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" In the first fire-engines, a boy was constantly employed to open and shut alternately the communication between the boiler and the cylinder, according as the piston either ascended or descended. One of those boys, who loved to play with his companions,... "
The Principles of Political Economy Applied to the Condition, the Resources ... - Página 59
por Francis Bowen - 1859 - 546 páginas
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An Inquiry Into the Nature and Causes of the Wealth of Nations, Volumen1

Adam Smith - 1789 - 526 páginas
...particular part of the work. In the firft fire-engines, a boy was conftantly employed to open and fhut alternately the communication between the boiler and the cylinder, according as the pifton either afcended or defcended. One of thole boys, who loved to play with his companions, obferved...
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The Prosaic Garland: Consisting of Upwards of Two-hundred Pieces Selected ...

John Evans - 1807 - 318 páginas
...towards finding out easier and readier methods of performing it. •• In the first fire-engines, a boy was constantly employed to open and shut alternately...communication between the boiler and the cylinder, accordingly as the piston either ascended or descended. One of these boys, who loved to play with his...
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An Inquiry Into the Nature and Causes of the Wealth of Nations, Volumen1

Adam Smith - 1809 - 372 páginas
...in order to facilitate and quicken their own particular part of the work. In the first fire-engines, a boy was constantly employed to open and shut alternately...a string from the handle of the valve which opened this communication to another part of the machine, the valve would open and shut without his assistance,...
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An Inquiry Into the Nature and Causes of the Wealth of Nations, Volumen1

Adam Smith - 1811 - 452 páginas
...in order to facilitate and quicken their own particular part of the work. In the first fire-engines, a boy was constantly employed to open and shut alternately the communication between the toiler and the cylinder, according as the piston either ascended or descended. One of those boys, who...
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The Works of Adam Smith, LL.D. and F.R.S. of London and Edinburgh:: The ...

Adam Smith - 1812 - 520 páginas
...particular part of the work. In the firft fire-engines, a boy was conftantly employed to open and fhut alternately the communication between the boiler and the cylinder, according as the pifton either afcended or defcended. One of thofe boys, who loved to play with his companions, obferved...
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The Works of Adam Smith: The nature and causes of the wealth of nations

Adam Smith - 1812 - 530 páginas
...particular part of the work. In the firft fire-engines, a boy was conftantly employed to open and fhut alternately the communication between the boiler and the cylinder, according as the pifton either afcended or defcended. One of thofe boys, who loved to play with his companions, obferved...
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Handbuch der englischen sprache und literature, Volumen1

H. Nolte - 1823 - 646 páginas
...hoy was constantly employed to open «ч<1 shut alternately the communication between the boiler ч . and the cylinder, according as the piston either ascended...descended. One of those boys, who loved to play with hi» companions, observed that, by tying a string from the handle of the valve which opened this communication...
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The Circulator of useful knowledge, amusement, literature, science and ...

1825 - 424 páginas
...quicken and facilitate their own particular part of the work. In the first steam-engines a boy was employed to open and shut, alternately, the communication...as the piston either ascended or descended. One of these boys who loved to play with his companions, observed that, by tying a string from the handle...
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Iron: An Illustrated Weekly Journal for Iron and Steel ..., Volumen1

Perry Fairfax Nursey - 1825 - 508 páginas
...thoughts towards finding out easier and readier methods of performing it. In the first steam-engines, a boy was constantly employed to open and shut alternately the communication between the boiïet and the cylinder, according as the piston either ascended or descended. One of these boys,...
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The Polar star, being a continuation of 'The Extractor', of ..., Volumen6

1831 - 444 páginas
...was the discovery of a boy, who wanted to save his own labour. When these engines were first used, a boy was constantly employed to open and shut alternately...communication between the boiler and the cylinder, according ai the piston either ascended or descended. One of these boys, who loved to play with his companions,...
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