US1704088A - Storage heater - Google Patents

Description

March 5, 1929.

G. T. JACOCKS STORAGE HEATER Filed April 8, 1927 Patented Mar. 5, 1929.

were sTA'r-ss P TEN T 0 FVFII E J snonsnr. moooxs, or wrssr nnnrrronn; connno'rrour, Assrenonfiro run wrn'rriocx COIL PIPE oomrnnx, or wnsr rrnn'rronn,ioonn'norrcnr, A CORPORATION or GONNECTICUT.

STORAGE EAT R. i p r Application filed April 8, 1927. s r ai Na 182,124.

This invention relates to storage heaters which are designed to heat the water supplied thereto and to provide'storage for the hot water, especially where the demands on the hot water supply are'subject to fiuctua tions. Storage heaters of this type'are pro; vided W1th a casing or shell and a steam heat ing unit located in the bottom of the shell. It has been the universal and established practice in heaters of this sort to carry the heating section or unit on a cast iron head port or steel nozzle formed separately front the shell and secured thereto by rivets or welding. The head port or nozzle has been provided with a concave face fitted closely against the convex head of the shell, and the heating section has been secured to" this nozzle or head port in suitable manner. This old practice is open to various objectionmamong which may be mentioned the expense in providing the separate head port or nozzleand securing the same in place, and the danger of leakage occurring between the head port and the head of the shell.

The aim of the present invention is to provide an improved storage heater wherein the separate head port or nozzle, as heretofore made, is eliminated, thus very materially re ducing the cost of manufacture of the heaters and avoiding the danger of leakage.

Other objects will be in part obvious and in part pointed out more in detail hereinafter.

The invention accordingly consists in the features of construction, combinationoi elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the appended claims. I

In the accompanying drawings, wherein I have shown, for illustrative purposes, onev ously,'the shell will be provided with a suite ablezinlet for thecold waterand a suitable outlet for the hot water, theinlet and outlet not being shown in the present instance, as the arrangement oif'the same is well-known in the art. The heating'unit, which is located adjacent the bottom of the shell, has pipes or tubes 12 carried by a tube sheet 13. This unit may be of any suitable or approved construction with the tubes extending longitudinally of the shell. The tubes may be U shaped or their inner ends may be connected to a suitable tube sheet associated with; a return header, such constructions being well-known in theart, 114 (lesignates a header engaging the tube sheet 13 and-provided witha steam inlet 15, an outlet 16 and a bafiie or partition 17; It will be understood that the'steam, which is employed for heating the water within the tank, enters the inlet 15, passes through the upper bank of tubes, returns through the lower bank of tubes and passes outthrough the outlet 16. i f

Referring now to the improvements of the present invention, the head 11 of the tank, adjacent its lower edge, is provided with an integral, cylindrical flange A which directly carries the tube sheet 13. This flange takes the place of, and eliminates the use of, the old separate head port or nozzle. The head 11 may be formed of sheet metal and is as by means of bolts 20 which extend through apertures 21 angularly spaced apart about the flange A. If desired, the innerfac'e of the tube sheet may be provided, adjacent/its peripheral edge, with an annular groove 22' in which the outer edge of the flange A is adapted to seat.

It will be seen from the foregoing description, taken in connection with the accompanying drawings, that, by proceeding in accord ance with the present invention, there is provided a very economical, cheap and effective construction; the head 11 may be very economically manufactured; the cost of manufacturing a separate head port or nozzle and securing the same to the head of the shell is entirely eliminated; and a joint between a head port and the shell is avoided. The parts may be very readily assembled.

As many changes could be made in the above construction and many apparently widely different embodiments of this lDVQD',

tion could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the language used in the following claims is intended to cover all of the generic and specific features of the invention herein described and all tatements of the scope of the invention which, as a matter of language, might be said to fall tlierebetween.

I claim as my invention 1. In a storage heater of the character described, a shell having a sheet metal wall, said wall having a header opening therethrough and having the metal at the marginal edge of the opening pressed outwardly to provide a flange about the opening and integral with the wall, the portions of the wall adjacent the flange being pressed into shape to support the flange with its outer edge lying in a plane at substantaially right angles to the plane of the bottom of the shell, a heating unit having tubes extending through said opening into the shell and a tube sheet for said tubes abutting directly against the outer edge of said flange, a header member seated a ainst the tube sheet in registry with the tubes, and means for securing the header member directly to said wall and in binding engagement against said interposed tube sheet.

2. In a storage heater of the character described, a shell provided with a sheet metal convex head, said head having a header opening therethrough and having the metal at the marginal edge of the opening pressed outwardly of the head to provide an integral flange about the opening, said head having the metal adjacent the flange pressed to support the flangewith its outer edge lying in a plane at substantially right angles to the axis of the shell, the head also having angularly spaced bolt holes arranged about the flange, a tube sheet seated against the outer edge of the flange, a plurality of tubes extending from the tube sheet through said opening and into the shell, a header member seated against the tube sheet in registry with the tubes, and bolts seated in said bolt holes of the head and engaging said header member for clamping the same and the tube sheet directly against the flange of the head.

GEORGE T. JACOCKS.

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