Inventions
In the 1920s Pullin developed various helicopter engine patents and in the 1940s he developed the Powerwheel, a rotary engine in the hub of a motorcycle wheel, a rotating single-cylinder engine known as a one-lunger. This consisted of just the cylinder and a clutch which could be engaged and disengaged, with a simple drum brake. The invention never entered production but is credited as an important step in rotary engine development.
His sister was married to Stephen Leslie Bailey, a then prominent engineer at Douglas Motorcycles and many of his patents were filed under the name of that company.
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Famous quotes containing the word inventions:
“New inventions can and will be made; however, nothing new can be thought of that concerns moral man. Everything has already been thought and said which at best we can express in different forms and give new expressions to.”
—Johann Wolfgang Von Goethe (1749–1832)
“In America, the geography is sublime, but the men are not: the inventions are excellent, but the inventors one is sometimes ashamed of.”
—Ralph Waldo Emerson (1803–1882)
“Our inventions are wont to be pretty toys, which distract our attention from serious things. They are but improved means to an unimproved end, an end which it was already but too easy to arrive at; as railroads lead to Boston or New York.”
—Henry David Thoreau (1817–1862)