US1944392A - Sampling device - Google Patents

Description

Jan 23, 1934- s. E. ATKNs Er AL 4 1,944,392

SAMPLI NG DEVI CE Filed Aug. 24, 1931 Patented Jan. 23, 1934 UNITED STATES PATENT OFFICE;fl- -l 1,944,392 sAMPLNG DEVICE Samuel E. Atkins, Duluth, Minn., and Theodore Carlson, Crystal Falls, Mich. i

Application ugust 24, 1931. Serial No. 558,876`

l3 Claims. (CI. 83-15) This invention relatesN to sampling devices and to one particularly adapted for use in sampling granular material such as iron ore while in maritime transit.

It is well known that iron ore in comparatively fine granular form is transported by boat for considerable distances, and when reaching destination it iszvery desrable to knowas soon as possible the quality and characteristics of the ore within the 191 boat or vessel.

Furthermore it is known to be very inconvenient and expensive to get samples of the iron ore while being unloaded from the vessel, and the principal object of our present invention is to overcome these characteristics of the sampling process.

;It' will also become apparent that the invention is applicable to the sampling of ore or other granular material for instance in a stock pile or bin, as the case may be. :Q'll Other objects and advantages of the invention will appear in the following description thereof.

Referring now to the accompanying drawing forming part of this application, and wherein like reference characters indicate vlike parts:

ffl Figure 1 is a thwartship section of a marine vessel with granular material such as iron ore or the like in the hold thereof;

Figure 2 is an enlarged central sectional view of the upper end of the sampling tube or pipe,

'; showing one convenient way of manipulating same.

Figure 3 is a still further enlarged cross-section of the tube on the line 3 3, Figure 2.

1 represents the hollow ore transporting vessel "351 provided with a plurality of thwartship hatches, the upstanding coaming of which is indicated at 2. Preferably centrally of one of the fore or aft portions of the hatch coaming, I have illustrated one of the sampling tubes 3 as installed, such in- 461 stallation comprising a simple bracket 4 extending inwardly of the hatch coaming and through which the tube 3 is freely adjustable; in fact this bracket may be a quite loose fit so as to not interfere with the raising or lowering of the tube. As 451 many as desired of these tubes may be installed in a vessel, and may be positioned at the ends of the hatch instead of the forward or after side thereof. It is apparent that a step, or bit of plate, indicated at 5, may be installed upon the 501' bottom of the hold of the vessel into which the lower end of the tube may be stepped, if desired, for holding same in position though this is not considered essential in carrying out the invention.

In practice it is contemplated that these tubes will be installed as desired within the hold so as to ultimately remove therefrom samples of the ore or other granular material carried in. the vessel and which has surrounded the tube when being loaded. i i

Furthermore our improved sampling tube ,is @Q novel in that the apertures, indicated at 6, through the walls of the tube are so shaped as to feed the granular material therethrough into the tube when the latter is rotated clockwise so that. if ;it is found at the delivery terminal of the cargo @5, that the tube is not full, or irrespective of such knowledge, the tube may be turned one or two revolutions to the right which will insure its being filled with the granular material before being lifted from the hold. To accomplish such, the mj preferred construction of apertures, as shown in Figure 3, indicates the feeding wall 7 of the aperture as being a straight line continuation tangentially of the inner circumferential wall of the tube, while the opposite wall of the aperture is 25, preferably parallel therewith, so as to not restrict the intake of the material and to prevent as much as possible the falling therefrom when the tube is being removed from the pile or bulk of the material. If desired the lower wall of each apergo, ture may be slightly bevelled and flared outwardly as shown at 8, Figure 2, and the innermost lip of the upper wall as at 9 slightly beveled and flared inwardly to likewise function, or in other words insure as nearly as possible a full load of 35, the material being sampled within the tube when the latter is removed.

As a means for manipulating the tube we have lllustrated a cap 9' screw-threadedly adjustable thereupon, said cap being provided with an axial QQ, extension 10, polygonal in shape upon which the enlarged head 11 of the hand-wrench may be mounted for turning the tube. The shank of the wrench in indicated at 12 and may be of any desired length to reach well above the top of the 9.5, hatch coaming to afford ample room for operating the crank 13' in so turning the pipe, and making as light an instrumentality for this purpose as possible, as it must be carried from place to place in manipulating the tubes. Furthermore when the cap portion is in position on the tube, it acts as a closure for the upper end of same and as a stop beneath which and above the bracket 4 a pair of grappling irons may be placed if so desired for removing the tube by pulling up in any desired manner upon the irons. Or a hand spike or lever 13, novel in form, as it is offset centrally as at 14 to mount the upper edge of the hatch coaming with the handle end externally of the coaming and the opposite end WX internally of the coaming and operable in a plane parallel with the coaming, there being a short chain indicated at 15 looped about the pipe and the operation of the hand spike as a lever employed in raising the tube; again affording a simple, light instrumentality for removing the tubes.

From the foregoing it is evident that we have devised a simple means whereby specimens or samples of the material with Which the boat is loaded will, by gravity and vibration, the latter particularly during the time of transportation, fill that portion of the sampling tube within the body of material, so that it may be quickly removed upon the arrival of the vessel at its destination.

It will also be obvious that the sampling tube may be made in separable sections, preferably with telescopic joints as illustrated in Figure 2 so that if only the lower portion of the tube is essential for testing of a specific load or volume of material, the tube may be readily separated when raised for convenience in handling, or when the depth of material is predetermined a solid shank or rod may be used in the upper portion of the tube for manipulating same.

Having thus described our invention, what we claim and desire to secure by Letters Patent, is:

1. In a rotatable sampling machine the combination of a single tubular member provided with a plu'ality of spaced ports out of alinement both circumferentially and longitudinally of the tube, the integral leading edges of the wall of the tube defining the ports being fiared outwardly and thinned to scoop and guide thru the ports the material to be sampled.

2. In a rotatable sampling machine the combination of a single tubular member, a bracket to be Vattached to a support to hold the tube in operative position, a plurality of spaced ports thru the wall of the tube out of alinement circumferentially and longitudinally of the tube, the integral leading edges of the walls defining the ports being fiared outwardly to scoop and guide thru means to rotate the tube.

3. The combination in a rotatable sampling machine to be placed in the hold of a boat, a tube, a bracket attached to a support, a base centering bearing fixed to the floor of the boat, a plurality of spaced ports thru the wall of the tube out of alinement circumferentially and longitutinally of the tube, the leading edges of the walls defining the ports being fiared outwardly to scoop and guide thru the ports the material to be sampled, and means to rotate the tube.

SAMUEL E. ATKINS. THEODORE CARLSON.

Parent Ne. 1,944,392.

CERTEFICATE 0F (1()RIU Y I`IONl January 23, 1934.

'SAMUEL E. ATK'I'NS," ET AL.

it is' hereby certified that errer appears in :he printed speeifieatien of e above numrered patent requirifag cerrectei as fellows: Page 2, line 9%, claim 2, after "thru" inser the Werds the paris the material te foe samped, and; and :har he said Letters Patent should be read with his cor'ectimx herein that the same may cenform to Ihe record of the case in the Patent )fiee.

Signed and sealed this 6th day of March, A. D. 1934.

F. M. Hopkins Acting lemmissiener of kwenta,

(Seal)

Images