GB756030A - Improvements relating to the construction and operation of precision balances - Google Patents
Improvements relating to the construction and operation of precision balancesInfo
- Publication number
- GB756030A GB756030A GB3046452A GB3046452A GB756030A GB 756030 A GB756030 A GB 756030A GB 3046452 A GB3046452 A GB 3046452A GB 3046452 A GB3046452 A GB 3046452A GB 756030 A GB756030 A GB 756030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- actuated
- knife edge
- weighing
- relieving mechanism
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G1/00—Weighing apparatus involving the use of a counterweight or other counterbalancing mass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Transmission Devices (AREA)
Abstract
756,030. Weighing-apparatus. STANTON INSTRUMENTS, Ltd. Dec. 1, 1953 [Dec. 1, 1952], No. 30464/52. Class 143 A precision knife edge balance of the type including relieving mechanism, effective when actuated to relocate the knife edge on its bearing, is adapted for continuous weighing by automatically actuating the relieving mechanism momentarily at predetermined intervals during a weighing operation. The relieving mechanism consists of a rod 12 sliding in a hollow pillar 7 to raise a platform 15 and arms 16 which have V notches engaging a transverse spindle on the beam 1 to lift the main knife edge clear of its bearing. The platform 15 is provided with pairs of pillars 18 and 19, the pointed ends of which engage one a V notch and the other a cone formed in the under face of the pan suspending pieces. The mechanism also includes plungers 20 to lift the pans 21. These plungers and the rod 12 are actuated by cams 22, 13 on a shaft 23 intermittently rotated by a synchronous electric motor 29. The motor also drives an interruptor cam through 2:1 gearing so that the shaft 23 will rotate through 360 degrees each time the motor is energized. The motor may be energized either from contacts actuated by a timing cam (Fig. 4, not shown), driven by a second synchronous motor, or from contacts actuated by a thermal interruptor (Fig. 5, not shown).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3046452A GB756030A (en) | 1952-12-01 | 1952-12-01 | Improvements relating to the construction and operation of precision balances |
| DEST7406A DE932635C (en) | 1952-12-01 | 1953-12-02 | Precision cutting scales with locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3046452A GB756030A (en) | 1952-12-01 | 1952-12-01 | Improvements relating to the construction and operation of precision balances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB756030A true GB756030A (en) | 1956-08-29 |
Family
ID=10308106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3046452A Expired GB756030A (en) | 1952-12-01 | 1952-12-01 | Improvements relating to the construction and operation of precision balances |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE932635C (en) |
| GB (1) | GB756030A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4042050A (en) * | 1976-04-07 | 1977-08-16 | Ohaus Scale Corporation | Balance beam scale |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE850077C (en) * | 1942-07-29 | 1952-09-22 | Horst Sartorius | Arc lock for precision scales |
| CH281477A (en) * | 1950-05-17 | 1952-03-15 | Mettler E Fabrik Fuer Analysenwaagen | Analytical balance. |
-
1952
- 1952-12-01 GB GB3046452A patent/GB756030A/en not_active Expired
-
1953
- 1953-12-02 DE DEST7406A patent/DE932635C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE932635C (en) | 1955-09-05 |
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