The Emporium of Arts & Sciences, Volume 1John Redman Coxe, Thomas Cooper J. Delaplaine, 1815 - Industrial arts Contains instructional essays on a wide range of topics, including, but not limited to: the art of making gun flints, the construction of a movable table for the use of engravers, preparing ox-gall, blowing up rocks under water, the manufacture of iron and steel wire and gilt buttons, methods of telegraphic signalling (including smoke signals), and methods for preparing varnishes. Also contains numerous reports on topics such as: spontaneous combustion, the effect of magnetism on time-pieces, the remains of a woolly mammoth, the wines and champagne of France, the construction of theaters (and their acoustical properties), the qualities of rapeseed oil, and many other topics. |
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Page 35
... diameter to receive it and enable it to stand steady . At 6 inches from the top of the furnace there should be an horizontal side flue of 6 inches by 6 inches , and 9 inches long , with one end opening into the furnace , and the other ...
... diameter to receive it and enable it to stand steady . At 6 inches from the top of the furnace there should be an horizontal side flue of 6 inches by 6 inches , and 9 inches long , with one end opening into the furnace , and the other ...
Page 91
... diameter . To the remainder of this mixture , after the oxygen is taken up , ought to be attributed the natu- ral tendency , which most malleable iron made in this pro- cess , has of becoming red - short . The average of the results of ...
... diameter . To the remainder of this mixture , after the oxygen is taken up , ought to be attributed the natu- ral tendency , which most malleable iron made in this pro- cess , has of becoming red - short . The average of the results of ...
Page 94
... diameter . This mode of ranging the large and small sizes is continued till such time as the pile is deemed sufficiently large . The total width may then measure from 20 to 30 feet . The last layer is commonly composed of small brush ...
... diameter . This mode of ranging the large and small sizes is continued till such time as the pile is deemed sufficiently large . The total width may then measure from 20 to 30 feet . The last layer is commonly composed of small brush ...
Page 95
... diameter , a row of holes is opened a few inches below , each about two inches diameter . The hole at the top is then entirely shut up , and the fire , now completely spread , slowly descends to where the air is ad- mitted by means of ...
... diameter , a row of holes is opened a few inches below , each about two inches diameter . The hole at the top is then entirely shut up , and the fire , now completely spread , slowly descends to where the air is ad- mitted by means of ...
Page 111
... diameter within , and the floor laid with common brick set edgeways . The wall of the oven rises 19 inches perpendicular above the floor , and the whole is then covered with a brick arch which rises 3 feet 5 inches more , forming nearly ...
... diameter within , and the floor laid with common brick set edgeways . The wall of the oven rises 19 inches perpendicular above the floor , and the whole is then covered with a brick arch which rises 3 feet 5 inches more , forming nearly ...
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Common terms and phrases
appears argillaceous bar iron becomes blast blast-furnace blistered steel bottle button calcareous carbonat carbonic acid carburetted cast iron cast steel cent char charcoal clay coaks coal cokes colour combination combustion common contain cool crucible crude iron degree of heat diameter distillation earth effects England equal experiments exposed feet fire flame flavour fluid flux forge fracture fuel furnace fused fusibility fusion glass grains gypsum half hammer hardened Hence hydrogen inches iron-stone less lime limestone liquor magnesia malleable iron manufacture means melted metal method mixed mixture mould Mushet nearly obtained operation oxyd oxygen pieces pit-coal plants plates portion potash produce proportion pure quantity of carbon red heat require salt scoria silex smelting specific gravity stone substance sufficient sulphat sulphur surface temperature thick tilt hammer tion various vegetable vessel vitriol weight welding wine wood
Popular passages
Page 498 - Give strong drink unto him that is ready to perish, and wine unto those that be of heavy hearts. Let him drink and forget his poverty and remember his misery no more.
Page 486 - It ascends me into the brain ; dries me there all the foolish and dull and crudy vapours which environ it; makes it apprehensive, quick, forgetive, full of nimble, fiery, and delectable shapes; which delivered o'er to the voice, — the tongue, — which is the birth, becomes excellent wit.
Page 486 - A good sherrissack hath a twofold operation in it: it ascends me into the brain, dries me there all the foolish and dull and crudy vapours which environ it, makes it apprehensive, quick, forgetive, full of nimble, fiery and delectable shapes, which delivered o'er to the voice, the tongue, which is the birth, becomes excellent wit.
Page 112 - The heat which the oven acquires in the former operation is always sufficient of itself to light up the new charge ; the combustion of which is accelerated by the atmospheric air that rushes in through the joints of the loose bricks in the doorway. In two or three hours the combustion gets to such a height, that they find it necessary to check the influx of atmospheric air...
Page 113 - ... receptacle similar to a baker's oven, previously brought to a red heat. Here the door is constantly open, and the heat of the oven is sufficient to dissipate all the bitumen, of the coals, the disengagement of which is promoted by frequently stirring with a long iron rake.
Page 7 - ... employed in it, by all the ties of habit and of interest, to their own country ; while foreign trade tends to denationalize the affections of those whose property is dispersed in foreign countries, whose interests are connected with foreign interests, whose capital is but partially invested at the place of their domicil, and who can remove with comparative facility from one country to another. The wise man observed of old, that 'where the treasure is, there will the heart be also ;' and time...
Page 112 - Which is generally quite ofF in 12 hours more ; a few loose stones are then laid on the top of the chimney, and closely covered up with a thick bed of sand or earth. All connexion with the atmosphere is now cut off, and in this situation the whole remains for 12 hours, to complete the operation. The door-way is then opened, and the coaks are raked out into wheelbarrows, to be carted away.