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" Hu. 15, 1016. 10 per cent. These briquets are hard and firm and resemble coal briquets in general appearance. Although the various presses differ greatly in the details of their construction, most of them work on the cylinder-and-plunger principle, the... "
Forest Resources of Chile as a Basis for Industrial Expansion - Página 237
por United States. Forest Service, Irvine Theodore Haig - 1946 - 256 páginas
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Bulletin of the U.S. Department of Agriculture

1921 - 1548 páginas
...differ greatly in the details of their construction, most of them work on the cylinder-and-plunger principle, the plunger being driven by means of crank and connecting rod or by some toggle-joint system of levers so designed that it is capable of exerting a very great pressure at the...
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The Use of Wood for Fuel

United States. Department of Agriculture - 1919 - 54 páginas
...differ greatly in the details of their construction, most of them work on the cylinder-and-plunger principle, the plunger being driven by means of crank and connecting rod or by some toggle-joint system of levers so designed that it is capable of exerting a very great pressure at the...
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Report, Tema 842

1945 - 12 páginas
...pipes. Types of Equipment Although the various presses for making briquets differ greatly in their details of construction, most of them work on the...driven by means of crank and connecting rod or by some toggle-joint system of levers so designed that it is capable of exerting great pressure at the end...
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