Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 243
t by theapplication of the hydraulic principle, a very few men are able to workthe largest guns with the greatest ease, for their personal labour is thusreduced to the mere manipulation of levers. On board ship the powerrequired for working large guns has lately been sometimes supplied by asystem… … FIRE-ARMS. 205 poised on their bearings and provided with such accurately fitted racks,pinions, etc., that a steel gun of 10 ft. in length can easily be pointed inany direction by the touch of a childs hand. The mechanical arrange-ments are now so admirably adapted for facility of working that,…
Inventions
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![An illustration from Astounding Stories of Super-Science v04 n01 [1930-10] (1930)](https://img.insideoutlibrary.com/img/200/ia-astounding-stories-v-04-n-01-1930-10-96-0.webp)
