San Francisco (Calif.). Board of Supervisors · San Francisco, Cal. : Board of Supervisors of the City and County of San Francisco · leaf 44
agitator. After the asphalt ismelted in this kettle, it is forced by compressed air through anoutside jacketed delivery pipe direct to the measuring bucket,from which it is dumped into the mixer. The mixer is of the combination type used for mixing eitherwearing surface or binder. It is provided… … Municipal Asphalt Plant Erected in the Corporation Yard of the Board of Public Works atSixteenth and Harrison Streets. may be readily detached and the shaft carrying the blades formixing wearing surface lifted out and those with the binderblades attached substituted therefor. Each set of shafts…
Civic improvement · City planning · Public works
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