US2208167A - Sampling device - Google Patents

Description

July 16, 1940. J. SHULAR SAMPLING DEVICE 5 Sheets-Sheet 1 Filed April 11, 1958 c]bseph L, 6/7060:

IN V EN TOR.

A TTORNEYS.

y 6, 1940. J. L. SHULAR SAMPLING DEVICE Filed April 11, 1938 5 Sheets-Sheet 2 dbsep/v L 6/2 u/ar:

IN VEN TOR.

A TTORNEYS.

y 6, 1940. J. SHULAR 2,208,167

SAMPLING DEVICE Filed April 11, 1938 5 Sheets-Sheet 4 JUN t /6 IN VEN TOR.

A TTORNEYS.

July 16, 1940. SHULAR 2,208,167

SAMPLING DEVICE Filed April '11, 1938 5 Sheets-Shet 5 cfoseph L.5i2u Zar:

, INVENTOR.

A TTORNEYS.

' 10, terial will be assured. i narrow off towards the. lower ends thereof. 1 N

Patented July16d94 2,2@8,lfi7.f

UNITED' STATES QFFICE c i" 2,208,167 3 SAMPLING Joseph Shular, Easta Stone' Gap, vai Application April 11, 19ssjsria1 No. 201,491" v 4 Claims. 101.3 21) This invention relates to devices known as the reference character 5,, the general contour samplers or rifflers, designed forfautomatically of the body portion being similar to the contaking samples of free flowing materials such as struction ofthe usual hopper bottom bin. coal or the like. I v jI 'he-upper'surface ,of' the, body portion ""is 5 Animportant object of the invention is to inelined, and is normally closed by means of the 5 provide a device of this character which will hinged closure 6. Arranged in spaced relation thoroughly riflie and separate a comparatively with the closure .6, is the riiiler table 1, which small quantity of the material from the flowing is formed with a plurality ofrows of spaced open} mass, to the end that a true sample ofxthe m'aings 8 which arewide at their upper edges, and

Another object ofthe invention is to provide Partitions indicated by the reference char a rifller which is automatic in its operation, and aster '9; extend along the upper surface of the one which may be readily operated to obtain table 1', and dividethe surface. of the table into a sample of the material at any time direct from a plurality of equal spaces, transversely .ofthe the bins in which the material is held or stored. table 1.. As clearly shown by Figure Z of the.

Still another object of the invention isto prodrawings, these partitions 9 extend .over the vide a device of this character which may be openings 8 dividing the openings, so that matereadily and easily adjusted for use in obtaining rial directed to the table at opposite sides of the samples of various grades of material. partitions 9, may pass through the openings 8.

With the foregoing and other objects in view, The partitions 9 are arranged, in such a way 20 which will appear as the description proceeds, the that the openings on opposite sides thereof are invention resides in the combination .and ar disposed in staggered relation with respect to rangement of parts and in the details of construceach other. The rifiler plates are indicated by tion hereinafter described and claimed, it being the reference character l0 and extend upwardly understood that changes in the precise embodi from the riffler table I, a distance equal with 5 mentof the invention herein described, may be the height of the partitions 9, the plates, l0 ,ex-

made Within the scope of what is'claimed, with tending along the. edges of the spaced ,openings out departing from the invention. i 8, and secured to the :riiiler table has by welding, Referring to the drawings: throughout portions of the lengths of the rifiler Figure 1 is a side elevational view of a riflier plates ill. Offset portions indicated at H are- 30 constructed in accordance with the invention. formed in the plates I0, and provide bafile sur- Figure 2 is a plan view of one section of the 1 faces, against which the flowing material strikes, riiiler, the hinged coiver thereof having been retarding the movement of theflowing material. broken away to illustrate the interior construc-, These. oiTset portions II also act to direct the tion of the riffier. I material laterally into. the passageways. between 35 Figure 3 is a section view taken on line 33 of the rifiler plates. Itmight be stated that these Figure 2. i riflier plates l0 merely rest on'the table I, from Figure 4 is a sectional view taken on line 4-4 pointsadjacent to the offset portions H, thereof,

of Figure 2. 1 to the free ends of the plates, thereby providing 40 Figure 5 is an elevational view illustrating adjustable end portions, which may be readily 40' the grinding means and substantially small rifiier, bent laterally to vary the flare of the free ends of forming a part thereof. q the rifiler plates, adapting the device for ,usefin Figure 6 is a perspective view illustrating a sampling various types of material. Certain of portion of the riffier table, and illustrating the the plates 10 extendinto'the body portion 5, propartitions or rifiier plates, supported thereon. viding baffles. e i 1 Figure 7 is a sectional view taken on line 1-4 Due to this construction, itiwill be seen that beof Figure 2. cause these riffier plates it are inclined towards Figure 8 is a fragmental sectional view illusthe partitions-9;;the free end of one rifiler plate trating the opening in the bottom of the conveyor lies, in spaced relation with theadjacent end housing. of the riffier plate associated therewith, providing 50 Figure, 9 is a sectional detail viewillustrating passageways between rifller plates, to direct mathe adjusting means whereby the rifilertable is terial into the openings 8. t 1 I adjusted vertically. The reference character l2 designates the Referring to the drawings in detail, the rifller hopper of the riifier, the hopper, being provided comprises a body portion indicated generally by with openings l3 andpartitions [4 arranged ad- 55 jacent to the openings I3 whereby material passing between partitionsof the adjacent edges of the openings, will be directed through the openings 13, while a portion of the material from which the sample is taken, passes between partitions of the adjacent openings, and will be directed through openings formed in the upper end of the uppermost bafile plate I5 that extends into the hopper I2, from where the material moves over the rifiier table "l, to' contact with the rifiler plates I0 and be directed through the openings 8, as the material flows to the lower end of the rifiler table I. Ba'ffie plates indicated at I5 are arranged within the body portion .5, directly under the r'iffler table 1, and actto direct the material towards the bottomof the body portion, where the material passes through the discharge opening Iii. The portionof the uppermost baflie plate i I5 that extends into the hopper I2, is formed with openings through which the materialunder treatment passes to the riffle table.

A bafile member indicated by the reference character I! is .alsoarranged within the body portion, and is provided with an upper inclined wall, I8, over which the material passes, which enters the body portion through the lowermost openings}? of the'rililer table I.

' "Extending inwardly from the sidewalls of the body-portion 5, are angle bars I9" that provide a support for the table 1, which is hingedly con nectedto the bafiie plate I5 that extends into the hopper I2, as clearly shown by Figure 4" of the drawings.

Nuts 20 are secured to the table '1, near the lower front edge thereof, and at points directly over the angle bars IS, the table I being formed with openings registering with, the

threaded openings of the nuts 23. Bolts 2I ex-' tend through the nuts 20 and have their inner ends resting on the angle bars I9, so that when the bolts 2! are rotated, the table I, together with the rifiler plates I0 supported thereon, will be adjusted verticallyto any desired pitch depending on the flow of the material to be sampled, and

, upper and lower surfaces or walls of the endless conveyor housing, the spaces between the may be moved to a positionas indicated in dotted lines in Figure .4 of the drawings. While the 'dotted line'position shownby Figure 4 of the drawings, indicates the limit of the adjustment of the table I, it is to be understood that the table I may be adjusted to various points between the dotted line position and full line position as shown by Figure 4 of the drawings, to adapt the device for use in treating various types of material. The body portion is supported on the beams 22 by means of the plates 23, that rest on the beams 22, as shown by Figure l of the drawings. Plates 23 are spaced apart, and form the plates 23 being closed by the side plates 24.

The reference character 25 designates the upper section of the endless conveyor housing, and rests on the upper plate 23 of the lower section of the endless conveyor housing, throughout a portion of the length of the conveyor 25. One end of the conveyor housing 25 extends upwardly as shown by Figure l of the drawings, where it erates over the roller 29 at one end of the conveyor housing, from where it passes over the roller 30 disposed adjacent to the upper end of the vertical section of the conveyor housing, from where the, endless conveyor operates over the roller 3i mounted at one end of the lower sec- 'tion of the conveyor housing.

the. conveyor housing extends through the body portion 5, at a point adjacent As shown,

to the lower front edged the riffier table I, to receive material from the table I.

Formed in the bottom of the lower section of 'the endless conveyor housingQis an opening 32 so that Surplus material may pass from the conriedover the opening, will fall through the opening and bedischarged into the body portion '5, from where the material will pass from the body portion through the'opening It. In this way, it I will be seen that after the sample has been removed, the remaining portion of the sample will be returned to the body portion. As material is fed into the upper section of the conveyor housing, the material will be carried upwardly to the upper end of. the conveyor housing, where it will be deposited in the chute 34 that in turn directs the material'into the grinding machine 35 from where the material passes into the riflier 36 embodying the spaced rifller plates 37 that are disposed at'opposite sides of the openings 38, the plates 3? being shown as converging towards the lower end of the rifiler 36. These rifiier plates 3'! direct the material laterally and cause the material to be directed to the openings 38 of the riflier 35. After the material passes through the riiiler 36, a portion of the material is deposited in the sample box 39 positioned at the discharge end of the riffier tit, as shown by Figure l of the drawings.

It will of course be understood that the material from which the sample is to be taken, is directed to the hopper I2 directly from the bins, in which the material is contained, and that by directing the material to the hopper I2, a sample may be readily and easily taken by separating a quantity of the material from the free flowing mass, to the end that a true sample may be obtained.

It might be further stated that the endless conveyor housing is closed throughout the length of the housing disposed within the body portion ii, by means of the hinged closure 40 that extends along the lower front edge of the body portion, the closure moving upwardly with the rifiler table '2, when an adjustment of the table 1' is necessary.

This closure also affords means whereby access may be had to the interior of the conveyor housing, should it become necessary to examine the conveyor or repair the same.

I claim:

l. A device for taking samples from free flowing material, comprising a body portion, an inclined riiiier table forming a part of the body porguarding the front and side edges of the openings, the rear edges of the openings being open to the line of flow of material passing over the table, said riffler plates of adjacent rows being arranged in staggered relation with respect to each other, providing passageways between the rows of rifiler plates, and said rifller plates adapted to divide the material directing a portion of the material through the openings and a portion of the material to the passageways between the rows of riflier plates, and means at the lower end of the table for carrying off the material discharged at the lower end of the table.

2. A device for taking samples from free flowing material, comprising a body portion, an inclined rifiler table forming a part of the body portion, transversely spaced partitions extending longitudinally of the table, said table having openings staggered with respect to each other and arranged on opposite sides of the partitions, rows of riiiier plates arranged adjacent to the openings, guarding the front and side edges of the openings, the rear edges of the openings being open to a line of flow of material passing over the table, said rifiier plates being secured to the rifile table throughout portions of their lengths, and the remaining portions of the riffler plates being free to swing laterally for adjusting the rifiier plates with respect to each other and providing irregular passageways between adjacent rows of rifiler plates, and means for receiving the material passing over the table.

3. A device for taking samples of free flowing materials, comprising a body portion, an inclined rifiier table forming a part of the body portion, spaced partitions arranged on the table, said table having openings disposed adjacent to the partitions, rifiier plates positioned adjacent to the openings and closing the side and front .end walls of said openings, the riffler plates being staggered with respect to each other and providing passageways between the free ends of the riiiler plates through which material passes to the lower end of the table, a conveyor housing at the lower end of the table, an endless conveyor operating within the housing and onto which material passes from the table, a plate dividing the upper and lower flights of the conveyor, and said conveyor housing having an opening through which material may pass from the housing.

4. A device for taking samples of free flowing materials, comprising a body portion, an inclined riflier table forming a part of the body portion, spaced partitions arranged on the table, said table having openings disposed in staggered relation with respect to each other and located at opposite sides of said partitions, riiiier plates positioned adjacentto the openings and closing the side and front walls of the openings, said riifler plates having offset portions for directing material towards the passageways between the rifiler plates, the free ends of the rifiler plates being adjustable laterally within the line of flow of material passing through the passageways, separating portions of the material and directing the material into the openings, and means for car rying oil the material deposited at the lower end of the table.

JOSEPH L. SHULAR.

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