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1828.mshaffer.com › Word [blow-pipe]
BLOW-PIPE, , n. [blow and pipe.] An instrument by which a blast or current of air is driven through the flame of a lamp or candle,and that flame directed upon a mineral substance, to fuse or vitrify it. Blow-pipe of the artist, a conical tube of brass, glass or other substance, usually a quarter of an inch in diameter at one end, and capillary or nearly so at the other, where it is bent nearly to a right angle. This is used to propel a jet of air from the lungs, through the flame of a lamp or candle, upon substance to be fused. Blow-pipe of the mineralogist, the same instrument substantially as the foregoing, but usually fitted with an ivory or silver mouth-piece, and with several movable jets to produce flames of different sizes. Its office is to produce instantly a furnace heat, on minute fragments of mineral substances, supported on charcoal, by platina forceps. &c. Compound Blow-pipe of Dr. Hare, invented in 1821, an instrument in which oxygen and hydrogen,propelled by hydrostatic or other pressure, coming from separate reservoirs,in the proportions requisite to form water, are made to unite in a capillary orifice, at the moment when they are kindled. The heat produced, when the focus is formed on charcoal or any non-conducting substance, is such as to melt every thing but the diamond, to burn the metals, and to dissipate in vapor, or in gaseous forms, most known substances. The blow-pipe of Newman, Clark, &c. is the compound blow-pipe of Dr. Hare, with some unimportant modifications.
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Evolution (or devolution) of this word [blow-pipe]
1828 Webster | 1844 Webster | 1913 Webster |
BLOW-PIPE, , n. [blow and pipe.] An instrument by which a blast or current of air is driven through the flame of a lamp or candle,and that flame directed upon a mineral substance, to fuse or vitrify it. Blow-pipe of the artist, a conical tube of brass, glass or other substance, usually a quarter of an inch in diameter at one end, and capillary or nearly so at the other, where it is bent nearly to a right angle. This is used to propel a jet of air from the lungs, through the flame of a lamp or candle, upon substance to be fused. Blow-pipe of the mineralogist, the same instrument substantially as the foregoing, but usually fitted with an ivory or silver mouth-piece, and with several movable jets to produce flames of different sizes. Its office is to produce instantly a furnace heat, on minute fragments of mineral substances, supported on charcoal, by platina forceps. &c. Compound Blow-pipe of Dr. Hare, invented in 1821, an instrument in which oxygen and hydrogen,propelled by hydrostatic or other pressure, coming from separate reservoirs,in the proportions requisite to form water, are made to unite in a capillary orifice, at the moment when they are kindled. The heat produced, when the focus is formed on charcoal or any non-conducting substance, is such as to melt every thing but the diamond, to burn the metals, and to dissipate in vapor, or in gaseous forms, most known substances. The blow-pipe of Newman, Clark, &c. is the compound blow-pipe of Dr. Hare, with some unimportant modifications. | BLOW'PIPE, n. [blow and pipe.]An instrument by which a blast or current of air is driven through the flame of a lamp or candle, and that flame directed upon a mineral substance, to fuse or vitrify it.
Blow-pipe of the artist, a conical tube of brass, glass or other substance, usually a quarter of an inch in diameter at one end, and capillary or nearly so at the other, where it is bent nearly to a right angle. This is used to propel a jet of air from the lungs, through the flame of a lamp or candle, upon the substance to be fused.
Blow-pipe of the mineralogist, the same instrument substantially as the foregoing, but usually fitted with an ivory or silver mouth-piece, and with several movable jets to produce flames of different sizes. Its office is to produce instantly a furnace heat, on minute fragments of mineral substances, supported on charcoal, by platina forceps, &c.
Compound blow-pipe of Dr. Hare, invented in 1801, an instrument in which oxygen and hydrogen, propelled by hydrostatic or other pressure, coming from separate reservoirs, in the proportions requisite to form water, are made to unite in a capillary orifice, at the moment when they are kindled. The heat produced, when the focus is formed on charcoal or any non-conducting substance, is such as to melt every thing but the diamond, to burn the metals, and to dissipate in vapor, or in gaseous forms, most known substances.
The blow-pipe of Newman, Clarke, &c., is the compound blow-pipe of Dr. Hare, with some unimportant modifications. – Silliman. | Blow"pipe`
- A tube for directing a jet of air into a fire or into the flame of a
lamp or candle, so as to concentrate the heat on some object.
- A blowgun; a blowtube.
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1828 Webster | 1844 Webster | 1913 Webster |
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Blow-pipe BLOW-PIPE, , noun [blow and pipe.] An instrument by which a blast or current of air is driven through the flame of a lamp or candle, and that flame directed upon a mineral substance, to fuse or vitrify it. BLOW-PIPE of the artist, a conical tube of brass, glass or other substance, usually a quarter of an inch in diameter at one end, and capillary or nearly so at the other, where it is bent nearly to a right angle. This is used to propel a jet of air from the lungs, through the flame of a lamp or candle, upon substance to be fused. BLOW-PIPE of the mineralogist, the same instrument substantially as the foregoing, but usually fitted with an ivory or silver mouth-piece, and with several movable jets to produce flames of different sizes. Its office is to produce instantly a furnace heat, on minute fragments of mineral substances, supported on charcoal, by platina forceps. etc. Compound blow-pipe of Dr. Hare, invented in 1821, an instrument in which oxygen and hydrogen, propelled by hydrostatic or other pressure, coming from separate reservoirs, in the proportions requisite to form water, are made to unite in a capillary orifice, at the moment when they are kindled. The heat produced, when the focus is formed on charcoal or any non-conducting substance, is such as to melt every thing but the diamond, to burn the metals, and to dissipate in vapor, or in gaseous forms, most known substances. The blow-pipe of Newman, Clark, etc. is the compound blow-pipe of Dr. Hare, with some unimportant modifications.
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* As a note, I have purchased each of these products. In fact, as we have been developing the Project:: 1828 Reprint, I have purchased several of the bulky hard-cover dictionaries. My opinion is that the 2000-page hard-cover edition is the only good viable solution at this time. The compact edition was a bit disappointing and the CD-ROM as well. |
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