Best Nail Designs Biography
(Source google.com)
Nails date back at least to
Ancient Egypt bronze nails found in Egypt have been dated 3400 BC. The Bible
provides a number of references to nails, including the story in Judges of the
woman who drives a nail into the temple
of a Canaanite commander while he is asleep, the provision of iron for
nails by King David for Solomon's Temple ,
and the crucifixion of Christ. The Romans made extensive use of nails,
evidenced for example by the seven tons of nails left behind by the Roman army
at the fortress of Inchtuthil in Perthshire in the United Kingdom . The term “penny”,
as it refers to nails, probably originated in medieval England to
describe the price of 100 nails. Nails themselves were sufficiently valuable
and standardized to be used as an informal medium of exchange. The letter “d”,
which stands for penny, is derived from the Latin name of the Roman coin, the
denarius. Until around 1800, nails were made by hand, and were provided by an
artisan known as a nailer or nailor. There were workmen calledslitters who cut
up iron bars to a suitable size for nailers to work on. From the late 16th
century, manual slitters disappeared with the rise of the slitting mill, which
cut bars of iron into rods with an even cross-section, saving much manual
effort. At the time of the American Revolution, England was the largest
manufacturer of nails in the world. Nails were expensive and difficult to
obtain in the American colonies, so that abandoned houses were sometimes
deliberately burned down to allow recovery of used nails from the ashes.
Families often had small nail manufacturing setups in their homes; during bad
weather and at night, the entire family might work at making nails for their
own use and for barter. Thomas Jefferson wrote in a letter, “In our private
pursuits it is a great advantage that every honest employment is deemed
honorable. I am myself a nail maker.” The growth of the trade in the American
colonies was theoretically held back by the prohibition of new slitting mills
in America
by the Iron Act, though there is no evidence that the Act was actually
enforced.
The production of wrought iron
nails continued well into the 19th century, but ultimately was reduced to nails
for purposes for which the softer cut nails were unsuitable, including
horseshoe nails. From the very beginning, nails were handmade; the nail-making
process was slow; and nails were relatively few and expensive. This naturally
produced a desire to create machines to speed up and automate the nail-making
process. The slitting mill, introduced to England in 1590, had simplified the
production of nail rods, but the real first efforts to mechanise the
nail-making process itself occurred between 1790 and 1820, initially in the
United States and England, when various machines were invented to automate and
speed up the process of making nails from bars of wrought iron. These nails
were known as cut nails or square nails because of their roughlyrectangular
cross section. Cut nails were one of the important factors in the increase in
balloon framing beginning in the 1830s and thus the decline of timber framing
with wooden joints. Though still used for historical renovations, and for
heavy-duty applications, such as attaching boards to masonry walls, cut nails
are much less common today than wire nails.
In woodworking and construction,
a nail is a pin-shaped object of metal (or wood, called atreenail or
"trunnel") which is used as a fastener, as a peg to hang something,
or sometimes as a decoration. Generally nails have a sharp point on one end and
a flattened head on the other, but headless nails are available. Nails are made
in a great variety of forms for specialized purposes. The most common is a wire
nail. Other types of nails include pins, tacks, brads, and spikes. Nails are
typically driven into the workpiece by a hammer, a pneumatic nail gun, or a
smallexplosive charge or primer. A nail holds materials together by friction in
the axial direction and shear strength laterally. The point of the nail is also
sometimes bent over or clinchedafter driving to prevent pulling out. To make a
wrought-iron nail, iron ore was heated with carbon (to create wrought iron) and
shaped into square rods. To make a nail, a blacksmith would heat the rod in a
forge and taper the end of the bar while keeping the cross section square.
Next, the smith would cut off the taper, and insert it into a nail heading tool
with a square hole. The top of the taper would be hammered downward (upset) to
create a head.
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