Company Structure
Chart showing the relationship between the Bell Punch Company and its associated companies
Companies associated with Bell Punch Co.:
Bell Punch Co. Ltd. - Founded 1878, broken up 1986. The original company and the manufacturer of the mechanical and electronic calculators until 1966 when Sumlock Anita Electronics was split off.
Control Systems Ltd. - Founded 1927. Holding company for Bell Punch and its subsidiaries.
Owners of the entire issued
share capital of: Bell Punch Co. Ltd., Automaticket Ltd., Sumlock Ltd., Bell Punch Taximeters Ltd., Plus Computing Machines Inc. U.S.A., Isaac Warwick & Co. Ltd.[1]
London Computator Ltd. - Founded 1940. Subsidiary, marketing company of the Plus and Sumlock mechanical calculators. Renamed to Sumlock Limited in 1950.
Sumlock Limited - Founded 1950 by renaming London Computator Ltd.
Lamson Industries - Bought Control Systems and its subsidiaries in 1957.
Bell Punch Export Co. Ltd. - Export sales subsidiary of Bell Punch Co.
Sumlock Comptometer Ltd. - Founded 1961. Subsidiary, incorporating Comptometer Ltd. for distributing Bell Punch calculators.
Sumlock Anita Electronics - Founded 1966, split off from Bell Punch Co.. Subsidiary, manufacturer of the electronic and mechanical calculators.
Sumlock Anita Ltd. - Renamed from Sumlock Comptometer Ltd. in 1974. Separate financially from Sumlock Anita Electronics, but the main UK distributor of its calculators, as well as those of other manufacturers.
Facilities:
Control Systems Ltd.:
The Island, Uxbridge, Middlesex.
Bell Punch Co.:
Original site:
Tabernacle Street, London.
Headquarters and factory of Bell Punch Company, from 1922:
The Island, Uxbridge, Middlesex.
Bell Punch parts manufacture:
Uxbridge and at Herne Bay.
Research and development department for electronic calculators:
Uxbridge.
Administration Sumlock Anita Electronics and Sumlock Anita:
Rockingham Road, Uxbridge.
Factory opened in Portsmouth in 1954, due to need for increased capacity.[1]
Electronic and mechanical calculator factory, opened in 1966:
Sumlock Anita Electronics, Rodney Road, Portsmouth, Hampshire.
Plastic mouldings and piece part factory of Sumlock Anita Electronics, opened in about 1973/4:
East Kilbride, in Scotland.
London Computator Ltd. which later became Sumlock Limited and then Sumlock Comptometer Ltd.:
London premises at:
1 Abermarle Street, London, W1.
39 St. James St, London, SW1. - Head London office and Export Division.
102/106 Clerkenwell Road, London EC1. - This site housed the London service and sales branch
for both mechanical and electronic calculators, a training school for mechanical "Comptometer" operators, and the national training centre for the electronic calculators.
Apsley, Hertfordshire - From about 1970 became the national training centre and a central servicing facility for the later electronic calculators.
Bell Punch Export Co. Ltd.:
39 St. James's Street, London S.W.1.
U.S. distributor of Plus adding machines:
Plus Computing Machines Inc., 5 Beekman St., New York 38, N.Y.
A subsidiary of Bell Punch Co. Ltd.
Advertisements of 1957 give the following addresses of the marketing companies of the Sumlock and Plus calculators:
- Home Market: Sumlock Limited, 1 Abermarle Street, London, W.1.
- Export Market: Bell Punch Export Co. Ltd., 39 St. James's Street, London, S.W.1.
"Two companies of the Bell Punch Group".
References:
The Bell Punch Company & the Development of the Anita Calculator
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Text & photographs copyright © 2002 - 2023 Nigel Tout, except where noted otherwise.