The practical draughtsman's book of industrial design and machinist's and engineer's companion : forming a complete course of mechanical, engineering and architectural drawing . he pipe, h, into the eye of the runner, a,and thence proceeds to the grinding surface. The upper stone issupported by side brackets, these brackets being carried on thelower annular casing, l, bolted down to the floor. The bottomstone is sunk in a casing, m, recessed into the floor or platform,being steadied late-rally by an annularpiece of metal levelwith the floor, whilstit rests on adjustingbolts, n, spi
The practical draughtsman's book of industrial design and machinist's and engineer's companion : forming a complete course of mechanical, engineering and architectural drawing . he pipe, h, into the eye of the runner, a,and thence proceeds to the grinding surface. The upper stone issupported by side brackets, these brackets being carried on thelower annular casing, l, bolted down to the floor. The bottomstone is sunk in a casing, m, recessed into the floor or platform,being steadied late-rally by an annularpiece of metal levelwith the floor, whilstit rests on adjustingbolts, n, spindle, drivenby gearing from be-low, rests in an ad-justable balancedfootstep. It is fittedto the runner by aRijtie, made on the balance top of the spin-dle is sphericallyshaped, as at o, be-ing passed throughthe collar disc, p,and fitted into aspherical recess inthe under side of theRyne, Q, connectedto the stone, a. Inthis way, as the con-nection between thespindle and the stoneis entirely formed by this ball and socket, no derangement can arrs«from the spindle and runner getting out of truth. Fig. 10 is a vertical section of the balance Ryne, on a largei. 163 THE PRACTICAL DRAUGHTSMANS scale, a is the base plate, and b the lower running stone, drivenfrom above by the main spindle, i. winch passes down through thocentre of the adjustable tubes of the feed-hopper, and terminatesin a convex foot. This foot rests in a concavity in the top ofthe disc piece, d, which lias formed upon the centre of its lowersurface a spherical journal or step piece, resting in a brass carriedin the top of the adjustable block,-E. The bottom of the spindlehas a transverse piece, J, forged upon it, and arranged to gearinto slots in a projection standing up from the upper face of thedisc piece, d, so that the spindle cannot revolve without carryingthis disc with it. This disc is secured vertically to the upper discof the Ryne by bolts passed up from below, and it is adjustablelaterally b
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Keywords: ., bookcentury1800, booksubjectarchitecturaldrawing, booksubjectmec
