Sliding door for street-cars
US 394774 A
Description (OCR text may contain errors)
P. M. K-LING.
SLIDING DOOR FOR STREET CARS.
No. 394,774. Patented Dec. 18, 1888.
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PETER M. KLING, OF ST. LOUIS, MISSOURI.
SLIDING DOOR FOR STREET-CARS.
SPECIFICATION forming part of Letters Patent No. 394,774, dated December 18, 1888.
Application filed February 13, 1888. Serial-N0. 263,809. (No model.)
To all whom it may concern.-
Be it known that I, PETER M. KLING, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Slidin Doors for Street-Oars, of which the following a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, and in which Figure I is a detail vertical section through the roof of a street-car, showing part of one end of the car and part of the door in elevation, the door being shown in its open position. Fig. II is a similar view showing the door closed. Fig. III represents a modification.
My invention relates to an improved manner of holding the door of a street-car in its open or closed position; and my invention consists in features of novelty, hereinafter fully described, and pointed out in the claims.
Referring to the drawings, 1 represents one end of a streetcar, and 2 the door. The door is supported on a track or rail, 3, by means of hangers I, provided with rollers or sheaves 5, which bear upon the straight track 3 and work upon the track as the door is opened and closed.
6 represents springs for holding the door in its opened or closed position. To these springs my invention relates. Each spring consists, preferably, of an elastic plate having a head or portion, 7, by which it is secured to the end of the car. The free ends of the springs arepreferably provided with slightly circular portions 8, which fit the rollers or sheaves 5 when the door is opened or closed and prevent the accidental movement of the door, the pressure of the springs being sufficient to hold the door either in its closed position, as shown in Fig. II, or in its open position, as shown in Fig. I, until a person takes hold of the door and forces it open or closed, thus overcoming the pressure of the springs.
The device is a cheap and effective means of accomplishing the desired result.
In Fig. III, I have shown a modification, which consists in providing a projection, 9, on the hangers, against which the free ends of the springs bear, instead of bearing upon the periphery of the rollers, as shown in the other figures.
I claim as my invention 1. The combination of the door, hangers, rollers 011 the hangers, track upon which the rollers bear, and springs 6, having circular portions 8, the concave faces of which engage the rollers to hold the door in its opened or closed position,substantially as and for the purpose set forth.
2. The combination of a straight track, a door provided with rollers adapted to travel on the track, and springs having concave faces adapted to hold the door in its opened or closed position, substantially as set forth.
PETER M. KLING.
In presence of Jos. WAHLE, EDWD. S. KNIGHT.