Transaktionen . gt; 10 * 50 f> ) >> 11-00 5J > >" 11-10 >> J 5> 11-20 >> ) Lbs. Pro sq. 0354 GAS IX TIIE-STEINKOHLE.-BOLDOX, XOS. 1, 2. 199. Mai 29, um 220 UHR, der Druck war ... Lbs. Pro "> >? ... ... Juni um 8 * 10 > 5> >>> ... ... 381 " 2., bei 8-10 " >> " ... ... 38G Zum Abschluss wurde am 3. Juni die Gasmenge gemessen, die aus dem Loch austäubt, und zwar am Prüfgerät der South Shields Gas Company, mit den folgenden Ergebnissen:- 3. Juni, um 8 x 40 Uhr, stand das Messgerät bei... 0271 * 00" 4., um 7-40 " " ... 0291 * 00 = 20 Kubikzentimeter

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Transactions . gt; 10*50 f> ) >> 11-00 5J > >» 11-10 >> J 5> 11-20 >> ) Lbs. per sq. iuch. 0354 GAS IX TIIE SOLID COAL.—BOLDOX, XOS. 1, 2. 199 May 29th, at 220 A.M., the pressure was ... Lbs. per «> >? ... ... 372 June 1st, at 8*10 > 5> >> ... ... 381 „ 2nd, at 8-10 » >> » ... ... 38G In conclusion, on June 3rd, the amount of gas exuding from thehole was measured by the testing meter of the South Shields Gas Company, with the following results :— June 3rd, at 8*40 a.m., the meter stood at... 0271*00„ 4th, at 7-40 „ „ ... 0291*00 = 20 cubic feet. Which would give 87 feet per hour. The other gauges during this experiment were standing at— No. 2No. 3No. 4 Lbs. per sq. inch. 248 402 280 Pressureof Gas. Quantityof Gas. EXPERIMENT II. On May 11th, 1880, a second hole was bored in the same board.See Elevation No. 1, page 197, and Section 8. Section No. 8.. CONDITIONS The length of the borehole was ... The diameter of , , The diameter of pipe fixed in the hole Gas space ... Hole at right angles to the cleat. Cover—depth of hole from surface Distance of hole from shaft Description of gauge used The gas space contained 107*99 cubic inches. Ft. 7 In. 8* 91 1 10 1, 268 feet. 2, 200 yards. Schaeffer and Budenberes. 200 EXPERIMENTS SHOWING THE PRESSURE OF The position of No. 2 Hole, with regard to the holes Nos. 1 and 3, isshown in Elevation No. 1, page 197, and generally, with regard to theworkings, in Plans Nos. 3 and 4, pages 195, 196. The total length of stemming was 5 feet 10^ inches, and the mode ofperforming the operation exactly the same as in No. 1 Hole. Thishole, however, was much shorter, being only 7 feet 8^ inches. It was alsoput in a little higher up in the seam, as shown in the Elevation. On May 14th, a 300 lbs. gauge was attached to the hole. Pressureof Gas. RESULTS.—See Table, Page 246. May 14th.—At T40 p.m., the gauge was

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• bookcentury1800
• booksubjectmechan
• bücherunterlagemineralindustrien