. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . the crank. In counter-balancing, the parts to beconsidered are the piston head, rod andnut; the cross-head, cross-head key, pinand nuts; one half of the total weight of themain rod; also the arm and link fastenedto cross-heads in the case of an outside Fig. 1 portionally less weight if at a greater dis-tance, will be the counter-balance calculating centrifugal and recipro-cating forces they are usually estimated ata speed in miles per hour equal to the di-ameter of the driving whe
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . the crank. In counter-balancing, the parts to beconsidered are the piston head, rod andnut; the cross-head, cross-head key, pinand nuts; one half of the total weight of themain rod; also the arm and link fastenedto cross-heads in the case of an outside Fig. 1 portionally less weight if at a greater dis-tance, will be the counter-balance calculating centrifugal and recipro-cating forces they are usually estimated ata speed in miles per hour equal to the di-ameter of the driving wheel in is generally referred to as diameterspeed. At this speed the reciprocatingparts, due to the laws of inertia, tend tocontinue their motion at the end of eachstroke with a force about equal to fortytimes their weight. The overbalance alsoexerts a centrifugal force equal to aboutforty times its weight, and is at a maxi-mum at the top and bottom position ofthe crank. This force is added to thestatic weight, in the lower position of theoverbalance and is opposed to this weight Fig. .3. j u 1! a /•^MJ a /^ OZ « / CO < / < Fig 2
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
