US1223697A - Sliding door. - Google Patents

Description

L. JANSE.

SLIDING DOOR.

APPLICATION FILED MAII.23. I915.

1,223,697., Patented Apr. 24, 1917.

I ll

II'HNESSE LEENDERT JANSE, OF THE HAGUE, NETHERLANDS.

SLIDING DOOR.

Specification of Letters Patent.

Patented Apr. 24:, 191?.

Application filed March 23, 1915. Serial no. 16,403.

To all whom it may concern:

Be it known that 1, LEENDERI. JANsn, a subject of the Queen of the Netherlands, and residing at 53 Kanaalweg, The Hague, the Netherlands, have invented a certain new and useful Sliding Door, of which the following is a specification.

This invention relates to a new system of sliding door and has for its object to provide a door of simple construction which can readily and quickly be opened and closed.

The sliding door constructed in accord- .ance with this invention is especially useful for railway wagons, but it may also be ap plied to steamers, lift cages, buildings and the like, as will be readily understood from the following detailed description.

On the accompanying drawing one form of a sliding door according to this invention as applied to a cattle wagon is illustrated.

Figure 1 is an elevation of the closed door mounted in the end of the wagon, the latter being shown in section on line l1 in Fig. 2.

Fig. 2 is a plan view of the same with the end of the wagon shown in section on line 22 in Fig. 1.

Fig. 3 is an elevation of the opened door with the end of the wagon shown in section on line 33 of Fig. 4.

Fig. 4: is a plan view of the same with the end of the wagon shown in section line 4-4: in Fig. 3.

Like letters indicate like parts throughout the drawing.

The door 1 is suspended from or supported by two hooks 2 and 3, which are pivotally mounted respectively in brackets 4 and 5, rigidly attached to the upper part of the door. At their upper extremities the hooks 2 and 3 are provided with rollers 6 and 7 respectively; said rollers running on guide rails 8 and 9 arranged at a right angle to one another. In the fioor of the wagon two guides 10 and 11 are provided respectively arranged parallel to and in a vertical direction under the guide rails 8 and 9. The guide pins 12 and 13 arranged in a vertical direction under the hooks 2 and 3 respectively can slide in the guides 10 and 11.

The door 1 may be constructed of wood, steel or any other suitable material. In the closed position of the door (as shown in Figs. 1 and 2), the roller 6 is situated on the guide rail 8 near the intersecting point of the guide rails 8 and 9 and the roller 7 on the guide rail 9 at some distance from said intersecting point. The guide pins 12 and 13 are correspondingly situated in the guides 10 and 11 respectively.

In opening the door the roller 6 runs over the rail 8 and the roller 7 over the rail 9; in a corresponding manner the guide pins 12 and 13 slide in the guides 10 and 11 respectively. During this movement of the door the hooks 2 and 3 pivot in their brackets 4t and 5 and each part of the door describes an elliptic curve. In the fully opened position of the door (as shown in Figs. 3 and 4c) the roller 6 is situated on the rail 8 near the end thereof opposite to the intersecting point of the rails 8 and 9 and the roller 7 011 the rail 9 close to said intersecting point. The guide pins 12 and 13 again occupy corresponding positions in the guides 10 and 11 respectively.

The doors according to this invention present considerable advantages on account of the little space occupied thereby and the readiness with which they may be opened and closed in loading and unloading wagons. It is a particular-advantage of this sliding door that it can-readily'be provided at the front and rear ends of wagons and cars, and when in the open position it projects from the end of the wagon (as shown in Figs. 3 and 4) thus acting as a guard for cattle or persons passing from one wagon to the next.

It will be understood that the sliding door as described and illustrated may be modified in several ways in order to make it better suit the particular uses for which it is destined without departing from the spirit of the invention. For instance, the door may consist of two parts moving in opposite directions in opening the door. Further the top guide rails, and the-bottom guides, do not necessarily form a right angle with each other. The upper part of the door may be guided by pins in suitable guides, the lower part then being provided with rollers running in corresponding rails.

Having now described my invention what I claim as new and desire to secure by'Letters Patent is:

1. In a railway wagon the combination of a vertical door member, a side horizontal supporting track arranged substantially parallel to the'side wall of the wagon, an

end horizontal supporting track arranged substantially parallel to the end wall of the wagon, a pair of spaced brackets attached to said door member, means for engaging said side track only and pivotally mounted on a vertical aXis on one of said brackets, means for engaging said end track only and pivotally mounted on a vertical axis on the other bracket a pair of guide tracks and a' pair of guide members attached to said door member and each engaging in one of said of a vertical door member, aside horizontal supporting rail arranged substantially parallel to the side wall of the wagon, an end horizontal supporting rail arranged substantially parallel to the end wall of the wagon, a pair of spaced brackets attached to said door member, a roller for engaging said side. rail only and pivotally connected to one of said brackets on a vertical axis, a roller for engaging the end rail only and pivotally connected to the other bracket on a vertical axis, a pair of guide tracks arranged in vertical alinement with said supporting rails, and a pair of guide members attached to said door member and each engaging in one of said guide tracks, said end'supporting rail being at a smaller disjtanceifrom theend wall of the wagon than it is -fro1nthe adjacent vertical edge of the door ,member When the latter is in its open Copies of this patent may be obtained for position whereby the door member protrudes from the end of the Wagon when in said position.

3. In a railway Wagon the combination of a Vertical door member, a side horizontal supporting track arranged substantially parallel to the side wall of the Wagon, an end horizontal supporting track arranged substantially parallel to the end Wall of the wagon, a pair of spaced brackets, attached to said door member, means for engaging said side track only and pivotally mounted on a vertical axis on one of said brackets, means for engaging said end track only and pivotally mounted on a vertical aXis on the other bracket at a lesser distance from the door member than the aforesaid axis, a pair of guide tracks, and a pair of guide members attached to said door member and each engaging in one of said guide tracks, said end supporting track being at a smaller distance from the end wall of the Wagon than it is from the adjacent vertical edge of the door member when the latter is in its open position whereby the door member protrudes from the end of the wagon when in said position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

LEENDERT JANSE.

Witnesses:

H. F. Kooy, A. G. NELSON.

five cents each, by addressing the Commissioner of Patents,

Washington, I). G.

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