File:"Armco" iron rust-resisting products. (1915) (14598176300).jpg

Identifier: armcoironrustres00amer (find matches)
Title: "Armco" iron rust-resisting products.
Year: 1915 (1910s)
Authors: American Rolling Mill Company
Subjects: American Rolling Mill Company Iron, Structural
Publisher: Middletown, Ohio : American Rolling Mill Co.
Contributing Library: University of Maryland, College Park
Digitizing Sponsor: LYRASIS members and Sloan Foundation

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in flumesis made every engineer or owner wants his flume to withstand the corrosiveelements of acidulated or slightly alkaline waters to the greatest possibleextent. ARMCO flumes are made from ARMCO Iron, 99.84% pureIron, and possess 2 oz. per sq. ft. of zinc coating. This feature providesa flume in which the original cost is the only investment. CONSTRUCTION The ARMCO flume is made of galvanized ARMCO sheets formedto a semicircle, clamped together and suspended by rods from the girdersof the sub-structure. The sheets have semi-circle beads or corrugations in each edge and thebeads of adjacent sheets fit one into the other and the bead is filled with ahalf-round clamped iron rod. The sheets are supported by round rods with threads and nutson each end, and the rods either extended through the wooden carrierssupported on the sub-structure, or extended through metal hanger platesattached to the top of the girders. 59 &*?P A R. >t O O B R. A N E> SPECIAL FEATURES OF ARMCO FLUME
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1. The joints are perfectly smooth, hence the coefficient of frictionis very low. This insures a much higher carrying capacity than roughjoints. (Note capacity table on page 60.) 2. It requires no cross bars on top on the small and medium sizes.This makes it much cheaper to erect, because it saves the cost of thewood cross bars and the cost of boring the holes for carrier rods. It elimin-ates the obstructions which collect branches, leaves, floating weeds, etcSuch obstructions often dam up the flume thereby causing the water tooverflow the sides. 3. The strongest and most reliable joint possible, without the use of solder. 4. Each section takes care of its own expansion and contractionthereby making expansion joints unnecessary. The ARMCO flumealways remains water-tight in hot and cold weather. 5. Round supporting rods directly in line with the joint rods, theformer pulling the joints together with tension, and the latter pushing thejoints together by compression. 6. ARMCO flume Irrrc

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