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Scientific American, Vol. 90, No. 8 (1904) (1904)
leaf 12
SK TYPE OF WATER METER. centric with the pivot, and the other left square. When general use. The improved attachment is so arranged The design of a successful water meter is no simple that it will fit any size of trace, whereas the old at- task. The primary requisite, of course, is accuracy.… … the other hand, danger to human life is ever present. THE DISK TYPE OF WATER METER. © 1904 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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