US1597560A - Padlock - Google Patents

Description

Aug; 24, 1926. A 1,597,560

A S.. w|-sE PADLOGK Filed April 4, i925 Patented Aug. 24, 1926.

NITED STATES SOLOMON WISE, OF CINCINNATI, OHIO.

rAnLocK.

Application led April 4, 1925. Serial No. 20,587.

My invention relates to padlocks, employing a type of construction shown in my Letters Patent or the United States No. 1,390,- 222, granted September 6th, 1921.

It is my object in this construction to provide a lock which is `formed without rivets, and built up essentially of a shell which is stamped around the lock parts after same are assembled in the shell.

It is my object to provide a lock in which the members within the shell are forced by a spring to a position oli closing therkey hole automatically, thereby requiring the shackle to be pressed into the lock for the key to be insertable. This sets up a diiiiculty against picking thevlock, and keeps moisture1 dust and dirt from getting in through the keyhole, and injuring the tubular tumblers and their springs.

Among other things I so build the lock that onceV the parts are in place and the metal of the shell crimped aroundthe plate that holds them there, the removal ot the plate from the bottom of the lock will not permit the shackle to be operated, without iii-st operating the plungers correctly, se that the lock is sufficiently secure without the bottom piece inserted.

I accomplish my objects by that certain construction and arrangement of parts to be hereinafter more specilically pointed out and claimed.

In the drawing:

Figure 1 is a central vertical section of the lock showing it close-d.

Figure 2 is a like view showing` it open.

Figure 3 is a side elevation of the lock.

Figure 4 is a section like Figures 1 and 2, showing the mode of assembly of the lock.

1 Figure 5 is a `bottom .plan view of the ock.

Figure 6 is an elevation of a key for the same, and

The shell of the lock, in the term illustrated, is formed up primarily as a hollow rectangular box 1 having a hole 2 torthe introduction oit' the anchored end of the shackle and a cup 3, irmly mounted in another hole and swe'dged into place, which receives the Jfree end'o'f the shackle.

Into the shell are set two die-cast blocks, one of which holds the shackleV and slides, and the other of which is fixed in place so that it can slide up and down a slight dis- Figure 7 is a perspective of the shackle tance only. The plungers operate between these two blocks. Thus I have shown the block 4, which has a hole 5 into which the one end of the shackle is introduced. A slot is formed in the block, so as to intersect the hole 5. A dog 6 having a biturcated end 7 is placed in said slot and engages the shackle.

The shackle 4- has a looped form, in the illustrated example, and its end to be anchored in the block 4, has a peripheral groove to be engaged by the biturcated end of the dog.

The block 4 has also a cylindrical hole 8 for the one set of tumblers, at the base 01" which hole is a short projecting central post 9, for a purpose to be described. The lower end of the block 4 has a hole 10 for a spring 11, said spring being for a purpose to be described.

The other block as illustrated at 12, is termed of a size to lit into the shell with a slight sliding relation, and arranged edge to edge with the block 4. The block 12 has a hole 13 for the other set oi':` tumblers and a key slot 14. There is also a key slot 15 in the sid-e ot the shell, said two slots being brought to register before the key can be inserted. i

The tumblers are in the form of concentricitelescoping tubes, intwo sets, as in my patent heretofore referred to. The tube set at 16 is locatedin the sliding block 4, with the inner tumbler being a solid pin 16ZL instead ol a tube. 4

tl/Vhen the lock is moved to unlocking positicn, the inner tumbler 16EL will strike the projection inthe base of the tumbler hole in the block 4, indicating to the operator` that the lock is ready to open, and preventing the tumblers from being moved too tary in by means of the key.

Each tumbler or, telescoping member, eX- cept the central one 16a has its spring, said` springs being indicated at 16', for the set 16. The tumbler set 16C in the fixed block 12 is so adapted that when the key is brought into engagement with them and' pressedhome that they will line up the plungers 16 evenly with edges'of block 4, thereby permitting the sliding block and with it the shackle to move to a position as illustrated in Figure 2 which releases the shackle at its free end, from engagement in the cup 3. f

Since the top of the lock is closed except for the shackle hole, and the cup (the latter being closed at the bottom), the lock parts must .be inserted from the other end. To permit this the shell is left open, with a suflicient flange 17 for swedging or crimping in after the lock is assembled.`

The act of' assembly is as follows Thetwo blocks, with the tumblers and springs in place, and with the dog 6' inplace, are brought together and thrust up into the shell.` The key is then employed toline up shifted by tap-ping against the shell to a.

` position part way out of the .slot Vin' the block 4, as also illustrated in Figure l. The shackle end. having the groove in it, is then thrust through the Itop ot the shell and into the hole in the block el, until it strikes the bottom thereof,,whereupon the dog is caused to slide back in the slot there- Y for to bring its biturcated -end into engagement with the groove in the shackle. Vhcn this has been done, Vthe blockL 1Q Ycan be pushed back up into place and will thereafter hold the dog and thus the shackle,

against removal. Y

The spring ll is then set into the hole therefor in the block l and' the bottomplate 20 is set up into the. expanded open end'of the shelh rllhe flange about this portion of the shell is then crimped in around the plate, forming a tight seal.

.Removal of the plate 20' will not release.'

the two blocks, since the shackle will...hold them in the shell. Removal of the cup 3 will not release the shackle if the shackle isV locked down, without breaking the whole shell away, or operating` the lock, itwill be impossible to release whatever object is held by the shackle.

The advantages of the concentric tumbler lock have been pointed out in mypatent.

llhechief one is that no amount of hammerlng or forcing will cause'them to g1ve'way since they form a solid mass -ofstrong mate.- rial which will have tobe sheared 'before it will give way, and since theresult of sharp blows will have no effect in setting up a releasing' alignment of the tumblers.

It should be noted that the efliect of the spring 1l will be two-fold, first tor push both blocks 4l and 12 up to the top of thershell, which is made slightly larger than the block 12' for this purpose. As a resultof this the key slot in the block 12 will be normally out of alignment with the slot in the Shel-.with the resultant advantages hitherto pointed out. Second the spring ll causes the shackle to jump to the openposition when the proper key is inserted.

The key as illustrated at `2lv will have a series of tines 22, to engage the tumblers. Due to the construction of the lock, the

key is symmetrical and may be inserted position again by a lug` 28, on the shacklei that has a clearance groove in the top of the lock casing (not shown).

Having thus described my invention, `what Iclaim as new and desireto secu-re by Let= ters Patent, is: y Y l l. A. padlock having a shackle, and a shell, a pair of, blocks within the shell,-,

sets of telescopingtuinblers held Within the blocks, and adapted when one set is actuated.

by aA key to set up a line o-tcleavage so that the blocks can slide with relation to each other, one of the blocks being relatively fixed and the other slidable, means fo-ranchoring the shackle intheblock kwhich is not fixed, said shell Vhaving an openingkk therein for introduction of the two ends ofthe shackle,

said means for. anchoring the shackle being held-in place by thevother block, throng-hf out the range of movement of the sliding block.

' 2. A vpadlock having a av case withan opening, at one end, a rela- `sha1y formed as tively fixed tumbler block, Yand -a movable; 1

tumbler block arranged-:within theshelil, a.

plate secured across the open end of the shell -v so as to enclose the same, aipair' of holes in the shell at the. other: end fromk the plate for the introduction of the two ends of the shackle and `means for revolubly holding Athe shackle permanently in the slidingblock, said means being heldin place by the relatively JXed block.

3. Apadlockhaving a shell Aformedas a case with an opening at one end, a relatively fixed tumbler block, and a-movable tum" bler block arranged within the shell, a platevk secured across the open end ofthe shell so Vas to enclose the same, a pair of holes .in

the shell at the other end from the plate for the introduction of the two ends ofthe shackle, and means `forvholding the shacklel permanently inthe slidingblock, said means being heldin placey by the relatively fixed block, said means comprising a forked-dog held slidably in the slidable block and enf gaging the shackle,A said fixed block being located so as to prevent sliding of said doge 4. A padlock having-a shell formed as aY case, openings for introduction of the two ends oit a shackle, a shackle, a pair of blocks having interengaging telescoping plungers therein, one of said blocks having a slight sliding movement in the shell, and the other a substantial sliding movement therein, a key slot in the slightly moving block, a key slot in the shell, whereby introduction and use ot a key Will arrange the plungers with a line of cleavage to release the substantially sliding block, and spring means impelling both blocks to a position when the lock is locked, ot the key slot in the one block out of line With the key slot in the shell, said shackle being anchored in the substantially sliding block, and passing out through the shell.

5. A padlock having a shell formed of a single piece of metal having an open end, and shackle introduced through a hole in the other end, a substantially liked and a sliding block Within the shell, interlocking` tumblers in the two blocks adapted to release the sliding block when brought by a key to a common plane of cleavage and a plate closing the open end of the lock, said plate being held in place by swedging in connection with the shell, said shackle being anchored in the sliding block, and an opening through the shell and the fixed block for introduction of the key.

6. A padlock having a shackle, a pair oi4 blocks having holes therein in Which are located telescoping plungers, a shell surrounding said blocks and holding one of f them against substantial movement While permitting the other to sl1de,'a key slot in the immovable block and the shell for insertion ot a key to establish a single plane of cleavage of the sets of plungers, thereby perlmitting' the other block to slide, and means for anchoring the shackle in vthe sliding block.

7. A padlock having a shell, a substantially liXed and a movable block Within the shell, said two blocks having a short movement When interlocked With each other, tumblers in the blocks adaptedto be brought to a single plane of cleavage by insertion of a key through the shell into the fixed block, but otherwise interlocking the blocks, a spring in the shell normally retaining the tivo blocks when interlocked in position to prevent insertion of a key into the iXed blocks, Vand a shackle retained in the movable block. y

8. A padlock having a shell, a substantially fixed block and a movable block Within the shell, tumblers in the blocks normally interlocking the blocks together, and adapted to be brought into a single plane of cleavage to release the blocks from each Y other by insertion of a key through the shell into the fixed block, a shackle, and means for anchoring the shackle in the movable block, said means being retained in place by the iXed block.

9. A padlock having a shackle, and a shell, a pair of blocks Within the shell, sets oit telescoping tumblers held Within the blocks, and adaptedV when one set is actuated. by a key to set up a line of cleavage s o that the blocks can slide with relation to each other, one of the blocks being fixed and the other slidable, means for anchoring the shackle in the block which is not fixed, said tumblers being provided as to the sliding block With a stop for one of them, atleast, limiting its inward movement under influence of a key to the correct line of cleavage.

SOLOMON WISE. i

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