US1662236A - Steam and hot-water radiator - Google Patents

Description

March 13, 1928.

E. COUPLAND STEAM AND HOT WATERBADIATOR Filed Sept. 11. 1926 [nzreniar Ernesi Enzmland Patented Mar. 13, 1928.

UNITED STATES PATENT OFFICE.

ERNST COUPLANID, OF TORONTO, ONTARIO, CANADA, ASSIGNOR OF ONE-FOURTH TO EDMUND MGGILLIVRAY, ONE-FOURTH TO HENRY EDWIN SILVEBTI'IOR-NE, AND ONE-FOURTH TO FRANK OSBORNE, ALL OF TORONTO, CANADA.

STEAM AND HOT-'WATER RADIATOR.

Application filed September 11, 1926. Serial No. 184,877.

My invention relates to improvements in steam or hot water radiators, and the object of the inventionis to devise a radiator this type which will be light, strong and durable, which will not corrode, which will have maximum radiation for any given pressure, and which due to its even expansion and contraction will eliminate the detrimental results due to freezing, and it consists essentially of the arrangement and con struction of parts as hereinafter more particularly explained.

Fig. 1 represents a perspective view of a radiator section constructed in accordance with my invention.

Fig. 2 is a longitudinal sectional view through one of the headers intermediately broken away for a part of its length.

Fig. 3 is a further enlarged sectional dctail showing the steam pipe connection to the enclosure of the upper header.

Fig. 4 is a sectional view similar to Figure showing the hot water connections to the lower header 4.

In the drawing like characters of reference indicate corresponding parts in each figure.

1 and 2 indicate the upper and lower headers which are preferably octagonal and connected by the water tubes 3 which are weld ed thereto to form an integral unit. The ends of the headers 1 and 2 are open ended and provided with closures 4, such closures being provided with internal flanges 5 fit ting within the ends of the headers 1 and 2 and welded therein.

Each closure 4 is provided with a central boss 6 recessed as indicated at 7 so as to receive an end of a perforated tube 8, which ends are freely held within the recesses to permit free expansion and contraction of the headers and yet definitely space the closures 4 apart, the tubes 8 being perforated in order to permit of their even contraction and expansion.

WVhen steam is used as the heating medium duce a precipitation of water thereby lowcring the temperature of the radiator.

When hot water is used as the heating medium the orifice in the closure 4 above re ferred to is plugged and the outlet and inlet 9 and 10 are employed, the hot water passing in through the inlet 9 and rising through the water tubes 3 until it gradually cools when the cool water gradually descends passing out from the outlet 10. M i

The radiator section such as I have described may be formed of sheet aluminum which is light, strong, durable and will radiate amaximum amount of heat.

It will also be understood that the tube 8 is perforated to a greater extent towards the ends than at the centre, the closures at being of cast metal absorb heat more slowly than the sheet metal of the units and that therefore if the tubes 8 were perforated evenly the centre of the section would heat prior to the ends and thereby cause a buckling action in the metal.

What I claim as my invention is:

A radiator section formed of sheet metal and comprising upper and lower tubular headers and tubes extending between the headers and welded thereto to form an integral unit, closures for the open ends of the headers, and perforated tubular spacer extending longitudinally through each of the headers and slidably held at its ends in the closures to pc unit of the free expansion and contraction of the headers.

nnnsr COUPLAND.

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