Cool Temperature Indicator images

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A few nice temperature indicator images I found:

Image from page 100 of “Railway and locomotive engineering : a practical journal of railway motive power and rolling stock” (1901)
temperature indicator
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Identifier: railwaylocomotiv16newy
Title: Railway and locomotive engineering : a practical journal of railway motive power and rolling stock
Year: 1901 (1900s)
Subjects: Railroads Locomotives
Publisher: New York : A. Sinclair Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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Text Appearing Before Image:
ons as one would take withgunpowder, as the two substances are byno means analogous. The same precau-tions that are usually taken with keroseneare generally sufficient, the only differencebetween the two substances being thatgasolene evaporates more rapidly at ordi-nary temperatures. No one would thinkof filling a burning lamp with kerosene,especially if the vapor were so volatileas to almost instantly reach the flame ofthe lamp and take fire. Again, if a ker-osene lamp takes fire one does not usuallyrun from it, but tries to throw it out Fcbnmi-y, lyoj. RAILWAY AND LOCOMOTIVE ENGINEERING 89 doors as quickly as possible. It shouldbe remembered thai, it a vessel contain-ing gasolene takes fire and there is anydanger of explosion, the explosion willoccur immediately following the ignition,and not later, and it is foolish to runaway. The proper thing to do is to makeevery effort to get the vessel out doors,and it should be carried by walking back-wards so that the flame will not burn the

Text Appearing After Image:
receives all the effects of any arcing thatthere may be and, since it is removable, iseasily replaced. The tanks are insulated from the cir-cuit, and, all the live metal parts being im-mersed in oil, there is no possibility of re-ceiving a shock from touching the breaker. The controlling and indicating devicesconsist of a controlling switch, an electro-mechanical tell-tale indicator and a lamp.These are suitably mounted at the oper-ating platform. The controlling switch has three posi-tions, namely, closed, off and open.It will remain of itself in the off or the operator. As, for instance, if the vesselis a pail that is being carried on a poker.In conclusion, it may be said that a littlehorse-sense in an emergency of this kinddoes a great deal more good than a wiiolelot of fuss. Electrically=Operated Oil Circuit-Break-er for Higli Tension Circuits.; The rapid increase during recent yearsin the size of central stations and the cur-rents and voltages handled therein hasbrought about a g

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