GB880866A - Improvements in and relating to pull-wire signalling systems for use in mines, quarries and the like - Google Patents

Improvements in and relating to pull-wire signalling systems for use in mines, quarries and the like

Info

Publication number
GB880866A
GB880866A GB1349158A GB1349158A GB880866A GB 880866 A GB880866 A GB 880866A GB 1349158 A GB1349158 A GB 1349158A GB 1349158 A GB1349158 A GB 1349158A GB 880866 A GB880866 A GB 880866A
Authority
GB
United Kingdom
Prior art keywords
pull
wire
quarries
mines
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
GB1349158A
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.)
WILFRED BRUCE DAVIS
John Davis and Son Derby Ltd
Original Assignee
WILFRED BRUCE DAVIS
John Davis and Son Derby 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 WILFRED BRUCE DAVIS, John Davis and Son Derby Ltd filed Critical WILFRED BRUCE DAVIS
Priority to GB1349158A priority Critical patent/GB880866A/en
Publication of GB880866A publication Critical patent/GB880866A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/064—Power supply or signal cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B19/00—Mining-hoist operation
    • B66B19/06—Applications of signalling devices

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

880,866. Pull-wire signalling systems. DAVIS & SON (DERBY) Ltd., JOHN, and DAVIS, W. B. July 23, 1959 [April 29, 1958], No. 13491/58. Addition to 781,881. Class 78 (5). The pull-wire used in the signalling system of the parent Specification is made of conductors 10, each covered in insulation 11 and together wrapped in tape 13 and then in steel wire braiding, the whole having an outer layer 15 of p.v.c. The wire braiding may carry current.
GB1349158A 1958-04-29 1958-04-29 Improvements in and relating to pull-wire signalling systems for use in mines, quarries and the like Expired GB880866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1349158A GB880866A (en) 1958-04-29 1958-04-29 Improvements in and relating to pull-wire signalling systems for use in mines, quarries and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1349158A GB880866A (en) 1958-04-29 1958-04-29 Improvements in and relating to pull-wire signalling systems for use in mines, quarries and the like

Publications (1)

Publication Number Publication Date
GB880866A true GB880866A (en) 1961-10-25

Family

ID=10023926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1349158A Expired GB880866A (en) 1958-04-29 1958-04-29 Improvements in and relating to pull-wire signalling systems for use in mines, quarries and the like

Country Status (1)

Country Link
GB (1) GB880866A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1995509A2 (en) * 2007-05-25 2008-11-26 Eja Limited Safety arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1995509A2 (en) * 2007-05-25 2008-11-26 Eja Limited Safety arrangement
EP1995509A3 (en) * 2007-05-25 2010-03-03 Rockwell Automation Limited Safety arrangement

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