SEARCH
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Prev | Current Page 245 | Next

Babbage, Charles, 1792-1871

"On the Economy of Machinery and Manufactures"

(a) The operator with his left hand dips the pointed end of
the body of a pin into a tray of heads; having passed the point
through one of them, he carries it along to the other end with
the forefinger. He now takes the pin in the right hand, and
places the head in the cavity of the stake, and, lifting the die
with his foot, allows it to fall on the head. This blow tightens
the head on the shank, which is then turned round, and the head
receives three or four blows on different parts of its
circumference. The women and children who fix the heads are paid
at the rate of 1s. 6d. for every twenty thousand. A skilful
operator can with great exertion do twenty thousand per day, but
from ten to fifteen thousand is the usual quantity: children head
a much smaller number: varying, of course, with the degree of
their skill. About one per cent of the pins are spoiled in the
process; these are picked out afterwards by women, and are
reserved, along with the waste from other processes, for the
melting-pot. The die in which the heads are struck is varied in
form according to the fashion of the time; but the repeated blows
to which it is subject render it necessary that it should be
repaired after it has been used for about thirty pounds of pins.


Pages:
233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257