US1039449A

US1039449A - Drier.

Info

Publication number: US1039449A
Application number: US67404212A
Authority: US
Inventors: George E Scott
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-01-29
Filing date: 1912-01-29
Publication date: 1912-09-24
Anticipated expiration: 1929-09-24

Description

G. E. SCOTT.

DRIER.

APPLICATION rILIzD JAN. 29, 1912.

Patented Sept. 24, 1912.

2 SHEETS-SHEET 1.

G. E. SCOTT.

DRIER.

y APPLICATION FILED JAN. 29, 1912. 1,039,449. I Patented sepn.24,1912.

2 SHEETS-SHEET Z.

fag 4v Unrrnn STATES `'Patrizia'frI OFFICE.

GEORGE E. SCOTT, OF CHICAGO, ILLINOIS.

To all-whom t mag/ concem:

DRIEB.

Be it known thatI, GEORGE E. Sco'i'r, a citizen of t-he United States, residing in Chicago, in the county of Cook and State of Illinois, -have invented a new and useful Improvement in Driers, of which the following ispa specification.

This invention relatesto improvements in driers which are particularly adapted for drying corn on the cob, grain, beans or similar articles.

. The object of this invention is to provide a. structure `or device which will dry grainl .open at its top end and being provided at its bottom with aV plurality of movable doors or gates, and a source of compressed airV adapted to be heated by any suitable meanssuch as a steam coil, the source of compressed a1r and steam coil being located within the interior of the drum. Further improvements in connection therewith consist of a hopper below the drum adapted to catch the materials as they are dropped from the drum, and an endless conveyer below the hopper onto which the dried materials are dropped and conveyed to other arts of the factory, means for reciprocating the shaft and the drum therewith, and a solid metal band and cap located on the interior and top of the drum.

The invention furthermore consists in the improvementsin the parts and devices and in the novel combinations of parts and devices herein shown, described'or claimed.

In the drawings forming ,a part of this specification, Figure 1 is a vertical, diametr1cal section of an apparatus embodying my improvements. Fig 2 is a section' taken on the line 2-2 of Fig. 1, looking in the direction of the arrows. Fig. 3 is a horizontal specification of Letters Patent. l Patented sept. 24, 1912.

Application filed January 29, 1912. Serial No. 674,042-

sectional view, taken on the line 3--3 of Fig. 1, looking in the direction of the arrows, and Fig. 4 is an' enlarged detail view, illus` trating the bearing for the vertical shaft and the cam for oscillating the same.

In the drawings, 10 denotes any suit-able form of hopper and adapted to support a jointvor other form of supporting member 11, on which is mounted a block 12, adapted to support a thrust ball bearing 13 and sustain a vertical, rotatable shaft 14, the upper end of the shaft 14 being slidably mounted /in a bracket or bearing 15 secured to any suitable portion' of the flooring 16. Mounted`on the blockV 12 is a plate 17 through which the reduced end 18 of the shaft 14 is adapted to loosely slide up and down and operated as by meansof a cam 19, rigidly attached to a shaft 20 in any suitable manner, having a crank or handle 21 at its outer v end, whereby the shaft '20 may be rotated and reciprocate theshaft 14 up and down whenever it is found necessary toshake the contents of the drum in order to loosen the same and assist in the removal of the icontents through the bottom. Secured to the upper end of the shaft 14 is a suitable pulley 22 adapted to be driven as by means of a belt 23. Secured to the shaft 14 and rotatable therewith is lan annular drum 24, which is shown in the form of afrustum of a hollow cone, but which may be of any other suitable shape, the same com rising a frame composed of a plurality o vertically extending exterior angle irons 25, interior, vertically extending angle irons 26, interior and exterior bands or rings 27 and 28, the same being secured together by any suitable means, such as rivets. Mounted on this structural. iron framework are inner and

exterior walls

29 and 30, the same being composed of wire mesh of heavy stock. rIhe inner wall 29 is c lindrical., whereas the outer wall 30 is conlcal so that the annular drum tapers from the bttom toward the top, whereby, when the material is to be let out of the drum, the same will be prevented from jamming and will readily fall through the openings in the bottom of the drum. The bottom of the drum is also covered with wire ,mesh 31, and is provided with a plurality of doors 32, the same being slidably mounted in suitable guides 33, each of said doors being provided with a handle 34,- Whereby the Same may be drawn out when desired. The upper end of the amular drum is open, and the material or articles to be dried are adapted to be fed into the drum through this open" end `from chutes mounted in the floor 16. Located within the inner or interior wall 29 of the annular drum is a perforated pipe 36, the same being connected with any suitable fsource of. supply of `compressed air or other gas, and adapted to have the supply regulated as by means' of a valve 37. Adjacent the air pipe v36 and surrounding-the shaft 14 is a coil of steam pipe 38 also connected to any suitable source oI steam supply and adapted to be regulated by the valve 39. t

In" practice, I have found, if the hopper when started is completely filled with the rain or other articles, that as the moisture 1s gradually driven off, the bulk of the material decreases or shrinks and leaves an unfilled space at the upper end of the hoper. In order, therefore, .to prevent .the @ated air or gas from passing out` through this unfilled space, instead of being forced .through the inner and outer porous walls of the'drum and thereby'thro-ugh `the material, I have provided a plate 40 which extends overl and covers -the inner open end i .of the drum, and a band of met-a1. 4:1 /extending down a short distance from the top along the interior of the drum.

Infoperation, the drum, with all the bottom doors closed, is-lled `with the corn on the cob,or other materials or articles to be dried from the` chutes 35, and the drum then rotated at aspeed approximating fiftyv revolutions per minute. The .air Aor other gas coming from the pipe36, upon being heated, rises 'and is forced out through the 4,porous inner wall of the annular drum, and

then circulates between the articles or materials in the hopper, and finally passes out through the outer porous wall of the druml or through the open top or porous bottom thereof. The heated a1r in passing from the yinterior to the exterior of the drum nism which I have devised has, in practical operation, proved .extremely efficient, and by actualexperiment, has dried in twenty-four hours the same quantity of material which in former devices has required .ninety-six;

hours, and has produced `a more uniform and satisfactory product, and does lnot blister the materials in the drum at any i I .have shown my invention as appliedto one form of structure which is merely illustrative, and it is obvious that many changes and modifications may be made without de.

' contemplated as fairly fall within the scope of the' appended claims.

I claim p 1. In a drier, in combination, a vertical, annular, rotary drum having portions of its interior and exterior walls porous, through 4which are adapted to pass gases, a gas-heating device located within said drum, and means for rotating the drum. y

2., In a drier, in combination, an annular drum f having porous walls, and provided with an opening at each end thereof through which the articles or material .being dried may be admitted and taken out, and gasheating means located within said drum.

3. In a drier, in combination, a rotary drum adapted to allow gases to pass therethrough, means for supplying a heated gas to said drum, and mechanism for giving said drum a reciprocating movement transverse to its plane of rotation.l

4. In a drier, in combina-tion, an annular drum having portions of its interior andv exterior walls porous and through which gases are adapted to pass, and a gas-heating device, said drum being non-porous plate extendlng over one end of the inner wall of thedrum.

provided with a 5. In a drier, in combination, a rotary,

hollow, vertically disposed 'drum having one of its Walls cylindrical, and the other conical, said wallsv having portions'- thereof porous, whereby gases are adapted to pass therethrough, and means for 'supplying 'a heated gas to said drum.

6. In a drier, in combination, a rotary, hollow, vertically disposed drum having its interior wall cylindrical and its outervwall conical, said walls having portions thereof porous, whereby gases are adapted to passtherethrough, and gas-heating means 1o- 'cated within said drum.

plying a heated gas to said drum, and mechanism for, reciprocating said shaft.

p 9. In a drier, in combination, an annular, vertically disposed drum having porous walls through which gases are adapted to pass, and means for rotating said drum, the

area of the annular section at the bottom of the drum being larger than the area of the annular section at the top, whereby the yably mounted in bearings, means for supgrain or other material is prevented from clogging in its passage from the top to the bottom of the drum.

10. In a drier, in combination, an annular,

vertically disposed drum having porous Walls, means for rotating said drum, said drum being provided with a non-porous band along the inner Wall thereof near the top, and means for supplying a heated gas lto said drum.

ed to pass means for supplying a heated gas to said drum, mechanism for rotating said drum, a' movable door at one end of the drum, anda hopper.

. 13. In a drier, in combination, a verticall disposed rotatable drum,` having Wire mesii interior and exterior spaced Walls means for supplying a heated gas to said drum, said means being located at the lower yendvof the drum, a shaft upon which said drum is mounted, and means for reciprocating said shaft.

14. In a drier, in combination, a rotatable drum having Wire mesh Walls through which are adapted to pass gases an airsupply, and air heating means, said drum having a movable door in the bottom thereof and being tapered from bottom to top.

15. In a drier, in combination, a rotatable, vertically disposed, annular drum having Wire mesh Walls, and having an opening in the to thereof and provided with a door at the ottom end, a non-porous plate extending over and closing the inner portion of the drum at the top thereof, a nonorous band forming a portion of the interlor Wall of the drum and disposed at the top portion thereof, a hopper, air supply`means and air heating means.V

16. In a drier, in combination, an annular, rotatable drum,v a vertical shaft upon which said drum is mounted, said drum being provided with interior andl exterior porous Walls through which gases are adapted to pass, and being tapered from bottom to top, said drum being provided with an opening at the top thereof, and having a movable door-1n the bottom, an air supply,

air heating means, and mechanism for reciprocating said shaft. 4

17. In a drier, in combination, a vertically dis osed, hollow, annular rotary drum having oraminous inner and outer Walls, the outer Wall being exposed freely to the atmosphere, and means for' supplying a heated gas to the interior of the said drum, whereby the gas will pass first through the inner wall, then through the material being dried between the Walls, and at last through the outer Wall to the atmosphere.

GEO. E. SCOTT. Witnesses:

PEARL ABRAMS, H. M.l MUNDAY.