US1391926A - Fire-door for locomotives - Google Patents

Description

w. WHITE. FIRE DOOR FOR LOCOMOTIVES.

APPLICATION FILED MAY 29, I915- PatentedSept. 27, 1921.

UNITED STATES] PATENTOFFICE- WILLIAM WHITE, OF NILES, MICHIGAN, ASSIGNOR 'I'O HALE/RY VISSERING & COM-- IPANY, OF CHICAGO, ILLINOIS,

FIRE-DOOR FOR Be it known that I, WILLIAM WHrrn, a citizen of the United States, and aresident of Niles, in the county of Berrien and State of Michigan, have invented certain new and useful Improvements in Fire-Doors for L0- comotives, of which the following is aspecification.

My invention relates to firedoors and has for its object to provide a fire door having a simple and efficient fluid pressure operating mechanism, the parts of which are so compactly arranged as to cause no interference with the duties of the engine men and are of simple and economical construction. With this object in view, my invention con- 'sists in the details hereinafter described and claimed.

In the drawing, Figure 1 is a rear elevation of a fire door with my improved operating mechanism. Fig. 2 is a side elevation.

In the drawing, A indicates the fire door and B the frame work thereof, the door being hung upon suitable hinges C. These hinges C have one member formed upon the upper portion of the outwardly projecting housing B forming a part of the door frame, while the other member of the hinge is formed upon the upper part of the. door, the hinge members being connected by the pintle C The door so mounted is adapted to swing inwardly and upwardly. Upon the upper wall of the housing B is mounted a fluid pressure cylinder D, the piston rod D of which is operated by suitable fluid pressure, such as compressed air, supplied through the pipe E connected with a suitable source of supply and controlled by the valve mechanism F operated by a pivoted foot lever Gr, all these parts being of any suitable well known construction. Rigidly connected to the forward end of the piston rod D is a forked link H, the arms H of which extend forwardly, substantially parallel with the cylinder D on each side thereof. At the upper edge of thedoor is arranged a project ing lug K and to the upper end of this lug are connected bent links H pivotally connected at their inner ends to the inner ends of the arms II.

From the arrangement of parts thus far described, it will be apparent that when fluid pressure is admitted to the cylinder D A CORPORATION or ILLINOIS.

LOCOMOTIVES.

Specification of Letters Patent. Patented Sept. 27, 1921; v

1915. Serial No; 31,254.

and the piston rod caused to travel outwardly, the door will be swung inwardly to the position shown in dotted lines in Fig. 2. The door may be maintained in its open position as long as the fluid pressure is kept upon thecyli-nder. In order, however, to provide for holding the door open when the fluid pressure has been released, I mount upon one of the hinge pintles C a bent lever M, having one arm I forming a handle 6X- tending upwardly and inwardly while the other arm M? is adapted to engage the door. At an intermediate point, the lever is provided with a pivoted pawl M adapted to engage a stop M formed upon the upper surface of the rearwardly projecting housing B. Thus, when the door is in open position, asshown in dotted lines, it may be held in this position by the lever M. When the pawl is disengaged from the stop M the weight of the door will cause the door to close, the fluid pressure in the cylinder acting as a cushion to prevent too sudden shocks.

Having thus described my invention. what I claim is:

1. In a fire door, the combination of a frame, an inwardly swinging door mounted in said frame, a lever having upper and lower portions pivotally attached intermediate its ends, to said frame, the lower part of said lever being adapted only to contact with and open said door when the upper part of said lever is moved rearwardly.

2.-In. a fire door, the combination of a frame having a rearwardly projecting housing, an inwardly and upwardly swinging door mounted in the housing, a lever having upper and lower portions pivotally attached intermediate its ends, to said housing, the lower part of said lever being only adapted to contact with and open said door when the upper part of said lever is moved rearwardly.

3. In a fire door, the combination of a frame having a rearwardly projecting housing, an inwardly and upwardly swinging door mounted in the housing, a lever having upper and lower portions pivotally attached intermediate its ends, to saidhousing, the lower partof said lever adapted only to contact with and open said door when the upper part of said lever is moved rearwardly, said lever being formed and arranged so that its upper end extends forwardly when the door is in its closed position.

l. In a fire door, the combination of a frame having a rearwardly projecting housing, an inwardly and upwardly swinging door mounted in the housing, a lever having upper and lower portions pivotally attached intermediate its ends, to the outer side of said housing, the lower part of said lever only adapted to enter the housing and push open said door when the upper part of said lever is moved rearwardly.

5. In a fire door, the combination of a frame, a door pivotally mounted in said frame, pneumatically operated means for opening said door, and a manually operated lever adapted to move transversely to said frame having thrust engagement only with said door for opening it, whereby the said pneumatically operated means may be operated independently of said lever.

6. In a fire door, the combination of a frame having a rearwardly projecting housing, an inwardly and upwardly swinging door mounted in the housing and a lever having upper and lower portions pivotally mounted intermediate its ends, on said housing, both ends of the lever being inclined forwardly when the door is closed, the lower end of the lever having thrust engagement only with said door for opening said door.

7. In a fire door, the combination of a frame having an opening therein, an-inwardly swinging door adaptedto close said opening mounted in said frame, a lever having upper and lower portions pivotally mounted intermediate its ends, on said frame, the lower part of the lever hav-ing thrust engagement only with said door for opening said door and arranged closely adjacent the inner wall of said opening whereby the effective area of said opening is reduced a minimum by said lever.

8. In a fire door, the combination of a frame having a rearwardly projecting housing, an inwardly and upwardly swinging door mounted in thehousing and a lever having upper and lower portions pivotally mounted intermediate its ends, on said housing, the upper end inclined forwardly adjacent the outer side ofsaid housing, the lower end projecting forwardly adjacent the inner side of the housing andhaving thrust engagement .only with said door for opening said door.

WILLIAM WHITE.

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