David Gestetner - The Device

The Device

The stencil method used a thin sheet of paper coated with wax (originally kite paper was used), which was written upon with a special stylus that left a broken line through the stencil — breaking the paper and removing the wax covering. Ink was forced through the stencil — originally by an ink roller — and it left its impression on a white sheet of paper below. This was repeated again and again until sufficient copies were produced.

Until this time, any "short copy runs" which were needed for the conduct of a business (e.g., for the production of 10–50 copies of contracts, agreements, or letters) had to be copied by hand. (If more were needed, the document would have to go to the printers.) After the run had been copied, business partners had to read each one to ensure that they were all exactly the same, and that human error or tiredness had not introduced an error into one copy. The process was time consuming and frustrating for all. The stencil copy method meant that only one copy had to be read, as all copies were mechanically identical.

David Gestetner eventually moved to London, England and in 1881 established the Gestetner Cyclograph Company to produce stencils, styli, ink rollers, etc. He guarded his invention through patents. He also invented other notable devices such as the nail-clipper and the ball-point pen. The Gestetner works opened in 1906 at Tottenham Hale, north London, and employed several thousand people until the 1970s. His invention became an overnight international success, and he soon established an international chain of branches that sold and serviced his products. During the ensuing years he further developed his invention, with the stencil eventually being placed on a screen wrapped around a pair of revolving drums, onto which ink was placed. The drums were revolved and ink, spread evenly across the surface of the screen by a pair of cloth-covered rollers, was forced through the cuts made in the stencil and transferred onto a sheet of paper which was fed through the duplicator and pressed by pressure rollers against the lower drum. Each complete rotation of the screen fed and printed one sheet. After the first typewriter was invented, a stencil was created which could be typed on, thus creating copies similar to printed newspapers and books, instead of handwritten material.