Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,694 pages of information and 247,077 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
Ashtead, Surrey.
The Allen Accumulator.
The positive and negative plate in these accumulators consists of a lead frame, which holds a plate of solid active material without subdividing it in anyway. The active medium is therefore in one unbroken mass, and is claimed to be free from local action caused by lead bars subdividing it.
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MW1.43