 | American Academy of Arts and Sciences - 1857 - 532 páginas
...furnace and at a welding heat, and afterwards pressed together in a mould by a hydrostatic press of 1,000 tons' force. Finding in the early stage of the manufacture...previously formed steel ring. Eight of these guns were 6-pgunders of the common United States bronze pattern, and eleven were 32-pounders of about 80 inches'... | |
 | 1857 - 426 páginas
...furnace and at a welding heat, and afterwards pressed together in a mould by a hydrostatic press of 1,000 tons' force. Finding in the early stage of the manufacture...those made afterwards with a lining of steel, the wrought iron bars being wound upon a previously formed steel ring. Eight of these guns were 6-pounders... | |
 | 1857 - 424 páginas
...furnace and at a welding heat, and afterwards pressed together in a mould by a hydrostatic press of 1,000 tons' force. Finding in the early stage of the manufacture...those made afterwards with a lining of steel, the wrought iron bars being wound upon a previously formed steel ring. Eight of these guns were 6-pounders... | |
 | 1857 - 424 páginas
...furnace and at a welding heat, and afterwards pressed together in a mould by a hydrostatic press of 1,000 tons' force. Finding in the early stage of the manufacture that the softness of the wrought iron was a serions defect, I formed those made afterwards with a lining of steel, the wrought iron bars being... | |
 | Andrew Ure - 1860 - 972 páginas
...furnace and at a welding heat, and afterwards pressed together in a mould by a hydrostatic press of 1000 tons force." Finding in the early stage of the manufacture...softness of the wrought iron was a serious defect, he formed those made afterwards with a lining of steel, the wrought-iron bars being wound upon a previously... | |
 | 1866 - 460 páginas
...furnace at a welding heat, and afterwards pressed together in a mould by a hydrostatic press of 1000 tons' force. Finding in the early stage of the manufacture...those made afterwards with a lining of steel, the wrought iron bars being wound upon a previously formed steel ring. Eight of these guns were 6-pounders... | |
 | 1867 - 400 páginas
...in the early stage of the manufacture that the softness of the wrought-iron was a serious defect, 1 formed those made afterwards with a lining of steel,...wound upon a previously formed steel ring. Eight of theseguns were six-pounders, of the common United States bronze pattern, and eleven were thirty-two-pounders,... | |
 | Andrew Ure - 1867 - 1006 páginas
...furnace and at a welding heat, and afterwards pressed together in a mould by a hydrostatic press of 100O tons force." Finding in the early stage of the manufacture...softness of the wrought iron was a serious defect, he formed those made afterwards with a lining of steel, the wrought-iron bars being wound upon a previously... | |
 | 1857 - 426 páginas
...and at a •welding heat, and afterwards pressed together in a mould by a hydrostatic press of 1,000 tons' force. Finding in the early stage of the manufacture...those made afterwards with a lining of steel, the wrought iron bars being -wound upon a previously formed steel ring. Eight of these guns were 6-pounders... | |
 | 1873 - 800 páginas
...iron was a serious defect, I formed those made afterwards with a lining of steel, the wrought iron bars being wound upon a previously formed steel ring. Eight of these guns were 6-pounders of the common United States bronze pattern, and eleven were 32-pounders, about eighty inches... | |
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... cylinders, welded together endwise. Each ring was made of bars wound upon an arbor spirally, like winding a ribbon upon a block, and, being welded and shaped in dies, were joined endwise, when in the furnace and at a welding heat, and afterwards pressed... 