US540019A

US540019A - Door-check

Info

Publication number: US540019A
Authority: US
Publication date: 1895-05-28
Anticipated expiration: 1912-05-28

Description

(Nol Model.)

W. A. GAY. DOOR' CHECK.

540,019. Patented Ma 28, 1895. l F'IlEzl. y

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UNTTED STATES PATENT` Grinch.

WILLIAM A. GAY, OF NEVARK, NEW JERSEY.

Doon-CHECK.

SPECIFICATION formingpart of Letters Patent No. 540,019, dated May 28, 1895.

Application led May 24, 1894- Serial No. 512,324. (No model.)

To a/ZZ whom it may concern..- parallel with each other. The ends of the rod Be it known that I, VILLIAM A. GAY, a citiare bent outward at right-angles to the body zen of the United States, residing in Newark, to form the journals gx. When the bail is Essex county, New Jersey, have invented cermounted in its bearings the space c, between 55 tain new and useful Improvements in Doorits branches, will be wide enough to snugly Checks, of which the following is a specifiembrace the neck bx, of the bolt but allow it cation. to play freely between the branches, but it My invention relates to the class of doorwill not be wide enough to allow the head, checks designed to replace the ordinary chain b', thereof to pass between the branches. 6o 1o which permits a door to stand ajar but will The space between the cheeks e, will suffice, not allow itto be opened wide enough for a however, to allow the head of the bolt to play person to enter; and the object of the invenbetween them. tion is to provide a simple and inexpensive On the innerface of each cheek e, is formed device which, when not in use, will present no an inturned flange, e", (see Fig. 4) which has a 65 projecting parts on either the door 0r door-casrecess or notch, e', cut in it, and when the bail ing to tear the clothing or injure the person. is turned from either of its folded positions to In the accompanying drawings I have illusits perpendicular position the branches theretrated an embodiment of my invention. of will spring outwardly into said notches;

Figure 1 is a view on a small scale, showthat is, the inclined sides of the recesses, as 7o 2o ing the check mounted, the door being reprethe bail is turned from its folded positions,

sented as closed and the check set to allow tend to throw it into the perpendicular posithe door to open to a limited extent. The tion and to hold it there, as being the posiother figures are on a larger scale.y Fig. 2 is tion where there is the least tension on the a face view of the check set as in Fig. 1. Fig. expanding spring g. 75 z5 3 is a similar view to Fig..2, but showing the When the check is not -in use, the bail g, check set for ordinary use of the door. Fig. 4 may, if there is room, be turned -back over isasectional view on line 4 4in Fig. 2andillusthe door-casing to a nearly horizontal positrating in dotted lines also the operation of tion, as represented in Fig. 3, and the bolt be the check. Part of the bolt-casing is broken drawn into its casing. The door is then free 8o 3o away in Figs. 3 and 4. to be opened and closed at will. If there is X indicates a part of a door and Ya part ofnot room to turn back the bail fully, owing the door-casing. Sufficient of each of these to the'door opening, being set close to a wall parts is shown to illustrate the manner of or partition, or because of the casing having mounting the elements of the check thereon. a heavily molded trim, the bail need only be A 3 5 On the door is mounted a bolt-casing, a, conturned far enough to be out of the way. taining a sliding bolt, b. The bolt is oper- Fig. 2 shows the position of the parts when ated by a knob, c, the shank of which plays the check is'in use and the door closed. The in a slot in the casing. The bolt has a neck, bail is folded' down over the door to the in bx, formed, as herein shown, by cutting reclined position seen in Fig. 4, and the bolt 9o 4o cesses in its opposite sides. When the casprotruded. Now if the door be opened the ing a is secured to the door and the bolt is neck of the bolt will engage the bail and the drawn in, the latter may be completely housed outward swing of the door will raise the bail riliw'tlgegasing and no part of the bolt or casto the position seen in dotted lines in Fig. 4.

ing will pRject beyond the edge of the door. Thelength of the bail limits the opening move- 45 On the door-casing Y, is mounted a basement of the door and the bolt and bail ca-nnot plate, d, on which are two checks, e; in which be disengaged except by rst closing the door. are holes that form bearings for journals, gx, In order to hold the door ajar and prevent on an elongated bail, g. This bail is formed it from being closed by the wind, or, if on of a piece of stout spring-wire b ent at g', to shipboard, by the rolling and pitching of the -roo 5o form an expanding spring at this point and so ship, I provide the bail with notches or shoulas to bring its branches into position nearly ders, h, which engage the head of the bolt when the lparts are in the position seen in dotted lines in Fig. 4s. It will be noted that the tendency of the bail, under the influence of its expanding spring and the beveled notches, e', tends to assume a perpendicular position when at an angle of about fifty to sixty degrees, and this tendency causes the bail to keep lthe shoulders h in engagement with the head of the bolt. This device is well adapted for the stateroom doors of vessels, and wherever it may be found desirable to hold the door slightly ajar, but locked against entry from the outside.

By protruding the bolt only so far as to bring its head under the shoulders, at the journals gx, of the bail, the door will be bolted and cannot be opened, as the space between the cheeks c, under the journals of the bail, serves as a bolt-socket.

The bail g, will,as stated, be made of round wire, by preference, but other forms of spring metal will serve. The base-plate d may be in two sections, each bearing a cheek e, for convenience in mounting the journals of the bail therein, but this is not material t0 my invention.

My stop device may be applied to the sashes of a window in lieu of the ordinary sash-lock to prevent the window from being opened or to permit it to be opened only to a limited extent.

Having thus describedv my invention, I

. claim* 1. In a door-check, the combination with a b0lt-casing and a sliding bolt therein provided with a head and neck as described, of the base-plate d, having flanged cheeks to provide bearings for the bail, ofthe said bail having its pivotal axis arranged at right-angles to the axis of the bolt and a distance from the base-plate greater than the thickness of the bolt-head, whereby the space between the said base-plate and shoulders serves as a socket to receive the head of the bolt, substantially as set forth.

2. In a door-check, the combination with a bolt-casing and the sliding bolt having a head and neck, ot' the base-plate CZ, having flanged and recessed cheeks e, the bail g, mounted in said cheeks and provided with an expanding spring, and shoulders h, the neck of the bolt being adapted to t snugly between the branches of the bail and the head of the bolt to engage the shoulders h on the bail, substantially as and for the purposes set forth. v

In Witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

WILLIAM A. GAY.

Witnesses:

HENRY CONNETT, JAs. KING DUFFY.