US1376639A - Permutation-padlock - Google Patents

Description

E. E. QUAINTANCE.

PERMUTATION PADLOCK. APPLICATION FILE!) JAN-13,, 1920.

Patented May 3, 1921.

2 SHEETS-SHEET I.

E. E. QUAINTANCE. PERMUTATION PADLQCK.

, APPLICATION FILED JAN-1 3, 1920. 1,376,639. Patented May 3, 1921.

2 SHEETSQ-SHEET 2.

UNITED STATES PATENT OFFICE.

ELLSWORTH E. QUAINTANCE, 01? DENVER, COLORADO, ASSIGNOR TO THE QUAINT I MANUFACTURING COMPANY, OF DENVER, COLORADO, A. CORPORATION OF COLORADO.

PERMUTATION-PADLOCK.

Specification of Letters Patent.

Patented May 3, 1921.

-Application filed January 13, 1920. Serial No. 351,137.

To aZZ whom it may concern Be it known that I, ELLswonTri E. QUArN- TANOE, a. citizen of the United States, residing at the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Permutation-Padlocks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the characters of reference marked theron, which form a part of this specification. I r

The object of this invention is to provide a padlock, controlled by permutation devices, instead of by a key, which it is practically impossible to pick.

Briefly, the invention comprises a framework which has a bail hinged thereto and carries permutation devices controlling a bolt. The bolt is positioned in the framowork in order to engage the free end of the bail. The bolt is operated by means of a trigger projecting beyond the framework, and the trigger also operates two pallet members, one of which has slight movement with respect to the other and also with re spect to the bolt, while said other pallet member is movable only with the bolt. The first, or movable, pallet member is used to lock the permutation devices when the combination is not set to open the lock, there by preventing an unauthorized person from feeling the position of the tumblers in an attempt to pick the lock.

In the drawings:

Figure 1 is a side elevation of the lock in closed position.

Fig. 2 is a horizontal section on the line 22, of Fig. 1.

Fig. 3 is a vertical section through the lock, as indicated by line 33 of Fig. 2, that is, looking in a direction opposite to that of Fig. 1.

Figs. 4 and .5 are horizontal sections taken on the lines 4-4 and 5-5, respectively, of Fig. 3. V e V Fig. 6 is a view similar to that of Fig. 3, with the exception that the independently movable pallet member is shown in position on the lines 7-7 and 88, respectively, of Fig. 6.

Fig. 9 is a view similar to thatof Figs. 3 and 6, with the exception that the parts are in unlocked position. This view is taken on line 99 of Fig. 10.

Figs. 10 and 11 are horizontal sections on lines 10-10 and 11-11, respectively, of Fig. 9. v

Fig. 12 shows the framework with the permutation parts removed therefrom.

' Fig. 13 is a view showing said permutation parts after removal, the cap thereof be ing lifted from operative position. Fig. 14 is a fragmentary, vertical section ndicated by the line 1414 of Fig. 2, showpig the cap elevated from operative posiion.

The lock framework comprises a bottom 18 and side members 20. The bottom is constructed in general in the form of a circle to provide a pocket 21 to receive the lower end of the permutation mechanism. The upper portions of the side members 20 are connected by means of a circular housing 22, in which the upper end of the permutation device is housed. By this construction the entire permutation structure may be removed from theframework. A bail 23 is pivoted at 24 to the upper portion of the framework, while its free end is provided with a bolt-receiving notch 25, for locking the bail in closed position. The side of the housing 22 is provided with a wide slot 26, communicating with a long narrow slot 27. A trigger 45, hereinafter described, operates in the slot 27, while an extension 28 on the cap 29 fits inthe slot 26. The bail 23 is 4 moval of the cap 29 when the lock is closed.

The permutation structure comprises a circular bolt-receiving member 35, and a plurality of rotary tumblers or shells 36, which are arranged in-pairs, the pairs being spaced by means of a washer 37, as shown. The bottom of the permutation structure comprises a cylindrical retainer 38. The member 35 is rigidly secured to the upper end of a cylindrical core 40. The tumblers 36 are mounted upon this core and rotatable i thereabout. The retainer 38 is provided with a crossbar 41, adapted to enter bayonet slots 42, formed in the core 40 for the purpose of retaining the tumblers 36 upon the core.

A trigger 45, having a milled end projecting from the housing 22 and the boltreceiving member 35,'is pivoted upon a pm 46, which extends into the base of the mem ber 35 and also upward into the cap,29 (Fig. 14). A bolt 47 is slidable transversely in a runway formed in the base of the member 35, andcarries two pallets 48 and 49. The pallet 48 directly controls the movement of the bolt and is movable only with the bolt. The pallet 49 also extends through the bolt 47 but has a limited movement in the bolt and independently thereof. The middle portion of the top ofeach of the pallets 48 and 49 is cut out as indicatedat 50 (Fig. 7 to receive the. trigger. The tr1gger is provided with a projecting reduced tongue 52, for operation of the pallet 48, and with a heel 51, for operation of the pallet 49, the heel 51 being adapted to engage the upstandim shoulder 449, of the pallet 49, andthe tongue 52 being adapted to engage the corresponding upstanding shoulder of the pallet 48. The heel 51 is designed to avoid engagement with the pallet 48 entirely, so that the pallet 49 may have limited motion imparted thereto by said heel 51, as indicated in Fig. 7, withoutaifecting the position of the pallet 48. The cap 29 seats in the cylindrical member 35, the

projection 28 resting in notch 126 therein, while trigger 45 projects through the slot 127, which communicates with notch 126 and corresponds with notch 27 in housing 22. The movement of pallet 49 in bolt 47 is permitted by notch 249 in said pallet 49, as indicated by dotted lines in Fig. 3.

After the permutation devices are in unlocked position the tongue 52 when it engages the pallet 48 will move it until it is even with the pallet 49, whereupon the tongue 52 will then move both pallets together with the bolt to release the bail..

The foregoing covers substantially the in-. vention of this application.

The permutation devices are covered in my Patent No. 1,027,564, dated May 28th, 1912. However, in order that the operation may be clear, a limited description of these permutationdevices follows:

Each tumbler or shell 36 has a transverse bottom perforated to receive the core 40. Upon this bottom there bears a disk 55, having a single radially disposed slot 56. Mounted upon the disk 55 is a second disk 57, having a plurality of radially disposed slots 58. The open ends of each pair of tumblers 36 are directed toward each other, and a spaced member 60 is non-rotatably mount ed upon the core 40 and between the disks 57 to retain the parts in operative position, Each spacing member 60 is provided with a pair of spring-pressed click balls 61, adapted to engage in these slots 58 of the disks 57. Each spacing member 60 is provided with a slot at one side for the passage of the pallet members 48 and 49, and the core 40 is also provided with an elongated slot for the passage of the members 48 and '49. The pallet member 48 is provided with notches 148, which have a width suflicient only to pass the bottoms of the tumblers 36. The pallet member 49 has a plurality of notches 149, which are of sufiicient width to pass both the bottoms of the tumblers 36 and the disks 55. Thus, at any position when the click balls 61 engage in the slots 58, the pallet member 49 may be projected by means of the heel 51 of the trigger 45 Into certain of said slots 58. But the allet member 48 can be moved only when al of the disks-55 are so positioned that their respective single slots 56 are in alinement and in position to receive the pallet 48. Thus, when the slots 56 are not in pro-per position and the trigger45 is moved, the pallet 49 will enter the notches 48 and prevent rotation of the tumblers. Under this condition, it is impossible for an unauthorized person to detect when the pallet 48 would fall into the notch 56 of any tumbler; but when the slots 56 are properly positioned, the tongue 52 will retract the pallet 48 also, and carry withit the bolt 47 to release the bail 23.

I claim:

1. A look, comprising a pair of pallets, permutation devices to control said pallets, a boltin which said pallets are mounted, one pallet and said bolt having'movement in unison while the other pallet has a limited movement independent of the bolt, a trigger engaging said pallets and adaptedto move said other pallet independently of the bolt initially and then tomove both pallets and the bolt simultaneously.

2. A look, comprising a pair of pallets, permutation devices to control said pallets,

a bolt in which said pallets are mounted,

one pallet and said bolt having movement in unison while the other pallet has a limited movement independent of the bolt, a trigger engaging said palletsandadapted to move said other pallet independently of the bolt initially and then to move both pellets and A the bolt simultaneously, said pallets having notches therein to receive-the trigger, and

said trigger having a tongue and a heel, the

including permutation devices having ma nipulating portions exposed, a pallet con.- trolled by said permutation devices, a ,bolt

in the upper part' of the structure movable I with said pallet and into engagement with the free end of said bail, a trigger projecting from said structure and frame and having operative engagement with said bolt and pallet and a second pallet having limited movement independently of the bolt and adapted to have said limited movement imparted by said trigger.

4. A permutation padlock, comprising a frame, a bail hinged to said frame, a permutation structure mounted in said frame and including permutation devices having manipulating portions exposed, a pallet controlled by said permutation devices, a bolt in the upper part of the structure movable with said pallet and into engagement with the free end of said bail, a trigger projecting from said structure and frame and having operative engagement with said bolt and pallet, said structure having a cap in the top thereof for retaining said trigger, and a foot on said bail to prevent removal of said cap when the bail is locked.

5. A permutation padlock comprising a frame, a bail hinged to said frame and having its free end adapted to enter a portion of the frame, a permutation structure mounted in said frame, including permutation devices having manipulating portions exposed, a pair of pallets controlled by said permutation devlces, a bolt movable into engagement with said bail and in whichsaid pallets are mounted, one pallet being movable in unison with the bolt while the other pallet has a limited movement independent of said bolt and said one pallet, a trigger projecting from said structure and frame and having engagement with said pallets to move the same and said bolt, said trig er having a heel to engage said other pa let only for imparting said limited movement, and said trigger having a projecting portion to impart movement to the other pallet for moving said bolt.

6. A permutation padlock comprising a frame, a bail hinged to said frame and having its free end adapted to enter a portion of the frame, a permutation structure mounted in said frame including permutation devices having manipulating portions exposed, a pair of pallets controlled by said permutation devices, a bolt movable into engagement with said bail and in which said pallets are mounted, one pallet being movable in unison with the bolt while the other pallet has a limited movement independent of said bolt and said one pallet, a trigger projecting from said structure and frame and having engagement with said pallets to move the same and said bolt, said trigger having a heel to engage said other pallet only for imparting said limited movement, said trigger having a projecting portion to impart movement to the other pallet for moving said bolt, said structure having a cap in the top thereof for retaining said trigger, and a foot on said bail to prevent removal of said cap when the bail is locked.

In testimony whereof I affix my signature.

ELLSWORTH E. QUAINTANOE.

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