 | Andrew Ure - 1845 - 312 sidor
...proportion of the metals in yellow brass is 30 zinc to 70 copper. Tombak, or red brass, in the cast state, is an alloy of copper and zinc, containing not more than 20 per cent. of the latter constituent. The following varieties are distinguished: 1, 2, 3, tombak for making gilt... | |
 | G.P. Putnam & Co - 1852 - 728 sidor
...usual proportion of metals in yellow brass, is 30 of zinc and 70 of copper. Toniback or red brass, is an alloy of copper and zinc containing not more than 20 per cent, of the hitter. Pinchbeck, is made of 2 parts copper and 1 of vellow brass. Prince's Metal, 3 parts copper... | |
 | Thomas Antisell - 1852 - 728 sidor
...The usual proportion of metala in yellow brass, is 30 of zinc and 70 of copper. Tomback or red brass, is an alloy of copper and zinc containing not more than 20 per cent, of the latter. Pinchbeck, is made of 2 parts copper and 1 of yellow brass. Prince's Metal, 3 parts copper... | |
 | Andrew Ure - 1856 - 1140 sidor
...proportion of the metals in yellow brass is SO zinc to 70 copper. Tombak, or Bed Brass, in the cast state, is an alloy^ of copper and zinc, containing not more than 20 per cent, of the latter constituent The following varieties are distinguished: — 1, 2, 8. tombak for making gilt... | |
 | Andrew Ure - 1860 - 972 sidor
...of Neustadt-Eberswald, in the neighbourhood of Berlin : — Tombak, or Red Brass, in the cast state, is an alloy of copper and zinc, containing not more than 20 per cent, of the latter constituent. The following varieties arc distinguished : — 1, 2, 3, tombak for making... | |
 | Andrew Ure - 1870 - 1134 sidor
...proportion of the metals in yellow brass is 30 zinc to 70 copper. Tombak, or Red Brass, in the cast state, is an alloy of copper and zinc, containing not more than 20 per cent, of the latter constituent. The following varieties are distinguished: — 1, 2, 3. tombak for making gilt... | |
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The mean proportion of the metals in yellow brass is 30 zinc to 70 copper. Tombak, or Red Brass, in the cast state, is an alloy of copper and zinc, containing not more than 20 per cent, of the latter constituent. The following varieties are distinguished:... 