Varley Dry Accumulators
of Barking, maker of dry accumulators
c.1910 Oliver Pell Control developed the Varley dry accumulator (perhaps based on the patent of Frederick Henry Varley?)
1940 Patent application, by the company and Jonas Abraham Szper, a Polish citizen of the company's address, for improvements in electric storage batteries
1941 Leonard Fuller and Harold Dennis Lark patented improvement to electric storage batteries for Varley Dry Accumulators of Barking
and several other patents
1954 Supplied batteries for the Britannia aircraft[1]
1964 Acquired by General Electrical and Mechanical Systems[2]
1974 Ever Ready Co (Holdings) acquired Varley from General Electrical and Mechanical, an offshoot of Babcock and Wilcox[3]