In 1420 Filippo Brunelleschi was building the dome of the Doma in Florence, Italy and to get the building materials up to the highest reaches of the dome he invented a mechanical lift. It was not run by electricity, but mule/horse power, yet, it did have gears, pulleys, and wheels so it was mechanical.
Ariel lift is considered a mechanical device. It is used to provide temporary access for people or equipment to inaccessible areas.
Cyrus McCormick invented the mechanical reaper in 1834.
who invented the first mechanical digital calculator
The hydraulic lift was invented by Leon Edoux.
me
OTIS
If we are talking about aircraft lift, it was likely discovered, not invented. You can discover Gold, you don't invent it...
The first mechanical cooling system was invented by Dr. John Gorrie. -Qwasas
Two words, mechanical advantage.
1981
1915
The first mechanical pencil was invented in Britain in the early 1820s, and patented by John Hawkins and Sampson Mordon in 1822.