GB1185133A - Device for Transmitting Motion in an Apparatus to an Adjustable Index - Google Patents

Device for Transmitting Motion in an Apparatus to an Adjustable Index

Info

Publication number
GB1185133A
GB1185133A GB5675368A GB5675368A GB1185133A GB 1185133 A GB1185133 A GB 1185133A GB 5675368 A GB5675368 A GB 5675368A GB 5675368 A GB5675368 A GB 5675368A GB 1185133 A GB1185133 A GB 1185133A
Authority
GB
United Kingdom
Prior art keywords
levers
fulcra
cable
pulleys
lever
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
GB5675368A
Inventor
Ernst Winter
Heinz Riegler
Ernst Leo
Lothar Wochnik
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.)
Jenoptik AG
Original Assignee
Carl Zeiss Jena GmbH
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 Carl Zeiss Jena GmbH filed Critical Carl Zeiss Jena GmbH
Priority to GB5675368A priority Critical patent/GB1185133A/en
Publication of GB1185133A publication Critical patent/GB1185133A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/12—Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these types
    • 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
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

1,185,133. Linkwork. CARL ZEISS JENA VEB. 29 Nov., 1968, No. 56753/68. Heading F2K. [Also in Division G1] A pointer or pen 11 of a measuring instrument is moved by opposed cables 1, 2 connected at their other ends to a drive member 3, each cable passing round at least one tensioning and guiding pulley 7, 9 mounted on a lever 15, 16, the levers being coupled together by a connecting rod 21. To compensate for changes in cable length due to humidity or temperature changes or ageing, without affecting the pointer or pen setting, the coupling of the levers ensures that the magnitudes of the tensioning movements of pulleys 7, 9 are proportional to the lengths of the cables 1, 2 which they engage. The drive member 3 may be a rotatable pulley, as shown, or a linearly movable member. As shown, a tensioning spring 19 acts on the lever 15. The connecting rod 21 is pivoted to the levers 15, 16 at distances h 1 , h 2 from their respective fulcra 17, 18 such that the ratio h 1 : h 2 equals the ratio of the length of cable 2 to the length of cable 1. The pulleys 7, 9 are at equal distances from their lever fulcra 17, 19. In a modification (Fig. 2, not shown) the connecting rod (41) is pivoted to the levers (33, 38) at equal distances from their fulcra (32, 37) and the distances of the pulleys (30, 31) from the fulcra (32, 37) of their respective levers are proportional to the lengths of the cables (25, 26) which they engage.
GB5675368A 1968-11-29 1968-11-29 Device for Transmitting Motion in an Apparatus to an Adjustable Index Expired GB1185133A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5675368A GB1185133A (en) 1968-11-29 1968-11-29 Device for Transmitting Motion in an Apparatus to an Adjustable Index

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5675368A GB1185133A (en) 1968-11-29 1968-11-29 Device for Transmitting Motion in an Apparatus to an Adjustable Index

Publications (1)

Publication Number Publication Date
GB1185133A true GB1185133A (en) 1970-03-18

Family

ID=10477452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5675368A Expired GB1185133A (en) 1968-11-29 1968-11-29 Device for Transmitting Motion in an Apparatus to an Adjustable Index

Country Status (1)

Country Link
GB (1) GB1185133A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees