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Publication numberUS1183833 A
Publication typeGrant
Publication dateMay 16, 1916
Filing dateOct 11, 1915
Priority dateOct 11, 1915
Publication numberUS 1183833 A, US 1183833A, US-A-1183833, US1183833 A, US1183833A
InventorsSamuel K Klohs
Original AssigneeSamuel K Klohs
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Fastener for car-doors.
US 1183833 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




1 ,1 83,833. Patented May 16, 1916. v 2 SHEETS-SHEET 1.

l o o lo 0 o o o mfi o WITNESSES INVENTOR R22. I j m S. F. KLOHS.



Patented May 16, 1916.




Specification of Letters Patent.

Patented May 16, 1916.

Application filed March 28, 1910, Serial No. 551,926. Renewed October 11, 1915. Serial No. 55,353.

To all whom it may concern:

Be it known that I, SAMUEL F. KLoHs, a citizen of the United States, residing at Chicago, in the State of Illinois, have invented certain new and useful Improvements in Fasteners for Car-Doors, of which the following is a specification. I a

My present invention relates in genera to sliding doors, and like structures, and

more particularly to car side-doors; and

means for limiting movement of the door in closing and for looking it when closed against accidental opening.

The principal objects of my invention are the provision of an improved construct on of stop and latch for limiting the closing movement of the door and for'automatically looking it in closed position as the clos ng movement is completed, thereby preventlng accidental opening of the door and hammerlike swinging thereof back and forth upon the track with often consequent disengagement of the door from the track and loss thereof.

Additional objects of my present invention are the provision of lockin members which may be conveniently an inexpensively manufactured and assembled, and where desired applied to doors already in use without substantial changes in such doors.

In the attainment of the foregoing objects, and certain further benefits to be below disclosed, as well as in overcoming the disadvantages referred to, I have provided the constructions disclosed in the accompanying drawings wherein- Figure 1 is an elevational view of the side of a freight car having a sliding door with my present improvements applied thereto; Fig. 2 is an enlarged plan vlew taken on line IIII of Fig. 1; Figs. 3 and 4 are respectively side and end elevational views of an embodiment of my improved locking mechanism; Fig. 5 is an elevational view illustrative of a further embodiment of my improved locking mechanism.

Referring first more particularly to Fig. 1 of the drawings, it will be noted that I have here shown a customary construction including the side, 10, of a car having an opening, 11, adapted to be closed by a door 12 supported by hangers 1313 having rollers 1414 riding on a track 15, the door 12 being restrained from swinging outwardly from the car by the retaining bracket 16.

For the purpose of automatically locking the door 12 in closed position as it moves to the left closing the opening 11, I preferabl'y make use of cooperating fastening and bracket members 17, and 18, one carried bythe door and the other mounted for engagement therewith at a convenient point at j the sidelO of the car, adjacent the forward contemplates the provision of improved edge of the door, the member 18 also serving the purpose of an additional restraint for preventing outward swinging of the door.

Referring now more particularly to the embodiment of my invention illustrated in Figs. 3 and 4, it will be seen that for the purpose of holding the door 12 in closed position I utilize a hook l9 pivoted, as indicated at 30, between a pair of depending cars 31 formed on the bracket 18, and adapted for engagement with the teeth 24 24 formed on the cooperating member l7 carried by the door 12. To the end that the hook 19 may be sustained in operative position, I provide a spring 32 inserted under compression in a housing 33 formed in the finger 34, by means of which said hook may be withdrawn from said teeth when it is desired to open the door. The opposite end of the spring 32 is mounted upon a stud 35 formed upon the reinforcing flange 36. As may be clearly seen on an inspection of Fig. 3, the hook 159*, being provided with an inclined face 20 in order that as the door moves into closed position such hook may be depressed by the teeth 24 24 it offers no resistance to such closing movement but will engage such teeth and prevent any movement in the opposite direction and thus the opening of the door, until withdrawn from engagement with such teeth in the manner above described.

Referring now more particularly to Fig. 5, it will be apparent that in the embodiment of my invention here shown, I mount pivotally, as indicated at 40, on the member 17 carried by the door 12, a hook 19 having a concave inner surface 41 for engaging with the bracket 18 and thereby preventing opening of the door 12 save when the hook is lifted out of engagement with said bracket. To the end that the hook 19 may be caused to rise freely in the cl0s-' ing movement of the door as it strikes the edge 42 of the bracket 18", and allow such movement to be effected without interference, I provide the hook with a convex surface 20 Having thus described my invention and illustratedits use, what I claim as new and desire to secure by Letters Patent is the fo1- lowing:

1. A lock for car doors comprising arack,

carried by a door adjacent the bottom edge thereof, a bracket for restraining the door from outward movement, a hook pivotally mounted to engage said rack to prevent movement of said door in one direction and automatically permitting freedom of movement of the door in the opposite direction, said hook having a concaved inner surface and a convex surface, and means 'engageable with said concaved inner surface.

2. A look for car doors comprising hook copies of this patent may be obtained for five cents each, hy-add ressing the Commissioner of Patents,

and rack members carried respectively by the car and by the door adjac'ent'the bot tom edge thereof, the hook member being pivotally mounted and having a concaved 111116? surface, a bracket with which said surface engages to prevent opening of the door, said hook being provided further w th a convex surface adapted to engage the opposite edge ofthe bracketto allon freedom WM. J. REX.

Washington, D. 0.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5865480 *Nov 13, 1997Feb 2, 1999Bain, Jr.; Lincoln GradySliding door security and child safety latch
U.S. Classification292/228, 292/DIG.460, 292/95
Cooperative ClassificationY10S292/46, E05F11/00, E05C3/14