Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Otto Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190417307ApublicationCriticalpatent/GB190417307A/en
17,307. Walter, O. Sept. 21, A.D. 1903, [date applied for under Patents Act, A.D. 1901]. Water, purifying.-The disadvantages arising from the use of milk of lime or like reagent after standing are removed by the periodic withdrawal of the requisite quantities from a current of the material. A pump a creates a circulation through the pipes b, c and the tank d, liquid being drawn off periodically by a valve e controlled by the watermeasuring device f.
GB190417307D1903-09-211904-08-08Improvements in and relating to Water-purifying Apparatus.
ExpiredGB190417307A
(en)