Recent improvements in arts, manufactures, and mines : being a supplement to his Dictionary (1844)
Ure, Andrew, 1778-1857, Ure, Andrew, 1778-1857. Dictionary of arts, manufactures, and mines · London : Printed for Longman, Brown, Green, and Longmans · leaf 128
ed on the meter, and when one or two hundred cubic feet of gas have been consumed, compare the indices. These meters are not for measuring small fractional parts ; but taking the average for any periodical consumption, are more accurate than any other meter. Mr. Thomas Edge, of Great Peter Street,… … Fig. 66. is a transverse section of the same. The gas enters at a into the small chamber b, in the bottom of which is a lever valve (part of Mr. Edge's patent improvements), moving upon its axis and attached by the rod to a metal float c, which in the present drawing is buoyant. The object of this…
Industrial arts · Technology
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten19unit-322-0.webp)
