US3730364A - Apparatus for charging samples to analyzing apparatus - Google Patents

Apparatus for charging samples to analyzing apparatus Download PDF

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Publication number
US3730364A
US3730364A US00140347A US3730364DA US3730364A US 3730364 A US3730364 A US 3730364A US 00140347 A US00140347 A US 00140347A US 3730364D A US3730364D A US 3730364DA US 3730364 A US3730364 A US 3730364A
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United States
Prior art keywords
tray
trays
analyzing apparatus
accordance
analyzing
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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
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US00140347A
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English (en)
Inventor
T Nakamura
H Koide
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Mitsubishi Kasei Corp
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Mitsubishi Kasei Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00178—Special arrangements of analysers
    • G01N2035/00188—Special arrangements of analysers the analyte being in the solid state
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • G01N2035/0401—Sample carriers, cuvettes or reaction vessels
    • G01N2035/0412—Block or rack elements with a single row of samples
    • G01N2035/0417—Block or rack elements with a single row of samples forming an endless chain in a vertical plane
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system
    • G01N2035/046—General conveyor features
    • G01N2035/0465—Loading or unloading the conveyor

Definitions

  • ABSTRACT An apparatus for charging samples to an analyzing apparatus in a prescribed time sequence having a conveyor for sequentially moving a series of tray receivers into a charging position relative to the analyzing apparatus, a reciprocable charging rod for moving a tray containing a sample from its respective tray receiver on the conveyor into the analyzing apparatus and having a hook thereon for removing the tray from the analyzing apparatus following analysis, and a device for unloading the residue of the analysis from the tray into a collecting box.
  • This invention relates to an apparatus for charging samples, and more particularly, this invention relates to an apparatus for sequentially charging samples to an analyzing apparatus.
  • an apparatus for sequentially charging samples to an analyzing apparatus which comprises means for setting a tray by turning a conveyor having a series of tray receivers with a time sequence, means for inserting a tray containing a sample from the conveyor into an analyzing apparatus, and means for returning the tray from the analyzing apparatus after the analysis, each tray containing the sample being inserted and returned by a sample charging rod in each cycle of operation.
  • a tray can be withdrawn after returning from the analyzing apparatus.
  • Another feature is that the tray can be returned on the tray receiver of the conveyor.
  • FIG. l is a plan view illustrating an apparatus for charging samples formed in accordance with this invention.
  • FIG. 2 is a front elevational view of the apparatus shown in FIG. 1;
  • FIG. 3 is a side view of the apparatus shown in FIG. 1;
  • FIG. 4 is a schematic view illustrating an embodiment having provision for returning a tray from an analyzing apparatus
  • FIG. 5 is a enlargement of a plan view of one embodiment of the construction of sample charging apparatus
  • FIG. 6 is a schematic side view of one embodiment of a sample withdrawing apparatus
  • FIG. 7 is a plan view of another embodiment of a sample charging apparatus constructed according to the invention.
  • FIG. 8 is an enlargement of a portion of the sample charging apparatus shown in FIG. 7.
  • a conveyor 1 for sequentially moving samples to a predetermined position has a series of tray receivers 1' and a plurality of trays 2 respectively received therein for holding samples.
  • a reciprocating sample charging rod 3 has a hook 5 disposed at one end thereof for holding a sample tray, being actuated by an operating rod 4.
  • the charging rod 3 is actuated by a bar 8 through a turning shaft 6, 6' for operating the hook 5 and a solenoid 7 for actuating the operating rod 4.
  • a spring 9 positioned on the end of the operating rod 4 opposite the hook is held by a spring pawl 10 and is operative to normally maintain the hook in a raised position, as shown in FIG. 2.
  • the sample charging rod 3 is reciprocably moved by a driving axle 11 through a wire 12, which is connected with a wiredrum 11, the driving axle 11 being operatively connected with a motor 13 and each of a set of limit switches 14, 15, 16 and 17, and has a rod 17 for actuating these limit switches during its reciprocating movement.
  • a tray 2 having an exhaust material therein after an analysis has been completed is received in a tray collecting box 18 when the tray 2 is transferred to a traywithdrawing plate 19.
  • the sample is analyzed in an analyzing apparatus 20, such as a calorimeter.
  • FIG. 5 which shows one embodiment of the sample charging apparatus
  • a column drum 21 having nails or projecting spikes 24 moves to transfer the trays 2 one by one, the drum being freely rotated when released by a stopper 22 actuated by a solenoid 23.
  • ratchet wheel 25 which is contacted by a nail 24 and is rotatably jointed on its axle with an arm 26 having a pawl 27 secured thereto.
  • the arm 26 is turned by the operation of a driving solenoid 28 pivotally connected at one end of the arm26, so that one ratchet is gained by the pawl 27.
  • a balance weight 29 is secured to the free end of the arm 26 and a limit switch 30 and another limit switch 31 are positioned on opposite sides of the path of travel of the arm for controlling the operation thereof, as will be set forth hereinbelow.
  • FIG. 6 a tray withdrawing apparatus is illustrated, there being a tray-withdrawing plate 19 for the box 18 being operated by a solenoid 32 which pivotally drops the tray-withdrawing plate 19 connected to the axle 33 of the solenoid about a fulcrum 34.
  • a detecting projection lever 35 detects the withdrawal of a tray from the slanting plate 19, a limit switch 36 for resetting a new sample being actuated by being contacted by the tray as it drops into the box 18.
  • a suitable number of trays 2 holding the samples are received on the tray receivers 1' of the sample charging conveyor 1.
  • a starting switch not shown, is closed, the sample-charging apparatus is operated to move a tray 2 holding a sample in front of the sample charging rod 3.
  • the motor 13 then operates to run the driving axle 11, so that the wire 12 is wound or moved to progress the sample-charging rod 3 and to feed the tray 2 into the analyzing apparatus, passing through the plate of the box 18.
  • the motor 13 is reversely operated so that the sample-charging rod 3 is returned back to its original position and is stopped when the projection 17' contacts the limit switch 17.
  • the limit switches 15 and 16 are not actuated, even when contacted by the projection 17.
  • the tray 2 holding the sample may be kept in the analyzing apparatus 20, which may be, for example, a calorimeter, for a predetermined period of time as required for the analysis.
  • the motor 13 again may be operated to further progress the sample-charging rod 3.
  • the solenoid 7 connected to the rear end of the rod 3 is actuated, as shown in FIG. 4, thereby compressing the spring 9 by moving the bar 8 thereagainst, thus causing the hook to be lowered by moving the operating rod 4 in a leftward direction.
  • the hook 5 drops into the tray 2 being kept in the analyzing apparatus 20 after the analysis and the tray 2 having the hook hung therein is returned by returning the rod 3 by reversely driving the motor 13.
  • the solenoid 32 is actuated toslant the tray-withdrawing plate 19, as shown in FIG.
  • the limit switch may be used for transferring the tray 2 holding a sample in front of the analyzing apparatus, such as in a preheating zone, not shown, without completely inserting the tray 2 into apparatus 20.
  • the limit switch actuating projection 17' contacts limit switch 15, therefore the limit switch 15 is operative to reversely drive the motor 13.
  • limit switch 15 is generally set to be inactive in the usual test, and is used only for such twostepoperations of analysis.
  • the driving solenoid 28 When the starting switch is closed, the driving solenoid 28 is actuated to turn the arm 26 through an arcuate path, as shown in the dotted line, to thereby contact the limit switch 31, causing actuation thereof for stopping the operation of solenoid 28 and simultaneously to actuate the solenoid 23 for declutching the stopper 22 from the column drum 21. Arm 26 is thus returned to its original lowermost position by the balance weight 29, turning in one frame, the ratchet wheel 25 through the pawl 27.
  • the next succeeding tray 2 on the tray receiver of the conveyor 1 is set by turning the conveyor 1 through one frame in the left direction.
  • the switch 30 is actuated to stop the operation of the solenoid 23 and to thereby engage the stopper 22 with the column drum 21.
  • a switching circuit can be used for switching the operation of the limit switches.
  • Various types of samples can be charged by the apparatus of this invention for analyzing them, including solid samples such as powder and pellets, paste samples and liquid samples.
  • the sample charging apparatus of this invention obviously can be employed with various types of analyzing apparatus, depending upon the purpose of the test.
  • the shape of the tray can be selected according to the particular analyzing apparatus. It is even possible to join the tray and the charging rod by an electromagnetic contactor. Some iron piece may be molded on the edge of the tray in such cases for joining it to a rod having an electromagnetic controller.
  • the reciprocating sample charging rod can be provided with a pinch or a hook for holding the tray, and the tray can be provided with a supporter for the charging rod hook.
  • the tray-collecting box can be provided at the front end of the analyzing apparatus in line with the charging rod.
  • the sample can be held on the tray by an automaticweighting apparatus, as well as a hand-weighting.
  • the conveyor should be intermittently turned, depending upon the period of analysis.
  • the tray After being returned from the analyzing apparatus, the tray may be reused following cleaning.
  • the sequential movement of the conveyor also can be accomplished through an electric motor connected to a timer or a pendulum, however, the conveyor should be stoppable during the analysis.
  • a heater for drying, a heater for gas generation, a furnace for ignition, and an electrical meter, an optical meter or a weighting meter also are included in the analyzing apparatus.
  • One typical analyzing apparatus is an S0 gas generator, for coal, wherein the generated S0 gas is measured by a permanganate method.
  • the analyzing apparatus is not limited to such examples.
  • FIGS. 7 and 8 Another embodiment of this invention is shown in FIGS. 7 and 8, wherein a tray 39, a tray receiver 38 and a box 40 are different from the corresponding elements of the embodiment shown in FIG. 5.
  • each tray 39 is returned to its tray receiver 38 after an analysis, and the tray 39 is then held upside down on tray receiver 38 as the conveyor 1 progresses for removing ash of the sample therefrom dumping it into the box 40.
  • opposite edges of the tray receiver 38 of the conveyor 1 are inwardly bent to make guides and a groove is provided on each side of the trays 39 for sliding the guides of the tray receivers 38 therewithin for connecting the grooves with the guides.
  • the tray 39 is held on the tray receiver 38 when the conveyor 1 is turned to dispose the tray in an upside-down state.
  • the tray 39 can be freely moved in the direction of the groove so that the tray 39 can be inserted into the analyzing apparatus by the reciprocating sample charging rod 3, which removes it from the tray receiver 39.
  • the tray 39 having the ash of the sample therein is returned by the charging rod 3 to be reconnected with the tray receiver 38. Then, without withdrawing the tray 39 from the tray receiver in a tray collecting box, such as box 18 in the former embodiment, the tray 39 may be readied for reuse after turning it on the conveyor 1 to naturally deposit the ash 41 of sample therefrom into the box 40. In order to fully insure complete removal of the ash from the tray 39, a brush or air injection may be used.
  • the resetting can be accomplished by using the limit switch 17, as in the former embodiment.
  • the charging rod 3 can be operated by using a rack and pinion jack instead of the wire 12, if desired.
  • An apparatus for sequentially charging samples to an analyzing apparatus for analysis comprising:
  • conveyor means having a series of tray receivers for positioning trays in predetermined time sequence relative to said analyzing apparatus;
  • said insert ing and removing means sequentially inserts at least one of said trays into said analyzing apparatus, then is withdrawn from said analyzing apparatus leaving said at least one of said trays therein, and then is reinserted into said analyzing analyzing apparatus.
  • An apparatus in accordance with claim 2 further comprising timing means for controlling the operation of said sample charging rod during an analysis.
  • sample-charging rod is operated by a movable endless wire driven by a motor controlled by limit switches.
  • An apparatus in accordance with claim 13 further comprising a column drum for turning said conveyor means and a stopper for declutching said column drum to prevent operation of said drum.

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Sampling And Sample Adjustment (AREA)
US00140347A 1971-04-08 1971-05-05 Apparatus for charging samples to analyzing apparatus Expired - Lifetime US3730364A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19712117341 DE2117341B2 (de) 1971-04-08 1971-04-08 Vorrichtung zum aufeinanderfolgenden beschicken eines analysengeraets mit einer reihe von proben in probenschalen
FR7114160A FR2134829A5 (fr) 1971-04-08 1971-04-21
US14034771A 1971-05-05 1971-05-05

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US3730364A true US3730364A (en) 1973-05-01

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US (1) US3730364A (fr)
DE (1) DE2117341B2 (fr)
FR (1) FR2134829A5 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991619A (en) * 1973-11-28 1976-11-16 Monsanto Chemicals Limited Apparatus for measuring specific gravity
US4049134A (en) * 1976-02-02 1977-09-20 The Perkin-Elmer Corporation Movable ladle in a pressurized conduct for transporting specimens to a combustion chamber
EP0056316A2 (fr) * 1981-01-09 1982-07-21 EASTMAN KODAK COMPANY (a New Jersey corporation) Dispositif pour analyser un élément de test par balayage
US4565480A (en) * 1982-09-07 1986-01-21 Burgmaster - Houdaille, Inc. Carousel pallet shuttle
EP0193385A2 (fr) * 1985-02-27 1986-09-03 Sherwood Medical Company Procédé et dispositif d'analyse microbiologique automatique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038078A (en) * 1959-02-13 1962-06-05 Walter P Kern Automatic control for programming sample changing in radiation detecting system
US3257009A (en) * 1963-04-15 1966-06-21 Packard Instrument Co Inc Apparatus with vertical and lateral movable means for handling groups of radioactivesamples
US3498107A (en) * 1968-04-23 1970-03-03 Res Assistants Corp Automatic sample introduction system for gas analytical chromatographs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3038078A (en) * 1959-02-13 1962-06-05 Walter P Kern Automatic control for programming sample changing in radiation detecting system
US3257009A (en) * 1963-04-15 1966-06-21 Packard Instrument Co Inc Apparatus with vertical and lateral movable means for handling groups of radioactivesamples
US3498107A (en) * 1968-04-23 1970-03-03 Res Assistants Corp Automatic sample introduction system for gas analytical chromatographs

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991619A (en) * 1973-11-28 1976-11-16 Monsanto Chemicals Limited Apparatus for measuring specific gravity
US4049134A (en) * 1976-02-02 1977-09-20 The Perkin-Elmer Corporation Movable ladle in a pressurized conduct for transporting specimens to a combustion chamber
EP0056316A2 (fr) * 1981-01-09 1982-07-21 EASTMAN KODAK COMPANY (a New Jersey corporation) Dispositif pour analyser un élément de test par balayage
EP0056316A3 (en) * 1981-01-09 1983-05-25 Eastman Kodak Company Apparatus for scanning a test element
US4565480A (en) * 1982-09-07 1986-01-21 Burgmaster - Houdaille, Inc. Carousel pallet shuttle
EP0193385A2 (fr) * 1985-02-27 1986-09-03 Sherwood Medical Company Procédé et dispositif d'analyse microbiologique automatique
EP0193385A3 (en) * 1985-02-27 1988-06-08 Sherwood Medical Company Automated microbiological testing appparatus and method

Also Published As

Publication number Publication date
FR2134829A5 (fr) 1972-12-08
DE2117341A1 (de) 1972-10-12
DE2117341B2 (de) 1976-04-08

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Owner name: MITSUBISHI KASEI CORPORATION, JAPAN

Free format text: CHANGE OF NAME;ASSIGNOR:MITSUBISHI CHEMICAL INDUSTRIES LIMITED;REEL/FRAME:005004/0736

Effective date: 19880601

Owner name: MITSUBISHI KASEI CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:MITSUBISHI CHEMICAL INDUSTRIES LIMITED;REEL/FRAME:005004/0736

Effective date: 19880601