US621992A

US621992A - Island

Info

Publication number: US621992A
Authority: US
Publication date: 1899-03-28
Anticipated expiration: 1916-03-28

Description

Patenfed Mar. 281 |899. J. H. CHRISTIE. PERMUTATIUN LOCK.

(Application mea Apr. rs, ms.)

(No Model.)

WZ'Z'NEEEE IINrre :STATES Price.

PATENT JOHN Il, CHRISTIE, OF EAS'I PROVIDENCE, RHODE ISLAND, ASSIGNOR OF A ONE-HALF 'TO JOHN H. CHURCH, OF SAME PLACE.

PERMuTATloN-LOCK.

SPECIFICATION forming part of Letters Patent No. 621,992, dated March 28, 1'899.

Application filed April 13, 1898. Serial No. 677,438. (No model.)

To all whom, it may concern:

Be it known that I, JOHN H. CHRISTIE, of-

ing is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, forming part of this speciication. y j

Thisinventionhas reference to an improvenient in padlocks in which the hasp is locked and unlocked by the partial rotation of one or more locking-disks.

The object of the invention is to facilitate the adjustment of the combinations controlling the opening of the lock and simplify its construction.

Figure 1 is a side View of the padlock. Fig. 2 is an edge View ofthe same. Fig. 3 is a side view of the open lock. Fig. 4 is a side View of the detachable side of the lock. Fig. 5 is a transverse sectional view of the lock. Fig. G is an end View of part of the detachable cover, showing one of the lockingflanges. Fig. 7 is a top view, partly in section, of the locking-bolt connected with the locking-arm of the hasp.

Similar numerals of reference indicate corresponding parts in all the figures.

In the drawings, 8 indicates the circular disk forming one side of the lock, 9 the circular rim forming the edge of the lock, and 10 a thumb-post extending through the side 8.

The disk 11, provided with the unlocking-recess 12, is secured to and turns with the thumb-post 10. The serrated disk 13 is centrally secured to the thumb-post 10 by the screw 14. It is provided with the segmental slots 15 15 and is secured to the disk 11 by two screws extending through the segmental slots. The serrated disk can be turned on the screw 14 and adjusted to the desired position When it is secured to the disk 11 by the screws extending through the segmental slots 15; 16, the unserrated portion of the periphery of the disk 13. The rim 9 is perforated to receive the stem 17 of the hasp 18 and also perforated to receive the dowel end 19 on the opposite side of the hasp 18. The spring 20, secured to the inside of the rim 9, is bent sharply at a right angle at its upper end. It bears on the unserrated portion 1G of the periphery of the disk 13, and when the disk 13 is turned the spring enters the serrations with a click that can be readily heard.

The lower end of the stem 17 of the hasp 18 is provided with the hook 2l, which engages With the hooked post 22, secured to the inside of the rim 9. The T-shaped lockingbolt 23 is connected with the stem 17 of the hasp by the link 23'. The T-shaped end of the locking-bolt 23 is supported by the pins 24 24, projecting inward from the rim 9. The pins 25 25, projecting inward from the rim 9, serve to secure the cover 26 to the rim 9.

The 'parts connected with the cover 26 are duplicates of the parts connected with the side 8 and consist of the thumb-post 10", the locking-disk 11', secured to the thumb-post and provided withl the unlocking-recess 12', the serrated disk 13', with the segmental slots 15', and the unserrated portion 16 of the periphery of the disk 13'. The spring 20 coperates with the serrated disk 13'.

From'the inside of the cover 26 project the lflanges 27, having on one end the hook 27', -each one of which may by the partial turning of the cover engage with one of the pins 25. One of these flanges 27 is provided with a locking-recess into which the projecting end 19 of the hasp 18 enters, and as long as the hasp is locked the cover cannot be removed.

The operation of the lock is as follows: As long as the T-shaped end of the locking-bolt 23 rides on the periphery of oneot the two disks 11 and 11' the bolt holds the stem 17 of the hasp 18 in the hooked and locked -position, (shown in Fig. 3,) and only when both of these disks are turned so that the T-shaped end of the locking-bolt 23 can enter the unlocking-recesses 12 and 12' sim ultaneously can the stem 17 be moved so as to disengage the hook 2l from the hook 22. When this is done, the hasp can be raised to remove the lock from the object to which it is secured, and, if desired, the cover 26 may be removed by partially turning the same. By adjustingthe serrated disks 13 and 13' any desired combination may be arrangedwhich will have to be known to open the lock. As shown in the drawings, the serrated disk 13 is adjusted so that the serration 8 is opposite the indexmark on the disk 11, while the serration 5 of ICO the serrated disk 13' is opposite the indexmark on the disk 1l. To open the lock so adjusted, the thumb-post 10 has to be turned in the direction indicated by arrows in Figs.

. 3 and l until the spring 20 has clicked eight times and the thumb-post l0 until the spring` 20 has clicked ive times, when the unlockinr-recesses 12 and l2' will be in wosition to D allow the bolt 23 to enter the same simultaneously and permit the nnhooliing and partial raising of the hasp.

Having' thus described my invention, I claim as new and desire to secure by Letters Patent- In a lock of the nature herein described, the combination with the two sides and the rim of the casing, a hasp having;` a long stem provided wit-h a hook at. one end and a short JOHN Il. CHRISTIE.

lVit nesses: I

D. M. Sums, J. A. MILLER, Jr.