. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ual ex-pansion. A noticeable feature is themeans for unscrewing and removingfrom the cylinder the cap with parts at-tached. The cap has a milled edge madeof hard rubber which is a non-conductorof heat, and this allows the operator to mechanism from the cylinder. A newform of detent is also used. This is inthe form of a friction clutch. It con-sists simply of a ball which is throwninto hard contact with a groove of un-equal radius, cut in the base of the operating mechanism can b
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ual ex-pansion. A noticeable feature is themeans for unscrewing and removingfrom the cylinder the cap with parts at-tached. The cap has a milled edge madeof hard rubber which is a non-conductorof heat, and this allows the operator to mechanism from the cylinder. A newform of detent is also used. This is inthe form of a friction clutch. It con-sists simply of a ball which is throwninto hard contact with a groove of un-equal radius, cut in the base of the operating mechanism can beused if desired. The indicator is a goodspecimen of accurate workmanship, thethickness of the arm has been increased,to reduce vibration, and the instrumentis at once strong and as light as it canbe made. Improvements of the kind outlinedabove help to increase the use of indi-cators by removing some of the trou-bles and discomforts incident to workwith the high pressures of to-day. Thebest and most convenient indicator isnone too good for the difficult and ex-acting task of taking locomotive dia-. STAR IMPROVED INDICATOR. handle it with comfort, .other ar-rangement for comfort which will beappreciated is that the indicator is vent-ed on the side less likely to be encoun-tered by the hand of the user when turn-ing on the indicator cock. A suitableattachment with hose can be clamped tothe barrel, and this arrangement willeffectually carry the scalding drops asufficient distance below the body of theinstrument. Once burned, twice shy,seems to have been the motto of thedesigner of the improvements to lessenthe danger from heated cap or hot waterand steam, and never had motto betterapplication. The piston rod of the Star ImprovedIndicator is provided with an adjustableswivel nut, so planned that the atmos-pheric line can be drawn at any desireddistance from the bottom of the card,without removing the piston and its grams. A scientific instrument of pre-cision which entails burned f
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
