US1140083A - Thermostatic radiator-valve. - Google Patents

Description

c. STICKLE.

THERMOSTATIC RADIATOR VALVE.

APPLICATION FILED DEC. 26, 19l3.

Patented May 18, 1915.

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COLE STICKLE, 0F INDIANAPOLIS, INDIANA.

THERMOSTATIC RADIATOR-VALVE.

Specification of Letters Patent.

Patented May 18,1915.

Application filed December 26, 1913. Serial No. 808,813.

tion of thermostatic valves for steam radiators or the like in the nature of a compound expansion radiator valve.

In the valve the thermostatic portion thereof is a carbon tube adapted to be expanded or contracted by the heat of the steam and one feature of the invention consists in extending through said tube a metal rod in such fashion that it will not interfere with the expansion and contraction of said tube, but will reinforce the same and prevent it from warping, buckling or breaking.

One serious difliculty in devices of the kind heretofore has been due to the short life of the thermostats because of their expansion and contraction which would soon destroy the same and particularly in the kind herein shown when the thermostats would warp, buckle or bend and, therefore,

not only injure the thermostats but tend proportionately to reduce the operative efliciency thereof.

Still another feature of the invention consists in the leverage combination as herein shown, together with the valve and co6perating parts.

The nature of the invention will be under- There is shown herein a casing 10 with an I inlet 11 and an outlet 12 leading from the side of the casing. Said casing has a leverage chamber 110 with one end thereof internally threaded and closed by a removable nut 14. The inlet is on a lower'level than the chamber 110 and the passageway to said chamber 110 is through a valve seat 15 which is adapted to be closed by a ball'valve 16. This valve is held from escape by pins 13 on the end of a horizontal lever 17 which is fulcrumed to the casing by a pin 18 located, remotely from the valve. Another lever 20 is fulcrumed on a pin 21 secured to the casing and between the ends of said lever. The two levers 17 and 20 are parallel and the longer end of the lever 20 is pivoted to the shorter end of the lever 17 at 121. The thermostat bears ,down upon the short end of the lever 20 so that when the ther-. mostat expands under the influence of heat from the steam, it will, through the com bined levers 17 and 20, hold the valve 16 in the closing position.

The thermostat consists of a carbon tube 25 extending vertically with the lower end provided with a metal cap 26 bearing against the short end of the lever 20. The upper end of thethermostat is held by a nut 2 which screws into the internally threaded upward extension of the casing forming a thermostat chamber 210. The outer end of said extension is closed by a nut 28. The thermostat 25 is tubular and within it a metal rod 30 extends for substantially its entire length. Said rod is secured at its upper end in a nut 27 so as to be held centrally within the thermostatic tube 25 and it is of less diameter than the internal diameter of said tube. This construction of there mostat, therefore, is such that the tube 25,

compensation water, but when steam enters the valve, the thermostat expands and through said leverage closes the valve 16 and keeps it closedso that the compensation water cannot return and when the radiator is cooling nothing will return or run back from the discharge line to the radiator. 7

It is to be noted that the inlet is below the v discharge and the upper end of the valve seat 15 extends almost to the lower edge of T the discharge. This isin order to prevent the valve seat from becoming chocked or in-' jured by steam and the steam enters a trap below said inlet which is opened by a plug 35. Furthermore the thermostat is in alinement or located immediately over the valve and valve seat, as shown in Fig. 1.

The invention claimed is:

1. A thermostatic valve including a casing with an inlet opening, a ball valve for closing said opening by gravity and so as to be opened by the incoming fluid, a lever for limiting the movement of said ball valve, and downwardly extending pins from said lever surrounding the ball valve to prevent the escape thereof during the operation of the lever;

2. A thermostatic valve including a casing with an inlet opening and a discharge opening, a tubular valve seat in the opening and projecting above the wall of the casing and on a lower level than the discharge opening, a ball valve on said seat for closing the inlet, a thermostatically actuated lever fulcrumed on said casing with one end adapted when the thermostat is cooled to lie above the ball valve and permit the opening of said valve by an incoming fluid and when the thermostat is heated to actuate said lever to hold the valve closed, and downwardly extending pins from said lever surrounding the valve seat to prevent the escape of the valve when the lever is ele vated.

In Witness whereof, I have hereunto affiXed my signature in the presence of the witnesses herein named.

COLE STICKLE.

Witnesses:

J. H. WELLS, O. M. MCLAUGHLIN.

flo'pies'of this patent may be obtained for five cents each, by addressing the Commissionerof Patents. Washington, D. C.

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