- Subject
- Electronic instruments
- Item type
- Object
- Makers
- Elliott Brothers
- Provenance
- Presented by the Marconi Corporation in 2003.
- Primary inscriptions
- 'DARKE'S / PATENT. / NO.1322' 'ELLIOTT BROS. / LONDON / NO.2592'
- Object type
- Electronic instrument
- Dimensions
- Height: 120mm Width: 178mm Depth: 93mm Weight: 2.5kg
- Inventory No
- 12970
- Accession Number
- 2003-11
Description
Steam Engine Indicator, by Elliott Brothers. The instrument is made of metal and comes in six parts, 2 coils, a large and a small valve, there is also a spanner and metal grid, housed in a wooden box with brass handle. The device records how the pressures in the cylinders of steam and internal-combustion engines change during the operating cycle. Inside the lid is a green baize lined section, which lifts out to reveal a compartment - possibly for papers.
12970.1 - Wooden box, with brass handle and baize line section, which lifts out to reveal a compartment - possibly for papers.
12970.2 - Metal grid, aligned at an angle.
12970.3 - Small metal valve with wooden handle.
12970.4 - Large metal valve, with small wooden handle attached.
12970.5 - Small metal spanner.
12970.6 - 2 metal coils, tightly coiled to centre where the coil opens out.
Related Items
More related items
Grid for Darke's Steam Engine Indicator and Box, by Elliott Brothers, London, ?Early 20th CenturyInventory Number 12970- Coils for Darke's Steam Engine Indicator and Box, by Elliott Brothers, London, ?Early 20th CenturyInventory Number 12970
- Valve for Darke's Steam Engine Indicator and Box, by Elliott Brothers, London, ?Early 20th CenturyInventory Number 12970
- Box for Darke's Steam Engine Indicator, by Elliott Brothers, London, ?Early 20th CenturyInventory Number 12970