Chicago : Engineering and Contracting Pub. Co. · leaf 359
arkin Co. The Ransomemixers themselves and the hoists which con-vey the concrete to the upper stories aredriven by 30-h. p. motors. At each mixer Fig. 3 two men are steadilyemployed, one taking care of the charging,adding water, etc., and another cutting theties of the cement and adding the bags… … 3D HP Motor 20>8 Pulley iPier ^ Pullet/ I 24 8 Pulley165 PPM
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
