 | 1789 - 504 pages
...turned round a cylindrical rod of tempered iron, called a mandril, whofe diameter is confiderably lefs than the intended bore of the barrel. The edges of...tube in lengths of two or three inches at a time, and hammering it with very briflc but moderate ftrokes, upon an anvil which has a number of femicircular... | |
 | Magné de Marolles - 1789 - 334 pages
...called a mandril, whofe diameter is confiderably lefs than the intended bore of the barrel. The edgesof the plate are made to overlap each .other about half...tube in lengths of two or three inches at a time, and hammering it with very brifk but moderate ftrokes, upon an anvil which has a number of femicircular... | |
 | W. Cleator - 1791 - 382 pages
...turned round a cylindrical rod of tempered iron, called a mandril^ whofe diameter is confiderably lefs than the intended bore of the barrel. The edges of...tube in lengths of two or three inches at a time, and hammering it with very brifk but moderate ftrokes, upon an anvil which has a number of femicircular... | |
 | 1789 - 682 pages
...turned round a cylindrical rod of tempered iron, called a mandril, whofe diameter is confiderably lefs than the intended bore of the barrel. The edges of...tube in lengths of two or three inches at a time, and hammering it with very briflc but moderate ftrokes, upon an anvil, which has a number of femicircular... | |
 | 1800 - 594 pages
...turned round a cylindrical rod of tempered iron, called a mandril, whofe diameter is confiderably lefs than the intended bore of the barrel. The edges of...tube in lengths of two or three inches at a time, and hammering it, with very brifk but moderate ftrokes, upon an anvil which has a number of femicircular... | |
 | 1800 - 596 pages
...turned round a cylindrical rod of tempered iron, called a mandril, whofe diameter is confiderably lei's than the intended bore of the barrel. The edges of...tube in lengths of two or three inches at a time, and hammering it, with very brifk but moderate fti'okes, upon an anvil which has a number of femicircular... | |
 | Henry James Pye - 1807 - 608 pages
...turned round a cylindrical rod of ' tempered iron, called a mandril, whofe diameter is confiderably lefs than the intended bore of the barrel. The edges of..."half an inch, and are welded together by heating thetube in lengths of two or three inches at a time, and hammering it, with very brilk but moderate... | |
 | John Mason Good - 1813 - 714 pages
...heating and hammering, turned round a cylindrical rod of tempered iron, called a mandril, whose diameter is considerably less than the intended bore of the...tube in lengths of two or three inches at a time, and hammering it, with very brisk but moderate strokes, upon an anvil which has a number of semicircular... | |
 | Thomas Martin (civil engineer.) - 1813 - 714 pages
...heating and hammering, turned round a cylindrical rod of tempered iron, called a mandril, whose diameter is considerably less than the intended bore of the...the plate are made to overlap each other about half uu inch, and are welded together by heating the tube in lengths of two or three inches at a time, and... | |
 | Thomas Burgeland Johnson - 1814 - 312 pages
...heating and hammering, turned round a cylindrical rod of tempered iron, called a mandril, whose diameter is considerably less than the .intended bore of the...tube in lengths of two or three inches at a time, and hammering it upon an anvil that has a number of semicircular furrows in it, adapted to the various... | |
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... than the intended bore of the barrel. The edges of the plate are made to overlap each other about half an inch, and are welded together by heating the tube in lengths of two or three inches at a time, and hammering it with very... 
