US387300A - Pi alp to john w - Google Patents

Description

(No Model.)

C. HENDERSON.

COMBINATION LOCK.

l.. I l l 'l I .air llnnmlllll" "l" ""l hilmlmlfllllln MMM n'ttlsirTnn bSTnTns BaTnniT Ormea@ GAVAN HENDERSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO JOHN XV. HORNE, OF SAME PLACE.

COMBINATIONLOCK.

SPECIFICATIUN forming part of Letters Patent No. 387.300, dated August '7, 188B.

Application tiled January 24, 1888. Serial No. 261,796.

T0 @ZZ whom, it may concern.'

Be it known that I, GAVAN HENDERSON, of Boston, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Co1nbination-Locks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining its nature.

The object of the invention is to provide a combinatioulock of simple, inexpensive, and compact construction.

In the drawings, Figure 1 is a view, in elevation, of a box having my combination-lock attached thereto. Fig. 2 is a View, in elevation, of a portion of a box, the front plate ofthe lock being removed to show the interior construction thereof, and representing the position of the parts when locked. Fig. 3 is a view of the same parts, showing their position when unlocked. Fig. 4t is a vertical section of a portion of the box and look enlarged. Fig. 5 is a view in horizontal section, enlarged, of a portion or" the lock. Figs. 6, 7, and 8 are views of the tumblers employed. Fig. 9 is a view of the washer which is interposed between the tumbler-s.

Referring to the drawings, A represents lthe case of the lock.

c is a slide-bolt mounted on one plate ofthe locl ,and represented as formed upon the slide plate a2. This slide-plate is moved by a lever, da, attached to a shaft or turning-stud, aiwhich extends to a position on the outside ofthe front plate of the lock, and has a iinger-piece, c5, or other end by which it maybe easily turned. The stud a* is the fulcrum ofthe lever a, and the lever is connected with the slide-plate c2 by means of a pin, a, secured to said plate, and which extends into along recess, al, at the outer end of the lever a3. The bolt c is formed by cutting or removing a section of the plate a2 to form the recess a8. (See Fig. 3.)

B B B2 represent tu mblers. They are annular in shape, and each has an opening, b. The tumbler B has the inward projection or tooth b', the tumbler B the inward projections or teeth b2 b3, and the tumblerBl the projections b4 c5, which form a recess, 116. These tumblers are held in a cylindrical case, G, secured to the inner plate, c, of the lock, said case being (No mmlelJ of asize to hold the tumblcrs and permit them to be turned therein, and the tumblersv are separated from each other by annular washers D, each of which has an opening, d, and an outward extension or tongue, d', which enters a recess, cl2, in the casing C. This construction prevents the washers from being turned upon the turning of the tumblers, and always mai-ntains the openings d in line with the opening di" of the case C.

The tumblers B B B'Z are operated by means! of a spindle, E, which extends from the operating-button e through the cavity of the tumblers and washers, and has a bearing in the case-plate c. This spindle has extending from it an arm or wing, e', which enters the recess b6 of the lower tumbler, B, between the pron jections b2 b3 of the tumbler B', and extends to come in line with the projection b upon the tumbler B; and in order to set the tumblers to allow the bolt to be moved it is necessary that the spindle should be rst moved or turned in one direction to bring the opening b of the tumbler B in line with the opening d3 in the case C, and then that its movement should be reversed in order that the second tumbler B should he moved to bring its opening b in line with the opening d3, and then to be again turned in the direction iu which it was first turned to move the tumbler B2 sufficiently to bring its opening b in line with the said opening d3.

There is attached tothe arm of the slide-plate a2 a thin lockingbar, f, preferably integral with the plate, and which is of a size to enter the opening di' in the case C and the openings b of the tumbler-s when they are moved into line with the said opening d3, and when they are so moved, by turning the stud c, the bolt ct may be moved, the lockingbar f being unobstructed and riding freely into the openings d" b. If, however, one or more of the tumblers should be so turned as to close the opening d?, of course the locking-bar cannot then be turned or moved by the spindle. I prefer to make the outer end ofthe spindle square, as represented in Fig. 5, and to form in its operatingbutton a square hole for its reception. By this connection there is provision for four different connections between the dial and the spindle. F is the dial. It is divided into any desired number of spaces, which are numbered or let6 IOO tered,and there is arranged upon the escntchecn-plate of the lock a line or indicator, to which a numbered or lettered line of the dial is moved in setting the tu rnblers.

The ad vautages of the construction arise very largely from its simplicity, from its compact form, and from its cheapness.

Having thus fully described my invention,I claim and desire to secure by Letters Patent of the United States- 1. The combination, in a combinationlock, ofthe slide-plate,having a bolt, a, and the locking-bar j', means for moving the slide-plate and bar, the tumbler-casing C, having the opening d3, the annular tumblers B B B2, or two or more of them, having the openings b, and the projections or teeth, as specified, and the operatingspindle E, having the Wing e', which engages the projections of the tumblers, as and for the purposes described.

2. The combinaion, in a combination-lock, of the tumbler-case C, the annular tumblers B B B2, having the openings b and inwardextending projections,and the Washers D, hav ing the openings d and holdingextensions d', substantially as described.

the tumblers B B B2, having openings b and projections, as specified, the Washers D, having the openings d and extensions d', and the operating-spindle E, having the wing e', substantially as described.

4. The combination, in a combination-lock, of the tumbler-case C, having the openings d3 d2, the tumblers B B' B2, having the openings b and projections, as specified, the Washers D, having the openings d and locking-extensions d', the spindle E, having the Wing e and a square head,with the button e, having a square hole to receive the end of the spindle and permit it to be adjusted into other positions in relation thereto, substantially as described.

GAVAN HENDERSON.

Witnesses:

F. F. RAYMOND, 2d, J. M. DoLAN.

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