US2044102A - Grain-sampling mechanism - Google Patents

Description

June 16, 1936; F. F. RQSEWARNEv 2,044,102

GRAIN SAMPLING 'MECHNISM Filed Oct. 4,. 1934 4 Sheets-Sheet' 5 I I V" 2 2 o Ft .5T a l '4-7 7 j J5 -2 i n l Aw l l .30 a

j /f 5" 43 i wem 58 1 l l f/ l F i, i V 14 wfy Bos-Wam June 16, 1936- F. F. Rosi-:WARNE GRAIN SAMPLING MECHANISM Filed Oct. 4, 1954 LIKSI'leetS-SheeiI 4 CJ f Cil

Patented June 16, 1936 UNITED STATES lATENT OFFICE 6 Claims.

The present invention relates to mechanism for withdrawing from a mass of grain, beans and the like samples thereof simultaneously with the delivery of the mass to containers for storage or shipment, and to means for identifying such samples with the mass from which the same are withdrawn, and to receptacles for the samples adapted to be so applied to said mechanism as to receive such samples only; and the object of the invention is, generally, to provide improved mechanism, means and receptacles of that character and in combinations; and, more particularly, to provide certain forms and embodiments of the invention whereby its purposes may be attained.

These and any other and more specific objects hereinafter appearing are attained by, and the invention finds preferable embodiment in, the structures and devices hereinafter particularly described in the body of this specification and illustrated by the accompanying drawings, in which:

Figure l is a top plan View of mechanism for withdrawing samples of grain, beans or the like from a bin or its discharge spout which is shown in horizontal section taken on line I I of Figure 2;

Figure 2 is an elevational front View thereof partially sectioned vertically on line 2 2 of Figure 1;

Figure 3 is an elevational right hand side view of the same, the gate valve being shown in open position; f

Figure 4 is a horizontal sectional Aview thereof taken on line 4 4 of Figure 3;

Figure 5 is a vertical sectional View of the same taken on line 5 5 of Figure 6;

Figure 6 is a Vertical sectional View of saidn mechanism taken on line 6 6 of Figure 5;

Figure 'l is a top plan view of receptacle for said samples and adjacent parts partially sectioned on line 'I 'I of Figure 8;

Figure 8 is a vertical sectional view thereof taken on line 8 8 of Figure 7;

Figure 9 is a vertical sectional view of the same taken on line 9 9 of Figure 8;

Figure 10 is a top plan View of parts of saidv receptacle one of such parts being sectioned horizontally on line 1 1 of Figure 8;

Figure 11 is a like view of said parts in another position;

' Figure 12 is a vertical sectional View of parts of said receptacle taken on line I2 I2 of Figure 11;

Figure 13 is a Vertical sectional View (enlarged) of parts of said mechanism taken on line 5 5 of Figure 6;

Figure 14 is a view of a paper strip having markings for identifying the samples with the mass of grain from which they were withdrawn. i;

In the embodiment of the invention illustrated by these drawings, a mechanism is shown for withdrawing samples of grain, beans or the like passing through the discharge spout I of the bin of a warehouse, elevator, etc., said spout having 1'0 a gate valve 2 slidable horizontally in bearings 3, the grain, etc. indicated at 4 resting on this gate in its closed position shown in Figures 1, 2 and passing by gravity out of the bin when the gate is slid outwardly to open position seen in Figures 3, 4. When this gate is opened, the most of the mass of grain falls through the lower portion 5 of the spout and may be received in a suitable vessel or bag 6 for storage or shipment, while a smaller portion of the grain falls through an opening 'I in the upper wall 8 of a cross-sectionally round chute 9 whose inner end I0 having said opening extends into said spout immediately below the gate when closed, as shown in Figure 2. i

This chute contains journalled at II in its ends 5- a helical conveyor I2 rotatable to feed the grain samples through the chute and through its opening I3 in the right hand end of its bottom wall I4 and thus deliver thesamples into a receptacle, h the can I5. i

The conveyor has a gear I6 on its shaft portion with which meshes a driving gear I'I rotatable on a hollow shaft I8 which is rotatable in bearings I9 in the housing 20. This gear I'I is rotated by Y a spiral spring 2l whose inner end is secured at 22 thereto and whose outer end is engaged at 23 by an arm 24 of a sleeve 25 rotatable on the hollow shaft I8. A gear 26 turnable on this sleeve 25 has a pawl 2l engaging ratchet teeth 28 on the hub portion 29 of said sleeve so that the spring o may be wound up or compressed by the toothed rack 3U meshing with said gear 26 and extending parallel with the gate 2 being mounted at 3| thereon so as to move horizontally therewith in the gates sliding movement. 45

When this gate is drawn outwardly so that the grain may fall through the spout, the gear 2B is rotated to wind up the spring. This spring then unwinding rotates the gear I'I and the gear I6 on the conveyors shaft portion thus causing the conveyor to operate as above explained.

Means are provided for delivering identically marked portions of a paper stripl 32 (shown in Figure 14) to the bag 6 containing the mass of grain and to the receptacle or can I5 containing 5'5 the samples thereof, as Well as to the operator of the mechanism. This strip has sections each comprising a forward main part 33 and smaller parts 34, 35 side by side behind it, said parts 34, 35 being desirably separated by a slit 36 cut through the paper strip. All these parts 33, 34, 35 of each section of the strip are marked identically as by the numbers (499, 500, 501) printed thereon indicated in Figure 14. This strip is Wound on a drum 31 turnable on a spindle 38 extending through the hollow shaft I8 and having a threaded inner end 39 turned at 40 into the inner side 4I of the housing 20, and having also a knurled handle 68 for unscrewing the spindle to remove the same so that the drum may be withdrawn (the cover 43 being opened) to apply to the drum new rolls of paper strips.

'Ihe hollow shaft I8 has a key pin 44 engaging in the drum to rotate the same and the drum has a radial slot 6I receiving shaft I8 so that the drum may be `moved upwardly sidewise out of the housing. A sleeve 45 is keyed at 46 to the hollow shaft. A gear 41 is rotatable on this sleeve and has a pawl 48 engaging the teeth 49 of its hub portion 50 (Figure 13). A toothed rack 5I parallel with rack 36 and movable with the gate 2 meshes with this gear 41 to rotate the same and the drum in order to push the free end of the strip 32 through the slit 52 when the gate is drawn outwardly.

When thisis done, the part 33 of the strip projects from said casing 20 and may be removed by the operator, but the rearward parts 34, 35 of the same section of the strip are severed therefrom by a cutter blade 53 (Figure 6) whose carrying lever 54 is fulcrumed at 55, this blade being forced downwardly against pressure of a spring 56, to sever said parts 34, 35, by the cam arm 51 of said lever striking the part 58 of the rack 5I when the gate is drawn to its outermost position. These parts 34, 35 of the strip when thus severed fall on opposite sides of a pointed partition 59 so that part 34 falls through a passage 62 into the bag 6 with the mass of the grain, while part 35 falls though a passage 63 into the can or receptacle I5 with the grain samples (Figure 5).

The hollow shaft I8 has handle wings 42 for manually turning the same.

The receptacle for the grain samples, designated generally I5, with its various parts is illustrated in Figures 7, 8, 9, 10, 11, 12. This receptacle comprises the vessel or can 64 desirably of glass having a metal top or cover 65 screwed on its open upper end as shown in Figure 8. This cover has a at horizontal metal plate 66 bifurcated at 61 to slip over and straddle the downwardly extending neck portion 68 of the chute 9 (communicating with its discharge opening I3 as seen in Figures '7 and 8) to removably mount the receptacle in place. VSaid cover has inside it a parallel plate 69 on which is centrally pivoted at 10 a parallel shutter plate 1I. 'I'he cover and the shutter plate and the plate 69 have round openings 12, 13, 14 respectively in registration with said opening I3 in the operative position of the mechanism shown in Figure 8, so that the grain samples may fall from the chute into the can 64.

The shutter plate 1I has an arcuate slot therethrough comprising a rst portion 15 of greater radius and a second portion 16 of less radius connected by a radial portion 11. The portion 'I5 has at its end an inwardly radial extension 18 and an outwardly radial extension 19, and the portion 16 has at its end an inwardly radial extension 80.

A latch 8| pivotally mounted at 82 on plate 69 extends upwardly through said arcuate slot and through a slot 83 in the cover 65. Before the cover is screwed on the can 64 the shutter plate 'I'I is turned so that this latch engages in extension 18 of slot portion 15 as shown in Figure 10, so that the shutter plate is held in the position there shown in which its opening 13 is not in registration with the covers opening 12. The cover being now applied to the can the receptacle is mounted on said neck portion 68 and as the bifurcated plate 66 is pushed to its limited inward position shown in Figures 7 and 8, the extremity 84 of said neck portions outwardly extending horizontal portion 85 strikes the upper end of said latch as shown lin Figure S and turns it against its spring 86 out of extension 18 and into the main part of portion 15 of the arcuate slot so that the spiral spring 81 is permitted to turn the shutter plate to bring its opening 13 into registration with openings 12 and 14 as seen in Figure 8 in order that the grain may run into the can. This turning movement of the shutter plate is stopped by the side 88 of the slots portion 11 striking the latch, and the shutter plate is held in this position during the lling of the can.

When the receptacle is lled sufliciently, it is withdrawn from the necks extension 85, and the latchs spring 86 draws the latch out of the arcuate slots portion 1'! and into its portion 16 whereupon the spiral spring 81 is permitted to further rotate the shutter plate to the position seen in Figure 11 wherein its opening 13 is not in registration with the covers opening 12 and the can is thus sealed. This second turning movement of the shutter plate is stopped by the upwardly turned end 89 of a spring latch 9D engaging in the extension 19 of portion 'I5 of the arcuate slot.

The can 64 and cover 65 may be secured together with seals of any common form (not shown) which must be broken to remove the cover. When the cover is removed, the spring latch 90 may be released by drawing its pin handle 9I downwardly (Figure 12).

The invention being intended to be pointed out in the claims, is not to be limited to or by details of construction of any particular embodiment thereof illustrated by the drawings or hereinbefore described.

I claim:

1. Mechanism for withdrawing samples of a mass of grain or the like passing through a discharge spout, comprising: a chute for the samples having an inlet from the spout; a gate valve normally closing the spout and the chute and openable to permit the mass of the grain to pass outwardly through the spout and a less amount of the grain as samples thereof to simultaneously pass outwardly through the chute; a conveyor for feeding the samples through the chute; means for initiating the operation of the conveyor by the opening movement of the valve.

, 2. Mechanism for withdrawing samples of a mass of grain or the like passing through a discharge spout, comprising: a chute for the samples having an inlet from the spout; a valve normally closing the spout and the chute and openable to permit the mass of the grain to pass outwardly through the spout and a less amount of the grain as samples thereof to simultaneously pass outwardly through the chute; a conveyor for feeding the samples through the chute; means for initiating the operation of the conveyor by the opening movement of the valve; means for rotatably mounting a paper roll comprising successive sections each section having separable parts disp-laying identical markings; means operable by the movement of the valve for projecting the free end of the roll and for separating said parts; means for depositing said parts in the spout and chute respectively.

3. In combination: a chute for samples of grain or the like; a valve normally closing the chute and openable to permit the samples to pass outwardly through the chute; a receptacle for the samples adapted to be removably mounted on the chute at its outlet and having a turnable valve plate with an opening therethrough initially out of registration with said outlet, a spring urging said plate to a turned position wherein said opening and outlet are in registration to permit passage of the samples therethrough into the receptacle; a latch releasably holding the plate in such non-registering initial position and movable to release said plate by the engagement of the latch with a portion of the chute in the mounting movement of the receptacle thereon.

4. In combination: a chute for samples of grain or the like; a valve normally closing the chute and openable to permit the samples to pass outwardly through the chute; a receptacle for the samples adapted to be removably mounted on the chute at its outlet and having a turnable valve plate with an opening therethrough initially out of registration with said outlet, a spring urging said plate to a turned position wherein said opening and outlet are in registration to permit passage of the samples therethrough into the receptacle; a latch releasably holding the plate in such non-registering initial position and movable against a spring to release said plate by the engagement of the latch with a portion of the chute in the mounting movement of the receptacle thereon and to releasably hold the plate in such registering position, the latch being releasable from its position wherein it holds the plate in such registering position by withdrawing the receptacle from its mounted position thus disengaging the latch from the chute and thereby permitting the farther turning movement of the plate to a position wherein its opening is again out of registration with said outlet.

5. In combination: a chute for samples of grain or the like; a Valve normally closing the chute and openable to permit the samples to pass outwardly through the chute; a receptacle for the samples adapted to be removably mounted on the chute at its outlet and having a turnable valve plate with an opening therethrough initially out of registration with said outlet, a spring urging said plate to a turned position wherein said opening and outlet are in registration to permit passage of the samples therethrough into the receptacle; a latch releasably holding the plate in such non-registering initial position and movable against a spring to release said plate by the engagement of the latch with a portion of the chute in the mounting movement of the receptacle thereon and to releasably hold the plate in such registering position, the latch being releasable from its position wherein it holds the plate in such registering position by withdrawing the receptacle from its mounted position thus disengaging the latch from the chute and thereby permitting the farther turning movement of the plate to a position wherein its opening is again out of registration with said outlet; a manually releasable latch for holding said plate in a position wherein its opening is out of registration with said outlet.

6. Mechanism for withdrawing samples of a mass of grain or the like passing through a discharge spout, comprising: a chute for the samples having an inlet from the spout; a valve normally closing the spout and the chute and openable to permit the mass of the grain to pass outwardly through the spout and a less amount of the grain as samples thereof to simultaneously pass outwardly through the chute; a conveyor for feeding the samples through the chute; a spring for operating the conveyor; connections between the valve and the spring for tensioning the spring by the opening movement of the Valve.

FERRY F. ROSEWARNE.

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