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In my view, the Christian religion is the most important and one of the first things in which all children, under a free government ought to be instructed... No truth is more evident to my mind than that the Christian religion must be the basis of any government intended to secure the rights and privileges of a free people.
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1828 Noah Webster Dictionary
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1828.mshaffer.comWord [blow-pipe]

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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.




Evolution (or devolution) of this word [blow-pipe]

1828 Webster1844 Webster1913 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`
  1. 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.

    * It is called a mouth blowpipe when used with the mouth; but for both chemical and industrial purposes, it is often worked by a bellows or other contrivance. The common mouth blowpipe is a tapering tube with a very small orifice at the end to be inserted in the flame. The oxyhydrogen blowpipe, invented by Dr. Hare in 1801, is an instrument in which oxygen and hydrogen, taken from separate reservoirs, in the proportions of two volumes of hydrogen to one of oxygen, are burned in a jet, under pressure. It gives a heat that will consume the diamond, fuse platinum, and dissipate in vapor, or in gaseous forms, most known substances.

  2. A blowgun; a blowtube.

    Blowpipe analysis (Chem.), analysis by means of the blowpipe. -- Blowpipe reaction (Chem.), the characteristic behavior of a substance subjected to a test by means of the blowpipe.

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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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Word of the Day

importance

IMPORT'ANCE, n.

1. Weight; consequence; a bearing on some interest; that quality of any thing by which it may affect a measure, interest or result. The education of youth is of great importance to a free government. A religious education is of infinite importance to every human being.

2. Weight or consequence in the scale of being.

Thy own importance know.

Nor bound thy narrow views to things below.

3. Weight or consequence in self-estimation.

He believes himself a man of importance.

4. Thing implied; matter; subject; importunity. [In these senses, obsolete.]

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