GB1205821A - Improvements relating to change speed mechanisms - Google Patents

Improvements relating to change speed mechanisms

Info

Publication number
GB1205821A
GB1205821A GB3589768A GB3589768A GB1205821A GB 1205821 A GB1205821 A GB 1205821A GB 3589768 A GB3589768 A GB 3589768A GB 3589768 A GB3589768 A GB 3589768A GB 1205821 A GB1205821 A GB 1205821A
Authority
GB
United Kingdom
Prior art keywords
meter
ratio
gear pair
change
pair
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
GB3589768A
Inventor
Colin Ernest Moore-Fay
Desmond Dransfield
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.)
United Gas Industries Ltd
Original Assignee
United Gas Industries 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 United Gas Industries Ltd filed Critical United Gas Industries Ltd
Priority to GB3589768A priority Critical patent/GB1205821A/en
Publication of GB1205821A publication Critical patent/GB1205821A/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
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
    • F16H63/16—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism

Landscapes

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

Abstract

1,205,821. Change-speed gears. UNITED GAS INDUSTRIES Ltd. 9 July, 1969 [26 July, 1968], No. 35897/68. Heading F2D. A two-speed toothed gear drive with no neutral position, for a variable tariff, e.g. pricing mechanism of an electricity or gas meter, comprises an integral pair of toothed wheels 5, 6 rotatably fast with but axially slidable on a hexagonal output shaft 2 into mesh with one or other of two gears 3, 4 integrally formed on an input shaft 1, the overall width of the slidable output gear pair 5, 6 being greater than the spacing between the input pinions 3, 4 whereby during ratio shift, i.e. axial sliding of the gear pair 5, 6 the gearing is locked, the new ratio being established before disengaging the existing ratio to avoid a neutral condition in which power (i.e. gas or electricity) could be consumed without the associated credit being recorded on the meter. Change of ratio is effected by manually turning in one or other direction, via a screw-driven slot 25, a helically splined shaft 18 to axially move a striker arm 12 correspondingly splined thereon and prevented from rotation by an axially extending fixed pin 19 piloted in the arm 12 at 20, the arm 12 having a forked end 15 carrying axial pins 13, 14 engaging with slight clearance each side of a disc 7 fast with the integral gear pair 5, 6 for axial gearchanging movement thereof, the pins 13, 14 being formed of or coated with a low friction material. The screw-driven slot 25 is formed at the end of shaft 18 in the face of a separate pinion 21 which meshes a quadrant marked with the relevant meter rates A or B one or other of which appears in an indication window 24 only when the appropriate gear pair 3, 5 or 4, 6 are fully meshed and the other pair completely disengaged, which condition allows a spring- loaded plunger (not shown) to engage one of two holes in a disc (not shown) ensuring correct complete movement of the sliding gear pair 5, 6 before the meter cover (not shown) can be replaced after such a gear ratio change, i.e. meter tariff change from A to B or vice-versa. The shafts, gears and various other components of the mechanism may be moulded in or constructed from synthetic plastics material.
GB3589768A 1968-07-26 1968-07-26 Improvements relating to change speed mechanisms Expired GB1205821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3589768A GB1205821A (en) 1968-07-26 1968-07-26 Improvements relating to change speed mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3589768A GB1205821A (en) 1968-07-26 1968-07-26 Improvements relating to change speed mechanisms

Publications (1)

Publication Number Publication Date
GB1205821A true GB1205821A (en) 1970-09-16

Family

ID=10382762

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3589768A Expired GB1205821A (en) 1968-07-26 1968-07-26 Improvements relating to change speed mechanisms

Country Status (1)

Country Link
GB (1) GB1205821A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511107A1 (en) * 1981-08-07 1983-02-11 Cef Centre Etd Fraisage GEAR BOX SPEED CHANGE CONTROL DEVICE
EP1275880A2 (en) * 2001-07-06 2003-01-15 TTS Tooltechnic Systems AG & Co. KG Gear shifting mechanism for a machine
US9664256B2 (en) 2012-08-01 2017-05-30 Richter Helmut Transmission which can be switched between at least three switching stages

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511107A1 (en) * 1981-08-07 1983-02-11 Cef Centre Etd Fraisage GEAR BOX SPEED CHANGE CONTROL DEVICE
EP0072272A1 (en) * 1981-08-07 1983-02-16 Centre D'etudes Du Fraisage (C.E.F.) Control mechanism for shifting change-speed gearings
EP1275880A2 (en) * 2001-07-06 2003-01-15 TTS Tooltechnic Systems AG & Co. KG Gear shifting mechanism for a machine
EP1275880A3 (en) * 2001-07-06 2007-12-12 TTS Tooltechnic Systems AG & Co. KG Gear shifting mechanism for a machine
US9664256B2 (en) 2012-08-01 2017-05-30 Richter Helmut Transmission which can be switched between at least three switching stages

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees