US352057A - johnsoh - Google Patents

Description

(No'ModeL) W. S. JOHNSON.

v TEMPERATURE REGULATOR. No. 352,057. Patented NOV. 2, 1886.

N. PETERS, PbmoI-flhognphen Wnhinglcn. D, C.

'lJNITED STATES PATENT OFFICE.

:WAEEEN s. JOHNSON, OF MILWAUKEE, WISCONSIN, ASSIGNOB TO THE JOHNSON ELECTRIC SERVICE COMPANY, OF sAME PLACE.

Application filed May 18, 1886.

To all whom it may concern:

Be it known that I, WARREN S. J onNsoN, of Milwaukee, in the county'of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Temperature-Regulators; and I do hereby declare that the following is a full,c1ear, and exact description thereof.

My invention relates to devices for regulating temperature, having especial reference to hot-air furnaces; and it consists in certain combinations of devices and the peculiarities of their construction, all as will'be fully set forth hereinafter.

In the drawings, Figure 1 is a general view illustrating my invention applied to a-hot-air furnace, and Figs. 2 and3 are details of certain parts in exactly the opposite working position from that show nin Fig. 1. I

A represents an apartment which receives its heat through a register, a, from a furnace, B. In said apartment a thermostat, O, is 10- cated, connected by wire I) to a battery, D, and by wire 0 to one of the binding-postsof'an electro-pneumatic valve, H, from whose other binding-post another wire, d, connects with the said battery D. This valve H is identical in its construction and operation with the similarly lettered electrically-actuated auxiliary valve shown and described in my Patent No. 331,406, dated December 1,1885. In Fig.v

3 I show-a detail sectional view of this valve, which consists of a chamber, H, containin'g'a piston-valve, H, which is lifted by thear'mae tare-lever h when the electric circuit is made by the thermostat, and this permits the fluid under pressure (as compressed air) from the reservoir G to enter the valve-chamber H from the pipe F through the passage h,and to pass out of said chamber through the passage h into the pipe F on the other side of the valve H, and thus into the expansible chamber E and beyond, as hereinafter explained, and the said valve-chamber H has an outlet, h, at the top, which is closed by the upper end of the piston-valve H when the passages 71. H h are open, as shown in Fig. 3. F is a pipe which leads to saidvalve H from a tank, G, .of fluid under pressure-such as compressed airand which pipe F then continues to the expansible chamber E, and thence to the valve (or damper) TEMPERATURE-REGULATOR.-

SPEGIFICATION fOZming part of Letters Patent No. 352,057, dated November 2, 1886.

Serial No. 202,499. (No model.)

, operating device I. (Shown in detail in Fig.

2.) This latter device is identical with that shown in myapplication for patent filed April 20, 1886, Serial No. 199,476, andconsists of a cup orcasingg, above which is a flexible ball.

h, having a vent, 13, at its base, formed .in a

nozzle, 1', which screws into a. bushing, 6 the edges of the rubber ball around its perforation being held between the flanges of the nozzle and awasher On said bushing, and the said nozzle being dropped down through a hole in the bottom of the casinggand there joined to the pipe F, all as shown in said Fig. 2. Pressed against the ball h by means of the spring 3 is the cup 70, which bears the rod k, projecting up through the supporting-frame B of the device I, which is secured in any .suitable manner to the hot-air pipe B'- of the furnace B.

Fisthe damperjournaled in the pipe B, and

one of its journals, f projects through said pipe, and is extended to be rigidly secured to one end of a slotted crank-arm, f, within whose slot there works the bent upper end or crankpin, is", of the rod is, already described.

My expansible chamber E, which'intersects the pipe F between the valve H and damperoperating deviceI, has an upper rigid concave wall,e, (suitablysuspendedfrom the floor-beams ofthe apartment A,in thepresent ill ustration,) and a lower flexible wall consisting of an expansible diaphragm, e, preferably of cloth and rubber. Below this diaphragm is a concavoconvex piece, J, (conforming in general shape to the concavity of the rigid wall e, just described,) and having a rigid downwardly-projecting central stem, J, pivoted to a lever, L, which is fulcrumed in ahanger, K, depending from the housing or rigid wall of the expansible chamber E. From one end, m, of this 1ever L there extends a wire or cord, in, to the draft-door M of the furnace B, while from its opposite end, a, there extends another wire or cord, n, to the check-doorNof said furnace. It is essential that the weight on the end it of the lever should be always greater than the weight on the end mof said lever, and to assist in securing this result a weight, 0, maybe used when necessary, as when the door M, for instance, should be heavier than the door N.

The operation of my devices will be readily lOO understood from the foregoing description of their construction and arrangement.

In Fig. l. I sh ow theposition of the parts when the room is below the desired temperature and the devices arranged in proper position to permit it to be heated. The compressed air in the tank G is shut off from the valve H, and the port h thereof being open, the compressed air which was in the expansible chamber E and pipe F on the other side of the said valve H has escaped through said port 71:", thereby allowing the greater-weighted end 91. of the lever L to fall until the check-doorN is closed, this action serving to raise the other end, m, of said lever, and with it the draftdoor M, while at the same time the escape of air from the ball 71. of the device I permits the spring j to exert its full downward pressure, carrying down the cup K and its rod is, thereby turning the damper F in the pipe B to a substantially vertical position, all of these parts being new as shown in Fig. 1, and the heated air from the furnace being permitted to enter the apartment A through the register a. Now suppose the room becomes too warmthat is, heated to a greater degree than that to which the thermostat C is adjusted. The latter will expand and make contact with its contact-screw, and thereby make the electric circuit by means of wires b c d,-whieh connect the battery D and valve H, and thus cause the ar mature-lever It to lift the piston valve H close the port h, and open the passages h H It in said valve. This enables the compressed air in the tank G to enter the pipe F, pass through the just-described passages in the valve H,and fill the expansible chamber E, thereby forcing the piece J, stein J, and that end of the lever L to which it is attached downward till the draft-door M is closed, (the consequent tilting of the other end of the lever at the same time opening the check-door,) and as the compressed air fills the ball 71. of the device I the latter is expanded, raising the cup k and its rod and closing the damper F in the pipe B, the valve H and part I and their attachments being new in the positions shown in Figs. 2 and 3, and the hot air from furnace B being thus shut off from the apartment A.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a temperature-regulator, the combination of a thermostat situated in the apartment whose heat is to be regulated, with a furnace provided with a hot-air pipe leading to said apartment, and having draft and check doors connected to a lever operated by the contraction or expansion of an expansible chamber, said lever, said expansible chamber, a reser voir of fluid under pressure, a pipe leading therefrom to the expansible chamber, an electro-pneumatic valve located at a point on said. pipe intermediate between the said expansible chamber and saidreservoir, an electric battery, and an electric circuit connecting said battery with the valve and thermostat, substantially as and for the purpose set forth.

2. The combination, with the draft-doors of a furnace and the expansible diaphragm-chamber, which operates said doors by means of a fluid under pressure, of an electrically-actuated valve governing the fluid under pressure, a thermostat and electric generator in circuit with said valve, and a reservoir for the fluid under pressure, whereby the thermostat will operate the electric valve, and thus admit the fluid under pressure to and release it from the said expansible diaphragm-chamber, thereby controlling the .drafts connected therewith, substantially as set forth.

3. In a heat-regulating apparatus, the combination of the following co-operative parts: first, a valve controlling the heat which directly warms an apartment, said valve being operated by afluid under pressure; second, an expansible chamber which operates by means of fluid-pressure the drafts of a furnace supplying such heat; third, said fnrnace-drafts; fourth, an electrically'actuated valve which controls the fluid for operating both said valve on the heating-pipe and said furnace-drafts; and, lastly, a thermostat, electric battery, and reservoir containing the fluid under pressure, connected to said electrically-actuated valve, whereby the action of the thermostat controls the electric valve, and by its means, through the fluid under pressure, operates simultaneously both the valve on the heating-pipe and the drafts of the furnace, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Visconsin, in the presence of two witnesses.

WARREN S. JOHNSON.

Witnesses:

H. G. Unnnnwoon, MAUnrcE F. Fame.

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