US1209733A - Car-door-locking device. - Google Patents

Description

F.-A. LESTER.

CAR DOOR LOCKING DEVICE.

APPLICATION FILED lULY25.-1916.

Patented Dec. 26, 1916.

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lilliliil INVENTOR WITH ESSESZ F. A. LESTER.

CAR DOOR LOCKING DEVICE.

APPLICATION FILED IULY 25. I916.

Patented Dec. 26,1916.

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lllllllll llr| III- ETED STATES PATENT .QFFIEE,

FREDERICK A. LESTER, OF CHICAGO, ILLINOIS, ASSIGNOR TO CHICAGO STANDARD EQUIPMENT COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF MAINE.

CAR-DOOE-LOCKING DEVICE. 8

Specification of Letters Patent.

Patented Dec. 26, 1916.

To all whom it may concern:

Be it known that I, FREDERICK A. LESTER, a citizen of the United States, residing at Chicago, in the countyof Cook and'State of Illinois, have invented certain new and useful Improvements in Car-Door-Locking Devices, of which the following is a full, clear, andexact description, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, forming a part hereof.

My invention relates in general to sliding doors, and has reference more particularly to a locking device adapted for locking the rear end of a sliding door and maintaining the same against vertical and lateral displacement.

One of the principal objects of this invention is to improve the construction and increase the efficiency and utility of devices ofthis character. Another object is the pro vision of a locking device adapted particularly for locking the rear end portion of the door against a. siding or a door post flush with the siding, A still further object of my invention is to provide a locking device of this character capable of holding the door in a ainst outward movement, not only in its closed position, but also when the door is moved to partially open or open positions. In this way any tendency of the door to side-swipe cars or other objects being passed is entirely overcome, and irrespective of the position of the door with reference to the door opening.

These, together with such other'ob-jects as may hereinafter appear, or are incident to my invention, I obtain by means of the construction illustratedin preferred form in the accompanying drawings, wherein Figure 1 represents a side elevation of a car body and a sliding door embodying my devices, the door being in its closed position;

Figure 2 is an enlarged horizontal sectional view taken along the line 2-2 of Figure 1; r r

Figure 3 represents a perspective view of my lockingdevice, the parts being dissociated;

Figure 1 is a view in perspective of the car body, with the door detached therefrom to better disclose my invention;

Fig r s 5 a d 6 r p esent ertical ectional views taken along the lines 55 of Flgl'ure 1 and 66 of Figure 41, respectively; an

Figure 7 is a perspective view of a fragmentary portion of the front marginal portion of the door illustrating the front terminal of my invention.

Referring to the drawings, the numeral 8 indicates the car body or siding having the usual door-opening 9 and provided with the customary overhead track 10 and lower brackets 11. Slidably hung from the track 10 is a sliding door 12 whose lower marginal edge portion is engaged by the brackets 11 when the door is moved to its closed position.

Referring now more particularly to Figure 4, the door 12, as shown, consists of an external closure body portion 13 ,and an inner frame portion therefor comprising the upper and lower battens 14:, front and rear battens 15 and 16, cross-pieces l7, and the central horizontal batten 18, all of said members having flush inner faces, whereby in the movement of the door to its closed position the inner face of the rear batten 16 is designed to be brought up tightly against the outer flush face of the door post 19 by my improved closure and lock device.

In this connection, the batten 18 is provided longitudinally with a recess 20, preferably co-extensive with its length, and die sirably may be composed of two sections 18 and 18 spaced apart to provide this recess which is placed in line with the projecting bolt member, designated generally by the numeral 21 in Figure 1, secured to the outer face of the flush door-post 19.

This bolt member is provided with an attaching base 22 formed with a flanged head 23 and boltholes'22 through which pass the bolt elements 24 for securing the member tothe door-post. Connecting the base and head is a shankor neck portion 25 angularly disposed with reference thereto. It is intended that the head travel in and through this recess during door movement, and with a view to maintaining the door against outward or lateral displacement I attach keeper plates 26 to the inner marginal edges of the batten members, such plates having inwardly extending portions 26 projecting partially over the recess to hold the head therein and to provide a rela tively narrower passage 27 therebetween for the neck (Figure 6). A terminal plate 28, attached to the front end of the door to span the recess, may be provided, such plate serving to brace the batten members and to provide a stop where deemed necessary. This plate is attachable after the door is hung and the head has been inserted into the front end of the recess.

At the rear end of the recess, a closure bracket member 29 is positioned thereacross and comprises an attaching base 30 having a lateral terminal plate 31 for closing said rear end, and provided with the longitudinal ribs 32 whose inner faces are gradually inclined inwardly in a'direction toward said plate 31 and the base of the recess 20, and which virtually form extensions of the keeper projecting portions 26. The base 30 is formed with bolt holes 80 for the reception of the attaching bolts 33 which secure the bracket member to the door in the position shown.

Intermediately of the ribs 32, the web of bracket member is recessed longitudinally and angularly to form a continuation 27 of the passage 27 and to provide an upwardly inclined slideway 3st affording access to an inner seat for the neck 25, designated by the numeral 35, and a seat 86 for the head 23 of the bolt member, both being disposed in the same vertical plane and constitute what I term as a stop seat. All members carried by the door are of course flush with its inner face.

WVith the parts positioned as above described, it will be obvious that outward displacement of the door is impossible, no matter what position it may occupy; and the vertical relation of the door is maintained during door movement in view of the sliding contact of the bolt head 23 with the inner faces of the portions 26 of the keeper plates 26. As the door moves to closed position, this sliding contact is maintained until the head reaches the ribs 32, and in its travel along their inclined inner faces cooperates therewith to draw the rear end of the door inwardly until the stop seat is reached, whereupon the confronting portion of the door is brought tightly upagainst the door post 19, and with the neck portion 25 taking up a position at the narrow end of the slot or slideway vertical displacement of the door is impossible. Any tendency on the part of the door to sag is overcome; and the disengagement of the bolt member from the stop seat, in the opposite movement of the door, is readily and easily obtained, there being no severe binding of the parts in view of my improved construction.

copies of this patent may be obtained for What I claim is 1. In a device of the character described, the combination with a car door and car body having a doorway opening, of a bolt member secured to said car body adjacent the doorway opening and provided with an outwardly projecting locking portion, said door having its inner face provided intermediate its ends with a longitudinal recess within which said outwardly projecting locking portion in varying positions of the door is normally positioned, and a bracket member secured to the rear end of the door and formed with an open ended slot in alinement with said recess and an inner seat disposed in said recess adapted to be engaged by said outwardly projecting looking portion, said locking portion slidable in said longitudinal recess in the opening and closing of the door to engage with and disengage from said seat, the slot pro- I viding access from the recess to said seat; substantially as and for the purpose set forth. v

2. In a device of the character described, the combination with a sliding car door and car body having a doorway opening therein adapted to be closed by said door, of a bolt member secured to said car body adjacent the rear side of the doorway opening and .formed with an outwardly projecting look.

ing portion, said door havingitsinner face provided with a recess extending longitudinally intermediately the. front and rear edge portions of the door and into which said locking portion projects for travel therein as the door has sliding movement, means on said door for maintaining the head in said recess, and-a bracket member carried'by the door at the rear end of said recess and pro vided with an inner seat for said locking portion, said-bracket member disposed in the plane of the inner face of the door and formed with a slot providing access from said recess to said seat.

3. In a door closure and lock device, the combination of a bracket member composed of a substantially'fiat base body portion provided at one end with an angularly disposed terminal plate and formed with an open ended slideway slot and inclined ribs eX- tending inwardly from the oppositeend'to provide a stop seat adjacent said terminal plate, and a bolt member having angularly disposed locking portions adapted to enter said slideway slot and engage with such stop seat. v H

In testimony whereof I have hereunto signed my name to this specification.

FREDERICK A. LESTER;

Washington, 1).. G."

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