US1448451A - Automobile radiator - Google Patents

Description

Mar. 1.3, 1923. 1,448,451 N. KRAMER ET AL AUTOMOBILE RADIATOR Fild mm 28, 1918 5 sheets-sheet 1 gwuc'nfoui Mar. 1.3, 1923.

N. KRAMER ET AL AUTOMOBILE RADIATOR 5 sheets-sheet 2 Filed June 28, 1918 Mar. 13, 1923. v 1,448,451 N. KRAMER ET AL AUTOMOBILE RADIATOR Filed June 28, 1918 5 sheets-sheet 5 awmwwoza Wm]; firm Ban brindle fla /mew ablfoam m4 Fatcnted Mar. l3, teas.

rattan entree srnresenrenr crates NATHAN KRAMER AND BENJAMIN KRAI'EER, 01E TRENTON, NEW JERSEY, ASSIGNORS T0 TRENTUN AUTO RADIATOR WORKS, 0F TRENTON, NEW JERSEY, A FIRM.

AUTOMOBILE RADIATOR.

Application filed June 28,

To all it may concern:

Be it known that we, NATHAN KRAMER and BENJAMIN KRAMER, citizens of the United States, residin at Trenton, in the county of Mercer and 'tate of New Jersey, have invented certain new and useful lmprovements in Automobile Radiators, of which the following is a specification, reference being had therein to the accompanyin drawing.

%his invention relates to certain new and useful improvements in automobile radiators and more particularly to a construction of core therefor, the object being to provide a core having vertically disposed zigzag water passages and horizontally disposed rectangular air passages in order to produce a radiator which is exceedingly simple and cheap in construction and one which has a high cooling eficiency.

Another object oi? our invention is to provide a core which is formed of strips of brass plaited to form rectangular a-ir passages and indented to form substantially V- shaped depressions so that when arranged in staggered relation with the duplicate strip thus formed vertically disposed water passages will be provided.

Another object of our invention is to provide a fin formed of a straight strip or metal which forms a fourth side to the rectangular air passages, said strip being independent of the water passages in order to enable the same to be formed of a cheaper material. 1

@ther and further objects and advantages of the invention will be hereinafter set forth and the novel features thereof defined by the appended claims.

In the drawings, I

Figure 1 is an elevation of a portion of a radiator constructed in accordance with our invention;

Figure 2 is a vertical section showing the vertically disposed zigzag water passages and horizontally disposed rectangular air passages; v

Figure 3 is a section taken on line 33 01E Fig. E2; and

Figure 4 is a perspective view of a portion 1918. Serial 1%. 2t2,t6. I

between which is arranged a core having 4 vertically disposed zigzag water passages communicating with the water chambers l and 2 and horizontally disposed rectangular air passages extending from the front to the rear of the radiator in order to expose the side walls of the water passages to the air passing through'said air passages.

In forming the vertically disposed water passages I- employ two strips of brass or analogous material, two and one-half to fiveinches wide and of any length desired according to the size of the radiator to be constructed. Each stripis plaited to form outwardly projecting plaits 3 forming three sides of an oblong. The face of each strip is indented to provide a depression d'which terminates short of the "edges of the strips as clearly shown in perspective view in Fig. d

in order to provide a strip having a series of J depressions in one face thereof and a series otlatera-lly extending ribs upon the opposite face The strips thus formed are then placed face to face in stepped relation to provide a zigzag water passage 5 adapted to extend from the upward water" chamber to the lower chamber as clearly shown in Fig. 2.

These strips are preferably secured together by solder or any other suitable means 3 is a plate 6 of substantially the same size as the strip previously described, said stri being formed of any suitable material as thls strip forms a fin to complete the oblong airpassage '2 and is not exposed to the cooling medium employed in the radiator so that it can be formed of cheaper material.

and arranged against the edges of the plaita lln constructing a complete radiator we have shown one manner of assembling these strips in which the upper and lower water chambers are connected together by plates 8 which in this instance performs the function of the fins 6 and by arranging a pair of strips 111 stepped relation with the faces in contact -with one another a zigzag waterv passage is produced separated by horizontally disposed oblong alr passages so as to allow the slde walls of-the water passages formed by the depressions to be exposed to the air currents passing through said air passages.

The straight marginal edges'of thestrips of brass are arranged in contact'as shown in Fig. 4 and by this construction a radiator core is provided which can be {manufactured one another,

' 'siti oned'so as to produce waterlpassageshavconstricted portions and horizontally ments 1 arranged stricted portions.

1 the plaits of the strips,

very cheaply as one set of dies to form 'a strip into the-desired shape as by .arranglngthe strips thus formed with their faces in contact with one another and in stepped --relation vertically disposed zigzagwater passages are formed and in conjunctmn with the fin in the form of a flat plate or strip of material oblong air passages are provided for allowing a 'flee circulation of air to pass the walls or the water chamber. Y

lln Fig. 5 ll have shown the several elein respect to each other so that the plaits 3?" and depressions 4c, ,instead or being arranged in stepp'ed relation with are arranged'in thesame hori-' zontal plane whereby substantially vertical .water' passages are formed having con- By arranging the strips in this manner a difierent design is obtained and a construction isfp rovided which has a high cooling eficiency. y.

In order to provide means forsupportmg 6' having at eachedlge upon opposite faces, a projection 6 which is formedby, punching the metal outwardly; from opposite sides whereby a concaved depression is formed on the strip and a convexed boss When[ the strips wlth'the depressions and plaits are arranged as shown in Figs. 5, 6 and 7, the plaits will rest on'the bosses, as clearly shown, and by constructing the fin strips in this manner,

disposedafir "passages '7 p e gk e cnption 1t Wlll be f -seen that we 'haveprovided an automobile its cireulation through if gradiator with w;

'vide'vertically disposed zigzag water passages in order to retard the flow-of water in passages geommunicating l 'the'radiater so as to strips arranged face to face in order-to pro- "obtain a high coolingjeficiency;

llt will bofseen that by the plaitmg of ens-n51 Qair passages.

it is only necessary-to havell provide a fin strip a bore formed of duplicate air passa these strips three sides of an. oblong are formed w ich is completed by'a' fin in the form of a flat strip or plate so as to provide j I substantially oblong horizontally dlsposed We claim: g 1. Anautomobile radiator having a core provided with vertically disposed zigzag water passages and horizontally disposed air passages, the verticallyjdisposed .wa'ter passages being formedof duplicating strips arranged in stepped relation with one another having contacting faces, each strip. having a series of upon one face, and a series of depressions upon the opposite tal planes, and fiat fins arranged to engage the ends of the plaits to obon airpassage's.

provided waterpassages and horizontally disposed substantially rectangular air passages, the water passages beingformed strips having contacting faces, the contactotsaid. strips being provided with ing faces "recesses substantially V-shaped in cross section, said strips being arranged in stepped relation with oneanother, the outer faces of said strips having laterally extending said recesses forming opposite sides of an oblong-and flat fin arranged to engage the edges ofsaid plaits forming the third side of said oblong; 4 3. A radiator, having a core formed of plaited strips toprodiice laterally extending horizontally disposed plaits, said strips having recesses between the ribs,-in the op:

posite faces of said strip from the ribs two of said strips being arranged in contactin stepped relation to. produce a zigza cally disposed wat'er passage,- and at'fins arranged against the edges of said plaits 110 forming horizontally disposed substantially {rectangular air passages. I 4 4. An automob'le radiator having a'core in automobile 'radiatorhaving a core. with vertically. disposed .zigzagi;

laterally extending plaits face in difierent horizonform substantially of duplicate .95 plaits between the enlargements formed by ice vertiitormed of duplicate plaited strips provided with recesses-inthe opposlngfaces thereon;v a

said 'strips havmg contacting faces and a'r ranged instepped relation with-one'another .to produce a verticallydisposed water pas-.

sage, the plaits of saidstrip extending-from the opposite 'fac'eofthe strip containing the recesses and flat strips arranged against the: 'edg'esof the plaits forminghorizontally-disj posed substantially rect'angularair' passages.

5. automobile radiator composed ofan upper "and lower water .pcharnber' having a core arranged between'smd'; chambers .pro

videdfwith vertically-disposed zigzag. water.

" with Said- Water y a sr sea oblong esextending frorn'the front to the.

chambers, and horizonta rear of saidradiator, said core being formed of duplicate plaited strips and fins, said strips having recesses formed in the opposing faces thereof, the faces of each pair of sald strips being arranged in contact with one another and in stepped relation, the faces and recesses being arranged in different horizontal planes and upon opposite sides of said strip, said'fins being arranged to engage the edges of the plaits.

6. An automobile radiator having a core provided with vertically disposed water passages formed of duplicate strips arranged in stepped relation with their faces in contact with one another, said strips being provided with horizontally disposed plaits upon one face and recesses in the opposite face, said recesses forming a portion of the wall of the vertically disposed water passage said plaits forming opposite sides of the walls of each air passage, the plaits and recesses being arranged in different horizontal planes the fins being arranged against the edges of the plaits to form the third side of each horizontally disposed air 7 passage.

7. An automobile radiator having a core formed of duplicate plaited strips provided with receses in the faces thereof, each pair of strips having contacting faces to produce a vertically disposed water passage, the recesses and plaits of said strips being arin different horizontal planes, and flat strips arranged against the edges of the plalts' formlng horizontally disposed air passages,

8. An automobile radiator having a coil provided with vertically disposed zig-zag water passages and horizontally disposed substantially rectangular air passages, the vertically disposed water passages being formed of duplicate strips arranged in stepped relation with one another and having connecting marginal portions secured together, each strip having a series of lat erally extending plaits upon one face extending the full width of the strip and a series of embosses in different horizontal planes terminating short of the edges of the strip and forming upon the opposite face of the strip a series of depressionsand flat fins arranged to engage the ends of the plaits to form substantially rectangular air passages.

In testimony whereof we hereunto afiix our signatures in the presence of two witnesses;

NATHAN KRAMER. BENJAMIN KRAMER.

Witnesses: v

F ANNIE D. BUDSON, ALEXANDER BUn'soN

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