US929368A - Radiator. - Google Patents

Description

W. ANDREWS.

' RADIATOR.

APPLICATION FILED JAN. 29, 1908.

Patented July 2'7, 1909/ W1 M 4 4 2 50 r27 64-5 V \II i I mnzvl, a mums ca, Pnommnoeums. WASHINGM w c.

RADIATOR.

Specification of Letters Patent.

Patented July 2'7, 1909.

Application filed January 29, 1908. Serial No. 418,245.

To all whom it may concern:

Be it known that I, WILLIAM ANDREWS, a citizen ofthe United States, residing at Brooklyn, New York, have invented certain new and useful Improvements in Radiators, of which the following is a clear, full, and exact description.

The object of this invention is to improve the construction of single line steam radiators so that a regulation of their temperature may be readily efiected to secure the maximum heating capacity of the radiator, or its heating to a less degree without throttling the steam supply.

A further object is to enable such regulation to be effected in a given type of radiator, i. c. single line radiator, so that hammer in the pipes will not be prevalent therein.

In carrying out this invention, I make use of the principle set forth and described in my United States patent, dated October 22nd, 1907, No. 869,042. The broad principle as shown in that patent for the regulation of a double line steam system, is to cause those units of the radiator which are not to be heated to fill up with air, which is always carried by the steam in a system, and thus be rendered non-productive of heat. When it is desired to employ the entire heating surface of the radiator, the air is let out of all the units and the steam allowed to occupy the entire area of the radiator. In order to prevent water hammer in changing from no heat to full heat, or partial heat; or vice versa, I make use of a double branch to the radiator from the supply pipe, one of which branches I locate in the lowermost portion of one of the radiator units, so that a drainage may be formed for the water that may collect.

The scope of my invention will be pointed out in the claim.

In the accompanying drawings, Figure 1 is a side elevation, partly in section of a radiator constructed according to this invention. Fig. 2 is a transverse vertical section. of the regulating valves of the same drawn to an enlarged scale.

As shown in the accompanying drawings, the regulator is composed of the usual hollow units or chambers 1, connected by ferrules 2 and provided with a steam pipe 3, globe valve 4. From the globe valve a pipe 5 leads to one of the sections of the radiator, preferably other than the first section of the same, opening into such section or unit at its lowest level. A branch pipe 6 leads to the first unit of the radiator at a higher level than the pipe 5 in the usual manner. To any one of the units I apply the following valve mechanism to secure the regulating control, which I have shown in the drawings as applied to the last section, that is, the one farthest from the steam entrance: It consists of a shut-01f valve 7 provided with a handle 8 5 the valve is adapted to be screwed into the unit of the radiator, and on its farther side from the radiator I afIiX to the shutoff valve an automatic air release valve of any type well known in the art. I have shown herein an automatic valve 9 as provided with a casing having an outlet 10, with a valve body llwithin the casing, and an adjusting lug 12 for regulating the position of the va ve body 11. This valve body is made of a material as is common in the art, which will expand when heated, and in expanding, close the entrance to the valve casing from the passage 13 of the cut-off valve 7.

When it is desired to have the entire radiator heated, the cut-oil valve is turned as shown in Fig. 2, when all air that is in the radiator will pass through the automatic valve and out into the roomuntil steam or hot water or heated air comes into contact with the valve body 11, and expands the same when, as is usual in such valves, the outlet will be closed. If it is desired to have but half the radiator active, the cut-01f valve 7 is closed so as to make in-active the automatic valve when the air held by the steam will gradually accumulate in the right hand units shown in the drawings, and those units will cease radiating heat, remain cool, and all the heat from the radiator will be radiated from the left hand units of the same. When it is desired to heat the entire radiator, the cutoil valve needonly be turned to put into operation the automatic valve when all air in the system will filter out through the automatic valve, and the entire radiator become heated. All water of condensation will readily pass off through the pipe 5 without producing any annoying hammering.

It will be obvious that a considerable condensation will take place when the hot steam from the hot portions reaches the portions which have before been kept cool, and at such times it is necessary to prevent water hammer, although at all times it is advisable to do so. The air which accumulates in the top of the units is always colder than the steam,

and consequently falls to the lower portion of the units, being replaced by steam, and being forced out through the automatic valve at the right of the apparatus. The most effective position for automatic valve and cut-ofl' would therefore be at the base of the radiator, but in practice, I have found it unsafe to place it there, as careless persons are apt to step on the same, and break it. In practice, it works practically as well as indicated, at the top of the section, or unit, fartherrnost from the steam inlet.

I claim as my invention:

A radiator of the type described, having a plurality of chambers 1, a single steam supply pipe 3, a valve 4 therefor, a double branch passage from said steam inlet to the radiator, one branch of which communicates with an end radiator unit 1 a distance from its bot.-. tom, the other branch of which communicates with a radiator unit 1, intermediate of the ends of the radiator, and near the steam inlet, and at the lowest point of said unit, said second branch communicating with a different unit than is communicated with by the first branch.

Signed at New York city this 28th day of January, 1908.

WVILLIAM ANDREWS. Witnesses F. WARREN WRIGHT, MABEL DITTENHOEFER.

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