US508514A - Car-heater - Google Patents

Description

(NOModel.)

E. H. GOLD;

Y CAR HEATER.

No. 508,514.V Patented Nov. 14, 1893,

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EGBERT nwcoLD, on CHICAGO,- ILLINOIS.

SPECIFICATION forming part of Letters Patent No. os,514, dated November 14, 1893. Application filed septmbergsoflsen. sea1n0-447g413. (Nomerie.)

To all whom it may concern.'

Be it known that I, EGBERII" H. GOLD, a citi# zen of the' United States, residi-ng 'at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements inv Car-Heaters, ofk which thefollowing is a specilication,` reference being had to the accompanying drawings.

My invention relates to car heaters of the class wherein a body of water or other heat absorbing substance is employed whereby. a

certain amount of heat is absorbed whenl after the steam is shut o. Radiators of this description have heretofore been devised in which a sealed tube filled with water or other heat absorbing substance has been Yplaced within a larger tube which constituted the steam radiating surface. But with such sealed tubes difficulties occur in that the sealing is liable to be imperfect and it the contents are lost, there is no convenient Way of replacing them. Care must also be taken to ll the tubes to precisely the desired point as over tilling is liable to lead to' their bursting in case they are exposed to such cold as to freeze the contents, While partial filling detracts from their efficiency..

My invention isdesigned to obviate these objections as well as to secure certain other advantages as will hereinafterappear.

In the accompanying drawings: Figure lis a longitudinal view partly -in section of a radiator embodying my invention. Figs. 2, 3 and 4 are sections on linesV 2 2, 3 3, and 4 4 respectively of Fig. l. Fig. 5 is a longitudinal section of a portion of a tubular heater showing a modified form ot' the invention. Fig. 6 is a cross section also showing said modified form. i

A is the outer shell or tube which is connected by the pipe B to the source of steam supply, the connection being either direct, or through a heater or radiator similar to that illustrated, if a series of such heaters-0r kradiators are used. In like manner the pipeO forms a return to the steam generator or a connection to the neighboring radiator. Within the tube A is a smaller tube D which is made Water tight bya suitable head E, one being at each end of the tube. At the middle of the tube D and near the top one or more slots F are cut which permits the steam to en -ter the interior water .tube D. The tube D bears fora portion of its distance against the 4outer tubeA so that it is exposed to the coling inuence of the outer air to a limited extent. As shown in the drawings this circumferential contact is obtained by placing the ltube D eccentric within the tube A so that the ltwo are in contact at their tops. ymode of securing a partial circumferential lcontact between the two tubes, however,

Any other -would serve the same-end.

The heaters or radiators herein shown and described are very frequently used in cars or other moving vehicles and to prevent the surging of the water .which gathers in the tube D up to the level of the slots F, I in some cases, provide transverse partitions G G, &c., as shown inV Figs. 5 and 6, said partitions extending up to or near the top of the Vtube and having small openings gv at their bottom through which the water can pass slowly so as to maintain the same level throughout the tube. Said openings, however, are too small to allow the sudden passage of any considerable quantity of water; hence, there will be no considerable agitation or overflow of the water contained in the tube D, if the latter is subjected to shocks suchas arise from the rapid motion of the car orits sudden starting and stopping. f Y V,

In practice the heater is erected without placing any liquid within the tube D.. The steam used for heating is saturated softhat the slightestlowering of the temperature results in the condensation of aportion thereof. Such of the steam as enters the tube D being exposed to the cooling influence onone side, Will condense, but not with the same rapidity as the steam in the surrounding tube A. The water from condensation from the outer tube -is drained away in the usual manner, however,

while that in the inner tube D gradually accumulates until the level of the openings F is reached.n ,Thus there willalways be aconstant supplylot heat-absorbing liquid containe'dwithin the tube D. l

I am aware that prior to my invention a steam radiator has been provided with longitudinal shelves or pockets arranged at the side thereof for the purpose of catching and holding water of condensation, but such ra- ICO diator is designed for stationary use such as in house heating andl is not adapted for use as a car heater.

I am not aware, however, of any prior heater in which there is a perforated inner tube of substantially less diameter than the outer tube so that the space between said tubes constitutes a steam chamber, which leaves practically all of the surface of the exterior tube as a radiating surface with which the steam comes in direct contact; and by the term substantially less diameter I mean approximately such a difference as that shown in the drawings where suicient room is left to constitute a steam chamber between the inner and outer tubes.

I claiml. In a car heater the combination of an outer tube connected with a steam supply and an inner tube of substantially less cross section than the outer tube, whereby the space between said tubes constitutes a steam chamber, said inner tube having closed ends and being provided with openings at or near its top, substantially as and for the purpose set forth.

2. In a car heater, the combination of an outer tube connected with a steam supply, an inner tube of substantially less cross section than the outer tube whereby a space between said tubes constitutes a steam chamber, said inner tube being provided with closed ends and openings at or near its top, andtransverse partitions within said inner tube, substantially as and for the purpose set forth.

3. In a car heater the combination, of an outer tube connected with a steam supply and an inner tube having closed ends and openings at or near its top, said inner tube being in contact with the outer tube at one point only of its periphery, substantially as and for the purpose set forth.

4. In a car heater, the combination of an outer tube connected with a steam supply, an inner tube providedwith closed ends, and openings at or near its top, said inner tube being in contact with the outer tube at one part only of its periphery, and transverse partitions within said inner tube, substantially as and for the'purpose set forth.

EGBERT H. GOLD.

Witnesses:

IRWIN VEEDER, TODD MASON.

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