US1748519A - Grain drier - Google Patents

Description

eh 25,1930. P. F. NORMANDEAU GRAIN DRIER Filed April 25, 1928 2 Sheets-Sheet Y Inventor 567% fl a wflrzz 2 1930- RF. NORMANDEAU 1,748,519

GRAIN DRIER Filed April 25, 1928 2 Sheets-Sheet 2.

1 threshing machine,

Patented Feb. 25, 1930 PATENT] oFFIcE rararcn r. 'nonalannaaufor RONAN, mon'rma GRAIN DRIER Application mea April 25, 1928. Serial No. 272,718.

The'present invention relates to grain drying apparatus adapted' particularly for use in connection with the drying of wheatdur-g ing the harvesting of the same, and to remove 15 any moisture therefrom, so as to place the grain in a proper condition for storing.

A further object of the invention-is to provide an apparatus of this character adapted for attachment to the grain. harvester or so that the grain, upon being threshe'd may be fed into the drier and discharged therefrom into a suitable conveyor or receptacle for delivery to the grainary.

i 15 I A stillfurthei' object of the invention is to rovide means for utilizing the exhaustgases rom the engine, used for operat n the thresher to provide the; heat for the ryu'ig operation.

-Another object is to provide "an ordinary heating attachment to furnish heat'to the drier should the exhaust gas from the en- 'ne be insufficient for this pur ose.

A still'further object of the invention is to rovide an apparatusof this character of a simple andpractical construction, which is efiicient and reliable in performance, which may be easily and conveniently in-- stalled in operative position upon the thresher, and which is otherwise well adapted for the purposes I intended.

Other objects of the invention will become apparent during the course of the following" 85 taken inconnection drawings forming a and in which drawdetailed description, with the accompanying part of this application,

111?: A igure 1 1s a apparatus with trating the partition formed in t e drier for retaimng the heat in the bottom portion thereon. Figure'2 is a therethrough;

1 Figure 3 is taken substantially ure 2, and

Figure 4 is a similar view, taken along the line 4-4 of Figure 1. g

side elevational view of the a transverse sectional view,

on the line 3-3 of Figtion of the upper end of the body is arranged exhaust manifold 15 of an internal combusfor which the same is.

parts broken awa and illus- Referring now to the drawings in detail, the invention comprises a drying apparatus composed of a cylindrical body 5, having 'ends 6 and 7 respectively to close the body,

each of said ends having concentrically arranged bearings formed therein for rotatably supporting a screw shaft 8, upon which a screw conveyor 8 is mounted. .Atone poran intake openmg 9 and at its opposite end at the lower portion therof is formed a dis: charge spout 10.' The grain depositedinto the body 5, by Way of the intake opening 9 is conveyed longitudinally of the body toward the discharge spout'lO, from which the grain is discharged.

Moved about the body!) is a jacket 11 of a slightly larger diameter whereby to arrange its walls in spaced relation from the walls of the body and provide an air space therebetween. Arranged over the end portion 7 is a hollow casting havinga mouth 13 formed at its lower edge andto which is connected an exhaustpipe'extension 14 leading from the tion engine 16, provided for operating the thresher or other harvesting machine upon which the drier is mounted.

The adjacent end of the shaft 8 extends through the hollow casting 12 and outwardly so thereof with its outer end provided with a. sprocket wheel 17 and adapted for operative connection with the drive shaft of the engine, whereby to operate the screw conveyor 8'." The interior of the casting 12 communicates with the space between the walls of the body 5 and jacket 11, so that the exhaustlgases from the engine may be fed into such space for heating the body. 7 However, the upper portion of the airspace between the body and jacket and its connection with the interior of the casting 12 is closed by n leans of an areaate branch strip 18 suitably secured to the longitudinal sectional viewupper portion of the castin so as to prevent the heated exhaust gases fi om entering the upper portion of the air space. Also, at each side of the body 5 is arranged a horizontally disposed partition 19 rearwardly of the body from the ends of the strip 18 and adapted to close communication between the upper and we .lower portions of the air space between the body and jacket, so as to cause the exhaust gases to circulate at the lower portion of the body and to travel rearwardly with respect 5 thereto and out of a stack carried at the upper portion of the jacket 11. As clearly illustrated in Figure 1 of the drawings, the rear ends of the partitions 19 at each side of the body terminate short of the end of the jacket and incline slightly upwardly shortly of the stack 20, so that the exhaust gases may pass freely therefrom. The exhaust manifold 15 of theengine is also provided with an auxiliary exhaust pipe 21, each of the exhaust pipes l l and 21 having control valves 22 arranged therein to control'the amount of gases permitted-to'gpass into each, of the exhaust pipes. The exhaust pipe 21 is adapted to'exhaust the gase's into the atmosphere. Should 0 the exhaust gases from the engine be insufficient to properl heat the drier, a burner 23 may be attache at the mouth 13 of the casting 12, said burner having a fuel supply pipe 24, connected thereto for feeding fuel to the j 25 burner from. the fuel reservoir 25. Supporting legs or braces 26 are arranged adjacent each end of the drier for suitably attaching the same in operative position upon the harvesting machine. It will be apparent from an the foregoing that the drier may be operatively mounted upon the thresher in a convenient position for receiving the grain for feeding into the intake 9, whereupon the grain will be thoroughly dried as the same is conveyed through the body 5 and thus permit the grain to be stored, without danger of deterioration.

, It is obvious that the invention is susceptible of various changes and modifications,

without departing from the spirit or scope of the invention or sacrificing any of its advantages, and I accordingly claim all such forms of the device to which I am entitled.

Having thus described my invention, what I claim as new is: 1. A grain drier comprising a cylindrical body havin intake and discharge ports arranged in tiie opposite ends thereof, a screw conveyor operatively mounted within the body, a jacket disposed entirely about the sidewalls of the body with its walls in spaced relation from the walls of said body, means for supplying heated air from the space between the body of the jacket, at the end thereof adjacent the intake port, a discharge port for the j acket, at the opposite end thereof, and a partition arranged at each side of the body for closing the space between the same and the jacket and adapted to cause the heated air to circulate at the lower side of said body, said partition terminating, short of the discharge end of the body whereby to admit the heated air from the lower part of the body into the jacketed space about the upper part of the body 2. A grain drier comprising a cylindrical body having intake and discharge ports arranged at the opposite ends,'a jacket mount- I ed on the body and extending entirely about the side walls thereof in spaced relation from the walls of said body whereby to provide an air space between said walls, a screw conveyor operatively arranged in the body,

means for feeding heated air into the space between the body and the jacket at the'end thereof provided with theintake port, a control for the air feed ineans for regulating the volume of heated air admitted into the jacket,

a stack carried by the jacket at its opposite end and forming a discharge portthereof,

said jacket being closed at its upper portion and the air intake end, and a pair of partitions arranged at opposite sides of the body and extending longitudinally thereof whereby to direct the heated air against the lower portion of the body, said partitions being connected attheir forward ends with the lower edges of the closed portion of the jacket PATRICK F. NORMANDEAU.

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