Hubert H. Grenfell
From Graces Guide
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