Difference between revisions of "Hubert H. Grenfell"
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He invented a gun sight and range indicator. His system was applicable to all guns, and | He invented a gun sight and range indicator. His system was applicable to all guns, and | ||
offered advantages over the methods of sighting previously used. Grenfell applied a telescope to the head of the day sight, the bar of which, instead of being straight, was formed in a curve so as to enable all the increment of elevation for the different ranges to be made of equal length on the bar. Grenfell's sight presented objects right-way up rather than inverted. | offered advantages over the methods of sighting previously used. Grenfell applied a telescope to the head of the day sight, the bar of which, instead of being straight, was formed in a curve so as to enable all the increment of elevation for the different ranges to be made of equal length on the bar. Grenfell's sight presented objects right-way up rather than inverted.<ref>The Engineer 1891/07/10</ref> | ||
1891 Established [[Grenfell and Accles]] | 1891 Established [[Grenfell and Accles]] | ||
Latest revision as of 12:11, 26 November 2021
Captain Hubert H. Grenfell ( -1906)
He invented a gun sight and range indicator. His system was applicable to all guns, and offered advantages over the methods of sighting previously used. Grenfell applied a telescope to the head of the day sight, the bar of which, instead of being straight, was formed in a curve so as to enable all the increment of elevation for the different ranges to be made of equal length on the bar. Grenfell's sight presented objects right-way up rather than inverted.[1]
1891 Established Grenfell and Accles
1906 Obituary [2]
See Also
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Sources of Information
- ↑ The Engineer 1891/07/10
- ↑ Engineering 1906 Jul-Dec: Index: General Index