lic can be so rapidly pressure of oil is turned that its exerted upon the curious sentence pistons of the will be received brake cylinder, at the sounder i i | | driving them to with aspeed that x ay the center of the would open the cylinder, as indi- eyes of a_ good cated by the ar- operator.… … the most perfect operator can never hope to attain. At controlled by the old hand-brake; and while this is tion of oil takes place as before. This brake, which first blush it might seem that the student simply learns fairly efficient, it has the drawback of being slow in was invented by J. H. Neal,…
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