US695347A - Padlock. - Google Patents

Description

No. 695.347. v Patented Mar. u, |902.

F. sum!t PADLGK.

(Application Bled June 11, 1900A (llo Model.)

UNTTED STnTns PlaTnnT Orrick.

FRANK SOLEY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE MILLER LOOK COMPANY, OE PHILADELPHIA, PENNSYLVANIA, A COR- PORATION OF PENNSYLVANIA.

PADLOCK.

srncrrlcnrrotr forming part of Letters Patent No. 695,347, dated March 11, 1902 Application tiled Juno Il, 1900. Serial No. 19,880. (No model.)

To aZZ whom t may concern/.-

Beit known that I, FRANK SOLEY, a citizen ofthe United States, residing in Philadelphia, Pennsylvania, have invented certainImprovements in Padlocks, of Which the following is a specification.

My invention relates to padlocks which have a sliding shackle'retained in the retracted position by engagement with a dog which is permitted to move out of engagement with the shackle when the tumblers controlling it have been properly adjusted by the key, the shackle being then projected by the action of a spring.`

One object of my invention is to so construct such a lock as to provide for a more extended movement than usual of the sliding shackle, thcrebyinsuring a larger opening for the passage of the staple in the application of the lock to or its removal from said staple, a further object being to improve the construction and action of the dog-controlling tumblers of the lock. These objects I attain in the manner hereinafter set forth, reference being had to the accompanying drawings, in which#- Figure 1 is a view of myimproved lock with the cap or cover plate removed and the shackle in the closed or retracted position. Fig. 2 is a similar view showing the shackle projected or in the open position. Fig. 3 is a transverse section on the line a a, Fig. 1. Fig. 4 is a view, partly in section and partly in plan, on the line bb, Fig. 1. Fig. 5 is a perspective View of the lock-casing with the cap or cover plate removed. Fig. 6 is a perspective View of the shackle. Fig. 7 is a perspective view of the retaining-dog and tumblers and their springs. Fig. 8 is a side view of one of the tumblers, and Fig. 9 is an enlarged sectional view of part of the lock-casing.

The casing 1 of the lock is in the present instance of circular external form with flat side and has at one point in its periphery a segmental recess 2 for the reception ofthe staple, the flat cover-plate 3 being `similarly shaped and having a like recess 4. The upper portion of the sliding shackle 5 has a segmental recess, which when the shackle is retracted conforms to the recess 2 of the casing and complctes the circle of which said recess is a segment, the nose (i of the shackle being seated j in a recess 7 in the lock-casing. The retaining-dog for engagement with the shackle to hold it in the retracted position is shown at S, this dog being pivoted Within the casing and havinga nose or stump for engaging with the notches of the tumblers 9, which are likewise pivoted within the casing and acted upon by springs 10, the tumblers being adjusted by meansof a key ll, introduced through the slot 12 in the casing.

So far as described the parts are all similar to those of padlocks of this character as lieretofore made; but usually the lower end ofthe dog S engages with a notch formed in the adjacent side ofthe sliding shackle and extending completely across the same, as it must in such case because of the Width of the dog, which is equal to that of the shackle. The objection to this method of construction is that it limits the sliding movement of the shackle, since the latter cannot be of such an extent as to carry the notch outwardly into line with the segmental rib 13, bounding the inner portion of the recess 2 in the lock-casing; otherwise the shackle could be tilted out of its proper position, and the parts thus deranged, so as to interfere with the proper operation of the lock. I therefore provide the back of the dog 8 with a projecting lug 14, as shown in Fig. '7, andI form in that side of the shackle 5 which is adjacent to the dog a recess or socket 15, as shown in Fig. 6, said recess When the shackle is retracted receiving the projection`14 on the dog and causing the latter to retain the shackle in the retracted position. The recess 15 is less in width than the shackle itself, so that it is flanked on both sides by walls 16, which bear upon the edge of the rib 13 when the recess15 is passing the same in the movements of projection or retraction of the shackle, and thus prevent any tilting or other objectionable derangement of the shackle during either of these movements. The back of the shackle bears against the edge of the outer segmental rim of the casing during said movements of projection and retraction, and further guidance of said shackle is provided for by a rib 18, projecting inwardly from the side of the cas- IOO ing 1 and engaging with a groove 19 formed in the adjacent side of the shackle, as shown in Fig. 6. The shackle is laterally conned between the cap' 3 and the segmental rib 2O on the edge of the recess 2 and straight ribs 21 on the inside of the casing, one of said ribs 2l having a rib 22 projecting therefrom at a right angle and having a segmental termination 23, said ribs 22 and 23 serving as lateral guides for the dog and tumblers. By reason of this construction the shackle is during movement rigidly guided and retained in proper position in respect to the lock-case and 'extended movement of the shackle is ypermitted, so that when the shackle is projected the space between the projecting nose 6 of the same and the periphery of the casing 1 is such as to permit of the passage of a staple of almost as large diameter as the diameter ofthe opening formed by the shackle and casing for the reception of said staple. Hence ample strength of staple is provided for and the lock tits snugly to said staple.

The spring 24, which projects the shackle, is a multiple-coil spring-that is to say, it comprises a large coil 25 and a series of smaller coils 26, disposed side by side. By this means considerable length of spring is obtained and the same has more uniform elasticity and is less likely to break in action than a single-coil spring. Moreover, the series of coils is of such lateral dimensions as to substantially iill the space between the lock-casing and cap, thus preventing lateral displacement of the spring on its supportingpin. One of the tumblers has a bevel instead of a notch for the reception of the nose of the shackle-retaining dog, such tumbler being represented at 9a in Fig. 8, and the spring 10, which acts upon this tumbler, is heavier than the springs lO, which act upon the remaining tumblers 9. The depression of the tumbler 9^'L causes its beveled face to act upon the nose of the dog 8 in order to force the projection 14 of said dog into the recess l5 of the shackle when the latter has been retracted,

and by stiffening or strengthening the spring 10, which acts upon said tumbler 9, sufficient power is obtained for thus moving the dog; but as the remaining tumblers are acted upon by light springs the resistance offered by the tumblers to adjustment by the key is not excessive. The spring 10L also acts upon the dog 8 to retract the same, so as to withdraw its projection 14 from engagement with the recess 15 of the shackle when the tumblers have been properly adjusted, and the nose of the dog is therefore free from the influence of the beveled face of the tumbler 9, but the latter projects the dog when said tumbler is permitted to descend, owing to the fact that it acts upon said dog at a point farther from the fulcrum of the same than that at which the spring 10a acts directly upon it. The projection of the shackle is arrested by contact of a projecting toe 27 thereon with a der reduced in diameter and swaged into a countersunk openingformed in the cap-plate, as shown in Fig. 9,-the opposite end of the pin being likewise swaged into a countersunk opening formed in the casing 1 of the lock. By this means the pin can before being compressed endwise, so as to upset or swage its ends, be introduced into the casing after the cap-plate has been secured in place and the shackle has been inserted, the upsetting of the ends of the pin serving to secure it in place in the lock and preventing it from being driven laterally from its proper position.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. The combination, in a padlock, of the casing having a sliding shackle, a retainingdog therefor, and dog-controlling tumblers, said dog having on the back a projecting lug less in width than the dog, and said shackle having in that face which is adjacent to the dog a recess less in width than the shackle for the reception of the projection of the dog whereby it is Hanked by walls for guiding it in its sliding movement, substantially as specified.

2. The combination, in a padlock, of a slid-A ing shackle With a casing having a flanged rim serving as one of the guides for the shackle, said shackle having in one of its faces, a recess or socket for engagement with a retaining element of the lock, said socket beingless in width than the shackle, whereby it is flanked by retaining-walls which bear upon the flanged rim of the casing and prevent the tilting of the shackle when the recess or socket of the same is in line with said iianged rim, substantially as specified.

3. The combination, in a padlock, of a casing, a sliding shackle, a locking-dog therefor, and dog-controlling tumblers, an elongated rib projecting inwardly from the side of said casing, and a guide-groove in the side of the' shackle into which said rib tits, substantially as described.

4. The combination, in a padlock, of the casing, the sliding shackle, the locking-dog therefor, and the dog-controlling tumblers, said casing havinginternally-projecting ribs for the guidance and lateral confinement of the shackle, locking-dog and tumblers, substantially as specified.

5. The combination, in a padlock, of the casing, the sliding shackle, the locking-dogl and the dogfcontrolling tumblers, one of said tumblers having a beveled recess whereby it is adapted to project the dog, and springs acting upon said tumblers, the springwhich acts upon the dog-projecting tumbler being heavier than the others, substantially as speci-` fied.

6. The combination, in a padlock, of the' IOS IIO

easing and its cover-plate, a sliding shackle In testimony whereof I have signed my having a. projecting stop-toe, and a transname to this specification in the presence of verse stop-pin having a shoulder bearing two subscribing witnesses.

against the cover-plate of the casing and hzw- FRANK SOLEY. 5 ing upset or swaged portions occupying ooun- Witnesses:

tersunk openings in the casing,r and cap, sub- FRED. W. CASSIDY,

stantizilly as specied. CHARLES E. LEVER.

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