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Pins in Eighteen Operations: Adam Smith's Pin Factory
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11. ottobre 2026NO
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Pins in Eighteen Operations: Adam Smith's Pin Factory

In 1776 Adam Smith opened The Wealth of Nations with a pin workshop. One untrained worker, he wrote, "could scarce, perhaps, with his utmost industry, make one pin in a day, and certainly could not make twenty". Split into about eighteen distinct operations, ten men in a poorly equipped workshop made about twelve pounds of pins a day, at upwards of four thousand middling pins to the pound: over 48,000 pins, or 4,800 per worker. The operations are the blueprint: draw the wire, straighten, cut, point, grind the top, make and fix the head, whiten, and paper. Pins were long made of brass before steel took over, so here the wire is drawn from brass.
Intermedio
Workshop process

Istruzioni

1

Draw out the wire

Draw the brass down through the holes of the drawplate to pin thickness.

Materiali per questo passaggio:

Barra di ottoneBarra di ottone1 as required

Strumenti necessari:

Filiera d'acciaioFiliera d'acciaio
2

Straighten and cut

Straighten the wire, then cut it into pin lengths.

Strumenti necessari:

TronchesineTronchesine
3

Point

Point one end of each length.
4

Prepare the top and head it

Grind the other end to receive the head. Making the head takes two or three separate operations, and putting it on is a trade of its own.

Strumenti necessari:

Mola ad acquaMola ad acqua
5

Whiten and paper

Whiten the pins, then put them into the paper, which Smith calls "a trade by itself".

Materiali

1

Strumenti richiesti

3

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