. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. 1 ^-1 E ^ 1 1 ^ jE 1 ^. front view and section of a portion of the cylinder face showing the position of the ports, tlie centralports being the exhaust. This valve slides in a corresponding V face in tlie cylinder, and in a Vjacket, by which the back part of the valve is enclosed; thus the only parts which are exposed tothe pressure of the steam in the steam chest are the two ends; and as the areas of these areequal, the friction is reduced to a minimum. This form of valve admits of any wear, being easilya
. Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval. 1 ^-1 E ^ 1 1 ^ jE 1 ^. front view and section of a portion of the cylinder face showing the position of the ports, tlie centralports being the exhaust. This valve slides in a corresponding V face in tlie cylinder, and in a Vjacket, by which the back part of the valve is enclosed; thus the only parts which are exposed tothe pressure of the steam in the steam chest are the two ends; and as the areas of these areequal, the friction is reduced to a minimum. This form of valve admits of any wear, being easilyadjusted; as in order to follow this up it is only necessary to plane up the jacket faces at H. These hammers are made in various sizes, both as single and double standard hammers; and areeither double and single acting, with dead blow by hand lever; or single and double acting workedby hand. In the former the valve is made without lap; in the latter lap is added to get thesingle action, and the valve travels more to get the double action, or steam at the top of the sizes of the single standard ha
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectenginee, bookyear1879
