US397893A - Combination-lock - Google Patents

Description

(ModeL) 2 SheetsSheet 1.

' H. 0. BROWN, J1.-

GOMBINATION LOOK. No. 397,893. Patented Feb. 19, 1889.

(Model.) '2 Sheets-Sheet 2.

H. 0. BROWN. Jr.

COMBINATION LOCK.

No. 397,893. Patented Feb 19, 1889.

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FFTCEa PATENT HENRY O. BROlVN, JR, OF BROOKLYN, NElV YORK.

COMBINATION-LOCK.

SPECIFICATION forming part of Letters Patent No. 397,893, dated February 19, 1889.

Application filed January 6, 1888. Serial No. 260,018. (Modeh) To aZZ 107mm, it may concern:

Be it known that I, HENRY (3. BROWN, Jr., of the city of Brooklyn, county of Kings, and State of New York, have in vented certain new and useful Improvements in Combination- Locks; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, and to th e letters of reference marked there-on, like letters indicating like parts wherever they occur.

My invention relates to combination-locks; and it consists in constructing the lock in such a manner that the tumblers have a backward and forward or lateral motion, and are projected forward and withdrawn by means of a tongue or arm attached to and fixed in a spindle connected with and turned by means of a thumb-piece or dial operating in unequal and irregular openings in the tumblers.

To enable others skilled in the art to construct and use my invention, the following description is given.

Figure 1 shows the lock with all its parts in their proper places. Fig. 2 shows the lock with the thin plate or cap Z) removed. Fig. 3 shows the lock with the cover a and guardplate 0 removed and all its tumblers in their proper places when the dog m is drawn back. Fig. 4 shows a sectional view'of the lock at a line drawn through the center of the spindle. Fig. 5 shows the various part-s of the lock taken apart and disconnected.

The guard-plates c and h hold the dog m in position by means of the pivot or pin a. The pin a is fixed or fastened in the guard-plate h and passes through the end of the dog m, and the other end of the pin a is held in the guardplate 0, and d e f g are the tumblers, separated by the packing or washers, respectively marked 2'. The tumblers d e fg are projected and withdrawn by mean s of the arm 1', attached to and passing through the spindle I, as shown in Fig. 4. The arm 1 is fastened in the spindle Z by means of the keeper j and set-screw k. The arm and keeper are notched .and interlock to prevent the arm 1' from slipping when set in the spindle Z, as seen in Fig. 5. The thin plate I) is held in position by the screws or rivets s s, as seen in Fig. 4-. The tumblers are arranged with apertures or openings through or near the center of each varying in size, as seen in 5, and so arranged that the aperture in tumbler f shall be larger than that in tumbler g, and the aperture in tumbler 6 shall be larger than that in tumbler f, and the aperture in tumbler (I shall be larger than that in tumbler 6. Through these openings the spindle 1 passes, holding the arm 2". The arm is of sufiicient width, so as to cover the entire width of and engage all the tumblers, as may be desired, as seen in Figs. 3 and 4.

The dog m, as seen in Fig. 3, when. thrown forward by the motion of the tumblers, so that the adjustable head n passes outside of the edge of the case or lug resting against the case, is forced upward and out of the slots in the tumblers, for the reason that the lug on the lower side of the dog m is slightly wedgeshaped and thinner at its extreme lower point than farther back on the dog, and so arranged at an angle as to give it a tendency to rise up and fly out of the notches in the tumblers when thrown forward, and then the combination is locked, as shown in Figs. 1 and 2, and the dog cannot again fall until all the slots in the tumblers are brought successively into line with each other and directly under the lug on the dog m, the width of which is sufficient to cover all the tumblers combined and resting upon them.

The method of unlocking the combination or withdrawing the dog m is by turning the spindle Z, which brings the arm i against and so that it engages the side of the opening in the tumbler d, as shown in Fig. 3, and throwing that tumbler forward or backward until the slot in tumbler (Z is drawn directly under the lug on the dog m, when the arm 2' is turned in the opposite direction, leaving the tumbler cl in position, and the arm is brought in like,

manner in contact with the tumbler 6, when that tumbler is thrown backward or forward until the slot in tumbler e is brought directly under the lug in the dog on and in line with the slot in the tumbler d. Then the arm 2 is again turned in the opposite direction, leaving the tumbler e in position, and is brought in like manner in contact with the tumbler f, and that tumbler is thrown forward or backward until the slot in that tumbler is brought under the lug in the dog in and in line with the slots in the tumblers (Z and 0, when again the arm is turned in the opposite direction, leaving tumblerf in position, and is brought in like manner in contact with tumbler g, and that tumbler is thrown forward or backward until the slot in that tumbler is brmlght under the lug in the dog Ht and in line with the slots in tumblers (I c f, as shown in Fig. 3, when the lug in the dog or will drop into the slots in the tumblers rl efg, and the. head '11, will .i'all below the line of the resisting ease orlug, when the spindle isturned back against the tumblers, earryi in; with itthetmnblers, the dorm, and the guard-plates and 71', and the head 'aiswithd rawn into the case and the combination is unlocked and the bolt may be thrown back. It will be seen that by each motion of the arm 1' in brin in each tumbler into place to receive the lug all the other and unoccupied tumblers will be thrown backward or forward, as the arse may be, until all the tumblers are brought successively into position.

In order to lock the combination, the arm i is turned forward by means of the spindle Z engaging the sides of the tumblers or of one of the tumblers, and then all of the tumblers are thrown forward, carrying with them the dog on, the guar l-plates c and 71, and as soon as the head it passes outside ol' the case or the resisting-lug attached thereto the lug; on the dog In is thrown up and out of the slots in the tumblers, as hereinbetore described, and the head rests upon and against the outside of the case or resisting-lug; attached, as aforesaid, and the combination is locked and iirm, as shown in l igs. l and 2.

The length of the dog or, in (annbination with the head 11, maybe adjusted, (lengthened or sl1ort(med,) as may be desired, by means of the set-screw q and carrying-screw 1), as seen in Figs. 3 and The carrying-serew '12, passing through the yoke o, carries the head a in grooves or slots upon the dog H7, where it may be t'astenml by the set-screw q. The yoke 0 attached and fastened to the head 11 bymeans of the sermv I. The combination of this lock may be rep.- ulated and :uliusterl by m ans of sliding and adjusting the head )1 upon the dog" in by the set-screw q and carryiarr-screw p, as may be desired.

The arm 1' may be lengthened or shortened by changing its position in the spindle Z by means of the interlocking notches upon the arm I and keeper-j, which is attacluial to the spindle I by the set-screw Ir. The arm is held in position by the set-screw 7r at any point desired, and by lengthening or shortening the arm, or moving it into dil't'erent positions in the spindle by the means as lmreinbetore described, as seen in Figs. at and 5, the combination of this lock, may be changed and adjusted as may be desired. If desired, the keeper 7' may be dispensed with, and the notches in the at m i may be made to interlock with like notches in the spindle Z, and may be held in position by means of a setscrcw. The spindle and the tumblers in this lock; are separate and detached from each other-that is, the spindle is detached from the tumblers and the tumblers are detached from each other-that is, not connected by means of pin, slot, dog, or otherw is( .so that the spindle may be driven in and through the lock. without displacing" any of the tumblers or releasing the dog in; and the t'runblcrs being indepernlent of each other, and the arm 1' acting upon each tumbler directly, separately, and independently, any one or more of the llllll'llJlOlS (one alone remaining) may be (lis )laeedli)y any explosion or otherwise-- without releasin the bolt. It would be next to impossible to bring" the tumblers into position so as to release the bolt by means of a pick from the outside in case the spindle should be driven in, and impossible to release the bolt by operating upon one or more of the tumblers by means of a pick through the spindle-hole. As the tumblers are detached and not connected with or dependent upon each other, the moving of one tumbler would in no way disturb or affect any of the others. The lug on the under side of the dog W1 is wide enough to extend across and engage all the tumblers at once in such a manner that it cannot fall unless all the notches in all the tumblers are brought into line and directly under the lug on the dog" Ht.

with rotary tumblers and those with sliding tumblers connected and dependent upon each other by means of a pin or otherwise are destroyed and the bolt released by driving in the spindle. The driving in of the spindle, in case the tumblers are connected with and dependent on each. other, necessarily carries with it the tumblers, and consequently releases the bolt; but when the spindle is detached from the tumblers, and the tumblers are detached from each other, and the spindle acting upon each independently and directly, the spindle may be driven in, and the dog and bolt will remain fixed in the same position as before, as is shown in this lock.

This lock is constructed with a thin plate or cap, I), as seen in Fig. 1, so that in case the spindle Z should be driven in this cap or thin plate will be easily removed and driven in without tearing" away the inside of the case of the lock, or dis j lacing the tumblers, or do" ing any other injury to the lock. or case. This lock is more simple and composed of less number of pieces or parts than the ordinary combiiration-lock with rotary or sliding and connected tumblers, and this look is much less expensive than any other coml)inationlook now in use.

This lock maybe eonstruetml with as many tumblers as may be desired.

13y detaelual spindle and arm and indepemlen t tumblers I mean. that neither the arm nor spindle is connected with or fixed in the tumblers, but are held in place by and fixed in the door or case to which the lock is attached or fastened, and that the tumblers are not connected with or dependent upon each other for their motion, but are acted upon independently of each other, and directly by the arm, which is fixed in the spindle, but not connected with either tumbler.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A combination-lock having a combination of independent tumblers with unequal and irregular openings or apertures within or near their centers, through which openings a detached and independent spindle passes and operates upon the tumblers within the openings by means of an adjustable arm attached to the spindle, substantially as herein shown and described.

2. A combination-lock having tumblers operating independently of each other, which tumblers are operated upon "and adjusted individually by means of an arm connected with a spindle and acting upon each tumbler directly and independently, substantially as herein shown and described.

3. A combination-lock having a thin plate or cap, I), in combination with the independent spindle Z, adjustable arm '5, independent tumblers (Z c f g, and dog m, the thin plate or cap being arranged and adjusted upon the back of the case of the look, as described, whereby the spindle Zand arm 1' may be driven in, removing the thin plate or cap without destroying or injuring the other parts of the lock or case or displacing the tumblers, substantially as herein shown and described.

4. A combination -lock having an independent spindle, Z, and arm 1', held in position by means of the set-screw 7c, and keeper j, having a ratchet or teeth interlocking with like teeth in the arm i, arranged as described, whereby the combination of the lock may be changed and regulated by shortening or extending the arm 11 in the spindlel, in combination with the independent tumblers d e f g and dog m, substantially as herein shown and described.

5. A combination-lock having a dog, m, and head a, carryingscrew 13, and set-screw q, as described, whereby the combination of the lock may be changed by extending or drawing back the head 01 upon the dog on by means of the carrying-screw p and set-screw q, in combination with the sliding tumblers d e f g, spindle Z, and arm 2', substantially as herein shown and described.

HENRY 0. BROWN, JR. lVitnesses:

HENRY 0. BROWN, ALPHEUS L. BROWN.

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