. The strength of materials; a text-book for engineers and architects. Fig. 181.—Cokers Combined Bending- and Torsion Machine. that no accurate fitting is required for the supporting casting c carrying the worm-wheel gear w has trunnionbearings h at right angles to and intersecting the axis of thespecimen. The bearings are fitted with friction rollers, andwhen the machine is used simply for torsion the worm-wheelis kept in a vertical position by an arm i keyed to the bearingH and locked in position by a thumb-screw. A weight Jattached by an arm to the second bearing balances the pivo
. The strength of materials; a text-book for engineers and architects. Fig. 181.—Cokers Combined Bending- and Torsion Machine. that no accurate fitting is required for the supporting casting c carrying the worm-wheel gear w has trunnionbearings h at right angles to and intersecting the axis of thespecimen. The bearings are fitted with friction rollers, andwhen the machine is used simply for torsion the worm-wheelis kept in a vertical position by an arm i keyed to the bearingH and locked in position by a thumb-screw. A weight Jattached by an arm to the second bearing balances the pivotedcasting in all positions. The weigh-levers are supported from a vertical standardK of the frame d by a wire l, terminating in a thin plate M 390 THE STRENGTH OF MATERIALS with a keyhole slot encircling the spindle N. Formerly aroller bearing was used for this spindle, but this is an un-necessary rejBnement, as the friction is extremely small andcan be easily taken into account. The casting supportedin this way has three levers, p, q, and r, the first two ofwhic
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorkdvannostran
