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GB2000305A - Weighing scale - Google Patents

Weighing scale

Info

Publication number
GB2000305A
GB2000305A GB7827153A GB7827153A GB2000305A GB 2000305 A GB2000305 A GB 2000305A GB 7827153 A GB7827153 A GB 7827153A GB 7827153 A GB7827153 A GB 7827153A GB 2000305 A GB2000305 A GB 2000305A
Authority
GB
United Kingdom
Prior art keywords
balance
leadscrew
weight
weighing scale
pan
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.)
Granted
Application number
GB7827153A
Other versions
GB2000305B (en
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.)
Pitney Bowes Inc
Original Assignee
Pitney Bowes Inc
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
Priority claimed from US05/807,393 external-priority patent/US4113040A/en
Priority claimed from US05/807,394 external-priority patent/US4122906A/en
Priority claimed from US05/807,395 external-priority patent/US4124083A/en
Application filed by Pitney Bowes Inc filed Critical Pitney Bowes Inc
Publication of GB2000305A publication Critical patent/GB2000305A/en
Application granted granted Critical
Publication of GB2000305B publication Critical patent/GB2000305B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
    • G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G1/00—Weighing apparatus involving the use of a counterweight or other counterbalancing mass
    • G01G1/18—Balances involving the use of a pivoted beam, i.e. beam balances
    • G01G1/26—Balances involving the use of a pivoted beam, i.e. beam balances with associated counterweight or set of counterweights
    • G01G1/36—Balances involving the use of a pivoted beam, i.e. beam balances with associated counterweight or set of counterweights wherein the counterweights are slideable along the beam, e.g. steelyards
    • G01G1/38—Balances involving the use of a pivoted beam, i.e. beam balances with associated counterweight or set of counterweights wherein the counterweights are slideable along the beam, e.g. steelyards with automatically-driven counterweight
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/08—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a leaf spring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)
  • Measurement Of Force In General (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

A weighing scale, particularly an analytical balance, has a pan 12 which is counterbalanced by a rod or shaft 31, 32 along which a balance weight 22 is movable. A balance detector 20 detects a condition of balance. The weight may be moved along the rod or shaft by a motor-leadscrew 15, 21 arrangement. The rotation of the leadscrew is measured and used to indicate the weight of the load on the pan. The balance detector may be a null transducer comprising first and second bands 36, 37 e.g. of spring strip, and a third band 70 which carries strain gage means. The balance weight is supported on rollers separately from the leadscrew and a journal movable along the leadscrew is biassed by a predetermined amount into contact with the leadscrew, and is connected to the balance weight. <IMAGE>
GB7827153A 1977-06-17 1978-06-16 A weighing scale Expired GB2000305B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/807,393 US4113040A (en) 1977-06-17 1977-06-17 Null transducer for an analytical balance
US05/807,394 US4122906A (en) 1977-06-17 1977-06-17 Load coupling device
US05/807,395 US4124083A (en) 1977-06-17 1977-06-17 Automatic analytical weighing scale

Publications (2)

Publication Number Publication Date
GB2000305A true GB2000305A (en) 1979-01-04
GB2000305B GB2000305B (en) 1982-04-15

Family

ID=27420028

Family Applications (3)

Application Number Title Priority Date Filing Date
GB7827153A Expired GB2000305B (en) 1977-06-17 1978-06-16 A weighing scale
GB7937632A Expired GB2032631B (en) 1977-06-17 1979-10-31 Automatic weighing machine
GB7937633A Expired GB2032632B (en) 1977-06-17 1979-10-31 Balance beam and wieght arrangement

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB7937632A Expired GB2032631B (en) 1977-06-17 1979-10-31 Automatic weighing machine
GB7937633A Expired GB2032632B (en) 1977-06-17 1979-10-31 Balance beam and wieght arrangement

Country Status (3)

Country Link
DE (1) DE2826511A1 (en)
FR (2) FR2406189B1 (en)
GB (3) GB2000305B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2690415A1 (en) * 2012-07-23 2014-01-29 Mettler-Toledo AG Force measurement device with sliding weight

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123164A (en) * 1964-03-03 Electronic-measuring and recording system
US1069276A (en) * 1911-10-03 1913-08-05 Internat Electric Company Automatic recording-scale.
FR774476A (en) * 1933-06-13 1934-12-07 Beraud Sudreau & Compagine F Automatic Roman scale
GB780364A (en) * 1955-07-13 1957-07-31 Jean Gerondeau Automatic weighing scale
US2955811A (en) * 1956-12-07 1960-10-11 Garrett Corp Strain gauge weighing balance
US3014380A (en) * 1958-12-15 1961-12-26 Anderson Co Motion-transmitting device
DE1273849B (en) * 1961-05-26 1968-07-25 Schenck Gmbh Carl Automatic scales with only one loading position
DE1449928B2 (en) * 1963-10-06 1972-03-23 Hino, Masamichi, Hirakata City (Japan) INDEPENDENT BARREL WEIGHT SCALE
GB1138585A (en) * 1965-02-13 1969-01-01 Haack Werner An automatic weighing machine of the steel-yard type
GB1136085A (en) * 1965-07-07 1968-12-11 Mullard Ltd An improved method and apparatus for weighing
US3530949A (en) * 1969-04-14 1970-09-29 Brookline Instr Co Hydraulic weight totalizing apparatus with electric re-balancing
DE2131800A1 (en) * 1971-06-26 1973-01-11 Sauter August Gmbh SCALE WITH INDEPENDENT BARREL WEIGHT SHIFT
DE2200533C3 (en) * 1972-01-07 1974-05-22 Pfister Waagen Gmbh, 8900 Augsburg Automatic running weight scale
FR2271549A1 (en) * 1973-12-07 1975-12-12 Testut Aequitas Digital output weighbridge - has beam, load-carrier, and motor driven cursor with output disc encoder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2690415A1 (en) * 2012-07-23 2014-01-29 Mettler-Toledo AG Force measurement device with sliding weight
JP2014021125A (en) * 2012-07-23 2014-02-03 Mettler-Toledo Ag Force measurement device having feed weight
CN103575369A (en) * 2012-07-23 2014-02-12 梅特勒-托利多公开股份有限公司 Force-measuring device with sliding weight
US9360362B2 (en) 2012-07-23 2016-06-07 Mettler-Toledo Gmbh Force-measuring device with sliding weight
CN103575369B (en) * 2012-07-23 2018-06-08 梅特勒-托莱多有限公司 With the device for measuring force for sliding counterweight

Also Published As

Publication number Publication date
FR2406190B1 (en) 1983-07-22
DE2826511C2 (en) 1987-09-24
GB2032631B (en) 1982-04-07
FR2406189A1 (en) 1979-05-11
GB2032632A (en) 1980-05-08
FR2406189B1 (en) 1986-07-25
FR2406190A1 (en) 1979-05-11
GB2032631A (en) 1980-05-08
GB2032632B (en) 1982-04-07
DE2826511A1 (en) 1979-01-11
GB2000305B (en) 1982-04-15

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee