An error occurred: no data to parse
Sounding Machine - National Maritime Museum
Astronomical and navigational instruments, Depth sounding, Recent acquisitions

The Collection

Your selection

Title

Actions

Buy this image Add this to a collection
Tags
Share or embed this object   
 

Sounding Machine

NAV0673
Astronomical and navigational instruments

Object connections:

Collection Astronomical and navigational instruments, Depth sounding, Recent acquisitions
Gallery locationNot on display
Peoplemaker: Massey, Edward

Object details:

Object ID NAV0673
Description Sounding machines are used to determine the depth of water below a ship. This early 19th-century model is made of brass. It has a rotor which drives a pair of counters (one on each face) as it is dropped through the water on a rope. The device automatically locks when it touches the sea bed and can be then pulled to the surface and the final measurement recorded. The counter on the front is marked ‘0-10’, the one on the back ‘0-150’ (fathoms). This sounding machine was patented by Edward Massey (about 1768-1852), whose name is inscribed on the machine, along with the trademark of three Ls in a triangle.
Date made circa 1830

Place made London, England
Credit National Maritime Museum, Greenwich, London
Materials brass
Measurements Overall: 87 mm x 185 mm x 215 mm
Parts
  • Sounding Machine (NAV0673)
    Help us

    Do you know more about this?

    Share your knowledge