US703908A - Sliding door for railway goods-vans. - Google Patents

Description

No. 703,908. Patented July um.

I V A. FISCHER.

SLIDING DOOR FUR RAILWAY GOODS VANS.

(No Model.)

V UNITED TATES ATENT Fries.

ARTHUR FISCHER, OF AUGSB URG, GERMANY.

SLIDING DOOR FOR RAILWAY GOODS-VANS.

SPECIFICATION forming part of Letters Patent No. 703,908, dated July 1, 1902. Applioation filed February 13, 1902. Serial No. 93,967. (No modeh) To all whom, it may concern:

Be it known that I, ARTHUR FISCHER, a citizen of the Empire of Germany, and a resident of Augsburg, Germany, have made certain newand useful Improvements in and Relating to the Sliding Doors of Railway Goods Vans or Wagons, of which the following is aspecification.

This invention relates to the sliding doors of railway goods vans or wagons; and it has for its object to enable attendants and animals to descend fromlive-stock wagons or vans without the assistance of a separate landing-gangway or bridging-planks.

The invention is of especial value for military purposes, as by it the detraining of live stock can be much more expeditiously effected than hitherto. To this end the upper rollers of the sliding door are so mounted that they can be put out of engagement with the upper guide-rod and so that the door can be turned outward on the lower guide-rod (which then acts as a hinge) and when let down form a landing-gangway.

On the accompanying drawings two modified forms of my improved sliding door of railway goods-vans are represented;

Figure 1 shows one form thereof in front elevation, the door being in the closed position. Fig. 2 is a side elevation, the lower part of the door being partly broken away for sake of greater clearness. Fig. 3 shows the door in the detraining position. Fig. 4 is a front elevation of part of a door of the second modified form. Figs. 5 and 6 are sectional views of the guiding parts of the door.

Referring to Figs. 1 to 3, the sliding door I) is mounted on lower rollers f, moving on a guide-rod c, fastened on the van or wagon. In correspondence with this rod a second guide -rod 01 is arranged above the door, against which the upper rollers f bear. The latter are each carried at one end of a bent lever h, which is pivoted to the pin '5 at the upper part of the door, the other end of said levers being coupled together bya rod or bar g. This bar 9 is provided with a hand-screw L, which takes into a corresponding hole or socket formed for its reception in or secured to the door. The arrangement therefore is such that the door when closed and the coupling-rod g adjusted so that the upper rollers fare in engagement withitheir guide-rod d, can be locked in this position by simply screwing up the hand-screw Z. In order to disengage the upper rollers f and enable the door to be openedor let down, it is only necessary to disengage the hand-screw Z from the hole or socket in the door, when the upper rollers f will, by reason of their weight, drop away from the guide-rod d,'(position shown in Fig. 1 in dotted lines,) and thus release the door. The latter door can now be opened or turned outward by means of the hinges w, arranged on the lower guide-rod c, and laid down with its front edge resting on the ground orplatform, as the case may be. In this position the door maybe advantageously supported by legs m, pivotally secured to the front of the door, Figs. 1 to 3.

For the purpose of obtaining the proper angle of inclination of the door when lowered or laid down it may be formed of two parts b and p, the latter being connected with the upper edge of the former by means of strong hinges, so that when the door is turned down one of said parts forms a fiat extension or continuation of the other. To keep the two parts rigid when in this position, bolts 0 are provided at each side which can be shot into eyes or sockets on both parts of the door.

According to the second modified form of my invention, Figs. 4 to 6, I dispense with the bent levers and mount the upper rollers f on the upper edge of the door, the upper guide-rod at being in this instance provided with bonds 1, so that when the rollers are brought opposite these bends said rollers will no longer bear against the guide-rod, and thus the door can therefore be opened orlaid down.

In order that the door shall not openwithout further action after the rollers f have entered the bends r, I provide an adjustable guard-rail 8, adapted to overhang-the'upper part of the rollers and provided with recesses 10, corresponding with the bends r in the guide-rod d. This rail sis secured to the wagon or van, and it is only when the recesses are adjusted to coincide with bonds in the guide-rod that the door can be let down or turned over. To enable this adjustment each end with a slot U, through which passes a pin or stud u, projecting from the wagon or van, and to retain the said rail in either position a bolt 15 on the wagon or van engages in arecess or notch formed in the top of the rail, Fig- 6.

Having now described and ascertained the nature of my said invention and in what man- ,ner the same is to be performed, I claim-- gaging the upper rollers from their guide rod to permit the door to be swung outward and downward.

3. A combined sliding door and gangway for cars consisting of a door provided with rollers, guide-rods engaging the grooves in said rollers, said door being connected to, and adapted to pivot on, the lower guide-rod, bends in the upper guide-rod,a sliding guardrail adapted to overhang the upper part of the rollers and provided with recesses corresponding with the bends in the guide-rod, to permit the door to be swung outward and downward when the recesses, bends and rollers are brought into registration.

In witness whereof I have hereunto set my hand in presence of two witnesses.

- ARTHUR FISCHER;

Witnesses:

F. OBERNDORF, V. SCHNEIDER.

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