Page:On the economy of machinery and manufactures - Babbage - 1846.djvu/219

NAME OF THE PROCESS.			Time for making Twelve Thousand Pins.	Cost of making Twelve Thousand Pins.	Workman usually earns per Day.	Expense of Tools and Materials.
			⁠Hours.⁠	⁠Pence.⁠	⁠Pence.⁠	⁠Pence.⁠
⁠1.⁠		Wire	. . .	. . .	. . .	24.75
2.		Straightening and Cutting⁠	⁠1.2	.5⁠	4.5	. . .
	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \\\ \\\ \ \end{matrix}}\right.}$	Coarse Pointing	⁠1.2	.625	10.0⁠	. . .
		Turning Wheel[1]	⁠1.2	.875	7.0	. . .
3.		Fine Pointing	⁠.8	.5⁠	⁠9.375	. . .
		Turning Wheel	⁠1.2	.5⁠	⁠4.75	. . .
		Cutting off pointed Ends	⁠.6	.375	⁠7.5	. . .
	$\scriptstyle {\left\{{\begin{matrix}\ \\\\\ \ \end{matrix}}\right.}$	Turning Spiral	⁠.5	.125	⁠3.0	. . .
4.		Cutting off Heads	⁠.8	.375	⁠5.625	. . .
		Fuel to anneal ditto	. . .	. . .	. . .	⁠.125
5.		Heading	12.0	.333	⁠4.25	. . .
6.	$\scriptstyle {\left\{{\begin{matrix}\ \\\ \end{matrix}}\right.}$	Tartar for Cleaning	. . .	. . .	. . .	⁠.5
		Tartar for Whitening	. . .	. . .	. . .	⁠.5
7.		Papering	⁠4.8	.5⁠	⁠2.0	. . .
		Paper	. . .	. . .	. . .	1.0
		Wear of Tools	. . .	. . .	. . .	2.0
			24.3	4.708

(238.) It appears from the analysis we have given of the art of pin-making, that it occupies rather more than seven hours and a half of time, for ten different individuals working in succession on the same material, to convert it into a pound of pins; and that the

1. The great expense of turning the wheel appears to have arisen from the person so occupied being unemployed during half his time, whilst the pointer went to another manufactory.