US345270A - Permutation-lock - Google Patents

Description

(Model.) i 2 Sheets-Sheet 2.

C. A; BEGGS a J. s. COXBY. PERMUTATION LOCK.

10.345,270. i PatentedJu1y13,1886.

minimum# MMIII lll SrArES Afr-ENT ERICE.

CHARLES A. REGGS AND JASPER s. CCXEY, onv RICE LAKE, WISCONSIN.

PRMu'rA-TloN-LCCK.

SPEGIFICATIQN forming part of Letters Patent No. 345,270, elated July 13, 1886.

'Application filed May 18, 1885. Serial No 165,797. (Mo lel.)

To all whom it may concern.-

Be it known that we, CHARLES A. BEcGs and JASPER S. CCXEY, of Rice Lake, in the county of Barron and State of Visconsin, have invented an Improved Permutation-Lock, of which the following is a specification.

This invention relates to permutation-locks for use in public buildings, stores, or dwellings, and it consists in certain improvements in the construction of the same, as hereinafter described and claimed.

In the accompanying drawings, Figure 1 v( represents a side view of a permutationllock having our improvements, a part of the casing being removed. Fig. 2 is a transverse vertical section thereof taken on line w x of Fig. 1. Fig. 3 illustrates in perspective and back views the vertical slides G and H, herein described. Figs. 4t to 13 represent details of the lock mechanism detached.

A designates the casing of the lock, which has an inward tubular projection, 7)', which forms a bearing for the spindle c of the dialplate C, and a journal yfor the circular tumblers a. The said tumblers are four in number, each having forty-eight screw-holes, a', arranged in two rows of twenty-four each on concentric circles, as shown. The screw-holes a are numbered 1 to 48, to correspond with the numbers on thc dial. Each of the said tumblers has a screw, a, in the hole c', which projects about one-sixteenth of an inch from either side, the tumblers being spaced apart by the intermediate washers, I), on the j ournal or bearing b. The screws a,'by which engagement between the tumblers is effected, may be placed in the holes in either the outer or the inner circle, as may be'preferred. A notch, a", is made in the periphery of each tumbler, to receive the foot or lower end, e", of a lever, c, which is pivoted within the casing in position to engage with the tumblers, as shown in Fig. 1, said lever being pressed to them by a spring, u, secured to the casing. To the end ofthe spindle c is securedl an arm, d, having at its outer end an aperture,in which projects a screw, a, of the iirsttumbler, or the tumbler nearest said arm.

F indicates a slide, which is located above the tumblers and loosely'secured to the upper part of the casing by screws passing through a slot, f. One end of said slide is loosely connected with the upper end of lever e by pin e, secured upon the latter, engaging a slot cut in the former, the parts being so constructed that when the foot of said lever is pressed by the spring u into the notches c of the tumblers the slide F is drawn to the right, and when the foot of the lever is pushed ont of the notches the slide F is moved in the -opposite direction.

G and H designate, respectively, two slides, see Figs. 1, 3, and 8,) placed side by side at the left of the tumblers a and against the casing, said slides being retained by the iixed posts o anda stud, r, fastened to the casing and extending into a recess in the side of slide H. The slide G has a horizontal arm, g, extending over a cam-lever, J, for engagement with said lever. The slide H is also provided with a similar arm, h, which extends over a cam-lever, K, and a foot or enlargement, h', at its lower end, which fits in a corresponding recess, p', in the lock-bolt. tween the two slides is effected by means of a pin,w, on slide H, extending into a slot or re; cess in slide G, the slide H being raised by -slide G in its upward movement, ashereinafter set forth.

The lever J, in position under arm g, is fast upon the spindle of the outside knob or hand1e,l, said spindle being journaledin the front side of the lock-casing, as shown. The upper part of said lever J has a cam form for bearing against arm g in raising or lowering slide G, and the lower end of said lever is in position to come in contact with a pin or stud, Z, (projecting laterally from the lock-bolt L,) when the lever is turned to retract the bolt.

The lever K is placed loosely on the end of spindle z', the upper part of said lever being cam-formed to bear against the arm h of slide H, and its lower end being formed to enter a recess, p, in bolt L. To the inside face of lever K is secured a plate, a, from which projects a short spindle, n', the same being on a line with spindle ,and extending into the shank of the inside door-knob, m, being secured therein and j ournaled in the plate t of the lock-casing,

so that lever K may be operated by means of rco knob m.

The bolt L, located ih the lower part of the Engagement belock-casing, has at its rear end a recess, p', to,

J, which actuates the bolt in `both movements, 1` and also engages with the slide G, which coni nects with slide H through pin w, formed upon the latter; but in locking or unlocking from the inside of the door, by means of knob Q m, the operation is effected through the loose lever K, by which the bolt may be actuated in both movements, said lever engaging with slide H. A pin, 1, on lever J serves to produce'similar movement of lever K.

To set the tumblers'for the required combination, the first tumbler a, or that connected with arm d,is, by means of said arm and spindle c of the dial-plate, turnedfour revolutions to the left, the Iirst of which revolutions brings the screw a" of said tumbler in contact with screw a of the next or second tumbler. Another like revolution brings the screw of said second tumbler against the screw of the third tumbler, and a third like revolution brings the screw of the third tumbler against 4the 'screw of the fourth tumbler, which is brought by continued turning to the number on which it is set, with its notch a directly opposite or in line with the foot of lever e. The dial-plate is then turned three revolutions to the right, which brings the third tumbler' to the number on which it is set. Then by two revolutions to the left for the second tumbler, and, finally, one revolution to the right for the first tumbler, all of said four tumblers are brought in position, with their notches a in line to receive the foot of lever e, which is then pressed into said notches by the vspring u, the combination being complete. The lever e, by its-movement to connect with the tumblers a, draws the slide F, leaving room for the upward movement of `slide G when the bolt is retracted. When the bolt is shot, the slides G and H sink by gravity, the slide H resting at the bottom of the lock-casing, just in rear of the lock-bolt.

'To unlock from the outside of the door,

turn the knob or handle I, and the'lever J,`

being fast on the spindle i, is turned, and bearing upward against arm g of slide G raises said slide, and by means of pin w, extending into a recess in slide G, the slide H is also raised. The lower end of lever J catches the pin Z on bolt L, withdrawing said `bolt. The arms g and h of the slides rest on the upper parts of levers J and K, and the foot h of slide H rests in the recess p of the lock-bolt, as seen in Fig. 1. By a reverse movement of knob I the lock-bolt is shot, the locking being effected by the fast lever J acting against the bolt.

To unlock from the inside of the door, turn the knob m, and the lever K, through spindle n', secured, thereto, is turned, and the upper part of said lever, bearing against arm h, raises slide H, and the tail k catches in recess p of the bolt, retracting said bolt. In locking or unlockingfby means of knob m, through spindle n', neither the combination nor slide G isdisturbed, as the slide H is raised by lever K independently of slide G, such independ- -ent movement being allowed by the elongated slot or recess in G, into which projects the pin won slide H. When the bolt L is shot and kslides G and H are down, the horizontal slide F extends over the slide G, as indicated in dotted lines in Fig. 3; but the slide H is left free to be operated, in locking or unlocking from the inside, by means of knob on, spindle n', and cam-lever K.

To break the combination after shootingA the bolt into the keeper, turn the dial around to the right two or three times. The inner plate, t, ot' the casing,being removable, is held in place by a screw, s, driven into a central post, U.

We claim as our invention- 1. The combination, with the notched tum blers and detent-lever, of the horizontal slide F, vertical slides G and H, having arms g and IL, cam-lever J, and bolt L, substantially as set fort-h and described.

2. The combination, with vertical slide H, provided with arm h, of the cam-lever K, with spindlen, fastened thereto and provided with a knob, and the bolt L, substantially as set forth, for the purpose specified.

3. In combination with slide F and detentlever e, the vertical slides G H, provided with arms g h, fast lever J, provided with pin y, loose lever K, provided with spindle n', and bolt L, adapted to be moved by eitherof levers JK, substantially as shown and described.

CHARLES A. BEGGS. JASPER S. COXEY. Witnesses:

EDEN W. BoorH, FREMONT D. BOOTH.

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