GB624622A - Improvements in or connected with yariable speed gear transmissions - Google Patents

Improvements in or connected with yariable speed gear transmissions

Info

Publication number
GB624622A
GB624622A GB1685946A GB1685946A GB624622A GB 624622 A GB624622 A GB 624622A GB 1685946 A GB1685946 A GB 1685946A GB 1685946 A GB1685946 A GB 1685946A GB 624622 A GB624622 A GB 624622A
Authority
GB
United Kingdom
Prior art keywords
detent
detents
shaft
wheels
solenoids
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
GB1685946A
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.)
Avery Weigh Tronix Ltd
Original Assignee
W&T Avery 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 W&T Avery Ltd filed Critical W&T Avery Ltd
Priority to GB1685946A priority Critical patent/GB624622A/en
Publication of GB624622A publication Critical patent/GB624622A/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
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F16H37/084—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths at least one power path being a continuously variable transmission, i.e. CVT
    • F16H37/0846—CVT using endless flexible members
    • 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

Landscapes

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

Abstract

624,622. Variable-speed and reversing-gearing. AVERY, Ltd., W. & T., and HINDE, P. B. June 4, 1946, No. 16859. [Class 80 (ii)] In a variable-speed gear applicable to testing machines of the kind described in Specification 624,621, [Group XIX], constant and variable-speed driving pulleys 6, 7, Fig. 1; power through a co-axial sleeve and shaft 16, 15 respectively two elements 17, 18 of a differential whose third element 19 drives an epicyclic reversing gear 20 controlled by ratchet detent wheels 26, 26a, 28, 30 actuated by means operated by the movements of the steel-yard of the testing machine such as solenoids 34, 34a, Fig. 3. As shown, the pulleys 6, 7 are belt driven from invariable and expending pulleys 3, 4 respectively mounted on the spindle of an electric motor 1. The diameter of the spring pulley 4 is adjusted by a swinging jockey pulley 9 controlled by a nut 12 screwing along a rod 11 turned by a handwheel (not shown). The nut 12 also operates an indicating pointer 13a moving over a graduated scale, on the mechanism housing. The epicyclic reversing gear comprises a driving planet carrier 20 having clusters of three stepped planets 21 engaging suns 22 - 24 respectively. The sun 22 is rigid with the output shaft 25, which also carries two oppositely directed ratchet wheels 26, 26a, while the suns 23, 24 each carry one of two oppositely directed ratchet wheels 28, 30. The wheels 28, 30 are respectively engaged by detents 33b, 33c, Fig. 4, actuated by the solenoids 34, 34a through spring-loaded levers 31, 31a and plungers 32, 32a. The plunger 32 acts on the detent 33b via a supplementary lever 38. The wheels 26, 26a are respectively engaged by two spring-pressed detents 33, 33a rotating with the detents 33c, 33b respectively. With both solenoids de-energised the detents 33, 33a hold the output shaft 25 from rotation in either direction. Energisation of the solenoid 34 depresses the plunger 32 to release the detent 33a and engage the detent 33b to cause rotation of the shaft 25 in one direction, and energisation of the solenoid 34a depresses the plunger 32a to release the detent 33 and engage the detent 33c to cause rotation of the shaft 25 reversely. A wedge bolt 35, Fig. 1, is manually slidable to disengage all the detents for 'independent manual rotation of the shaft 25.
GB1685946A 1946-06-04 1946-06-04 Improvements in or connected with yariable speed gear transmissions Expired GB624622A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1685946A GB624622A (en) 1946-06-04 1946-06-04 Improvements in or connected with yariable speed gear transmissions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1685946A GB624622A (en) 1946-06-04 1946-06-04 Improvements in or connected with yariable speed gear transmissions

Publications (1)

Publication Number Publication Date
GB624622A true GB624622A (en) 1949-06-14

Family

ID=10084971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1685946A Expired GB624622A (en) 1946-06-04 1946-06-04 Improvements in or connected with yariable speed gear transmissions

Country Status (1)

Country Link
GB (1) GB624622A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120235B (en) * 1956-07-16 1961-12-21 Rockwell Federn Epicyclic gearbox driven by two belt change gears
DE1185883B (en) * 1959-10-09 1965-01-21 Massey Ferguson Inc Gear arrangement with power split
GB2276636A (en) * 1993-03-30 1994-10-05 Sipra Patent Beteiligung Take-down device for flexible goods

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120235B (en) * 1956-07-16 1961-12-21 Rockwell Federn Epicyclic gearbox driven by two belt change gears
DE1185883B (en) * 1959-10-09 1965-01-21 Massey Ferguson Inc Gear arrangement with power split
GB2276636A (en) * 1993-03-30 1994-10-05 Sipra Patent Beteiligung Take-down device for flexible goods
US5457967A (en) * 1993-03-30 1995-10-17 Sipra Patententwicklungs Und Beteiligungsgesellschaft Mbh Draw-off device with adjustable tension for circular knitting machine
GB2276636B (en) * 1993-03-30 1996-11-06 Sipra Patent Beteiligung Take-down device

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