TY - JOUR AU - HOMERSHAM, S C AB - I 95 been exhibited in London by Mr. Slade; it was designcd for raising ore and water, but Mr. Taylor thought it applicable to raising the miners, and directed the attention of the patentee to the subject, but the machine was not successful. In answer to a question from the President, Mr. Buddle said that the Mr.nuddle system was not applicable to the mines at Newcastle, as the men went up and down by the rope. By the use of guides and slides, the rate of drawing the coal to the surface was generally about 18 feet per second, which was not, however, considered sufficient, and a greater velocity was contemplated. No. 632. “ Description of Annular Valves used for Pumps for Water-works, &C.” By Richard Hosking. The annular valve consists of three concentric rings, arranged Annular pyramidally, and resting one upon the other, thereby affording a free passage for the water around the circumference; the upper ring is attached to a stalk, and the two lower ones have internal wings, which serve as guides when the rings are in motion. The chief advantages afforded by these valves are stated to be an increase of water-way and a reduction TI - ON THE CONSTRUCTION OF VALVES USED IN PUMPS FOR RAISING WATER. JF - Minutes of the Proceedings of the Institution of Civil Engineers DO - 10.1680/imotp.1843.24682 DA - 1843-01-01 UR - https://www.deepdyve.com/lp/unpaywall/on-the-construction-of-valves-used-in-pumps-for-raising-water-oiXfbk7Tp0 DP - DeepDyve ER -