The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 585
r canal. .\t the outlet end of the pipe a Calcoautomatic drainage gate is fitted. Itssensitively balanced shutter automaticallyopens when a difference of head of water 130 THE ARCHITECT AXD ENGINEER pressure of only a few hundredths of aninch occurs between the flow of the dis-charge canal, and the… … passage of the drainage water collectingin the sump. With the rise of the tide on the ex-terior side of the dyke or levee, or anincrease in the head of water in the irri- permits of the minimum of attention be-ing given the system. In fact, usersthroughout the state declare they forgetall about…
Architecture · Building
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