- Subject
- Electronic instruments
- Item type
- Object
- Makers
- Elliott Brothers
- Provenance
- Presented by the Marconi Corporation in 2003.
- Primary inscriptions
- 'ELLIOTT BROS / LONDON / PATENT / NO.4274'
- Object type
- Electronic instrument
- Dimensions
- Height: 257mm Width: 232mm Depth: 86mm Weight: 3.6kg
- Inventory No
- 12971
- Accession Number
- 2003-11
Description
Steam Engine Indicator, by Elliott Brothers. The instrument is made of metal and comes with a piston rod, small valve and a metal blade all housed in a wooden box with metal handle. The device records how the pressures in the cylinders of steam and internal-combustion engines change during the operating cycle. There is a cream instruction label attached to the interior of the lid.
12971.1 - Wooden box, with copper alloy handle and blue baize lining on supports in box.
12971.2 - Large metal piston rod, consisting of 2 columns and a piece of string with hook attached.
12971.3 - Small metal valve, with rectangular wooden handle attached.
12971.4 - Metal blade.
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