US2401151A

US2401151A - Water heater

Info

Publication number: US2401151A
Application number: US497893A
Authority: US
Inventors: Alfred H Haberstump
Original assignee: Murray Corp
Current assignee: Murray Corp
Priority date: 1943-08-09
Filing date: 1943-08-09
Publication date: 1946-05-28
Anticipated expiration: 1963-05-28

Description

May 28, 1946. A' A. H. HABERs'ruMP 1 2,401,151-

' WATER HEATER l Filed Aug. 9, 1943 2 Sheets-Sheet l l l] l l l' 59%., fami...

JNVETOR.

Patented May 28, 1946 UNITED STAT ES` PATENT QfFFlC E WATER HEATER. Alfred H: Haber-stump, Detroit,` Mich., assigner' to' The Murray Corporationv of America,V Detroit;

Mich., a corporation of Delaware Application August 9, 1943, Serial No. 497,893`

16` Claims.

This invention relates to water heaters and particularly to a water heater ofthe insulated type of variablecapacity and wherein a convection flow of water is produced.

The tank is made of a plurality of stampings, the height of which may vary to change the tank capacity. The stampings are made in a single set of dies and by trimming the open end before assembly to various heights the desired capacity is obtained. A gas, coal, oil, or other type of fuel Iburning equipment is disposed in the bottom of the insulating cover directly below the bottom of the tank. A ue, having a plurality of passageways, extends through the tank and the top of the outer cover. The nue extends below the bottcm of the tank tov prevent the products of coinbustion from iiowing directly thereinto. A baille may be disposed near the bottom of the tank, sloping from the front .directly over the burner upwardly to the back and having a sleeve con-` nectedthereto and disposed about the flue to'produce a more rapid convection movement oi the water. This produces rapid heating and delivering of the water to the top portion of the tank to which the outlet pipe is attached.

Accordingly, the main objects of this invention are: to form a hot water heater from a, tank and an outer casing between which insulating material is` disposed and an additional inner case .below` the tank spaced from the outer casing to form insulating receiving` space therebelow; to form a tank and outer casing from pot-like stampings, the depth of which may be adjusted so that when combined the capacity of the resulting tank may be varied; toy provide a nue through the bottom and top of the tank, having a plurality of passageways to increase the contact surface with the water; to provide a tank having an arcuate bottom portion disposed normal tothe iiue which extends therebelow to prevent the products of combustion from moving directly thereinto; to provide a baiile sloping from a, point directly over the burner to the rear about the ue in communication with a sleeve encompassing the flue and secured to the baliie for directing the heated Water from the burner toward theflue and upwardly thereabout to the top of the tank; and, in general, to provide a tank and method of construction which produces tanks of variouscapacities from a single set of dies-and which is economical of manufacture and use.

Other objects and features of this invention will be either specifically pointed out or-will become apparent when referring, for a better understanding of the invention, to the following description takenV in conjunction `with the: accompallying drawings, wherein:

Figure 1 is a sectional view ofawaterheater embodying features of this invention;

Fig. 2 is a sectionalviewoi the structure `illustrated in Fig. 1, taken on the line-Z-Z thereof;

Fig. Bis a sectional view 'of `structure illustrated iii-Fig. 1, taken on the line 3-3 thereof;`

K Fig.` 4 is a broken View of structure,v similar vto that illustrated in Fig. 1, showing a further form which the invention may assume;

Fig. 5 isa sectional view of structure illustrated in Fig. 4, taken' on the liney 5--5- thereof; andA l Fig. 6 isan enlarged broken sectional viewlof stamping I2 and abottom stamping I3 of heavier l gauge material than the stamping I2.` These.`

structure similar to that illustrated in Fig.l 4, showing. a modified formvoi the invention.

Referring to Figures 1. to 3, inclusive, thewa ter heater embodies a tank ID made from a top stampings are pot-shapedand provided at; their peripheral `edge with an outwardly directed ange` I4 which abuts each other and are weldedV together. It will be. noted` from Fig. 1 that the stamping I3 may have-the portion I5 cut 01T at I6 `and Vflanged outwardly so as to reduce:` the capacity of the resultingv tank by-the areaI disposed betweenlthelines I4 and |65 Thismay reduce a tankhav-ing a GO-gallon capacity to one having a 50 gallon capacity.

Similarly, stamping I2 may` be trimmedat the line I-'I and flanged thereat'and,` abutted against the ilange I4, or the one at the'point I6. `This will further reduce the capacity of the tankby the area between the` lines I4 and I1,` orbetween the lines I'I and I 6. This mightreduce a tank having a gallon. capacity tank ,toa 40 gallon capacity tank, or to a 30 gallon capacity. It will thusbe seen` thatw by` varying thelshearing operation on thelopen end of the stampings I2 and I3, .that a` large variation of capacities may be obtained for the resulting tank. This isimportant as the trade demands such variation in capacity. and` applicant avoids the necessity of providing a-plurality ofY die setsone for each capacity,` by the presentarrangement. This em- `bodies a single die set which produces like stampofV the stampingY I2; having a` threaded collar 22` welded,` swaged, or otherwise secured thereto. A plurality of elbows 23 connect the outletlopening 2l to the conduit 24 -at the top side portie-noi the water heater. Aligned, elongated flanged openings 25 are provided in the top and bottom of the stampings I2 and I3, through which the smoke flue 2S extends. The end portions 21 are elongated in shape to mate with the flange in the openings 25 and to be sealed thereto as by welding.

The intermediate portion 2% between the elongated ends 21 are formed into a plurality of tubes 29 joined by webs 3l which are disposed therebetween. The webs SI are the opposite side portions of the flue which have been moved into abutting relation. The bottom elongated portion 21 of the stack extends some distance below the bottom of the stamping I3 so as to provide an area 33 in which the products of combustion are trapped and prevented from moving directly into the ilue. This area 33 is formed by arching the bottom of the tank at 34, as illustrated in Figs. l and 2. A water inlet opening, similar to the outlet opening 22, is provided in the side wall of the tank near the bottom thereof, as at 35.

A pair of

similar stampings

31 and 38 struck from the same die are employed to form the outside wrapper about the entire tank assembly including the combustion chamber 3S. This chamber is formed by apot-like stamping 4I, which extends` over the wall of the stamping I3 and is provided with an outwardly directed flange 42 which mates with and is welded to the flange at the abutted ends I6 of the stampings I2 and I3. VThe

stampings

31 and 38 are provided with outwardly directed flanges 34 which are encompassed by an inwardly directed channel-shaped band 45 which has its ends flanged outwardly at et and secured together by suitable means, herein illustrated as by a bolt e1. The upper tank stamping I2 is spaced from the outer top stamping 31, while the stamping 4I is spaced. from the outer bottom stamping 38. Depending upon the capacity of the tank, the length of the stampings 31 and 3S are varied to conform to the tank capacity.

An insulating material 48 is disposed between the spaced walls of the tank and stamping il and the

outer stampings

31 and 38 to insulate the tank as well as the combustion chamber. A collar 5I extends through the wall of the stampings 38 and "Il to provide a passageway through which a burner 52 `may be inserted or removed from the combustion chamber 39. Suitable supporting

elements

53 and 54 maintain the burner in predetermined relationship to the bottom portion of theftank. A suitable conduit55 delivers gas to the burner herein illustrated, for heating the water. It is to be understood that the combustion chamber 39 could be constructed to burn coal, oil or other fuels when substituted for gas for heating the water.

It will be noted that the elbows 23, which form the top portion of the outlet conduit, are enclosed by the upper stamping 31 and that the outlet pipe 24 extends through a small aperture in the wall of the stamping. A similar inlet pipeextends through 'an aperture in the wall of the stamping 38 in communication with the inlet opening 35. The stamping 38 is provided with a number 4of apertures 51 through which the legs 58 extend for supporting the hot water unit.

' Tabs 59 are struck outwardly when forming the apertures having a` hole therein through which a screw `6I extends to secure the tab to the leg. The upper part of the legs are ilanged at E2 and are welded to the bottom surface of ythe stamping 4I. On the structure as herein illustrated, three legs Stare provided for supporting the entire water heating unit. It is to be understood that any number of legs may be utilized and attached to the bottom of the stampings, as herein illustrated.

In Figs. 4 and 5, a further form of the invention is illustrated, that wherein a baille 66 is supported by legs ,51 on the bottom of the stamping I3. The baille slopes from the water inlet and burner toward the flue 28. The water delivered between the baille and tank bottom will be heated and will move by convention toward the flue. About the ilue an elongated sleeve 68 is disposed in spaced relation thereto. The water moving upwardly under the baille E6 will continue such upward movement within the sleeve 68 whilein intimate Contact with the flue surface. The sleeve 68 terminates vnear the top of the tank so that a small quantity of water will be immediately heated to a high temperature and delivered to the top outlet portion of the tank when the burner is ignited. This eliminates the necessity of heating all of the water of the tank to a desired degree before any portion thereof ycan be withdrawn at a desired temperature. Otherwise, the structure described in relation to Figs. 4 and 5 is similar to that illustrated in Figs. l to 3.

In Fig. 6, an enlarged section of a tank discloses that the tank and flue are made of stainless-clad steel sheets with the stainless surface disposed toward the tank interior. The stainless surface 12 on the stampings Ill and I3 is disposed on the inside of the tank, which is also true of the stainless surface 13 on the flue 28. When the abutted flanges of the stampings I0 and I3 are welded together, the stainless material will seal the joint 14 on the tank interior so that it will have a continuous stainless surface. Similarly, the joint 15 Welded between the nue 23 and the flange at the slot in the tank bottom and top will'be filled with the stainless steel material and a continuous surface of stainless steel will be present on the flue as Well as the joints thereof with the tank. In other words, the entire tank interior will be of stainless steel while the outer, heavier body material of the tank will be of a cheaper and more workable steel.

What is claimed is:

1. In a water heater, a cylindrical tank, a cylindrical pot-shaped element telescoped over and secured to the bottom portion of said tank with the bottoms of the element and tank in spaced relation to form a combustion chamber, and a casing encompassing said tank and element.

2. In a Water heater, a cylindrical tank, a cylindrical pot-shaped element telescoped over and se cured to the bottom portion ofsaid tank with the bottoms of the element and tank in spaced rela tion Vto form a combustion chamber, a casing encompassing said tank and element and spaced therefrom, and insulating material disposed in said space.

3. In a water heater, a cylindrical tank, a cylindrical pot-shaped element telescoped over and secured to the bottom portion of said tank with the bottoms of the element and tank in spaced relation to form a combustion chamber, a casing encompassing said tank and element and spaced therefrom, insulating material disposed in said spacefand legs secured to the bottom of said tank and extending through the casing.

4. Ina water heater, a cylindrical tank, a cylindrical pot-shaped element telescoped over and secured to the bottom portion of said tank with ,the bottoms of the elementvand tank in spaced l-indrical. pot-shaped element telescopedY over. andV securedtowthe bott-om portionof said tankwith the bottoms of .the elementand tank'in spaced` relation,v a casing made of 'two like cylindrical pot-shaped stampings: having their open ends hanged outwardly and` encompassing said tank and element, anda channel-shaped band extending over said flangesfor joining the adjacent. open, ends of the stampings together.

7. In a water heater, a cylindrical tank, a cylindrical pot-shaped` element telescoped over and secured to the bottom .portion of said tank with the bottoms of the element and tank in spaced relation, a casing made of two like cylindrical pot-shaped stampings having their open ends iianged' outwardly and encompassing said. tank and element, a channel-shaped band extending over said. anges for joining the adjacent open ends of the stampings together, said stampings being disposed in spaced relation to said tank and element, and insulating material disposed in sai space.

8. In a water heater, a tank made from two pot-shaped stampings which are joined together at their open ends, said tank having aligned elon* gated hanged slots in its top and bottom, a flue comprising a plurality of circular passagevvays with flanges therebetween terminating at the ends in elongated openings which extend through the hanged slots in the bottom and top of the tank and are sealed ntherewith, and a. casing disposed over said tank through which the top portion of the flue extends, and insulating material disposed between said tank and casing.

9. In a hot water heater, a tank made from pot-like stampings of stainless-clad steel with the stainless surface on the inside, the open ends of the stampings being flanged outwardly and secured together by Welding with the stainless steel surface on the inside of the tank maintained continuous, a flue made of stainless-clad steel with the stainless surface on the outside extending through the bottom and top of said tank and secured thereto with the stainless surface` continuo-us with that of the inside of the tank, a pot-shaped element secured to the bottom portion of said tank with the bottoms of the element and tank in spaced relation to form a combustion chamber, a casing made of two like pot- 'shaped stampings extending over the bottom and top of the tank and element, and means for joinin the open ends of the casing stampings together. i

l0. In` a hot water heater, a tank made from pot-like stampings of stainless-clad steel with the stainless surface on the inside, the open ends of the stampings being flanged outwardly and secured together by welding with the stainless steel surface on the inside of the tank maintained continuous, a flue made of stainless-clad Steel with the stainless surface on the outside extending through the bottom and top of said tank and secured thereto with the stainless surface continuous with that ofthe reindeer the:` tank, a pot-shaped element secured to the .bot-

y tom portion of said tank With the bottomsof the element and tank in-spaced relation to. form; a combustion chamber, a casing made of two ilike pot-shaped stampings extending over the bot` tom andtop of the tank andr element, means forv joining the open ends of the casing--stampings together, and insulating material disposed: between said` outer casing-and the tankand element.

11. In a hotwater heater, a tank made of potshaped stampings joined together at their open ends with the bottom of one of the. stampingsforming an arcuate dome at-.the top ofthe tank and with the bottom of the other stamping formed as an arch-extending from one side to` the other of the tankail'ue extending through the top and bottom of the tank with the bottom portion of the nue projecting to the bottom of the arch to prevent the products otcombustion from passing directlytherein, the upper portion of said ilue extending above the dome, apotshaped element securedto the bottom portion of the tank with the bottom of the tank andlele` ment in spacedv relation to form a combustion chambergand pot-like stampings extending over` the top and bottom of the tank and element and secured together at their open ends.

12. In a hotlwater heater, a tank made of `potshaped stampings joined together at their openends with the bottom of one of the stampings forming an arcuate dome at the top of the tank and with the bottom of the other stamping formed as an arch extending from one side to the other of the tank, a iiue extending through the top and bottom of the tank with the bottom portion of the ilue projecting to the bottom of the arch to prevent the products of combustion from passing directly therein, the upper portion of said flue extending above the dome, a potshaped element secured to the bottom portion of the tank with` the bottom of the tank and element in spaced relation to form a combustion chamber, and pot-like stampings extending over the top and bottom of thetank and element and secured together at their open ends, said casing at the top having an opening through which the upper portion of the flue extends.

13. In a hot Water heater, a tank made of potshaped stampings joined together at their open ends with the bottom of one of the stampings forming an arcuate dome at the top of the tank and with the bottom of the other stamping formed as an arch extending from one side to the other of the tank, a ue extending through the top and bottom of the tank with the bottom portion of the flue projecting to the bottom of the arch to prevent the products of combustion from passing directly therein, the upper portion of said flue extending above the dome, a potshaped element secured to the bottom portion of the tank with the bottom of the tank and element in spaced relation to form a combustion chamber, pot-like stampings extending over the top and bottom of the tank and element and .se-f cured together at their open ends, said casing at the top having an opening through which the upper portion of the flue extends, and legs secured to the bottom of said element which extend through said casing.

14. In a hot water heater, a tank made of potshaped stampings joined together at their open ends with the bottom of one of the stampings forming an arcuate dome at the top of the tank and with the bottomk of the other stamping formed as an arch extending from one sider to the other of the tank, a flue extending through the top and bottom of the tank with the bottom portion of the nue projecting to the bottom of the arch to prevent the products of combustion from passing directly therein, the upper portion of said iiue extending above the dome, a pot-shaped element secured to the bottom portion of the tank with the bottom of the tank and element in spaced relation to form a combustion chamber, pot-like stampings extending over the top and bottom of the tank and element and secured together at their open ends, said casing at the top having an opening through which the upper portion of the flue extendsflegs secured to the bottom of said element which extend through said casing, and a collar extending through the casing and element to form an opening through which the fuel is conducted to the combustion chamber.

15. Ina hot Water heater, a tank made of potshaped Stampings joined together at their open ends with the bottom of one of the stampngs forming an arcuate dome at the top of the tank and with the bottom of the other stamping formed as an arch extending from one side t the other of the tank, a nue extending through the top and bottom of the tank with the bottom portion of the flue projecting to the bottom of the arch to-prevent the products of combustion from passing directly therein, the upper portionV of said flue extending above the dome, a pot-shaped element `secured. to the bottom portion of the tank with the bottom of the tank and element in spaced relation to form a combustion chamber, pot-like 'stampings extending over the top and bottom of the tank andelement and secured together at their open ends, said casing at the top having an opening through which the upper portion of the nue extends, legs secured to the bottom of said element which extend through said casing, a collar extending through the casing and element to form an opening through which the fuel is conducted to the combustion chamber, Va gas burner supported Within said chamber radjacent to said archway remote from said flue, a collar extending through said casing and element forming an opening through which the burner is insertable, and a conduit extending through said opening to said burner.

16. In a hot water heater, an insulated tank, a flue extending through the top and bottom of said tank away from the center thereof, a baffle above the tank bottom sloping upwardly toward said flue, a sleeve about said ue joined to said baite, and a burner beneath the bottom of said tank opposite to said ue under the lower portion of said baiiie.

ALFRED H. HABERSTUMP.