US394119A - Permutation-padlock - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

B. KAUFFELD.

PERMUTATION PADLOGK.

No. 394,119. Patented Dec. 4, 1888.

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2 Sheets-Sheet; 2.,

(No Model.)

B. KAUPFELD.

PERMUTATION PADLOOK.

No. 394,119. Patented Dec; 4, 1888.

WITNESSES':

Amok/VH8.

UNITED STATES PATENT OFFICE.

ELIAS KAUFFELD, OF PITTSBL'RG, PENNSYLVANIA.

PERM UTATION-PADLOCK.

SPECIFICATION formingpart of Letters Patent No. 394,119, dated December 4, 1888.

Application filed March 30, 1888. Serial No. 268,986- (No model.)

To all whom it may concern:

Be it known that I, ELIAS KAUFFELD, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Permutation-Padlocks; and I do hereby declare the followingto hea full, clear, and exact description of the invention, reference being had to the accompanying drawings, which form part of this specification.

This invention has relation to combinationpadlocks, and has for its obj ect to provide a cheap and strong padlock in which the combination can be readily changed, and which will be incapable of being disarranged or getting out of order.

This invention therefore consists in the construction, combination, and arrangement of parts more fully described hereinafter, and specifically pointed out in the claims.

Referring to the accompanying drawings, Figure 1 is a vertical sectional, Fig. 2 a side, view of the lock. Fig. is a top view of a pair of the lockin g plates or disks; and Fig. 1 a detail view of a modification, partly in section.

A represents the lock-casing, which may have the sides and bottom made in a single piece, as a casting, or in any other desired and suitable manner, and it may be rectangular, or oblong, as shown, grooves a, a near the upper edge of the casing, being provided, into which a top plate, B, is fitted. A cover, C, having a depending flange, c, around its edge, completes the lock-case.

The working parts of the lock consist of a series of disks, D E, provided with holes d 6 through their centers, through which pass vertical shafts H I. The disks 1) and E are of the same circumference; but the disks D are double the thickness of E. The disks D are formed with recesses (Z (Z around the peripheries, while the disks E are provided with studs or sprockets e e, as shown, the sprockets e e coinciding with the recesses (Z d, and meshing therewith when the disks are in position upon their shafts. The disks E are formed with collars or bosses surrounding the central hole, said collars being of the same thickness as the disks, so that when a pair of the disks D E are in position on their respective shafts their upper surfaces will be in alignment, or

on a common level. The disks E are also provided each with a square opening, F, in their edges, and the disks I) have symbols or distinguishing-marks on their outer faces between each recess, letters, numbers, or other designs being depressed or engravedtherein.

A vertical slot in one of the inner sides of the casing is provided, into which fits a stem, G, which is formed with a rack or series of projecting studs, g, thereon, and a hook, g, at its upper end, a slot, P, in the opposite side of the case allowing access to the disks D and permitting them to be separately revolved on their shafts.

The shafts II I are supported in a plate, J, fitting in the bottom of the case, and into which the shafts may be screwed or otherwise fasten ed, their upper ends fitting into washers n n beneath the plate B.

The several parts are placed in position, as follows: The bottom plate, J, carrying the vertical shafts II I, is first placed in position in the case. The several disks D E are then placed in position on their respective shafts, the collars or bosses on the disks E being at their lower side, so that each boss or collar will rest upon the disk below it, the bottom one rest ing on the bottom plate, J, the washers n n being placed on the top of thelast plate. The disks are then revolved till the several openings I1 F are directly above one another. The stem G is then placed in position, a spring, 7r, fitting under its lower end and tending to force it upward. The plate 13 is slid into po sition and the top C placed over it, thus retaining the several parts in their proper position in the case. A screw-eye, L, passing through the top 0 and into the plate B, prevents the removal of either of them. The hasp M of the lock is hinged to the screw-eye L, and is formed with a hook, on, upon its free end, of such a size and shape as to interlock with the hook g upon the stem G.

The several parts being in their proper position, as described, the disks D D, &c., are revolved by pressing against their sides through the opening I in the side of the case, and with them the disks E E, till the several openings F F coincide, when the spring it forces the stem G upward, the studs g g thereon moving upward into the openings F F. The hasp M is shut down and pushed to one side till the hooks m g are locked together. The stem G is then pressed downward, and with it is drawn the hasp M, an opening in the top plate being provided for the reception of the end of the hasp. One or more of the disks D are then rotated, and the disks E rotating at the same time, the openings F are turned to one side, and the solid portion of the disks E, being over the teeth g g on the stem G,-hold the stem in position till the several openings are again placed in position directly above one another.

As it will be readily perceived that each pair of disks D E is capable of being rotated independently of any of the others, and that all the openings F F must be in alignment before the lock can be opened, it will be impossible to open the look without knowing the symbol to which each disk is set.

While I have herein described the plate B and the top 0 as being separate parts, I do not wish to confine myself to that exact construction, as they may be made, as shown in Fig. 4, in a single piece, and the screw-eye made of suflicient length to extend entirely through the same, and by impinging against one of the inner sides of the case prevent the removal of the top and the integral plate.

The setting of the combination of the lock is a very simple matter, as all that is necessary is to decide upon a given sign or symbol to which each disk is to be settor instance, if there are six sets of disks in the lock and it is desired to set the lock on the numbers 1, 2, 3, 4, 5, 6, the first disk, E, is placed in position upon its shaft, with the opening F in position to allow the stem G to move up or down. Its corresponding disk, D, is then placed in position with the number or sign 6 showing through the slot in the case. Theother disks are placed in like manner, the desired sign or number appearing through the slot on each disk. hen all the disks are in their proper position, the numbers 1, 2, 3, 4, 5, 6 will show through the slots and the several openings F F will be directly above one another, thus permitting the stem G to move up or down; but if one of the disks D is turned so that the correct sign or number does not show through the slot the stem G will be locked, and it cannot be released till the disk is placed in its correct position.

\Vhat I claim as new is 1. In a combination-padlock, the combination, with a series of disks or plates having recesses in their peripheries and distinguishing letters or symbols between said recesses, of a series of toothed disks, each having an opening in its side, said series of recessed disks and toothed disks intermeshing in pairs, whereby when certain signs or words are formed by the letters or symbols on the series of disks the recesses in the toothed disks will be in alignment one above the other, as set forth.

2. In a combination-padlock, the combination, with the case A, having sliding plate B and top 0, of the screw-eye L, passing through the top 0 and into the plate B, and hasp M, attached to said screw-eye, whereby the top and sliding plate are held in position and cannot be removed while the hasp is locked, as set forth.

3. In a combination-padlock, the combination, with the case A, the series of intermeshing disks D E, mounted on parallel shafts, and the vertical toothed stem G, having hook g on its upper end, of the hinged hasp M, having hook on its free end, whereby when said hasp and stem are interlocked and said stem pressed downward and one or more of the disks rotated the hasp will be locked, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this 22d day of March, 1888.

' ELIAS KAUFFELD.

Vitnesses:

H. C. EVERT, LoUIs MOESER.

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