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Drawing of round head rivets, 1898 A typical technical drawing of a universal head solid rivet Riveters work on the Liberty ship SS John W. Brown (December 2014).. Rivet holes have been found in Egyptian spearheads dating back to the Naqada culture of between 4400 and 3000 B.C. Archeologists have also uncovered many Bronze Age swords and daggers with rivet holes where the handles would have been.
The term rivet derives from the "overlapping plates sliding on rivets" characteristic of this type of armour. [3] Almain is an Early Modern English term for "German" (still used in some poetic and/or archaic senses), from the French alemanique, from the mediaeval Latin alemanicus, from Alemanni, an early Germanic tribe. [4]
A rivet gun, also known as a rivet hammer or a pneumatic hammer, [1] is a type of tool used to drive rivets. The rivet gun is used on rivet's factory head (the head present before riveting takes place), and a bucking bar is used to support the tail of the rivet. The energy from the hammer in the rivet gun drives the work and the rivet against ...
A rivet nut, also known as a blind rivet nut, or rivnut, [1] is a one-piece internally threaded and counterbored tubular rivet that can be anchored entirely from one side. It is a kind of threaded insert. There are two types: one is designed to form a bulge on the back side of the panel as a screw is tightened in its threads.
On a drawing, this rivet would be called out as a "BJ6" which is a fastener encoding defined by NAS523.-- Jebix ( talk ) 01:20, 17 November 2008 (UTC) [ reply ] I have seen in some older patents that "rivet" seems to be used as a term to describe the bending-down of metal by hammering, more than a particular type of fastener.
A back countersink, also known as an inserted countersink, is a two piece countersink used on tough to reach areas. One component is a rod that is inserted into the existing hole in the workpieces; the other component is the cutter, which is attached to the rod, or extends out of it, after it is in position. [ 3 ]
Some say the holes allow your feet to breathe easier. Walking and other activities may cause your feet to sweat and swell, but these holes increase ventilation.
A large block of ice is held in a tray or compartment near the top of the box. Cold air circulates down and around storage compartments in the lower section. Some finer models have spigots for draining ice water from a catch pan or holding tank. In cheaper models, a drip pan is placed under the box and has to be emptied at least daily.