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"Cylinders showing piston in place and connected to crankshaft. Gasoline vapor is exploded in the cylinders. This pushes the piston down, and as the piston is connected to the crankshaft it starts the crankshaft turning. The piston and the rod that connect it to the crankshaft are just like the feet and limbs of any one riding a bicycle." -Bodmer, 1917

Building an Automobile, Step 03: Cylinders Showing Piston and Crankshaft

"Cylinders showing piston in place and connected to crankshaft. Gasoline vapor is exploded in the cylinders.…

"The gears or 'cogwheels' are for running the fan, the pump and other parts." -Bodmer, 1917

Building an Automobile, Step 04: Cogwheels

"The gears or 'cogwheels' are for running the fan, the pump and other parts." -Bodmer, 1917

An illustration of three men turning sea turtles right side up.

Turtle Turning

An illustration of three men turning sea turtles right side up.

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle of a carriage. It is designed to support the fore part of the body while allowing it to turn freely in a horizontal plane." Today, the fifth wheel is used in coupling of trailers and towing trucks. -Whitney, 1911

Fifth Wheel

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle…

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle of a carriage. It is designed to support the fore part of the body while allowing it to turn freely in a horizontal plane." Today, the fifth wheel is used in coupling of trailers and towing trucks. -Whitney, 1911

Fifth Wheel

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle…