US531902A - Permutation-lock - Google Patents

Description

No Model.)

B. BUNDY. PERMUTATION LOCK.

:amented Jan, 1,1895.

UNITED STATES PATEN BENJAMIN BUNDY, OF SABINA, OIIIO.

PERM UTATlON-LOCK.

SPECIFICATION forming part of Letters Patent No. 531,902, dated January l 1 895.

Application filed April 27, 1894. Serial No. 509,253. (No model.)

To all whom it may concern.-

Be it known that I, BENJAMIN BUNDY, a citizen of the United States, residing at Sabna, in the county of Clinton and State of Ohio, have invented certain new and useful Improvements in Combination-Locks; and I do hereby declare the following to be a full, clear, and exact description ot' the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in combination locks; and the object thereof is to provide a simple, edective and durable means for holding the bolt or locking device in a fixed position; and to provide certain registering devices or combinations which when arranged in some predetermined position will release a slide or plunger or other movable bolt-engaging device, but when not in this position will prevent movement of the anle, thereby rigidly holding the bolt of the Another object is to provide means for arranging the registering devices or combinations in any predetermined position.

A further object of my invention is to provide a bolt-holding device which upon the releasing of same from the bolt will simultaneously arrange the parts so that the combination may be readily changed.

lVith these and other objects in view the invention consists in the novel constructie n and combination of the several parts, as will be hereinafter more fully described, and particularly pointed out in the claims at the end of the description.

In the accompanying drawings, like letters of reference are used to designate like parts in the several figures.

Figure l is a front elevation of the lock. Fig. 2 is an end elevation. Fig. 3 is a vertical section on the line III-III of Fig. l, with the rear plate removed and showing the slide or plunger in elevation. Fig. 4 is a sectional plan on the line IV--IV of Fig. l. Fig. 5 is a rear elevation of the lock with the bolt and retaining plate removed to expose the working parts. Fig. 6 is a vertical sectional view on the line VI-VI of Fig. 7 illustrating a modification. Fig. 7 is a vertical sectional longitudinal view of the form shown in Fig.

l 6 with a bolt or hasp in connection therewith, l illustrating the parts in position for the withdrawal of the plunger for the removal of the hasp; and Fig. S is a vertical sectional fragmentary View on the line VIII-VIII of Fig. 7.

A designates a casing of any suitable construction having a removable plate a in the rear thereof and the plate ct' arranged within the casing; the latter plate being either separate from the casing or formed integrally therewith.

At B, B are the combination or registering devices which are preferably located on opposite sides of the center of the casing and provided With the handles or knobs b, b, the said knobs each having a spindle b' extending within the casing in which the said spindles may revolve. Near the inner end of each spindle is a notched wheel b2 rigidly secured to or formed integrally with said spindle. Surrounding the wheels b2 are the rings b3 each having a single slot b4 adapted to register with the notches of the wheels b2 by turning the knobs b, b, when the parts are in an unlocked position, at which time the slot of the ring and one of the notches of the Wheel -is in position to receive a pin b5, so that both wheel and ring may rotate in unison to lock the parts together as will presently appear. Surrounding the rings b3 and fitting into the casing is a suitably apertured plate b which apertures provide bearing surfaces for the peripheries of said rings when rotated as shown in Fig. 5. For retaining the working parts within the casing I provide aremovable apertured plate bl iu the apertures of which the inner ends of the spindle b, of the combination devices have a bearing.

C is the bolt or a similar locking device located between the removable plate 117 and the plate @of the easing between which said bolt is slidingly held. The bolt is held tixed or removable by the engagement of the end of the stem d of the slide or plunger D engaging an aperture c in said bolt. This plunger is preferably centrally located in the casing and between the oppositely arranged combination devices B, B. The plunger-is slidingly held in the casing and is provided with outwardly extending bifnrcated arms or projections CZ arranged on opposite sides of the stern of the plunger and adapted to register with the slots in the rings b3 when forced inwardly to engage the bolt, and to pass through the same when the stem is withdrawn from the bolt. The arms d have each a slot d2 something to larger than the thickness of the rings h3 so that when said slots register with the slotted rings, as shown in Fig. 4, the said rings may revolve throughthe slots ot' the arms to pre- Vent the plunger from being withdrawn from I5 the bolt. The arms d of the plunger further serve to carry the pins b5 out of engagement with the notched wheels and rings when the same are brought into alignment with the slots cl2 of the arms d for the purpose of zo withdrawing the plunger from the bolt to unlock the same and to change the combination if So desired, and to carry the pins to place the same in the slots of the rings h3 and notches of the wheels'b2 when theplunger is forced inz 5 wardly to engage the bolt as shown in full lines in Fig.4. The plunger-is further provided with a knob or handle cl3 on the outer end ofthe stem d for the purpose of readily operating said plunger and disengaging same from the aperture c of the bolt. To allow for the movement of the plunger, the plates hl, h6 and a', of the x casing have each a slot something larger than but formed similarly to the projecting arms d of the plunger to permit said plunger to slide, as shown in dotted lines in Fig. 4, but which prevents any rotary movement of the plunger. At dlis a slot in the front of the casing transversely arranged to the slots in which the plunger arms slide. This slot permits the 4o plunger and arms to be readily inserted within the casing and yet prevents its withdrawal when turned at an angle to said slot.

On the peripheries of the knobs h of the combination devices are arranged figures or other characters agreeing in number to the number of notches on the Wheels b2. These characters are adapted to register with a suitable pointer or indicator, such for instance as is indicated by the line e on the casing, so 5o that the combination may be set in any predetermined position by turning the knobs b. Other means, however, may be employed for this purpose if desired.

The parts being unlocked and the position of the knobs t) being determined as described and a notch in each wheel b2 brought into `alignment with the slots of the rings h3 and arms d of the plunger, it will be seen that by forcing the plunger inwardly from the uno locked position shown in dotted lines in Fig.

4 the end of the stem d will engage the aper- Y ture c of the bolt. This movement of the plunger places the pins b5, which are at this time carried by the bifurcated arms cl within the slots of the rings and in engagement with the registering notches of the Wheels Z22; the slots d2, of the arms also registering with said rings. By turning the knobs l) the Wheels h2 and the rings h3 will rotate together by the action of the pin b5, as best shown in Fig. 5. At this time the parts are locked, as the solid parts of the rings b3 which pass through the slots of the arms d', of the plunger will rigidly hold the same in engagement with the bolt, and yet allow the ring and wheels to re- Volve. By bringing the pins h5 into alignment with the slots d2 of the bifurcated arms, the plunger may be disengaged from the bolt and at the same time the pins b5 will be carried with thearms, as shown in dotted lines in Fig. 4. This will permit the notched wheels h2 to be rotated independently of the ring h3, thereby allowing the combination to be changed, if desired, by simply turning the knobs b.

I have not illustrated nor described any means for moving the holt C as it is obvious that any well-known means may be employed for this purpose.

I do not wish to confine myself to the exact construction shown for I may vary this in some instances without departing from the spirit of my invention.

The invention is not only applicable to locks having a sliding bolt, but to any form 9 of lock in which the locking device may be engaged by a sliding plunger.

In Figs. 6, 7 and 8 I have shown howa single or a series of combinations may be arranged around a stem f; the said stem being passed through central apertures of a single or a series ot' rings f. Slidingly held in a slot in the stemfis a plungerf2 having a series of slots corresponding to the number of combination devices arranged around the stem, each slot permitting the rotation of one of said combination devices when the same are in alignment with said slots. Each coinbination device has a ring f provided with a slot f3 which is adapted to register with the internal grooves or notches f4 of the annular inclosing casing F, (there being as many casings as there are rings) each casing being preferably separated by a washer f6 from the next adjacent casing, the said washer being preferably secured to the stem fand provided with a slot for the passage of the plunger-f2. The casings F have letters or gures stamped or otherwise formed upon their peripheries corresponding in number to the slots f4 of said casings, so that the combinations may be changed or set when the figures are arranged in some` predetermined position. These casings are rotatably held upon the rings f', but may rotate in unison therewith around the stem f when the pins f5 engage the notches of the casings F and the slots f3 of the ringsf as indicated in Fig. 6.

G is a hasp or other locking device having the enlarged ends g and g', the former havi oo sof

tenace ing a slot c2 for the endot the'plunger f2 to engage while the latter is provided with a T- shaped slot g3. This slot is so shaped that when the plunger is pulled in the direction indicated by the arrow the smaller portion of the plunger will register with the narrow portion of the slot g3 allowing the hasp to be removed, but when the plunger is in the position shown in Fig. 7, the enlarged portion g4 of the plunger f2, will engage the enlarged portion of the slot g3 at the same time that its end engages the slot in the end g of the hasp, thereby rigidly holding the hasp in a locked posit-ion. The operation of this form is similar to the operation of the form illustrated in the other views and dilters mainly from them in the arrangement of the parts.

It will be seen that by forcing the plunger inwardly the end 0f the same will engage the locking device G arranged in the path of movement of said plunger. This movement of the plunger places the pins f5, which are carried by the notches of the plunger, within the slots of the rings and in engagement with the registering notches of the casings F5 the slots of the plunger also registering with said rin gs. By turning the casings F to some predetermined position the rings f will rotate with the said casings by the action of the pins At this time the solid parts of the rings f which pass through the slots of the plunger will rigidly hold the same in engagement with the locking device, and yet will allow the casings and rings to revolve. By bring- .ing the pins f5 into alignment with the slots of the plunger, the same may be disengaged from the locking device, and at the same time the pins f5 will be carried with the plunger to the spaces between the casings or in alignment with the washers when used, which separate said casings. This will permit the casings F to be rotated independently of the rings f', thereby allowing the combination to be changed, if desired, by simply turning the casings.

I may arrange more than two combination devices around the plunger D, which would have a corresponding number of bifurcated arms; or l might arrange more than one set of notched wheels in each combination device it' so desired.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. A combination lock having alocking den vice, a movable plunger arranged to engage said locking device, a combination device arranged around the plunger, a loose pin arranged to be carried by the combination device when the bolt is in a locked position and be carried by the plunger before the plunger can be disengaged from the locking device, substantially as described.

2. A lock of the character described having a locking device, a plunger arranged to engage the locking device,combination devices arranged around the plunger, and means carried by the plunger for simultaneously arranging thepartsso that the combination may be changed when the plunger is disengaged from the locking device,substantially as described.

3. A lock of the character1 described having a casing and a locking device, a plunger held within the casing arranged to vallow or prevent movement of the locking device, combination devices surrounding the plunger and adapted to prevent any movement of said plunger except when in some predetermined position, and means operated by the plunger for permitting the combination to be changed, substantially als described.

4. Alock of the character described having a casing and a locking device within said casing, a plunger held within the casing and engaging said locking device, a combination device comprising a notched wheel and a ring having a slot therein located within said casing, the said ring adapted to rotate separately7 or in unison with the notched wheel to set or alter the combination, and means carried by the plunger for simultaneously arranging the parts to change said combination when the plunger is disengaged from the locking device, subst-antially as described.

5; A combination lockl having a casing and a locking device arranged within said casing, a plunger arranged to engage the locking device and having outwardly projecting bifurcated arms on the stem of the plunger, and means located within the casing for engaging said arms to prevent the pluugerfrom being disengaged from the locking device, substantially as described.

6. Aloclr ot' the character described having a casing and a locking bolt arranged to slide in said casing, a plunger slidingly held within the casing and engaging a portion of the locking bolt, the said plunger having outwardly extending bifurcated arms located on the stem of the plunger and adapted to move with same, a slotted ring arranged in the path of movement of the arms of the plunger, and a notched wheel rotatably held within the slotted ring, and means for rotating both ring and notched wheel in unison,the said slotted ring adapted to prevent or allow the bolt to be released from the plunger, substantially as described.

7. Alock of the, character described having a casing and a locking bolt arranged to slide in said casing, a plunger slidinglyheld within the casing adapted to engage an aperture in said locking bolt, the said plunger having outwardly extending bifu rcated arms located on the stem of the plunger, slotted rings located on opposite sides of the plunger and arranged in the path of movement of the arms of said plunger, a notched wheel rotatably held within each slotted ring, a pin adapted to be carried by each arm of the plunger and be placed by same in alignment IOO 5 a casing and a locking device Within said casing, a plunger slidngly held Wit-.hin thecasing, and adapted to engage the locking device, combination devices located within the C casing and. arranged around the plunger, a

ro removable plate arranged to retain the combination devices within the casing and means v for actuating said combinations, substantially as described. f

In testimony whereofI ax my signature in presence of two Witnesses.

BENJAMIN BUNDY.

Witnesses:

P. J. CURREN, J. W. SPURGEON.

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