GB Patent: GB-180,903,211
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| Differential screw threads
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Patentee:
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| Edward Steers (exact or similar names) - London, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Mar. 01, 1809 |
Espacenet patent
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Jeff Joslin
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Description: |
| The invention is a method using screw threads "by the screw and nut being made to revolve together either in the same or in a contrary direction. If they turn in the same direction, the one somewhat faster than the other, an increase of power is obtained; if in a contrary direction, there is an increase of motion produced." |
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