GB767000A - Improvements in or relating to sealing means for preventing the escape of powdered flowable material from a space between relatively rotatable parts - Google Patents

Improvements in or relating to sealing means for preventing the escape of powdered flowable material from a space between relatively rotatable parts

Info

Publication number
GB767000A
GB767000A GB8647/55A GB864755A GB767000A GB 767000 A GB767000 A GB 767000A GB 8647/55 A GB8647/55 A GB 8647/55A GB 864755 A GB864755 A GB 864755A GB 767000 A GB767000 A GB 767000A
Authority
GB
United Kingdom
Prior art keywords
members
clutch
annular
driving member
hub
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
GB8647/55A
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.)
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons England 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 S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical S Smith and Sons Ltd
Publication of GB767000A publication Critical patent/GB767000A/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
    • F16D37/02—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
    • F16D2037/004—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive characterised by multiple substantially axial gaps in which the fluid or medium consisting of small particles is arranged

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

767,000. Electromagnetic brakes and couplings. SMITH & SONS (ENGLAND), Ltd., S. March 24, 1955 [March 25, 1954], No. 8647/55. Class 35. A magnetic powder clutch or brake comprises a driving member having two annular U-shaped channel members 20, 22 embracing two annular field coils 38 and two driven members having cylindrical parts 44, 45 located in the annular space 36 of the driving member two fans 94, 96 being carried on the opposite sides of a disc 92 fixed to driving member 22. The annular space 36 contains the magnetic powder which is substantially presented from escaping therefrom by labyrinth sealing rings 72, 78, 74, 76, 80, 82 carried by the members of the clutch. Any powder escape past the sealing rings is connected in an annular chamber 120 formed between the disc 92 and the hub member 56 of the driven member 54. The powder is stopped from escaping from the chamber 120 by a stream of air circulated by the shrouded fans 94, 96 in the direction shown by the arrows. The outer fan 96 has a larger diameter than that of the inner fan 94. The clutch driven members are mounted on two concentric shafts 48, 59 separated by ball bearings 58. The hub member 84 of the clutch driving member is journalled on the shaft 48 and sealing elements 88, 90 are provided between the member 84 and the adjacent inner portions of the hub members 46, 56 of the driven members. Specification 764,949 is referred to. Reference has been directed by the Comptroller to Specification 649,553, [Group XXXIV].
GB8647/55A 1954-03-25 1955-03-24 Improvements in or relating to sealing means for preventing the escape of powdered flowable material from a space between relatively rotatable parts Expired GB767000A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US767000XA 1954-03-25 1954-03-25

Publications (1)

Publication Number Publication Date
GB767000A true GB767000A (en) 1957-01-30

Family

ID=22133681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8647/55A Expired GB767000A (en) 1954-03-25 1955-03-24 Improvements in or relating to sealing means for preventing the escape of powdered flowable material from a space between relatively rotatable parts

Country Status (1)

Country Link
GB (1) GB767000A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010004410A1 (en) * 2008-07-09 2010-01-14 Toyota Jidosha Kabushiki Kaisha Twin-clutch device
US7999429B2 (en) 2007-05-09 2011-08-16 Toyota Jidosha Kabushiki Kaisha Power transmission apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7999429B2 (en) 2007-05-09 2011-08-16 Toyota Jidosha Kabushiki Kaisha Power transmission apparatus
WO2010004410A1 (en) * 2008-07-09 2010-01-14 Toyota Jidosha Kabushiki Kaisha Twin-clutch device
CN102084150A (en) * 2008-07-09 2011-06-01 丰田自动车株式会社 Twin-clutch device
CN102084150B (en) * 2008-07-09 2013-07-10 丰田自动车株式会社 Twin-clutch device
US8678153B2 (en) 2008-07-09 2014-03-25 Toyota Jidosha Kabushiki Kaisha Twin-clutch device

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