On defects in the apparatus generally used for the determination of bisulphide of carbon in coal gas : and description of a new apparatus for its estimation / by Alfred G. Anderson.

  • Anderson, Alfred G.
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: On defects in the apparatus generally used for the determination of bisulphide of carbon in coal gas : and description of a new apparatus for its estimation / by Alfred G. Anderson. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    by many who may follow me in these in- vestigations, I will describe it. The Bunsen burner in its simplest form consists of a small tube, having an orifice a for the emission of the required stream of gas screwed into a foot B; c d is a metal tube, fitting a long screw- thread round about a—as usually made, of from a quarter of an inch to half an inch in- ternal diameter—into which the gas flows from the orifice a, when, by turning on the supply-tap, the gas is delivered to it through the inlet e. The metal tube c cl, also round about a, is perforated with several holes, so that as the gas emerges from a, and is set on fire on the surface of the tube at / f atmo- spheric air rushes in through these, inter- mingles with the gas passing out at a, and then causes the produc- tion of a blue smokeless flame as the gas and portions of atmo- spheric air burn together at the top of the tube at// h. The upper part of the foot support k <j g is generally made with a sorew- thread, so deep as to permit of the tube c cl being raised higher or lower as may be desired; at the same time allowing a more or less current of atmospheric air, by the consequent enlarge- ment or contraction of the openings around its lower part, to flow in to suit the convenience of the operator. In this way a well- constructed burner of this kind will afford a jet of gas varying from a steady blue smokeless flame to one of blow-pipe intensity. From a mere physical examination of the kind of flame obtained by a careful adjustment of the supply of gas and the accompanying influx of air to consume it, one would be fully inclined to believe that the combustion of the gas could not be made by any con- trivance of the kind more perfect. We shall see, however, as the next table proves, that this is by no means uniformly the fact, curious as such a result may appear. Table of Comparison of Results obtained by testing the “ Bunsen ” Burner with the “ Leslie ” Burner and the “ Single ” Jet. 3 o 1 03 ■3 | £* . U P rO ft it S a **-> O' d o 0 cn 0 & o ^ «. -s - p c 0 U) . u- oi <D O P, M •2. 0 aS 0 o N § •rt u 0,1 'y C o 7 g« rhether phurize used or mount o obtaine ■S 5 ® w a Q < a First volume of gas, f R 2£c .ft. , ,. Bunsen .. Yes . . -437 .. 17-48 gr. equally divided • • • • is 2J o .ft. . ,. Leslie ..No . . -265 .. 10-60 gr. Second volume of gas,, f T 2£ c. , ft. . . Bunsen .. Yes ., . -301 .. 12'05 gr. equally divided (v 2J c. . ft. . . Fishtail .. Yes . -287 .. 11-48 gr. Third volume of gas, i ru 2£ c. .ft. . . Fishtail .. Yes .. , -309 .. 12-36 gr. equally divided l w 2£ c. , ft. . . Bunsen .. Yes .. . -364 .. 14-56 gr. Fourth volume of gas, l fX 2* C. ft. . . Leslie .. Yes .. •431 .. 17-24 gr. equally divided .... 1 l Y 2* c. ft. . . Bunsen .. Yes .. , -472 .. 18-18 gr. Fifth volume of gas, 1 (Z 2J c. , ft. . . Bunsen .. Yes ., . -369 .. 14-76 gr. equally divided ....1 11 24 c. ft. . . Single .. Yes .. •280 .. 11-20 gr.