GB148016A - Improvements in visual signalling apparatus for use in mines - Google Patents

Improvements in visual signalling apparatus for use in mines

Info

Publication number
GB148016A
GB148016A GB1207719A GB1207719A GB148016A GB 148016 A GB148016 A GB 148016A GB 1207719 A GB1207719 A GB 1207719A GB 1207719 A GB1207719 A GB 1207719A GB 148016 A GB148016 A GB 148016A
Authority
GB
United Kingdom
Prior art keywords
rod
dial
dash
detent
mines
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
GB1207719A
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 GB1207719A priority Critical patent/GB148016A/en
Publication of GB148016A publication Critical patent/GB148016A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Lock And Its Accessories (AREA)

Abstract

148,016. Davidson, J. May 14, 1919. Mechanical telegraphs for use in mines.-A vertically slidable dial is moved in stages at each signal impulse and is held in position by a detent, and controlled by a dash-pot device, and by a " cut-out " device acting when the winding-engine is operated. At each operation of the bellpull 8, a pawl 5 on the rod 6 engages with one of the pins 4 on an indicator dial 1 and brings an indication on the dial opposite an aperture. The dial is retained by a detent 4a on the rod 18. The bell-pull also moves a rod 10 which has a pawl 11 engaging a stud 12 on the lever 13, which is controlled by a dash-pot 9. When the dash-pot piston has descended, a striker 16 trips the rod 18 against a spring 17 and releases detent 4a. When the winding-engine is operated, a striker 18a moves the rod 6 against a spring 21 and allows the dial to fall.
GB1207719A 1919-05-14 1919-05-14 Improvements in visual signalling apparatus for use in mines Expired GB148016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1207719A GB148016A (en) 1919-05-14 1919-05-14 Improvements in visual signalling apparatus for use in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1207719A GB148016A (en) 1919-05-14 1919-05-14 Improvements in visual signalling apparatus for use in mines

Publications (1)

Publication Number Publication Date
GB148016A true GB148016A (en) 1920-07-29

Family

ID=9997998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1207719A Expired GB148016A (en) 1919-05-14 1919-05-14 Improvements in visual signalling apparatus for use in mines

Country Status (1)

Country Link
GB (1) GB148016A (en)

Similar Documents

Publication Publication Date Title
GB148016A (en) Improvements in visual signalling apparatus for use in mines
GB454931A (en) Improvements in altimeters for use in aircraft
GB119108A (en) Improved Signalling Apparatus for use in Coal Mines and the like.
GB154772A (en) Improvements in signalling apparatus for use in mines
GB556199A (en) Improvements relating to gauges
GB191405395A (en) Improvements in Signal Indicators or Registers such as are used in Collieries.
GB191410901A (en) A Mechanical Signalling Apparatus for use in Mines and other places.
GB169473A (en) Improvements in and connected with signalling apparatus for use in mines
GB121307A (en) Improvements relating to Indicators for Mine Signalling Apparatus.
GB122136A (en) An Improved Non-accumulative Electric Signalling Indicator for Colliery Shafts and the like.
GB573257A (en) Improvements relating to apparatus for indicating the liquid contents of a tank
GB119514A (en) Improvements in Mine Signalling Apparatus.
GB229384A (en) Improvements in or relating to road signalling apparatus
GB724058A (en) Improvements in or relating to pressure gauges
GB191517918A (en) Improvements in Visual Signalling Indicators for Collieries and the like Works.
GB155143A (en) Improvements relating to padlocks
GB557866A (en) Improvements in dial gauges or indicators
GB176308A (en) Improvements in indicating gauges
GB499569A (en) Improvements relating to pressure gauges
GB451817A (en) Improvements in methods of measuring the magnitude of the force of gravity
GB191411780A (en) Improvements in Signalling Apparatus such as in Employed in Collieries.
GB322477A (en) Automatic switch indicator for electrical prepayment meters
GB187746A (en) Improvements in or relating to time alarms and indicators
GB387502A (en) Improvements in indicators
GB821644A (en) Improvements in or relating to alarm clocks