author: harold putnam greenwald

Official Changes in the Active List of Permissible Explosives for September, 1928: 1928

Edmund Spriggs Leaver Ralph H. Espach Richard Duddleston Leitch William Hawes Coghill Arthur William Fahrenwald C. Travis Anderson Chase Elverton Sutton Clifford Cook Furnas Curt Nicolaus Schuette Daniel Harrington E.C. Lane Edward H. Denny Edwin Lee Rawlins Eugene Delos Gardner F. E. Cash G. B. Shea G. R. Hopkins G. St. J. Perrott George Edward McElroy George Samuel Rice H. M. Lawrence Harold P. Rue Harold Putnam Greenwald Henry Alfred Doerner J. D. Davis John Gross John Michael Devine John Roy Thoenen R. G. O'Meara Ronald Van Auken Mills Royd Ray Sayers Royden Edward Head Rudolph Richard Brandenthaler Scott Turner Thomas Leonard Joseph Thomas Varley William A. Sloan William Waugh Adams Jesse Arthur Woolf Clarence Watson Owings D. J. Parker F. D. De Vaney F. W. Lane J. J. Forbes K. L. Marshall O. W. Greeman S. R. Zimmerley T. W. Johnson Virgil Miller Arno Carl Fieldner F. Feehan

Air flow

... Tank - " 1. ⠀⠀ Tank - builder was standing on scaffold 6 or 7 feet from ground ; the scaffold was hanging from the top of a small tank being erected . One of the crew came from inside of the tank and dropped over the top onto the scaffold ...

Gold Mining and Milling in the United States and Canada: Current Practices and Costs

Charles Freeman Jackson Clifford Cook Furnas Eugene Delos Gardner Harold Putnam Greenwald L. C. Ilsley Percy Nicholls Simon Harry Ash William Waugh Adams Alva Britt Hooker Charles Warren Staples John Ballantine Knaebel John Frederick Johnson Joseph Holbrook Rankin Earl Jeffries Coggeshall

Cables

... Dodge Corporation . See Ari- Pilares mine . See Mexico , Mocte- zuma Copper Co. Piling methods , discussion . 54 Shape , shaft , determination_ Pilot raise , diagram ... wiring . Round shafts , in water measures --- diagram --- Saginaw shaft ...

Methods of Sampling and Analyzing Coal-mine Dusts for Incombustable Content

Clarence Watson Owings Walter Alfred Selvig Harold Putnam Greenwald

Coal mines and mining

... - spout gate 7 ball and socket bearing Overflow spout Overflow - spout adjustable gate Overflow - spout adjustable gate guide Overflow - spout adjustable gate handwheel Overflow - spout adjustable gate bracket Overflow - spout adjustable ...

Laboratory Studies of the Inflammability of Coal Dusts: Effects of Fineness of Coal and Inert Dusts on the Inflammability of Coal Dusts

Albert Lawrence Godbert Charles Freeman Jackson Kenneth Keith Kelley Ralph Homeward Espach Strathmore Ridley Barnott Cooke Thomas Garfield Chapman William Waugh Adams Eugene Delos Gardner Harold Putnam Greenwald L. E. Geyer V. E. Erwin

Chemistry Inorganic

... melting points usually are referred to as match waxes , and for about every 2 ° of melting - point range up to 134 ° F. another grade of wax ... waxes usually will show from zero 98 MANUFACTURE OF PARAFFIN WAX FROM PETROLEUM.

Mining Petroleum by Underground Methods: A Study of Methods Used in France and Germany and Possible Application to Depleted Oil Fields Under American Conditions

Carl Ernest Reistle Charles Freeman Jackson George Samuel Rice George St. John Perrott Kenneth Keith Kelley Simon Harry Ash Wilfred Charles Furness Shepherd William Waugh Adams Harold Putnam Greenwald John Ballantine Knaebel L. E. Geyer Noah Arthur Tolch Henry C. Howarth L. Chenoweth

Alkanes

... dust extinguishes flame by absorbing heat from it ; also , the sudden launching of a large quantity of barrier dust ... other dust would be carried down with it ; hence , one may assume that the dust in the air is a mixture of the ...