Jeffrey elevating-conveying power transmission machinery; Coal mine equipments

 
9781130630572: Jeffrey elevating-conveying power transmission machinery; Coal mine equipments
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: ... 8.20 8.55 8.95 9.30 9.70 10.15 10.60 12.35 12.90 13.45 14.00 14.55 16.50 17.25 18.00 18.75 19.50 20.30 21.15 23.30 24.15 25.00 25.85 26.70 27.60 32.70 34.65 36.60 38.70 40.85 46.15 48.45 50.75 53.05 12 $10.80 11.25 11.50 12.00 12.50 13.10 15.35 16.00 16.65 17.30 18.00 20.40 21.30 22.25 23.15 24.10 24.95 25.85 29.35 30.35 31.30 32.30 33.30 34.30 40.15 42.30 44.50 46.90 49.30 56.20 58.80 61.40 64.00 14 $13.15 13.80 14.40 15.15 17.60 18.00 18.80 19.65 20.45 22.95 23.90 24.90 25.85 26.80 27.80 28.80 32.40 33.50 34.60 35.70 36.80 37.90 44.00 46.40 48.80 51.40 54.10 61.30 64.20 67.20 70.20 The Jeffrey lmproved Split lron Pulley Bushing is cast and finished in one piece, so that its exterior and interior surfaces fit respectively, the bore of the pulley and the surface of the shaft for a maximum of gripping surface. All bushings are sawed into halves at the factory, requiring no fitting by the purchaser to put the pulley into service, other than to bolt it into place and turn down the set screws through the bushings to the shaft. With the Jeffrey combination of long and short bushings, practically the full length of the pulley hub is maintained as a gripping surface. Jeffrey Solid and Split Iron Pulleys Machine Moulded, Turned, Balanced, Bored and Keyseated or Set Screwed These pulleys, while embodying all the qualities of machining as noted above, are designed not only along theoretical lines to meet the strains of driving, but are also designed along those practical lines which long experience has dictated for rough and exact service. When ordering pulleys with offset hubs, specify same relative to centre line of pulley. Prices of Special and Fly W heel Pulleys furnished upon application. Jeffrey Solid and Split Iron Pulleys Machine Moulded, Turned, Balanced, B...

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