US855239A - Radiator for explosive-engines and method of making same. - Google Patents

Description

No. 855,239. PATBNTED MAY 28, 1907.

J. P. FARIES.

RADIATOR FOR EXPLOSI'VE ENGINES AND METHOD OF MAKING SAME. (APPLICATION FILED FEB. 26. 1904.

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MJWWM I No. 855,239. PATENTED MAY 28, 1907. J. F. FARIES.

RADIATOR. FOR EXBLOSIVE ENGINES AND METHOD OF MAKING SAME. APPLIOATION TILED FEB. 26. 1904.

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UNITED STATES PATENT oFFroE,

JAMES F. FARIES, or DECATUR, ILLINOIS.

RADIATOR FOR .EXPIIOSLVEQENGINE'S AND, m'E rHoD Or MAKING SAME- Specification of Letters Patent.. Application filed February 26,1904. Serial No. 196,495;

Patented May 28, 1907.

To all-whom it may concern/.11

Be it known that I, J MEs'F. FARIES, a citizen of the United States, residing at Decatur, in the county of Macon and State of Illinois, have invented certain new and useful Improvements in Radiators for Explosive-Engines and Methods of Making the Same, of which the following is a specification, reference ing drawings.

My invention relates to radiators for explosive engines, and has particularly to do with radiators adapted to be used with aircooled engines, such as are used to a considerable extent for automobiles. In gasolene-engines, air for cooling-purposes, it is the practice to provide. the cylinder with a series of plates or flanges secured closely in contact with the cylinder so as to 'radiate the Heat generated by the explosion within the cylinder; and it has been generall understood by those skilled in the art that copper was the best material for such flanges, owing to its high conductivity of heat. Much difficulty has, however, been experienced in securing a suitable contact between cast-iron, of which the cylinder or explosionchamber has been made. Owing to the high temperature necessary to braze to cast-iron, it has been found to be impracticable to unite the copper flanges to the cylinder in that way, as the copper would fuse, to a greater or less extent, at the brazing temperature; and

consequently, while in some instances a measure of success has been' secured, far more frequently the result has been entirely unsatisfactory. Various other expedients have, therefore, been tried,such as shrinking the copper upon the c linder. This method, however, is not satis actory, owing to .the fact that a proper contact is not secured between the copper and cast-iron.

- restricted to the making 4 Another method that has been employed has been to cast flanges on the cylinder, but

owing to the comparatively low conductivity of the iron the radiation has not been satisfactory. .I have, however, discovered a method by which copper flanges may be united to a; cast-iron ,cylinder; and such method, which, in its broadest aspect, is not of-radiators for explosive engines, but may be employed for the uniting of copper to cast-iron for any other purpose desired, constitutes one of the prinmy. present invention.- My

being-had to the accompany- I or motors employing the, copper and the invention also includes the product of such method.

My improved method consists in uniting the cop er and cast-iron by means of a joining-me ium of such character that it may be united to copper by brazing at a lower temperature than the fusing-point of the copper, and which is also susceptible of being welded to cast-iron. I employ for this purpose sheet steel, the steel being welded to the cast-iron by melting the cast-iron and allowing it to cool in contact with the steel. The copper flanges are then united tothe steel, by brazing in the usual way. For example, in making a cylinder the molten cast-iron is poured into a cylinder of extremely thin sheet steel,the result being that the molten cast-iron raises the steel to a welding heat, the cast-iron and steel being thus firmly and inseparably united. The copper flanges in the form of rings are then placed in position upon the steel outer surface of the cylinder, and brazed thcr to in the usual wa The copper is thus, in effect, brazed to t e castiron cylinder,insuring the parts, with the maximum of conductivity.

In the accom anying drawings,-Figure 1 is an elevation of an automobile-motor, showing the radiator; Fig. 2 is an edge view thereof Fig. 3 is a partial vertical section, illustrating in detail the construction of the radiator; Fig. 4 is a horizontal section thereof, on line 4-4 of Fig. 3; Fig. 5 is an enlargedsec- 'tional detail, further illustrating the construction of the radiator; and Fig. 6 is a pers ective view of part of one of the copper anges.

Referring to the drawings-,7 indicates the motor,of which 8 is the cylinder and 9 the radiator. The external steel shell of the cylinder 8 is shown at 10 in Figs. 3, 4 an 11 indicates one of the radiating flanges, which, as above described, are made of copper and are brazed upon the outer surface of the steel shell of the cylinder. In practice, said flanges are made annular in form and 'are provided'at their inner margins wlth a lip 12, shown in Figs. 5 and 6. employed to determine successive flanges, said flan e the width of said lips if desired.

bent preferably at right-angles, as The ips 12 may be the distance apart of In practice, after-"the casting together of the steel '-shell and cylinder in the manner above described, the flanges ll'are succesthe perfect unionof as shown in Fig. 3, but s may'be placed farther apart than sivel-y flplaced in position thereupon,tlielower ange-being first put'in positibn, and the radiator beivr ilglbuilt u by adding flanges successively. en eac a next to the surface 0' the shel .efi the cylinder. In order to provide for holding a proper amount of spelter the lips 12 areformed by bending the inner margins of the flanges, as shown 1n Fig. 5, so that the upper inner edge of each flange is rounded, as s own at 13 1n Fig. 55- An annular pocket is thus formed for the s elter, which isshown at 14 in Flg. 5. When al the flan es of the radiator have been put in'place t e-c linder is heated in a crucible, or; in any'ot er suitable manner,.

to the tem erature necessary .to braze the copper an steel. When the .spelter' 1s heated hot-enough to flow, owing to the manher in which i-tfis disposed upon the flanges 1t runs downbetween the lips 12 and the suri face'of the shell 10, so that the-lips are effeictive'ly brazed to the shell. I thus secure a perfect union of all the parts of the cylin 'der, with the result'that t ment to the transmission of the heatom ere is no. im edithe cylinders to the radiating flanges or disks,i+'thereby' greatly increasingthe efliciency of the radiator.

. 1 So far as I am aware, no one has'heretofore united copper with cast-iron in the manner described, and my invention therefore includes broadlynot only such 'method, ,but

also the product producedthereby; More-- over, while'my'inventionis designed pr'i-.

manly for use -inuniting. copper and cast-.

iron, I wish'it' to be understood, that the terms fcop er,-c ast-iron and steel, as

1 and herein emp 'oyed, are used in a generic sense, are to be interpreted as covering also equivalent metals, as my invention includes the application of the process, described to the umtin of such other metals as are susceptible o the same treatment:

nge is put in lace a small amount of spelter, or other razing-material, is laced 'u on each flange That which I claim as my invention desire to secure byLetters Patent is,

1.- The method of uniting metals the'fusibility of one'o'r' which is below the brazingtemperature of the other, which consists 1n uniting said. metals to a joining-medium'the fusibility of which is less than that of one of the metals to be joined, and which is suscepr tible of being. brazed to the more fusible of said metals, substantially as described.

2. The methodof uniting metals the fusi bility of one of which is below'the bra'zingtemperature of the other, which consists 1nemp oying a j-oinin -medium the fusibility of which is less than t at of one of themetals to be joined, and vwhich'is susceptible .of being -iron, which consists in wel ing sheet steel-to the iron and then brazing the copper to, the

steel, substantiall as described.

' 5. A cylinder, aving a thin external steel -shell welded thereto, and cop er radiatings flanges brazed to said shell, su stantially as.

described.

shellwelded thereto, and copper radiatingfl'anges brazed to said shell, said flan es having angularly disposed lips at their inner ends, substantially as described.

JAMES. F. FARIES.

Witnesses:

MYERS,

L. MAE SAW-YAR.

6. Acylinder, having a thin external steel d

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