US1860125A - Heat transfer apparatus - Google Patents

Description

May 24, 1932. I E.` M. BAssLER 1,860,125

` HEAT TRANSFER APPARATUS v Filedl'Aug. 2, 1930 2 sheets-sheet 1 2 Sheets--Sheet 2 Filed Aug. 2. v1930 Vas Patented May 24, 1932 EDWIN M. BAssLEn, oF cH'IcAeo, TLLINo-Ts,

ASSIGNOR TO vD. J'. MRRAY MNUFCTUB- ING COMPANY, OF WAUSAU, WISCONSIN, A CORPORATION OF WISCONSIN HEAT TRANSFER APPARATUS Application ifiled. August ,2,

This invention relates to heat transfer apparatus, and relates particularly to such apparatus comprising a hollow header, supply and return-manifolds connected toopposite ends thereof, adapted for supplying ,a thermal agent to said header, and a fan mounted in association with said apparatus for directing aacurrent of air over Vor through said header. i

A particular object ofthe invention is to provide improved and simplified means for mountingr and supporting the apparatus, whereby the bottom manifold will sustziin the' entire weight thereof, thus relieving its parts, other than the bottom manifold, and particularly the oints connecting the manifolds'with the header from all stresses due to the weight of the apparatus-rendering it possible to use relatively light and inexpensive fittings.

Further objects of the invention are to provide a fitting of new and novel construction lfor connecting the manifolds with the header or headers of the apparatus, whichwill'be simple in construction, lstrong and to manufacture and install; which can be effectively sealed to provide duid-tight joints between the manifolds and header or headers; Which will reduce the number of screw joints necessary for connecting the manifolds with the headeror headers; and which'will reduce the over-all dimensions of the apparatusbe-l tween the remote sides of the manifolds to a minimum.

To effect the various objects of the invention, my improved heat transfer apparatus comprises the various features, combinations of features and details of construction hereinafter described and claimed. i

In the accompanying drawings in which the invention is fully illustrated,

Fig. 1 is a side view of heat transfer ap,-

paratus embodying my invention and improvements.

Fig. 2 is an enlarged sectional View of heat transfer apparatus embodying my invention and improvements, the headers and a portion of the lower manifold being shown in elevation.

Fig. 3 is a detached top plan view, partly durable; which will be relatively inexpensive 1930. Serial N0. 472,533.

in section, of the top manifold of the appal ratus. f

Fig. 4 is a bottom plan view of the bottom manifold; and f Fig. 5 is a fragmentary `sectional detail view on an enlargedscale, substantially on the line 5-5 of Fig. 3, showing one of the )oints connecting the manifolds with' the Describing'the invention with reference to ,the drawings, my improved heat transfer a'ppa-ratus, designated as a whole A, comprises one or more, as shown three, hollow headers a, supply and return manifolds al a2 connected to the tops and bottoms of said headers, re-

spectively, and adapted to supply a circulation of steam,`brine, ammonia or other thermal agent to said headers, and as designates vthe motor of a fan forming partof the apparatus and adapted for discharging a current of air over or through the headers a.

As regards their usual features and excepting as hereinafter particularly described and pointed out, all of the above and foregoing devices may be of any usual or approved construction and will be 'readily understood by persons familiar with the art from an examination of the drawings, without-a description thereof in detail.

As shown, theheaders a, see particularly Fig. 5, are of a type comprising a hollow core 1 made of suitable cast metal, preferably cast iron, and a shell E2 of another metal, desirably an aluminum alloy, formed integral `with which are outwardly projecting spaced tins A header of the general type specivfied is shown, described and claimed in an application for U. SL'Letters Patent therefor, heretofore filed by me on or about October Q1, 1929, Serial No. 401,321, to which reference is here made for a description thereof in detail.

.ln accordance with my invention, see particularly Fig. 5, the manifolds afa? are connected to the headers a by hollow fittings l, which entend through holes formed in the adjacent'walls of said manifolds. an end of cach of which has screw threaded engagement with a hole formed in anend of a header a and formed on the'opposite end of which is a head 5, the shoulder at the underside of l opposed' surfaces of said headers and manifolds.

` Thewashers 8 may be made of different materials depending upon the use to which the apparatus is to be put. v Thus,'copper gaskets will preferably be used in connection with steam or hot water circulation, while steel or lead gaskets will be used with ammonia, brine, ete. f

A particular advantagearising from the use of the sleeve fittings 4 Ifor connecting the manifolds to the headers is that each joint yhas ybut one threaded connection, thus practically reducing the number of screw-threaded connections by more than one-half, as compared with the use of usuallconnections heretofore commonly used` inmaking such connections.v f

A further advantage` arising from the use of my improved sleeve fittings is that by its use, the over-all dimension of the apparatus between the remote sides of the headers a1 a2 is reduced to a minimum, the surfaces of the parts connected thereby resting directly in contact with each other.

To attain the object ofthe invention as it relates to mounting the apparatus, said apparatus is supported by mea-iis of rods 9 which extend through holes formed in opposite ends of the bottom manifold a2 formed on which are heads or abutments 10 upon which said manifold rests andis supported. Said rods 9 also extend through holes formed iii the ends of the top manifold to which they are fitted so as to be freely movable and thus support the apparatus in stable operative position. .The rods 9 may either besuspension rods, their upper ends being attached to a suitable support, not shown, or, if desired, the lower ends of said rods maybe secured in a suitable base or foundation. 1

iVith the described construction, it is ob vious that the weight of the entire apparatus will be sustained by the rods 9 and that thesleeve fittings 4 which connect the manifolds al a2 to the headers a will be relieved lfrom all stress and duty due to the Weight machine work on said fittings will be great- 1y reduced, thus further reducing the cost thereof.

To provide for conveniently and economically forming the holes in the headers a to. Areceive the said hollow fittings 4, holes 11 are formed in said headers diainetrically opposite to and in line with the holes formed therein which receive said fittings 4. Said holes 11 are made sufficiently large to permit the passage therethrough of the heads vof the fittings 4 and, after the headers a and 'manifolds a1 a2 have been assembled, kwill be closed by means of screw-plugs 12, or the like.

As shown, the supply and return connections 13 and`14 to the top and bottom manifolds a1 a2, respectively, consist of iiange unions 15 which are old and well-known and will be readily understood by persons familiar with the art from an examination of the` drawings without a description thereof in detail. .Said supply and return connections are sealed by means of suitable gaskets 16, in a usual manner.

In operation, a current of air is adapted to be discharged over or through the headers a by means of the fan a3. In order that the apparatus may form a self-contained unit, the fan motor a3 is preferably mounted at the upper end of a bracket arm 17 Which, as shown, is detachably secured to the bottom manifold a2, said bracket arm being angular in shape and proportioned to support the fan with its axis substantially in line with the center line of the header or group of headers a.

Aflsofi'n accordance with usual practice, the vheaders a are enclosed in a suitable sheet metal casing, designated as a whole b, the fan 18 being` positioned in a hole formed in the rear wall of said casing, and the lfront of the casing consisting of adjustable louvers 19 by which the air current may be regulated and controlled, as may be desired.

I claim:

and return manifolds, a plurality of tubular radiator elements connecting said manifolds,

leach of said tubular elements being a coinpound structure comprising a hollow casting having integral radiating fins and a separate conduit around which said casting is formed, said conduit being internally threaded at its ends, and hollow headed fittings having threaded engagement with said conduit and bearing on said manifolds.

In witness that I claim the foregoing asl my invention, I atiix my signature this 28th day of July, 1930.

- EDWIN VM. BASSLER.

ofthe apparatus, whereby it is possible to ed connections, as heretofore described, the

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