. The Street railway journal . SCREW FRICTION CLUTCH. New Glass Oil Cup for Dynamos and GeneralEngine Bearings. The accompanying engraving shows the new Lun-kenheimer Crown index, sight feed, glass oil cup, man-ufactured by the Lunkenheimer Company, of cup is provided with an index device for regu-lating the flow of oil, and an indicator arm turning on thelid to mark the notch, giving the desired feed. Whendesired, the feed can be instantly turned off and on againby replacing the index lever in the notch of the indicator.

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Keywords: ., bookcentury1800, bookdecade1880, bookidstreetrailwa, bookyear1884