US1352676A

US1352676A - Heater

Info

Publication number: US1352676A
Application number: US254869A
Authority: US
Inventors: Charles A Moore
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-09-19
Filing date: 1918-09-19
Publication date: 1920-09-14
Anticipated expiration: 1937-09-14

Description

c. A. M-OORE.

' I APPLICATION F Ii EL S E FT- I9, 1918.- '1,352,676 Patented Sept. 14, 1920.

3 SHEETS-SHEET I- C. A. MOORE.-

HEATER.

APPLICATION FILED SEPT. 19, I918- Patentd Sept. 14, 1920.

3 SHEETS-SHEET 2.

H i9 fnum'Jor Yes a/ffaore fliornex C. A. MOORE.

' HEATER.

APPLICATION map SEPT. 19, 1918 1,352,676. f PatentedSept. 14, 1920.

' I v 3 SHEETSSHEET a.

UNITED STATES PFAT'ENTIOFFFVI CHARLES A. MOORE, OF STQPAUL, lltIIIil'll'IESOTA.

HEATER.

Specification of Letters Patent. Patented Sept. 14, 1920.

Application filed September 19,1918. Serial No. 254,869.

which is adapted for use in preserving andripening bananas and for other purposes. The primary object of this invention as to provide a heater, which will maintain the propentemperature in banana rooms for carrying out the process of curlng and ri ening bananas. a

ith these and other ob'ects in v1ew my invention comprises the eatures of con- "struction and combination of parts herein after more particularly described In the accompanying drawings forming part of this specification, Figure 1 is a vertical section of my invention taken on the upper and lower ends.

line X-X of Fig. 2 ;.Fig. 2 is a vertical section taken on the line Y-Y of Fig. 1; Fig. 3 is a cross section taken on the line Z--Z of Fig. 1; Fig. 4 is a typical section of. a

banana room showin my improved heater therein and the circ ation of air produced by said heater, and Figs. 5 and 6 arejsections of details of alternative constructions of my'invention. y

In the drawn: let A indicate an outer casing in which is arranged a pair of vertical ducts. or

pipes

2 and 3, the upper'portions of which are respectively surrounded by

heating drums

4 and 5, the'drum 4 being closed at its upper end and open at its lower end, and the drum 5 bein closed at both its he wall 6 which closes the lower end of the drum 5 forms a 'horizontal partition across the entire outer casing A and rests upon the ledge or shoulder 7, which is mounted upon the lower section 8 of the wall for-min the outer casing A. The upper section 9 o the wall forming the outer casing A is secured to the partition. 6 and is also supported uponthe ledge 7. The duct 3 .is secured to the partition 6 and its lower end depends downwardly and terminates near the lower portion of the chamber formed by the ouiier casing A.

Immediatel below the closed lower end of the duct 2 1s a burner B, which is mounted upon the stand 10, the lowerend of said stand resting upon the floor 11 of the lower portion of the outer casin This burner which may be of any suita le form generates heat which is adapted to warm air in the lower end of the duct 2, the heated air rising through the space intervening be-' tween the wall of the duct 2 and the wall 4 of the drum surrounding the same. The lower end of the duct 2 is provided with three

branches

11, 12 and 13, the branch 11" leading through the wall of the casing A and being. adapted to admit outside fresh alr which passes upwardly through the duct 2 and is heated b the walls of the latter. The outer end 0 the branch 12 extends through the wall of the outer casing but is closed. The branch 13 also extends through" the outer wall of the casing and is closed by the removable stopper 14 which provides access -to the interior of duct 2. Theupper end of the duct 2 opens into the space above the heater and is provided with a damper 15, by which the amount of heated air passin upwardly through the duct is regulate The drums-4 and 5are connected at their upper ends by the passage 16 and the median portion of the duct 3 inside the drum 5 Y is perforated at 17, whereby heated air and products of combustion rising from the burner B are adapted to pass upwardly through the drum 4, thence through the passage 16 and down throughthe drum 5 and through the perforations 17 intothe duct 3 from whence they ariseupw-ardly and are adapted to pass to the outer atmosphere. The upper end of the duct 3 is provided with a damper 18' which regulatesor checks the current of air and gases rising through the duct 3. The lower portion or section of the casing A has its vertical walls'provided with a pair of oppositely disposed

openings

19 and 20, which are covered by guards21 of reticulated material, and through which vitiated air is adapted .to pass freely into the lower end of the duct 3 and to'the burner B." The amount of vitiated air entering the duct 3 mayalso be regulated by turping the I damper 22.

The

heating drums

4 and 5 are'spaced inwardly from the wall of the outer casing A, the intervening space forming a vaporizing chamber and 3 adapted to-contain water or other liquid for that purpose, which is heated b the walls of the

drums

4 and 5. .An over ow pipe 23 mounted in the support 22 carried by the outer casing A and in the partition 6 passes downwardly and the burner B, said pan being filled with liquid by the pipe 26 passing through the end of the branch 12 and connected with the lower end of the water chamber within the outer casing A, said pipe containing a valve 27, which is adapted to open, close or regulate the passagetherethrough. A suitable drain 28 extending down from the water chamber has its lower end terminating above the overflow pan 24:, but is closed by the valve 29.

In use my improved heater is placed in the room containingbananas to be ripened,

- which for illustration is represented by C in Fig. 4, the bananas being hungin this room for preserving, curing and ripening. Preferably although not necessarily a wall 30 is constructed acrossan end of said room to produce compartment E and provided with an air inlet 31 into compartment E for vitiated air ofreduced temperature near its lower portion and aduct 32 for moist warm fresh air near its upper end entering the room C from above the heater. My improved heater D as. above described is placed in the chamber E and a pipe 33 connected with the opening 11 extends from the heater through the outside wall of the room and admits fresh air from the outside into the heater. This fresh air passes upwardly through the duct-2 and enters the'top portion of the heater chamber adjacent the outlet 32, so that the pure air, which is heated is admitted into and circulates throughout the upper portion of the room. The smoke and gases from the burner B are conducted from the heater after passing through the heating drums Land 5 to the outer atmosphere through. the smoke pipe 35, which is connected with the upper end of the duct 3 and passed outwardly from the banana room. The cold vitiated air from the room is drawn outwardly through the opening heater together with the temperature of the of humidity in the air, water is admitted by opening the valve 27 into the pan 25. By the use of my improved heater the temperature and humidity of the air in the banana room can be maintained, so as to most effectively preserveycure and ripen bananas contained in the room.

In the alternative construction shown in Fig. 5, the heater element is in the form of a steam coil 37, placed above the floor in the vertical duct or compartment 2 and is adapted to be used for heating the air which passes upwardly from the outer atmosphere through duct 2; The vitiated cold air in this construction is drawn into the chamber within the outer casing A through the screened openings 19 and 20'and conducted to the outer atmosphere through the exit duct 3, and is also conducted from the floor upwardly through duct 3 alone. In Fig. 6 the heating element 38 is electrically operated in the same manner as the steam heating element, that is the circulation of humid air and of vitiated air and gases is substantially the same.

. In accordance with the patent statutes, I have described the principles of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative, and that the invention can ing, in combination, an outer casing open at its upper and lower ends and having a transverse partition forming upper and lower compartments, upright ducts extendin'g above and below said partition, the first being open at itsupper and closed at its lower ends and the second open at its upper and lower ends, a burner arranged to heat the lower closed end of said first duct, heating drums surrounding said ducts and connected at their upper ends, the first drum adjacent to said burner being open to admit draft from said burner, and said second duct being perforated to admit draft from the lower portion of the second drum into said second duct, said drums being spaced from the inner wall of said outer casing to form a vaporizing water compartment above said partition, an overflow passage leading downwardly from the upper portion of said water compartment into the .lower portion of the space within said casing, a pan below the lower end of said overflow passage, an evaporating water pan in the lower portion of. said first duct immediately above said burner, valved means for admitting liquid from said water compartment into one of sald pans, and dampers 1n said ducts; whereby outside fresh air is warmed and moistened and passed upwardly into the space above said first duct outside said heater, vitiate'd air is admitted into said first drum and with the smoke and gases passed through said second drum and duct to the outer atmosphere, and air passing over said water compartment is additionally moistened. I I

2. In combination with a banana room having a heater compartment formed with passages in its upper and lower portions entering said room for the circulation of air, a heater in said compartment, comprising, an outer casing open at its upper and lower ends and having a horizontal partition separating the space in said casing into a water compartment in i upper portion and an air receiving chamber in its lower portion, upright ducts extending above and below the water space in said casing, the upper end of the first of said ducts extending upwardly and opening into the upper portion of said heater chamber and its lower end admitting fresh air from the exterior of said heating chamber and room, a burner arranged below the lower end of said first duct to heat the ,walls thereof, heating drums surrounding said ducts and connected at their upper ends, said second duct being perforated to admit draft passing from said burner upwardly and then downwardly through said drums and into said second duct, said second duct passing upwardly to the exterior of said room to expel smoke and gases to the outer atmosphere, said burner being adapted to draw vitiated air-from said room and expel the same with said smoke and gases to theouter atmosphere, the water in said water compartment being heated by the walls of said drums and the vapor arising therefrom being conducted upwardly into said room and humidifying the atmosphere therein. 7

3. A heater of the class set forth, comprising, in combination an outer casing open at its lower and upper ends, a jacketed inlet duct in said, casing having its upper end opening into a space to be ventilated and its lower end opening to the .outer atmosphereito admit fresh air into the lower end ofthe duct, said outer casingbeing formed with a water reservoir surrounding the jacket of the duct so that liquid placed in the reservoir may be heated by the jacket and vaporized, and a heating element associated with the lower end of said duct for heating the air passing upwardly through the duct, said jacket having an outlet through which air entering the lower end of said casing and passing upwardly through the jacket may escape, whereby outside fresh air is warmed and moistened and will pass upwardly above said inlet duct, and vitiated air is admitted into the drum and is expelled to the outer atmosphere.

43A body structure forminga provlsion chamber, a draft duct forming a communication between the outside atmosphere near the upper portion of said body structure and the lower portion of said chamber, asecond draft duct forming a communication between the outside atmosphere near the lower portion of said body structure and the upper portion of'said' chamber, a heating element associated with said second duct to heat the air passing upwardly therethrough and a liquid reservoir associated with said parts to be heated by said heating element,

whereby the air admitted into the provision chamber from the outside atmosphere is humidified and circulated through said provision chamber'and the vitiated air from, near the lower portion of the provision chamber is expelled to the outer atmos= phere. p

In testimony whereof, I have signed my name to this specification.

I CHARLES A; MOORE.