US773858A - Pea-shelling machine. - Google Patents

Description

No. 773,858. PATBNTED NOV. 1, 1904. J. H. EMPsoN.

PEA SHELLING MACHINE.

APPLICATION FILED AUG. s, 1903. No MODEL; FQ mums-41111121: 1.

A NORA/EY.

No. 773,858. PATENTED NOV. l, 1904.

J. H. BMPSON.

PEA SHELLING MACHINE.

APPLICATION FILED AUG. 3, 1903.

N0 MODEL. iSHBBTS-SHEET 2.

K INI/ENTOR.

U70/z2?, HiT/@zusam A TTORNEY'.

WITNESSES:

PATENTED NOV. 1, 1904.

J. H. BMPSON.

PEA SHELLING MACHINE. APPLICATION FILED AUG. 3, 1903. y

4 SHEETS-SHEET 3.

N0 MODEL.

W/TNEssES.-

ATTORNEY.

PATENTED NOVA, 1904..

J. H. BMPSON. PBA SHELLING MACHINE.

APPLICATION FILED AUG, s. 190s.

4 SHEETS-SHEET 4.

N0 MODEL.

if.. 0 AN.

IN1/M1701?.

WJTNESSES.-

ATTORNEY.-

UNTTEDL STATES Patented November 1, 1904.

JOHN H. EMPSON, OF LONGMONT, COLORADO.

PEA-SHELLlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 773,858, dated November 1, 1904. Application filed August 3, 1903. Serial No. 167,994. (No model.)

To rz/ZZ 1071/0771/ it may concern.-

Be it known thatI, JOHN H. EMPsoN, a citizen of the United States,1'esidi ng atLongmont, in the county of Boulder and State of Colorado, have invented certain new and useful Improvements in Pea-Shelling Machines, of which the following is a specification.

The machine represented in the accompanying drawings in its general features and mode of operation is similar to that set forth in my previous patents. In the present instance my invention relates to important improvements which obviate certain serious difficulties which have been encountered in along' acquaintance with the machine and its operation.

The objects of the invention are, first, to provide a mechanism for driving the outer cylinder which overcomes the unsymmetrical uneven motion resulting from the means formerly employed; second, to provide an adequatesupportforthetravelingchaff-conveying apron which is simple in construction and offers minimum resistance to passage of said apron over its supporting-surface; third, to provide a means for securing the screen-frames to the outer drum in such manner as to permit them to be removed easily and such that said frames are held firmly in place when the machine is in operation; fourth, to provide a device for guiding the vines after their discharge onto a slatted rack at the discharge end of the machine; fifth, to provide a means whereby the loose peas remaining in the mass of vines after their discharge from the drum are freed and recovered, thereby avoiding a considerable loss of peas; sixth, to provide a simple and effective method for driving the apron which separates the remaining loose peas from the vines after their discharge from the drum; seventh, to provide a simple, inexpensive, and rigid construction for the inner drum; eighth, to provide a means for fastening the rubber paddles to the faces of the inner drum which overcomes the troublesome lack of rigidity which has been heretofore experienced; ninth, to provide a simple, inexpensive, and rigid construction for the rollers about which the traveling aprons move; tenth, to provide a device within the outer drum which prel vents the too rapid progress of the vines through said drum, thereby opposing the tendency of the vines to carry through with them peas which have beenhulled, and thereby also subjecting them to a more thorough threshing by the paddles on the inner rotating drum. l attain these objects by the means illustrated in the accompanying drawings.

In the drawings, Figure 1 represents a par'.- tial vertical longitudinal section and side elevation of such parts as it is necessary to show to give an understanding of the improvements. Fig. 2 is a plan view and an end elevation of the improved apron-support. Fig. 3 is a partial vertical section of the angle-iron which is used to prevent the too-rapid advance of the vines through the drum. Fig. 4 represents apartial transverse vertical section and end elevation of the machine along the line o a of Fig. 1, certain parts being omitted for the purpose of disclosing others. Fig. 5 represents a side elevation of the body of the machine, showing the improved device for driving the outer drum. Fig. 6 is a sectional view of the shell of the outer drum, showing the improved means for attaching the screen-frames. Fig. 7 represents a longitudinal sectional view of the inner drum, showing an improved construction. Fig. 8 and Fig. 9 represent the rubber covered paddle and in section the means for securing it to the boards of the inner drum. Fig. 1() represents in end elevation and partial longitudinal section the vinebeater. Fig. 11 represents in section the construction of the rollers about which the aprons travel.

rEhe general mode of operation of the machine illustrated in the accompanying drawings is similar to that of former patentsnamely, No. 546,085, dated September 10, 1895, and No. 604,377, dated May 24, 1898- granted to myself.

It is to be understood that as regards the inventions herein claimed l do not confine myself in their application to the speciiic type of pea-huller herein described, since they may to advantage be applied to any pea-hulling machine which employs the parts to which my inventions appertain.

Referring to the drawings, A represents the IOO two bearing-surfaces upon the periphery of f was so troublesome because of its tendency to the slowly-rotating outer drum, which rest become clogged by the refuse of the machine. upon and rotate concurrently with the two J The necessity' for the bevel-gearingis obviated pairs of pulleys B. (Shown in Figs. 4 and r by the adoption of this device, and a simple 5 C represents the two shafts upon which the method fordrivingthe straw-conveying apron 70 said pulleys are fixed. l is secured.

D represents two annular racks situated on i N represents the spiders which form the thc periphery of the outer drum, which are framework of the inner beating-drum or core geared with two pinions F, which are fixed l of the machine. These spiders N are seated IO on one of the shafts (l, bearing two of the and set-screwed upon ashaft O, which is liour- 75 pulleys B B. One of these pinions E is geared l naled on the framework. These spiders are with a pinion 2 upon the shaft 1, which shaft adapted to receive and maintain in position receives rotary motion, through chain and l near their outer edges and between adjacent sprocket, from the shaft O of the inner rappairs the plates 13, of any suitable material,

I5 idly-revolving drum. It is to be understood, which when in position form complete the sur- 8O however, that I do not limit myself to this face of the drum. Extending longitudinally particular means of driving the shaft (l, for through the drum from end to end are the any convenient connection with the powerthrough-bolts P, designed to hold the spiders shaft of the machine would answer as well. firmlyin place and to give rigidity to the drinn.

2O F represents the longitudinal supports for The heads and nuts of these through-bolts bear 85 the support of the traveling' cl'iaff-conveying upon the exterior faces of the end spiders of apron 3, the upiif'ardly-trai/'eling portion of the drum. which is in contact at its lower face with the In Figs.`9 and 10 Q is a reinforcing-plate transverse members G of the support. placed beneath each paddle upon the inner face H represents reinforcing-plates fixed beof the drum. The through-bolt 15 passes 90 neath the transverse members G. through this plate, thence through the plate I represents the beveled ends of the trans- 13 of the drum, thence through the base of the verse members G, presenting to the traveling paddle 14, all being secured by a nut bearing apron a curved surface which minimizes fricupon the upper face of the base of the paddle tion and wear on the apron. 14. The advantage of this moans for attach- 95 .I is an iron T-bar extending lengthwise ing the paddle lies in the rigid fixation made within the outer drum, to which are attached possible by the metal reii'iforcing-plate Q. the screen-frames 7 of said drum. 4 repre- Formerly because of the fact that the padsents stud-bolts fixed at convenient intervals dles were not firmly attached to the faces of the drum great difficulty was experienced in IDO 3S in said T-bar, bearing each a thiimb-screw o and a washer 6, which is of sufficient size to maintainingaproper impact between the paddles and the pea-pods. The proper adjustengage both of said frames 7, abutting along the line of the T-bar J ment of this impact is of the utmost importance.

Ii represents two guides in the form of a 40 bottomless trough attached in any convenient In Fig. 11, R represents spiders which are 105 seated and set-screwed upon a shaft S. These manner to the framework of the machine so spiders (similar to those in the inner drum, see

arranged as to guide the vines upon their dis- N) are adapted to receive and maintain in pochargc from the drums onto any appliance,

sition near their outer edges between adjacent such as the slatted rack 8, which is placed below to receive them. This device possesses pairs plates T, of any suitable material, which 110 form complete the surface of the roller. This the advantage of doing away with the hitherto troublesome radial discharge and confining construction permits the use of a roller of considerable radius, which is most desirable and the vines to that particular part of the machine where they are next to be dealt with. which at the same time is light and runs easily with slight expenditure of power. II 5 Lisa rapidly-rotating system of beaters driven in any convenient manner, upon which V (see Figs. 1 and 3) is a circular angle-iron the discharged vines fall and are thoroughly placed within the outer drum adjacent to its inner surface which checks the advance of beaten, permitting any peas therewith to fall the pea-vines as they move toward the disupon whatever device may be below to receive them-as, for example, the straw-conveying charge end of the machine. It has been found I 2O heretofore that when the vines are forced apron 9.

M is a belt, of any suitable material, actuthrough the outer drum by the action of obated by a driving-pulley 10 on a shaft which liquely-set paddles on the inner rotating' drinn receives rotary motion from any convenient said vines progress with such speed that they source. This belt M passes ovei idlers 11 carry with themagreatmanyloosepeas,which I25 and engages another pulley 12 on the shaft of are eitlierlost or recovered with difficulty after the roller about which moves the straw-conthe vines have been discharged from the drums. This angle-iron, however` impedes veying apron 9. This device possesses the advantage of extreme simplicity and docs thc advance of the vines and subjects them to a prolonged agitation by the beating-paddles 130 away with the bevel-gearing, which heretofore on the inner rotating drum, by which the loose' peas are freed and the perforations in the outer drum instead of being' carried onward by the rush of the vines.

In the operation of this machine the driving-gear is so arranged and positioned that the inner drum W and the outer drum X will be rotated at relatively different rates of speed for purposes well understood in this art, and as the vines are passed into the feed end Y they are thoroughly threshed by the paddles 14 upon the periphery of the inner rapidlyrotating' drum IV, the shelled peas falling throug'h the perforations in the outer drum X. Said paddles 14 are arranged obliquely in the form of a spiral, so that as they revolve they force the vines toward end Z of the machine. Thrust out at the discharge end Z the vines, conducted by the guides K, fall upon the slatted rack 8, whence they fall upon the vinebeater L, where they are thoroughly agitated, the shelled peas confined therein being permitted to fall upon the apron 9, down the face of which they roll, while the vines are conveyed upwardly by the apron and dumped over the roller S. The peas which fall through the perforations in the outer drum X strike the endless traveling apron 3 and roll down its surface into a trough. Such chaff as falls through with the peas adheres to the surface of the apron and is removed by the brush 15.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A pea-shelling' machine having, in combination, an inclined adjustable traveling' apron, and a support for the upper run of said apron comprising longitudinal rails, and a plurality of transverse spaced inclined slats secured thereto with their ends projecting beyond the longitudinal rails, the whole being positioned to permit easy contact between the upper surfaces of said slats and the under surface of the upper run of said apron, said slats being' reinforced upon their under sides near their ends, and having their ends beveled to present curved surfaces to the under side of said apron, whatever its adjustment, at the points of initial and final contact therewith.

2. A pea-shelling machine having, in combination, a drum which discharges the depletedvines through one end, a rack which receives the discharged vines, and conveyingguides above said rack at opposite sides of the discharge end of said drum which direct the vines to the rack.

permitted to fall through 3. A pea-shelling machine having, in combination, a hulling-drum, and means for liberating peas from the masses of vines after their discharge from said drum, said means comprising a rapidly-rotating beater below said drum and a separator below said beater, the vines being dropped from said drum upon said beater and being agitated thereby, the freed peas and depleted vines then falling upon said separator which consists in a smoothsurfaced inclined traveling apron which carries the vines upward and dumps them, the freed peas rolling down the inclined surface of said apron.

4. A pea-shelling machine having an inner rotating' drum comprising a plurality of spi- Y.

dersl including end spiders and intermediate spiders; a shaft upon which said spiders are fastened; each pair of said spiders being' adapted to receive between them and maintain in position' near their outer edges plates which form complete the surface of said inner drum; longitudinal throug'h-bolts, eX- tending the entire length of said drum and through all the spiders, by which said spiders are held firmly in position and said drum is made rigid; the heads and nuts of said throughbolts hearing upon the exterior faces of theV said two end spiders.

5. A pea-shelling machine having a traveling apron, and rollers about which said apron moves, consisting of a plurality of spiders including end spiders and intermediate spiders; a shaft upon which said spiders are fastened; each pair of the said spiders being adapted to receive between them and maintain in position near their edges plates which form complete the surface of said roller.

6. A pea-shelling machine having, in combination, a slowly rotating outer hullingdrum; a rapidly-rotating inner beating-drum, having means for feeding vines through said outer drum; and means forretarding the progress of said vines during their travel through said outer drum, consisting of an annular rim secured to the inside of said outer drum and bearing an annular iiange extending inwardly into said outer drum toward said inner drum.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JOHN H. EMPSON.

Vitnesses:

FRED A. ALLEN, C. K. REGISTER.

IOO

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