US460191A

US460191A - adams

Info

Publication number: US460191A
Authority: US
Publication date: 1891-09-29
Anticipated expiration: 1908-09-29

Description

(No Model.)

A. D. & F. L. ADAMS. BOLT.

No. 460,191. I Patented Sept. 29, 1891.

' ii ll|llllllllllllllllllllllli \M i dire QZOZ Jim UNITED STATES PATENT OFFICE.

ARCHIBALD D. ADAMS AND FRED. L. ADAMS, OF PROPIIETSTOIVN, ILLINOIS.

SPECIFICATION forming part of Letters Patent N 0. 460,191, dated September 29, 1891. Application filed February '75 1891. Serial No. 380,585. (No model.)

T to whom, it may concern:

Be it known that we, AROHIBALD D. ADAMS and FRED. L. ADAMS, citizens of the United States,residingat Prophetstown, in the county of WVhiteside and State of Illinois, have invented a new and useful Door-Lock, of which the following is a specification.

This invention relates to door-locks, and has for its objects the improvement of the [0 same in the matters of durability, cheapness,

and security.

With these objects in view the invention resides in the various novel details of construction and in the combination of parts hereinafter fully described, and particularly pointed out in the claims.

I11 the drawings, in which we have illustrated our invention and in which like letters of reference indicate corresponding parts, Figure 1 shows a perspective view of a stabledoor provided with our improved lock. Fig. 2 is a side elevation of the lock, the front plate having been removed. Fig. 3 is a detail perspective View of the keeper-plate, and Fig. 4 is a View, partly in section, of a door.

In the drawings, the letter A designates a casing or door-opening, to one side of which is hinged the door B. To the casing on the side opposite to which the door B is hinged 0 are fastened the hasps a a, which extend out from said casing adistance equal to the thickness of the door, or rather a distance equal to that level within or Without the door upon which the bolts of the lock work.

0 indicates the lock, and D the keeper plates, which are necessary adjuncts to the lock on account of its peculiar construction. The lock 0 is provided with a case E.

F F designate the lock-bolts, which extend from the case E to the keeper-plates D. The

bolt F is provided with a shoulder f near one end and with a loose collar f between that end and the case E. Between the collar f and the shoulder f there is a coiled spring 5 surrounding the bolt, which tends normally to press the bolt outward. Both bolts F F extend within the casing and are attached therein to frames f f These frames f and f are counterparts of each other in every particular. They are both in shape rectangular parallelograms and are both toothed upon one side interiorly, for a purpose to be pointed out. Each one of these frames is provided with a lug f to which the bolts are attached, the only difference in the two cases being that the lug upon the frame, which is connected to the upper bolt, is upon the same side with the teeth, whereas the lug, which is connected to the frame to which the lower bolt is joined, is upon the side of the frame opposite to that which is toothed.

G' indicates a small cog-wheel, which is fast upon a shaft g, journaled in the case E and having upon its outer end a knob g. The cog-wheel G fits within the two frames f and f intermeshing with the toothed sides of both.

In putting the lock together the frames f and f are placed in such position as they will hold when the bolts F and F are thrust outward to their greatest extent. Gis then placed within the frames f and f and by such position its teeth will be intermeshed with the toothed sides of these frames. The collar f will rest against the outside of the case E, and upon the turning of the knob g the frames will be retracted toward each other, therebydrawing in the bolts F F, and in so doing cramp the spring between the should er f and the collar f. It will be evident that as soon as the pressure upon the knob is released the spring will push the bolt F away from the case, and in so doing will cause the frame f to resume the position originally occupied. As the frame f moves to its normal position under impulse from the coiled spring, as above described, it will cause the cog-wheel G to revolve, and as this meshes not only with the frame f but also with the frame f and the teeth in these frames being arranged on opposite sides, the revolution of the said cogwheel will cause the framef to resume its normal position and in so doing to thrust the bolt F outward from the case.

The keeper-plates D D are located over the perforations b, which are provided in the door B for the purpose of enabling the hasps a a to extend through said door. The keeperplate D is provided with a slot d, with a guideloop (1, Within which the bolt F is allowed reciprocating motion. The keeper-plate D is provided with a slot 61, similar to that in the keeper-plate D and for a similar purpose that is, for the purpose of receiving the hasp 7 I The cog-wheel pressed catch d will cover the slot (1 and be,

in line with the opening of the guide-loop d,

so that when the pressure upon the knob has been released and the spring-actuated bolt F tends to thrust forward the said springactuated bolt 1 will be restrained from motion by its end resting against the side of the catch 01 It will also be evident that upon the mere act of closing the door the bolts will thrust forward, as the said act of closing the door will cause the hasps a to project through the openings b and through the slots d, and in so doing to lift the catch 01 thus releasing the bolts and locking the door.

From the foregoing description it will be quite evident that this invention is a great improvement in door-locks, and especially in cases where a strong automatic lock is not only desirable but necessary.

We have illustrated the invention as applied to a stable-door, and its efficacy in this position will be apparent; but it may be applied in various other places with advantage.

Having thus described our invention, what we claim, and desire to secure by Letters Patent, is-

1. In a door-locking mechanism, the combination, with the oppositely-acting bolts F F, the bolt F being provided with a shoulder f and a loose collar f and a spring coiled upon the bolt between said shoulderand collar, of casing E, the rectangular frames f f arranged within the casing in such manner that they are allowed a slight reciprocating motion upon'each other, the said frames f f having their inner sides toothed, and a cogwheel G, fast upon a shaft g, provided with a knob g and meshing with the teeth of the frames, substantially as and for the purpose set forth.

2. In a door-locking mechanism, the com bination, with the oppositely-acting bolts F F, one of which is spring-actuated, of the easing E, the rectangular frames f f arranged within the casiu g in suchmannerthat they are allowed a slight reciprocating motion upon each other,vthe said frames f f having their inner sides toothed, a cog-wheel G, fast upon a shaft g, provided with a knob g and meshing with the teeth of the frames, the staples a, the keeper-plates D D, and a springpressed pivoted catch (1 in line with the bolt F, substantially as and for the purpose set forth.

In testimony that we claim the foregoing as our own we have hereto affixed our signatures in presence of two witnesses.

AROI-IIBALD D. ADAMS. FRED. L. ADAMS.

Witnesses:

WALTON D. SMITH, ASA W. OoNNER.