Home-farm power and lighting, a book of helpful instruction on the installation (1920)
Cincinnati, American automobile digest · leaf 74
r lag screws, somerecommending pillars be set intothe concrete, while others recom-mend expansion sleeves, similar to that illus-trated in Fig. 37. Some also recommend an-choring the bolts directly in the concrete asshown in Fig. 39. It is hardly necessary to gointo the details of mixing the… … Fig. 37. Expan-sion sleeve for alag screw. 62 Home-Farm Power and Lighting.
Electricity in agriculture · Electric lighting · Internal combustion engines
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
