The British encyclopedia, or, Dictionary of arts and sciences, Том 3 |
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We have selected an engine by this maker to give a drawing and description , as it is greatly supe- rior to the common engine with two force pumps . As that kind of engine has so often been described by various authors , and its ...
We have selected an engine by this maker to give a drawing and description , as it is greatly supe- rior to the common engine with two force pumps . As that kind of engine has so often been described by various authors , and its ...
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... though each of these pistons is pressed by a force equivalent to more than a thousand pounds , they will remain ... thence to F , until it acts above the piston F. This pressure forces down the piston , and if there be any water ...
... though each of these pistons is pressed by a force equivalent to more than a thousand pounds , they will remain ... thence to F , until it acts above the piston F. This pressure forces down the piston , and if there be any water ...
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... to carry the pis- ton onwards a little , so as completely to shut one set of valves and open another ; in the present judicious construction the tumbler performs the office of the expansive force of steam at the end of the stroke .
... to carry the pis- ton onwards a little , so as completely to shut one set of valves and open another ; in the present judicious construction the tumbler performs the office of the expansive force of steam at the end of the stroke .
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... which admitting the aqua fortis freely to the copper , it bites deeper , and is less apt by acting laterally to force off the resin , besides , the plate will of course afford a greater number of impressions .
... which admitting the aqua fortis freely to the copper , it bites deeper , and is less apt by acting laterally to force off the resin , besides , the plate will of course afford a greater number of impressions .
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... or in gaol , or a breach of prison , will not excuse the sheriff from being guilty of , and answering for the escape ; for he ought to have sufficient force to keep him , seeing he may command the power of the county .
... or in gaol , or a breach of prison , will not excuse the sheriff from being guilty of , and answering for the escape ; for he ought to have sufficient force to keep him , seeing he may command the power of the county .
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