GB1362973A - Bi-directional indexing mechanism - Google Patents

Bi-directional indexing mechanism

Info

Publication number
GB1362973A
GB1362973A GB5482871A GB5482871A GB1362973A GB 1362973 A GB1362973 A GB 1362973A GB 5482871 A GB5482871 A GB 5482871A GB 5482871 A GB5482871 A GB 5482871A GB 1362973 A GB1362973 A GB 1362973A
Authority
GB
United Kingdom
Prior art keywords
movement
index wheel
shoulder
externally toothed
toothed surface
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
GB5482871A
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.)
English Numbering Machines Ltd
Original Assignee
English Numbering Machines 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 English Numbering Machines Ltd filed Critical English Numbering Machines Ltd
Priority to GB5482871A priority Critical patent/GB1362973A/en
Publication of GB1362973A publication Critical patent/GB1362973A/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
    • F16H31/00—Other gearings with freewheeling members or other intermittently driving members
    • F16H31/003—Step-by-step mechanisms for rotary motion
    • F16H31/005—Step-by-step mechanisms for rotary motion with pawls driven by a reciprocating or oscillating transmission member
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/04—Design features of general application for driving the stage of lowest order
    • G06M1/041—Design features of general application for driving the stage of lowest order for drum-type indicating means
    • G06M1/042—Design features of general application for driving the stage of lowest order for drum-type indicating means with click devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/22—Design features of general application for visual indication of the result of count on counting mechanisms, e.g. by window with magnifying lens
    • G06M1/26—Aligning means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Positioning Apparatuses (AREA)

Abstract

1362973 Ratchet gearing ENGLISH NUMBERING MACHINES Ltd 31 Aug 1972 [25 Nov 1971] 54828/71 Heading F2Q [Also in Division G4] An indexing mechanism comprises an index wheel having an internally toothed surface 20 and an externally toothed surface 22 which are adapted to be engaged by pawls 24, 26 mounted on fixed pivots 28, 30 and driven by rods 32, 34 from solenoids 36, 38. The pawls 24, 26 have shoulders 24a, 26a which are urged into engagement with the externally toothed surface by springs 40, 42. On the application of a pulse to the solenoid 36, it effects anticlockwise movement of pawl 24 so that a shoulder 24b engages a surface 20a of the internally toothed surface 20 causing the index wheel to rotate more than half an index step in an anti-clockwise direction. The indexing movement is completed by the action of a shoulder 26a of pawl 26 on a tooth of the externally toothed member 22 under the influence of spring 42. This movement is assisted by the action of shoulder 24a on the externally toothed member 22. For movement of the index wheel in a clockwise direction, the solenoid 38 is energized. Facilities for transfer and reset signals are provided by microswitches 48, 50 operated by a cam surface 46. In a modification, the solenoids 36, 38 are located within the circumference of the index wheel.
GB5482871A 1972-08-31 1972-08-31 Bi-directional indexing mechanism Expired GB1362973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5482871A GB1362973A (en) 1972-08-31 1972-08-31 Bi-directional indexing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5482871A GB1362973A (en) 1972-08-31 1972-08-31 Bi-directional indexing mechanism

Publications (1)

Publication Number Publication Date
GB1362973A true GB1362973A (en) 1974-08-14

Family

ID=10472197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5482871A Expired GB1362973A (en) 1972-08-31 1972-08-31 Bi-directional indexing mechanism

Country Status (1)

Country Link
GB (1) GB1362973A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574660A (en) * 1984-02-21 1986-03-11 Usm Corporation Component assembly table drive
RU2484350C2 (en) * 2011-07-26 2013-06-10 Владимир Федорович Семенов Method of manual pulse controlled drive operation and manual pulse controlled drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574660A (en) * 1984-02-21 1986-03-11 Usm Corporation Component assembly table drive
RU2484350C2 (en) * 2011-07-26 2013-06-10 Владимир Федорович Семенов Method of manual pulse controlled drive operation and manual pulse controlled drive

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee