gq: The hydraulic crane was invented by Sir William Armstrong in 1846, primarily for use at the Tyneside docks for loading cargo. These quickly supplanted the earlier steam driven elevators: exploiting Pascal's law, they provided a much greater force. A water pump supplied a variable level of water pressure to a plunger encased inside a vertical cylinder, allowing the level of the platform (carrying a heavy load) to be raised and lowered. Counterweights and balances were also used to increase the lifting power of the apparatus.
Question: Who invented the hydraulic crane in 1846? Question: Were was the hydraulic crane initially used? Question: In what manner did hydraulic cranes employ Pascal's law? Question: The water pump supplied water pressure to a plunger located where? Question: besides water pressure, what else was used to increase the lifting power?