US747099A - Pea-thresher. - Google Patents

Description

, I No. 747,099. BATENTED' DEC. 15, 1902:.

R. W. J. STEWART.

PEA THRESHER.

APPLICATION FILED JULY 14, 1902.

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No. 747.099. PATENTED DEC; 15, 1903.

R. W. J. STEWART.

PEA THRESHER.

APPLICATION FILED JULY 14, 1902. H0 MODEL. 3 SHEETS-SHEET 2.

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R. W. J. STEWART.

PEA THRESHER.

APPLICATION FILED JULY 14, 1902.

H0 MODEL. 3 SHEETS-SHEET 3.

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UNi-TEE I STATES Patented member 15, 1903. 7

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RUBEN J. STEWART, OF DALTON, GEORGIA, ASSIGNOR TO JOHN M. SANDERS, on DALTON, GEORGIA.

PEA THRlESH'ER.

SPECIFICATION forming part of Letters Patent No. 747,099, dated December 15, 1903.

Application filed zrtl 'ir, 190?.

Be it known thatl, RUBEN W. J. STEWART, a citizen of the United States, residing at Dal-i ton, in the county of Whitefield and State of Georgia, have invented certain new and usef 111 Improvements in Pea-Threshers, of which the following is a specification.

My invention'relates to machines for hulling and'separatingpeas, in which the hulling action is performed by a pair of coacting disks and the separating action by a novel arrangement of a blower, tray, and discharge-trough.

The invention aims, primarily, to increase the capacity of machines of this character and to improve the general efficiency of the same; and to this end the invention includes a pair of balling-disks, one of which is provided with a novel construction of feed.-opening.

It further includes the'combination of parts and details of construction, as will be hereinafter described, and particularly pointed out in the claims. 1

In the accompanying drawings, whichillustrate one embodiment of the invention and a modified arrangement of the hulling-disk, Figure 1 shows the complete machine in side elevation. Fig. 2 is a sectional view of .the Fig. 3 is a cross-sectional view of the machine. Fig, 4 is a plan view ofthe preferred form of the fixed hulling-disk; and Fig. 5 is a similar View of a modified construction of this disk, together with the movable disk which coacts therewith. Fig. 6 is a detail view.

As before premised, the machine comprises generally hulling means and means for separating the hulls from the shelled peas. This entire mechanism is contained and supported in a suitable frame A, comprising cornerstandards a, supported from suitable basepieces I) and connected by side and end panels (1. The upper portion of the casing is preferably constructed in the formfof a hopper c, and directly below the same and supported rigidly upon the casingA in any suitable manner is located a fixed hulling-disk E, having a feed-opening 6, arranged axially thereof, and from the under face of this disk a'series of rows of pins 6 depend. Arranged directly 'jseliti No. 115.552. (No model.)

below the fixed disk E and coacting therewith is a' revoluble disk F, provided with a series of rows of pins f, corresponding to the pins 6 and arranged to work between the same. The disk F is carried by a verticallyarranged shaft G, suitably journaled at its lower end in a bearing fixed to the .frame A and at its upper end in the end of an arm 6 extending radially from the wall of the opening 6, which arm is preferably also provided with depending pins. The shaft Gr carries a beveled pinion g, which meshes with a corresponding gear 9, fixed to the end of a horizon tally-arranged shaft h,which extends through the side of the casing A and has secured to the end thereof a drive-wheel I, provided with an operating-handle t'.

The peas fed into the hopper 0 pass through the opening 6 in the disk E into the space between the latter and the disk F, and as the latter disk is rotated through the medium of the wheel I the pins '6 and f serve to break the pea-hulls and release the peas therefrom. By reason of the opening e a large quantity of peas can be constantly fed to and between the disk, thus providing a machine of very large capacity.

The separated peas and hulls pass over the periphery of the disk F and fall into an inclined tray J, located beneath said hullingdisk, which is supported from the sides of the casingA by suitable strapsj. The bottom of the rear portion of this tray is intact, while the front portion thereof is cut away and bridged by a suitable screen l'c, below which a pocket K is located. The forward end of said pocket is entirely open and from the front edge of the bottom thereof a series of fingers m project forwardly. A series of coresponding fingers 71. also project forwardly from the tray, substantially in alinement with the screen it.

Directly in advance of the end .of thetray J a novel construction of trough M, which extends obliquely in relation to'said tray, is located. This trough M is provided with a longitudinally-extending partition m,which separates the same into two compartments 0 and 0, which are in communication at the upper end of the trough, as the upper-end of the partition m terminates short of the .extreme upper end of the trough M. The lower end of the compartment 0 is closed by an end wall 10, which also forms the bottom wall of an angularly-extending spout R, which leads from the lower end of said compartment 0'. At the bottom of the compartment 0' a suitable spout r is provided.

Supported in the casing A and arranged directly below the tray J a suitable fan or blowerS is located, the fan-shaft s of which is provided with a pulley t, belted to the wheel I and driven therefrom. The opposite end of said shaft 8 is provided with a'suitable crank-arm in the present'instance, a disk 8' and an eccentrically-arranged pin 3 serving this purpose, which is connected by a suitable pitman to the lower end of a pivoted rocking-lever t, which is connected to the tray J and serves to give the same a longitudinal vibratory motion as the shaft s rotates. The mouth of the conduit leading from the fan S opens into the compartment 0 of the trough M at an angle to the partition-wall m and below the pocket of the tray J, the forward end of which projects a short distance into the said compartment 0. The peahulls having been broken to release the peas therefrom by the disks E and F, the separated parts fall into the tray J, which is given, as before described, a constant vibratory movement. This shaking of the tray serves to separate the peas from the bulls, and as said tray is slightly inclined downwardly toward its front end the peas and hulls deposited thereon are gradually fed toward the front end of the same and discharged therefrom. The mesh of the screen It is of such a size that the peas will pass through the same and into the pocket K and be discharged therefrom over the fingers m and into the compart- -ment 0, while the hulls will pass over the screen and be discharged from the fingers n. As the hulls reach the fingers n and pass over the ends of the same they are caught in the blast from the fan S and carried out over the end of the trough M, while the peas which have passed over the ends of the fingers m and into the compartment 0 fall down the same and pass through the discharge-spout a" into a suitable receiving-receptable located beneath the same. If any of the smaller peas should be carried up the trough M by the air-blast, the weight of the same will serve to carry them out of the blast of the fan as they reach the upper end of the trough M and they will fall over the upper end of the partition m and into the chamber 0, and passing down through the latter they will be discharged through the spout B. into a suitable receptacle arranged beneath the same.

Instead of providing substantially flat hulling-disks, such as are illustrated in Figs. 2

and 3, I may provide a revoluble disk withneath the opening therein with its forward end open also having projecting fingers, a screen across the top of the pocket, a separating-trough inclined across the front of the tray,anda blast-fan havinga discharge-spout leading to the trough.

2. In a machine of the class described, the combination with a casing, of a stationaryhulling member rigidly carried by the casing and provided with a central feed-opening, an arm carried by said member and projected across the opening therein, a bracket carried by the casing and projected across the opening in the hulling member and below the same, a shaft journaled in the arm and the bracket, and a rotatable hulling member carried by the shaft and located between the bracket and the stationary member.

3. In a machine of the class described,hulling mechanism comprising a fixed disk having an axial feed-opening and a plurality of rows of depending pins,a revoluble disk having a plurality of rows of pins arranged to work between the pins of the first disk, an arm extending inwardly from the wall of said feed-opening, and provided with a plurality of depending pins and a shaft carrying the second disk journaled in said arm, substantially as described.

4:. In a machine of the class described, a casing, hulling mechanism comprising a fixed and a revoluble disk, a tray located beneath said disk, a trough arranged in advance of said tray, a fan supported in the casing having a discharge-spout communicating with said trough, means for driving said fan-shaft during the operation of the hulling mechan ism,a disk carried on the end of said fan-shaft having an eccentrically-arranged pin extending therefrom, a rocking lever connected to said tray, and a pitman connection between said lever and said pin, substantially as described.

5. In a machine for hulling peas, upper and lower coacting disks, said lower disk havinga flat portion provided with a plurality of pins and a plain conical central projection, said upper disk having a radial arm extending parallel with the side of said conical projection, substantially as described.

6. In a machine of the class described, upper and lower coacting disks, said lower disk having a conical central portion and a flat sur- In testimony whereof I aflix my signature,

rounding portion provided with a plurality in presence of two witnesses. of pins, said upper disk having a central feedopening therein, and a radial arm projecting RUBEN STEWART 5 from the wall of said opening with its free end Witnesses:

journaled above the apex of said cone, sub- LESTER OATLETT,

stantially as described. L. H. CRAWFORD.

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