GB148016A - Improvements in visual signalling apparatus for use in mines - Google Patents
Improvements in visual signalling apparatus for use in minesInfo
- 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
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.
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) |
-
1919
- 1919-05-14 GB GB1207719A patent/GB148016A/en not_active Expired
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 | |
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 | |
GB526932A (en) | Improvements in or relating to linear dimension gauges |