Scissors can
be defined as hand implements that use two blades for cutting materials such as
paper, cloth, thread, food, hair, etc. The cutting action is created by the
shearing motion of the two blades moving against each other, such that the cut
moves horizontally while the fingers and thumb of the hand move vertically. How
did they originate and develop?
Ancient
scissors
The earliest
devices that can be loosely described as scissors were probably made in Egypt
in around 1500 BCE. These comprised a single piece of bronze metal formed into
a U shape, with the ends of the U sharpened into blades and the curve acting as
a spring so that the blades moved apart on release after each cut. However, it
would appear that the blades were not designed to cross, which would not have
made them particularly efficient.
Cross-bladed
scissors were invented in about 100 AD by the Romans, although the pattern
followed the Egyptian design, thus resembling the shears used by more recent
sheep-shearers and gardeners. The Romans used iron, which was less brittle than
bronze.
(Incidentally,
the difference between scissors and shears is basically one of size; scissors
with blades longer than 15cm are generally referred to as shears).
Modern
scissors
The invention
of modern scissors, using a central pivot to join the two blades, each of which
therefore comprises a lever, appears to have been made at some time before the 6th
century, when they were described, by Isidore of Seville, as tools used by
barbers. Indeed, there is some evidence that the Romans themselves made this
development.
We know that
during the Romanesque period, from around 1000 to 1300, scissor-makers were
held in high esteem, with craft guilds being formed. The development of other
trades and crafts, such as those of dressmaking and calligraphy, led to greater
demand for high-quality scissors that would produce clean cuts of cloth and
paper.
The name of
Leonardo da Vinci is sometimes associated with the invention of scissors
although by his day modern-style scissors were in fairly common use. His
contribution, as with several other technologies, may have been to make
improvements to what already existed, and thus increased their popularity, but
this is one invention for which he cannot take the credit!
A major
development came in 1761, when Robert Hinchliffe of Sheffield began to use cast
steel to make scissors, which could therefore be made to be highly durable and
efficient. He set himself up in London
as a manufacturer and purveyor of high-grade scissors.
There have
been many developments in the design of scissors in more recent years. For
example, there are now scissors for left-handed use, in which the blades are
reversed so that a left-hander can see the line of the cut as it is being made,
and the handles are moulded so as to be comfortable for use in the left hand.
There are specialist tools for surgeons, “pinking shears” for dressmakers and
tailors (to produce a zigzag cut in cloth that will not fray easily), safety
scissors for children, and even bolt-cutter shears for heavy-duty use, in which
the pivot point is placed as close to the blades as possible, to provide
greater leverage.
In an age of
technology when so many of our tools are power-driven and computer-controlled,
it is interesting to note that the humble scissors still have a role to play,
in a form that has changed little over thousands of years.
© John
Welford
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