US1032962A - Lock. - Google Patents

Description

W. H. TAYLOR.

LOCK.

APPLICATION FILED JAN. 5, 1912.

Patented July 16, 1912.

VE/VTOR I r A lorney WITNESSES "*1" I W WW COLUMBIA PLANOGIAPH c0.,wASHlNqMN. n. c.

UNITED STATES PATENT OFFICE.

WARREN H. TAYLOR, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE & TOWNE MANUFACTURING COMPANY, OF STAMFORD, CONNECTICUT.

LOCK.

Specification of Letters Patent.

Application filed January 5, 1912. Serial No. 669,523.

To all whom it may concern:

Be it known that I, WARREN H. TAYLOR, a citizen of the United States, residing at Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Looks; and I do hereby 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. I

My invention relates to an improvement in looks, designed particularly for use on safe deposit boxes, the object being to provide a lock having change and guard key mechanisms each of which must be actuated by a key before the lock can be unlocked, with a third key mechanism for changing the combination of the main look from one change key to another.

With this object in view my invention consists in a bolt, guard key actuated mech anism for dogging the bolt, change key actuated mechanism, includingv two part tumblers, for retracting the bolt, and key actuated mechanism for separating the two parts of the several tumblers whereby their relative arrangements will be changed by the insertion and turning of a change key.

My invention further consists in the parts and combination of parts and in the details of construction as will be more fully eX- plained and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in front elevation of the lock. Fig. 2 is a view in rear elevation. Fig. 3 is a view of the lock, with the cover plate removed, showing the bolt projected, locked and deadlocked. Fig. 1 is a similar view showing the bolt retracted. Fig. 5 is a similar view showing the tumbler sections separated preparatory to changing the combination. Fig. 6 is a view with'the tumblers removed showing the bolt, slide plate, dead locking or dogging lever and means for actuating the slide plate. Fig. 7 is a view of the rear end of the lock showing the catch holding the dogging lever out of the path of the bolt and Fig; 8 isa view in perspective of the dogging lever.

1 represents a lock case adapted for attachment tothe door of a safe deposit boX, and 2 is the bolt, having an open slot 3 at its rear end and a closed slot 4 in its body, for the passage of the pin 5 carried by slide 6 located against the rear face of the bolt. Secured to the lock case in line with the open slot 3 in the bolt 2 is the pin 7, which together with the pin 5, carry the two parts of the change key tumblers. These tumblers each consist of a pivoted section 8 and a circular section 8*. The front ends of the pivoted section 8 of each tumbler is curved in the arc of a circle concentric with the pin 7, and toothed as at 7 a to mesh with the toothed edge 7 b of the circular section 8 so that when the pivoted section 8 of the tumbler is moved by its spring or by a change key, the circular section will be partly rotated on its pin 5. The several tumblers are alike, and each circular or disk shaped sectionis provided with a gating 8 which gatings when in alinement receive the fence '9 projecting rearwardly from the head of "bolt 2, and permit the bolt, if otherwise free,

to be retracted by the change key. Each pivoted member of the tumbler is spring pressed, so that when released by the key it will partly turn on its pin 7 and rotate its circular section so as to carry its gating 8 out of line with the fence 9, thus lockingthe bolt in its projected position.

Located at the rear end of the bolt is the pin tumbler lock 10, the plug 11 of which when turned by its proper key, (which is the guard key of the lock) actuates, through its cam 12, the bell crank dogging lever 13. This lever is pivotally mounted on the pin 14 fixed to the lock case, and is provided with a spring 15 which tends to normally hold the front member of said dogging lever 13 over and in contact with the cam 12, and

its rear member 13 in line with the rear end of the bolt 2, thus dogging the latter, and absolutely preventing any movement of the bolt, until said member 18 is moved out of the way of the bolt by the guard key inserted in the pin tumbler lock 10.

Pivotally mounted on the pin: 7 at the rear of the bolt 2 is the catch, consisting of a central hub 16 and two arms 16 and 16, the former of which normally rests under the rear arm 13 of the dogging of the catch in contact with the lug 13 on lever-13, and against the lug. 13 on v the dogging lever 13, while the latter is dogging the bolt 2, and when the dogging lever is moved out of the path of the bolt by the guard key and its lock, this arm rides under said lug 13 to the lower side thereof and engaging said lug, holds the arm l6 out of the path of n'lovement of the bolt. This movement of the catch, by its spring, carries the other arm 16 thereof close up to the lower rear edge 2 of the bolt, so that when the bolt is ret acted by the change key, the catch will be turned on its pivot, so as to carry its arm l6 away from the lug 13 thus releasing the dogging lever 13 and permitting the latter to move into contact with the upper edge of the bolt, and free to again move into the path of the bolt the instant the latter is projected by the change key.

The change key lock consists of a nose 17 carrying a plug l7 having a key way there in for the passage of the change key having hitting of the usual form to engage the pivoted members 8 of the two part tumblers. This key also engages the bolt, and when the latter is freed of the dogging lever 13 retracts, and also projects the bolt.

From the construction thus far described it will be seen that to retract the bolt, the guard key, held by the custodian of the boxes must be first introduced and turned to move the dead-locking dog 13 out of the path of the bolt, thus leaving the latter free to be retracted by the change key, held by the lessee of the box. After the bolt has been retracted, the act of projecting it again by the change key, causes the dead locking lever to again move into position to deadlock the bolt against all keys.

It is desirable to provide means whereby, when a box is given up or surrendered, its combination be changed so that it cannot be thereafter opened by its former change key, and to accomplish this, I make the tumblers in two parts as previously described, and provide a third key mechanism for separating the two parts of the tumblers, whereby they may be reset on a new combination by the introduction of a new change key, while the bolt is thus retracted. This third key lock 18 is of the pin tumbler type, and is accessible only through the rear face of the lock, hence can only be manipulated by a key retained in the custody of the manager, when the door is open, and which key is hereinafter referred to as the managers key. This lock 18 is as before stated, of the pin tumbler type, and its plug is provided with a cam 18 resting in a recess (3 in the arms 6", projecting rearwardly from the slide plate 6 carrying the pin 5 on which the circular or disk shaped section 8 of the tumblers are mounted. By inserting the managers key and turning the plug, the cam 18, engaging one wall of the recess in the arm 6 moves the slide plate 6 for wardly, thus carrying the pin with the circular or disk shaped sections 8 of the tumblers, away from the pivoted sections 8, thus releasing the latter and permitting their springs to throw the tumblers down and into contact with the plug 17 of the change key lock. As before explained this can only be done when the door is open and the bolt retracted, hence when the two parts of the tumblers are separated as above described the circular or disk shaped sections 8 are locked against movement by the fence 9 on the bolt- 2. By now inserting a new change key, and turning same so as to partly rotate the pivoted section 8 of the tumbler, and then while the pivoted sections of the tumblers are so held by the change key, releasing the slide plate 6 so that the circular sections 8 of the tumblers will move back into engagement with the pivoted sections 8, and a new combination will be formed, and the tumblers will. be operable only by the key to which the tumblers were set, thus barring all previous change keys that may have been issued against the lock.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit and scope of my invention. Hence I would have it understood that I do not wish to confine myself to the exact construction and arrangement of parts shown and described, but

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

1. In a multiple key lock, the combination of a bolt, sectional tumblers, a key for actuating the tumblers, a dead lock for the bolt, a key lock for moving said dead lock out of the path of the bolt, means independent of said key lock for holding the dead lock out of the path of the bolt, after it has been actuated by its key lock, and a third key lock for separating the sections of the tumblers whereby a new combination may be formed by the insertion of a new key.

2. In a multiple key lock, the coml'iination of a bolt, sectional tumblers, a slide carrying a section of each tumbler, a key lock for actuating said slide whereby the tumbler sections may be separated, a key for actuating said tumblers, a dead locking device for the bolt, and a key lock for moving said dead locking device out of the path of the bolt.

3. In a multiple key lock, the combination of a bolt having a fence, a series of two part tumblers, one part of each tumbler having a gating to receive the fence on the bolt, a key lock for actuating the tumblers, a key lock for disconnecting the sections of the tumblers whereby the latter may be set up on a new combination, a dead locking lever for the bolt, a key lock for moving said lever out of the path of the bolt and means for holdliong said dead lock out of the path of said 4:. In a multiple key lock, the combination of a bolt, sectional tumblers one section of each tumbler being circular and mounted to rotate, and the other section of each tumbler being pivoted, dead locking means for the bolt, two key locks operable through the front face of the lock for respectively moving the dead locking means out of the path of the bolt, and for actuating the tumblers and bolt, and a third key lock operable through the rear face of the lock for separating the sections of the tumblers, whereby the relative position of the two parts of the tumblers may be changed.

In a multiple key lock, the combination of a lock casing, a support carried thereby, a bolt having a fence, a slide plate having a fixed pin thereon, sectional tumblers, one section of each being mounted on said pin and the other section on the support carried by the lock casing, means for moving the sections carried by the plate away from and toward the sections carried by the casing, a key lock for actuating the tumblers and the bolt, a dead locking lever for the bolt, and a key lock for actuating said lever.

6. In a multiple key lock, the combination of a bolt, tumblers, a key lock for actuating the bolt and tumblers, a dead locking lever for the bolt, a key lock for actuating same to release the bolt, and a, catch pivoted in the lock casing and adapted to hold the dead locking lever out of the path of the bolt, and adapted when the bolt is retracted to be engaged and moved by said bolt, to release the dead locking lever, so that when the bolt is again projected the dead locking lever will move into its dead locking position' 7. In a multiple key lock, the combination of a bolt,'tumblers, a key lock for actuating the tumblers and bolt, a dead locking lever for the bolt, a key lock for actuating same to release the bolt and a two armed spring actuated catch, one arm adapted to engage the dead locking lever for holding same in the position to which it is moved by its key lock, and the other arm adapted to be engaged by the bolt when the latter is retracted for releasing the dead locking lever whereby the latter will be free to assume its dead locking position as soon as the bolt has been fully projected.

8. In a multiple key lock, the combination of a bolt, sectional tumblers, the two sections of each tumbler, independent supports for said sections, one of which supports is movable toward and from the other, whereby the sections of the tumblers may be brought into engagement or separated, a key lock for actuating said movable support, a key for actuating the tumblers, a dead locking device for the bolt, and key lock mechanism, for moving said dead locking device out of the path of the bolt. 7

9. In a multiple key lock, the combination of a bolt, sectional tumblers, a slide carrying a section of each tumbler, a key lock for actuating said slide whereby the tumbler sections may be separated, a key for actuating said tumblers, a dead locking device for the bolt, a key lock for moving said dead look ing device out of the path of the bolt, and means independent of said key lock for holding the dead locking device out of the path of the bolt .after it has been actuated by its key lock.

In testimony whereof, I have signed this specification in the presence of two subscrib ing witnesses.

WARREN. H. TAYLOR. W'itnesses:

J. A. GAYLo-R, lVM. M. NORDENI-IOLD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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