US Patent: 5,437X
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Steam Engine
Double Rack and Twin Wheels Applied to Steam Engines
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Patentee:
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| Joseph Woodhull (exact or similar names) - Rochester, Monroe County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 06, 1829 |
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Joel Havens
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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.
“The specification describes various modes of dispensing with the crank motion in steam engines, by using a frame with teeth on the inside, for wheels, or sections of wheels, to work in, both in the ascending and descending stroke of the piston.
We have had previous occasions to remark upon similar plans, as the object above proposed has been pursued by a number of inventors, who have thrown away much ingenuity in devising their schemes and expended large sums in their execution. We do not think it necessary to describe the particular modes patented by Mr. Woodhull. He has at least twenty predecessors among patentees, and many hundreds among inventors. Several of the schemes have shown great skill, but we think that in these cases, skill has been applied to the getting rid of a simple, excellent, and perfect action, to adopt one which is complex and useless. We, in common with the great body of mechanicians, believe the crank motion to be the best which can be devised, for receiving the power from the piston rod, and gradually arresting the momentum of the vibrating mass of matter in the beam and its appendages."
Journal of the Franklin Institute Vol. 4, Jul. 1829 pgs. 51-52
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