. Railway mechanical engineer . -lilication to freight cars of any type. EMERGENCY JACKS The jacks illustrated herewith include several interesting featureswhich are especially valuable in equipment designed for emer-gency use. They have recently been added to the line of Jack Manufacturing Company, Alliance. Ohio. The features of special interest are the swivel top, to which ispivoted an auxiliary hook for low lifting operations and an aux-iliary heel plate which enables the operator to use the jack at anangle without blocking up. An adjustable auxiliary lift is shownon one of the
. Railway mechanical engineer . -lilication to freight cars of any type. EMERGENCY JACKS The jacks illustrated herewith include several interesting featureswhich are especially valuable in equipment designed for emer-gency use. They have recently been added to the line of Jack Manufacturing Company, Alliance. Ohio. The features of special interest are the swivel top, to which ispivoted an auxiliary hook for low lifting operations and an aux-iliary heel plate which enables the operator to use the jack at anangle without blocking up. An adjustable auxiliary lift is shownon one of the jacks, which may be quickly adjusted to the loadwithout sacrificing a portion of the lifting range of the jack. The foot of the jack is so designed that the auxiliary heel platemay be applied in two positions at right angles to each other,tlius permitting the operation of the jack tilted either sideways tir forward. tool in The heel plate provides a substantial footing for theposition without the necessity of special Jacks with Adjustable Heel Plates When so desired it may be rcmuved and the jack operated uponits own base. In designing these tools special attention has been given tothe elimination of unnecessary parts in order that the numberof repair parts required may be kept at a minimum. The partsare easily assenililed. ami repairs may be made by the ordinaryshop labor. FRICTION SPRING DR.\FT RIGGING The Slick friction spring draft rigging, which is inthe accompanying illustration, consists of a number of springsformed of comparatively thin steel plates. These plates aresquare or rectangular and are corrugated, the axes of the cor-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
