US372829A - Geobge van wagenen - Google Patents

Description

(No Model.) l

' G. VAN WACxENfEN.

FASTBNING Flo DooRAs.

Patented Nov; 8

N. PETERS. Fhamuthagnphr, washingwn, D.C.

UNITED STATES PATENT FFICF@ FASTENING FOR DOORS.

SPECIFICATION forming part of Letters Patent No. 372,829, dated November 8, 1887. Application led February -24, 1887. Serial No. 228,652. (No model.)

To all whom it may concern:

Be it known that I, GEORGE VAN WAGENEN, of the cityand county of New York, in the State of New York, have invented anew and useful Improvement in Fastenings for Doors, of which the following is a specification.

My invention is applicable to sliding or hinged doors,and is particularly advantageous for the doors of car-heating stoves, although when used in other structures it still has the advantage ofsecurity and easy manipulation.

Important objects of my invention are to provide, in connection with a hinged or piv oted latch, means whereby such latch may be securely held down or blocked in engagement with its keeper, and which are capable of easy adjustment by hand, although of such character that the latch will not accidentally be re? leased, even when the stove to which the fastening be applied be overturned. In carrying out my invention l employ, in connectionwith .a door and casing, an organ ized mechanism for locking the door and holding it closed, consisting of a pivoted latch, a bolt arranged to slide above the latch and of such size that when slid into the keeper above the latch the latch will be securely blocked, and a guide on the latch to which the bolt is fitted and in which it may slide. I also provide a pendulum lever weighted and connected with the lockingbolt,'to produce its automatic movement in a locking direction,and a knob or handle and cam, by a single movement of which the bolt may be first retracted, the latch raised, and the door moved.

. The invention consists in novel combinations of parts, above referred to and hereinafter described, and pointed out in the claims. In the accompanying drawings, Figure 1 is a front elevation of a portion of a stove ernbodying my invention, a cap which covers the latch mechanism being removed. Fig. 2 is a similar elevation showing the bolt withdrawn and latch raised. Fig. 3 is a horizontal section on the plane of the dotted line m x, Fig. 1. Fig. 4 represents the parts in an inverted position, showing how the `bolt is prevented from sliding back by gravity; and Fig. 5 represents my invention as adapted for a swinging door. Similar letters of reference designate corresponding parts in all the figures.

vFig. 1.

A designates a portion of a cylindric stove, to which is fitted a door, B, adapted to slide horizontally and to which my vfastening is applied.

B is the latch casing or frame secured to the door B, and C designates a hooked latch pivoted at e to swing vertically and hooked at b to engage with a shoulder or projection, 0l, on the keeper D. Above the latch G is a sliding bolt, E, which is iitted to guides e, so as to lie approximately parallel with the latch and adapted to enter the keeper D and hold the latch against rising and thus becoming disengaged from the projection d.

F designates a rotary handle or knob,which is adapted to turn freely, and on its spindle F is a cam,f, which, by turning the knob, is raised against the latch and caused to lift the hook or shoulder b out of engagement with the projection d, so that the door may be slid toward the right,as shown by the arrows s in The knob or handle F has an upwardly-projecting arm,f, having a pinandslot connection, f, with the bolt E, and by turning the knob or handle the bolt will be moved in the direction indicated by the arrow thereon in Fig. l. Below the knob or handle F is a weight,f3, and said knob or handle,with the arm f and weight,constitutes a pendulumlever,which by gravity tends to hold the bolt E in the locked position shown in Fig. 1. Stop-pins f4 on the latch-frame B limit the swinging movement of the pendulum-lever.

If it be desired to open the door B, the first turning movement of the knob or handle F in the direction indicated by the arrow in Fig. 1 will, through the armf,slide the boltE out of the keeper D, thus permitting the raising of the latch G, and by the further turning movement of the knob or handle in the same direction the cam f is caused to lift the latch free of the keeper, and apush on the knob or handle will then open the door. Thus by the simple continued operation of one hand the door may be unfasteued and opened.

Vhen the parts of the fastening are left free,

they gravitate to the position shown in Fig. 1,

and if it then be desired to shut the door B a .push with the hand is given in. the right di- ICO lifts the end of the bolt E in the way of the keeper, and the bolt is held back while the latch enters the keeper and drops over the shoulder or projection d. The bolt E is then thrown forward into the keeper D, as shown in Fig. l, by the action of the weightf, thereby locking the latch in its engaged position.

All the parts of niy fastening should have a loose free lit, so as to avoid any interference with their action by rust or other causes. The several parts may be covered and protected by a cap or outer plate, B2, which, as shown, is substantially coincident with the latch-frame B', but may be smaller, and the knob or handle F projects through an opening in the capplate lf, and is shielded by a flange, b', which protects it from knocl's, but through which the fingers may be inserted for turning the knob.

From the above description it Will be understood that in nearly all positions which the stove or other structure on which the fastening is used can assume the weightf3 will hold the bolt E in locking position in the keeper D with absolute certainty; but to make the fastening more secure when the stove is inverted or thrown into the position shown in Fig. 4, Ihave shown the stop 71 as pivoted loosely to the bolt E, andas adapted, when the parts assume a position similar to that shown in Fig. 4L, to drop into engagement with the shoulder L, as shown in Fig. 4. 'In ordinary use the pivoted stop IL has no function, but rests idly upon the top ofthe bolt E, as shown in Figs. 1 and 2; but when the stove is inverted the stop L drops into engagement with the shoulder h. and thus prevents the retraction of the bolt E and the raising ofthe latch C.

In Fig. 5 I have shown a keeper, D, eonstructcd to receive the latch of a door which is hinged to swing horizontally instead ofslidi ng. The shoulder of the latch C may engage the projection or shoulder d, as before described; but the keeper D has at the front an upwardlyprojecting lip, d2, over which the latch must be lifted. to open the door. The bolt E prevents the lifting of the latch su fiiciently to pass over the lip di, and all the remaining parts of the fastening are constructed and arranged for operation as before described.

XVhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a door and casing, of a latch pivoted on the door, a keeper on the easing, with which the latch engages, a bolt lying above the latch and substantially parallel therewith and sliding above the latch to enter the keeper on the casing and prevent the raising of the latch, and a pivoted knob or handle having` an arm connected with the bolt for sliding it and a cam for raising the latch,

substantially as herein described.

2. The combination, with a doorand its casing, of the latch C on the door, a keeper, D, on the casing, with which the latch engages, the bolt E, sliding above the latch, the handle F, pivoted to the door and having an arm, j", which is connected with the bolt forslidingit, a cam,f, for lifting the latch, and the weight f, for operating on the handle to return the bolt and latch to safety position when released, substantially as herein described.

3. The combination, with a dooraud its casing, of a latch, C, pivoted tothe door, a keeper, D, on the easing, with which the latch engages, a bolt, E, sliding above the latch, a knob or handle pivoted tothe door,having an arm connected with the bolt for sliding it and a cani for raising the latch, agravity-stop pivoted on the bolt, and a project-ion on the door with which the stop engages for locking the bolt against inovenient when the parts are inverted, substantially as herein described.

GEO. VAN VVAGENEN.

lVitnesscs:

C. HALL, Fenna. HAYNEs.

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