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Date: |
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Description: | 10,11,12,13,14,15,16,17
18,19, 20, 21, 22, 23, 24, 25
2,3,4,5,6,7,8,9
Edwin Craven, Maker, Hull.
J.RABONE & SONS BIRMINGHAM WARRANTED CORRECTED
No 2. Plate Angles of Degrees. Diams from 10 ft to 17ft
No 86.
No. 1. Plate. Angles of Degrees. Daims. from 2 ft to 9ft
No. 3 Plate Angles of Degrees. Diams from 18ft to 25 ft
Propeller pitchometer in a box with three metal wedges and three angle of degree plates. Heavy wooden body with level which has three interchangeable brass plates for laying out different pitch propeller blades. No 1 Plate has a scale marked in increments of 5 degrees from 5 upto 60. No 2 plate has a scale marked in increments of 5 degrees from 5 upto 45. No 3 plate has a scale marked in increments of 5 degrees from 5 upto 35. On the back of each plate are scales showing the pitch in feet.
A pitchometer is a tool engineers use to measure the pitch, or angle, of propellers.
AUDIT - six unnumbered parts.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | propeller pitchometer gears | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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