- Subject
- Electronic instruments
- Makers
- Elliott Brothers
- Provenance
- Presented by the Marconi Corporation in 2003. Part of the Elliott Archive.
- Primary inscriptions
- Intrinsically marked: 'Sketch E78'. Intrinsically captioned: 'Inprovements [sic] in the construction of current transformers used in conjunction with instruments measuring the energy in alternate current electric circuits.'.
- Physical material
- Paper
- Object type
- Electronic instrument
- Dimensions
- Height: 340mm Width: 215mm
- Inventory No
- 11980
- Accession Number
- 2003-11
Description
In Elliott Archive 2/36 part, volume of documents relating to patents. Blueprint for a current transformer invented by A. C. Heap, prepared to accompany the application and provisional specification of patent no.47 (1903). Vertical format. Nearly identical to final version; thicker paper.
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