US1355835A

US1355835A - Radiator

Info

Publication number: US1355835A
Application number: US319305A
Authority: US
Inventors: Kaufman Harry; Sciens Samuel
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-08-23
Filing date: 1919-08-23
Publication date: 1920-10-19
Anticipated expiration: 1937-10-19

Description

H KAUFMAN AND S. SCIENS.

RADIATOR.

APPLICATION FILED AUG-23. I919- Patented Oct. 19,1920.

1N V5 NT 0188 HA RRY KA UfTMAN' SAMUEL 561E 5. WT T ORA E V I 4 BY UNITED STATES PATENT OFFICE.

HARRY KAUFMAN'AND SAMUEL soIEN s, oFHAMM'oNn, INDIVANA.

RADIATOR.

To all whom it may concern Be it known that we, HARRY. KAUFMAN and SAMUEL SoInNs, citizens of, the United Stategresiding at Hammond, in the county of Lake and State of lndiana,"have intween adjacent radiating units constructed fromv thin metal such as sheet brass, by forming. a continuous strip of the metal into rounded corrugations transversely of the strip, equally spaced, alternate ones of the corrugations on one side of the/strip 7,

being extended to form spacing members to provide air passages through the completed radiator core. The corrugations adjacent the spacing members are flattened between the edges of the strip in the direction the spacingmembers extend to form water passages in the completed core, extending vertically without interruption or change of direction'from top to bottom of the core. A metal strip thusjformed is folded adjacent one of the spacing members to contain the spacing members between the folded portions of the strip, in whichposition the spacing members alternate with each other and reinforce all of the inwardly projecting corrugations of the unit. second unit of the kind described is placed against the side of the first unit in reversed relatiomthat is to say the top of the second unit is the same as the bottom of the first unit and the right hand side of the second unit is the same as the left handside of. the first unit. In this position a continuous watertube is formed between the units extending vertically and the corrugations of the units fit each other so closely that when the core is assembled by' placing the desired number. of units together,theiedges of adjacent units may readily be secured ,together by dipping them in melted solder which seals the edges of the water tubes.

.- Our invention will best be understood by reference to. the accompanying drawings,

showing a preferred embodiment thereof, in which-- j v i Figure 1 is a perspective View of several units in assembled relation,

Fig. 2 is a sectional view of the parts shown in Fig. 1 taken along the line 2-2,

Specification of Letters'Patent.

Patented Oct. 19, 1920.

Application mea- August 23,;1919. Serial No. 319,305.

Fig. 3 is an enlarged end view of several units in assembled relation, and

Fig. 4 is a side elevation of a portion of one of the units shown in Fig. 3,

Similar numerals refer. to similar throughout the several views.

As shown in the drawings and particup rt larly'Fig. 3, a stri'p'of thin'sheet metal such 1 as brass is formed into a plurality of

corrugations

10, 11, 12, 13, this series of corrugations being repeated throughout the whole length of the strip. The corrugation 10 pro ects to the left of the plane of the origmal strip, for the position'of theparts shown in Fig. 3, and hasa rounded outline, as have the similarly projecting corrugation 12, and the oppositely projecting corrugat on 13. The corrugation 11 extends oppositely to the

corrugations

10 and 12,

andis continued in triangular form beyond the crest of the corrugation 13 to form a spacing and reinforcing member. The corrugations described extend from edge to edgeof the strip in which they are formed. The midportions ofthe corrugations 10 and 112 are flattened as'indicated in F ig. 4

' at 10 12, beginning a short distance from either edge of the strip, the flattening being toward the

corrugations

11 and 13; the ends of the corrugations 10 and12 are not flattened but retain the same general form as the corrugations 13 for a sufficientdistance 7 from the edge of the strip to facilitate soldering orbrazing adjacent units together to :form a complete radiator core.

A strip corrugated asdescribed is folded, preferably immediately adjacent a corrugation 13, so that the corrugations 11 extend toward each other. The strip is cut of proper length to form a unit of the height of the radiator core and-the cut ends are overlapped as indicated at 14. In this position it will be noted that each corrugation llrests against a corrugation13 on the other side of the unit, theseparts being held together when the core. is brazed or soldered.

A second unit is thenformed in the same manner from the same corrugated strip and placed in reversed relation against the first unit, so that its folded portion is down and its lapped portion .is uppermost, and its

corrugations

10,11, 12, 13, closely engage the

corrugations

11, 10, 13 and 12 respectively. 'It will be noted that. for this relation of the units,the flattened portions 10 and12 occur at each corrugation from top to bottom of the units, alternate ones of said flattened portions being on one unit and intermediate ones being on the other unit. The flattened portions are somewhat deeper than the corrugations in which they are formed and as a result, an uninterrupted passageway for water flow is formed between the units closed at its edges by the engagement of the corrugations of the two units as above referred to.

As moreclearly shown in Fig. 2 the water passage thus formed is not of uniform cross section throughout its length, but on the to collect dirt and foreign matter, it does not-flow through the passage with such velocity as to prevent radiation of its heat;

I as the Water enters each portion of increased cross section its flow is somewhat retarded by the slight eddy currents or whirls set up and this affords an ample time interval of contact of the water with the radiating surfaces to insure eflicient cooling of the water.

The radiating surface of the air passages is relatively g eat as aresult of the corrugated construction of the units. Furthermore, the ends of the flattened portions, project an'appreciable distance into'the air passages, and since said ends are oblique longitudinallly ofth'e flattened portions, the effect is that air will enterwith practically no resistance, the thin edged front ends of the air passages and strike directlya' ai'nst the inwardly projecting ends of said flattened portions, after which the air in any air passage enters a portion of decreased cross section between said flattened portions and its velocity is increased,thus securing more effective cooling of the water than if the air flowed through passages of uniform cross section. v

The complete core is formed by assembling enough units in the manner above described to give the vdesired width of core, each unit being of a length equal to the height of the core. Alternate unit s occupy thepositiondescribed above for the first unit, and the intermediate units occupythe position described above for the second unit. The units thus assembled are held closely together by any suitable clamping means, and the adjacentedges of the units are secured together by brazing or soldering, by -ipping or otherwise, which results in clos ing the edges ofthe water tubes including the open places in the end of the corrugations 11, since in practice these are small enough to be readily closed as described, and at the same time each corrugation ll and that this 7 is securely fastened to the adjacent corrugation on the other side of the same unit, thus making a strong rigid core.

lVhile we have shown our invention in the particular embodiment above described, it willbe understood that we do not limit ourselves to this exact construction as we may employ equivalents known to the art at the time of the filing of this application without departing. from the scope of the appended claims.

.maining corrugations on both sides of strip eing of substantially the same depth as each other, said strip beingfolded with said spac 1 mg members extendlng toward each other and engaging intermediate ones of said corrugations on the inslde of the foldedstrip,

said units being held together by solder, the I corrugations on the side the sheet away from said spacing members being flattened between the'edge portions'of the strip to form said water passages from top to bottom of the radiator between adj acent. units.

2. In a radiator, the combination of a plurality'of similar units assembled in reversed relation to form water passages be tween them, each unit comprising astrip of thin sheet metal of a'width equal to the thickness ofthe radiator, said strip having transverse corrugations extending from both its sides across its full width, alternate ones of'said corrugations on one side of saidstrip projecting beyond the intermediate corrugations to form spacing. membersandthe remaining corrugations on both sidesof strip being of substantially the same depth as each other, said strip being folded with said spacing members extending towardeach other and engaging intermediate ones-of said corrugations on the ins'ideof the folded 1 strip, said units being held together by solder, the corrugations forming'said spacing V v members being of triangular cross section and the remaining corrugations being of circular cross section, the corrugations on the side of the sheet away from'said'spacing members being flattened betweenfthe edge portions of the strip to form s'aidwater passages from top to bottom of the radiator between adjacent units. I

3. In aradiator, the combination of a plurality of similar units assembled'in reversed relation to form water passages be- 10 of strip being of substantially the same depth as each vother, said strip being folded with said spacing members extending ,to-[

ward each other andengaging intermediate ones of said corrugations on the inslde of the folded strip, said units being held together by solder, the corrugations forming said spacing members being of triangular V deeper to form a spacing member, sa1d strip cross section andthe remaining corrugations being 'of circular cross section, sa1d corrugations being of a form toleave vertical water passages between 2LCl]2LCGI1t unlts,

the cross section of each vwater passage being unlnterrupted from top to bottom, :and smaller at each point of passing from one pair of corrugations to the next pair than it is between each pair of corrugations.

LA unit for a radiator comprising a strip of'thin sheet metal having transverse corrugations extending from both its sides across its full width, alternate ones of said corrugations on one side of sa1d strip pro jecting beyond the intermediate corrugations to form spacing members and the remalning corrugations on both sides of said 5 strip being of substantially thesame depth as each other, said strip being folded with said spacing members extending toward each other and engaging intermediate ones of said corrugations on the inside of the folded strip, the corrugations on the side of the strip away from said spacing members being flattened between the edge portions of the strip towardsaidspacing members.

5. A unit for a radiator comprising a strip of thin sheet metal having recurring series of transverse corrugations formed therein, said corrugations having the same pitch distance along said strip, andeach series of corrugations consisting of a first corrugation extending from one side of the strip,

a second similar corrugation extending from the other side of the strip, a third similar 7 corrugation extending from said one side of the strip,- and a fourth corrugation extending from the other side of the strip,

7 the first three corrugations being of the same depth and the fourth corrugation being deeper to form a spacing member, said strip being folded to form a unit bringing the fourth corrugations on each side into en'- gagement with the second corrugations on the other side, the first and third corrugations of each series being flattened between the edge portions of the strip in the direc- 5 tion of the second and fourth corrugations *without change of, shape of said first and. third corrugations at the. edge portions of the strip.

6. A unit for aradiator comprising .a

strip of thin sheet metal having recurring series of, transversecorrugations formed therein, said corrugations having the same :p'itch distance along said strip, and each,

series of'corrugations consisting of a first -,.corrugation extending from one side of the strip, a secondsimilar corrugation extending from the other side ofthe strip, a third similar corrugation extending from said one sideof the strip, and a fourthcorrugation extending from thevother side of the strip,f the first three corrugations-being of the same depthand the fourth corrugation being being folded to form a unit bringing-the fourth corrugations on each side into en-v gagement with theisecond corrugations of the other" side, the first three corrugations of each series, being of circular cross sectionand the fourth corrugation being of triangular cross section. v

7. A unitfor a radiator comprisinga strip of thin sheet metal having recurring series of transverse corrugations formed therein, sa1d corrugations having the same pitch distance along said strip, and each serles of corrugations consisting of a first corru ation extending from one side of the strip,

a second similar corrugation extendingfrom one side of the strip, a third similar corrugation extending from said one side of the strip, and-a fourth corrugation extending from the other side of the strip, the firstthree corrugations being of thesame depth and the fourth corrugation being deeper to form a spacing member, said strip being folded to form a unit bringing the fourth corrugations on each side into engagement with the second corrugations of the other side, the" first three corrugations of each series being of circular cross section and the gations formed therein, said corrugations having the same pitch distance along said strip, and each series of corrugations consisting of a first corrugation extending from one side of the strip, a second similar corrugation extending from the other side of the strip, a third similar corrugation extending from said one side of the strip, and a fourth corrugation extending from the other side of the strip, the first three corrugations rugations at the edge portions of the strip.

" being of the same depth and the fourth cor- 9. A formed strip for making radiator units comprising a strip of thin sheet metal 5 having recurring series" of transverse corrugations formed therein, said corrugations having the same pitch distance along said f strip, and each series of corrugations consisting of a first corrugation extending from one side of the strip, a second similar corrugation' extending from the other side of the strip, a third similar corrugation extending from said one side of the strip, and a fourth corrugation extending from the other side of the strip, the first threecorrugations being 7 of the same depth and the fourth corruga- 7 tion beingdeeper, to form a spacing member,

the first three corrugations of-each seriesbeing of circular cross section and the fourth corrugationbeing Oftllflllglllfll cross section. 7 v p v w 10. A formedstrip for making radiator units comprising a strip of thin sheet metal having recurring series'of transverse corrugations formed therein, said corrugations having the same pitch distance along said strip, and each series of corrugations consisting of a first corrugation extendingfrom oneside of the strip, a secondsimilarlcor rugation extending 'fromthe other side. of the strip, a third similar corrugation extending from said one side of the strip, and a fourth corrugation extending from the other side of the strip, the first three corrugations being of the same depth and the fourth corrugation being deeper to form "a spacing member, the first three corrugations of each series being of circular cross section and the fourth corrugation being of triangular cross section, the first and third corrugations of each series being flattened between the edge portions of the strip in the direction of the second and fourth corrugations Without change of shape of said first and third corrugations at the edge portions of the strip.

.In witness'wh'ereof we "hereunto subscribe I HARRY KAUFMAN.

SAMUEL SCIENS.

our names this 18th dayof August, 1919. I