Knowledge (XXG)

Granville Bradshaw

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184: 206:. He also designed motorcycle engines where the cylinder barrels were oil cooled, and these were made under licence by J Walmsley & Co (Preston) Ltd. The flat-twin 500cc version of this engine was utilised from 1921 on the 257:
In 1911 he married Violet Elsie Partridge in Wolverhampton. Violet petitioned for divorce in 1926. Bradshaw married again in 1927 to Muriel Mathieson in Kensington, London. He died in 1969 at Hitchin in Hertfordshire.
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which had a single toroidal cylinder, containing four double-ended curved pistons. The pistons reciprocated in pairs, while the cylinder rotated around them, carrying around the spark plug and inlet/exhaust ports.
366: 451: 172:. A number of aircraft were designed to use the Dragonfly, but the engines were plagued by problems and failed to live up to the promises. The design was taken over by the 202:, with Granville Bradshaw of ABC Motors Ltd concentrating on design. This allowed him to sell his designs to other companies. He designed a number of engines for 456: 225:
His biggest seller was selling patents for gambling machines, although he lost all the money he made in further business deals. He later concentrated on
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The ABC radial aero-engines designed and built during the First World War were extremely advanced and the government placed large orders for the
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when he was 19, which he later flew. He then started to work on aero-engines and was the co-founder of the All-British Engine Company (later
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Bradshaw's early work was involved with the early pioneers of flight, which led him to become an expert on stressing. He designed the
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At the end of 1918 it was announced that ABC Motors Ltd had transferred its motor cycle manufacturing and selling rights to
173: 192: 131: 116: 135: 88: 446: 218:, Orbit, and Coventry-Mascot in 1922; and an 1100cc V-twin version of this oil-cooled engine was adopted for the 199: 229:. Bradshaw produced a long list of inventions and designs, although very few achieved commercial success. 391: 314: 436: 431: 177: 292: 245: 226: 158: 147: 138:(1887–1969) was an English engineer and inventor who designed motorcycle, auto, and aero-engines. 207: 203: 267: 150:
in 1887 as the son of William and Annie Bradshaw. His father was a jeweler and optician.
219: 154: 55: 425: 169: 183: 347:"Bradshaw Oil-Cooled Engines on the Market", The Motor Cycle, 10 November 1921 272: 211: 162: 98: 180:
to try to resolve the issues, but with the end of the war, it was abandoned.
356:"Olympia - A Review of 1923 models", The Motor Cycle, 30 November 1922 182: 210:
motorcycle. A single cylinder 348cc version was optional for
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ABC Motors Full Page Advert, Motor Cycle, 26 December 1918
315:"Flight 13 June 1918 Birthday Honours for War Workers" 295:. Wolverhampton History and Heritage. 14 February 1921 112: 104: 94: 84: 69: 61: 51: 39: 27: 20: 8: 452:Officers of the Order of the British Empire 343: 341: 193:Officer of the Order of the British Empire 117:Officer of the Order of the British Empire 17: 367:"National Archives Petition for Divorce" 284: 236:by Barry Jones was published in 2008. 7: 234:Granville Bradshaw: a flawed genius? 227:toroidal internal-combustion engines 457:Engineers from Preston, Lancashire 244:The Bradshaw engine was a type of 14: 103: 46:Hitchin, Hertfordshire, England 467:20th-century British engineers 462:20th-century British inventors 1: 174:Royal Aircraft Establishment 73:William & Annie Bradshaw 34:Preston, Lancashire, England 442:English aerospace engineers 394:. Flight Global. 8 May 1969 129:Granville Eastwood Bradshaw 108:Motorcycle and Aero-engines 22:Granville Eastwood Bradshaw 483: 195:for his war work in 1918. 89:Royal Aeronautical Society 240:The Omega toroidal engine 157:including the engine for 122: 77: 214:, Sheffield-Henderson, 200:Sopwith Aviation Co Ltd 392:"Flight International" 188: 371:The National Archives 186: 165:then Walton Motors). 146:Bradshaw was born in 191:He was appointed an 246:swing-piston engine 204:Panther motorcycles 148:Preston, Lancashire 417:Granville Bradshaw 189: 79:Engineering career 126: 125: 474: 447:English aviators 404: 403: 401: 399: 388: 382: 381: 379: 377: 363: 357: 354: 348: 345: 336: 333: 327: 326: 324: 322: 311: 305: 304: 302: 300: 289: 18: 482: 481: 477: 476: 475: 473: 472: 471: 422: 421: 413: 408: 407: 397: 395: 390: 389: 385: 375: 373: 365: 364: 360: 355: 351: 346: 339: 334: 330: 320: 318: 317:. Flight Global 313: 312: 308: 298: 296: 293:"Star Aircraft" 291: 290: 286: 281: 268:ABC motorcycles 264: 255: 242: 208:Zenith-Bradshaw 144: 47: 44: 35: 32: 23: 12: 11: 5: 480: 478: 470: 469: 464: 459: 454: 449: 444: 439: 434: 424: 423: 420: 419: 412: 411:External links 409: 406: 405: 383: 358: 349: 337: 328: 306: 283: 282: 280: 277: 276: 275: 270: 263: 260: 254: 251: 241: 238: 155:Star Monoplane 143: 140: 124: 123: 120: 119: 114: 110: 109: 106: 102: 101: 96: 92: 91: 86: 82: 81: 75: 74: 71: 67: 66: 63: 59: 58: 53: 49: 48: 45: 41: 37: 36: 33: 29: 25: 24: 21: 13: 10: 9: 6: 4: 3: 2: 479: 468: 465: 463: 460: 458: 455: 453: 450: 448: 445: 443: 440: 438: 435: 433: 430: 429: 427: 418: 415: 414: 410: 393: 387: 384: 372: 368: 362: 359: 353: 350: 344: 342: 338: 332: 329: 316: 310: 307: 294: 288: 285: 278: 274: 271: 269: 266: 265: 261: 259: 252: 250: 247: 239: 237: 235: 230: 228: 223: 221: 217: 213: 209: 205: 201: 196: 194: 187:A Wasp engine 185: 181: 179: 175: 171: 166: 164: 160: 159:Star Aircraft 156: 151: 149: 141: 139: 137: 133: 130: 121: 118: 115: 111: 107: 100: 97: 95:Practice name 93: 90: 87: 83: 80: 76: 72: 68: 64: 60: 57: 54: 50: 42: 38: 30: 26: 19: 16: 396:. Retrieved 386: 374:. Retrieved 361: 352: 331: 319:. Retrieved 309: 297:. Retrieved 287: 256: 243: 233: 232:A biography 231: 224: 197: 190: 167: 152: 145: 128: 127: 85:Institutions 78: 15: 437:1969 deaths 432:1887 births 222:light car. 178:Farnborough 52:Nationality 426:Categories 273:ABC Motors 212:OK-Supreme 163:ABC Motors 99:ABC Motors 62:Occupation 170:Dragonfly 398:28 March 376:28 March 321:28 March 262:See also 105:Projects 65:Engineer 299:19 July 220:Belsize 142:History 56:British 253:Family 136:AFRAeS 113:Awards 70:Parent 279:Notes 400:2009 378:2009 323:2009 301:2013 43:1969 40:Died 31:1887 28:Born 216:Dot 176:at 132:OBE 428:: 369:. 340:^ 134:, 402:. 380:. 325:. 303:.

Index

British
Royal Aeronautical Society
ABC Motors
Officer of the Order of the British Empire
OBE
AFRAeS
Preston, Lancashire
Star Monoplane
Star Aircraft
ABC Motors
Dragonfly
Royal Aircraft Establishment
Farnborough

Officer of the Order of the British Empire
Sopwith Aviation Co Ltd
Panther motorcycles
Zenith-Bradshaw
OK-Supreme
Dot
Belsize
toroidal internal-combustion engines
swing-piston engine
ABC motorcycles
ABC Motors
"Star Aircraft"
"Flight 13 June 1918 Birthday Honours for War Workers"


"National Archives Petition for Divorce"

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