Patent GB-1867-3036
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Modifications to Giffard's captive balloon system already described in Patent GB-1867-466.
Sources
- Brewer and Alexander, 1893, Aeronautics
- Neilson, 1910, Aeroplane Patents, p71
- Abridgment of patent specifications 1867–76 (1903), Class 4, p. 6. 3036. Henry, M., [Giffard, H.]. Oct. 28. Aërostats.-Relates, mainly, to captive balloons for military or other purposes, and consists of improvements on the invention described in Specification No. 466, A.D. 1867. Instead of using an elastic arrangement for counteracting the variations of volume due to differences of altitude and temperature, the suspending-cords S are shortened so that the lower part of the balloon assumes a more spherical form as the volume of the gas increases. A heavy and weighted covering may be used for the same purpose. The pressure of the gas at the lower part of the balloon is regulated by a set of self-acting safety-valves, each having a cord by which it may be actuated by hand. The cord of the top valve g is enclosed in a flexible tube running down through the centre of the balloon and terminating in a flexible bag within reach of the hand. The inflating-pipe is attached to a short tube on this valve. The anchoring-cable B, fitted with a dynamometer p, is attached to the hoop c, and passes through the centre of the car G (which is annular), and thence round a counterbalanced pulley r to a winch, which is preferably worked by two double-cylinder steam ropes e. engines. The balloon, when at rest, is anchored by cables a, each having an elastic portion, and The body of the balloon should be double, i.e., of two thicknesses with india-rubber between; the india-rubber may be vulcanized, mineralized, &c. The sections may be cemented or stitched together, the seams being covered by strips of rubber &c. and the whole being coated with linseed oil or the like.
| Year filed | 1867 |
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| Year granted | |
| Office | GB |
| Patent number | 3036 |
| Inventors | Henri Giffard |
| Inventor country | FR |
| Applicant person | Michael Henry |
| Applicant firm | |
| Applicant type | INDIV |
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| Original title | |
| English title | [Improvements to captive balloon system] |
| Tech fields | LTA, captive, suspension, gas, anchor, mooring, balloon, rubber, fabric, dynamometer, pulley |
| Filing date | 1867-10-28 |
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| Granted? | 1 |
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| Supplementary to patent | Patent GB-1867-466 |
| Related to aircraft? | 1 |
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| National tech categories | GB 4 |
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