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Crown glass (window)

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27: 84:. They are only 110–115 millimetres (4.3–4.5 in) in diameter and were probably used to provide light in storerooms. The process of making crown glass window panes was perfected by French glassmakers in the 1320s, notably around 64:
was used for less expensive windows. To fill large window spaces with the best glass, many small diamond shapes were cut from the edge of the disk, and then some might be halved into triangles. These were mounted in a
120: 107:. These methods of manufacture lasted at least until the end of the 19th century. The early 20th century marks the move away from hand-blown to machine-manufactured glass such as 241: 116: 56:
The thinnest glass was in a band at the edge of the disk, with the glass becoming thicker and more opaque toward the center. Known as a
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Crown glass was one of the two most common processes for making window glass until the 19th century. The other was
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and then flattened by reheating and spinning out the bowl-shaped piece of glass (bullion) into a flat disk by
112: 573: 405: 322: 609: 599: 520: 490: 302: 297: 277: 53:, up to 5 or 6 feet (1.5 to 1.8 metres) in diameter. The glass was then cut to the size required. 282: 604: 475: 292: 104: 20: 8: 543: 332: 450: 435: 380: 375: 50: 365: 250: 177: 578: 420: 327: 317: 193: 42: 557: 552: 510: 410: 350: 144: 100: 88:, and was a trade secret. Hence crown glass was not made in London until 1678. 219: 181: 593: 500: 485: 425: 415: 312: 307: 272: 91:
Crown glass is one of many types of hand-blown glass. Other methods include:
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D. Welsby (1992), "Windows in Medieval Nubia: The Evidence from Soba East",
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into a "crown" or hollow globe. This was then transferred from the
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This article is about the window glass. For the optical glass, see
76:. Crown glass window panes with ceramic frames have been found at 470: 81: 37:
was an early type of window glass. In this process, glass was
85: 46: 26: 533: 591: 249: 235: 242: 228: 194:"Hand-blown glass: manufacturing process" 25: 592: 223: 121:single and twin ground polished plate 60:, the thicker center area around the 69:and fitted into the window frame. 13: 283:Extrusion / Drawing (glass fibers) 14: 621: 278:Blowing and pressing (containers) 215: 186: 162: 137: 1: 130: 461:Machine drawn cylinder sheet 113:machine drawn cylinder sheet 7: 574:Glossary of glass art terms 10: 626: 198:London Crown Glass Company 145:"The Glassblowing Process" 80:, the medieval capital of 18: 16:Early type of window glass 566: 519: 341: 258: 182:10.1017/s0003581500071250 491:Satsuma Kiriko cut glass 303:Overflow downdraw method 298:Precision glass moulding 293:Drawing (optical fibers) 544:Shock metamorphic glass 170:The Antiquaries Journal 31: 29: 406:Cylinder blown sheet 105:cylinder blown sheet 21:Crown glass (optics) 529:Radiative processes 344:historic techniques 268:Float glass process 323:Chemical polishing 149:Sugar Hollow Glass 32: 587: 586: 521:Natural processes 436:Fourcault process 67:lead lattice work 51:centrifugal force 617: 610:History of glass 600:Glass production 251:Glass production 244: 237: 230: 221: 220: 209: 208: 206: 204: 190: 184: 166: 160: 159: 157: 155: 141: 117:flat drawn sheet 625: 624: 620: 619: 618: 616: 615: 614: 590: 589: 588: 583: 579:Glass recycling 562: 515: 421:Enamelled glass 343: 337: 328:Diamond turning 318:Flame polishing 260: 254: 248: 218: 213: 212: 202: 200: 192: 191: 187: 167: 163: 153: 151: 143: 142: 138: 133: 24: 17: 12: 11: 5: 623: 613: 612: 607: 602: 585: 584: 582: 581: 576: 570: 568: 564: 563: 561: 560: 558:Volcanic glass 555: 553:Vitrified sand 550: 541: 536: 534:Opal formation 531: 525: 523: 517: 516: 514: 513: 511:Tempered glass 508: 503: 498: 493: 488: 483: 478: 476:Polished plate 473: 468: 463: 458: 453: 448: 443: 438: 433: 428: 423: 418: 413: 408: 403: 398: 393: 388: 383: 378: 373: 368: 363: 358: 353: 347: 345: 339: 338: 336: 335: 330: 325: 320: 315: 310: 305: 300: 295: 290: 285: 280: 275: 270: 264: 262: 256: 255: 247: 246: 239: 232: 224: 217: 216:External links 214: 211: 210: 185: 161: 135: 134: 132: 129: 101:polished plate 15: 9: 6: 4: 3: 2: 622: 611: 608: 606: 603: 601: 598: 597: 595: 580: 577: 575: 572: 571: 569: 565: 559: 556: 554: 551: 549: 545: 542: 540: 537: 535: 532: 530: 527: 526: 524: 522: 518: 512: 509: 507: 504: 502: 501:Stained glass 499: 497: 494: 492: 489: 487: 486:Rippled glass 484: 482: 479: 477: 474: 472: 469: 467: 464: 462: 459: 457: 454: 452: 449: 447: 444: 442: 439: 437: 434: 432: 429: 427: 426:Flashed glass 424: 422: 419: 417: 414: 412: 409: 407: 404: 402: 399: 397: 394: 392: 389: 387: 384: 382: 379: 377: 374: 372: 369: 367: 364: 362: 359: 357: 354: 352: 349: 348: 346: 340: 334: 331: 329: 326: 324: 321: 319: 316: 314: 311: 309: 306: 304: 301: 299: 296: 294: 291: 289: 286: 284: 281: 279: 276: 274: 273:Fritted glass 271: 269: 266: 265: 263: 257: 252: 245: 240: 238: 233: 231: 226: 225: 222: 199: 195: 189: 183: 179: 175: 171: 165: 150: 146: 140: 136: 128: 126: 122: 118: 114: 110: 106: 102: 98: 94: 89: 87: 83: 79: 75: 70: 68: 63: 59: 54: 52: 48: 44: 40: 36: 28: 22: 506:Studio glass 481:Porous glass 446:Glass mosaic 431:Forest glass 395: 342:Artistic and 201:. Retrieved 197: 188: 173: 169: 164: 152:. Retrieved 148: 139: 109:rolled plate 90: 71: 57: 55: 34: 33: 605:Glass types 456:Lampworking 396:Crown glass 391:Cased glass 386:Caneworking 381:Broad sheet 376:Blown plate 176:, 174–178. 125:float glass 97:blown plate 93:broad sheet 74:blown plate 62:pontil mark 35:Crown glass 30:Crown glass 594:Categories 466:Millefiori 366:Beadmaking 288:Glass wool 261:techniques 259:Commercial 253:techniques 131:References 548:Impactite 539:Sea glass 451:Glassware 411:Engraving 401:Cut glass 361:Glass art 356:Art glass 351:Āina-kāri 78:Soba East 496:Slumping 308:Pressing 154:June 15, 58:bullseye 43:blowpipe 567:Related 416:Etching 371:Blowing 333:Rolling 313:Casting 203:May 25, 471:Mirror 441:Fusing 82:Alodia 86:Rouen 47:punty 45:to a 39:blown 205:2016 156:2009 123:and 103:and 178:doi 596:: 196:. 174:72 172:, 147:. 127:. 119:, 115:, 111:, 99:, 95:, 546:/ 243:e 236:t 229:v 207:. 180:: 158:. 23:.

Index

Crown glass (optics)

blown
blowpipe
punty
centrifugal force
pontil mark
lead lattice work
blown plate
Soba East
Alodia
Rouen
broad sheet
blown plate
polished plate
cylinder blown sheet
rolled plate
machine drawn cylinder sheet
flat drawn sheet
single and twin ground polished plate
float glass
"The Glassblowing Process"
doi
10.1017/s0003581500071250
"Hand-blown glass: manufacturing process"
v
t
e
Glass production
Float glass process

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