USRE10012E - Wakren h - Google Patents

Description

' W. H. TAYLOR, Assignor to THE YALE Locx MANUFACTURING COMPANY.

LOGK.

Reissued Jan. 17

L'SSES N PETERS. PhotmLilhegrnphan Waihingimz. u. c.

UNITED STATES PATENT OFFICE.

WARREN H. TAYLOR, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE LOCK MANUFACTURING COMPANY, OF SAME PLACE.

LOCK.

SPECIFICATION forming part of Reissued Letters Patent No. 10,012, dated January 1'7,

Original No. 172,899, dated February 1, 1876, Reissue No. 8,379, dated August 20, 1878. Application for reissue filed August 22, 1881.

To all whom tt may concern:

Be it known that I, WARREN H. TAYLOR, of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Drawer or Cabinet Locks; and I do declare that the following is a full, clear, and exact description of my invention, which, when taken in connection with the accompanying drawings, will enable others skilled in the art to practice my invention.

My invention relates to that class of drawer or cabinet locks using a sheet-metal key and having a projectingkey barrel or nosing.

My improvements consist in constructing such locks in the manner hereinafter set forth and claimed. r In the accompanying dra\vings,forming part of this specification, Figure I is a front elevation. Fig. II is a side elevation. Fig. III is a vertical section. Fig. 1V to Fig. VIII are details of mylock, and Fig.1X represents the key.

Like letters ofrefercnce indicate like parts in all the figures.

The general construction of my improved lock is as follows:

.X is the back plate of the lock.

Y is the frontplate, formed with a barrel or nosing, Z.

A, Fig. IX, is thekey, having an end pivot, a guide-notches a to, hits a (0 and wings a a, both edges being'alike.

B B are double tumblers, vibrating in opposite directioiis. For economy I pivot them upon one fixed center, b. b b are the usual tumbler-springs, the free ends of which press against the flanges or sides of the front plate, Y.

C, Fig. VIII, is the talon-levcr, which turns on a stationary pivot, c, the free or vibrating end 0 of which fits into the talon d of the bolt 1). The in wardly-curved edge ofthe lever end 0 forms the intermediate talon, against which one of the key-wings a or c strikes when throwing the bolt the full distance. The bolt D is provided with a fence or stump, d projecting therefrom upon the side of the bolt upon which the tumblers lie.- Each tumbler at its free end is made broader. than the distance through which the tumblers are moved by the key, the object being to provide, first, when the tumblers are in the locked position and the bolt; out, a solid surface of each turnbler at its free end, against which the stump may rest; and, second, at the sametime to permit the bolt to be withdrawn or thrown forward by the key when the gatings of all the tumblers are brought in line.

Fig. VI represents the closed. Fig. VII represents them fully open. E, Fig. III, is the rotating key-guide. (Shown in elevation in Fig. IV.) It is secured in the outer end of the barrel or nosing Z, and is capadouble tumblers bio of rotation therein, and its key-hole conforms to the section of the shank or blade of the key at its largest part. Theinner portion of the barrel Z (represented at 2) serves to assist in guiding the key atiug the lock, and the rotating key-guideE, combined with the end pivot, a of the key, and the end bearing, so, formed in the back plate of the lock, serve to keep the key central while being operated, both to set the tuinblersand throw the bolt. Within the barrel or nosing is formed the slotted retaining ring or flange into position for oper- F, (shown in front elevation, Fig: V,) with the rotating key-guide E removed. Th e two parts of the said flange enter, when the key is revolved, respectively, the notches a a, formed in the margin of the keyshank and at opposite points thereon. taining-flange in connection with the notches The action of the slotted 1;e-

a a of the key is to hold the key and prevent its beingwithdrawn except when the lock is in the locked or unlocked positions, or, in other words, except when thekey shank is vertical.

In my lock the key is inserted between the series of tumblers, and in unlocking the hits a a act upon the operative faces of the tum blers to force them apart, separating those of the sericswhich lie to the right of the key from those which lie to the lei't of the key. The tumblers B B are superimposed upon the pivot b, and the operative face of no posite the operative face of any other tumbler.

It is evident thatany number of tumblers may make up the series, and so long as the tumblers are superimposed so that those on the right of the key are not opposite those on tumbler is op- Y til it is again vertical 7 looking or unlockin series of tumblers with either edge uppermost,

and at the same time successfully operate the look. This benefit could not be obtained with locks having their tumblers opposite each other, or rather with locks the operative faces of whose tumblers faced one another on the right and the left of the key. With such locks having a key hitted alike on both edges, so as to operate the lock without regard to which edge of the key is uppermost when inserted, double the number of tumblers must be used to obtain the variations in the bittings of the key that are necessary ith my plan.

The action is as follows: The key A, being equally hitted on both edges, may be passed either edge up through the rotating key-guide E and through the vertical slots of the'retaining ring or flange F. The key will penetrate into and through the series of two ormore tumblers,'and its end pivot, M, will enter into the bearing w, The notches a a will then coincide with the retaining ring or flange, and the key can be turned a half-revolution either way for During such half-revolution the unslotted portions of the retaining ringor flange willenga'ge with the notches a a and prevent the withdrawal of the key unand the bolt is either fully in or fully out. In the act of locking, the key on being turned/ a quarter-revolution in the direction of the arrow, Fig. VIII, causes the parts to reach the At this time,

position there shown. and when in such position, the

' hits a or, being horizontal, fully open the tumblers, and the fence d can escape, as in Fig. VII. As the key has like bits upon its two edges, it may be inserted either edge up, and each of the tumblers of the superimposed series will be acted upon byabit of proper depth; but said bit may be the one formed upon one or the other of the edges of the key indift'er ently. Simultaneously withthe said'quarterturn of the key,its winga, (oroneof the wings,) by action upon the talon-lever (J, has carried the latter upward to the horizontal position, half-throwing the bolt D, as shown in Figs. VII and V'llI. In the succeeding quarterturn the key again becomes drawal, as in Fig. VI, leaving the tumblers vertical for with closed beneath the fence d and the bolt D looked, as in Fig. I. The backward half-revolution of the key effects the aforesaid movements in reverse order for; unlocking.

By my plan the front plate, Y, of the lock is notpcnetrated by the rotating key-guide, which lattefis located wholly within the nosing or barrel Z and in front of the slotted retainingflange F.

What I claim, and desire to secure by Let- .ters Patent, is

1. In a look, a series of two or more pivoted vibrating tum blers no two of which are opposite, and which are arranged to be operated successfully by a flat or plate key bitted alike Q on both edges and inserted either edge up through the series,-snbstantially as herein described.

2. A flat or plate key bitted alike on'both edges and provided with indentations or'notches opposite each other, one on eitheredge, in combination with a series of pivoted oscillating tumblers, and a slotted retaining flange or rin g to interlock with the indentations or notches and prevent the withdrawal of the key from the lock except when said'key is verticah-and toassist in holding said key longitudinally while it is moving the tumblers to lock or unlock the lock, substantially as herein described.

3. In a lock constructed for aflat or plate key, a vibrating talon-lever, its inner curved *edge being the intermediate'talon for the keybit andits outer or free end fitted into the bolttalon and actuating the bolt, substantiallyas described.

4. The combination of a bolt "carrying a stump or fence with'aseriesof'two "or more tumblers which are pivoted upon a common center, but no two of Wlllt'h are opposite, the free end of said tumblers being broader than the greatest distance through which'the tumblers are moved by the key, so that gatiugs may be made in said tumblers, into which the stump 'or fence of the lock may pass-wheirthe lock is unlocked.

5'. In a look, a passage or key way through which a flat or plate key maybe inserted, and in entering which thekey is first passed through a rotating keyguide, next through a slotted retaining-flange, and lastly through a series of vibratingtum'blers,thelongitudinal'movemen't of the key being finally arrested by a stop placed in the rear of the vibrating and superimposed series of tumblers, substantially as herein described.

WARREN H. TAYLOR. Witnesses:

Gno. E. VVHI'IE, SGHUYLER MERRITT.

IIO

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