1864. | Mining, Mineralogy, and Metallurgy. 495 
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ward motion in combination with a reciprocatory motion of partial 
rotation. It would be tedious to describe minutely those parts, 
through the agency of which these motions are obtained. To the 
mechanic those parts of the machine marked with numerals from 1 to 
11, will sufficiently explain themselves, and to those who are not 
familiar with the detail of gearing machinery, a brief description 
would not be intelligible. The end to be attained in a machine for 
puddling is to communicate to the “rabble,” or puddling tool, every 
motion which can be given to it by aman. Mr. Griffiths has certainly 
devised a machine which gives most of them. It will be understood 
that by the combined motions the puddling tool is made to travel up 
and down, and across the furnace. The main question is, whether 
this or any other machine can substitute those motions which are 
dependent upon the trained skill of an experienced puddler, and on 
which depends the production of good or bad iron. 
