Patent GB-1867-3087
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Although this patent does not seem to be explicitly a supplement, the same group of inventors filed another patent along similar lines earlier in 1867: Patent GB-1867-1291.
Sources
- Abridgment of patent specifications 1867–76 (1903), Class 4, p. 6–7. 3087. Grylls, H. W., Neville, H., and Holt, J. Nov. 2. [Provisional protection only.] Motors.-Relates to an arrangement of coil or other springs for propelling balloons and other aerial machines &c. The motive springs are contained in a cylinder or cylinders mounted on a shaft; at each end of the cylinder is placed a metal disc with slots at the sides, the two discs of each cylinder being bolted together. Each cylinder with its discs thus forms a drum or barrel enclosing a spring. The outer end of each is fastened to a sliding bar which projects through the slots in the discs; at the end of the drum, cog-wheels or chain-wheels are fitted to convey the power to a second shaft, on which the propellers of a balloon &c. are mounted. Each spring may be wound up separately, or they may all be wound up together by means of a flywheel and gearing or ratchet-wheels. A screw or lever brake is used for checking the speed or stopping the apparatus. For reversing the motion, an intermediate shaft is thrown into gear between the main shaft and second shaft.
| Year filed | 1867 |
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| Year granted | |
| Office | GB |
| Patent number | 3087 |
| Inventors | Henry William Grylls, H. Neville, J. W. Brooks, J. Holt |
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| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | |
| English title | [Propulsion system using springs] |
| Tech fields | propulsion, springs |
| Filing date | 1867-11-02 |
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| Granted? | 1 |
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| Related to aircraft? | 1 |
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| National tech categories | GB 4 |
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