US1757716A

US1757716A - Portable heater for drying grain

Info

Publication number: US1757716A
Application number: US228936A
Authority: US
Inventors: Johnson Axel
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-10-26
Filing date: 1927-10-26
Publication date: 1930-05-06
Anticipated expiration: 1947-05-06

Description

y 6 1930. A.. JOHNSON 1,757,716

PORTABLE HEATER FOR DRYING GRAIN Fi led Oct. 26, 1927 3 Sheets-Sheet 1 May 6, 1930. JOHNSON 1,757,716

PORTABLE HEATER FOR DRYING GRAIN Filed Qc't. 26, 1927 5 Sheets-Sheet P .EQE l lnmswrop. Y A151. Jam/saw.

Arrop/Ers.

May 6, 1930.

A. JOHNSON 1,757,716

PORTABLE HEATER FOR DRYING GRAIN Filed Oct. 26, 1927 3 Sheets-Sheet 3 a J b 46 9 4a Patented May 6, 193( "UNITED STATES PAT m, oFF

v AXEL. JOHNSON, or s'rAvEn AILBE TA, cannon I PORTABLE HEATER non DRYING GRAIN.

Application filed; October 26, 1927. Serial No; 228,936.

A further obj ect of the invention isto provide a, heater of this character which may be readily combined with other types of apparatus for handling grain.

With the, above and other ob]ects in View,

the invention resides essentially in a portable heating chamber and blower, more. fully described in the present specification and illustrated in the accompanying drawings.

Referring nowto the. drawings-in which like characters ofreference indicate corresponding parts in each figure: a Figure 1 is a side elevation partly in section of my complete: grain drying plant- Figure 2 is a fragmentary sectional view of a granary for storing grain, the support 'ing means for the hose, and nozzle being shown in elevation. Figure, 3 is a perspective view of the perforated grain drying pipes.

Figure 4 is a frontv elevation of the air heater. v Figure 5 is a longitudinal section of the heater and spark arrester.

Figure 6 is a side elevation of the nozzle. 7 Figure 7 is an enlarged section on line 7-7 of Figure 6. i i Figure 8 is a fragmentary plan. of the engine bed or channel iron showing the slots. Figure 9 is a longitudinal section through the flanged ferrule. I f v Figure 10 is an enlarged end view of the blower. i i V Figure 11 is a section on line, 11-11 of- Fig. 10. V

Figure 12 is a plan View partly in section of the'two-way outlet and valve mechanism. Figure 13 is a section on the line 13 13 of Fig. 10.

Figure let is a front elevation of the supporting bracket for the hose. V

Referring more particularly to the draw ings, 10' designates a wheeltruck on which is mounted at one end a heating chamber or furnace 11, provided with a plurality oflon gitudinally extending airtu'bes 12 communicating with

chambers

13 and 14 at each end which in turn communicate; with thedischargc pipe 15 and an intake pipe 16 respectively. For the discharge of the products of combus: tion'a flue pipe 1'2 isprovid'edr extending out- 7 wardly and downwardly into ahumidifier or container 18;:in which is water, whereby sparks andcthe like coming through the flue 17. are eliminated. The container 18 is provided with a discharge pipe:1,9:.

It will thus beseen that on the furnace 11 I being fired the air in the tubes 12 will be at once l1e ated,1pr0viding a source of heat sup: ply. (see Fig. 5).. Connected to,- the intake pipe 16 in any suitable manner (see Fig. 1) by means ofa flexible, section 20 is a blower 21 (see Figs. lO'and 11). provided with a 7 two-way air outlet2-2 roundedvat the end for hose connection see Fig. 12) one arm 23. of which is, connected to the flexible section 20 and thence-to the air. heater 1 1 to grain drier 24, and the other arm 25 may be con- 7 nected to a, suitable grain conveyor member 26 through the hose 27, the blower thereby being adapted to a dual function as hereinafter more fully referred to.

Between the chamber 13' Within the; fur- S0 nace 11 and flue pipeli' a conduit 28 ispositioned downwardly turned atone end within the flue 17 and conforming to theshape there of. A portion of the'air enteringthe: chamber 13 from the blower will pass through the 8 conduit 28, the amount being regulated by the valve 29 intermediately positioned on theconduit- 28. so that the draft in. the flue 17 may beconsiderabl intensified which will provide forthe reac y elimination of the, products of combustion from the furnace chamber. and will provide. for the forcing of these products into, the water contained in the container 18. for spark arresting purposes. The blower 21 associated with the furnacestructure is pr0.- vi'ded w'ith'the usual drive shaft 30 j ournalled V in suitable pillowblocksBl so, that the shaft protrudes-from the] blower casing at one end and is provided with a pulley 32. By means of a belt 33 the pulley 32 is connected with 99 then riveted to the circular revolving partitions 37. The stationary partitions are provided with a large air passage 38 in the being retained centre and are then notc-hedinto 'staves 39 on the outside circumference and holding the return guide vanes 40 adapted to lead air back through centre and moredirectly, thus counteracting the rotary motion set up which would tend to greatly reduce the'elficiency of the blower; :1

i ipressure gauge 41 is provided on the two-Way outlet 22 to indicate the amount of resistance in operatio-i1,1 and" thereby the amountpenetrating the grain, as hereinafter morefully referred to. This will materially assistin selecting size and power of plants for individual undertakings; Also 'on the two-way outlet are the hose connections the hose 20 leading to the air heater 11, and the hose 27 leading to grain conveyor 48. Both may housed at the same time or independently by the useof the valve 48?, the valve in any position by the hand screw48". V M

From the foregoing it will beseen that on operation of the blower 211 and the generation of heat in the furnace 11 the air passing from the blower through the conduit 16 tochamber 13 and'thence through tubes 121:0 chamber 14 will beheated during this passage and will subsequently passthr'o'ugh conduit 15 in heated condition underpressure to be delivered to a suitable distributor, asshown and herein referred to, while aportion of the air, as previously referredto, will pass through the conduit 28 providing a more intense draft in theflue 17 through'which the products of combustion passwhich are subsequently clel'ivered through the medium of thewater in the container 18 to the stack discharge pipe 19.

' This type of heating apparatus, as referred to, may be associated with suitable distributing and other mechanisms such as illustrat ed. Thedistributing lfmernber in connection with the discharge pipe 15 includes a main vertical pipe 42 (see Figure 3) communicating with horizontally extending branch pipes 43 and 44in turn provided at spaced intervals with a plurality of distributing, suitably bent branch pipes 25 connected to perforated lengths'of pipes 46 adapted to be inserted into the grain at any angle. In this way the predetermined airfrom the chamber 11 is injected into the grain as illustrated in Fig. 1 in the granary or the like 47;

' For removing grain from a granary, the

air conveyor hose'27 is connected to a grain conveyor 48, this being provided with a sucs tion head 49, suction being induced or generated by the blast or air current through the nozzle 50 from air hose 27, as indicated by dotted lines in Fig. 2. The grain during the operation will follow. the. outside curve so thatthe air nozzle will not obstruct its course A grain delivery hose 51 may also be provided"fordelivering grain into wagons or other special places. For supporting the air conveyor-hose 27 and the grain conveyor 48 Iprovide, as illustrated in Fig. 14, a support consisting of

rods

52 and 53 secured to brackets '54 and provided with a clamping ear member 55at the top to engage "with the" hose. A chain 56 is also provided'at the'top to' retain the hose supporting member at any the blower 21 may be moved to take upth'e' slack of the belt 33,3vhileinFigs. 1 and 9 is disclosed a filler or flanged ferrule 59] designed to fit into the wall'of'the granary, s0

that the pipes 46 may be conveniently insert- V 7 ed through the wall into the grain The'se ferrules may be plugged to prevent spilling of grain and left iii the walls. These are i'mportant details in the construction, materially assisting in facilitating the erection of the apparatus" and. the satisfactory 1 working h reof when erected.

F rom the foregoing thefo'p'eration" of my device will be apparent. When it is'desir'ed to simply dry grain in agrafiary, the heat chamber or 'furnacell is started andwith the blower 21 delivering at' a predetermined tem erature u'nder'pressure a current or blast.

of hot air, throughthe distributing system and the perforated pipes 46 v'i nto'the grain. When it is desired, on the other hand, tolfremove grain from one place to another, or

from a granary into wagons, the, blower 21 is operated and a suction placed through the air conveyor 27provided within the granary, causingthe grain to bedischarged the hose 46 to any desired point. I As many changes could be made inthe above construction, and many apparently widely different embodiments of. my invention, within the scope of the claim, construct:

through ed without departing. from the spirit or scope thereof, it is intended that all matter contained in the present specification I andaccompanying drawings shall be interpreted in an illustrative and not in a limiting sense.

i What Iclaim as my invention is:

A portable heater-for drying grain comprising a combustionechamber,'a grate in saidchamber, air compartments at each end of the chamber, air conducting tubes between the air compartments, an air inlet in connection with one compartment, and an air outlet in connection with the other compartment, a discharge conduit in connection With the chamber for the products of combustion, a draught inducing conduit connected With one of the air compartments and opening into the discharge conduit, Valve means for regulating the draught inducing conduit, a blower connected to the air inlet and spark arresting means in connection with the discharge conduit.

In witness whereof I have my hand.

hereunto set AXEL JOHNSON.