 | Perry Fairfax Nursey - 1840 - 706 pages
...sufficiently to be slightly corroded. I then washed the copper in water, and put it in action as befure described. In forty-eight hours I examined it, and...returned, I found the lines were cleared out so as to he wedgeshaped, or somewhat in the form of a Vi leaving a hair line of the copper exposed at the bottom,... | |
 | 1840 - 488 pages
...nitrous gas, that the exposed portions were acted upon sufficiently to be slightly corroded. I then washed the copper in water, and put it in action as...itself with the sheet on which it was deposited." One other quotation from Mr. Spencer's paper, read before the Liverpool Polytechnic Society, we must... | |
 | Oliver Byrne - 1874 - 718 pages
...perceived, by an elimination of nitrous gas, that the exposed portions were acted upon sufficiently to be slightly corroded. I washed the copper in water, and...copper had completely combined itself with the sheet oa which it was deposited. " I then gave a plate a coating of cement to a considerable thickness, and... | |
 | George Gore - 1877 - 490 pages
...perceived, by an elimination of nitrous gas, that the exposed portions were acted upon sufficiently to be slightly corroded. I washed the copper in water, and...copper had completely combined itself with the sheet in which it was deposited. ' I then gave a plate a coating of cement to a considerable thickness, and... | |
 | George Gore - 1877 - 424 pages
...perceived, by an elimination of nitrous gas, that the exposed portions were acted upon sufficiently to be slightly corroded. I washed the copper in water, and...copper had completely combined itself with the sheet in which it was deposited. ' I then gave a plate a coating of cement to a considerable thickness, and... | |
 | Oliver Byrne - 1878 - 720 pages
...lines were entirely tilled with copper, I applied heat, and then spirits of turpentine, to get oft' the cement, and, to my satisfaction, I found that...copper had completely combined itself with the sheet ot which it was deposited. " I then gave a plate a coating of cement to a considerable thickness, and... | |
 | Alexander Watt (F. R. S. A.) - 1887 - 646 pages
...examined it, and found the lines were entirely filled with copper ; I applied heat, and then spirit of turpentine, to get off the cement ; and, to my...cement to a considerable thickness, and sent it to on engraver ; but when it was returned, I found the lines were cleared out, so as to be wedge-shaped,... | |
 | Alexander Watt (F.R.S.A.) - 1902 - 784 pages
...filled with copper ; I applied heat, and then spirit of turpentine, to get off the cement ; and, to iny satisfaction, I found that the voltaic copper had...cleared out, so as to be wedge-shaped, or somewhat in form of a V, leaving a hair line of copper exposed at the bottom and broad space near the surface ;... | |
 | Alexander Watt, Arnold Philip - 1911 - 754 pages
...examined it, and found the lines were entirely filled with copper ; I applied heat, and then spirit of turpentine, to get off the cement ; and, to my...cleared out, so as to be wedge-shaped, or somewhat in form of a V, leaving a hair line of copper exposed at the bottom and broad space near the surface ;... | |
 | Alexander Watt, Arnold Philip - 2005 - 712 pages
...examined it, and found the lines were entirely filled with copper; I applied heat, and then spirit of turpentine, to get off the cement; and, to my satisfaction, I found that the voltsio copper had completely combined itself with the sheet on which it was deposited. “I then gave... | |
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I washed the copper in water, and put it in action as before described. In forty-eight hours I examined it, and found the lines were entirely filled with copper, I applied heat, and then spirits of turpentine, to get off the cement, and, to my satisfaction,... 