GB1337784A - Advance mechanism - Google Patents

Advance mechanism

Info

Publication number
GB1337784A
GB1337784A GB1337784DA GB1337784A GB 1337784 A GB1337784 A GB 1337784A GB 1337784D A GB1337784D A GB 1337784DA GB 1337784 A GB1337784 A GB 1337784A
Authority
GB
United Kingdom
Prior art keywords
teeth
tooth
drum
spring
rest
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
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1337784A publication Critical patent/GB1337784A/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
    • F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
    • F16H27/02—Step-by-step mechanisms without freewheel members, e.g. Geneva drives with at least one reciprocating or oscillating transmission member
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Transmissions By Endless Flexible Members (AREA)

Abstract

1337784 Ratchet mechanism E L KNOWLES 6 Dec 1971 [20 Jan 1971] 2729/71 Heading F2Q A mechanism for advancing a drum 2 provided with internal teeth 3 comprises a member 1 pivotally mounted on a shaft 4 and having teeth 7, 8 adapted to engage the teeth 3. A spring 5 maintains the member 1 in the rest position shown in Fig. 2. On displacement of the member 1 by means of a push-rod 6, tooth 7 engages a tooth 3 to cause acceleration of the drum 2. Upon removal of the force applied to the pushrod 6, the spring 5 causes the member 1 to move back to its position of rest, the wheel 2 being slowed by impact of a tooth flank 10 with teeth 3. In a modification, the member 1 is provided with two teeth 12, Fig. 4a.
GB1337784D 1971-01-20 1971-01-20 Advance mechanism Expired GB1337784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB272971 1971-01-20

Publications (1)

Publication Number Publication Date
GB1337784A true GB1337784A (en) 1973-11-21

Family

ID=9744791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1337784D Expired GB1337784A (en) 1971-01-20 1971-01-20 Advance mechanism

Country Status (1)

Country Link
GB (1) GB1337784A (en)

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Legal Events

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