This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1884 edition. Excerpt: ... suspension is a correct one, and if the eccentric-rods are sufficiently long, our theory gives, even if the " missing quantity " is taken into account, no results which indicate the necessity of such an arrangement. If the valve is adjusted to equal lead for one grade, then it is equal on both sides ...
Read More
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1884 edition. Excerpt: ... suspension is a correct one, and if the eccentric-rods are sufficiently long, our theory gives, even if the " missing quantity " is taken into account, no results which indicate the necessity of such an arrangement. If the valve is adjusted to equal lead for one grade, then it is equal on both sides of the valve for all other grades, even when the eccentric-rods are short, as has been proved by theory and experiments. Of course it is another question, whether with short eccentric-rods the distribution of the steam will be an advantageous one for all grades of expansion; but this question is most decidedly to be answered in the negative. No possible alteration in the valve can in the least improve the distribution of the steam in such valve-gears. In the following pages we give the investigation of two linkmotions, whose parts are quite differently arranged from those already examined. CHAPTER IV. Heusinger Von Waldegg's Link-motion. Description of the Valve-gear. This valve-gear is represented in side elevation by Fig. 15, PI. III. 0 is the centre of the driving-axle, upon which is fixed the crank 0 R, and an eccentric E whose eccentricity O D forms a right angle with the centre line of the crank. The eccentric-rod D C gives to the link C C, which turns on the fixed pin J, an oscillating motion. The link has a curved slot in which the sliding-block K can be moved up and down by means of the lifting-link K H, so as to produce a variable expansion; the block is jointed to the radius rod P K. The radius-rod P K is connected at its end P with two levers M S, whose upper ends are jointed to the valve-spindle V V, while their lower ends turn in bearings S on the cross-head W. Each lever M S has thus a very peculiar motion given to...
Read Less
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
This is an ex-library book and may have the usual library/used-book markings inside. This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Octavo, bound in black cloth, gilt lettering on front cover. Backstrip reinforced with green cloth. Binding is rubbed and corners are bumped. Black end papers. Pages are age toned, text is clear. Please note the Image in this listing is a stock photo and may not match the covers of the actual item, 700grams, ISBN:
