US693072A - Pea-huller. - Google Patents

Description

No. 693,072. Patented'Feb. H. |902.

J. M. SANDERS.

PEA HU LLER.

(Application led Dec. 1, 1899.)

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No. 693,072. Patented iFeb. |'9o2.

J. M. SANDERS.

PEA HULLER.'

(Application filed Dec. 1, 1899.)

(N0 Model.) 2 Sheets-Sheet 2.v

' l @,rramqs UNITED STATES v PATENT EETCE.

JOHN M. SANDERS, OF DALTON, GEORGIA.

PEA-HULLER.

SPECIFICATION forming pert of Lettere Patent No. 693,072, detect February 1'1, 190e.

Application filed December 1,1899.

To tu whom it may concern:

Be it known that I, JOHN M. SANDERS, a citizen of the United States, residing at Dalton, in the county of Whitfield and State of Georgia, have invented certain new and useful lmprovements in Pea-Hullers, of which the following is a specication, reference being had therein to the accompanying drawings.

Myinvention relates to pea-hullers; and its primary object is to provide an efficient machine of this character in which the peas are fed to the side of the hulling-cylinder and. Carried up over the same and in which due provision is made for removing and repairing the operative mechanism.

Other objects of the invention will be disclosed hereinafter, and its characteristic features 0f construction will be fully described, and detined in the appended claims.

In the accompanying drawings, Figure 1 is a vertical central longitudinal section of the machine. Fig. 2 is a plan View of the same with the upper portion of the casing removed, and Figs. 3, 4, 5, and 6 illustrate detail features of the machine.

The lower section of the frame or casing of the machine comprises standards 1, connected by side bars 2 and end bars 3 and also by side and end boards, (designated by the numerals 4 and 5, respectively.) The casing is provided with a cover or upper section of boxlike form provided at one end with a feedhopper 6 andformed with an opening 7, through which the discharge-chute of the machine projects.

Within the lower section of the casing is supported the lower semicircular half 8 of the hulling-concave, which'is preferably Vconstructed of independent sectionsv or staves 9, the ends of which are supported in semicircular grooved supports, each provided at its ends with horizontal brackets 10, which overlap the upper sid'e bars 2 of the frame and are secured thereto removably by bolts 11, which project upwardly through the side bars 2 and are held by nuts 12. Each of said staves is provided with a row of hulling-teeth, the several rows being so alined that spaces of equal distance are left between them for the passage of the teeth of the hulling-cylinder.

The upper half 13 ot' the hulling-concave consists of semicircular grooved frames or Serial No. 738,823. (No model.)

like thelatter, arranged in alined rows to permit of the passage of the teeth of the hullingcylinder. The upper section 13 is hinged to the lower half or section 8 by hinges 18, the leaves of which are secured to the two meeting staves of`1he two halves at one side, as shown.

The hulling-cylinder 19 is mounted upon a rotary shaft 20, supported in bearings 21, secured to the side bars 2 of the frame, and is adapted to revolve centrally within the concave. The teeth 22 ofthe cylinder are arranged in spiral rows and in different vertical planes, so that they will freely pass between the stationary teeth projecting from the concave. It is important that the teeth of both the cylinder and the concave be so proportioned as to length and so relatively arranged that they will on the one hand insure a proper hulling contact with the peas and on the other be a suflicient distance apart to prevent breaking or splitting of the peas during the hulling process. The hullingcylinder consists of counterpart end castings 23, provided with circular grooves 24 on their inner sides and series of sections or staves 25, the ends of which tit the grooves 24, the parts being securely but removably held together by tie-rods 26.

The free end of the upper section 13 of the concave is provided with pivotally-secured straps 27 which extend down within the casing and are adapted to be detachably held by vscrews or bolts 28 against the inner sides ofA the side boards of the casing. The straps 27 support the free end of the sectionr 13 away from the adjacent end of the lower section S, leaving an opening 29, through which the peas fall from the hopper against the side of the cylinder.

Below the hopper 6 is arranged a dischargechute 30, which extends down at an incline within the frame to a point below the lowersection 8 of the concave. This section 8 is provided with an opening 31, through which the hulled material passes, and also with a transverse inclined detlector 32. The bottom 33 of the chute is rem ovablc and is supported by cross- IOO rods 34. The removability of this bottom 33 enables it to be withdrawn when necessary to clear away any accumulation of pods and prevent clogging. A feature of improvement in this connection resides in the fact that the inclined discharge-chute 30 extends directly over one bottom corner of the casing, whichl bottom corner,inclosed by the adjacent casingboards 4 and 5, constitutes a receiving-pocket or place of deposit for the lighter material, which it may be desired to collect. It is obvious that the removability of the bottom or bottom-section 33of the chute provides means for uncovering the said receiving-pocket at one bottom corner of the casing, so that the same will form a place of deposit for the lighter pieces blown past the conveyer 36 by the fan.

Below the opening 32 and arranged transversely with respect to the frame is a concave or semicylindrical screen 35, designed to re` ceive the material which has not been sepav rated and removed by the blast of air from the fan. The peas pass through this screen Vand are deposited in a suitable receptacle;

but the pods containing peas will be conveyed to one end of the screen by a spiral conveyer 36, whose shaft 37 is disposed axially Within the screen. At the end of the screen outside of the machine-frame is located a conveyer casing or chute 38, within which operates an endless conveyer 39, preferably comprising a sprocket-chain 40 and conveyer-blocks 4l. The chain 40 is passed around a sprocketwheel 42 on the shaft 37, and a second sprocket 43, carried by a short shaft 44 at the upper end of the conveyer-casing.

45 indicates an inclined return-chute leading from the upper end of the casing 38 to a point above the hopper G. Y Any suitable arrangement ofl gearing for communicating power to the conveyers 36 and 39 may be employed; but I prefer to gear the shaft 37 of the spiral conveyer to a fan-shaft 46, carrying, as usual, afan 47, arranged torotate within a fan-casing 48, mounted Within one end of the frame of the machine in front of the hulling mechanism. The rear, end of the fan-casing is provided with a deflector49, which directs the currents of air up through the deliverychute 3()v and away from the screen 35 for the hulled peas, which latter drop bygravitythrough the screen. Adriving-shaft 50 is provided, carrying a gear- Wheel 51, which meshes with a pinion 52 on the end of the shaft 2O of the cylinder. Upon the opposite end of the shaft 20 isa belt-pulley 53, from which the fan-shaft 46 is driven by a belt 54 and pulley 54a. The drivingshaft 50 is provided with a crank 55, or may, of course, be driven by any desired power.

The operation will be :readily understood fro'm the foregoing description in connection With the drawings, but canbe described as follows: The peas are fed into the hopper and fall through the opening 29 against the side of the cylinder and are carried up over the chute.

cylinder, making about two-thirds of a revolution, thus insuring a thorough hulling action between the cylinder and concave. The hulled peas readily fall by gravity through the screen, While the detached pods, the., are blown up through the delivery-chute by the force of the air from the fan. In the event that any of the pods are not broken from the peas they will drop'i'nto the screen and will be conveyed by the spiral conveyer to the bottom of the casing 37. They will then be conveyed by the endless conveyor to the return-chute 45, through which they gravitate to the hopper 6 and are returned to the hulling mechanism forrehulling.

It will be observed that by my construction I provide a cylinder and a concave which may be readily repaired by the removal of one or more staves and also that the sections of the concave may be readily separated to straighten or repair their teeth. I also fully provide againstclogging of the parts by employinga removable bottom for the delivery- The teeth and other parts of the hulling mechanism are also so relatively arranged that a thorough hulling of the peas is effected without liability'of crushing or splitting the hulled peas.

While the construction shown in the d'rawings is operative and efficient, I reserve the right to make all such changes or modifications in the details as may properly fall Within the scope of the following claims.

I claimi l. In a pea-huller, the combination with the casing, of an interior cylindrical toothed hulling-concave provided with a side feed-opening and a bottom discharge-opening, an inclined inclosed discharge-chute extending beneath and beyond said discharge-opening, a screen arranged at the lower end of said discharge-chute, a conveyer Working over the screen, a retu r11-con veyer associated with the one workipg over the screen, and a fan having its casing provided with a blast-spout disposed at one side of the screenand arranged to direct a blast over the screen and its convey'er, and through the discharge-chute past the discharge-opening of the concave.

2. In a pea-bullet', the combination with the hulling mechanism, of the casing having at one bottom corner a receiving-pocket, a discharge-chute extending over said pocket and in communication with the discharge-outlet of the hulling mechanism, a blast device arranged to direct the blast into the chute at the lower end thereof, a detachable bottomsection removably fitting in said chute and extending the full length thereof, said bottomsection being so arranged as to provide for uncovering said receiving-pocket.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN M. SANDERS.

lVitnesses:

HENRY E. COOPER, F. O. MGCLEARY.

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