GB641789A - Improvements in or relating to gearing for affording conversion to and from british and metric measure - Google Patents

Improvements in or relating to gearing for affording conversion to and from british and metric measure

Info

Publication number
GB641789A
GB641789A GB3440546A GB3440546A GB641789A GB 641789 A GB641789 A GB 641789A GB 3440546 A GB3440546 A GB 3440546A GB 3440546 A GB3440546 A GB 3440546A GB 641789 A GB641789 A GB 641789A
Authority
GB
United Kingdom
Prior art keywords
gear
shaft
gearing
dogs
british
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
GB3440546A
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.)
JACK FRY
VICTORIA MACHINE TOOL Co
Original Assignee
JACK FRY
VICTORIA MACHINE TOOL Co
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 JACK FRY, VICTORIA MACHINE TOOL Co filed Critical JACK FRY
Priority to GB3440546A priority Critical patent/GB641789A/en
Publication of GB641789A publication Critical patent/GB641789A/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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/16—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion essentially with both gears that can be put out of gear and continuously-meshing gears that can be disengaged from their shafts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fodder In General (AREA)

Abstract

641,789. Variable-speed gearing. VICTORIA MACHINE TOOL CO., Ltd., FRY, J., and SELBY, J. Nov. 20, 1946, No. 34405. [Class 80(ii)] Gearing for affording conversion between British and metric measure, and particularly applicable to machine tools such as lathes for converting the rate of feed, comprises a gear 3 fast on a driven shaft 2, a double gear b, c rotatably mounted on the shaft 2, a double gear 4, a rotatably mounted on a driving shaft 1 and a sliding gear and clutch member d splined to the shaft 1. When gear d is moved to the right dogs 5 thereon engage with corresponding dogs on the double gear 4, a so that gear 4 is clutched to shaft 1 which thus directly drives through gear 3 the driven shaft 2. When the gear d is moved to the left the dogs 5 disengage and the gear d meshes with gear c so that the drive of shaft 2 is effected through gears d, c, b, a, 4, 3. One gear of each of the two pairs a, band c, d is provided with 17 teeth or a multiple thereof so that these two gears are both numerators or denominators of the conversion ratio provided which arrangement provides a close approximation to a correct conversion ratio. Sprockets coupled by chains may be used instead of the toothed wheels.
GB3440546A 1946-11-20 1946-11-20 Improvements in or relating to gearing for affording conversion to and from british and metric measure Expired GB641789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3440546A GB641789A (en) 1946-11-20 1946-11-20 Improvements in or relating to gearing for affording conversion to and from british and metric measure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3440546A GB641789A (en) 1946-11-20 1946-11-20 Improvements in or relating to gearing for affording conversion to and from british and metric measure

Publications (1)

Publication Number Publication Date
GB641789A true GB641789A (en) 1950-08-23

Family

ID=10365229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3440546A Expired GB641789A (en) 1946-11-20 1946-11-20 Improvements in or relating to gearing for affording conversion to and from british and metric measure

Country Status (1)

Country Link
GB (1) GB641789A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2367408A (en) * 2000-08-23 2002-04-03 Ugi Licensees Ltd Imperial to metric conversion of a rotary mechanical indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2367408A (en) * 2000-08-23 2002-04-03 Ugi Licensees Ltd Imperial to metric conversion of a rotary mechanical indicator

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