. American engineer and railroad journal . t the top and held perfectly rigid. The bar which car-ries the back knives is made to slide up and down in planedways, countered by weights and controlled by the sliding this arrangement, the back knives are made to act on thestock close to the thimble-plate or support, thereby allowingthe back knives to cut perfectly smooth and free. The backknives are attached to the bar and adjust on the frame and canbe regulated to suit the different diameters to be turned. There are three changes of feed furnished with the machineand two speeds to the con
. American engineer and railroad journal . t the top and held perfectly rigid. The bar which car-ries the back knives is made to slide up and down in planedways, countered by weights and controlled by the sliding this arrangement, the back knives are made to act on thestock close to the thimble-plate or support, thereby allowingthe back knives to cut perfectly smooth and free. The backknives are attached to the bar and adjust on the frame and canbe regulated to suit the different diameters to be turned. There are three changes of feed furnished with the machineand two speeds to the cone to suit [he different diameters ofstock to be turned. Further information can be obtained from the Egan Com-pany, No. H)4-2I4 West Front Street, Cincinnati, O., thebuilders and originators of this machine. A New Screwr pitch Gauge. The accompanying illustration, which shows the gauge fullsize, represents a very handy gauge for measuring the pitchesof screws. The teeth are sharp and clean cut, and it is a reli- ■\ NEW SCREW able gauge by which to grind and test threading tools, at 60°.As will be seen, it is especially convenient for measuring insidethreads. The gauge shown is made to measure 24 different pitches :4. 4*, 5. 5^1 (>. 7. 8, (), 10, 11, Hit, 12, 13, 14, 15, 16, 18, 20,22, 24, 26, 27, 2S, and 30. It is called No. 4 by the maker,Mr. L. S. .Siarrett, of Athol, Mass. Its convenience will berecognized by all machinists and foremen. General Notes. The Akron Tool Company, Akron, O., recently made a largeshipment of the McNeil balanced charging barrows for railroadwork, is now making a large lot of special pattern for the Unit-ed States Government. These barrows were recently adopted,after careful , by one of the oldest blast furnace companiesin Pittsburgh. The Schenectady Locomotive Works recently completed forthe Chicago it Alton Railroad six lo-wheel passenger engineswith 19 X 24-in. cylinders and 70-in. drivers. The boilers arebuilt for 170 lbs
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
