US1205435A - Car-door mechanism. - Google Patents

Description

W. G. CORY.

CAR DOOR MECHANISM.

APPLICATION FILED OCT. 29, IBIS.

Patented Nov. 21, 1916.

2 SHEETSSHEET I.

W. G. CORY.

CAR DOOR MECHANISM.

APPLICATION FILED OCT. 29. I913.

Patented Nov. 21, 1916.

2 SHEETS-SHEET 2- inairnn sraras PATENT oEEioE WILBUR G. OORY, OF NEW YORK, N. Y., ASSIGNOR To oseoon BRADLEY can COMPANY, or WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

CAR-DOOR MECHANISM.

Application filed October 29, 1913.

To all whom it may concern: 7

Be it known that I, WILBUR G. CORY, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Car-Door Mechanism, of which the following is a specification.

This invention relates to car door mechanism and particularly to mechanism for operating the double end doors or so-called twin bulkhead doors on passenger cars.

It is one of the objects of my invention to provide a construction by which each one of a pair of double end doors may be automatically closed independently of the other door.

Another object of my invention is to provide means for independently locking each of a pair of double end doors in either open or closed position.

A third object of my invention is to pro vide means for yieldingly holding such a door in closed position in combination with means to positively lock the door in either open or closed position.

For the accomplishment of the objects above referred to, the invention comprises the features and combinations of parts hereinafter described and particularly pointed out in the appended claims. 7

A preferred form of my invention is shown in the drawings in which Figure 1 is a perspective view showing certain parts of a car framework and a pair of double end doors mounted thereon: Fig. 2 is a side elevation showing the automatic supporting mechanism: Fig. 3 is a detail sectional view on the line 33 in Fig. 2: Fig. 4: is a similar view showing the parts in a different position: Figs. 5 and 6 are details showing the locking mechanism in operative and inoperative positions: and Fig. 7 is an enlarged detail showing the yielding means for securing one of the doors in closed position.

Referring to Fig. 1, the doors and supporting structure embodying my invention are shown in connection with the framework of a passenger car of ordinary construction. The doors l0 and 11 are mounted upon rollers 12 shown in dotted lines in Fig. 2 and arranged to travel upon inclined overhead tracks 13. These tracks are pivotally secured to the supporting framework by the Specification of Letters Patent.

Patented Nov. 21, 1916.

Serial No. 798,141.

plates 11 and are provided with vertical adusting bolts 15 by which the depression of their inner ends 16 below the bracket 17 may be regulated. From this construction it may be seen that the doors l0 and 11, when free to move, will automatically travel toward the lower ends of the tracks 13 and will thus tend to assume a closed position- Mounted upon the side framework 18 of the door casing, as shown in Figs. 3 to6 is a locking member or latch 19 which is pivotally secured to a plate 20. This plate may be fastened to the framework 18 in any desired manner, as by screws 21 and is provided with a pin 22 which acts to support the locking member 19 in operative position, as shown in Fig. 5, 01 in inoperative position, as shown in Fig. 6.

The doors 10 and 11 are each provided with a recess 23 in which may be secured a metallic lining member or socket 2 1. The socket 2a is so located in the door that when the door is closed the socket will bev in position to receive the locking member 19, as is shown in Fig. 3. l/Vhenv the door is fully open the locking member may be moved to a position in front of the door, thus serving to lock the door in either closed or open position. WVhen the locking member is moved to the position shown in Fig. 6, the door may be freely moved from any position.

Referring to Fig. 2, there is mounted upon the framework of the car between the ends of the overhead tracks 13 a block 25 to which is secured a leaf s ring 26 having the outline shown in Fig. 'l The door 11 has secured to the upper corner thereof a projecting lug 27 adapted to raise the spring 26 as it passes thereunder and by means of this lug the spring 26 will hold the door 11 yieldingly in closed position. A second spring 26 and lug 27 may be provided for the door 10 if so desired.

By the provision of both the positive looking member 19 and the yielding locking member 26, all conditions arising in passenger car operation may be satisfactorily met.

The door maybe positively locked in open position by the member 19 and it may be positively locked in closed position by the same member. If it seems desirable to leave the door under the control of the entering passengers the locking member 19 may be swung to inoperative position, as shown in Fig. 6, leaving the door under the control 7 of the spring member 26. This member will yield when the passengers open the door, but will prevent banging and possible breakage of the door, arising from movements of the car. At the same time the door is free to move automatically to closed position under the influence of gravity.

I am aware that many modifications of my device may be made by those skilled in the art without departing from the scope of my invention and I do not Wish to be limited to the precise disclosure herein shown, but

What I do claim is 1. In a car, in combination, a door casing, a door movable by gravity to closed position in said casing, means including a spring for yieldingly holding said door in closed position without positively locking the same, and a single additional device effeclocking device mounted on the door casing efiective to positivelv lock said door in either open or closed position, said device including a pivoted member movable into operative and inoperative positions, and

means being provided for supporting said member in either of said positions.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

WIL BUR G. CORY. V

IVit-nesses HAROLD R. CURRIEn, Howano G. SAUNDERS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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