Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 173,094 pages of information and 249,768 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.

Andrew Smith Harkness

From Graces Guide

of Station Road, Borehamwood

Perlux screens

1952 Acquired by Rank Organisation, later becoming part of Rank Precision Industries, and then Rank Audio Visual Division.

2025 The company Andrew Harkness Ltd is still trading and making screens. 'In 1929, founder Andrew Harkness, a master draper by profession first entered into the screen-manufacturing business with his 18-year-old son Tom. The business operating out of the then bustling UK film studio lots of Borehamwood in the UK rapidly grew and became hugely successful manufacturing woven screens and then washable woven screens. During the early 1940s, Tom Harkness identified plastic (PVC). A new material which seemed to possess all the properties required in an ideal screen, however this new material still needed to be joined. Harkness spent significant time developing a revolutionary method of welding the plastic together called the Tearseal method which was later patented. Where other manufacturers had failed to produce invisible seams, the Harkness Tearseal method produced a flat seam...'See [Harkness Screens]

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