concern:

Be it known that I, REUBEN J. MYERS, a citizen of the United States, residing at Mount Joy, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Padlocks, of which the following is a specification.

My present invention relates, in general, to that class of padlocks which are provided with a shackle hinged at one extremity to the housing with means for automatically throwing the free extremity of the shackle out of the housing when the shot-bolt of the lock is shifted by the key, and with suitable devices for automatically locking the free extremity of the shackle when the same is inserted into the housing; and it relates more particularly to certain improvements in the construction and mode of operation, of the means for automatically throwing the free extremity of the shackle ont of the housing, and to the arrangement and construction of the devices for automatically locking the free extremity of the shackle in closed position.

The principal objects of my present invention are, first, to provide a safe, eiiicient, durable, and comparatively inexpensive padlock; second, to reduce the number and simplify the construction of the working parts of such a lock, and, third, to construct and arrange the shot-bolt and locking-tumbler in such manner that the shot-bolt cannot become detached from the shackle by any concussion or blow on the exterior of the lock.

My invention consists of a padlock provided with a hinged shackle, a sliding shot-bolt provided with a recess or notch and adapted to engage the free extremity of the shackle, a 3

rotatable key for actuating the shot-bolt, and a spring-actuated sliding tumbler adapted to normally engage and detain the shot-bolt and interposed in range of the key, the construction being such that the tumbler is shifted into line with the recess or notch and releases the bolt when the key is rotated.

My invention further consists in the im? in connection with the accompanying drawings, forming part hereof, and in which- Figure l is a transverse section of a lock embodying features of my invention, showing d the spring-actuated sliding tumbler shifted i by the rotation of the key, and Fig. 4 isa section on the line 4. 4 of Fig. 1, showing a shotbolt provided with a recess, and a spring-actuated sliding tumbler adapted to normally vengage said shot-bolt, but susceptible of be-v ing shifted by the rotation of the key into "alignment with the recess to permit of the actuation of the shot-holt.

In the drawings, a is a two-part housing `whereof one part a is provided with pins a2,

c3, and a", and the other part with orifices a, engaging said pins. One extremity of a shackle b works in a recess a6, formed inthe housing a, and is pivotally connected with the pin a4. The free extremity of this shackle b is adapted to enter an orifice ci in the housing a..

as is a circular orifice provided with side wise projecting slots and formed in the housing a, in order to permit of the insertion of a l dat key c.

d and d are ribs cast or otherwise formed upon the interior side Walls of the housing a s and serving, together with the side walls of 'the housing, to constitute ways d2 and di, in which the traveler e and shotbolt f work.

o, are bridge-pieces which, together with the circular portion of the orifice as, forni bearings for the trunnions of aperforated i collar g. i

am are bearings cast or otherwise formed upon the interior of .the housing a and adapted for the reception of the pointed extremity of the key c.

a are slotted ways projecting from the interior of the part ct of the housing ct and adapted for the reception of trunnions h', connected with the tumblen 71,.

,slot b2, formed in the free extremity of the shackle l). The center portion of the shotbolt f is cut away so as to form a cavity f2;

Fig. 4, for the reception of the tumbler 7L and the key c.

f4 is a lug projecting from one of the side walls of the cavity fzinto range of the key c, so that the rotation of the latter tends to shift the shot-bolt f out of engagement with the free extremity of the shackle b.

f3 is arecess formed in the side Wall of the cavity f2 and adapted to receive the tumbler 7L when the latter is depressed by the rotation of the key c, so that the bolt f is released and may be shifted out of engagement with the shackle, it being understood that when the bolt is in engagement with the shackle the spring h2 causes the tumbler 7L to be shifted into engagement with the side wall of the cavl ity f2, thus preventing the bolt from being shifted by a jar or concussion on the exterior of the lock. The spring h2 may of. course be retained in position in a number of different ways. However, excellent results have been attained in practice by supporting` one extremity of the spring in a recess in the tumbler and the other extremity upon a stud or projection au, projecting from the part ct of the housing, as shown in Fig. 3. rlhe traveler e is provided with a lip e for closing the shackle-aperture a7 and serves, first, to throw the shackle h out of the lock,land, second, to engage With the shot-bolt after the shackle is Opened in order to retain the former in open position, as shown in Fig. 2.

s is a spring mounted upon the pin a3 and having one extremity s thereof in engagement with the shot-bolt and the other extremity s2 thereof in engagement With the traveler e, so as to cause the traveler e to be shifted normally into position for closing the shackle-aperture a7, and so as to cause the shot-bolt f to be shifted into engagement with the shackle b, it being understood, however, that the traveler normally det-ains the shot-bolt in open position, Fig. 2, until the free extremity of the shackle contacts with and depresses the traveler', whereupon the shot-bolt is released and enters the slot b2 in the shackleb. j

When the shackle b is in a closed position, as shown in Fig. l, the shot-boltf is in engagement with the slot b2 of the shackle and the traveler e is held in a depressed position by the extremity of the shackle. Moreover, the shot-boltf is positively held by the tumbler h, as shown in Fig. 4.

ln order to open the lock, a fiat key c is inserted through the aperture as and rotatable collar g, past the tumbler h and through the cavity f2 of the shot-bolt f until the pointed extremity of the key engages the bearlng d10, whereupon the key is rotated in the direction indicated by the arrow in Fig. 2, with v the result that one edge of the key shifts the tumbler h through the ways a and, against the force of the spring h2, out of engagement with the side wall of the cavity f2 and into alignment with the recess f3, so that the shotbolt f is released. At the same time the other edge of the key shifts the shot-bolt jagainst the force of the spring s', out of engagement with the shackle Z). As soon as the shackle is released and before a complete revolution of the key is made the traveler e throws the shackle out of the housing a., and during the completion of the remaining portion of the revolution of the key the traveler e engages the extremity of the shotbolt f and retains the same in open position, as shown in Fig. 2.

In order to relock the padlock, the shackle Z) is pushed into the housing a, and this motion of the shackle depresses the traveler e, and thus releases the shot-bolt f, which is automatically shifted by the spring s into engagement With the shackle, and this motion of the shot-bolt permits the spring h2 to shift the tumbler h in the ways all so as to engage the interior side Wall of the cavity f2, with the result that the shot-bolt is locked to place.

The key c cannot be inserted into the lock unless it is fitted to enter the oblong slot ag in the housing a, the oblong slot in the rotatable collar g, and the space between the tumbler 7L and Web @12. Moreover, the key c cannot be rotated unless it is provided With notches c in the respective edges thereof, adapted for the reception of the bearings of the collar g, and With similar notches c2, adapted for the reception of a rib h3 upon the tumbler 71 and semicircular projection or projections als upon the web al?, so that in manufacturing the hereinabove described locks in large quantities it is possible lto change the position, size, or number of the ribs upon the tumbler 7L and to provide keys with corresponding notches in the edges thereof. ln such case each key Will only open the lock to which it is especially itted, because if it were attempted to open a lock with a key that did not have notches adapted to accommodate the ribs on the tumbler the key would force the tumbler into contact with the projection a or with the part a of the housing, whereby the further rotation of the key would be prevented, and thus it would 4be impossible to shift the shot-bolt out of engagement with the shackle.

Having thus described the nature and objects of my present invention, what Iclaim as new, and desire to secure by Letters Patent,

1. Apadlock provided withahinged shackle, a sliding shot-bolt provided with a recess and IOS adapted to engage the free extremity of the shackle, a spring for shifting said lbolt into engagement with the shackle, a rotatable key for shifting the shotbolt out ot' engagement with the shackle, and a spring-actuated sliding tumbler adapted to normally engage the shotbolt and interposed in range ot' the key, the construction being such that the tumbler is shifted into line with the recess and releases the bolt when the key is rotated, substantially as and for the purposes set forth.

E2. ln a padlock, a shot-bolt having a cavity for the reception of a rotatable key, aprojection for engaging the key, and a recess, and a spring-actuated tumbler working in Ways and adapted to normally engage the side wall ot' said cavity and to be shifted into alignment with the recess, substantially as and for the purposes set forth.

3. A padlock provided with a two part housing united by pins, a shackle hinged to said housing, atraveler for throwing open the shackle and closing the shackle-aperture, a sliding shot-bolt forengaging the shackle, and a spring mounted on one of said pins and having one extremity in engagement with the shot-bolt and the other extremity in engagement with the traveler, substantially as and for the purposes set forth.

l. A padlock provided with a recessed shotbolt, and a spring-actuated tumbler having a ribbed face adapted to engage a correspondingly-notched k ey, theconstructionbeing such that the rotation of the key shifts the tumbler into line with the recess of the shot-bolt and permits ot' the actuation of the shotbolt,sub stantially as and for the purposes set forth.

5. A padlock provided with a housing, a recessed shot-bolt, ways connected with one side wall of'said housing, a spring-actuated tumbler having trunnions Working in said ways, and a web connected. with the other side of said housing and engaging said tumbler and recessed for the insertion of a key, substantially as and for the purposes set forth. i

G. A-padlock provided with ahousing having an aperture, a shot-bolt, a bridge-piece, a perforated rotatable collar supported by said aperture and bridge-piece, a tumbler working in suitable ways.and provided With a ribbed surface, a web, bearings, and a key provided with notches corresponding with said web and ribbed surface, substantially as and for the purposes set forth.

In witness whereof I have hereunto set my signature in the presence ot' two witnesses.

REUBEN J. MYERS. Witnesses:

A. B. SToUGHroN, THOMAS M. SMITH.