. Railway age gazette . rwithout a graduated speed resistance controller. In the con-struction of these hoists the interchangeability of the parts hasbeen made a careful study. The standard sizes of the type Delectric hoist, shown in the illustration, range from 1,000 to12,000 lb. capacity. This hoist may also be attached to anystandard trolley. LINK GRINDING MACHINE The 11,000 lb. link grinder shown in the engraving was de-signed and built by the Newton Machine Tool Works, Inc.,Philadelphia. The links are located on the fixture mounted onthe table. The radius is gaged from the center of the l
. Railway age gazette . rwithout a graduated speed resistance controller. In the con-struction of these hoists the interchangeability of the parts hasbeen made a careful study. The standard sizes of the type Delectric hoist, shown in the illustration, range from 1,000 to12,000 lb. capacity. This hoist may also be attached to anystandard trolley. LINK GRINDING MACHINE The 11,000 lb. link grinder shown in the engraving was de-signed and built by the Newton Machine Tool Works, Inc.,Philadelphia. The links are located on the fixture mounted onthe table. The radius is gaged from the center of the link to thecenter of a pivot at the rear of the machine and is measured by ascale. The maximum capacity is a link of 100 in. radius and ofan length of 42 in. To insure central location of thework table while changing the radius for the various size links,pins mounted on both ends are temporarily inserted in hardenedsteel bushings in the cross slide. After the machine is started, the hand operated clutch con-. Link Grinding iVIacliine of Substantial Construction trolling the reciprocation of the saddle is engaged, and tlie mainsaddle is then lowered liy means of a hand wheel until the emerywheel is in the proper relative position to the face to be this operation the main saddle feed is made inoperativethrough a latch lever holding the feed operating clutch neutral. When the small diameter narrow face wheels are used, thereciprocation clutch and the neutral feed latch are disengaged andthe constant feed to the main saddle is operative. Motion forthis feed is taken from a cone on the main driving shaft andthrough a double train of bevel gears to give reverse length of feed is controlled by trips which are so arrangedthat the direction of movement of the saddle is automatically re-versed. To avoid undue dwell at the end of the stroke a springroller latch is employed. After locating the grinding wheels the trips on the cross slide are adjusted fo
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1913
