Columbia University - Columbian Yearbook (New York, NY)

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A D DRILL COMPA Y. X X ROCK DRILLS AND AIR-COMPRESSORS ON CHICAGO DRAINAGE CANAL: A A A 135 LITTLE GIANT DRILLS, ,gQQQ3g,QixL2jjeQf1Q3'ylf,fj1t,,IAIR-CoMPItEssoRs, ASFOY-1-OWS? AIR COMPRESSORS. DRILLS. RECORD OF DRILLING WITH THE Griffiths 8 McDermott, Section 1. One 16x24 Staight Line Compressor. C. C. Gilman CSL Co., Section 3. One 18x39 Meyer Valve Duplex Compressor. Mason, Hoge, King Sz Co.. Section 6, One zoxgo Corliss Engine Duplex Compressor. Gooch, Rinehart 81 Co, Section 7. One eoxgo Meyer Valve Duplex Compressor. E. D. Smith 81 Co., Section IO- Two I8X3O Meyer Valve Duplex Compressors. Locher, Harder 81 Williamsong Rosser, Hoge St Coleman, Section 11. One 1Sx3o Meyer Valve Duplex Complressor. Dandridge Sz angerg Woolfolk, Johnson it Comer, Section 13. One 18X3O Meyer Valve Duplex Compressor. Q16 C. C. Gilman 8: Co., Section 3. Exclusively. Mason, Hoge, King :Sz Co , Section 6. Exclusively. King K Mitchell, Section 6. Exclusively. Locher, Hanger 81 Mitchell, Section 7. Exclu- sively. Rosser, Hoge 8 Scruggs, Section 8. Exclusively. Mason 8: King, Section 8. Exclusively. NVinston 8: Co. Exclusively. E. D. Smith 8: Co., Section xo. Exclusively. Griffiths 8: McDermott, Section 1. More than half. McArthur Bros., Sections zand 4. More than half. Qualey Construction Co., Section 5. All but one. Gooch, Rinehart 8.1 Co.. Section 7. About oneehalf. Locher, Harder 81 Williamson, Section 11. About one-third. Dandridge 81 Hanger, Section 13. All but one. Woolfolk, Johnson 8: Comer, Section 13. About one-half. Smith Sz Eastman, Section 14. About one-fourth. LITTLE GIANT DRI LL. 1-2 hours ............................. hours ..... . . hours ..... .... hours ..... . .1, RAND DRILL CO., Ioo Broadway, New York City. 101 112 326 182 feet feet feet feet Stone and Websters Test of Imperial 3-Watt Incandescent Lamps S f vt'1i,'Q',f,'j,,,,,,,,,,, FOR COPIES ADDRESS THE MANUFACTURERS. Used by the West End Railway, Brooklyn Heights Railroad, and successful - in the International Competition at Hamilton, Canada. OVER BRYAN-MARSH CUMPANY- C VE.1iZ.f?..2t S'1' ,,,,,,,-,,,,,,,,,,,,,,ss, oFFIcE-13,6 LIBERTY STREET, NEVV YORK. vii

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