. The Street railway journal . bre conduit is made of wood fibre, treated with an insulatingand preserving compound producing a hard and solid substance. It ismade into tubes on a machine designed for the purpose by Prof. HenryFairbanks and Howard Parker, of St. Johnsbury, Vt., the product andmachines being protected by numerous patents. The tubes are com-pletely saturated with a mixture which makes it acid and alkali proof. The finished pipe is in five foot lengths, and is uniform in thick-ness, with smooth surfaces. Sections with connections are shown here-with. As the conduit is an insulato
. The Street railway journal . bre conduit is made of wood fibre, treated with an insulatingand preserving compound producing a hard and solid substance. It ismade into tubes on a machine designed for the purpose by Prof. HenryFairbanks and Howard Parker, of St. Johnsbury, Vt., the product andmachines being protected by numerous patents. The tubes are com-pletely saturated with a mixture which makes it acid and alkali proof. The finished pipe is in five foot lengths, and is uniform in thick-ness, with smooth surfaces. Sections with connections are shown here-with. As the conduit is an insulator, there can be no danger of itsdecomposition by electrolysis, which has caused so much trouble in anumber of cities where electric railways are in operation. The conduit is also non absorbent, nor does it contract or expandwith varying temperature; it is, therefore, free from the splitting andchecking, corrosion and disintegration which injure wood and iron. Itis also tough, elastic and strong. A standard three inch pipe will.
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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884
