US851466A - Potato cleaning and sizing machine. - Google Patents

Description

,466. PATENTED APR. 23, 1907.

D. WILSON.

POTATO CLEANING AND SIZING MACHINE.

APPLIOATIOII FILED JANA], 1904.

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No. 851,466. PATENTED APR. 23, 1907.

- D. WILSON.

POI A'IO CLEANING AND SIZING MACHINE.

APPLICATIGN FILED JAH.8, 1904.

3 SHEETS-SHEET 2.

No. 851,466. PATENTED APR. 23, 1907. D. WILSON. POTATO CLEANING AND SIZING MACHINE;

APPLIOATION FILED JAN.8, 1904.

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DAVID WILSON, OF RIGOARTON,

LlNLITHGOW, SCOTLAND.

POTATC) CLEANING AND SIZING IVIACHINE.

Specification of Letters Patent.

Patented April 23, 1907.

Application filed January 8,1904. Serial No 188,197.

To all LU/b07771 it may concern..-

Be it known that 1, DAVID \Vrnsox, a subject of the King of the United Kingdom of Great Britain and Ireland, and a resident oi Riccarton, Linlithgow, Scotland, farmer, have invented new and useful Improvements in Potato Cleaning and Sizing Machines, of which the following is a specification.

The object of this .invention is to provide a machine for cleaning and sorting potatoes, etc., and consists in first removing particles of soil adhering to the potatoes, sorting the potatoes according to size and then discharging the assorted potatoes into suitable receptacles.

Figure 1 is a side elevation. Fig. 2 an end View of the right hand side of Fig. 1. Fig. 3 is a cross section of the revolving separating screen. Fig. 4: a part plan of the riddle and traveling table or conveyor. Fig. 5 shows a section of the table in detail.

I employ an elongated separating screen A hexagonal shaped as shown in Fig. 3 and which is capable of being rotated on an axle B which is slightly inclined as seen in Fig. 1. Below the one or lower end of the inclined separating screen is an endless travelling table C, travelling at right angles to the rotating separating screen, as shown by the arrows Fig. 2 the travelling table being formed of parallel laths D Fig. 5 of say galvanized iron and which are riveted to the driving chains 0 The potatoes are fed into the upper end of the separating screen A by means of a hopper (not shown). As the separating screen is revolved the earth and small potatoes escape through the smaller meshes of that end of the separating screen and on to the inclined wired riddle A Fig. 1, below, by which they are further separated from the earth, the small potatoes thus cleaned rolling down the inclined riddle A into a basket below. The intermediate sized potatoes pass on along the separating screen until they arrive at about the centre of the length of the separating screen, where the separating screen is of larger meshes, which allows the intermediate sized potatoes to fall through on to the travelling table C.

The board G, Figs. 1 and 5 divides the length of the travelling table into two portions C C", so that the said intermediate sized potatoes in dropping through the portion (0 ol the revolving separating screen fall on to the one hall portion oi the travelling table; see Fig. 4 which is a part plan oi the separating screen and of the travelling table. The larger potatoes pass out oi the open end of the separating screen on to the other portion C oi the travelling table Fig. l. Thus there are two streams of diil'erent sized potatoes being continuously discharged -i'rom the end of the travelling table, as hereinafter more particularly referred to. .Fig. 4c shows four oi? the laths D of the endless travelling table and which are rivettcd on to the endless driving chains and also shows the division G of the table.

The frame a of the machine is preferably constructed of wooden spars; the whole apparatus being carried by the four wheels a two at each side, so that the machine is portable.

a is a board iixed across the side of the machine and which assists in giving rigidity to the frame work of the machine.

The elongated hexagonal shaped separating screen is supported by the arms B Fig. 3, the said arms being mounted on the axle B, the axle being carried in bearings at each end of the machine.

The riddle A is rotated by means of the wheel I) which may be driven by hand or any other suitable power. Motion to the endless travelling table C is e'il'ected by the sprocket wheels 0, 0 Figs. 1 and 2 which are mounted on the shaft 0'' which is rotated by the sprocket chain F passing over the sprocket wheels E, D.

One end of the travelling table C is ele vated as shown in Fig. 2 for the purpose of discharging the two streams of potatoes into sacks through the depending chute por tion C.

The end of the table frame C is provided. with the hinged doors C so that when the potato bags are filled, and being removed, the potatoes are prevented from dropping out of the end by closing the doors.

To 'lill baskets instead of sacks the ele vated portion of the travelling table maybe dispensed with, the depending discharge orifice C with door C being titted to the end of the straight portion of the frame of the travelling table.

In order to carry the potatoes up the inclined portion C of the travelling table, I

top of the said sprocket wheel by means of form every alternate lath with a projection d, as shown in Fig. 5 which is an enlarged section of Fig. 4 on line 1, 2. l Claim The elevated end of the travelling table C I In a potato cleaning and sizing machine, Fig. 2 passes round the upper sprocket wheel I the combination of a supporting framework, C the bend of the travelling table being 1 a separating screen consisting of a series of guided by sprocket wheel 0 the top of the graduated screens mounted on a shaft theretravelling table being held down on to the in said shaft being directly connected to a driving wheel, a riddle mounted beneath one portion of said separating screen, a divided sorting of sand, gravel, etc., without departing from the spirit of my invention.

flanges e secured at each side of the frame work of the elevator, a portion of the ends of conveying table mounted beneath the other the raised portion (1 of each alternate lath D portion of said separating screen said table being cut away to allow the laths to pass the f receiving motion through the medium of a said projecting flanges e of the elevator chain and sprocket connection from a suitame. i able driving wheel, an elevated chute having The frame C of the table 0 may for 0011- a discharge opening at its highest part, and vergence in transit be turned up on its hinges 1 doors adapted to close said chute. at 6 as shown in Fi 2 I do not limit riiyseh to the exact conl DAVID WVILSON' struction shown and described herein for l cleaning and sorting potatoes, etc., but the same may be varied to be adapted for the Witnesses:

GEORGE DAVIE, D. BURNS JAMIESON.

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