US1332479A

US1332479A - Closure-fastener

Info

Publication number: US1332479A
Authority: US
Inventors: Wilkinson Cora May
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-10-13
Filing date: 1919-10-13
Publication date: 1920-03-02
Anticipated expiration: 1937-03-02

Description

C. M. WILKINSON CLOSUREFASTENER.

APPLICATION FILED ocr. l3. I9I9.

1,332,479. Patented Mar. 2, 1920.

/W: W150 (7M Wilkinxm A TTORNE-YS WlTA/E 9 3 INVENTOR nivrrn CORA MAY VIILKINSON, 0F HARTFORD, CONNECTICUT.

CLOSURE-FASTENER.

Specification of Letters latent.

Patented Mar. 2, 1920.

Application filed October 18, 1919. Serial No. 330,352.

To all who/2t may concern,-

Be it known that 1, Coin IVIAY lViLKIN- son, a citizen of the United States, and a resident of Eittltfold, in the county of Hartford and State of Connecticut, have made certain new and useful Improvements in Closure-Fasteners, of which the following is a specification.

My invention relates to closure fasteners and more particularly to an improved bolt for doors, windows or the like.

An important object of my. invention is to provide an improved bolt adapted to securely lock the closure such as a door or window, in closed position, and which may be easily set to lock the door or window ajar or in slightly opened position.

Another object is to provide an improved bolt of simple and durable construction, easy and inexpensive to manufacture, and reliable in operation.

Other objects and advantages reside in certain novel features of construction, arrangement and combination of parts, and will become apparent as the description procoeds, reference being had to the accompanying drawing forming part of this description, and in which:

Figure 1 is an elevational view of my improvement showing the same locked in closed position;

Fig. 2 is a perspective view showing the same locked ajar;

Fig. 3 is an elevational view showing my improvement with the bolt just removed from the casing' to release the closure.

Referring to the drawings, it will be seen my invention includes a swinging closure A, such as a door, window, or the like, and .its cooperating stationary structure B such as a door-jamb, window frame or the like. A keeper O is secured to the stationary structure as shown in the drawing. A bolt casing D is mounted upon the swinging closure, and has its base plate E secured thereto.

The bolt casing D is provided with a longitudinal slot 5 therein, and extending to one end thereof, and is further provided with a lateral slot 6 communicating with the inner end of said longitudinal slot, as shown. A bolt 7 is mounted in the bolt casing, and has an operating knob 8 secured thereto. The shank S of the operating knob is adapted to be engaged by the walls of the longitudinal and lateral slots to be guided to a longitudinal and lateral movement, respectively, and to be constrained or limited in its inward movement by the inner wall of said lateral slot. The operating knob is so disposed on said locking bolt as to divide the same into a long looking portion 7 in a short non-locking portion 7". 1

A chain or like flexible member 9 is secured at one end to an eye 10 fastened to the stationz'iry structure and preferably to the keeper thereon, and has at its other end a swivel 11 in the form of a ring mounted on the shank 8 of the operating knob.

lVhen it is desired to lock the closure in closed position, the bolt is inserted in the bolt casing with the locking portion thereof foremost, as shown in Fig. 1, until the looking portion is engaged with the keeper. The bolt is then rotated downwardly until the operating knob thereof engages in the lateral slot, as shown. The effect of the chain in this adjustment is to maintain the operating knob in the lateral slot, and thereby maintain the bolt in locked position. If it is desired to lock the closure slightly open or ajar, the bolt is removed from the bolt casing as shown in Fig. 3, and turned 180 degrees or reversed, the swivel connection of the chain with the operating knob readily accommodating this movement, and the short or non-locking end of the bolt is inserted foremost in the bolt casing. V hen the bolt is shot to locking position the operating knob limiting this inward motion arrests the movement of the bolt when it has assumed the position shown in Fig. 2, and in this position the non-locking portion is presented to the keeper but of course does not engage the same. The chain, however, serves to effectively lock the door ajar or in slightly opened position. in this connection. it is to be noted that in order to release the door from the locking action of the chain, it is necessary to first close the same in order to remove the bolt from the bolt casing. This of course precludes the possibility of the entrance of any unauthorized person.

A device of the character described including in combination with a swinging closure, an associated stationary structure and a keeper secured to said stationary structure, a bolt casing secured to said swinging closure and having a single and continuous slot therein extending longitudifine a long looking portion adapted to en- 10 gage said keeper and a short non-locking portion adapted When presented to said keeper to terminate at the edge of said swinging closure, and a chain secured to said keeper and having a swivel at its oppo- 15 site end mounted on said operating knob, all as and for the purposes set forth.

CORA MAY WTLKINSON.