US1700482A - Heater - Google Patents

Description

' W. BLASEK ET AL HEATE R 4 Sheets-Sheet 2' Filed July 2, 1928 Jan. 29, 1929. 1,700,482

. W. BLASEK ET AL HEATER Filed July 2, 1928 4 Sheets-Sheet 5 OCOOOOOOOOOOO DOOOOOOOCOQQOOOOOOO M M %Z.

W. BLASEK ET AL Jan. 29, 1929.

HEATER Filed July 2, 1928 4 Sheets-Sheet 4 9o MIME/V TORS: 6

KW lANN gm i @r as Patented Jan. 29, 1929.

iii T ED STATES PATENT OFFICE.

WILLIAM iBIJA EK AND JOHN BORISCH, OF CINCINNATI,- OHIO.

-HEATER. I

Application filed. July 2, 1928.

' understood from the following description and claims, and from the drawings, in which Fig. 1' is a front elevation of our improved device.

Fig. 2 is a side elevation of the same.

Fig. 3 is a plan view of the same. I

l is a plan view of the same, with the top thereof removed.

Fig. 5 is a horizontal cross-section of the same, taken on the line 5-5 of Fig. 1.

Fig. (5 is a horizontal cross-section of the same, taken on the line 66 of 1.

Fig. 7 is a cross-section of thesame, taken on the line 77 of Fig. 1.

Fig. 8 is a vertical section of the same, taken on the irregular line 8-8 of Fig. 1, partly broken away.

Fig. 9 is a perspective view of the same, partly broken away.

Fig. 10 is a vertical section of a detail of the same, taken in the plane of the line 10-10 of Fig. 8; and,

Fig. 11 is a vertical section of a detail of the same, taken in the plane-of the line 1111 of Fig. 4.

21 is an upper transverse shell and 22 isa lower transverse shell. The lower wall 23 of the upper transverse shellis provided with a plurality of sets of openings'at the respective sides of said shell, the openings of'said respective sets of openings being designated v 24-, 25, 26, 27. The lower wall of the upright shell is also provided with a central opening 28, and the upper wall 29 of the upper shell is provided with a flue-opening 30, the wall of which is provided with a flange 31 for receiving a flue 32.

The upper wall 35 of the lower shellis provided with a set of openings at each .side of said lower transverse shell, the openings of said respective sets of openings being designated 86, 3?, 38 and 39. It is also provided Serial .No. 289,625.

with a central opening 40. The upper shell .and the lower shell are preferably formed of sheet metal. A set of pipes is located at each side of the heater. The pipes of these respective sets of pipes are preferably of sheet metal and are designated respectively 41, 42, 43, 44. The upper ends of the pipes of these respective sets of pipes communicate with the openings of the respectivesets of openings in the lower wall of the upper shell, and the lower ends of the pipes of these respective sets of pipes communicate with the openings of the respective sets of openings in the upper wall of the lower transverse shell.

The connections between the respective ends of the pipes and said walls are preferably made by providing each of the walls of the openings with a flange 46, by bending the margin of said opening. ends of the pipes are received about these flanges, a washer 47 being received between the end of the pipe and the wall of the shell at said flange. This washer may be a suitable filling to :form a tight oint between the end of the pipe and the shell, and may for instance be an asbestos washer.

A fire-drum 51 is located between the shells and between the pipes. Its upper end communicates with the intermediate opening 28 inthe lower wall of the upper transverse shell, and its lower end communicates with the intermediate opening 40 in the upper wall of the lower transverse she'll. This fire-drum may be in the form of a tube and be composed of a piece of metal pipe,'=for instance, drawn tubing. Themargin of the opening 28 and the mar-gin of the opening 40 are each bent to form a flange55 received within the respective ends of the fire-drum. A suitable filling 56, for instance, in the form of an asbestos washer, is received between each end of the fire-drum and the walls of the respective intermediate openings 28 and 40, for forming close joints between the respective ends of the fire-drum and said walls. i

The upper shell is provided with transverse partitions 61, 62, in which there are openings 63, 64. Dampers 65, 66, are pivoted at said respective openings, for instance,

The respective 75. The arm 71 is shown provided with a handle 76. The dampers are preferably normally positioned at right angles to each other, and are so arranged that when one damper is open, the other damper is closed.

The upper shell preferably also has up right partitions 81, 82, therein extending between the partitions 61, 62, for forming passageways 83, 84, respectively between the up per ends of the pipes 42, 43. The inner portions of the partitions 61, 62, and the partitions 81, 82, form a supporting structure between the upper and lower walls of the upper shell 21 about the upper end of the fire-drum.

The lower shell is provided with an upright partition 86, which forms a median support between the upper and lower walls of the lowor shell about the lowerend of the fire-drum, for acting as a support for the latter and strengthening the structure of the lower shell. The partition 86 has a rear rounded portion 8? under the rear rounded portion of the fire-drum and side walls, which extend forwardly from the rounded portion 87 and connect with the front wall of the lower transverse section. The partition 86 is provided with an upper flange 90 and a lower flange 91, which. are respectively welded to the upper wall and lower wall of the lower transverse shell and the front ends of the side walls thereof, are each provided with a flange 92 which is welded to the front wall of the lower transverse shell, for forming a gastight joint between the partition 86 and the lower shell. This structure forms an ash-pit 93. An ash-drawer 94 is received in the ashpit. The front wall of the ash-drawer is provided with vent openings 95 provided with adjustable shutters. Transverse partitions 96, 97, are located between the side walls of the lower shell and the side walls of the par tition 86.

Connecting rods 98 connect the shells, pipes and lire-drum. They are preferably located outside the fire-drum and between the firedrum and the pipes. They are provided with heads 99 at one of their ends, their other ends being threaded for receiving nuts 100. The heads are shown under the lower wall of the lower shell, and the nuts are shown on the upper wall of the upper shell. In this manner the shell, the pipes and the lire-drum are drawn together and the joints between the same securely closed, for preventing the escape of gas and making the joints air-tight.

A transverse passage 101 is formed in the front portion of the upper shell communicating with the fire-drum, when the damper is open, and with. the upper ends of the pipes 41. The upper ends of the pipes 42 are closed from the upper ends of the pipes 41 by the transverse partition 61. Passageways 104, 105, are formed in the front part of the lower shell between the lower ends of the pipes 41 and the lower ends of the pipes 42, at the respective sides of the lower shell. The upper passageways 83, 84, connect the upper ends of the pipes 42 with the upper ends of the pipes 43.

A transverse channel 107 is formed in the rear portion of the lower shell between the lower ends of the pipes 43 and 44 at both sides of the lower shell, and forming passageways 108, 109, between the lower ends of the pipes 43, 44, at the respective sides of said lower shell, permitting the heat in the products of combustion to spread crosswise of the upper wall of the lower shell and the rear wall and side walls of the same for aiding in exchange of heat. A transverse channel 110 is formed by the transverse partition 62 between the upper ends of the pipes 44 and the flue for escape of the products of combustion. The directions of the products of combustion are indicated by the arrows.

It will thus be seen that the heat from the products of combustion traverses the front portion of the upper shell and descends through the pipes 41 to the front portion of the lower shell, and is then caused to ascend the second pipes 42 of said sets of pipes, then passes rearwardly along the side portions of the upper shell and descends through the third pipes 43, and is then permitted to spread throughoiilt the rear portion of the lower shell,

the products of combustion then ascending the rear pipes 44, and spreading in the rear portion of the upper shell and passing up the flue.

The shells and pipes are preferably constructed of comparatively thin sheet metal and have substantially all their outer surfaces exposed to the atmosphere, so that extreme amount of heat exchange is obtained, and the fire-drum is also preferably constructed out of sheet metal or drawn tubing or metal pipe, so that an extreme amount of exchange of heat takes place between it and the atmosphere, it being noted that the outer surface of the fire-drum is also exposed to the atmosphere.

A top 111, which is preferably shell-like, is arranged to rest upon the upper shell and is provided with a recess 112 for accommodating the flue. It has side walls 113 provided with holes 114 and a slanting upper portion 115 provided with perforations 116 for dif fusion of the heat therein. i

Our improved device is arranged for burning solid fuels, such as coal, wood or the i like, or for burning fluid fuel, whether liquid or gaseous. Thus a grate 121, shown as a round grate, is pivoted on a pivot-bolt 122 in the fire-drum, and is provided with a pivotstem 123 in a bearing 124 in the fire-drum, the pivot-stem having a handle 125 fixed thereto'for tilting the grate. The handle is provided with a pin 126 arranged to be re ceived in respective holes 127, 128', on an arcpiece 129 secured to the drum.

1 ,vooase A fluid fuel burn'er 131 projects through an opening 132 in the drum and is located below the grate, being located preferably in the vertical plane in which the pivotal axis of the grate located. The burner is preferably provided with a suitable air mixer 133 of usual construction, into which a gas burner 13 1 is received, and so constructed as to properly mix the gas and air when the fuel emerges from the burner 131. A usual perforated air-regulating disk 135 may be provided. A. gas-valve 13? may supply a regulated flow of gas or the gas may be shut off entirely. A pilot light is arranged to be projected into the lire-drum by a pilot burner 138 through an opening 139 in the fire-drum, the pilot burner being controlled by a valve 141-0.

When it is desired to burn solid fuel, the handle 125 is moved for registry of its pin 126 with the hole 128 for positioning the grate in horizontal position. If it is desired to burn fluid fuel, the handle 125 is swung to cause its pin126 to register with the hole 12?, in which position the grate is swung into vertical position and across the inner end of the burner 131, for serving as a deflector for the gas and flame fromsaid burner for spreading the flame throughout the crosssectional interior of the fire-drum.

'llhe lire-drum is provided with a suitable fuel mouth 14:1,"arranged to be closed by a hinged door 142. It is also provided with a vent-opening 1 l3 arranged to be closed by a door 144. Runways 1 1-5 are located in the ash-git 93 for receiving the ash-drawer 94-. The front wall of the lower transverse shell 22 is provided with an opening 146 normally closed by the front wall 147 of the ashdrawer.

The upper wall of the upper shell is provided with clean-outopenings 1 51, normally closed by removable closures 152. Each of the clean-out openings preferably extends part-way across the upper ends of a pair of pipes, so that two pipes may be cleaned by suitable brushes or other cleaning devices re ceived through one opening. The lower shell is preferably provided with clean-out openings 155 in the respective side walls thereof, normally closed by removable closures 156. Each of these clean-out openings preferably extends part-way crosswise of the lower ends of a pair of the pipes, so that a pair of pipes is accessible through each of the clean-out openings 155, the cross-passages in the lower shell being also accessible from said openings.

The heating unit described may be sur rounced by a sheet metal jacket in furnace form and the heat delivered through suitable heating pipes to suitable points, and the cold air delivered into the acket in suitable manner. a

W hen starting the fire, or when maximum draftfor the tire is desired, the arm 71 is moved for opening the damper 66 and closing the damper 65, so that the products of combustion pass directly from the fire-drum to the flue, and opening the door 144 and adjusting the shutters to open the vent openings 95. lVhen heat is desired, the arm 71 is swung in the opposite direction for partly or wholly closing the damper 66 and partly or wholly opening the damper 65,the door 144: being closed and the shutters for the vent openings regulated.

The lower shell may rest upon a suitable foot-frame 161 provided with feet 162 for raising the lower shell from the floor and pern'iitting circulation of air thereunder.

1. In a heater, the combination of upper and lower transverse shells, the walls'of said shells which are presented toward each'other provided with openings at the respective sides of'said shells, pipes between said shells in line with said openings, the ends of said pipes connected with said shells at said open lugs for forming passages, partitions in said shells between the ends of said pipes, said partitions in said respective shells at tile respective sides of said shells located between successive pairs said. pipes at opposite ends of said pipes, a lire-drum between said respective sets of shells, and a passage between said lire-drum and the end ones of said pipes.

'2. In a heater, the combination of an upper transverse shell and a lower transverse shell, the inner walls of said transverse shells provided with openings presented toward each other, pipes between. said transverse shells communicating with said openings, said upper transverse shell provided with a flueopening, a lire-drum between said transverse shells, said lire-drum having a communication with said upper transverse shell, dampers in said upper transverse shell between said lire-drum and said pipes and between said lire-drum and said flue-opening respectively, partitions in said lower transverse shell between pairs of said pipes, partitions in said upper transverse shell, pairs of said pipes opening into said upper transverse shell between said last-named partitions, and a damper in said communication.

3. In a heater, the combination of an upper transverse shell, a lower transverse shell, the lower wall of said upper transverse shell and the upper wall of said lower transverse shell each provided with a set of openings at each side of said shells, a setof pipes between said shells at each side'of said shells communicating with said respective sets of openings, said lower wall provided with an intermediate opening, a tire-drum between said shells and between said pipes communieating with said intermediate opening, said upper shell provided with a flue-opening, a amper in said upper shell between said firedrum and said flue-opening, a damper in said upper shell at the opposite side of said firedrum, for controlling the passage of products of combustion from said lire-drum to said pipes, partitions in said upper shell between the end ones and the intermediate ones of the pipes of said respective sets of pipes, and partitions in said lower shell between said intermediate ones of the pipes of said respective sets of pipes.

4. In a heater, the combination of an upper transverse shell, a lower transverse shell, the lower wall of said upper transverse shell and the upper wall of said lower transverse shell each provided with a set oi openings at each side of said shells, a set of pipes between said shells at each side of said shells communicat ing with said respective sets of openings, said lower wall provided with. an intermediate opening, a fire-drum between said shells and between said pipes communicating with said intermediate opening, said upper shell provided with a flue-opening, a damper in said upper shell between said lire-drum and said flue-opening, a damper in said upper shell at the opposite side of said fire-drum, for controlling the passage of products of combustion from said fire-drum to said pipes, partitions in said upper shell between the end ones and the intermediate ones of the pipes of said respective sets of pipes, partitions in said lower shell between said intermediate ones of the pipes of said respective sets of pipes, the upper wall oi? said upper shell provided with clean-out openings in line with said respective pipes, and releasable closures for said respective clean-out openings.

5. In a heater, the combination of an upper transverse shell, a lower transverse shell, the lower wall oi said upper transverse shell and the upper wall of said lower transverse shell each provided with a seat of openings at each side of said shells, a set of pipes between said shells at each side of said shells communicatling with said respective sets of openings, said of said respective sets of pipes, partitions in said lower shell between said intermediate ones of the pipes of said respective sets of pipes, said lower shell provided with cleanout openings at the respective sides of said partitions in said lower shell, and releasable closures in said clean-out openings.

6. In a heater, the combination of an upper transverse shell and a lower transverse shell, the lower wall of said upper transverse shell and the upper wall of said lower transverse shell each provided with a set of openings at each side of said shells, said lower wall of said upper transverse shell provided with a central opening between said sets of openings, said upper transverse shell provided with a flue-opening at its rear, transverse partitions in said upper transverse shell. between said central opening and the end ones oi? the openings of said sets oi": openings and said flue-opening respectively, a damper in each of said partitions, connecting means between said dampers causing combined movements of said dampers for respective opening and closing of said dampers, transverse partitions in said lower shell between the intermediate ones of said openings or said sets of openings, a fire-drum between said transverse shells opening into said central opening, and upright pipes outside said fire-drum between said transverse shells communicating with the respective openings of said respective sets of openings.

In testimony whereof, we have hereunto signed our names.

WILLIAM BLASEK. JOHN BORISCH.

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