US394354A

US394354A - Leander g

Info

Publication number: US394354A
Authority: US
Publication date: 1888-12-11
Anticipated expiration: 1905-12-11

Description

.(No Model.)

L. CT. GILBERT.

GAR HEATER.

No. 394,354. Patented Deo. 11, 1888.

@ fm @n F? @afg Ej WM UNITED STATES PATENT OEEICE.

LEANDER G. GILBERT, OF BUFFALO, NET YORK, ASSIGNOR OF ONE-.HALF TO TOBIAS 'ITMER, .I R., OF SAME PLACE.

CARHHEATER.

SPECIFICATION forming part of Letters Patent No. 394,354, dated December 11, 1888.

Application filed March 26, 1888. Serial No. 268,482. (No model.)

To LZZ whom it may concern:

Re it known that I, LEANDER G. GILBERT, of the city ot' Buffalo, in the county ot' Erie and State ot' New York, have il'iventet'l new and uset'ul Inqjirovements in Oar-Irleat-ers, ot' which the following is a specification.

rlhis invention relates to that class of carheaters which are provided with a hot-water boiler and radiat-i11g-pipes, whereby the hot water is circulated through the car, and more particularly to an improvement in the heater described and shown in Letters Patent of the United States No. 377,934, dated February 14, 1888. In the heater ot' this patent an annular water-chamber or boiler surrounds the fire-pot and lamepassage, and the latter .is inovably arranged upon the )fire-pot and provided with means whereby the joint between the flame-chamber and fire-pot is automatically broken in case ot' an accident to the car, thereby admittin the water in the boiler to the fire-pot and extinguishing the tire. A portion of the water entering the ire-pot is converted into steam, and the expansive force of the latter eXpels a portion of the water through the chimney; but as the latter is too smallto allow all ol' the water and steam to escape a portion thereoll passes through the grate into the ash-pit, and t'rom the latter into the car through the ash-pit door, which is obj ection able.

rlhe object of my invention is to improve the construction of the heater, so as to avoid this objection; and the invention consists of the improvements which will be hereinafter i'ull y described, and pointed out in the claims.

In the accompanying drawings, Figure l is a sectional elevation ot' my improved carheater and one end of a railway-car. Fig. 2 is a side elevation ot the heater. Fig. 3 is a sectional elevation of the upper portion of the heater with the actuating mechanism removed.

Like letters ot' reference reier to like parts in the several ligures.

A represents the outer inclosing-shell or boiler of the heater, which is rigidly secured to the lioor of the car.

A is the nre-box or combustion-ehalnber, arranged in the lower portion thereof, and

having a fuel-door, (l. and A2 is the grate ar ranged in the tire-box. The hre-box A extends through an opening formed in the Hoor oi' the car, and is open at its lower end, so

that the contents of the tire-box can be discharged directly upon the ground.

B represents a series otf vertical tubes or tlues arranged within the boiler A, and eX- tending from the tire-box A to a smoke box or chamber, l-, arranged at the upper end of 6o the boiler.

Z) is the smoke-pipe or chilnne)v connected with the smoke-box B', and extending through the root' of the car.

c represents the feedpipe of the boiler A,

whereby the water is introduced into the boiler from a tank arranged in the car, or from any other source of supply, and c are the radiating-pipes connected with the boiler A,

and through which hot water is circulated 7o through the car.

The fire-box A is provided in its top with an inlet opening or pipe, D, which is closed by a vertically-1novable cap or tube, E, so that by raising said tube from the pipe D t-he water in the boiler A will be admitted to the tire-box A and the tire be extinguished. The top ot' the inlet-pipe D is provided with an annular groove or recess, d, into which the bottom ot' the cap or tube E lits, and a paek- 8o ing of asbestus is arranged in the recess CZ, so as to torni a tight joint between the lower end of the tube E and the inlet-pipe D. The upper end of the tube E extends through a central opening formed in the top of the boiler H is a horizontal plate formed on or secured to the upper end of the tube E, and 7L is a horizontal shaft j ournaled in suitable bearings secured to the upper side of said plate.

I I represent flanged pulleys secured to the ends of the shaft 7L, and z' z' are chains or caz .wi

The tube E is provided below the 9o bles fastened at one end to the pulleys I I and at their opposite end to an arm or projection secured to the outer side of the boilerA. The shaft 7L is provided at one end with a detachable crank, 7L', for turning it.

J J represent elliptical springs arranged on opposite sides of the tube E and interposed between the under side of the horizontal plate H and the gland f' of the stuiiing-box f. These springs tend to raise the plate H and tube E when the shaft 7i. is released, and thereby break the connection between said tube and the inlet-pipe D. The springs J J also serve to force the gland f into its seat in the stuffing-box, and thereby maintain a tight joint at this point at all times.

K represents a ratchet-wheel secured to the shaft 7L, and k is a pawl pivoted to an arm, 71;', secured to the plate H and engaging' with a ratchet-wheel, K.

L represents a depending weighted lever mounted loosely on the shaft 7i, so as to swing thereon. The lever L is provided with a short arm, l, which engages against a V-shaped proj ection or lug, on., formed on the pawl 7a. Upon turning the shaft 72 in the proper direction by means of the crank 7L' the cables are wound upon the pulleys I I, the plate H and tube E are depressed, so as to seat the lower end of the latter firmly upon the inlet-pipe D of the fire-box, and the springs J J are compressed. The parts are now in position for use, and are held in place by the pawl 7c engaging with the ratchet-wheel K. \Vheu the car assumes an abnormal position in case of an accident to the train, the upsetting or tilting of the car causes the lever L to swing upon its pivot, and its arm Z, engaging against the projection m, of Vthe pawl k, lifts the latter out of engagement with the ratchet-wheel K. This movement releases the shaft h and cables 1', and the springs J J now force the plate Il and tube E upwardly and break the joint between the tube and the inlet-pipe D of the fire-box,

thereby permitting the water in the boiler to ent-er the lire-pot and extinguishing the fire. A portion of the water and steam escapes into the chimney through the iiues B and smokeboX B', while the remaining portion thereof passes through the grate A2 and escapes through the open bottom of the fire-box. By this construction of the fire-box the steam generated in the fire-box, when the water enters the same, iinds a free vent through the open bottom of the fire-box, thereby preventing a portion of the contents of the fire-box from being forced into the car and injuring the passengers.

N represents a circular plate journaled in the lower open end of the fire-box below thel grate A2, and which forms a damper for regulating the draft to the lire-box, and also serves as a movable bottom for closing the lower end of the fire-box and preventing einders from dropping out.. of the lire-box when the car y stands in a depot or other place which is liable to take iire. The damper N is provided with a number of perforations, as shown, so as to admit air to the fire-box when the damper is entirely closed, the perforations being so small as to retain the cinders. One of the pivots or journals of the damper N is provided with a crank, n, which is connected to the lower end of au adjusting-rod, 0, extending upwardlythrough an opening in the car-H001'.

o is an adjustable collar secured to the rod o, and which is adapted to bear against the floor of the car, so as to hold the damper in any desired position. 3y raising or lowering this collar on the rod o the damper can be closed to a greater or less extent.

p represents a rod pivoted at its upper end to the'shaft 7L, and provided at its lower end with a link, p', in which is arranged a pin, p2,- secured to the upper end of the rod o. The linkp' is of suiiicient length to permit the rod to be raised and lowered on the same for adjusting the damper without disturbing the position of the rod p. X'Vhen the shaft 7L is released and elevated in case of an accident,

the rod j) is also drawn upwardly, thereby raising the lower rod, 0, by means of the pin p2 and opening the damper N. In this manner the damper is automatically opened at the same time that the water is discharged into the lire-pot, thus leaving the bottom of the iire-pot unobstructed and allowing the steam and water to escape therefrom.

I claim. as my inventionl. The combination, with the boiler A, provided with a smoke-box, IS', of the nre-box A', arranged within the same and provided with an open bottom and with an inlet-opening in its top, a movable cap or tube, E, closing said opening, and iiues B, connecting the tire-box with the smoke-box, substantially as set forth.

2. The combination, with the boiler A, provided with a smoke-box, B', and a central openin g extending through the top of the boiler and the smoke-box, of a fire-pot arranged within the boiler below the smoke-box and provided with an inlet-tube, D, in its top, a movable tube, E, extending through the central opening in the boiler and smoke-box and resting with its lower en d upon the tube D, a stufling-box,f, surrounding the tube E, a plate, H, secured to the tube E above the stuffingbox, and springs J, interposed between the plate H and the gland of the stuffing-box, substantially as set forth.

3. The combination, with the boiler A and fire-box A', having an open bottom and provided in its top with an inlet-pipe, D, of a movable cap or tube, E, closing said inlet-pipe and provided with a plate, H, a damper or pivoted plate, N, arranged in the open bottom of the fire-box, and a connectingrod and crank, whereby said damper is operated from the plate H, substantially as set forth.

L t. The combination, with the tire-box having the inlet-pipe D and made open in its bottom, of a damper, N, arranged in the open bot- IOC IIO

tom of the lire-box and provided with a Crank, a pin engaging in Said link, Substantially as 1o the tube or cap E, Closing the pipe D and proset forth, 'vided with a plate, H, a Shaft, h, mounted on Witness my hand this 20th day of )Im-eh, said plate and provided with drums I, having 1888.

5 cords 1', and a ratchet mechanism, K la, a de- ,T 1 1 1 pending lever, L, pivoted to said shaft, a rod, LEA) DER CT GILbERVl' p, attached to the shaft h and provided in its Vtnesses: lower end with a link, and a rod, o, pivo'ed to JNO. J. BONNER, the crank of the damper N and provided with TOBIAS XVITMER, J 1.