US186393A - Improvement in combination-locks - Google Patents

Description

G. WINTER. COMBINATION LOCK.

momma UNITED STATES PATENT OEEToE.

GEORGE WINTER, OF JAGKSONSVILLE, VIRGINIA.

IMPROVEMENT IN COMBINATION-LOCKS.V

Specification forming part of Letters Patent No. 186,393, dated January 16, 1877; application iiled November 16, 1876.

To all whom it may concern:

,Be it known that I, GEORGE WINTER, of Jacksonsville, in the county of Floyd and State of Virginia, have invented a new and useful Improvement in Combination-Locks; and I do hereby declare that the following is a full, clear, and Vexact description of the same.

'My present invention is an improvement upon that for which I have received Letters Patent No. 181,756, dated August 29,1876, and to which said patent reference is made for the purpose of explaining the operation.

and advantages of this invention more fully than may be apparent from the following de scription.

The invention relates to the construction and arrangement of parts, as hereinafter described and claimed.

ln the accompanying drawing, forming part ot' this specification, Figure 1 is a side elevation of the lock. Fig. 2 is a sectional elevation ot' the lock. Fig.3 is a longitudinal section on line a' as, Fig. 2; Fig, 4, a cross-section on line y y, Fig. 2. r

As in my previous invention, the rotary notched pins A, for locking the bolt, project on both sides ot' the lock-case B, so that they may be operated from either side thereof.

ABut in this instance the pins A are arranged in three` parallel rows, and engage or lock directly with the bolt C, in place of engaging `with the sliding dogs, and thus with the bolt intermediately, as in my previous invention.

The bolt is placed in an elongated recess in the lock-case B, and provided with a lengthwise horizontal slot. `One side of this slot has half-round notches a., and similar notches b are also formed in the upper and under sides -of the bolt. A row of pins, A, is arranged to engage with a row of notches, a or b. Each of the pins is cut away on one side, thus leaving asemi-cylindrical portion,.c, and also provided with a circular flange or collar,

d, for preventing the withdrawal ot' the pins from the loclccase. The bolt Gis operated by a rack, e, andpinion f, the latter fixed on a transverse knob-spindle, G, as shown. A at spring, H, is secured to the rear side or Wall of the recess in `which the bolt works, and its free end is bent or curved inward,

to engage the contiguous' end of the latter,

and thus prevent itbeing withdrawn from the keeper until the spring is depressed. The spring bears against the circular flange of the pin f at the end of the middle row, and the said pin is adapted to slide in its bearing sufticiently to press the spring back out of engagement with the bolt, as will be readily understood.`

When the bolt O is withdrawn into the case B the semi-cylindrical portions c of the pins are held out ot' engagement with the halt'- round notches a b of the bolt, the flat side of the parts c lying in contact with the iiat or straight portions ofthe bolt, which intervene orV lie between every two of the notches a a and b b. But when the bolt is shot (by depressing the spring and turning the knobspindle) the notches of the bolt are brought directly opposite the pins A, and the latter may then be turned or adjusted to cause their semi-cylindrical portions c to enter the notches a b. The free end ot' the spring also catches over the end ofthe bolt when the bolt has been shot. The bolt is thus held locked, and cannot be withdrawn, except the spring be depressed and the pins readjusted to bring their semicylindrical portions c out of the notches in the bolt.

The means ot' determining when all the pins have been so adjusted are ifingers g, which are inserted in, and project radially from, the pins on both sides of the case B, so that the lingers point to the proper numerals in the inscribed circles on the faces ot' the lockcase.

In this instance the pins are set on the following combination: T ,25% g g T65 ,-76 1% ,9: 1,-" 1-1 152 l; 1-1that is to say, when the lingers ot' pins marked 1, 2, 3, 4, 5, &c., point, respectively, to the numbers 1l, 13, 1, 2, 3, 85e., it is known that the pins are adjusted properly to allow the-free movement of the bolt.

The combination may, ot' course, be varied almost indelinitely by setting one or more ot' the fingers to point to a di'erent numeral in the circle.

I do not claim, broadly, the arrangement ot' locking-pins with a door-bolt, having semicircular notches to receive the same; but

What I claim is- The combination, with the slotted bolt, provided with notches a b, of the pins A, the sliding pin f', and spring H, substantially as and for the purpose specified.

GEORGE WINTER. Witnesses: y

HARVY D. WELLS, HENRY T. STUMP.

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