Just found this very nice clear picture, in colour too, of GE

The drums in the foreground with the chains were meant to control the descent of the ship, as it descended down the slipway. At each end of the drums are friction brakes to control the descent speed. Each brake has a long radial arm, which was manned by several men.
At launch time, the ship slipped down the greased ramps with such speed and force, that the men were hurled into the air with fatal results! This caused the ship to "cross jam"……the rest is history!
Take a look at the quality of the plating!……..No wonder Great Britain ruled the seas?
Can you imagine the conditions down below, stoking the boilers all day by candlelight?……Or probably carbide lamps?
The chap in the top hat could be the designer…..John Scott Russel……..Brunel was the Boffin
Hope your share my pleasure in the history of GE?
Bob