US1308458A - Planoqkaph co - Google Patents

Description

H. G. VOIGHT.

PADLOGK.

APPLICATION FILED OCT. 12, I916.

Patented Judy 1,1919.

2 SHEETS-SHEET I.

WITNESSES: 62 J6 My? H. G. VOIGHT. PADLOCK.

APPLICATlON HLEDDCT. 12, 1916.

1,308,458. Patented July 1, 1919'.

2 SHEETS SHEET 2.

WITNESSES: 58 55 11v VENTOR.

ATTORNEY.

UNITED STATES PATENT OFFICE.

HENRY e. vorenr, oFNnw Bnrriun ONNNorioUT, AssIeN n T0 SARGLENT a COMPANY, on NEW HAVEN, CONNECTICUT; A CORPORATION OF CONNECTI- GUT.

PADLOCK.

Specification of Letters Patent.

Patented July 1,1919.

Application filed October 12, 1916. Serial No. 125,197.

To all whom it may concern:

Be it known that I, HENRY VoIcH'r, a citizen of the United States, residing in New Britain, county of Hartford, and State of Connecticut, have invented certain new and useful Improvements in Padlocks, of which the following is a full, clear, and exact description.

This invention relates to padlocks, and it has special reference to padlocks provided with mechanism for registering the actuations of the locking and unlocking mechanism.

The, invention relates moreparticularly to padlocks of the sliding shackle type, in which the shackle is locked and released by p111. tumbler look mechanism, but certain features of the invention may be found useful in padlocks of other types.

One of the primary objects of the invention is to provide a very simple, compact registering padlock which can be manufactured and assembled easily and at relatively low cost.

Another object of the invention is to pro vide a padlock in which a registering counter of the Veeder typeis located substantially in the same plane as the lock mechanism so that the flat shape of the padlock case can be retained in spite of (the provision of the registering mechanism.

To these and other ends,.the invention consists in the novel features and Combinations of parts to be hereinafter described and claimed.

In the accompanying drawings,

Figure 1 is a front elevation of my improved padlock, showing it applied to a freight car door;

Fig. 2 isa side elevation of the parts shown in Fig. l; i r

Fig. 3 is a top plan view of thepadlock; Fig. 4 is an elevation of the padlock, with the case removed;

Fig. 5 is a central section of the padlock, showing the same in the locked position;

Fig. 6 is a view similar to Fig. 5, showing the unlocked position Fig. 7 is a section on line77 of Fig dg Fig. 8 is a section on 1ine8-8 of Fig. 5; and. i t a Fig. 9 is a section on line 99 of Fig. 6.

My improved padlock is shown as having a flat elongated body 20 and a sliding U- shaped shackle 2 1 at one endof the body. a

At the opposite end is located the key plug 22 of suitable pin tumbler mechanism housed in the body, said key plug having the usual keyway for the insertion of a key 23, (Fig. 5.) The body 20 consists of a core member or cast1ng2 l and an inclosmg case or shell 25. The core or casting 24 serves as a mounting for the shackle 21, and it contains the mechanism. for locking and role-as ing the shackle,"and the mechanism for reg-. istering the actuations of the locking mechanism. i t

The core 24 has a long socket 26 extending from the top thereof nearly to the bot tom and accommodating the longer leg 27 of the shackle 21. A spring 28 coiled about the lower end of the leg 27 within said socket tends to push the shackle out of the padlock body. A relatively shallow socket 9.9, at the oppositeside, of theipadlock is adapted to accommodate the shorter leg 30 of the shackle. In the open position of the padlock, theshackleis thrust outward by the spring 28 to such all extent that the inner extremity 31 of the leg 30' will clear the upper end of the padlock body (Fig. 6).

so that the shackle is free to turn 011 the aXislof the longer leg, padlocks.

The key plug 22is mounted to turn within the lower part of the core 24:, and it cooperates in the usual manner with the spring pressed pin tumblers 32 mounted in the core. When the key plug is released and turned by the key, itreleases a shackle lockino member connectedwith the inner end of said plug. In the form shown, this shackle-locking member comprises a swinging dog 33, operating in a cut away portion 34: of the core, and located about midway of the length of thecore. The dog 33 carries at one end a post or extension 35 having a hook 36 atits upper end adapted to engage a lateral notch 37 in the, free extremity 31 of the shorter shackle leg so as to lock said leg inthe socket 529. At the opposite end the dog 33 is adapted to overlie a shoulder 38 at one side of a notch in the longer leg 27- so as to lock said leg against outward displacement Thus in the locked position of the shackle both legs are locked by the member .33. Supposing the parts to be in the locked position, when the key re turned, the opposite endsof the dog disengage the notches or cut away porlaterally tions of the respective shackle legs, and the shackle is thereupon thrust into the open position by'the spring 28. The dog is then held against return to the initial angular position by engagement with an uncut or unnotched part of the longer shackle leg, which uncut or unnotched part is located below shoulder 38 and lies opposite the dog when the shackle is thrust to its outer position by the spring, so that the dog is then blocked from being turned back to the initial position. When the shackle is again thrust inward, a spring 39 carried by the dog- 33 and reacting against the wall of the case 25 swings the dog back into the locking position as soon as it registers with the cooperating notches in the shackle legs so that it automatically locks the shackle when the latter is moved into the closed position.

The registering mechanism for registering the actuatio ns of the padlock is mounted in the cut away portion 34: of the core intermediate the dog 33 and the upper end of the core. This mechanism preferably comprises a registeringcounter of the Veeder type (note Patent No. 634,073, to C. H. Veeder), operatively connected with the longer leg of the shackle, but I do not wish to limit myself in this respect. In the particular form shown, a Veeder counter 40 is mounted in the cut away portion 34 of the core substantially in the plane of the lock mechanism with its glass covered window or sight opening 41 in registry with a suitable sight opening 42 in the front wall of the case 25 near the top of the padlock body. The counter comprises a plurality of number wheels mounted side by side on a common axis and inclosed in a small case, which may be advantageously secured in the core 24: of the padlock body by means of a lip 43 on the case, fitting a notch 4-1 in the core and secured in said notch by screws 45. The counter is preferably of approximately the same thickness as the core, and it is accommodated between the post or extension 35 and the longer leg of the shackle, the usual shaft 4:6 of the counter being extended out of the counter case at the end adjacent the longer shackle leg, and being provided with a cam47 to cooperate with said leg. When the shackle is in the open position, as shown in Fig. 6, the cam 47 engages at its lower surface 48 with the shoulder 38 of the shackle which cooperates with the locking dog 33, as previously eX- plained, This shoulder abuts against the lower surface of the cam, and as the shackle is thrust outward by the spring, the cam 47 is swung on its axis from the position shown in Fig. '8 to the position shown in Fig. 9, so as" to operate the counter shaft and thereby register the actuation of the padlock in an obvious manner. Further, the arrangement is such that when the counter is in position in the core, the cam prevents the shackle from moving outward beyond the proper releasing position. However, when it is desired to remove the shackle this can be readily done by taking the counter out of the core so that the same will no longer lie in the path of the shoulder 38, whereupon the shackle may be freely pulled out of the core. \Vhen the parts are all in the assembled position, the inward movement of the shackle, for the purpose of looking the padlock, causes a shoulder 4-9 on the shackle leg 27 to contact with the upper surface of the cam 47, and thereby to force the cam down into the position shown in Fig. 8, where it is in position to actuate the registering mechanism again the next time the shackle is released.

It will be understood that in the particular padlock shown, the registering mecha nism is actuated every time the shackle is released, but it is not actuated when the shackle is locked. I do not limit myself, however, to this particular feature.

The case or shell 25 is secured to the padlock by pins (not shown) passing through the case or shell and through suitable openings 50 (Fig. 5) in the core or casting 24.

My improved padlock is particularly intended for use on freight cars to aid in detecting and tracing theft of goods where the thief opens the padlock by means of a duplicate key or otherwise. As the padlock is usually located on the freight carat some distance above the track, I facilitate the inspection of the registering mechanism by giving the shackle 21 such a shape that the padlock hangs down at an angle to the wall of the car so as to exhibit the number registered by the counter to a person standing somewhat below the pa-dlock. In the particular case illustrated, the shackle of the padlock is bent or curved backwardly from the front face of the case, which is provided with the sight opening 42, so that when the padlock is suspended by means of the intermediate upper portion of the shackle, the outer face of the padlock, with which the registering mechanism is associated, extends downwardly and inwardly with respect to the wall of the freight car. In this way, the registering mechanism can be very readily seen by a railroad employee walking along the track.

Various changes may be made in the details of the construction without departing from the scope of the invention as defined in the claims.

What I claim is 1. In a padlock, the combination of a core, a shackle carried by the core at one end, pin tumbler lock mechanism housed in the core at the opposite end, a registering counter operated by said shackle for registering the actuations of the padlock, including a counter case set in a cut-away portion.

formed in the core between the lock mechanism and the shackle end of the core, and a shell inclosing the locking mechanism and the counter and having a sight opening through which the counter is visible; substantially as described.

2. In a padlock, the combination of a body, a shackle carried by said body at one end of the latter, pin tumbler lock mecha nism in the body having a locking element for said shackle, a counter located in the general plane of the body between said locking element and the shackle end of the body, and means for operating said counter by said shackle; substantially as described.

3. In a padlock, the combination of a body having registering mechanism therein and a sight opening in one face thereof through which said registering mechanism is visible, and a shackle at the upper end of the padlock body curved upwardly and backwardly, whereby the padlock when suspended by the intermediate part of the shackle hangs in an inclined position with the sight opening of the registering mechanism facing downwardly; substantially as described.

4. In a padlock, the combination of a body, a shackle at one end of the body, one of the legs of said shackle having, a notch formed therein, locking mechanism for said shackle, registering mechanism in the body lying centrally between the side walls thereof and having an operating shaft, and a cam on said shaft operated by the notch formed in the leg of the shackle, said cam being positioned to cooperate with said notch to limit the outward movement of the shackle;

. end of said body; substantially as described.

6. In a padlock, the combination of a body having registering mechanism visible at one side face thereof, and a shackle at the upper end of the padlock body extending backwardly, whereby the padlock when suspended by the intermediate part of the shackle hangs in an inclined position with the visible registering mechanism facing downwardly; substantially as described.

7. In a padlock, the combination of a body, a sliding shackle at one end of said body, a pin tumbler look at the opposite end thereof, a dog for securing said shackle in its locked position operated by said lock, and registering mechanism mounted in said body centrally between the side walls thereof and between said dog and the shackle end of said body; substantially as described.

In witness whereof, I have hereunto set my handon the 10th day of October, 1916.

HENRY G. VOIGHT.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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