US1343169A - Tank - Google Patents

Description

I. C. DOUGLASS.

TANK.

' APPLlCATlON FILED 050.26. 1918.

PatentedJune 8, 1920.

INVENTOR IRA. C. DOUGLASS, OF ROCHESTER, N EW YORK, ASSIGNOR T0 OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

TANK.

Specification of Letters Patent.

Patented June 8, 1920.

Application filed December 26, 1918. Serial No. 268,253.

To all whom it may concern:

Be it known that I, IRA O. DOUGLASS, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Tanks; and I do hereby declare the'followmg to be a full, clear, and exact descriptionof the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference numerals marked thereon.

The object of my invention is to construct a steel tank having an inner wall lined with enamel or glass and an outer wall spaced from the inner wall and forming a jacket for a refrigerating liquid and means for com pensating for the uneven expansion and contraction between the inner and outer walls. More specifically, the object of my invention is to construct a metal tank having a tubular outlet and an outer wall forming a jacket for a refrigerating liquid and a ring of p11- able material inserted in the outer walland surrounding the tubular outlet and adapted to compensate for expansion or contraction due to changes in temperature. To these and other ends the invention resides in certain improvements and combinations of parts all as will be hereinafter more fully de scribed, the novel features being pointed out in the claims at the end of the specification.

In the drawings:

Figure 1 is a detail section through the bottom of the tank, constructed according to my invention, and

Fig. 2 is a bottom plan view of the same.

Similar reference numerals throughout the several views indicate the same parts.

The tank comprises an inner wall 1 of steel or other suitable metal having a lining 2 of porcelain or glass for protecting the wall 1 from the action of acids or other liquids contained in the tank. In the bottom of the tank, the wall 1 is provided with an opening and welded or otherwise secured to wall 1 and surrounding the opening, is a tubular outlet 3 threaded at' its lower end to receive a stop cock or other outlet conductor. The porcelain lining of the tank is extended through the outlet tube 3. Surrounding the outlet tube 3 and spaced therefrom is a wall 4 substantially parallel with the wall of the outlet tube 3 and projecting downwardly from the inner wall 1 to which it is secured by welding or other suitable means.

The member't is cylindrical in form and at its lower end the wall is enlarged as at 5 and tapped at suitable intervals for the reception of bolts (3, the purpose of which will hereinafter appear. Surrounding the sides and bottom of the inner wall 1 of the tank is an outer wall 7 spaced therefrom thereby constituting a closure and adapted to receive and hold a refrigerating or other liquid in contact with the inner wall 1 of the tank. The wall 7 is preferably constructed of metal and is provided with a circular opening somewhat larger in diameter than the diameter of the cylindrical member 4:. Adjacent this circular opening the wall 7 is provided with apertures suitably spaced from each other and adapted to receive the bolts 8. The space between the opening in the outer wall 7 and the outer or lower end of the member 1 is closed by means of a ring 9 of pliable material such as lead or copper, secured at its edges to the outer wall and to the outer-end of the member For retaining the ring 9 in position, I employ suitable retaining means by means of which it is clamped firmly in contact with the members 7 and 4. The ring 9 is provided adjacent to its outer periphery with apertures spaced to correspond with the apertures of the wall 7 for receiving the bolts 8. The bolts 8 are inserted through the apertures in thewall 7 and in the ring 9 and receive a retaining ring 10 also apertured to correspond to the apertures in the wall 7 and at their lower or outer ends and bolts 8 receive nuts adapted to clamp the pliable ring 9 securely between the ring 10 and the wall 7. The pliable ring 9 is also apertured adjacent its inner periphery and retaining ring 11 overlies the same and is apertured to correspond with apertures in the member 5. The bolts 6 pass through the apertures in the ring 11 and take into the tapped openings in the member 5 and are adapted to securely clamp the inner margin of the ring 9 between the ring 11 and the member a. The pliable ring 9 may be bent or corrugated as indicated in the drawings and serves to permit free expansion or contraction of the inner and outer walls relatively to each other when the tank is subjected to changes in temperature.

It will be noted that I have constructed a tank having inner and outer walls providing a space between them for a refrigerating liq- THE PFAUDLER COMPANY,

uid or it may be a liquid adapted to apply temperature to the contents of the tank. These liquids will cause an expansion or contraction of the .wallsv in contact therewith. The provision of the pliable ring of metal in the outer wall permits the free expansion or contraction of the outer wall relatively to the inner wall. The tank is lined with enamel or glass fused to the innersurface of the inner wall or otherwise applied thereto. in temperature without providing means for compensating for expansion and contraction of the walls would be liable to cause buc: kling or warping of the walls which would destroy or'crack the lining of the inner wall unless some provision were made compensating for this expansion and contraction. By providing a pliable seam such as my ring 9 described above in the wall of the tank, free expansion and contraction of the material of the wall is permitted without causing excessive'strain or tension. It will be noted that since the ring of pliable material is inserted between the outer wall and the cylindrical member 4: formed integral with the inner wall it is in effect inserted between said walls and adapted to compensate for uneven ex pansion and contraction between said walls.

WVhile I have used the term refrigerating liquid throughout the specification and claims in referring to the material to be contained in the jacket or the space between'the inner and outer walls, l do not intend to limit myself to any particular material as a fluid for applying heat such as hot water or steam or a refrigerating fluid such as ammonia may be employed \VltllOLlt departing from the spirit or cope of the invention.

I claim as my invention:

1. A tank comprising an inner wall having an outlet portion and a frangible lining, a cylindrical wall thereon and surrounding and spaced from said outlet portion, an outer Changes and contraction of said outer wall.

2. A tank comprising an inner wall having an outlet portion and frangible, lining,

a cylindrical wall thereon and surrounding and spaced from said outlet portion, an outer w all spaced from said inner wall and forming a jacket for heating or cooling media, and a corrugated ring of pliable material secured to said cylindrical wall and adjacent edge of'the outer wall and adapted to permit of free expansion and contraction of said outer wall.

3. A tank comprising an inner wall having a tubular extension thereon, a cylindrical wall also thereon surrounding and spaced from said tubular extension, an outer wall spaced from said inner wall and forming a jacket for heating or cooling media, and a section. of pliable material connecting said outer wall with said cylindrical wall and adapted to permit the free expansion and contraction of said outer wall.

4. A tank comprising an inner wall and an outer wall spaced therefrom and adapted to act as a jacket for heating or cooling media, saidinner wall having a tube extending through said outer wall, and an expansible connection between said inner and outer walls surrounding said tube.

5. A tank comprising an inner wall and an outer wall spaced from said inner wall to provide a jacket for heating or cooling media, a tubular extension on said inner wall, and an expansible connection between said outer and inner walls, surrounding said tubular extension.

IRA G. DOUGLASS.

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