GB420087A - Improvements in or relating to variable speed gears - Google Patents

Improvements in or relating to variable speed gears

Info

Publication number
GB420087A
GB420087A GB1508333A GB1508333A GB420087A GB 420087 A GB420087 A GB 420087A GB 1508333 A GB1508333 A GB 1508333A GB 1508333 A GB1508333 A GB 1508333A GB 420087 A GB420087 A GB 420087A
Authority
GB
United Kingdom
Prior art keywords
clutch
brake
engaged
speed
gearing
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
GB1508333A
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 GB1508333A priority Critical patent/GB420087A/en
Publication of GB420087A publication Critical patent/GB420087A/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
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/62—Gearings having three or more central gears
    • F16H3/66—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another
    • F16H3/663—Gearings having three or more central gears composed of a number of gear trains without drive passing from one train to another with conveying rotary motion between axially spaced orbital gears, e.g. RAVIGNEAUX

Abstract

420,087. Variable-speed gearing. RUSHFIRTH, S., 4, Dorset Road, Lytham-St.-Annes, Lancashire. May 25, 1933, No. 15083. [Class 80 (ii)] Relates to variablespeed gearing suitable for vehicles of the kind comprising aligned driving and driven shafts 7, 12 over the adjacent ends of which is mounted a housing 8 rotatable relatively to both shafts and carrying one or more countershafts 24 with alternative trains of gearing for connecting the countershafts to the main shafts there being centrally moving toothed gear and clutch elements such as 31, 32 therefor and a brake 47 for securing the housing 8 against rotation during countershaft drives. A friction clutch 37 to facilitate gear changing on all ratios is arranged directly between and for coupling together the two main shafts 7, 12, instead of being circumferentially arranged as in the arrangement of Specification 347,788. In addition to two reduced forward speeds and reversed drive with the brake 47 applied, there is a solid high-speed drive with the brake disengaged effected by engaging clutch teeth 38 on the friction clutch member 37 engaging clutch teeth 39 on the driven shaft 12. The member 37 turns with the shaft 7 and is controlled through a central rod 40 from a striking ring 41 which is biassed to the left to engage the top speed clutch 38, 39 by a spring 45. Suitable connections interpose a distance piece, not shown, behind a stop 46 when the brake 47 is engaged to prevent the clutch 38, 39 being engaged during countershaft drives. The ring 41 is engaged at 42 by a connection to an engine clutch, not shown, so that at each disengagement of the latter, the synchronizing friction clutch 37 is engaged, the brake 47 being then always released, so that all parts within the casing rotate with little relative motion to the end that change of mesh can be effected without shock. On release of the clutch pedal, the clutch 37 is disengaged and the drive picks up on the new speed.
GB1508333A 1933-05-25 1933-05-25 Improvements in or relating to variable speed gears Expired GB420087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1508333A GB420087A (en) 1933-05-25 1933-05-25 Improvements in or relating to variable speed gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1508333A GB420087A (en) 1933-05-25 1933-05-25 Improvements in or relating to variable speed gears

Publications (1)

Publication Number Publication Date
GB420087A true GB420087A (en) 1934-11-26

Family

ID=10052717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1508333A Expired GB420087A (en) 1933-05-25 1933-05-25 Improvements in or relating to variable speed gears

Country Status (1)

Country Link
GB (1) GB420087A (en)

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