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Publication numberUS987361 A
Publication typeGrant
Publication dateMar 21, 1911
Filing dateMar 6, 1906
Priority dateMar 6, 1906
Publication numberUS 987361 A, US 987361A, US-A-987361, US987361 A, US987361A
InventorsJohn W Hasburg
Original AssigneeJohn W Hasburg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Engine heat-radiating structure.
US 987361 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


APPLICATION FILEIDMAR. 6. 1906. 987,361, j Patented Mar.21, 1911.


4;; M I \J. 1 .Z no? Q J. W. HASBURG.



987,361. 7 Patented Mar.21, 1911.

2 SHEETS SHEBT 2 72-65 66 I7zz/e7zZ0/ Ja/zfa' /9 /640 5 Lug JOHN W. HASBURG, OF CHICAGO, ILLINOIS.


Specification of Letters iatent. Patented Mar, 1911,

Application filed March 6, 1906. Serial No. 304,529.

To all whom it may concern:

Be it known that I, Journ -W. Hasnunc,

a citizen of'the United States, residing at .novel construction and arrangement of the radiating blades or fins and intermediate washers, and to provide a built-up radiator structure easy of application to a cylinder body, lending strength to the said body and afiording maximum heat-conductivity between the blade structures and the body.

Other and further objects of my invention will become apparent to those skilled in the art from the following description, taken in conjunction with the accompanying drawings, wherein;

Figure 1 1s a part-sectional view of an en gine' cylinder having affixed thereto two blades of a built-up radiator structure. Fig. 2 is an elevation of a fragment of one of said blades, the cylinder being shown in section. Fig. 3 is a fragmentary section of a modified embodiment of my invention, and

.Fig. 4 a fragmentary elevation thereof.

Figs. 5 and 6 are like views of another embodiment of my invention, and, Fig. 7 is an elevation with part in section, of a fragment of a locking ring shown in Figs. 5 and 6.

Throughout the drawings like numerals of reference refer always to like parts.

In the drawings, 10 indicates an engine cylinder body, of any size or proportion, ex- I teriorly screw -threaded, as shown at 11,

throughout its length and preferably termina'ting atone end in a flange 10' to which may be securedthe cylinder head 12.

The radiator structure is built up preferably of a series of blade units, each comprising an annular member, screw-threaded for engagement with the threads 11, at its inner periphery, and preferably provided with apertures for air circulation and projections for heat distribution.

Referring now to Figs. 1 and 2, each blade unit 13 has a thickened base portion 14, of

size sufficient to include a plurality of the screw-threads on the cylinder, forming a relatively strong central zone, gradually taporing outward, and each ,blade is provided with apertures 15 and'projections 16, the projections and apertures being formed by striking up from the blade semi-circular lips, which constitute the projections 16 and leave holes 15 in the blade. I

In the assembling of the structure, washers or thin rings 17 preferably of copper, are provided between the"blade-bases, or enlargements, to receive the enlargements in contact therewith. Suchrings 17 are in screw-threaded engagemenflwit-h the cylinder and arepreferably wide enough to form small fins, to project between the tapering parts of the blade enlargements, and they afford means for compensating for slight irregularities of the side surfaces of the blade enlargements should such exist, and insure proper heat conductivity between the adjoining blade enlargements.

In Figs. 3 and 4:, I have shown a somewhat similar arrangement, the blades 12% having base enlargements 1%, but having tions 16 and having said projections 16 provided on both sides of the blade to afl'ord a much larger area of heat disseminating surface than is provided by the arrangement shown in Figs. 1 and-2.

In Figs. 5 and 6 I show an arrangement embodying blades 13, with apertures and projections 15", 16 like those shown in Figs. 1 and 2, theentire blade structure being of uniform thickness and screw-threaded upon the cylinder. Spacing lock nuts or rings 18, each preferably channeled peripherally, as shown at 19 are provided between the blades to hold them properly spaced, lock them firmly together, strengthen the cylinder, and, by the large surface exposure ob tained by channeling, afford a good heat disseminating medium. Said nuts or rings 18, in the modified form, are of sufficient width to encompass a. plurality of threads of the cylinder, corresponding to the similar formation of the blades 13 of Fig. 1.

In connection with any of these constructions I preferably coat each of the parts before assembling, and the whole structure after it is assembled,with cop er, by electro-' plating, for the ,purposes 0 bonding the parts together for heat communication, rendering the structure more heat conductive, and giving a pleasing finish. It will be seen that. in each of these constructions intimate strengthened by the addition of t e encompassing, (peripherally uninterrupted bladeunits," an the blade locking members, and that ease of construction and facility in assembling are insured. Thus, the screw-- thread feature of my invention not only affords a new method of attaching bladesand rings, but it also renders a comparative easy passage for heat from the cylinder body to the blades through the intimate union of the interlocking threads, and renders the structure substantially homogeneous in efl'ect while possessing '-all the advantage of the assemblage of parts.

The blades themselves provide for circulation therethrough and, by the provision of projections, expose a large heat dissemi nating area in the path of travel of circulating air. a The advantages of the blade structures are, in a measure, retained if the blades be shrunk, brazed or otherwise secured on the cylinder body,

While I have herein described in some detail specific embodiments of my invention, which I believe to be newand advantageous,

it will be apparent to those skilled in the art that other changes might be made in the s ecific construction without departure .from t e spirit and scope'of' my invention.

" Having thus described myinvention, what I claim and desire to secure by Letters Patent of the United States, is:

1. The combination with an exteriorly screw-threaded cylinder body, of a series of annular blades and a series of soft metal washers, the members of one of said series being enlargled adjacent the cylinder body and screw-t readed to embrace a plurality of the threads of the cylinder body, and the members of both of said series bein screwed over the cylinder in alternating re ation.

2. In a structure of the character described, the combination of a cylinder body providing on its outer surface uniformly-spaced, re atively fine pitch, screw-threads, said threads having an electroplated coat of metal thereover, and separable parts including a series of independent annular blades having portions struck therefrom to form air-circulation apertures and heat-dis tributing projections, each said blade having interior screw-threads corresponding with the threads of the cylinder and having an electroplated coat of metal thereover, and a series of soft metal washers each having an electroplated coat of metal thereover, the members of both of said series being screwed over the cylinder in alternating relation and having a uniting electroplated coat of metal applied thereto after they have been assembled.

In testimony whereof I hereunto set my hand in the presence of twowitnesses.

, JOHN W. HASBURG. In the presence of Gno. T. MAY, J12, MARY F. ALLEN.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3104136 *May 19, 1960Sep 17, 1963Henry H MerrimanBushing
US3687194 *Jun 4, 1970Aug 29, 1972Scholl Dr Ing GunterRibbed pipe unit
US4638854 *Jun 15, 1983Jan 27, 1987Noren Don WHeat pipe assembly
Cooperative ClassificationY10S29/012, F28F1/30