US325371A

US325371A - Charles harcourt white

Info

Publication number: US325371A
Authority: US
Publication date: 1885-09-01
Anticipated expiration: 1902-09-01

Description

(Model.)

0. H. WHITE.

GAR DOOR LATCH.

No. 325,371. Patented Sept. 1', 1885.

N. mans. Pnclo-Lnhognpher. Wuiuington. a. c

CHARLES HARCOUET \VHITE, OF NEXV YORK, N. Y.

CAR-DOOR LATCH.

SPECIFICATION forming part of Letters Patent No. 325,371, dated September 1,1885.

Application filed Juno 3, 1885. (Modehl To all whom it may concern:

Be it known that 1, CHARLES H. Wnrrn, of the city and county of New York, in the State of New York, have invented a new and useful Improvement in Car-Door Latches, of which the following is a specificatioin My invention relates to latches which are employed upon the doors of streetcars, and which are usually known to the trade as cardoor locks. As ordinarily constructed, the latch or tongue case is mortised into the cardoor; but as such doors are quite thin a very little woodoften only one-eighth of an inchis left at each side of the mortise, and in the rough usage which these latches receive the front stile of the door is frequently broken away or destroyed.

The object of my invention is to provide a very strong latch, the parts of which are so constructed and combined together and with the door that they mutually sustain each other in resisting any strain exerted upon the handles in opening or closing the door.

In carrying out my invention I construct the latch or tongue case with flanges at top and bottom, and fit the case into a notch cut in one edge of the door, and through the entire thickness thereof. The spindle to which the han dies are attached is journaled in two stayplates, which are secured to opposite sides of the door, and the ease contains a pivoted tongue having its journals or pivot extending through opposite sides of the case and through eyes or bearers formed in the two stay-plates, thereby very rigidly connecti ng the stavplates with the pivoted tongue, and through it with ihelatch-case or tonguecase. 'lheinside handle operates the pivoted tongue through a horizontallynioving draw-bar, which is held and guided between flanges formed upon the inside stayplate and the inside face of the door. This draw-bar has a hub which re eeives a pin or stud projecting inward from the inside handle, and it also has at its end a stud which projects through aslot in the latchcase and engages the pivoted tongue. This draw-bar is actuated to throw the tongue down by a spring arranged in a cavity in the inner face of the inside stay-plate, and this cavity is closed by a covering plate which projects upward between the draw-bar and the door, and prevents chafing of the door as the draw-bar moves.

The invention consists in novel features of construction and combinations of parts, hereinafter described,and pointed out in the elai ms.

In the accompanying drawings, Figure 1 represents in elevation a portion of the inner side of a door having my improved latch attaehed thereto. Fig. 2 represents a similar view of aportion of the outer side of a door. Fig. 3 is a sectional view upon the plane of the dotted line :10 m, Fig. 2, the handles and spindle being shown in elevation. Fig. 4 is a horizontal section through the edge portion of the door, showing the latch and a plan of the latch mechanism. Fig. 5 is a vertical section through the latch or tongue case and spindle and an inside view of the inner stayplate and draw-bar, the small covering-plate which conceals the spring in said stay-plate being removed. Fig. 6 represents the covering plate alone. Fig. 7 is a sectional view upon the plane of the dotted liney y, Fig. 5, including also the portion of the door to which the latch is secured. Fig. 8 represents a side view of, the inner side of the latch-case alone, and Fig. 9 is a face view thereof.

Similar letters of reference designate corresponding parts in all the figures.

A designates a portion of a door, and B des ignates the latch-case, which is inserted intlie notch A, cut in the edge of the door, and has flanges Z2 extending from its top and bottom, and provided with holes I), for the reception of screws to secure it to the door. Thislatchcase is of the same thickness as the door, as will be best seen from Fig. 7, and is visible on both sides thereof, being flush with theinner and outer faces of the door. It may be cast in one piece; but, as here represented, it has upon the inner side a removable coveringplate, B, which bears at the front edges against flanges or shoulders 1), formed upon thelatchcase, as shown in Fig. 8. This plate B also has inwardlyprojecting flanges b which project into the latch-cnse and bear against the top and bottom walls thereof, and also against the back Wall, as shown in Fig. 9. The purpose of making this plate B removable will be apparent hereinafter. 7

To the inner side of the door A is secured a stay-plate, (J, and to the outer side thereof is secured a stay-plate, O, as shown best in Figs. 1 and 2. The inside handle, D, is rigidly connected with a spindle, D and the outside handle, D, receives the end of the spindle, and is secured thereto by a pin, d, or otherwise. The two handles D D have inwardly-projecting cylindrical hubs d, which are fitted to bearings in the inner and outer stay-plates, O C, as best shown in Fig. 7. Within thelatchcase is a pivoted tongue, E, which has integraljournals or pivots 6 formed upon it by casting, and which are fitted to bearings e in the opposite sides of the case B. By making the plate B of the case B removable I am enabled to form the journals or pivots c integral with the tongue E, and hence add greatly to its strength. The stay-plates O O are secured to the door by screws 0, and they also have bearers or eyes 0, which receive the in tegral journals 0 of the pivoted tongue E, as best shown in Figs. 1, 2, and 7. In lieu of the journals or pivotse being integral with the tongue, they might be formed by a separate pin inserted through the tongue and through the sides of the case B and the stay-plates G (3; but I consider the construction here shown preferable.

F designates a draw-bar, through which the inside handle, D, of the door is connected with the pivoted tongue E. This draw-bar has an integral stud or pin, f, which works through a segmental slot, b", in the removable plate B of the case B, and enters a hole in the pivoted tongue E, as will be best understood from Fig. 5. The inside handle, D, has an inwardly projecting pin or stud, al which is formed integral with it, and which is received in a hub or socket, f, formed in the draw-bar F. The inner stayplate has upwardly-projecting flanges 0 which receive the draw-bar F behind them, and the draw-bar is guided in its movements between the flanges c and the inner face of the door or the side of the tongueease, as will be best understood from Fig. 4. The draw-bar F is moved in a direction to throw down the tongue E, or toward the edge of the door, by the spring 9, which is arranged within acavity, 0 formed on the inner side of the inner stay-plate, O, or that side which bears against the face of the door, as is best shown in Fig.5, and this recess or cavity is closed by a covering-plate, 0', (shown in Fig. 6,) and which may be secured by screws or rivets to the inner side of the stay-plate O. This covering-plate 0 projects upward above the top of the stay-plate O, as shown in Fig. 3, and the draw-bar F is by it held out of contact with and prevented from chafing the inner surface of the door.

I have represented in Fig. 5 the hook G, which is to be attached to the door-casing, and with which the pivotedtongue E engages automatically when the door is closed.

The inner end of the slot b through which the pin or stud 1'' projects, may form a stop for limiting the opening movement of the draw-bar; or the movement of the draw-bar in either direction may be limited by the hub f, which receives the pin or stud d", striking against one or other of the flanges 0 upon the inner stay-plate, G.

The connection between the handle and door to pull back the door in opening is made partly by the pin or stud f and partly by the in tegral journals 6 of the pivoted tongue E, and the poll is not entirely on the screws which attach the plates to the door, as it is in the ordinary latch or look.

The connection of the stay-plates O O with the journals or pivot of the tongue E enables the latch-ease B and the stay-plates to mutually support each other, and greatly strengthens the connection of the latch mechanism with the door, and through the integral pivots e the stay-plates are connected with the tongue-case B.

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

1. The combination, with a tongue case adapted to be notched into the edge of a cardoor, of stay-plates to be applied to the inner and outer sides of the door,and having formed in them the bearings for the handles, and a pin-and-eye connection, 6 0, between said tongue-ease and the stay-plates, whereby they are enabled to mutually support each other, substantially as herein described.

2. The combination, with a tongue-case to be notched into the edge of a door, and stayplates comprising bearings for the handles and to be secured to opposite sides of the door, of a tongue arranged in the case, and journals or pivots whereby the tongue is supported in the case, and which project through the sides of the case and are received in bearers or eyes upon the stay-plates, substantially as herein described.

3. The combination, with a tongue-case having a removable plate, B, of the tongue E, having integral pivots or journals which are supported in the sides of the case, and stayplates 0 0, having bearers or eyes 0, which receive the integral journals or pivots c of the tongue, substantially as herein described.

4.. The combination, with a tongue-case and its pivoted tongue, of the handles and their connecting-spindle, and a draw-bar upon the inner side of the door and forming a connection between one of said handles and the pivoted tongue, substantially as herein described.

5. The combination, with a tongue-case and its pivoted tongue, of the handles and their connecting-spindle, a draw-bar arranged upon the inner side of the door and forming a connection between one of the handles and the pivoted tongue, and a stay-plate, also secured to the inner side of the door, and forming a slideway or guides for the draw-bar, substantially as herein described.

6. The combination,with a tongue-case having one of its side plates slotted, and a pivoted tongue arranged therein, of handles and their connecting-spindle, the inner handle being provided with an inwardly-projecting pin or stud, and a draw-bar upon the inner side of the door having a socket to receive the pin or stud on the handle, and having a pin or stud which projects inward through the slot in the tonguecase and engages with the tongue, suhstantiall y as herein described.

7. The combination, with atongue-case and its pivoted tongue, of the handles and their connectingspindle, a stay-plate secured to the inner side of the door and comprising upwardly-proj eeting flanges, and having a recess upon its inner side, a draw-bar upon the inner side of the door, forming a connection be tween the handle and the pivoted tongue, aspring acting upon the draw-bar and arranged within a recess on the inner side of the stayplate, and a covering-plate for said recess projecting upward upon the inner side of the draw-bar to prevent chafing the door, substantially as herein described.

8. The combination, with a tonguecase and its removable slotted plate B, and a pivoted tongue, E, having integral journals 6, of the stay-plates G 0, provided with eyes or bearers c, which receive the integral journals of the pivoted tongue, the handles and their connecting spindle, the inner handle, D, being provided with an inwardly-projecting stud or pin, d and a draw-bar, F, having a socket or hub, f, receiving the pin or stud d, and having an inwardlyprojecting pin or stud, f, working through the slot 6 in the tongue-case and engaging with the tongue, substantially as herein described.

CHARLES HARCOURT XVHITE.

Witnesses:

FREDK. HAYNEs, G. HALL.