. Motion picture electricity. They are all connected by pipes D, E, F andH. Suppose we start pump Clifting the water from thelower tank through pipes D andE, filling upper tank A. Therewill be created a water pressurethrough pipe F at the motor the starting valve on themotor is open, the water willcause the motor to rotate, dis-charging through pipe H intothe lower tank, thus completingthe continuous flow of water,which it takes power to createthrough the pump C and whichis available at another pointthrough the water motor is a good representation ofthe direct current electric gen-
. Motion picture electricity. They are all connected by pipes D, E, F andH. Suppose we start pump Clifting the water from thelower tank through pipes D andE, filling upper tank A. Therewill be created a water pressurethrough pipe F at the motor the starting valve on themotor is open, the water willcause the motor to rotate, dis-charging through pipe H intothe lower tank, thus completingthe continuous flow of water,which it takes power to createthrough the pump C and whichis available at another pointthrough the water motor is a good representation ofthe direct current electric gen-erating system, in which thepump C and the tank A wouldrepresent the electric genera-tor and the water motor G, theelectric motor. Fig. 6 illustrates another typeof water system in which theflow of water is not to the illustration:A is the cylinder of an enginehaving a piston —D, which canexert movement of a crank,shaft and flywheel through thepiston rod K. The cylinder Ais connected by two pipes E and. MOTION PICTURE ELECTRICITY 33 F, with another similar pump, cylinder B having a pistonC, connected with a piston rod. The operation of thiswater system is as follows: By moving the piston rod and consequently the pistonC towards J, that is, by pulling it out as if it were con-nected to a crank, the water J will be compressed andforced up through the pipe F into cylinder A on the sideindicated by I, creating a pressure on motor piston Dwhich will, through piston rod K, start the engine back-wards. When the piston C has been pulled out to a stop, A iiiiiiiiiniii u lllllllliilll 111 K llllilillillillll II r ! [o I N F b/> « (i ??mm ?minim i —«y
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Keywords: ., bo, bookcentury1900, bookdecade1910, bookidmotionpictureele00hall
