US818414A - Combination-lock. - Google Patents

Description

No. 818,414. PATENTED APR. 24, 1906. D. H. CLEVELAND.

, COMBINATION LOOK.

APPLIOATION FILED MAY 15, 1905.

IINITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed May 15, 1905. Serial No. 260,419.

To all whom, it may concern:

Be it known that I, DAVID H. CLEVELAND, a citizen of the United States, residing at Kansas City, in the county of Wyandotte and State of Kansas, have invented certain new and useful Improvements in Combination-Locks, of which the following is a specification.

My invention relates to improvements in combination-locks; and my object is to provide an interchangeable lock of this character which may be used to advantage as a door-lock, drawer-lock, trunk-lock, padlock, or, in fact, for most any purpose to which a lock may be applied.

The invention consists in the novel construction, combination, and arrangement of parts hereinafter described, and pointed out in the claims.

In order that the invention may be fully understood, reference will now be made to the accompanying drawings, in which Figure 1 represents an elevation of the lock with its back plate removed. Fig. 2 is an elevation of the back plate looking toward its inner surface. Fig. 3 is an elevation looking toward the inner surface of an intermediate plate forming part of the invention. Fig. 4 is an elevation looking toward the outer surface of a face-plate forming part of the invention. Fig. 5 is a transverse section of the lock, taken on line VV of Fig. 1. Fig. 6 is a broken elevation of the upper portion of the lock with the face-plate removed, said lock being provided with a shackle whereby it is converted into a padlock. Fig. 7 is a broken elevation of the upper portion of the lock with the face-plate removed, showing its application as a trunklock. Fig. 8 is a detail view of one of the knobs employed in carrying out the invention.

In carrying out the invention I employ three plates in constructing the lock-frame, consisting of a face-plate 1, an intermediate plate 2, and a back plate 3, all of which are secured together by rivets 4.

Back plate 3 is provided with a longitudinal groove 5, communicating with four transverse grooves 5, 6, 7, and 8, which are narrower than the longitudinal groove. Said grooves are for the reception'of a bolt 9, provided at its rear end with an integral bar 10, carrying rearwardly-extending arms 11, 12, and 13, slidingly arranged in grooves 5, 7, and 8, and a rack-bar 12 slidingly arranged in groove 6. Bolt 9 is thrown outwardly and inwardly to the positions shown in Figs. 1 and 5 by means of a pinion 13 intermeshing with the rackbar, and a knob 14, rigidly secured to one end of a spindle 15, upon the opposite end of which the pinion is rigidly mounted. Pinion 13 operates in a recess 16, formed at the juncture of grooves 5 and 6, and its upper surface, together with those of the arms and rack-bar, is flush with the inner surface of the back plate. Knob 14 operates in an opening 17 in the face-plate, so that its outer surface will not project beyond the outer surface of the face-plate and thus be in the way when the lock is applied {0 g. drawer or trunk or is being used as a pad- The rear portions of arms 11 and 12 and rack-bar 12 are provided with shoulders 18, 19, and 20, which operate in grooves, 21, 22, and 23, respectively, in the adjacent side of the intermediate plate. Bolt 9 also has a shoulder 24 operatively arranged in a groove 25 in the adjacent side of the intermediate plate and communicating with the forward end of groove 23.

The rear ends of grooves 21, 22, and 23 communicate with circular sockets 26 in the intermediate plate for the reception of snuglyfitting tumblers 27, having marginal flanges 28, provided with openings 29 to permit shoulders 18, 19, and 20 to passinto and out of engagement with said flanges when the openings 29 are in conincidence with said shoulders.

Tumblers 27 have integral sleeves 27 eX- tending through the intermediate plate for the reception of spindles 30, telescopically arranged therein. Spindles 30 are rectangular in cross-section, and their outer terminals snugly fit within square openings in knobs 31, so that the tumblers may be turned by said knobs. Knobs 31 are arranged in open ings 32, so that their outer surface will be flush with the faceplate.

Knobs 31 are provided with indicators 33, which, with the graduated margins of openings 32, permit any one familiar with the combination to operate the lock. As the knobs operate independently of each other and the indicators may be set directly over openings 29 or at any angle thereto, it is obvious that the combination may be readily changed when desired. For instance, if the indicators be arranged so that it will necessitate the turning of the knobs a distance of inner end of arm 13.

three points to bring openings 29 in line with shoulders 18, 19, and 20 one or more of said indicators, together with their knobs, may be so adjusted upon spindles 30 that it will necessitate their being turned a greater or less number of points to bring the openings in coincidence with said shoulders. Hence when the locks are shipped from the factory no two combinations need be alike. Said adjustment may be accomplished by removing and turning the knob the desired distance and then replacing it upon its spindle.

When the lock is applied to a door, drawer, or other object where it is desired to place the lock on the inside and the face-plate on the outside, spindle 30 is drawn outwardly to pass through the wood, as shown in Fig. 5; but of course, if desired, the lock may be mortised in the wood in the customary manner. When the lock is applied to a door or drawer, a keeper 34 for the reception of bolt 9 may be employed; but when the lock is applied to a trunk a notched keeper 35, secured to the trunk-lid 36, is used for the reception of the The device may be readily converted into a padlock by securing face-plate 1 directly to one side of the intermediate plate and providing the back plate with a shackle 37, which is pivot-ally secured at one end in a recess 38, arranged in the back plate. The freeend of the shackle has a notch 39 for the reception of the rear end of arm 13, (see Fig. 6,) said free end being permitted to engage the arm through. a groove 40, communicating with one end of groove 8.

From the above description it is apparent that the openings 29 must be arranged in coincidence with the shoulders on the arms and rack-bar before the bolt can be thrown inwardly and outwardly, and after the bolt has been thrown to either of these positions it may be locked from further movement by turning one or more of the tumblers until their flanges engage the shoulders.

Although I have shown three tumblers,

this number may be enlarged or diminished, and I reserve the right to make such other changes as properly fall within the spirit and scope of the invention.

Having thus described my invention, What I claim, and desire to secure by Letters Patent, is

1. A look consisting of a frame, a bolt carried thereby, a member carried by the bolt, means for throwing said bolt inwardly and outwardly, a tumbler journaled in the frame adapted to engage and disengage the member on the bolt, a sleeve integral with said tumbler, a spindle telescopically arranged in said sleeve, a knob secured to the outer end of said spindle, and an indicator carried by said knob adapted to cooperate with the graduated margin surrounding the knob.

2. A look consisting of a back plate having a longitudinal groove communicating with a plurality of transverse grooves, an intermediate plate provided with sockets and trans verse grooves which latter register with the transverse grooves in the back plate, a bolt slidably arranged in one of said transverse grooves, means for operating said bolt, a bar formed integral with the bolt and arranged to slide in the longitudinal groove, shouldered arms formed integral with the bar and arranged to slide in the transverse grooves, tumblers journaled in the sockets and providedwith marginal flanges adapted to engage and disengage the shoulders on the arms, sleeves on said tumblers, spindles connected to said sleeves, knobs secured to said spindles, and a face-plate having openings for the reception of the knobs, said faceplate, intermediate plate, and back plate being suitably secured together.

In testimony whereof I aflix my signature in the presence of two witnesses.

DAVID H. CLEVELAND.

Witnesses HATTIE CLEVELAND. J OSIE GERos.

Images