 | Charles Holtzapffel - 1843 - 496 pages
...the model is made about onethird longer than the gun itself. The model when dried and washed over, is covered with a shell of loam, not less than three inches thick, secured by iron bands, the shell is also carefully dried ; after this the taper bar is driven out from its small end, the... | |
 | Charles Holtzapffel - Industrial arts - 1846 - 498 pages
...is made about onethird longer than the gun itself. The model when dried and blackwashed all over, is covered with a shell of loam, not less than three inches thick, secured by iron bands, the shell is also carefully dried ; after this the taper bar is cautiously driven out from its small... | |
 | Oliver Byrne - Electrometallurgy - 1864 - 682 pages
...made about one-third longer than the gun itself. The model when dried and blackwashed all over, is covered with a shell of loam, not less than three inches thick, secured by iron bands, the shell is also carefully dried ; after this the taper bar is cautiously driven out from its small... | |
 | Oliver Byrne - Metal-work - 1874 - 718 pages
...made about one-third longer than the gun itself. The model when dried and blackwashed all over, is covered with a shell of loam, not less than three inches thick, secured by iron bands, the shell is also carefully dried ; after this the taper bar is cautiously driven out from its small... | |
 | Edward Henry Knight - Industrial arts - 1876 - 1004 pages
...a long fire, a templet being applied to form the proper outline. This model is made about one third longer than the gun is to be. It is next, when dry,...of loam. The parts for the cascabel and trunnions are formed upon wooden models, and then attached to the exterior of the shell ; handles, dolphins,... | |
 | Oliver Byrne - Electroplating - 1878 - 720 pages
...made about one-third longer than the gun itself. The model when dried and blackwashed all over, is covered with a shell of loam, not less than three inches thick, secured ' by iron bands, the shell is also carefully dried ; after this the taper bar is cautiously driven out from its small... | |
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... of soft rope, upon which the loam is put for making the rough casting model of the gun, which is turned to a templet ; the work is executed over a long fire to dry it as it proceeds, and the model is made about onethird longer than the gun itself.... 