US875807A - Mechanical movement. - Google Patents

Description

PATENTED 1130.24, 19d?.

W TNESSES Homey UNITED STATES PATENT OFFICE.

WARREN H. TAYLOR, OF STAMFORD, CONNECTICUT, ASSIGNOR T THE YALE a TOWNE MANUFACTURING COMPANY, OF STANFORD, CONNECTICUT.

COMBINATION-LOCK.

Specication of Letters Patent.

Patented Dec. 24, 1907.

To all 'whom 'it muy concern:

Be it knoxm that I, WARREN H. TAYLOR, of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Im rovements in Combination-Locks; and I o hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enab e others skilled in the art to which it appertains to make and use the same.

Mv invention relates to an improvement in com ination locks, and particularly to means for detachably securing the nested tumblers and tumbler curb in lace.

Heretofore it has een the usual custom to thread the tumbler post and screwr the nested tumblers and curb in place thereon. I This is objectionable owing to the difliculty experienced in getting the tuniblers in proper position and at the same time have the drivlng pin on the. cam properly connected with the fly on the inner tumbler.

The object of my invention is to overcome the objection above noted, and provide simple and effective connecting means between the llock casing and the tumblers, whereby the tumblers and curb properlyY nested, can be readily and quickly placed in proper position with relation to the parts with which they coperate. Y

M- invention consists in the parts and com inations of parts as will be more fully eX lained and pointed out in the claims.

the accompanying drawings Figure 1 is aviewin rear elevation of my improv ed lock the rear plate being removed. Fiv. 2 is a view in longitudinal section the rear plate being in place. Fig. 3 is a view invertir-al transverse section taken through the tumbler ost, and Fig. 4 is an enlarged view showing t e spring latch mounted in the lock case and also show' U a section of the curb, and Fig. 5 is a view o the sleeve and curb removed and shovn'ng the tumblers, interposed Washers 45 and the seats for the tongues of the latter.

1 represents the lock case, and 2 the tumbler post ha a plain face on which the Sleeve 3 secure to the tumbler curb 4 is journaled. The tumblers 5 are mounted to rotate, and are secured against movement endo-"isc on the sleeve, and are rotated by the spindle 6 and connecting gearing in the usual and well known manner.

The tumbler curb 4 is provided with two 55 forwardly projecting lilgs 7 each of which is provided on its outer face with a shoulder 8 which engages a corresponding shoulder 9 on the lu s 10. These lugs 10 are secured respective y to the upper and lower sides of the lock case, and the shoulders thereon are so located as to engage the shoulders 8 on the lugs projecting inwardl" from the tumbler curb 4 and thus lock t e sleeve 3 carrying the tumblers 5 against outward movement. The lug l() located at the too of the case 1 e5 is recessed to receive the sprin pressed sliding pin 11 which latter is provided with n tongue 12 mo e in a slot 13 formed in the lower face of said ug, and normally resting within a slot 14 in the tumbler curb 4. 70 With the tumblers 5 seated on the tumbler post 2 and the shoulders 8 on the lugs 7 of the curb 4, engaging the shoulders 9 on the lugs l0 on the case, and the curb 4 locked against rotation bv the tongue 12, it will be seen that the tumblers will be positively retained in their proper positions with relation to the parts with which they coperate.

To release the curb 4 and tumblers 5, it is simplv necessary to force the pin 11 for- 80 Wardlvy, thus carryin the tongue 12 out of the slot 14 in the tum ler curb 4, and leaving the latter free to be turned. By now tuming the curb, the shoulders 8 on the lu 7 thereof will be disengaged from the shou der 9 of the lugs 10 on the case l, which releases the nest of tumblers and curb and permits them to be removed, for changing or reassembling.

To replace the tumblers, the sleeve 3 is 90 placed on the post 2 and the curb 4 turned or partly rota-ted until the shoulders 8 engage the shoulders 9 and the tongue 12 enters the slot 14 in the periphery of the curb, thus locking the curb against any movement on the post. This construction provides a very secure attachment and accurate adjustment between the driving cam and the inner tumbler- It is customary in locks of this kind to locate washers between the tumblers so as to prevent a moving tumbler from moving the next adjacent tumbler by its frictional contact therewith. With the present construc.

tion the lugs 7 projecting from the curb pro 105 thus prevented from tiu'ning and prevent 110 ,removal by the tumblers as disclosed in said patent, conse uently in order to get at the tumblers, it wiqll be necessary to first set the tumblers, after which the back, or cover late can be moved in the direction of the olt and when clear of the hol lugs can be iifted from the lock case. en the cover plate is in place it is held so by the enl ment of the tongue 18 thereof with periperies of the tumblers and it 1s only when the gates 19 in the tumblers are set to alme with the to e 18, can the cover plate be moved in a direction to disengage same from the 'lock case.

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 of parte shown and described, but,

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

1. In a combination lock, the combination with a lock case and tumbler post, of a sexies of connected tumblers and a tumbler curb the latter b wholy Within the lock case, means carried sai curb, .engaging means on the lock case for locking the curb and tumblers in position on the post, and means for rotating the tumblers.

2. In a combination iock the combination with a lock case and tumbler post, of a series of assembled tumblers and a tumbler curb the latter being wholl within the lock case, means for holding sai tumblers and curb on the post, means for preventing the curb from rotating and means for rotating the tumblers.

3. In a combination lock, the combination with a lock ease and tumbler post, of a series of nested tumblers and a tumbler curb mounted on said post the said curb being wholly within the loclr case means on the curb engaging means on the case for preventing the tumbler and curb from moving lengthwise of the post, a spring catch e aging the curb for preventing the latter om rotating on the post and means for rotating the tumblers.

4. In a combination lock the combination with a lock case and a tumbler post, of a-series of nested tumblers and a tumbler curb mounted on said ost, a shoulder on a part projecting from t e curb engaging a shoulder on the case for preventing movement of the tumbler and curb endwise of the post a spring catch for preventing rotation of t e curb when the parts are assembled, and means for rotating the tumblers.

5. In a combination lock the combination with a lock case, and a tumbler post, of a series of nested tumblers and a tumbler curb mounted on said post, lugs projecting forwardly from said curb, washers interposed between the tumblers and eng 'ng said lugs, means for locking said cur against movement in the direction of the length of the post, means for preventing the curb from rotating on the post, and means for rotatin the tumblers.

6. he combination with a lock case and tumbler post, of a series of nested tumblers and a tumbler curb mounted on said post, lugs projecting forwardly from said curb, washers inte d between the tumblers and provided with tongues which rest in grooves in said lugs, means for preventing the curb from moving in the direction of length of the post, means for holding the curb against rotation on the post and means for rotating the tumblers.

In testimony whereof, I have signed this specication in the presence of two subscribing witnesses.

WARREN H. TAYLOR.

Witnesses:

SCHUYLER Mnnnrr'r, WILLIAM P. MosELY.

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