 | Oliver Byrne - 1864 - 682 Seiten
...employed. Figs. 295 297 29ti 298. If the copper -bit have not been previously tinned, it is heated in a small charcoal stove or otherwise to a dull red,...strewed with powdered resin contained in the box, Fig. 296, or it is spread on the work with a small spoon ; the copper-bit is held in the right hand, the... | |
 | Oliver Byrne - 1874 - 718 Seiten
...now employed. • Figs. 295 297 298. I" the coprer-bit have not been previously tinned, it is heated in a small charcoal stove or otherwise to a dull red,...strewed with powdered resin contained in the box, Fig. 296, or it is spread on the work with a small spoon ; the copper-bit is held in the right hand, the... | |
 | Edward Henry Knight - 1877 - 984 Seiten
...it. red, hastily tiling otf the scale, so as to produce a clean metallic surface, and then rubbing, first upon a lump of sal-ammoniac and next upon a copper or tin plate on which u few drops of solder have been placed, and afterward wiped clean with tow. Various improved... | |
 | Oliver Byrne - 1878 - 720 Seiten
...employed. Figs. 295 297 298. IT the cop; er-bit have not been previously tinned, it is heated in i small charcoal stove or otherwise to a dull red, and...strewed with powdered resin contained in the box, Fig. 296, or it is spread on the work with a small spoon ; the copper-bit is held in the right hand, the... | |
 | Robert Hunter - 1883 - 426 Seiten
...dull red In a charcoal tire ; hastily tiled to a clean metallic surface; then rubbed immediately u]>on a lump of sal-ammoniac, and next upon a copper or...have been placed. This will completely coat the tool, which may be wiped clean with a piece of tow, and will then be ready for use. (Knight.) copper blende,... | |
 | Nehemiah Hawkins - 1909 - 710 Seiten
...a dull red in a cnarcoal fire ; hastily filed to a clean metallic surface, then rubbed immediately upon a lump of sal-ammoniac and next upon a copper...have been placed. This will completely coat the tool, which may be wiped clean with a piece of tow, and is now ready for use. Copper Bottomed. — In shipbuilding,... | |
 | Nehemiah Hawkins - 1909 - 714 Seiten
...dull red in a charcoal fire : hastily filed to » clean metallic surface, then rubbed immediately npon a lump of sal-ammoniac and next upon a copper or tin...have been placed. This will completely coat the tool, which may be wiped clean with a piece of tow, and is now ready for use. Copper Bottomed. — In shipbuilding,... | |
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I" the coprer-bit have not been previously tinned, it is heated in a small charcoal stove or otherwise to a dull red, and hastily filed to a clean metallic surface ; it is then rubbed immediately, first upon a lump of sal-ammoniac, and next upon a copper... 