. Railway mechanical engineer . oiledby the splash system, and the overflow of luliricant returnsto a central tank by gravity. The planer bed is of box section type, thoroughly rein-forced. The wide supporting surface of each V is inclined15 degrees to the horizontal, permitting the formation of auniform oil film under the most severe conditions. The innerleg is inclined 15 degrees to the perpendicular, functioningas a guideway. The proportioning of the two is such thatthe wear is self-comi^ensating. The pockets for luliricating View Showing Motor Drive Arrangement trated, high-speed reversing
. Railway mechanical engineer . oiledby the splash system, and the overflow of luliricant returnsto a central tank by gravity. The planer bed is of box section type, thoroughly rein-forced. The wide supporting surface of each V is inclined15 degrees to the horizontal, permitting the formation of auniform oil film under the most severe conditions. The innerleg is inclined 15 degrees to the perpendicular, functioningas a guideway. The proportioning of the two is such thatthe wear is self-comi^ensating. The pockets for luliricating View Showing Motor Drive Arrangement trated, high-speed reversing parts have been entirely elim-inated, thereby greatly reducing the wear and tear as wellas the power required for reversing. It is essential tliat an efficient planer furnish the variousspeeds and feeds for different materials, as well as a of the platen. Four speeds, therefore, are providedand a constant quick return which is independent of the. Ryerson-Conradson Planer With Pneumatic Feeds and Reversing Ciutch cutting speeds. For general machine shop work, cuttingspeeds of 25, 30, 37J/2 and 45 ft. per min. are provided inthe heavier types, with a return speed of 100 ft. ]Hr min.,all of which may be varied to suit requirements. The motor is directly connected to the main drive shaftby a Clark flexible coupling. The primary shaft carriestwo-spool gears, and on the extreme end of this shaft thereversing pinion engages directly with the return clutch change gears are mounted on a square shaft and areshifted by a lever mounted in a gridiron. The |iinion on the ways are automatically filled with the oil carried up bythe bull wheel. Each end of the bed carries a large apronextending beyond the maximum travel of the table for catch-ing all surplus oil which, after filtering, returns to the centraltank by gravity. The driving mechanism of the rack feed constitutes a de-parture from customary practice. -A piston, operated pne
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
