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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).
A paper tape, constructed from punched cards, in use in a Jacquard loom. The large holes on each edge are sprocket holes, used to pull the paper tape through the loom. Perforated paper tapes were first used by Basile Bouchon in 1725 to control looms. However, the paper tapes were expensive to create, fragile, and difficult to repair.
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.
The heart of the 024 and 026 keypunches was a set of twelve precision punches, one per card row, each with an actuator of relatively high power. Punch cards were stepped across the punch one column at a time, and the appropriate punches were activated to create the holes, resulting in a distinctive "chunk, chunk" sound as columns were punched.
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In 1961, 19-year-old Robert Allen Zimmerman dropped out of college in his native Minnesota, made a pilgrimage to New York City to meet his folk music idol Woody Guthrie, and decided to become, in ...
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1747 Olentangy River Rd, Columbus, OH · Directions · (614) 299-9425
zoro.com has been visited by 100K+ users in the past month
Average: 4.7 out of 5 - 83,309 reviews - Power Reviews