US131467A - Improvement in water-heaters for green-houses - Google Patents

Description

1. A. scoLLAY.

Improvement in Water-Heaters for Green-Houses, &c

Patented Sep. 17, 1872.

Nuenen 'PATENT Grrrcn.

JOHN A. SOOILAY, OF BROOKLYN, NEW YORK.

iMPROVEMENT IN WATER-HEATERS FOR GREEN-HOUSES, &c.

To all whom it may concern:

Beit known that I, J OHN A. ScoLLAY, of Brooklyn, Kings county, New York, have invented certain Improvements relating to W ater-Heaters, of which the following is a speciiication:

The device is intended more particularly for heating water for warming green-houses and analogous purposes 5 but it may be used with success for other purposes.

It will be understood as incased in a waterjaeket or brick-work, with the fire on a grate below, and the heated products of combustion passing through it, and also through a narrow space between it and the surrounding waterjacket or brick-work.

It is capable of being constructed entirelyT by coring. lt is strong, and presents an unusually liberal surface for the absorption of the heat from the gases, and allows for any amount of expansion and contraction of either the side exposed to the iire or the one exposed to theflue-heat.

The accompanying drawing forms a part of this specification.

Figure l is a vertical section through the heater and connected pipe; and Fig. 2 is a plan view of the same viewed from below.

Similarletters of reference iudicatelike parts in both the figures.

The entire heater is formed of cast-iron in a single piece. I willdesignate the main body by the single letter A, using the letters 0.1 a2,

`85e., to designate certain parts thereof. B1 B2 indicate certain projecting parts, and O certain iiues cast therewith. D is a pipe secured around the hole on the upper side by bolts, not represented. The lower face of the main body is formed with circular corrugations, al a2, 8m. These corrugations allow this face of the casting to expand and contract indefinitely withoutserious strain. The lower surface of the bottom is thickly studded with slightlytaperedv projections, marked B1. The edges or vertical sides of the casting are formed with vertical flanges or wings, marked B2. B3 are radial or nearly radial ribs or flanges extending across the lower face of the heater. They perform the double functions of aiding to absorb heat and strengthening the lower face of the casting. All the re-entering angles should be rounded to reduce the danger of cracking, as will be understood by founders. The pipe D being tightly tted with a rust-joint or otherwise, and the whole being mounted in a water-jacket or brick-work, not represented, the radiant heat, as also the heat derived from convection, is rapidly transmitted to the water within the heater, and the effect is increased by the projections B1 and the anges B2, while the entire structure may change its form by the expansion and contraction of the corrugated lower side, as also the beveled upper side, to conform to the varying temperatures.

The construction avoids much of the danger of cracking and distortion experienced with the ordinary forms, and the heating is more eiiicient with a given amount of fuel than any other form of heater within my knowledge. It gives a free and quick circulation to the water, and experiment indicates that the heating efficiency as compared with the best ordinary heater, is as one hundred and twentyeight to one hundred.

I claim as my invention- The heater herein described as a new article of manufacture, the same being formed in one Vpiece with flucs, wings, projections, and corrugations, as shown, and adapted to be secured to the connection D, and to serve therewith within the surrounding water-jacket or brick-work, as herein specified.

In testimony whereof I have hereunto set my hand this 26th day of June, 1872, in the presence of two subscribing witnesses.

JOHN A. SOOLLAY.

Witnesses .Wir C. DEY, ARNOLD HRMANN.

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