United States Naval Institute Proceedings, Томови 3-4U.S. Naval Institute, 1877 |
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Страница 29
... heavy piece of bronze was bolted to the right and below the rear of the bore . This piece of bronze had a groove , in which travelled a saddle so shaped as to receive and hold the breech - block when withdrawn ; by pulling to the right ...
... heavy piece of bronze was bolted to the right and below the rear of the bore . This piece of bronze had a groove , in which travelled a saddle so shaped as to receive and hold the breech - block when withdrawn ; by pulling to the right ...
Страница 31
... heavy guns , built I believe on the Vavasseur plan of hooping . This change cannot be called completed yet , however , as the steel is not considered fully enough worked up for the heavy calibres . Another point of interest is the ...
... heavy guns , built I believe on the Vavasseur plan of hooping . This change cannot be called completed yet , however , as the steel is not considered fully enough worked up for the heavy calibres . Another point of interest is the ...
Страница 34
... heavy calibres , it became necessary amongst other things to find a suitable groove . Guns rifled on different principles were submitted to a compet- itive test . The most prominent of these systems were the Lancaster , Whitworth ...
... heavy calibres , it became necessary amongst other things to find a suitable groove . Guns rifled on different principles were submitted to a compet- itive test . The most prominent of these systems were the Lancaster , Whitworth ...
Страница 36
... heavy and working free- ly through a small arc so that the joint could be tightened or loosened by the shock of driving the crank around . This gun has remained al- most unchanged ever since as a light piece for broadside and boat ser ...
... heavy and working free- ly through a small arc so that the joint could be tightened or loosened by the shock of driving the crank around . This gun has remained al- most unchanged ever since as a light piece for broadside and boat ser ...
Страница 38
... heavy , short shaft with a disc on the end not unlike a piston and rod . The disc being pushed in from the rear formed the bottom of the bore when home . After it was in place it was keyed by a heavy cylindrical bar fitting through the ...
... heavy , short shaft with a disc on the end not unlike a piston and rod . The disc being pushed in from the rear formed the bottom of the bore when home . After it was in place it was keyed by a heavy cylindrical bar fitting through the ...
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