GB249747A - An improved change speed gear - Google Patents

An improved change speed gear

Info

Publication number
GB249747A
GB249747A GB2258725A GB2258725A GB249747A GB 249747 A GB249747 A GB 249747A GB 2258725 A GB2258725 A GB 2258725A GB 2258725 A GB2258725 A GB 2258725A GB 249747 A GB249747 A GB 249747A
Authority
GB
United Kingdom
Prior art keywords
shaft
gear
gears
brakes
loose
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
GB2258725A
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
Priority to GB2258725A priority Critical patent/GB249747A/en
Publication of GB249747A publication Critical patent/GB249747A/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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/04—Combinations of toothed gearings only
    • 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
    • F16H63/30—Constructional features of the final output mechanisms
    • F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
    • F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Braking Arrangements (AREA)

Abstract

249,747. Fornaca, G. Sept. 10, 1925. Variable-speed gearing suitable for railroad motor cars has epicyclic trains for its lower speeds brought in by brakes, and ordinary toothed pairs for its higher speeds brought in by friction clutches, the whole being pneumatically controlled. A gear 7 fast on the driven shaft 20 meshes with a gear 6 loose on the driving-shaft 10. The gear 6 is connected to the shaft 10 by two separate epicyclic trains 5, 3, 2, 1 and 5<1>, 3<1>, 2<1>, 1<1>. Thus two lowest speeds are effected by applying brakes to drums 4, 4<1> respectively. Gears 14, 14<1> fast on the shaft 20 mesh with gears 15, 15<1> loose on the shaft 10 and adapted to be connected thereto by cone clutches 13, 13<1>. The gears 15, 15<1> are slidable as a unit by a lever 17, Fig. 3, thrust to one side and the other by pneumatic pistons 19 19'. The brakes are preferably shoes 9, Fig. 2, contracted in pairs by two doubleended cylinders such as 12. Suitable selector means is employed.
GB2258725A 1925-09-10 1925-09-10 An improved change speed gear Expired GB249747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2258725A GB249747A (en) 1925-09-10 1925-09-10 An improved change speed gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2258725A GB249747A (en) 1925-09-10 1925-09-10 An improved change speed gear

Publications (1)

Publication Number Publication Date
GB249747A true GB249747A (en) 1926-04-01

Family

ID=10181840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2258725A Expired GB249747A (en) 1925-09-10 1925-09-10 An improved change speed gear

Country Status (1)

Country Link
GB (1) GB249747A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995861A (en) * 1988-12-23 1991-02-26 Mannesman Aktiengesellschaft Mechanical shiftable three speed planetary transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995861A (en) * 1988-12-23 1991-02-26 Mannesman Aktiengesellschaft Mechanical shiftable three speed planetary transmission

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