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The origins of the hole punch date back to Germany; Friedrich Soennecken filed his patent on 14 November 1886, for his Papierlocher für Sammelmappen, a multiple-hole punch and office supply product. [1] [2] A Google Doodle was used on 14 November 2017 to celebrate the 131st anniversary of the hole punch. [3]
To bind a document, the user first punches holes in the paper with a specialized hole punch. Pages must be punched a few at a time with most of these machines. If hard covers are desired, they must be punched as well. In bulk applications, a paper drilling machine may be used. Then the user chooses a spine size that will match the document.
Although a 2:1 pitch hole pattern is most commonly used for binding larger documents, it can also be used for smaller books. It is most commonly found in sizes from 16 mm (5 ⁄ 8 in) to 32 mm (1 + 1 ⁄ 4 in). However, a couple of manufacturers make special small sizes, with diameters down to 6.4 mm (1 ⁄ 4 in). Renz GmbH own the registered ...
Usually, the punch and die are close to the same dimensions, creating a sheared edge when they meet. A punch that is significantly smaller than the die can be used to produce an extruded hole where the punch displaces the punched material to the sides, forming a tube perpendicular to the punched sheet. [2] [3]
A standard 8 + 1 ⁄ 2 by 11 inches (220 mm × 280 mm) sheet of paper has three holes with spacing of 4 + 1 ⁄ 4 inches (110 mm). There is a variant for half-letter size pages (8 + 1 ⁄ 2 by 5 + 1 ⁄ 2 inches or 220 mm × 140 mm), whose three rings are 2 + 3 ⁄ 4 inches (70 mm) apart. "Ledger" size binders hold 11-by-17-inch (28 by 43 cm ...
Highest listing price on eBay: $750 Hazel Atlas Blue Royal Lace stands out among Depression glass patterns, prized for its intricate design and vibrant cobalt blue hue. Produced between 1934 and ...