- 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: 212mm
- 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 final specification of patent no.47 (1903) ('Improvements in the construction of current transformers used in conjunction with instruments measuring electric energy in alternate current circuits'), 1903. Vertical format. Nearly identical to earlier version; thinner paper.
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