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Publication numberUS749325 A
Publication typeGrant
Publication dateJan 12, 1904
Filing dateJan 8, 1903
Publication numberUS 749325 A, US 749325A, US-A-749325, US749325 A, US749325A
InventorsOtto Roderwald
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 749325 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



No. 749,325. PATENTED JAN. 12, 1904.





Isa-5 TH; mama Pznms co. PHOTO-Linda, WASWNGTON. o. c

U ITED TATES Patented January 12, 1904.

oTTo; RODERWALD, or cinoAeo; ILLINoIs.


SPEGIFIGATIONfOrming part of Letters Patent No. {749,325, dated January 1904 Application filed January 8} 1903.

To all whom/it may concern}:

Be it known that I, Orro-RoDERwALn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,

have invented certain new'and useful Improvements in Liquid-Coolers, which are fully set forth in the following specification, reference being bad to the accompanying drawings, forming a part hereof, and in which Figure 1 shows my said new liquid-cooler in elevation. Fig.2 shows the same in vertical section. Fig. 3 shows in plan the interior of one of the heads or ends. Fig. 4 shows my said new device in sectional elevation and said part shown in section on the plane and cylindrical surfaces 00 a: andy of Fig. 8. Fig. 5 shows the bottoin head or end in side elevation. Fig. 6 shows Fig. 5 in central vertical section. Fig. 7 shows an element of my said new device in central vertical section. Fig. 8 shows Fig. 7 entire and in plan view. Fig. 9 shows, on an enlarged scale, a transverse section of an element of my said new device, taken through the center of one of the guiding or assembling locking mechanisms of A in side elevation, and in B is shown the said. locking mechanism of A in side elevation. Fig. 10 shows Fig. 11 in end view, and Fig. 11 shows Fig. 10 in side view.

Like letters of reference denote like parts throughout.

The object of my invention is to improve the class of liquid-coolers in which the cooled liquid passes through coiled pipes which are held in a refrigerant, and my particular invention relates specifically to the construction of such refrigerating-coils, as hereinafter more fully pointed out and claimed.

To attain said desirable ends, I construct my said improved liquid-cooler in the following manner, namely: I construct the annular heads or ends aof my said device with central hubs Z), whereof the one placed at the bottom is threaded and holds fixedly a central connecting-rod c, whereof the upper and threaded end passes freely through a hub and into a nut d, forming a part of a hand-wheel d. Said annular ends a are provided with central and transversely-semicircular grooves e, on each side of which are grooves f and g to recelve,

Serial1l '0.138,258a (No-model.)

respectively, the tongues h and iof an annular element j, composed of two members j and j which are in the form of transversely-semicircular annular superimposedtroughs, which are united back to back at whereof one part is provided with the tongues i and 2' and the other with grooves k and Z toreceive a setof tongues k and The first complete element jrests on the base a, which receives the tongues in the grooves f and g, and each succeeding element 1' receives the tongues of its superimposed element j in the same way to the last element j of the pile, which has tongues instead of'grooves to its upper member which fit into the grooves f and g of the top head or end, both the upper and lower ends being constructed alike, with the exception of a smoothbored hub for the top and a nipple p at an angle of forty-five degrees entering the channel 6 instead of a connector m vertical or at any other angle to the plane of the channel a at the bottom.

In the drawings it is designed that the liquid shall enter at m at the bottom.

To cause the liquid to travel the entire length of each channel a in every superimposed element j, a dam or stop a is placed on one side of the entrance on, which causes the liquid to flow from the front to the rear of said stop. At the end of said channel there is an opening 0 up into the next channel e and a dam or stop on the opposite side of the entrance 0, which causes the liquid to flow through that channel to the rear of the said stop, and so on in alternately opposite directions through any number of channels 0, which may be as many or few as the case may require, until finally it passes out at the nipp e p.

The entire mechanism is held together by means of the threaded rod 0 and hand-wheel screw d, which when removed leaves each individual element j free to he removed, opened, and cleaned, and as easily reassembled.

The channels 6 can by means of this construction easily be tooled and finished perfectly true, so that any dam a may fit any channel 6, and also all joints may be made so true as to be leak-proof, especially when elastic packing is used, as indicated at '1".

One or more sets of pins or lugs s integral with the male member I pass between lugs t integral with the opposite or female member 3' of an element 1', with a similar element j beneath it, so that the several parts, openings, and dams may be properly connected to perform their functions. The dam or stop n may be fitted removably or held fixedly to its place, the former being more desirable when practicable on account of the easier clearing of the channel 6. In this construction the cooling-channel 6 may be made as long or short as circumstances may require by simply adding or taking away the individual elements j and connecting to the ends, as already shown and described.

What I claim is 1. In a liquid-cooler, the combination of a pair of annular heads, a series of superimposed annular elements between the heads, each consisting of a ring having channels in its upper and lower faces and having its sides following the cross-sectional contour of said channels to form reentrant angles, and means for locking said elements and the heads together.

2. In a liquid-cooler, the combination of a pair of annular heads, a series of superimposed elements each consisting of a ring having channels in its upper and lower faces and 7 having its sides following the cross-sectional contour of said channels to form reentrant angles and having a pair of lugs on its upper edge and a single lug on its lower edge adapted to engage between the lugs on the upper edge of the element on which it is imposed, and means for locking said elements and heads together.

3. In a liquid-cooler, the combination of a pair of annular heads, a series of superimposed rings having channels in their upper and lower faces and their sides following the cross -sectional contour of said channels to form rentrant angles, and provided with openings in their walls forming communications between the adjoining rings, dams within the rings between the openings, and means-for locking all the rings and the heads together.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5000253 *Dec 18, 1989Mar 19, 1991Roy KomarnickiVentilating heat recovery system
Cooperative ClassificationF28D7/024