86:
40:
20:
348:
254:
Blow pokers are multifunctional fire irons. Primarily they are used to arrange the embers or firewood in a wood fire (the poker), secondarily they are used as a blow pipe. The term "BlowPoker" was introduced in 2005 by the German company Red Anvil GmbH, a manufacturer of fire irons and fireside
175:, whilst at the Surrey Institute, published in 1823 an account of a new blowpipe so constructed as to enable the operator to produce a flame of great size, power and brilliancy by burning large quantities of the mixed gases with the utmost safety. Gurney went on to employ the principles in his
126:, is credited with improving the design and application of the blowpipe. Gahn travelled with a portable blowpipe, applying it to every kind of chemical and mineralogical enquiry, such as proving the presence of copper in the ashes of vegetables. Gahn published a
195:
refers to a pipe used to blow a bubble of air into a gather of molten glass, as the first step in the creation of hand-blown glass bottles and bowls. By the end of the first century, the two primary glassblowing tools were the iron blowpipe and
162:
blowpipe. The vastly increased temperatures, and the volatility of hydrogen-oxygen mixes drove on the development of the so-called gas blowpipe as a tool, and at the same time brought many new materials into reach of the blowpipe as a tool for
105:. One Andreas Swab, a Swedish metallurgist and Counsellor of the College of Mines is credited with the first use of the blowpipe for 'pyrognostic operations', of which no record remains. The next person of eminence who used the blowpipe was
118:. Bergman's use of the blowpipe outstripped all of his predecessors, and he widened its application from mineralogy to inorganic chemistry, giving rise to what may be regarded as a masterpiece of philosophical investigation,
134:
worked with Gahn to ascertain in a systematic manner of the phenomena presented by different minerals when acted on by the blowpipe. He established, according to
Griffin, the notion that the blowpipe was an instrument of
113:
translation of
Cronstedt's work was made by Von Engestrom, annexed to which was a treatise on the blowpipe. Despite this opening, assay by blowpipe was for the time an occupation undertaken for the most part in
200:. Glassblowing blowpipes are long enough to keep the gather of molten glass at a safe distance from the glassblower and rigid enough to support the weight of the glass when the pipe is held horizontally.
74:
are commonplace. While blowing air is effective, blowing oxygen produces higher temperatures, and it is also practical to invert the roles of the gasses and blow fuel through air. Contemporary
255:
accessories. Their BlowPoker also has a plate to arrange the ashes. Since 2005 the term blow poker has established itself in the trade as a generic term for a multifunctional poker tool.
70:
to the workpiece or specimen. Starting in the late 18th
Century, blowpipes have been powered by mechanisms, initially bladders and bellows, but now blowers, compressors and compressed
243:
Blowpipes are straight, tube-like tools primarily used to direct oxygen to boost a wooden fire. Blowpipes have been in use for hundreds of years, but were first documented by
240:
Blowpipes are also known as "mouth bellows" (soufflet à bouche), "blow pokers", or just "blow pokes". They are used to start and stoke fires.
85:
142:
The blowpipes of all of the foregoing blasted air into a flame. The blow pipe was used by the
Egyptians at around 200 BCE and to today.
139:, and his published work, later translated into English, was regarded as one of the most useful books on practical chemistry extant.
101:
blowpipes have been used as scientific instruments for the analysis of small samples since about 1738, according to the accounts of
50:
If a stream or jet of air is directed through a flame, fuel air mixing is enhanced and the jet exiting the flame is intensely hot.
352:
67:
79:
295:
150:- of which he was co-discoverer - through a blowpipe to support the combustion of charcoal, in 1782. Others, such as
368:
131:
106:
373:
168:
109:, who put it to the purpose of the discrimination of minerals by means of fusible reagents. In 1770 an
151:
378:
291:
244:
123:
31:
refers to one of several tools used to direct streams of gases into any of several working media.
172:
317:
311:
143:
330:
110:
122:, published in Vienna in 1779 (and translated into English in 1788). Bergman's assistant,
102:
58:
have used the blowpipe since ancient times, with the blast being powered by the user's
39:
362:
269:
217:
208:
The term blowpipe is also used to refer to the pipe used to blow deliver air to the
299:
188:
159:
71:
63:
55:
62:. For small work, a mouth-blown blowpipe may be used with a candle flame or an
264:
176:
98:
19:
130:, which was reprinted a number of times in contemporary chemistry textbooks.
94:
75:
347:
229:
155:
221:
51:
209:
197:
147:
115:
82:
torches can be considered to be modern developments of the blowpipe.
313:
Oxford handbook of engineering and technology in the
Classical world
224:
operated version of a mouth-blown blowpipe, directing air through a
213:
164:
84:
38:
18:
225:
59:
220:. The blowpipe of a forge may be considered to be a large
89:
Kit for blowpipe analysis Carl
Osterland, Freiberg, c. 1870
43:
Diagram of a bellows-operated blowpipe, circa 1827, from
320:, ed., Oxford University Press, 2008. See page 536.
331:Metallics for Steelmaking -- Production and Use
296:A Practical Treatise on the Use of the Blowpipe
249:A Practical Treatise on the Use of the Blowpipe
45:A Practical Treatise on the Use of the Blowpipe
158:, and later mixed hydrogen and oxygen in the
8:
171:was a noted exponent of the improved tool.
66:, with established techniques for applying
236:Blowpipes for fireplaces or outdoor fires
333:, Allied Publishers, 2001. See page 82.
281:
287:
285:
7:
16:Tool used to direct a stream of gas
14:
146:is credited as the first to blow
346:
1:
68:oxidizing and reducing flames
80:oxy-fuel welding and cutting
54:and glassblowers engaged in
395:
183:Blowpipes in glassblowing
329:Amit Chatterjee, et al,
128:Treatise on the Blowpipe
204:Blowpipes in ironmaking
120:De Tubo Ferruminatorio
107:Axel Fredrik Cronstedt
90:
47:
24:
137:indispensable utility
88:
42:
35:Blowpipes for torches
22:
355:at Wikimedia Commons
152:Edward Daniel Clarke
132:Jöns Jakob Berzelius
353:Blowpipes (heaters)
310:F, Marianne Stern,
292:John Joseph Griffin
245:John Joseph Griffin
124:Johan Gottlieb Gahn
173:Goldsworthy Gurney
91:
48:
25:
351:Media related to
318:John Peter Oleson
247:in his 1827 book
144:Antoine Lavoisier
386:
369:Geological tools
350:
334:
327:
321:
308:
302:
289:
23:Manual blowpipe.
394:
393:
389:
388:
387:
385:
384:
383:
359:
358:
343:
338:
337:
328:
324:
309:
305:
290:
283:
278:
261:
238:
206:
185:
103:Torbern Bergman
37:
17:
12:
11:
5:
392:
390:
382:
381:
376:
371:
361:
360:
357:
356:
342:
341:External links
339:
336:
335:
322:
303:
280:
279:
277:
274:
273:
272:
267:
260:
257:
237:
234:
205:
202:
184:
181:
36:
33:
15:
13:
10:
9:
6:
4:
3:
2:
391:
380:
377:
375:
372:
370:
367:
366:
364:
354:
349:
345:
344:
340:
332:
326:
323:
319:
315:
314:
307:
304:
301:
297:
293:
288:
286:
282:
275:
271:
270:Spark testing
268:
266:
263:
262:
258:
256:
252:
250:
246:
241:
235:
233:
231:
227:
223:
219:
218:blast furnace
215:
211:
203:
201:
199:
194:
190:
182:
180:
178:
174:
170:
166:
161:
157:
153:
149:
145:
140:
138:
133:
129:
125:
121:
117:
112:
108:
104:
100:
96:
87:
83:
81:
77:
73:
72:gas cylinders
69:
65:
61:
57:
53:
46:
41:
34:
32:
30:
21:
374:Metalworking
325:
312:
306:
300:Google Books
253:
248:
242:
239:
207:
192:
189:glassblowing
186:
160:oxy-hydrogen
141:
136:
127:
119:
92:
64:alcohol lamp
49:
44:
28:
26:
191:, the term
169:Robert Hare
154:, employed
76:blowtorches
379:Mineralogy
363:Categories
276:References
265:Flame test
177:Bude light
99:mineralogy
95:chemistry
27:The term
259:See also
230:charcoal
193:blowpipe
156:hydrogen
56:lampwork
52:Jewelers
29:blowpipe
294:(1827)
232:flame.
222:bellows
210:tuyeres
111:English
198:pontil
148:oxygen
116:Sweden
214:forge
212:of a
165:assay
60:lungs
298:via
226:coal
97:and
78:and
228:or
216:or
187:In
167:.
93:In
365::
316:,
284:^
251:.
179:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
