GB423952A - Improvements in and connected with variable change speed gearing for motor vehicles - Google Patents

Improvements in and connected with variable change speed gearing for motor vehicles

Info

Publication number
GB423952A
GB423952A GB2303233A GB2303233A GB423952A GB 423952 A GB423952 A GB 423952A GB 2303233 A GB2303233 A GB 2303233A GB 2303233 A GB2303233 A GB 2303233A GB 423952 A GB423952 A GB 423952A
Authority
GB
United Kingdom
Prior art keywords
pair
gear
speeds
clutch
entrains
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
GB2303233A
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.)
Scammell Lorries Ltd
Original Assignee
Scammell Lorries 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 Scammell Lorries Ltd filed Critical Scammell Lorries Ltd
Priority to GB2303233A priority Critical patent/GB423952A/en
Publication of GB423952A publication Critical patent/GB423952A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H3/087Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
    • F16H3/093Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears with two or more countershafts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/02Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
    • F16H3/08Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
    • F16H2003/0807Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with gear ratios in which the power is transferred by axially coupling idle gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2200/00Transmissions for multiple ratios
    • F16H2200/003Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0052Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising six forward speeds
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H2714/00Different types speed-changing mechanisms for toothed gearing
    • F16H2714/02Different types speed-changing mechanisms for toothed gearing only with toothed wheels remaining engaged

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Structure Of Transmissions (AREA)

Abstract

423,952. Change-speed gearing. NORTH, O. D., 76, Elm Park Mansions, Park Walk, Chelsea, HUGH, P. G., and SCAMMELL LORRIES, Ltd., 52, High Holborn, both in London. Aug. 17, 1933, No. 23032. [Class 80 (ii)] Change-speed gearing suitable for vehicles comprises two parallel shaft lines 1, 2 each line consisting of shafts positively clutchable together, and means for obtaining more speeds than there are gear pairs, all operable by a manual selector. The arrangement of Fig. 10 comprises four pairs of gears and yields six speeds, with an additional reverse. The driving shaft line 1 comprises shafts 1<b>, 1<a>, connectable by a clutch 1<c>. The driven shaft line 2 comprises shafts 2b, 2<a> connectable by a clutch 2<c>, which also entrains a pair B<4>, A4. A double clutch 1<e> entrains a pair A<2>, B<2> or a pair A<3>, B<3>, and a clutch 2<e> entrains a pair A<1>, B<1>. The gear pairs may alternatively be entrained by sliding into mesh. A one-to-one or direct drive is obtained through the pair A<3>, B<3>. An overdrive results by driving through the pair A<2>, B<2>. Two reduced drives are effected through the pair A<1>, Bl and through the pair A<4>, B<4>, respectively. The extra speeds are two triple reductions, one of which is shown in Fig. 1, through the pair A<1>, B<1>, the pair B<2>, A<2>, and the pair A<4>, B<4>. The other triple reduction is obtained by substituting the pair B<3>, A<3> for the pair B<2>, A<2>. Reversed drive is effected by sliding the gear A<1> into mesh with an idler cluster illustrated in Fig. 8, not shown, connecting to the gear B<1>. There are five forks 22, Fig. 11, on sliding rods 15 arranged around a shaft 12, Fig. 12, which is turned to select and slid axially to operate. A finger 13 fast on the shaft 12 is turned to engage bosses 14 on the rods 15, each in turn, and a hand lever is moved to positions 1, 2, 3, 4, 5, 6, and R, Fig. 9, in a gate shaped as shown to effect the six forward speeds and the reverse. A locking plate 7, Fig. 11, turns with the finger 13 to lock the rods 15 not selected, while the finger slides through the plate. A detent lever 17, Fig. 12, supported on a fixed bracket 16, locks the parts in gear positions.
GB2303233A 1933-08-17 1933-08-17 Improvements in and connected with variable change speed gearing for motor vehicles Expired GB423952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2303233A GB423952A (en) 1933-08-17 1933-08-17 Improvements in and connected with variable change speed gearing for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2303233A GB423952A (en) 1933-08-17 1933-08-17 Improvements in and connected with variable change speed gearing for motor vehicles

Publications (1)

Publication Number Publication Date
GB423952A true GB423952A (en) 1935-02-12

Family

ID=10189005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2303233A Expired GB423952A (en) 1933-08-17 1933-08-17 Improvements in and connected with variable change speed gearing for motor vehicles

Country Status (1)

Country Link
GB (1) GB423952A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092964A1 (en) * 1982-04-28 1983-11-02 Automotive Products Public Limited Company Change speed transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092964A1 (en) * 1982-04-28 1983-11-02 Automotive Products Public Limited Company Change speed transmission

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