safety lamp उदाहरण वाक्य

उदाहरण वाक्य

1. The renowned Pontyberem safety lamps were made by John Jones ( 1879 1976 ) who worked as Colliery Chief Mechanic at Pentremawr Colliery.
2. The report states : " These gauze or safety lamps were not Davy lamps, but of a kind in common use throughout Scotland.
3. He championed the better management of safety lamps and encouraged the work of those like William Reid Clanny who made improvements to lamps.
4. It is highly explosive and had previously been detected by the blue halo effect it gave to the flame of a safety lamp.
5. Even after the introduction of safety lamps this was still essential information, see Trimdon Grange for details of an accident where pressure was involved.
6. Some degree of safety was provided by the safety lamp which was invented in 1816 by Sir Humphry Davy and independently by George Stephenson.
7. A modern-day equivalent of the Davy lamp is the Protector Garforth GR6S flame safety lamp which is used for firedamp testing in all UK coal mines.
8. Often red and white paint and flight safety lamps have to be installed on high structures ( taller than 100 metres ) far away from airports.
9. Before the development of the safety lamp for use in coal mines, dried fish skins were used in Britain and Europe as a weak source of light.
10. The height of the cone of burning methane in a flame safety lamp can be used to estimate the concentration of the gas in the local atmosphere.