What well known lifting device was named after a London hangman?

Derrick: He delights in relating curious and incidental facts: that the sort of mechanical crane known as a "derrick", for example, was named after the London hangman who invented "an ingenious structure" for hanging twenty-three condemned at one time.

The device was named for its resemblance to a type of gallows from which a hangman's noose hangs. The derrick type of gallows in turn got its name from Thomas Derrick, an English executioner from the Elizabethan era.

https://en.wikipedia.org/wiki/Thomas_Derrick

https://en.wikipedia.org/wiki/Derrick

http://www.eclectica.org/v4n4/skea_ackroyd.html

Derrick?

A spar fixed on board a ship used for hoisting cargo, boats etc. The name Derrrick comes from a 17th Century hangman of that name who plied his trade at Tyburn in London - a place of public execution close to the current location of Marble Arch.

http://www.shipsnostalgia.com/guides/Nautical_Terms_A-D