GB972136A - Improvements in ratchet advance mechanism - Google Patents

Improvements in ratchet advance mechanism

Info

Publication number
GB972136A
GB972136A GB3225061A GB3225061A GB972136A GB 972136 A GB972136 A GB 972136A GB 3225061 A GB3225061 A GB 3225061A GB 3225061 A GB3225061 A GB 3225061A GB 972136 A GB972136 A GB 972136A
Authority
GB
United Kingdom
Prior art keywords
blade
ratchet wheel
bracket
running
ratchet
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
GB3225061A
Inventor
Eric Desmond Rose
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.)
STERLING INSTR Co Ltd
Original Assignee
STERLING INSTR Co 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 STERLING INSTR Co Ltd filed Critical STERLING INSTR Co Ltd
Priority to GB3225061A priority Critical patent/GB972136A/en
Publication of GB972136A publication Critical patent/GB972136A/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
    • F16H29/00—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action
    • F16H29/02—Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts

Landscapes

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

Abstract

972,136. Ratchet mechanism. STERLING INSTRUMENT CO. Ltd. Dec. 7, 1962 [Sept. 7, 1961], No. 32250/61. Heading F2Q. A ratchet wheel 1 is driven by a pawl comprising a resilient blade 3 which is rigidly connected to a bracket 4 pivotally mounted on a spindle 5 and carrying a roller 7 which is adapted to be engaged by a cam 8 in order to flex the blade 3 into the dotted position 32, and subsequently to allow the blade 3 to straighten and thereby drive the ratchet wheel 1 forward one step. The bracket 4 also carries a weight 6 which, in co-operation with a pivoted member 15, causes the blade 3 to bow in the opposite direction at the end of the driving stroke and thereby act as a damper to prevent the ratchet wheel 1 over-running. Back-running is prevented by an adjustable flexible blade 21. The pivoted member 15 may be replaced by a stoppin 34.
GB3225061A 1961-09-07 1961-09-07 Improvements in ratchet advance mechanism Expired GB972136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3225061A GB972136A (en) 1961-09-07 1961-09-07 Improvements in ratchet advance mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3225061A GB972136A (en) 1961-09-07 1961-09-07 Improvements in ratchet advance mechanism

Publications (1)

Publication Number Publication Date
GB972136A true GB972136A (en) 1964-10-07

Family

ID=10335679

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3225061A Expired GB972136A (en) 1961-09-07 1961-09-07 Improvements in ratchet advance mechanism

Country Status (1)

Country Link
GB (1) GB972136A (en)

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