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Description: | Edw. Massey LLL patentee LONDON 569
This instrument is designed to measure the distance covered by a ship. In this design, a brass rotor trails in the water and spins around as the boat moves along. This rotary motion is then passed through a set of linked brass rods to the register. There are four dials on the front of the register and one on the back giving a readout of the distance travelled in nautical miles and feet. This form of log was patented by Edward Massey (about 1768-1852), whose name is inscribed on the register, along with the trademark of three Ls in a triangle.
Original instruction label pasted in lid of box, now in sling file.
AUDIT - object needs to be marked with its NAV number. Three unnumbered parts. Label from box (now in object file) reads 'Patent March.24.1802.No.2601. June 13. 1836 No 7113'. | Publisher: | "http://collections.rmg.co.uk/" | Subjects: | John Lort Massey Stokes mechanical logs Edward | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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