US1123480A - Radiator-valve. - Google Patents

Description

A. H. BUOKELEW.

RADIATOR VALVE. APPLICATION FILED AUG. 8, 1912.

L1fi3,%8 Patented Jan.5, 1915.

WITNESSES IN l/E IV T01? l no rain rn'rn'r oruipu.

ALBERT H. BUCKELEW, on NEWARK, NEW JERSEY, ASSIGNOR or ONE-HALF TO DAVID 1. ALBERCROMIBIE, or NEWARK, NEW JERSEY.

RADIATOR-VALVE.

Application filed. August 8, 1912.

ing in Newark, Essex county, State of New Jersey, have invented certain new and useful Improvements in Radiator-Valves, of which the following is a specification, reference being had to the accompanying drawing, which forms a part hereof.

The use of automatic valves on steam radiators for the purpose of permitting the escape of trapped. air and for preventing the escape either of steam or of water, is well known. It has also been proposed to provide an automatic valve which shall not only prevent the escape of steam or water, while permitting the escape of air, but also prevent the entrance of air intothe radiator and into the heating system when the generation of steam has been stopped and the temperature and pressure within the radia- \tor fall. Heretofore, however, devices which have been effective under these three conditi'ons have been more or less complicated in construction and therefore not only expensive to manufacture but difiicult to adjust properly and liable to get out of order.

It is the object of this invention to produce a device, simple in construction and therefore comparatively inexpensive and not liable to get out of order nor difiicult to adjust, which shall operate effectively under all three of the conditions named.

In accordance tvith the invention there is provided a suitable casing adapted. for connection to the radiator and provided with a single valve controlled port for communication with the atmosphere, and a single operating body to act upon the valve so as to permit it to open for the escape of air and to cause it to close to prevent the escape of steam and water and also to prevent the entrance of air when the pressure within the radiator falls below the normal. Such operating body consists of a hollow metal body, light in weight, which floats with the accumulation of water in the casing so as to close the valve, expands with increase of temperature so as to close the valve, and also expands when the pressure outside of, the body falls below the pressure within the body, so as to close the valve, the valve being otherwise open to permit the escape of trapped air.

The invention will be more fully ex- Specification of Letters Patent.

Patented Jan. s, iais.

Serial No. 713,975.

plained hereinafter with. reference to the accompanying drawing in which it is illustrated and in which- Figure 1 is a view in vertical. central section of a valve constructed in accordance with the invention. Fig. 2 is a detail view in section on the line indicated by the broken line 2-2 of Fig. 1. Fig. 3 is an underside View of the operating body.

The casing of the valve," in the construction shown, comprises a base a and a cap or cover 6 which is secured to the base in any suitable manner as by threading as at If. The base has secured thereto or formed therewith a coupling member a by which the valve may be secured to the radiator, the chamber within the casing being in communication with the interior of the radiator through a suitable duct or channel 0. the inner portion a of which is inclined, as, shown in Fig. :2, for a purpose to be explained. The base a may also receive an adjustable plug 0 provided with a seat or bearing 0 for the controlling body. The plug c may be covered by a screw cap 0 to protect it from accidental or mischievous dis turbance. The cap or cover I) is of such size and shape as to form within it a chamber 6 in which is received the controlling body. On its top'it is provided with a cap or dome 6 preferably integral, which has a small outlet as at 6 preferably in one side. Secured within the dome 6 is a valve plug d, threaded or otherwise suitably secured within the dome, such. valve plug having a central aperture d which forms at its lower end the valve seat dfland itself being tapered, as at 03 so that its upper end shall have a sharp edge rather than a flat surface upon which some hard particle might lodge and eventually drop into the aperture or bore 03' and clog it.

The controlling body 0 may be made in any suitable manner and of any suitable material, preferably of thin sheet metal, so that it shall have little weight, and prefer ably has a flat bottom 6 and a dome-shaped top 6 This controlling body is hollovv and may or may not contain a small quantity of some highly volatile liquid, such as ether. This controlling body is supported upon the adjustable step 0, preferably by a spindle 6 which may be secured to the bottom of the body. A valve stem 7 passes through the top e of the controlling body and preferablyrests at its lower end, but loosely,

against the bottom e in a socket f. At its upper end the valve stem 7 is suitably formed to' cooperate with the valve seat (1 in the plug d. On'its underside the bottom 6 is formed with vanes e in any suitable manner so that as the steam or air passes into the chamber 6 through the inclined part a of the duct 0?, it may strike the vanes and produce a gradual rotation of-the controlling body and thereby maintain at all times theproper fit between the upper end of the valve spindle f and the valve seat d when they are in contact one with the other.

In operation, the seat 0 having been so adjusted'that the tip of the valve spindle shall cleai the valve seat d when the radiator is cold, so that the entrapped air may escape as the steam is admitted to the radiator, the rise in temperature due to the admission of steam, when the air has been expelled, causes the controlling body to expand and the valve spindle f to close the port- (1, thereby preventing the escape of steain; also, if water enters the chamber 6,

v the controlling body will float as the water accumulates and will cause the valve spindle to close the port d and thereby prevent the escape of Water; and furthermore,when the fire is banked and the steam goes down, reducing the pressure as well as the temperature within the chamber 6 below the normal pressure within the controllingv body, the controlling body will remain in its expanded condition to thereby keep the valve spindle against the port (2 and there fore prevent entrance of atmospheric air into' the radiator and into the heating system.

It will be understood that the form of the casing and the form of the controlling body may be changed to suit difierent conditions and that the invention, therefore, is not limited to the precise form and construction shown and described herein.

I claim as my. invention 1. A radiator valve comprising a rigid casing which forms a chamber in communication with the radiator through a duct and provided with an outlet port, 'a controlling body floatable on accumulated water in the chamber, expansible with an increase of temperature and expansible also with a relative decrease of external pressure, and a 'valve stem carried by the controlling body and normally clear of the outlet port but cooperating therewith to close the valve as the controlling body floats or expands, the inner end of said duct being inclined and the controlling body being provided on its under surface with vanes to be acted upon by the steam or air entering the casing through said duct so that the controlling body shall be rotated, said duct being inclined in the direction of rotation of the controlling body.

2. A radiator valve comprising a casing forming a chamber, said casing having an inlet passage and an outlet port, a controlling body formed of imperforate walls, a spindle secured to and passingthrough the upper wall and extending through said body to the lower wall, and adapted to open and close said outlet port, a stem secured to the lower wall, vanes formed in a radial posi tion on the outer surface of said lower wall to be acted upon by the fluid from the radiator to thereby rotate said controlling body. 3. A radiator valve comprising a chamber composed of a plane bottom section and a cap secured thereon, a rib disposed on the under side of the bottom section and in a plane parallel thereto, a duct formed in said rib and communicating with the chamer through an inclined passage in the bottom section and communicating also with the.radiator, a valve plug situated in the upper portion of the chamber provided with an outlet port therein, a member formed of imperforate walls and adapted to expand and contract under a difi'erence of pressure, radial vanes formed on said member adapted to be actuated by the fluid passing through the duct in said rib, and said member cooperating with said valve plug. This specification signed and witnessed. this 6th dayof August A. D., 1912.

ALBERT H. BUCKELEW.

Signed in the presence of" W. B. GREELEY, WORTHINGTON CAMPBELL.

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