Thorp Diffraction Gratings

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Jeremy Shears

Very interesting, David. What do you intend to do with the gratings?

Thomas Thorp was a BAA member, joining in 1892, and a leading light in the North-Western Branch, in Manchester, where he served as Vice President. A brief JBAA obituary appears in JBAA, vol 24 (10), page 503, October 1914:

We regret to record the death of Mr. T. Thorp which occurred on 13th June last at his home, Whitefield, near Manchester. He was educated at the Manchester Grammar School, and resided in Manchester all his life. He devoted much of his time and attention to the improvement of astronomical instruments. His replica gratings, invented several years ago, brought him into prominence as a pioneer in this department of instrumental mechanism. Many of our members have reason to be grateful to Mr. Thorp for supplying them with prism gratings, applicable to binoculars, which have proved so serviceable in the observation of total solar eclipses. Ho joined this Association in 1892, became a member of the Manchester Literary and Philosophical Society in 1896, and was elected a Fellow of the Royal Astronomical Society in 1902.

All the best,