A Treatise on the Progressive Improvement and Present State of the Manufactures in Metal, Volume 3Longman, Rees, Orme, Brown, and Green, 1834 - Ironwork |
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Page viii
... Lever Escapement CHAP . XVI . - -Re- 282 BRASS TOYS AND PINS . Clasps and Birmingham celebrated for its small Wares . -The Soho . - Brooches . - Pins . - Statutes concerning Pins . -Gloucester and London . -Important Results from a ...
... Lever Escapement CHAP . XVI . - -Re- 282 BRASS TOYS AND PINS . Clasps and Birmingham celebrated for its small Wares . -The Soho . - Brooches . - Pins . - Statutes concerning Pins . -Gloucester and London . -Important Results from a ...
Page 41
... lever , made to play up and down against its coun- terpart below . Fig . 3 . B น A ( fig . 3. ) represents a dish cover placed under the metal swages B , for the purpose of having the moulding on its edge raised to the proper degree of ...
... lever , made to play up and down against its coun- terpart below . Fig . 3 . B น A ( fig . 3. ) represents a dish cover placed under the metal swages B , for the purpose of having the moulding on its edge raised to the proper degree of ...
Page 71
... lever handle C , bent at the upper end , and usually made of iron . D , the spear , or bucket rod , having at its lower end a piston , with a valve opening upwards ; the top end of this rod passes through a hole in the projecting ...
... lever handle C , bent at the upper end , and usually made of iron . D , the spear , or bucket rod , having at its lower end a piston , with a valve opening upwards ; the top end of this rod passes through a hole in the projecting ...
Page 74
... lever , or handle , about seven feet in length , for working the machine , with its joints and shackles , a , b , f , which , together with the standard T , are all taken away when not wanted , by drawing out the forelock of the socket ...
... lever , or handle , about seven feet in length , for working the machine , with its joints and shackles , a , b , f , which , together with the standard T , are all taken away when not wanted , by drawing out the forelock of the socket ...
Page 75
... levers a , e , i , 0. These levers are quadrant - shaped within the box , and work upon pins , as shown at w . Immediately below each handle a tap projects , under which the measure is held while the liquor is pumped up ; any accidental ...
... levers a , e , i , 0. These levers are quadrant - shaped within the box , and work upon pins , as shown at w . Immediately below each handle a tap projects , under which the measure is held while the liquor is pumped up ; any accidental ...
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Common terms and phrases
afterwards alloy ancient appearance applied Argand burner attached bell Birmingham borax bottom brass Britannia metal bronze burnishing buttons calamine calcined called cast iron celts centre circular clock coin colour common considerable consists containing contrivance copper Cornwall crucible cupel described diameter edges feet fire furnace gold groove hammer heat hole inches ingenious instrument lamp latter lead lever manner manufacture means melted method microscope miners mines mould operation ornaments ounces oxide pallet patent pendulum perfect perforated pewter piece pinion pipe placed planishing plate pounds precious metals present produced proportion purpose quantity rack red heat reverberatory furnace rolling round sal-ammoniac sand screw sheet side silver slag slider sliding smelting solder sometimes sort spelter spindle stamped steel striking surface swages teeth telescope thickness tube turned vessels wares weight wheel wire workman zinc
Popular passages
Page 131 - ... a land of brooks of water, of fountains and depths that spring out of valleys and hills; a land of wheat, and barley, and vines, and...
Page 330 - And a river went out of Eden to water the garden; and from thence it was parted, and became into four heads. The name of the first is Pison: that is it which compasseth the whole land of Havilah, where there is gold; and the gold of that land is good: there is bdellium and the onyx stone.
Page 194 - I endeavoured in vain to assay a small part ; the natives regard it with superstitious veneration, and they would not allow even a grain to be filed off...
Page 336 - The vicinity of this river every where attests the extensive search for gold formerly pursued here, as it was for a length of time considered one of the richest parts of Brazil, from the profusion of the precious metal found on its surface. All the banks of the stream are furrowed out in a most extraordinary manner, so as to be altogether unaccountable to one unacquainted with the cause. The whole of the vegetable mould was washed away, and nothing remained but a red earth, cut into square channels,...
Page 338 - Streams abounding in gold wander through the most luxuriant corn-fields, and the farmer and the miner hold converse together on their banks.
Page 37 - ... this is an operation that requires great attention, because, as the plate is immersed in the grease while the tin is in a melting, or at least in a soft, state upon it, a part must run off, and the remainder become less and less while the plate continues in it ; therefore, if these plates should eve'r be left in the melted tallow longer than is absolutely necessary, they will doubtless require to be dipped a third time in the tin. On the other hand, if 'the plates were to be finished without...
Page 159 - Davy asserts that weak solutions of common salt, such as are daily made by adding a little salt to boiling vegetables and other eatables in our kitchens, act powerfully on copper vessels, although strong ones do not affect them.
Page 193 - Moscow, like the fullest tones of a vast organ, or the rolling of distant thunder. This bell is suspended in a tower called the belfry of St. Ivan, beneath others, which, though of less size, are enormous. It is...
Page 319 - In the year 1543, it was enacted, " that no person shall put to sale any pinnes, but only such as shall be double-headed, and have the heads soldered fast to the shank of the pinnes, well smoothed, the shank well shaped, the points well and round filed, counted and sharpened.
Page 66 - A second quantity of lead is poured in a similar manner, and a similar plate formed, the process being carried on with singular rapidity. The rough edges of the plates are then cut off', and they are soldered together for use.