US400826A - Automatic heat-regulating device - Google Patents

Description

(No Model.)

N. C. BUTLER 8v F. D. ROSENBERGER. AUTOMATIC HEAT EEGULATING DEVICE. No. 400,826.

Patented'Apr. 2, 1889.

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NITEDI STATES NATHAN COLE nBUTLER AND FRANK D. ROSENBERGER, OF LEIPSIO, OHIO.

AUTOMATIC HEAT-REGULATING DEVICE.

SPECIFICATION forming part of Letters Patent No. 400,826, dated April 2, 1889.

Application iiled May 7, 1888. Serial No. 273,069. (No model.)

To all whom t may concern,.-

Be it known that we, NATHAN COLE BUT- LER and FRANK D. ROSENBERGER, residents of Leipsic, in the county of Putnam and State of Ohio, have invented certain new and useful Improvements in Automatic Heat-Regulating' Devices; and we do hereby declare that the following is a full, clear and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same;

This invention relates to automatic heatregulating devices.

' The object is to produce a device for regulating automatically the flow of gas to a stove using the same as fuel, whereby an even temperature may be at all times maintained in a room in which the stove is placed; furthermore, to produce a device which shall be simple of construction, efficient and durable in use, and comparatively inexpensive of production.

lVith these objects in view the invention consists in the improved construction and combination of parts of an automatic heatregulating device, as will be hereinafter fully described in the specification, illustrated in the drawing, and more particularly pointed out in the claims.

In the accompanying drawing, forming part of this specification,and in which like letters of reference indicate corresponding parts, the figure is a side elevation, partly in section, showing the deviceintaet.

Referring to the drawing, A designates a frame, which is to be fastened to the wall of a room in a perpendicular position, and at a part subject to the greatest change of temperature-as, for instance, near the door. To this frame is secured,at its upper end, a thermostat, B, of the ordinary construction, and composed o'f a composition of metals that will be highly sensitive to the different changes of the atmosphere. The lower portion, l), of the thermostat connects with a valve-stem, D, which passes through a stutling-box, d, and into the globe-valve E. The lower end of the valve-stem is provided with shoulders d', which engage corresponding shoulders, f, on the cap f', which is screwed on the valve F.

Between the end of the valve-stem and the top of the valve a space is left, in which is placed a rubber gasket, f2, the peculiar function of which will be described farther on.

a globe-valve mounted on it provided with a gravity-valve, g, which is held or poised above the valve-seat g by the pressure of the gas, and to insure its perfect working-that is, to cause the valve to set squarely on its seatthe valve-stein works in an opening, g2, in the cap of the valve, thereby causing the parts to come together to form a gas-tight joint. This branch pipe is further provided with a mixing-chamber, H, having air-inlets 7i, through which the air is fed to the gas in sufficient quantities to insure the complete combustion of all the carbon in the gas, which not only serves to produce a more intense heat, but also to prevent the interior of the stove from becoming fouled with lamp-black. The gaspipe 7i extends some distance into the branch pipe, so as to prevent any of the gas escaping from the inlets.

I designates a smaller pipe leading from the branch pipe G, and designed to supply gas to the stove when the pressure in the globe-valve has become insuiiieient to hold the gravity-valve up, by means" of which a small amount of gas may at all times be fed to the stove.

The device operates as follows: Suppose it is desired to keep the temperature of a room at 70. The valve F on the thermostat is Afirst raised above its seat a sufficient distance to allow the necessary quantity of gas to pass'to the burner to raise the temperature of the room to that degree, and the thermostat is then secured in place and holds the valve fixed in the position to which it was adjusted; but should the weather moderate the temperature in the room would naturally rise above the 70C. Should this happen, the difference in temperature would immediately act on the thermostat and cause it to expand, thereby closing the valve slightly and cutting olf enough of the gas to cause the temperature to remain at the desired degree. Now if the temperature of the room should become lower than 70O the thermostat would contract, thereby opening the valve and allowing a larger supply of gas tovbe fed to the stove; but

should the temperature of the room rise to a IOO point greatly above that originally intended 1l ie thermostat would expand more than would be necessary to elose the Valve, and iu that event the valve-stem would press upon the rubber gasket, thus preventing injury to the mocdianism, as by the jamming` of the parts to- `sgether. ri`he [low of would then be eut olf lfrom the braneh pipe through the valve, but would stili be :fed in a small quantity to the branch pipe through an opening, e, in the diaphragm ot' therz'ilve. The pressure of gas in the braneh pipe would then be insufficient io poise the gravitywalve. This would then elose `and Cause the gas to be fed through the small pipe l.

Having thus fully described our invention, what we elaim as new, and desire to secure by Letters Patent1v isl. ln :in automat-ie heat-regulating device, the Combination oi' a main burner, a supplypipe egnnniun ieating therewith, a branch pipe eonnnuxii'xatinr with the supply-pipe, asupplen'iental burner located adjacent to th e main burner and eominuniezitting with the brauch pipe, a gravitvvalve in the main pipe between ihobraneh pipe and main burneropening toward the burner, and a globe-valve .in the supply-pipe having a permanently-open perforation in the diaphragm, substantially as described.

2. In an automatic heatregulating device, the combination of a main burner, a supplypipe eommimica-ting` therewith, a branch pipe Communicating with the supply-pipe, a suppleinental burner located adj aeent to the main burner and communicating with the branch \Vitnesses:

Tm. L. VI IA nnnMiANN, IsnA si; H. RosENnui-zona.

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