Measures for Progress: A History of the National Bureau of Standards

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THE RADIO PROXIMITY FUZE 395 and other raiders of the German Fleet had either been sunk or immobilized— but for air-to-air use against enemy bomber formations. Attack planes with these proximity fuze bombs were to climb above enemy air armadas and release their sticks over the formation. Work on the bomb fuze was well under way before it was realized that such targets had grown scarce, that the Allies, not the enemy, were now sending out bombers in flood formations. The requirement was changed to an air-to-ground bomb fuze, to effect airbursts over troops and other targets of opportunity. When this fuze later arrived overseas it was also fitted into fragmentation bombs. In napalm (gel gas) bombs, the fuze eliminated ground penetration, to which the standard napalm bomb was subject, doubling the area covered by the gel. In these various forms it was used with deadly effect by the 12th Air Force in Italy against both troops and materieL54 Since a bomb is not subject to setback at release, that is, the shock of acceleration upon which the arming of the rocket fuze depends, a different arming mechanism became necessary. The difference in fuze space in the bomb also required some physical redesign. The greatest concern in the bomb fuze, however, was with the dry battery used as a power source. As had been learned with the rocket fuze, it deteriorated rapidly in storage, lasting about a year ordinarily and not more than a month or 2 under tropical conditions. At the subzero temperatures encountered in high-altitude runs, the dry battery wouldn't work at all. Another means for powering the fuze had to be found.55 The solution was found by eliminating the batteries and using the arming system of the conventional bomb fuze. In that fuze a small wind- driven vane spinning as the bomb falls actuates the arming mechanism only after a certain number of turns of the vane. By attaching a miniature generator to the vane, sufficient electric power could be obtained for the proximity fuze. The generator assured almost indefinite storage life, per- formed well over extreme temperature ranges, and increased the safety factor since the fuze could in no way detonate the bomb unless the vane was running at high speed. The generator designed by Zenith Radio, measuring % by 2% inches and built to run at 50,000 r.p.m., went into mass production. With it went a rectifier assembly made by General Electric about half the size of a cigarette, to convert the alternating voltage of the generator to direct current for the fuze. Tests of the new bomb fuze began in May 1943, and by British tests further disclosed that air-burst chemical bombs filled with a persistent agent such as mustard gas contaminated seven times the area covered by a surface burst. Hin- man, pp. 33—34; Baxter, p. 241. Hinman, p. 18.
Five types of NBS radio proximity fazes mounted on the weapons for which they were designed. Mr. Harry Diamond, at left, holds the 81-mm mortar shell with the mortar fuze. Dr. Alexander Ellett, Chief of Division 4, NDRC, holds the mortar faze unmounted. Left to right on the table are a ring-type bomb fuze adapted for rockets, mounted here on a 5-inch high-velocity rocket; a later developed rocket fuze on the same rocket; a bar-type bomb fuze on a 260-pound fragmentation bomb; and a ringtype fuze on the 500-pound general purpose bomb.
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Rexmond C. Cochrane MP 275 UNITED S
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Grateful acknowledgment is made to
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IV FOREWORD There are many examples
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VI PREFACE Vannevar Bush, architect
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VIII AUTHOR'S INTRODUCTION so many
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CONTENTS Page FOREWORD 'U PREFACE v
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CONTENTS XIII Chapter II. FOUNDING
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CONTENTS XV Chapter III. ELECTRICIT
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CONTENTS XVII Chapter IV. THE WAR Y
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CONTENTS Chapter V. THE TIDE OF COM
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CONTENTS XXI Chapter VII. WORLD WAR
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XXIV CONTENTS THE CRUCIAL DECADE—
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MAIN STREET, 1900 AT THE TURN OF TH
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MAIN STREET, 1900 The marvel of the
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MAIN STREET, 1900 5 prosperous more
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MAIN STREET, 1900 Equally amazing w
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THE SHAPE OF THINGS TO COME 9 Among
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THE SHAPE OF THINGS TO COME 11 make
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THE SHAPE OF THINGS TO COME 13 stit
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THE SHAPE OF THINGS TO COME 15 comm
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GOVERNMENT, SCIENCE, AND THE GENERA
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GOVERNMENT, SCIENCE, AND THE GENERA
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LOOKING BACK 21 was maintained only
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LOOKING BACK 23 general public. Ada
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LOOKING BACK 25 many more as he cou
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LOOKING BACK 27 barometric pressure
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LOOKING BACK 29 Prototypes of the w
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LOOKING BACK 31 Without the force o
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LAISSEZ-FAIRE STANDARDS 33 necessar
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LAISSEZ-FAIRE STANDARDS 35 the Stat
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LAISSEZ-FAIRE STANDARDS 37 Some of
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A NATiONAL NEED . . . A NATIONAL HU
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A NATiONAL NEED . . . A NATIONAL HU
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A NATIONAL NEED .. . A NATIONAL HUM
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A NATIONAL NEED . . . A NATIONAL HU
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A NATIONAL NEED . . . A NATIONAL HU
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SAMUEL WESLEY STRATTON FOUNDING THE
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SAMUEL WESLEY STRATTON 51 fessor of
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SAMUEL WESLEY STRATTON ing Professo
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SAMUEL WESLEY STRATTON 55 For over
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Dr. Frank A. Wolff, Jr., who was ab
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SAMUEL WESLEY STRATTON 59 TIlE EVEN
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SAMUEL WESLEY STRATTON appeared as
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EDWARD B. ROSA 63 Dr. Edward B. Ros
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EDWARD B. ROSA 65 Free exercise of
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EDWARD B. ROSA 67 Dr. Charles W. Wa
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THE NEW BUREAU LABORATORIES 69 exer
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THE NEW BUREAU LABORATORIES 71 Chas
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ACQUIRING NATIONAL STANDARDS 73 mad
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ACQUIRING NATIONAL STANDARDS Divisi
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ACQUIRING NATIONAL STANDARDS 77 ref
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ACQUIRING NATIONAL STANDARDS 79 in
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ACQUIRiNG NATIONAL STANDARDS The wo
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AN AUTUMN FIRE AND A CONSUMERS' CRU
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The Baltimore fire of 1904. The tur
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AN AUTUMN FIRE AND A CONSUMERS' CRU
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AN: AUTUMN FIRE AND CONSUMERS' CRUS
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THE BEGINNING OF GOVERNMENT TESTING
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THE BEGINNING OF 93 gates, poured c
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The Bureau about 1910, just prior t
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The 2,300,000-pound Emery testing m
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THE BEGiNNING OF GOVERNMENT TESTING
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THE BEGINNING OF GOVERNMENT TESTING
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STANDARDS FOR THE AGE OF ELECTRICIT
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STANDARDS FOR THE AGE OF ELECTRICiT
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STANDARDS FOR PUBLiC UTILITIES 111
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Laboratory setup for testing the ca
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STANDARDS FOR PUBLIC UTILITIES 115
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The first iVBS railway scale test c
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TESTING GOVERNMENT MATERIALS 125 Go
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TESTING GOVERNMENT MATERIALS 127 an
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TESTING GOVERNMENT MATERIALS 129 se
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TESTING GOVERNMENT MATERIALS 131 In
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STANDARDS FOR THE CONSUMER 133 in t
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136 ELECTRICITY, RAILROADS, AND RAD
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148 ELECTRICiTY, RAILROADS, AND RAD
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cJ1 OF COMME The proliferation of B
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152 ELECTRiCITY, RAILROADS, AND RAD
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154 ELECTRICITY, RAiLROADS, AND RAD
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160 THE WAR YEARS (1917-19) design.
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162 THE WAR YEARS (1917-19) and Gov
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164 Abate, the experimental roiling
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Mule teams leveling the ground for
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C' The Standard Store and gas stati
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170 THE WAR YEARS (1917-19) physici
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172 THE WAR YEARS (1917-19) it was
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174 THE WAR YEARS (1917-19) where t
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176 THE WAR YEARS (1917-19) industr
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178 THE WAR YEARS (1917-19) cut fro
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180 THE WAR YEARS (1917-19) flew at
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182 THE WAR YEARS (1917-19) Except
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184 THE WAR YEARS (1917-19) But so
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186 THE WAR YEARS (1917-19) make it
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OPTICAL GLASS AND OPTICAL INSTRUMEN
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NEW THINGS IN RADIO COMMUNICATION 1
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194 THE WAR YEARS (1917-19) read,"
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196 THE WAR YEARS (1917-19) up clea
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198 THE WAR YEARS (1917-19) The use
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200 THE WAR YEARS (1917-19) program
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202 THE WAR YEARS (1917-19) investi
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204 THE WAR YEARS (1917-19) certain
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206 THE WAR YEARS (1917-19) large-s
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208 THE WAR YEARS (1917-19) some ye
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210 . THE WAR YEARS (1917-19) estab
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212 THE WAR YEARS (1917-19) trade f
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214 THE WAR YEARS (1917-19) As appr
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216 THE WAR YEARS (1917-19) necessa
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218 THE WAR YEARS (1917-19) tripled
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The Physikalisch-Technische Reichsa
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222 THE TIDE OF COMMERCE AND INDUST
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232 THE TIDE OF COMMERCE AND iNDUST
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238 Unlike Stratton, Dr. George K.
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The Visiting Committee of the Secre
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GEORGE KIMBALL BURGESS 245 and ofte
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GEORGE KIMBALL BURGESS 247 Bureau n
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BUiLDING AND HOUSING 249 Although i
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BUILDING AND HOUSING 251 The spring
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THE CRUSADE FOR STANDARDIZATION 253
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THE CRUSADE FOR STANDARDIZATiON 255
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RESEARCH FOR INDUSTRY 263 RESEARCH
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RESEARCH FOR INDUSTRY 265 appliance
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RESEARCH FOR INDUSTRY 267 molasses
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RESEARCH FOR INDUSTRY quest of the
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278 Freighted with apparatus design
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AUTOMOBILES AND AIRCRAFT 285 Testin
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POLICING THE ETHER 287 circuit crys
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POLICING THE ETHER 289 died in comm
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POLICING THE ETHER 291 If simple re
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POLICING THE ETHER 293 Bureau turne
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POLICING THE ETHER 295 a special hi
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POLICING THE ETHER 297 and radiotel
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THE BUREAU IN THE PUBLIC VIEW THE T
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THE BUREAU IN THE PUBLIC VIEW 301 t
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THE BUREAU IN THE PUBLIC VIEW 303 l
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THE BUREAU IN THE PUBLiC VIEW 305 e
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THE BUREAU IN THE PUBLIC VIEW 307 a
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LYMAN JAMES BRIGGS 309 the wake of
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LYMAN JAMES BRIGGS 311 The Bureau w
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LYMAN JAMES BRIGGS 313 Receiving th
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Dr. Hugh L. Dryden made some of thi
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LYMAN JAMES BRJGGS 317 active inter
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LYMAN JAMES BRJGGS 319 new administ
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TOWARD A REDEFINiTION OF BUREAU FUN
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TOWARD A REDEFINITION OF BUREAU FUN
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TOWARD A REDEFINiTION OF BUREAU FUN
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SOME FUNDAMENTAL WORK ON STANDARDS
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342 THE TIME OF THE GREAT DEPRESSIO
Page 369 and 370: 344 THE TIME OF THE GREAT DEPRESSIO
Page 373 and 374: 348 THE TiME OF THE GREAT DEPRESSIO
Page 391 and 392: 366 WORLD WAR II RESEARCH (1941-45)
Page 395 and 396: 370 WORLD WAR I! RESEARCH (1941-45)
Page 401 and 402: • amounts 376 WORLD WAR II RESEAR
Page 412 and 413: THE BUREAU AND THE ATOMIC BOMB 387
Page 414 and 415: THE RADIO PROXIMiTY FUZE 389 ness o
Page 416 and 417: THE RADIO PROXIMITY FUZE 391 A vari
Page 418 and 419: THE RADIO PROXIMiTY FUZE 393 Actual
Page 422 and 423: THE RADIO PROXIMITY FUZE 397 Novemb
Page 424 and 425: A GUIDED MISSILE CALLED THE BAT 399
Page 426 and 427: A GUIDED MISSILE CALLED THE BAT 401
Page 428 and 429: RADIO AND RADIO-WEATHER PREDICTING
Page 430 and 431: RADIO AND RADIO-WEATHER PREDICTING
Page 432 and 433: RADIO AND RADIO-WEATHER PREDiCTING
Page 434 and 435: RADIO AND RADIO-WEATHER PREDICTiNG
Page 436 and 437: RESEARCH IN CRITICAL MATERIALS 411
Page 438 and 439: RESEARCH IN CRITICAL lilA TERIALS 4
Page 440 and 441: RESEARCH IN CRiTICAL MATERIALS 415
Page 444 and 445: RESEARCH ZN CRiTiCAL MATERIALS 419
Page 452 and 453: "THE PECULIAR PEACE" THE NEW WORLD
Page 454 and 455: THE PECULIAR PEACE cated the fissio
Page 456 and 457: THE PECULIAR PEACE Further augmenti
Page 458 and 459: THE PECULIAR PEACE 433 Dr. Briggs a
Page 460 and 461: EDWARD UHLER CONDON weapon and the
Page 462 and 463: EDWARD UHLER CONDON While at Prince
Page 465 and 466: 440 THE NEW WORLD OF SCIENCE (1946-
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446 THE NEW WORLD OF SCIENCE (1946-
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45O THE NEW' WORLD OF SCiENCE (1946
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'a 452 THE NEW WORLD OF SCIENCE (19
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458 THE NEW WORLD OF SCIENCE (1946
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One of the three giunt IVurtsburg a
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496 THE CRUCIAL DECADE—AN EN VOl
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498 THE CRUCIAL DECADE—AN ENVO! s
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500 THE CRUCiAL DECADE—AN EN VOl
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502 THE CRUCIAL DECI4DE—AN EN VOl
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C).' Gaithersburg, showing the high
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510 THE CRUCIAL DECADE—AN EN VU!
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C,' The Visiting Committee of Comme
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514 The Exchequer standard corn gal
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516 APPENDIX A Hassler, a man highl
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518 APPENDIX A When he made known h
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520 APPENDIX A Hassler sets up camp
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522 APPENDIX A A new employment cam
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524 APPENDIX A thizing with a chara
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526 APPENDIX A possessed the scient
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528 APPENDIX B As the more practica
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530 APPENDIX B republican regime, a
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APPENDiX B him by Tralles. Thus fro
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APPENDIX B 535 By the 1930's metric
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APPENDIX C BASIC LEGISLATION Relati
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APPENDIX C For construction and ver
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APPENDIX C Eighth. The unit of indu
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APPENDIX C 543 Act of 4 March 1909
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APPENDIX C 545 Provided, That the m
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APPENDIX C Economy Act of 30 June 1
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APPENDIX C 549 For the establishmen
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APPENDIX C 551 (f) Invention and de
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554 APPENDIX C Act of 20 June 1956,
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558 APPENDIX E Term GANO DUNN Presi
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NBS SPECIAL APPROPRIATIONS, 1910-19
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1500 APPENDIX I PUBLICATIONS BY THE
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568 APPENDIX I Reorganization of NB
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APPENDIX J DIVISION. AND SECTION CH
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CHIEFS OF THE SCIENTIFIC AND TECHNI
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DIRECTOR CHIEFS OF THE SCIENTIFIC A
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WARTIME PROJECTS OF THE SCIENTIFIC
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APPENDIX 1 Radio Communications Sec
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APPENDIX J WEIGHTS AND MEASURES Fis
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APPENDIX J Airplane Power Plant—C
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APPENDIX J I 585 Electrochemistry E
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APPENDIX J Aviation Instruments—C
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APPENDIX / 589 Steel, Concrete, Cem
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DIRECTOR CHIEFS OF THE SCIENTIFIC A
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APPENDIX 1 VI. ENGINEERING PHYSICS
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APPENDIX J III. HEAT AND POWER—Co
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DIRECTOR Assistant Director for Res
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APPENDIX 1 IX. CLAY AND SILICATE PR
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APPENDIX 1 III. HEAT AND POWER—Co
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DIRECFOR Assistant to the Director
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APPENDIX J VII. ORGANIC AND FIBROUS
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DIRECTOR ASSISTANT DIRECTOR L ELECT
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APPENDIX / 609 VI. MECHANICS AND SO
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APPENDIX 1 611 ORDNANCE DEVELOPMENT
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APPENDIX J 613 II. METROLOGY—Cont
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APPENDIX / 615 VIII. METALLURGY—C
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APPENDIX 1 617 FIELD STATIONS Brook
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APPENDIX J I. ELECTRICITY AND ELECT
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APPENDIX 1 621 VII. ORGANIC AND FIB
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APPENDIX J 623 84. Radio Standards
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APPENDIX 1 H. METROLOGY—Continued
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APPENDIX J X. BUILDING RESEARCH—C
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APPENDIX 1 83. Radio Propagation En
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NBS PUBLICATIONS S T RP C H M BMS L
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APPENDIX K 4. OPTICS 5. CHEMISTRY 6
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APPENDIX K 635 Lowell & Willoughby,
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APPENDIX K 637 5. CHEMISTRY Judd, C
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APPENDIX K 639 9. CERAMICS French &
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APPENDIX K 641 Gardner, Design and
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APPENDIX K 643 Kline & Malmberg, Su
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APPENDIX K 645 McPherson, Adaptor f
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APPENDIX K Thomas, Driscoll & Hippl
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I.- C,) z IC, a -J LAND PURCHASES
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652 APPENDIX M Samuel W. Stratton a
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654 APPENDIX M Sometime after settl
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Scenes at the summer picnics that D
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a' The Bureau of Standards Orchestr
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660 APPENDIX M the American consul
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Alt, Franz L., Electronic digital c
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APPENDIX N 665 Harriman, Norman Fol
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APPENDIX N 667 hydrocarbons and rel
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670 APPENDIX 0 Bldg. No. 33 34 35 3
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672 APPENDIX 0 Estimated Estimated
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674 PUBLISHED SOURCES on World War
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676 PUBLISHED SOURCES Marshall, Log
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678 PUBLISHED SOURCES Biographies,
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680 UNPUBLISHED SOURCES Seventeen o
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INDEX Note: Only those members of t
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INDEX BELL, Alexander Graham, 210 B
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iNDEX Colorimetry section, NBS, 170
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690 iNDEX GARDNER, Washington (Cong
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692 inventions at NBS (see NBS staf
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694 metric legislation, 209, 210—
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696 INDEX National Bureau of Standa
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698 PRIEST, Irwin C., 99n, 186, 196
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700 screw thread standardization, 3
Page 717 and 718:
702 INDEX testing machines, 96 text
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INDEX WALKER, Percy H., 155 WALLACE
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Measures for Progress: A History of the National Bureau of Standards

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