However, partly to be able to utilize untrained people, partly to overcome the resistance necessarily caused by friction and the weight of the larger machines, I have thought of various other mechanisms for operating the machines.
(the resistance; necessarily caused; by friction and the weight of the larger machines) (I; have thought; of various other mechanisms for operating the machines)
the resistance I
necessarily caused have thought
by friction and the weight of the larger machines
of various other mechanisms for operating the machines