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GB871795A - Improvements in or relating to weighing apparatus - Google Patents

Improvements in or relating to weighing apparatus

Info

Publication number
GB871795A
GB871795A GB211159A GB211159A GB871795A GB 871795 A GB871795 A GB 871795A GB 211159 A GB211159 A GB 211159A GB 211159 A GB211159 A GB 211159A GB 871795 A GB871795 A GB 871795A
Authority
GB
United Kingdom
Prior art keywords
photo
output
cell
coil
current
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
Application number
GB211159A
Inventor
Anthony Leonard Hendon
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.)
TELOMEX Ltd
Original Assignee
TELOMEX Ltd
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 TELOMEX Ltd filed Critical TELOMEX Ltd
Priority to GB211159A priority Critical patent/GB871795A/en
Priority to BE586702A priority patent/BE586702A/en
Priority to CH56660A priority patent/CH378057A/en
Priority to FR816007A priority patent/FR1245415A/en
Publication of GB871795A publication Critical patent/GB871795A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G1/00—Weighing apparatus involving the use of a counterweight or other counterbalancing mass
    • G01G1/02—Pendulum-weight apparatus
    • G01G1/04—Pendulum-weight apparatus the pendulum having a fixed pivot axis
    • G01G1/06—Pendulum-weight apparatus the pendulum having a fixed pivot axis with a plurality of pendulums
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G7/00—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups
    • G01G7/02—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action
    • G01G7/04—Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups by electromagnetic action with means for regulating the current to solenoids

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)

Abstract

871,795. Photo-electric control systems. TELOMEX Ltd. Dec. 18, 1959 [Jan. 20, 1959], No. 2111/59. Class 40(3) [Also in Group XVIII] In a weighing machine in which the invention resides in the nature of the weighbeam system (see Group XVIII) a beam of light may be made to pass through an aperture movable with the beam and so constructed that the illumination of a fixed photo-cell varies in accordance with the beam position, the cell output being made to control the current in a coil 13 carried by the beam and acting upon a fixed magnet. The photo-cell is a photo-transistor 24 connected as shown in series with a temperature-compensating photo-transistor 25. The cell signal, amplified by transistors 26, 21 is applied to one arm of a bridge comprising the resistors 15, 16, 17, 18, the bridge output being applied to a meter, in series with the coil 13, connected between terminals 19, 20. For check weighing, it is arranged that this output is zero when the required load is applied to the weighbeam. Under and overweight articles then produce an output current which, by the action of the coil and its magnet, is made to resist beam deflection. The current at final equilibrium is a measure of weight error and may be used to indicate rejecting action when necessary.
GB211159A 1959-01-20 1959-01-20 Improvements in or relating to weighing apparatus Expired GB871795A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB211159A GB871795A (en) 1959-01-20 1959-01-20 Improvements in or relating to weighing apparatus
BE586702A BE586702A (en) 1959-01-20 1960-01-19 Improvements in or relating to weighing devices.
CH56660A CH378057A (en) 1959-01-20 1960-01-19 Libra
FR816007A FR1245415A (en) 1959-01-20 1960-01-19 Weighing device operating at high speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB211159A GB871795A (en) 1959-01-20 1959-01-20 Improvements in or relating to weighing apparatus

Publications (1)

Publication Number Publication Date
GB871795A true GB871795A (en) 1961-06-28

Family

ID=9733810

Family Applications (1)

Application Number Title Priority Date Filing Date
GB211159A Expired GB871795A (en) 1959-01-20 1959-01-20 Improvements in or relating to weighing apparatus

Country Status (4)

Country Link
BE (1) BE586702A (en)
CH (1) CH378057A (en)
FR (1) FR1245415A (en)
GB (1) GB871795A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648793A (en) * 1971-02-09 1972-03-14 Nat Mfg Co Load measuring system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH623133A5 (en) * 1977-12-06 1981-05-15 Mettler Instrumente Ag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648793A (en) * 1971-02-09 1972-03-14 Nat Mfg Co Load measuring system

Also Published As

Publication number Publication date
BE586702A (en) 1960-05-16
FR1245415A (en) 1960-11-04
CH378057A (en) 1964-05-31

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