US2889709A - Ore sampling machine - Google Patents

Ore sampling machine Download PDF

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Publication number
US2889709A
US2889709A US594262A US59426256A US2889709A US 2889709 A US2889709 A US 2889709A US 594262 A US594262 A US 594262A US 59426256 A US59426256 A US 59426256A US 2889709 A US2889709 A US 2889709A
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US
United States
Prior art keywords
belt
ore
car
scoop
sampling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US594262A
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English (en)
Inventor
Blyth Andrew Francis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MARCONA MINING Co
Original Assignee
MARCONA MINING Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MARCONA MINING Co filed Critical MARCONA MINING Co
Priority to US594262A priority Critical patent/US2889709A/en
Priority to DEM34570A priority patent/DE1125409B/de
Priority to FR1177962D priority patent/FR1177962A/fr
Application granted granted Critical
Publication of US2889709A publication Critical patent/US2889709A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/76—Fixed or adjustable ploughs or transverse scrapers
    • B65G47/766—Adjustable ploughs or transverse scrapers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials

Definitions

  • This invention relates generally to ore sampling devices and particularly to devices of this character which are adapted to be utilized in connection with collecting or removing quantities of materials from an endless conveyer of the belt type without stopping the progress of the conveyer.
  • a sampling may be taken when a predetermined quantity, as for example, a specific poundage or tonnage of material has been advanced by the belt or it may, for example, be taken every ten minutes.
  • a conveyer belt may. be stopped and the sample may be removed.
  • Another solution has been to provide twoconveyer belts and to take a sampling from the material as it flows over the end of one belt onto the; next. ⁇ This sampling is preferably done by moving a sampler or box of predetermined volume through the falling mass and here again, the sampling may be done either on a time basis or on a quantity basis depending upon the reason for, the sampling.
  • an object of this invention to provide an ore sampling device which may be utilized-in connection with a, single conveyer belt.
  • Figure 1 represents a plan view of a conveyer belt and ore sampling car incorporating my invention.
  • Figure 2 is a side elevational view of the device shown in Figure 1.
  • Figure 3 is an end elevation from the ore receiving hopper side of the device.
  • Figure 4 is a cross-sectional detail taken along the line 4-4 of Figure 1.
  • Figure 5 is a schematic view showing the belt engaging plate which is shown in position against the belt.
  • Figure 6 is a view similar to Figure 5 showing the belt engaging plate retracted in an out-of-belt engaging position.
  • Figure 7 is a side view of the belt engaging plate and ore hopper and ore chute in retracted position as illustrated in Figure 6.
  • Figure 8 is a side view of an ore conveyer belt showing the track layout upon which the ore'sampling car is adapted to operate.
  • my device is adapted to be used in connection with a conveyer belt 10 of the general type which is adapted to be supported by belt carrier rollers 11 which in turn are supported by side support members 12 and a suitable base frame assembly 13.
  • the belt '10 and the rollers 11 and'their supporting framework 12 and 13 are conventional and form no particular part of this invention other than, of course, to provide a suitable conveyer with which the ore sampling car may be utilized.
  • the belt 10 may be caused to be advanced by frictional engagement with a driving drum or pulley or a plurality of driving drums or pulleys, none of which form a part of this invention and none of'which are illustrated herein.
  • my ore sampling assem--, bly consists of acar 16 which is adapted to be moved along tracks 17 which are supportedin any suitable manner and consist of parallel rails 18 which are supported upon a framework 19.
  • the left hand' end (see Figure 8) of the tracks 17, and designated at 21', may be referred to as the rest and ore discharging section while the portion designated generallyat 22 may be termed the starting incline.
  • the portiondesignated generally at 23 may be termed the ore sampling Zone and the portion indicated generally at 24 maybe termed i the safety run-oif portion.
  • the car 16 starts fromitheposition 21 in responseto either man ual or automatiocontrol and usually dependent upon the quantity of ore which has been conveyed by the belt.
  • the car 16 is provided with a framework which consists genenerally of side rail assemblies 26 and a pair of transverse vertical frame members 27, which may be secured together iii any suitable way, as, for example, by welding.
  • the side frame members 26 generally overlie the parallel rails 18 and are provided with suitable bearings 28 which support short axles 29 and flanged wheels 31 which ride the rails 18 and permit the car 16 to be moved longitudinally along the rails.
  • the car 16 is adapted to be driven generally in the following manner.
  • a source of power such as an electric motor 32 is provided with a multiple pulley assembly 33 which drives the belts 34 which engage the pulley 36.
  • the pulley 36 is suitably keyed to a counter shaft 37 to the ends of which are secured sprockets 38.
  • the sprockets 38 engage the drive chains 39 and drive the sprockets 41 which are keyed to the shafts 29 and drive the wheels 31.
  • the motor 32 may either be an electric motor as indicated in the drawings or may be a small internal cornbustion engine. However, regardless of the source of energy, the motor should be reversible or should be provided with some reversing mechanism so that the car 16 may be driven in either direction along the tracks 17.
  • the control of the starting and stopping of the motor 32 and its driving or reversing the car may also be either manual or automatic.
  • the control In the event the control is manual it is apparent that an operator may ride the car 16 and may, by visually observing the condition of the device, start the motor 32, reverse the same, or otherwise operate the car.
  • certain stops may be positioned along the track 17 which serve to trip selective switches to open and close designated circuits, etc.
  • the specific means of controlling the motor 32 does not constitute a critical portion of this invention and it is only necessary, in order to secure proper working of my device, that the controls be simple and efiective and able to withstand substantial wear and tear and abuse.
  • the parallel vertical plates 27 which form a portion of the framework of the car are secured to the side frames 26 and are spaced from each other by lateral cross members 42.
  • the plate members 27 are each provided with a transverse groove 43 which forms a track for the ore discharge scoop as will more fully hereinafter be explained.
  • the grooves 43 are formed to generally conform to the lateral contour of the belt 10 which, as indicated particularly in Figure 3 is trough-like in cross section so that the body of ore or other material being carried thereby is generally retained in such a manner that it does not spill over the side edges of the belt 10.
  • the ore removing sweep or scoop assembly 44 consists generally of an articulated assembly.
  • the leading scoop-like member 46 consists of a pair of parallel side wing members and is used for separating or breaking up the keying of the ore. A plurality of tines, not shown, may be inserted therein for the purpose of further breaking up the keying of the ore.
  • the scoop-like member 46 is followed by a scoop-like member 47 in the form of a blade whose general contour is similar to a bulldozer blade and which is provided with side walls which generally lie within the confines of the scoop-like member 46.
  • a third scoop-like member 48 is adapted to engage the fines which remain on the belt and which are not scooped therefrom by the members 46 and '47.
  • the member 48 consists of parallel side plates and a plate 48a on the lower edge of plate 48a is mounted a wire brush member 49 which is adapted to engage the belt 10 and sweep the fines therefrom.
  • the construction of scoop-like member 48 and brush 49 is not critical but is shown in detail herein. It is apparent that, in order to obtain an accurate sampling, all of the material within a predetermined defined area on the belt must be removed from the belt.
  • the plate 48a is adapted to extend to within a fraction of an inch or so of the upper surface of the belt 10 and the wire brush 49 attached thereto is spring urged downwardly as shown in Figure 4 in such a manner that it engages the upper surface of the belt 10 and removes everything therefrom.
  • the blades of the scoop-like member 46, the side walls of the scoop 47 and the side plates of the member 48 prevent fall-in of ore into the sample and ensure that the sample taken is an accurate one. They also serve to prevent urging of one portion or another to the side of the scoop or sweep assembly 44.
  • v p p The depth of travel of the members 46, 47 and 48 is determined by the grooves 43. However it is apparent that if the assembly 44 were moved to the extreme right as indicated in Figures 2 and 4 and were then brought downwardly, the assembly 44 would engage the right hand side edge of the belt 10 (see Figures 2 and 4) and badly scuff the same.
  • the scoop assembly is actuated by a pair of chains 54 whose ends are secured to the cross members 51 of the scoop assembly 44.
  • the chains 54 are threaded over driving sprockets 56 which are mounted upon a shaft 57 which is operatively connected through sprockets 58 and chain 59 to a source of power 61 consisting of an electric motor.
  • This source of power like the motor 32, may either be electric or of the internal combustion type but it must also be reversible and may be automatically or manually controlled.
  • the scoop assembly 44 is passed through the ore from one side of the frame assembly 27 to the other.
  • the ore As the ore is urged from the belt 10 by the scoop assembly 44 it passes over a belt engaging plate 66 into a chute 67 and then in an ore receiving hopper 68 is supported from one of the side frame members 26 in any suitable manner and is adapted to be discharged by moving the swinging bottom 69, about the point 71 so that the contents of the hopper 68 may be discharged from the open bottom thereof.
  • the hopper 68 is rigidly supported by the side frame rail 70.
  • the belt engaging plate 66 and the chute 67 are movable.
  • the belt engaging edge 72 of the belt engaging plate 66 is provided with a lug 73 at each end which are adapted to overlie the belt 10 when the device is in belt engaging position. That edge of the member 66 remote from the belt engaging edge is hinged to the chute 67, and the member 66 and the member 67 are adapted to slide laterally as indicated generally in Figures 5, 6 and 7.
  • the member 66 is provided with a pair of coplanar rearwardly extending arms 74 each of which is provided with a slot 76.
  • the members 74 are adapted to slide upon a frame assembly 77 which is formed integrally with the side portion 26.
  • Bolts 78 extend upwardly from the member 77 through the slots 76 and guide the. members 66 and 67.
  • a pair of levers 79 pivoted at point 81 engage pins 82 came members 74 by a lost motion linkage.
  • Springs 83 normally urge the member 66 into belt engaging position as indicated.
  • roller 84 which is adapted to rotate upon a structure 86 which is rigidly secured to the underside of the chute 67.
  • the roller 84 is adapted to engage the cam track 87.
  • the eflfect of the springs 83 is to urge the member 66 into engagement with the belt 10.
  • the mounting of the plate 66 is such that both lateral and verticalvariations of the belt 10 are compensated for and the plate 66 constantly engagesthe belt 10 when roller 84 is not in engagement with the track 87.
  • the members 74 are provided with a pair of lugs 88 which are adapted to be engaged by the scoop assembly 44 when the same reaches the end of the sampling cycle, whereby the belt engaging plate 66 'Will become disengaged from the side ends of the belt 10.
  • the belt 10 be of the general type indicated, that is, that it be supported upon belt carrier rollers 11 which cause the belt to conform to a general trough-like contour as viewed in Figure 2.
  • the car 16 is positioned on the tracks 17 and the rails 18 generally at the position 21 indicated as the rest and ore discharging positions.
  • the car 16 then enters that portion 23 of the track 17 known as the ore sampling zone.
  • the springs 83 through the levers 79 urge the belt engaging member 66 from the position illustrated generally in Figure 6 to that illustrated in Figure 5, with the lugs 73 immediately overlying the edge of the belt 10 and the rollers 11. With the belt engaging plate 66 in this position it is apparent that ore may be passed from the belt 10 over the member 66 and onto the chute 67 without loss of ore between the member 66 and the belt 10.
  • the operator may then manually energize the motor 61 that causes the scoop assembly 44 to move to the left as viewed in Figure 2.
  • the scoop like members 46 and 47 tend to break up the keying of the ore and move the bulk of the ore to be removed for a sample from the belt 10 over the member 66 and onto the chute 67. Because of the fact however that the right hand side of the belt 10, as viewed in Figure 2, is not exactly parallel to the slot 43 the members 46 and 47 will not scuff the edge of the belt 10 but will tend to come down upon the same and engage it from above. Thus the wire brush assembly 49 will engage the top rather than As the member 48 and the" brush assembly 49 sweep across the belt they remove the side edge of the belt.
  • a sampling car In a machine for removing samples of material from a mass of material carried by a moving conveyer belt, a sampling car, means for supporting said car for travel of said car in the direction of movement of said belt, means for causing said car to travel at substantially the same speed as the speed of movement of said belt and in the same direction as said belt, and means carried by said car and driven transversely of the belt for removing samples of material from the belt while the belt and the car are travelling at substantially the same speeds.
  • a machine as in claim 1 together with a chute carried by said car and spillage preventing means carried by said car, one edge of said means being normally adjacent the entrance to said chute and the other edge of said means being adapted to engage one side edge of the belt to permit discharge of the sample taken from the belt into the chute and to prevent spillage of material between the belt and the chute.
  • a machine as in claim 2 together with means for maintaining the spillage preventing means in engagement with said belt during the time a sample is being removed from said belt and out of engagement with said belt when a sample is not being removed from said belt.
  • a machine as in claim 2 together with a hopper carried by said car, said hopper serving to receive the material discharged into said chute.
  • a machine as in claim 1 wherein the means for supporting the car consists of a track disposed adjacent the conveyer belt, an intermediate portion of said track permitting removal of samples from said belt by said car, and the end portions of said track being elevated with respect to the intermediate portion of the track to maintain said car out of engagement with said belt.
  • a sampling car means for causing said car to travel at substantially the same speed as the speed of movement of said belt and in the same direction as said belt, a scoop-like member carried by said car, means for moving said scoop-like member transversely over the belt to remove a sample from the belt While the belt and the car are travelling at substantially the same speeds.
  • scoop-like member includes means for preventing fall-in of material from the belt into the material selected-on the belt by the scoop-like member for the sample.
  • a sampling car means for causing said car to travel at substantially the same speed as the speed of movement of said belt and in the same direction as said belt, a scoop-like member carried by said car, andmeans for moving said scoop-like member transversely over the belt to remove a sample from the belt while the :belt and the car are travelling at substantially the same speeds, the contour or upper surface of the belt in cross-section being substantially concave, said scoop-like member being moved in a path which substantially follows the contour of the belt.
  • a sampling car meansforcausing said car to travel at substantially the same speed as the speed of movement of said belt and in the same direction as said belt, apair of scoop-like members carried by said car, and means for moving said scoop-like members transversely over the belt to remove a sample from the belt While the belt and the car are travelling at substantially the same speeds, the scoop-like members being arranged one behind the other, the forward scoop-like member serving to remove substantially all of the material required for the sample,
  • a machine as in claim 10 wherein the rear scooplike member includes brush-like elements which are adapted tos'weep across the belt to remove the remaining portion of the sample fromthe belt.
  • scoop-like members include means for preventing fall in of material from the belt into the material selected on the belt by the scoop-like members for the sample.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)
US594262A 1956-06-27 1956-06-27 Ore sampling machine Expired - Lifetime US2889709A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US594262A US2889709A (en) 1956-06-27 1956-06-27 Ore sampling machine
DEM34570A DE1125409B (de) 1956-06-27 1957-06-26 Vorrichtung zur Entnahme von Proben, insbesondere Erzproben, von einem laufenden Foerderband
FR1177962D FR1177962A (fr) 1956-06-27 1957-06-26 Dispositif d'échautillonnage de minerai

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US594262A US2889709A (en) 1956-06-27 1956-06-27 Ore sampling machine

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US2889709A true US2889709A (en) 1959-06-09

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US594262A Expired - Lifetime US2889709A (en) 1956-06-27 1956-06-27 Ore sampling machine

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US (1) US2889709A (fr)
DE (1) DE1125409B (fr)
FR (1) FR1177962A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280635A (en) * 1963-07-12 1966-10-25 Lorraine Houilleres Automatic sampler with scooping-wheel
US3487427A (en) * 1967-05-05 1969-12-30 D & P Minerals Inc Method and apparatus for sampling ore and the like
EP0187443A2 (fr) * 1985-01-02 1986-07-16 John Broaddus Long Dispositif de prise d'échantillons représentant une section du matériau sur une bande transporteuse
US4790196A (en) * 1987-09-03 1988-12-13 Gregory Gould Sampler of particulate material on a moving belt
US4796476A (en) * 1985-01-02 1989-01-10 Long John B Conveyor belt cross-stream sampling system and method
US4884462A (en) * 1985-01-02 1989-12-05 Long John B Conveyor belt cross-stream sampling system and method
US4919000A (en) * 1989-06-06 1990-04-24 Long John B Conveyor belt cross-stream sampling system and associated method
CN107144442A (zh) * 2017-06-30 2017-09-08 福建南方路面机械有限公司 皮带中部自动取样烘干装置
CN114590552A (zh) * 2020-12-04 2022-06-07 南京宝地梅山产城发展有限公司 一种漏矿小车智能放矿装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521545A (en) * 1923-02-17 1924-12-30 Kistler Wilbur Denio Sample machine
US2352204A (en) * 1940-12-31 1944-06-27 Jordan Thomas Automatic sample cutting machine
GB588766A (en) * 1944-10-05 1947-06-03 Allever Burton Seaborne Improved means for automatically sampling coal, grain or like granular materials
US2738679A (en) * 1952-07-18 1956-03-20 Walter T Senkowski Solids sampling apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE484324C (de) * 1929-10-14 Ind Akt Ges Abwurfvorrichtung fuer Foerderbaender
DE642569C (de) * 1937-03-09 Maschb Akt Ges Zu Zeitz Einrichtung zum UEberfuehren des Foerdergutes vom oberen Trum eines in vertikaler Ebene umlaufenden Foerderbandes auf das untere Trum
DE206161C (fr) * 1908-03-12
DE538002C (de) * 1929-10-04 1931-11-09 Mueller Hermann Vorrichtung zum Abstreichen des Gutes von stetig umlaufenden Foerderern
US2421938A (en) * 1944-06-13 1947-06-10 Adamson Stephens Mfg Co Materials sampler
DE934203C (de) * 1954-02-02 1955-10-13 Paul Bock Vorrichtung zur Entnahme von Proben

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521545A (en) * 1923-02-17 1924-12-30 Kistler Wilbur Denio Sample machine
US2352204A (en) * 1940-12-31 1944-06-27 Jordan Thomas Automatic sample cutting machine
GB588766A (en) * 1944-10-05 1947-06-03 Allever Burton Seaborne Improved means for automatically sampling coal, grain or like granular materials
US2738679A (en) * 1952-07-18 1956-03-20 Walter T Senkowski Solids sampling apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280635A (en) * 1963-07-12 1966-10-25 Lorraine Houilleres Automatic sampler with scooping-wheel
US3487427A (en) * 1967-05-05 1969-12-30 D & P Minerals Inc Method and apparatus for sampling ore and the like
EP0187443A2 (fr) * 1985-01-02 1986-07-16 John Broaddus Long Dispositif de prise d'échantillons représentant une section du matériau sur une bande transporteuse
US4619149A (en) * 1985-01-02 1986-10-28 Long John B Belt conveyor cross-stream sampling system
EP0187443A3 (fr) * 1985-01-02 1988-01-07 John Broaddus Long Dispositif de prise d'échantillons représentant une section du matériau sur une bande transporteuse
US4796476A (en) * 1985-01-02 1989-01-10 Long John B Conveyor belt cross-stream sampling system and method
US4884462A (en) * 1985-01-02 1989-12-05 Long John B Conveyor belt cross-stream sampling system and method
US4790196A (en) * 1987-09-03 1988-12-13 Gregory Gould Sampler of particulate material on a moving belt
US4919000A (en) * 1989-06-06 1990-04-24 Long John B Conveyor belt cross-stream sampling system and associated method
CN107144442A (zh) * 2017-06-30 2017-09-08 福建南方路面机械有限公司 皮带中部自动取样烘干装置
CN114590552A (zh) * 2020-12-04 2022-06-07 南京宝地梅山产城发展有限公司 一种漏矿小车智能放矿装置
CN114590552B (zh) * 2020-12-04 2023-05-12 南京宝地梅山产城发展有限公司 一种漏矿小车智能放矿装置

Also Published As

Publication number Publication date
DE1125409B (de) 1962-03-15
FR1177962A (fr) 1959-04-30

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