GB757159A - Improvements in or relating to a stairway hoist - Google Patents

Improvements in or relating to a stairway hoist

Info

Publication number
GB757159A
GB757159A GB23949/54A GB2394954A GB757159A GB 757159 A GB757159 A GB 757159A GB 23949/54 A GB23949/54 A GB 23949/54A GB 2394954 A GB2394954 A GB 2394954A GB 757159 A GB757159 A GB 757159A
Authority
GB
United Kingdom
Prior art keywords
aug
pulley
stairway
hoist
relating
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
GB23949/54A
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.)
U S AUTOMATIC CORP
Original Assignee
U S AUTOMATIC CORP
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 U S AUTOMATIC CORP filed Critical U S AUTOMATIC CORP
Publication of GB757159A publication Critical patent/GB757159A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/06—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces
    • B66B9/08—Kinds or types of lifts in, or associated with, buildings or other structures inclined, e.g. serving blast furnaces associated with stairways, e.g. for transporting disabled persons
    • B66B9/0807—Driving mechanisms
    • B66B9/0823—Screw and nut

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

757,159. Friction clutches. U.S. AUTOMATIC CORPORATION. Aug. 17, 1954 [Aug. 26, 1953; Aug. 2, 1954], No. 23949/54. Class 80(2) [Also in Groups XXX and XXXIV] In a platform elevator (see Group XXX) the drive between an electric motor and a pulley 99 is effected by a speed responsive clutch comprising an inner driving member 61 keyed to the motor shaft 60 and having around its periphery a flexible tube 63 of rubber or the like containing mercury 64, and a driven member 62 secured to the pulley 99. The arrangement being such that, at a predetermined speed, the centrifugal force on the mercury produces frictional driving contact between the tube and member 62.
GB23949/54A 1953-08-26 1954-08-17 Improvements in or relating to a stairway hoist Expired GB757159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US757159XA 1953-08-26 1953-08-26

Publications (1)

Publication Number Publication Date
GB757159A true GB757159A (en) 1956-09-12

Family

ID=22127550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23949/54A Expired GB757159A (en) 1953-08-26 1954-08-17 Improvements in or relating to a stairway hoist

Country Status (1)

Country Link
GB (1) GB757159A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571036A1 (en) * 1984-09-28 1986-04-04 Plagnat Jean Cyrille Carrying-seat, for a physically disabled person, operating in a straight staircase
CN106966265A (en) * 2017-04-10 2017-07-21 于学文 A kind of stair climbing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2571036A1 (en) * 1984-09-28 1986-04-04 Plagnat Jean Cyrille Carrying-seat, for a physically disabled person, operating in a straight staircase
CN106966265A (en) * 2017-04-10 2017-07-21 于学文 A kind of stair climbing device

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