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Three different international-standard two-hole punches. A hole punch, also known as hole puncher, or paper puncher, is an office tool that is used to create holes in sheets of paper, often for the purpose of collecting the sheets in a binder or folder (such collected sheets are called loose leaves).
Friedrich Soennecken (20 September 1848 – 2 July 1919) was an entrepreneur and inventor. He was the founder of Soennecken, a German office supplier. Soennecken was born in Iserlohn-Dröschede, Sauerland in 1848, the son of a blacksmith. On 27 May 1875 he founded the F. Soennecken Verlag, a commercial enterprise in Remscheid, Westphalia.
Die and punch shapes affect the force during the punching process. The punch force increases during the process as the entire thickness of the material is sheared at once. A beveled punch helps in the shearing of thicker materials by reducing the force at the beginning of the stroke. However, beveling a punch will distort the shape because of ...
OMR is now used as an input device for data entry. Two early forms of OMR are paper tape and punch cards which use actual holes punched into the medium instead of pencil filled circles on the medium. Paper tape was used as early as 1857 as an input device for telegraph. [10] Punch cards were created in 1890 and were used as input devices for ...
To make a print, the engraved plate is inked all over, then the ink is wiped off the surface, leaving ink only in the engraved lines. The plate is then put through a high-pressure printing press together with a sheet of paper (often moistened to soften it). The paper picks up the ink from the engraved lines, making a print.
Early composing sticks often had a fixed measure, as did many used in setting type for newspapers, which were fixed to the width of a standard column, when newspapers were still composed by hand. 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 ...
The counterpunch would be struck into the face of the punch. The outer form of the letter is then shaped using files. To test the punch, the punchcutter makes an imprint on a piece of paper after coating the punch with soot from an open flame. The soot left by the flame acts like ink to create an image on the paper (a smoke proof).
The technique of imprinting multiple copies of symbols or glyphs with a master type punch made of hard metal first developed around 3000 BC in ancient Sumer.These metal punch types can be seen as precursors of the letter punches adapted in later millennia to printing with movable metal type.
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