Patent GB-1867-1291

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"H. W. Grylls" is interpreted as the Henry William Grylls of Patent GB-1868-3677; J. W. Brooks could be the Jesse William Brooks of Patent US-1903-741762 but the timing and location (Texas) of the latter applicant makes this identification questionable.


  • Abridgment of patent specifications 1867–76 (1903), Class 4, pp. 2–3: 1291. Grylls, H. W., Neville, H., Brooks, J. W., and Holt, J. May 3. [Provisional protection only.] Motors. - Relates to apparatus for obtaining motive power for the propulsion of balloons and other aerial machines, and for general purposes. A series of springs, each of which may be wound separately, are mounted on a central shaft in drums or cylinders carrying toothed wheels from which motion is transmitted to a pulley shaft for driving the vehicle or machinery. To enable the motion to be reversed, the central shaft is mounted on hinged standards, so that the toothed wheels on the spring drums can be brought into engagement with another set of pinions when reversal is required.

Year filed 1867
Year granted
Office GB
Patent number 1291
Inventors Henry William Grylls, H. Neville, J. W. Brooks, J. Holt
Inventor country
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title
English title [Propulsion system using springs and wheels]
Tech fields propulsion, springs
Filing date 1867-05-03
Full specification filed date
Application number
Grant date
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
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Assigned to
National tech categories GB 4
Family year 1867
First filing?
Cites these patents
Citations from after 1930
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