US1126660A - Combination-lock. - Google Patents

Description

W. H. SHELBOURNE, E. W. QUISENBBRY & P. DIGKERSON. COMBINATION LOCK.

APPLICATION FILED MAY 7, 1914.

1,126,660, Patented Jan. 26, 1 915.

2 SHEETS-SHEET 1.

THE NORRIS PETERS C0,, FHOTO-LITHO. WASHINGTON. D. c.

W. H. SHELBOURNE, E. W. QUISENBERY & P. DICKERSON.

COMBINATION LOOK.

APPLICATION FILED MAY 7, 1914.

1,126,660. Patented Jan. 26, 1915.

2 SHEETS-SHEET 2.

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i. on, which form a part WILLIAM H. SHELBOUBNE,

ELWOOD V. QUISENBERY, AND PETER DICKERSON, OF

RUSSELLVILLE, KENTUCKY.

COMBINATION-LOCK.

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Specification of Letters Patent.

PatentedJan. 26, 1915.

Application filed May 7, 1914. Serial No. 837,005.

T all 7.0710111 it may concern:

Be it known that we, WILLIAM H. SHEL- noUnxn, ELwooD W. Qnisnnnnnr, and Pnrnu DICKERSON, citizens of the United States, residents of ltussellville, in the county of Logan and State of Kentucky, have made a certain new and useful Invention in Combination-Locks; and We declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the invention, reference being had to the accompanying drawings, and to letters or figures of reference marked thereof this specification.

Figure 1 is a rear view of the invention with parts in locked position, the back of the casing being removed. Fig. 2 is a similar view with parts in unlocked position. Fig. 3 is a section on the line 33 Fig. 1. Fig. 4: is a section on the line lt- 1, Fig. 1. Fig. 5 is a front view showing the combination plates. Fig. 6 is a detail rear view of one of the notched disks.

The object of the invention is to provide an improvement in combination locks, whereby the operating parts are designed to be simplified and strengthened, and it consists in the novel construction and combinations of parts, as hereinafter set forth.

In the accompanying drawings, the numeral 2 indicates a door or cover, and 3 the jamb or marginal portion of a door-way or casing, which is provided with a keeperplate l, designed to engage the bolt or bolts 5 of the lock, the holding parts of which are shown attached to the door or cover.

The bolt or bolts 5, on the inside of the door, are slide bolts, having a head 6 and an extension 7 which may be suitably guided, as by sliding engagement with a bearing 41. This extension is engaged by an arm 8 of an angle-lever 9, the other arm 1.0 of which is engaged by one end of an operating rod 12, the other end of which is attached to an operating knob 1& on the outside of the door or casing, said knob having a shank portion which extends through a slot 16 of the door or casing. The slot 16 is short, and is covered in by the base of the knob 14. The angle-lever is under tension of a spring 32.

Alongside the reciprocating knob 14, on the outside of the door, are the combination plates or numbered plates of the lock. These plates are concentric and preferably circular, and one of them is a fixed plate 17, secured to the surface of the door. An outer numbered operating plate or boss 18 is provided with a pivotal shank 19, which passes through the door and through the other combination plates, and is secured inside the door to a holding piece 20 (which may be integral with disk 24;), by means of a squared end and a pin passing through a perforation thereof. A bearing plate 21 is secured to the inside of the door, and extending across this plate are friction pieces or bearings 22, which may be of leather, on which bears an inner notched plate or disk 23, which is secured to a sleeve, said sleeve being pivotally mounted on the shank 19, to which is secured a notched disk 2%, on the squared portion of the shank and movable with the boss 18. The disk 23 is connected by its sleeve device to another plate 33, and this disk and the disk 24 are each provided with a radial notch 25, these notches in certain positions of the disks coming in alined position to receive the end of a slide latch 26. When this latch is moved into engagement with the notches of these disks, the bolts of the lock are automatically with drawn from the keeper and the operating boss 18 is held stationary.

The slide latch 26 is a part of a slide head 27, moving in guide bearings, and provided with a slide bar 28, parallel with the slide latch and connected to the shank of a second operating or unlocking knob 29, outside the door, said shank passing through a slot 30 of the door. The slide head 27 is under the tension of a spring 31, to withdraw the latch from the disks.

The journal bearing or pivotal sleeve of the disk 23 is secured to the combination plate 33 which is next to the outer plate or boss 18.

When the door is open, and the bolts 5 are in locked position, the outer combination plates may be adiusted to any combination of numbers within their limits which will serve to brin the radial notches of the inside disks in alinement. Then these notches are aline d and the latch is engaged therewith, by operation of knob 29, this movement releasing the bolt head from the locking engagement of a projection or trip device 34 of the latch head, so that it is withdrawn by the spring and angle lever. In this relation the operating knob 29 is held in fixed position by the engagement of the lateral face of the extension? With the projection 3% of the slide bar 28 connected to said knob.

In the-unlocked position of the bolts, the position of the disks and combination plates is determined, and the operating knob 14 is free to be moved against the tension of the spring.

The door being closed, the reciprocating knob 1% is pushed and operates the rod 12 to move the angle-lever 9 in the proper direction to move the bolts into engagement With the keeper. By this movement the extension 7 of the bolt head is caused to reciprocate until thesslide bar 28 is released and is moved by its spring into position to engage a shoulder 35 of the bolt head and prevent WithdraWal of the bolts from the keeper. This slide bar 28 being in rigid connection with the slide latch 26, its reciprocating movement Withdraws said latch from the radial notches of the disks 23 and 24:, so that When the boss 18 is turned the alinement of these notches is broken, and the engagement of the latch 26 With the edge of the disk or disks serves to assist in holding the parts in locked position and preventing movement of either the locking knob 14 or the unlocking knob 29, these knobs having parallel motions of reciprocation.

In order to unlock the door, the outside plates are turned according to the numbers of the combination upon Which the lock has Copies of this patent may be obtained for five cents each, by addressing the been set,'to bring the notches of the inside disks into alinement with each other and With the slide latch 26. This releases said slide latch from engagement with the edges of the disks, and upon pushing the unlocking knob 29 the slide latch is brought into engagement with said notches, the bolts are Withdrawn by spring action, and the unlocking knob is held in fixed position by the engagement through its trip device of the slide head With the bolt head.

WVe claim:

In a permutation lock, the combination With a plurality of combinationdisks having radial notches, of a reciprocating spring-retracted lock bolt, a spring-projected latch bolt reciprocating at right angles to said lock bolt and adapted to engage said radial notches, having means for locking said lock bolt when the lock bolt is in projected position, said lock bolt being provided with means to prevent the projection of the latch bolt When said lock bolt isretracted, and means for manually operating said bolts against the tension of their springs.

In testimony whereof We afiix our signatures, in presence of tWo Witnesses.

WVILLIAM H. SHELBOURNE. E. W. QUISENBERY. PETER DICKERSON. v

Witnesses:

HOMER FEL'rs, LULU L. SHELBOURNE.

Washington, D. O.

said latch bolt Commissioner of Patent!

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