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Babbage, Charles, 1792-1871

"On the Economy of Machinery and Manufactures"

With his right hand he closes the shears; and the two
turns of the spiral being cut off, drop into a basin; the
position of the forefinger preventing the heads from flying about
when cut off. The workmen who cut the heads are usually paid at
the rate of 2 1/2d. to 3d. per pound for large heads, but a
higher price is given for the smaller heading. Out of this they
pay the boy who spins the spiral; he receives from 4d. to 6d. a
day. A good workman can cut from six to about thirty pounds of
heading per day, according to its size.
232. 5. Heading. The process of fixing the head on the body
of the pin is usually executed by women and children. Each
operator sits before a small steel stake, having a cavity, into
which one half of the intended head will fit; immediately above
is a steel die, having a corresponding cavity for the other half
of the head: this latter die can be raised by a pedal moved by
the foot. The weight of the hammer is from seven to ten pounds,
and it falls through a very small space, perhaps from one to two
inches. The cavities in the centre of these dies are connected
with the edge of a small groove, to admit of the body of the pin,
which is thus prevented from being flattened by the blow of the
die.


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