. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nment, and itis counterweighted, thus making it easyto raise and lower. Further information regarding the toolwill be gladly given by the manufacturers,J. A. Fay & Egan Co., of Cincinnati, O. Oliver Lippincott photographer 20 John Street, New York Process and Mechanical Prints Perfect reproduction from Tracings,Black Lines, White Paper, any size, forSpecifications and Estimates. given showing the area of to which these bolts have beenapplied. Write to the company inPittsburgh
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . nment, and itis counterweighted, thus making it easyto raise and lower. Further information regarding the toolwill be gladly given by the manufacturers,J. A. Fay & Egan Co., of Cincinnati, O. Oliver Lippincott photographer 20 John Street, New York Process and Mechanical Prints Perfect reproduction from Tracings,Black Lines, White Paper, any size, forSpecifications and Estimates. given showing the area of to which these bolts have beenapplied. Write to the company inPittsburgh if you would like to have alook at the folders concerning thefate Flexible staybolts. Some Observations on Sound. liv Gi;oi((;k SiiKRwaju knows the appearance of abass drum, with its cylindrical woodenshell, its parchment heads, its zig-zaglacing cord and its row of leather lugsfor tightening down the heads. When thedrum is struck it gives forth a deep is only our perception of a par-ticular kind of air disturbance; but thequestion arises, why is that kind of air. The Flannery Bolt Company ofIittsburgh, Pa., are the makers of theTate Flexible staybolt. Mr. B. , general manager of the com-pany, has recently issued a couple of^ery interesting folders, one regardinginstallation, inspection and test, theother on the general application ofthese flexible stays to locomotive boil-ers. A million of these bolts are saidto be in use on eighty-eight railroadsin the United States. Illustrations are NEW BAND RESAW. agitation produced when the drum isbeaten? At the moment when the drum isstruck the parchment in the center of thehead is carried down or in a short dis-tance under the padded head of the drumstick by the force of the blow. Afterthe stroke the stick is very rapidly drawnaside and the membrane swiftly springsback and bulges out almost as far beyondits normal position as the drum stickhad driven it in. The whole drum headthus swings in and o
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
