GB242826A - Improvements in fine adjustment mechanisms applicable to scientific instruments, surveying instruments and the like - Google Patents

Improvements in fine adjustment mechanisms applicable to scientific instruments, surveying instruments and the like

Info

Publication number
GB242826A
GB242826A GB150225A GB150225A GB242826A GB 242826 A GB242826 A GB 242826A GB 150225 A GB150225 A GB 150225A GB 150225 A GB150225 A GB 150225A GB 242826 A GB242826 A GB 242826A
Authority
GB
United Kingdom
Prior art keywords
instruments
cap
screw
watts
fork
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
GB150225A
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.)
E R WATTS AND SON Ltd
Original Assignee
E R WATTS AND SON 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 E R WATTS AND SON Ltd filed Critical E R WATTS AND SON Ltd
Priority to GB150225A priority Critical patent/GB242826A/en
Publication of GB242826A publication Critical patent/GB242826A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/26—Details
    • G01C9/28—Mountings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Abstract

242,826. Watts & Son, Ltd., E. R., and Watts, G. W. Jan. 17, 1925. Angle-measuring instruments.-In a different-screw fine-adjustment for scientific instruments &c., the body to be adjusted and one of the members of the differential screw are so shaped that when they are pressed together they engage to prevent relative rotation between them. The Figures show the application of the invention to the spirit level of a surveying instrument, the level 2 being secured in a metal casing 4 having end caps 5, 6. The cap 6 is pivotally mounted in the support 1 between a screw 8 and spring 7. The cap 5 is forked, and each arm of the fork is formed on its under-side with a V-shaped recess 14 which receives one of the cylindrical bars 15 provided on the head 16 of the axially-movable member 17 of the differential screw comprising also an internally and externally threaded sleeve 18 engaging in the support 1. The head 16 is of such diameter that it fits accurately between the forks 5. Springs 10, 11 press the fork into engagement with the bars 15. The mounting of the cap 6 prevents the occurrence of strain due to changes of temperature.
GB150225A 1925-01-17 1925-01-17 Improvements in fine adjustment mechanisms applicable to scientific instruments, surveying instruments and the like Expired GB242826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB150225A GB242826A (en) 1925-01-17 1925-01-17 Improvements in fine adjustment mechanisms applicable to scientific instruments, surveying instruments and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB150225A GB242826A (en) 1925-01-17 1925-01-17 Improvements in fine adjustment mechanisms applicable to scientific instruments, surveying instruments and the like

Publications (1)

Publication Number Publication Date
GB242826A true GB242826A (en) 1925-11-19

Family

ID=9723099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB150225A Expired GB242826A (en) 1925-01-17 1925-01-17 Improvements in fine adjustment mechanisms applicable to scientific instruments, surveying instruments and the like

Country Status (1)

Country Link
GB (1) GB242826A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668358A (en) * 1949-09-16 1954-02-09 Chicago Bridge & Iron Co Apparatus for gauging
US3122840A (en) * 1960-08-08 1964-03-03 Karstens Edward Siegfried Precision leveling device
EP0145125A2 (en) * 1983-08-30 1985-06-19 Sperry Corporation Tilt sensor null adjusting apparatus
CN102941508A (en) * 2012-11-09 2013-02-27 无锡华联精工机械有限公司 Detecting and tracking micro-adjusting mechanism of circular seam back chipping and edge milling machine
CN112762905A (en) * 2020-12-28 2021-05-07 杨新倩 Engineering measuring device and using method thereof
CN114578506A (en) * 2022-05-09 2022-06-03 上海隐冠半导体技术有限公司 Target mirror adjusting device and method and straightness measuring device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668358A (en) * 1949-09-16 1954-02-09 Chicago Bridge & Iron Co Apparatus for gauging
US3122840A (en) * 1960-08-08 1964-03-03 Karstens Edward Siegfried Precision leveling device
EP0145125A2 (en) * 1983-08-30 1985-06-19 Sperry Corporation Tilt sensor null adjusting apparatus
US4567666A (en) * 1983-08-30 1986-02-04 Sperry Corporation Tilt sensor null adjusting apparatus
EP0145125A3 (en) * 1983-08-30 1986-12-10 Sperry Corporation Tilt sensor null adjusting apparatus
CN102941508A (en) * 2012-11-09 2013-02-27 无锡华联精工机械有限公司 Detecting and tracking micro-adjusting mechanism of circular seam back chipping and edge milling machine
CN102941508B (en) * 2012-11-09 2015-01-28 无锡华联精工机械有限公司 Detecting and tracking micro-adjusting mechanism of circular seam back chipping and edge milling machine
CN112762905A (en) * 2020-12-28 2021-05-07 杨新倩 Engineering measuring device and using method thereof
CN114578506A (en) * 2022-05-09 2022-06-03 上海隐冠半导体技术有限公司 Target mirror adjusting device and method and straightness measuring device
CN114578506B (en) * 2022-05-09 2022-09-20 上海隐冠半导体技术有限公司 Target mirror adjusting device and method and straightness measuring device

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