. Electric railway journal . uble, as it has nomoving parts, is electrically indestructible, and contains nometal aside from the terminals. The arrester is also freefrom all forms of carbon. The block type of this arrester is enclosed in weather-proof wooden boxes when made for line or car use. Itis recommended that for line use the arresters should bedistributed five to the mile and connected with the samemakers Hydro-Ground grounding device, described inthe Electric Railway Journal of June 19. In the caseof car protection it is suggested that the arrester be con-nected directly to the trolle
. Electric railway journal . uble, as it has nomoving parts, is electrically indestructible, and contains nometal aside from the terminals. The arrester is also freefrom all forms of carbon. The block type of this arrester is enclosed in weather-proof wooden boxes when made for line or car use. Itis recommended that for line use the arresters should bedistributed five to the mile and connected with the samemakers Hydro-Ground grounding device, described inthe Electric Railway Journal of June 19. In the caseof car protection it is suggested that the arrester be con-nected directly to the trolley base by a separate conductorand the truck or motor body by another conductor. Thiswill make the lightning arrester circuit on the car inde-pendent of other circuits, and establish a direct path fromthe trolley base to the running rails. A REVERSED CYLINDER PRESS The Watson-Stillman Company, New York, has just in-troduced a reversed cylinder forcing press, which shouldprove a handy tool for pressing bearings and for miscel-. Reversed Cylinder Press laneous work. As will be seen from the illustration, acrane bracket and beam extending from one end enablesthe operator to swing a heavy piece of work on to bracketshelves extending out from each side of the bottom shelves, 30 in. x 12 in., are detachable, can be lifted July 3, 1909.] ELECTRIC RAILWAY JOURNAL. 45 off on jobs where they would be in the way, and are suffi-ciently strong to support any work that will go into themachine. They will be appreciated by those who havehad to push castings or parts into place on the ordinarysmall platen. The motor, mounted upon pedestals on topof the press, drives the pump shaft through single reduc-tion gearing. If desired, a hand or belted drive is fur-nished, instead of the motor. On the other end of thepump shaft are two eccentrics, each driving one of thepistons of a Y^-ivi. x 2-in. twin pump, for which the pedestallegs act as reservoirs. The operating valve is of the single-
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