公开(公告)号：GB189921819A

公开(公告)日：1900-01-06

申请号：GB189921819D

申请日：1899-10-31

Applicant: STEWART WILLIAM FRASER ,  KOHLMEYER AUGUST HERMAN

Inventor： STEWART WILLIAM FRASER ,  KOHLMEYER AUGUST HERMAN

Abstract: 21,819. Stewart, W. F., and Kohlmeyer, A. H. Oct. 31. Suction filters; cleansing; testing.-Consists of an improved filter plant and filter of low-pressure type in which filtration under pressure is effected. The filter comprises a number of stones 1 connected in groups to pipes 3, which discharge through valves 7 into a common pipe 4. Water is drawn through the filter and forced into a storage tank 13 by a pump 12, preferably driven by a water motor having a piston of about the diameter of the pump piston, and the discharge from which forms the main supply to the filter, while the pipe 15 and float valve 16 furnish an auxiliary supply. The pipes 3 are connected by pipes 9 and valves 21 to the pump discharge, and are also fitted with faucets 8 to which an air pump may be connected to test each group of stones for leaks &c. By manipulation of the valves 27,7, and 21, the stones may be cleansed all together, or in separate groups, by forcing back clean water through them.

公开(公告)号：US1028146A

公开(公告)日：1912-06-04

申请号：US1911616400

申请日：1911-03-23

Applicant: STEWART WILLIAM FRASER

Inventor： STEWART WILLIAM FRASER

CPC classification number: F22B21/26