. American engineer and railroad journal . satisfactory for steam hammers, air compressors,engines, as well as for pumps of all kinds, to which they areparticularly adapted. It is Proposed to Hold a Smoke Abatement Exhibition in Lon-don next spring. The exhibition, which is being arranged by theCoal Smoke Abatement Society, will be held at the Royal Agri-cultural Hall, and will last a fortnight. 418 AMERICAN ENGINEER AND RAILROAD JOURNAL October, 1911. A PORTABLE ELECTRIC RADIAL DRILL WENTWORTH INSTITUTE The very efficient portable electric drill lierewitli illustratedhas been recently placed
. American engineer and railroad journal . satisfactory for steam hammers, air compressors,engines, as well as for pumps of all kinds, to which they areparticularly adapted. It is Proposed to Hold a Smoke Abatement Exhibition in Lon-don next spring. The exhibition, which is being arranged by theCoal Smoke Abatement Society, will be held at the Royal Agri-cultural Hall, and will last a fortnight. 418 AMERICAN ENGINEER AND RAILROAD JOURNAL October, 1911. A PORTABLE ELECTRIC RADIAL DRILL WENTWORTH INSTITUTE The very efficient portable electric drill lierewitli illustratedhas been recently placed on the market by the Lamb ElectricCompany, of Grand Rapids, Mich. The machine will bore hole?up to one inch diameter in any position. Its extreme height is40 in. and the greatest distance from the spindle to the basej8 in. The total weight of the drill is between 130 lbs. and150 lbs., according to the kind of motor used. The illustration well depicts the universitality of the machineIt may be clamped to the work if desired, and when once. clamped is ready for use, the adjustment necessary being theraising or lowering of the drill by the handle at the top, rotat-ing about the steel column or rotating about the drill arm. Itwill save considerable time on large heavy work that cannotbe conveniently handled by large radial drills. The largest drilling radius is 8J4 in., but any of these limita-tions may be made greater to suit conditions. The column ismade of steel tubing, 2Vj in, diameter. The spindle has asocket for a No. 3 Morse taper, and has a travel of 5 in. bymeans of a rack and pinion which may be operated by thehand wheel or by power through the worm and wheel as machine may be equipped with a quick return when soordered. If desired, two speeds will be furnished and thechange from one to the other may be made instantly by theshifting of a knob. It is Believed that within live years the subway lines ofGreater New York will be carrying 800,000,000 passengersper yea
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
