Transactions of the Society Instituted at London for the Encouragement of Arts, Manufactures, and Commerce, Volúmenes 19-20 |
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Página 35
... IRON . To the person , in Great Britain , who shall make the greatest quantity of Bar - Iron , not less than ten tons , with Coak , from Coak - Pigs , equal in quality to the best iron imported from Sweden or Russia , and as fit for ...
... IRON . To the person , in Great Britain , who shall make the greatest quantity of Bar - Iron , not less than ten tons , with Coak , from Coak - Pigs , equal in quality to the best iron imported from Sweden or Russia , and as fit for ...
Página 36
Royal Society of Arts (Great Britain). 82. PRESERVING IRON FROM RUST . To the person who shall invent and discover to the Society a cheap composition , superior to any now in use , which shall effectually preserve Wrought Iron from Rust ...
Royal Society of Arts (Great Britain). 82. PRESERVING IRON FROM RUST . To the person who shall invent and discover to the Society a cheap composition , superior to any now in use , which shall effectually preserve Wrought Iron from Rust ...
Página 52
... iron or copper tunnels going through the rooms to con- vey the smoke , whereby the danger from such tunnels may be prevented ; the GOLD MEDAL , or FORTY GUINEAS . A Model , or complete Drawing and Description of the Method , with ...
... iron or copper tunnels going through the rooms to con- vey the smoke , whereby the danger from such tunnels may be prevented ; the GOLD MEDAL , or FORTY GUINEAS . A Model , or complete Drawing and Description of the Method , with ...
Página 121
... G. This coulter is connected with the share and the beam . H I. The sheath of the plough . K. The bridle or muzzle , to which the swingle - tree is to be fixed . LM . Two LM . Two wheels of cast iron , which may AGRICULTURE . 121.
... G. This coulter is connected with the share and the beam . H I. The sheath of the plough . K. The bridle or muzzle , to which the swingle - tree is to be fixed . LM . Two LM . Two wheels of cast iron , which may AGRICULTURE . 121.
Página 122
... irons O O , to which the axis of each wheel is fixed . These wheels regulate the depth which the share is to penetrate into the earth . P. A chain with an iron pin , to move the screws at O , The The SILVER MEDAL was this Session voted ...
... irons O O , to which the axis of each wheel is fixed . These wheels regulate the depth which the share is to penetrate into the earth . P. A chain with an iron pin , to move the screws at O , The The SILVER MEDAL was this Session voted ...
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ACCOUNTS and CERTIFICATES acres advantage Annatto Bart boat CHARLES TAYLOR Cheapside colour common copal crop cultivation drilled Drying Oils edulcoration effect English Elms engrafted expense experiments F. R. and A. S. farther feet FIFTY GUINEAS Fish-oil French Burr fruit George girder GOLD MEDAL greatest quantity ground Hemp Henry hitherto Honourable hundred improvement inches Inner Temple invent James John Larch last Tuesday less lever Life-Boat Machine Manufactures method Mill-stones mode Model obedient Servant observations PALLET Paper person placed plantations plants Plate ploughed pounds pounds weight premium is extended Premium offered present preserving produced proper CERTIFICATES purpose quantity of land Richard Robert sample second Tuesday seed ship SILVER MEDAL Society the best Society's soil South Shields sowing sown THIRTY GUINEAS Thomas THOMAS ANDREW KNIGHT tion trees Tuesday in February Tuesday in January Tuesday in November Turnips TWENTY GUINEAS vegetation weight Wheat wheel William
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Página 56 - Licences for that purpose under the Hand and Seal of the Governor or Commander in Chief of the...
Página 282 - From this part to the top of the stem it is more elliptical, forming a considerable projection. The sides, from the...
Página 332 - ... scapement then referred to. I beg leave to remark, that the train of wheels in mine is prevented from pressing against the locking, by the whole power of the remontoire-spring; so that the balance has only to remove the small remaining pressure, which does away that objection, and also that of the disadvantage of detents, as this locking may be compared to a light balance turning on fine pivots, without a pendulum-spring ; and has only the advantage of banking safe at two turns of the balance,...
Página 227 - half a pint of water in which an ounce of salt has been dissolved ; and having boiled them half an hour, pour them into a proper vessel, and let them stand till the separation of the oil, water, and lime be made, as in the preceding process.
Página 213 - Lewis's process, without injuring its colour; and this solution was made in the common way. It was much darker coloured in itself, but produced scarcely any difference in effect when mixed with colour. By experiments with each of these solutions I ascertained the following facts, viz.:— " Every colour, and all the tints compounded from it, were more brilliant than corresponding tints and colours mixed with the best drying oils to be procured from the shops. "Colours mixed with amber, after having...
Página 467 - TRANSACTIONS of the Society instituted at London for the Encouragement of Arts, Manufactures and Commerce, with the Premiums offered in the year 1783.
Página 229 - Transactions of the Society of Arts, vol. xix. 3 P. 688. 4 The recipe is as follows : — " Take 4 parts of balsam of copavi and one of copal. Powder and sift the copal, and throw it by degrees into the balsam of copavi, stirring it well each time it...
Página 320 - ... launches over it with vast rapidity, without shipping any water. It is necessary to observe, that there is often a strong reflux of sea, occasioned by the stranded wrecks, which requires both dispatch and care in the people employed, that the boat be not damaged. When the wreck is reached, if the wind blows to the land, the boat will come in shore without any other effort than steering. I would strongly recommend practising the boat, by which means, with experience, the danger will appear less,...
Página 309 - One prisoner only has died (a woman aged sixty) in the month of October last. At the opening of the spring assizes, 1801, (the time of the greatest numbers) there was not one prisoner sick, or in the hospital ward. " By this statement it appears, that the proportion of deaths is so much below the common average, in the ordinary situations of life, that the healthiness of this abode may be said to be peculiar...