Lehigh Alumni Bulletin 1920-1921 (volume 8, no 9) . ODUCTS O. B. ACKERLY, 13 G. D. SEVAN Alumni Bulletin of Lehigh University DESIRABLE RESULTSWITH EXPLOSIVES are obtained when the proper explosiveis used in the right way. Because blasting requirements are so varied and because there are so manykinds and grades of explosives, it is difficult many times to determinewhich is the proper grade to use for a particular piece of work. As a means to obtain desirable results with a saving of blasting costs, theassistance of our Service Division is offered without charge to users ofAtlas Explosives
Lehigh Alumni Bulletin 1920-1921 (volume 8, no 9) . ODUCTS O. B. ACKERLY, 13 G. D. SEVAN Alumni Bulletin of Lehigh University DESIRABLE RESULTSWITH EXPLOSIVES are obtained when the proper explosiveis used in the right way. Because blasting requirements are so varied and because there are so manykinds and grades of explosives, it is difficult many times to determinewhich is the proper grade to use for a particular piece of work. As a means to obtain desirable results with a saving of blasting costs, theassistance of our Service Division is offered without charge to users ofAtlas Explosives. Atlas Products include: High Explosives 100 diflferent kinds for all purposesPermissible Explosives—Coalite Made in all grades Blasting Powder All Standard Granulations Blasting Supplies For Fuse and Electric Firing Chemicals Sulphuric Acid, Nitric Acid, Mixed Acids,Oleum, Electrolyte, etc. Lacquers For Wood and Metal Leather Cloth For Upholstery. /ITL/IS POWDER COMPANY GENERAL OFFICES Frank H. Qunsolus, 98 WJLMINQTON, DEL. Weston G. Prome, 10. A PRpi^ER EXFft^SlVE FOR EVERY BLASTFNI* REaUIREWENT Alumni Bulletin of Lehigh University *\i^5ja Products: CYCLOMETERS FOR BICYCLES AND MOTORCYCLES, TO RECORD DISTANCEtraveled; odometers for MOTOR TRUCKS AND HORSE-DRAWN VEHICLES, TOREGISTER mileage; COUNTERS FOR RECORDING THE PRODUCTION OF MACHINES; SPEED COUNTERS FORCOUNTING REVOLUTIONS (pER MINUTE) OF SHAFTS OR FLYWHEELS; TACHOMETERS FOR INDICATINGIN REVOLUTIONS-PER-MINUTE THE SPEED OF MOTORS, PRIME MOTORS, GENERATORS OR ANY REVOL-VING PART. The small Rotary Ratchet Counter shown at eft is amost adaptable counter for practical and experimentalw rk. It counts reciprocating m vements of the lever,as req lired in recording the output of stamping the lever is moved through an angle of 40 to 60degrees, the counter registers one. A complete revolu-tin of the lever registers ten This counter is applicableto of small machines, by adjusting the throw ofthe ,
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectlehighu, bookyear1921
