Starting in the coal mines, by the mid-19th century elevators were operated with steam power and were used for moving goods in bulk in mines and factories. These steam driven devices were soon being applied to a diverse set of purposes - in 1823, two architects working in London, Burton and Hormer, built and operated a novel tourist attraction, which they called the "ascending room". It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown. 

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.
How were goods moved?
driven by what?
What attracted tourists?
Where was it built?
When was it built?
By whom?
What did Armstrong build?
In what year?
What was the primary purpose?
Where were the elevators used?
Was the crane a success?
What did it replace?
Why were they successful?
What  increased the lift power?
What did the attraction do?
What was the occupation of those who built it?
What was exploited?
What applied the pressure?
Was it a constant force?
What did this allow to be accomplished?
When were the elevators used?
elevators
 elevators
steam
steam
Ascending Room
built and operated a novel tourist attraction, which they called the "ascending room
London
London
1823
1823
Burton and Hormer
Burton and Hormer
hydraulic crane
 hydraulic crane 
1846
1846
Loading Cargo
 use at the Tyneside docks for loading cargo
mines and factories
mines and factories
yes
quickly supplanted the earlier steam driven elevator
steam driven elevators:
steam driven elevators:
they provided a much greater force
 they provided a much greater force
Counterweights
Counterweights and balances were also used to increase the lifting power of the apparatus.
It lifted customers up to show downtown.
 It elevated paying customers to a considerable height in the center of London, allowing them a magnificent panoramic view of downtown. 
they were two architects
 two architects
Pascal's law
 exploiting Pascal's law, they provided a much greater force.
A water pump
A water pump
No
. A water pump supplied a variable level of wate
level of the platform to be raised and lowered
evel of the platform (carrying a heavy load) to be raised and lowered
by the mid-19th century
 by the mid-19th century