. Electric railway journal . enerators—General View of RigidlyAligned Type of Gear, Showing Casing andOil Piping through the hollow pinion shaft, driving it through a con-nection at the end opposite to the turbine, and through itsflexibility permitting wide variations in alignment. Verticaladjustment of gear and pinion is effected through varia-tions in the quantity of oil contained in the cylinders overthe pistons. Horizontal adjustment of the pinion shaft tobring the two pitch lines of gear and pinion in exact coin- Geared D. C. Turbo-Generators—Rigidly Aligned Gearwith Cover Removed to Show
. Electric railway journal . enerators—General View of RigidlyAligned Type of Gear, Showing Casing andOil Piping through the hollow pinion shaft, driving it through a con-nection at the end opposite to the turbine, and through itsflexibility permitting wide variations in alignment. Verticaladjustment of gear and pinion is effected through varia-tions in the quantity of oil contained in the cylinders overthe pistons. Horizontal adjustment of the pinion shaft tobring the two pitch lines of gear and pinion in exact coin- Geared D. C. Turbo-Generators—Rigidly Aligned Gearwith Cover Removed to Show Ends of SplitPinion Shaft Bearings Since that time a considerable number of such units havebeen sold, and several have seen fifteen to eighteen monthsservice, affording a good opportunity for observation oftheir serviceability and operating characteristics. The distinctive feature of the new gear is the main-tenance of correct tooth contact whatever the exigenciesof operation. Torsional strains, settling of foundations,. Geared D. C. Turbo-Generators—750-kw Unit Installed in Trenton Power Station of Trenton & Mercer County Traction Corporation cidence is effected by two horizontal screws, one at eachend of the pinion-bearing frame, which may be run in orout by hand, thus moving the gears and pinions closertogether or further apart. The toothed retaining wheels onthe ends of these adjusting screws can be seen in the illus-tration on the following page showing the floating-framegear with cover removed. misalignment and the like are automatically corrected inthe gears themselves by the use of the flexibly supportedframe which carries the pinion shaft, the latter being flex-ibly coupled to the turbine. The results of maintaining thiscorrect contact will, of course, be high initial and sustainedefficiency, quiet operation and minimum of wear and ad-justment. 328 ELECTRIC RAILWAY JOURNAL [Vol. XLI, No. 8. Of the first gears installed, eight are driving direct-cur-rent generato
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