US1852168A

US1852168A - Radiator

Info

Publication number: US1852168A
Application number: US438672A
Authority: US
Inventors: Alfred R Kuhn
Original assignee: Metropolitan Engineering Co
Current assignee: Metropolitan Engineering Co
Priority date: 1930-03-25
Filing date: 1930-03-25
Publication date: 1932-04-05
Anticipated expiration: 1949-04-05

Description

April 5, 1932. A R KUHN 1,852,168

RADIATOR Filed March 25, 1930 2 Sheets-Sheet 1 TE i4 bile M4 A @M A. R. KUHN April 5, 1932.

RADIATOR Filed March 25. 1950 2 Sheets-Sheet rlllllllillrllllllkl A III avwewtoz AL F/FED 1Q. ffi/hw.

Patented Apr. 5, 1932 UNITED STATES PATENT OFFICE ALFRED R. KUHN, OF QUEENS VILLAGE, NEW YORK, ASSIGNOR T METROPOLITAN ENGINEERING COMPANY, A CORPORATION OF NEW YORK RADIATOR Application filed March 25, 1930. Serial No. 438,672.

The invention provides a radiator in which certain sheet metal parts are applied in a new way which facilitates the manufacture of the radiator and effects certain improve- F ments in the finished structure.

Fig. 1 is a front elevation and Fig. 2 a plan of a radiator;

Fig. 3 is a perspective at one end of the upper portion of the same;

Fig. 4 is a perspective of the sheet metal structure;

Fig. 5 is a perspective of a certain clip or fastening ring with one end in section;

Figs. 6 and Z are vertical transverse sections showing the ring in different positions.

Fig. 1 illustrates a radiator of the Murray type, the heating element being a tube 11 extending back and forth in several sections, and an extended area of sheet metal being applied to the opposite sides forming vertical passages for heating and inducing a draft of air.

The apparatus may be usedalso for coolin the air by circulating brine through the tu and may be used for various other purposes and with various other sorts of heating element, (such as an electrical strip heater, for example). H

The present invention is directed chiefly to the securing of the sheet metal to the heatingrelcment.

he extended area is provided by sheets, preferably of copper, corrugated to form lateral fins 12 connected in' pairs at their outer edges by longitudinal portions 13 and alternately at their inner edges by longitudinal portions 14, the latter being bent out at intervals into recessed portions 15, Fig. 4, embracing the pipe 11. Two such sheets are assembled. at opposite sides of the pipe as shown and are then fastened together. They may be at once clamped so tightly as to provide the desired good heat conducting joint of large area between the pipe and the sheets. Or the connection herein described may be supplemented by dipping the radiator in solder, tin or other metal, or supplemental mechanical-means may be used for holding the parts together.

The longitudinal plates 14 are punched with holes 16 immediately above and below the recessed portions 15. At each joint a ring 17, preferably of steel or similar stiff metal, is passed through the openings 16 above and below the pipe and has its

end flanges

18 and 19 fastened together.

The ring is preferably of heavier metal than the sheet and has such a shape that when its ends are united it presses the recessed portions of the sheets closely against the pipe 11 and around practically the entire circumference of the pipe.

The ends of the ring may be punched to form welding projections 20 (Fig. 5) on their meeting faces so that when pressed together during the passage of a welding current, the heat will be concentrated in these projections and a good weld will be secured. The ends may be welded in other ways, or they may be fastened by rivets or screws orby crimping, or in other mechanical ways.

The location of the ends of the clip may be varied, as may be most convenient in view of the shape of the sheet metal and other considerations. Instead of the corrugated sheets, a great variety of other shapes may be utilized in connection with the approved fastening means.

M Fig. 3 shows the ends in horizontal line with the centre of the pipe.

Fig. 6 shows them in vertical line, and Fig. 7 shows them arranged obliquely.

Fig. 3 shows the sheet metal applied in a different form from that of the other figures, instead of a continuous sheet for the full length of the radiator, a number of successive units are arranged along the tube, each comprising an inner plate 14 from the edges of which are two lateral fins 12 extending outward with flanges 20 on their outer edges; which are substantially like the outer longitudinal plates 13 of Fig. 2 except for the space between them. By using units of this shape they may be spaced as far apart or as close together as desired.

Various other modifications may be made by those skilled in the art without departing from the invention as defined in the following claims.

I claim:

1 A radiator including in combination a heating element, an extended area structure in two parts applied respectively to opposite sides of the heating element and means for fastening said parts in place comprising a clip passing around the portions thereof which are in contact with the heating element and having its ends united.

2. A radiator including in combination a heating element, an extended area structure in two parts applied respectively to opposite sides of the heating element and comprising sheet metal with portions recessed to embrace the heating element and means for fastening said parts in place comprising a clip fitting against the recessed portion of the sheet metal and passing around the element and having its ends united.

3. A radiator including in combination a heating element, an extended area structure applied thereto consisting of a corrugated sheet having longitudinally extending portions which are recessed to embrace the heating element, having openings immediately beyond such recessed portions and means for fastening the parts together comprising a clip extending around the heating element passing through said openings and having its ends united.

' 4. A radiator including in combination a heating element, an extended area structure applied thereto having a portion engaging the heating element and another portion extending outward therefrom and means for fastening said structure in place comprising a clip passing around only the portion which is in contact with the heating element and having its ordinarily free ends united to hold the parts in close contact.

5. The radiator of claim 4, the extended area structure being comparatively soft and being recessed to embrace the heating element and the clip bein comparatively. still 45 so, as to hold the parts rmly in shape.

In witness whereof, I have hereunto signed my name.

ALFRED R. KUHN.