GB769918A - Improvements in or relating to optical instruments - Google Patents

Improvements in or relating to optical instruments

Info

Publication number
GB769918A
GB769918A GB91754A GB91754A GB769918A GB 769918 A GB769918 A GB 769918A GB 91754 A GB91754 A GB 91754A GB 91754 A GB91754 A GB 91754A GB 769918 A GB769918 A GB 769918A
Authority
GB
United Kingdom
Prior art keywords
slide
pillar
grooves
relating
optical instruments
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
GB91754A
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.)
FRANK THOMAS OSBORN
W Watson and Sons Ltd
Original Assignee
FRANK THOMAS OSBORN
W Watson and Sons 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 FRANK THOMAS OSBORN, W Watson and Sons Ltd filed Critical FRANK THOMAS OSBORN
Priority to GB91754A priority Critical patent/GB769918A/en
Publication of GB769918A publication Critical patent/GB769918A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G23/00—Means for ensuring the correct positioning of parts of control mechanisms, e.g. for taking-up play
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/02—Sliding-contact bearings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/24—Base structure
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G2700/00—Control mechanisms or elements therefor applying a mechanical movement
    • G05G2700/02—Means for regulating or adjusting control mechanisms, e.g. devices for automatic adjustment

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

769,918. Bearings. WATSON & SONS, Ltd., W., and OSBORN, F. T. Dec. 31, 1954 [Jan. 12, 1954], No. 917/54. Class 12 (1). [Also in Group XX] A rectilinear-motion bearing between a slide 41 and a pillar 21 of a microscope comprises strips 27 of resilient plastic material, preferably polytetrafluoroethylene, disposed in grooves in the pillar 21. The inserts are retained by swaging over the edges of the grooves. In a modification the bearing portion of the slide is coated with polytetrafluoroethylene. The invention is applied to the slide of a microscope in which the adjusting shaft 45 is journalled in plastic bushes 48. Alternative plastic materials are polyethylene and polychlorotrifluoroethylene.
GB91754A 1954-01-12 1954-01-12 Improvements in or relating to optical instruments Expired GB769918A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB91754A GB769918A (en) 1954-01-12 1954-01-12 Improvements in or relating to optical instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB91754A GB769918A (en) 1954-01-12 1954-01-12 Improvements in or relating to optical instruments

Publications (1)

Publication Number Publication Date
GB769918A true GB769918A (en) 1957-03-13

Family

ID=9712783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB91754A Expired GB769918A (en) 1954-01-12 1954-01-12 Improvements in or relating to optical instruments

Country Status (1)

Country Link
GB (1) GB769918A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156601B (en) * 1958-12-19 1963-10-31 Bendix Corp Cleaning device for fuel from internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1156601B (en) * 1958-12-19 1963-10-31 Bendix Corp Cleaning device for fuel from internal combustion engines

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