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The Cyclostyle duplicating process is a form of stencil copying. A stencil is cut on wax or glazed paper by using a pen-like object with a small rowel or spur-wheel on its tip. A large number of small short lines are cut out in the glazed paper, removing the glaze with the spur-wheel, then ink is applied.
Often, the stencil material covering the interiors of closed letterforms (e.g. a, b, d, e, g, etc.) would fall away during continued printing, causing ink-filled letters in the copies. The stencil would gradually stretch, starting near the top where the mechanical forces were greatest, causing a characteristic "mid-line sag" in the textual ...
Using letter copying presses, copies could be made up to twenty-four hours after a letter was written, though copies made within a few hours were best. A copying clerk would begin by counting the number of master letters to be written during the next few hours and by preparing the copying book. Suppose the clerk wanted to copy 20 one-page letters.
The stencil-copy method meant that only one copy had to be read, as all copies were mechanically identical. Gestetner had therefore revolutionised the office copying process. Gestetner 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 compositor takes the pieces of type from the boxes (compartments) of the type case and places them in the composing stick, working from left to right and placing the letters upside-down with the nick to the top. Early composing sticks were made of wood, but later iron, brass, steel, aluminium, pewter and other metals were used.
Stencils have been used in the military across most nations for many years and continue to be used today. They are used to mark up equipment, vehicles, rations, signposts, helmets, etc. One use of military stencils was the application of playing card designs to USA Airborne helmets during World War Two as a method to identify regimental units.
The stencil life is defined as a time period in which there will be no significant change in the solder paste material characteristics. A solder paste with a longer stencil life will be more robust in the printing process. Actual stencil life for a paste should be determined from the manufacturers' specifications and on-site verification.
Wood type in close-up. In letterpress printing, wood type is movable type made out of wood.First used in China for printing body text, wood type became popular during the nineteenth century for making large display typefaces for printing posters, because it was lighter and cheaper than large sizes of metal type.