Title

James Pitkin demonstrating his Portable Electric Lamp

Caption

James Pitkin demonstrating his Portable Electric Lamp. For mines to the Royal Society in 1887. The demand for a new safety lamp in mines has directed many minds to the application of electricity to this purpose. Some have proposed to use primary batteries; others utilise secondary batteries or accumulators. One of the most portable, compact, and convenient forms is that of Mr. Pitkin.. The three-cell battery gives a light equal to 2.5 candles immediately after removal from the charging source, and lasts for nine or ten hours

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP23A17_467

License type

Rights managed

Available size

60,0Mb (3,3Mb) / 14,3in x 16,2in / 4303 x 4874 (300dpi)

Keywords

James Pitkin demonstrating his Portable Electric Lamp. For mines to the Royal Society in 1887. The demand for a new safety lamp in mines has directed many minds to the application of electricity to this purpose. Some have proposed to use primary batteries others utilise secondary batteries or accumulators. One of the most portable, compact, and convenient forms is that of Mr. Pitkin.. The three-cell battery gives a light equal to 2.5 candles immediately after removal from the charging source, and lasts for nine or ten hours James Pitkin demonstrating his Portable Electric Lamp. For mines