1890 Patent No. 16,617 duplex & muliplex turning lathes, Aldigier, Paris

Patent No. 16,617 A.D.1890 Improvements in Duplex and Multiplex Turning Lathes

""I, James Yate Johnson of 47 Lincolns Inn Fields in the County of Middlesex Gentleman, do hereby declare the nature of this invention which has been communicated to me from abroad by Jean Baptiste Aldigier and Jean Etienne Aldigier of Paris in the Republic of France, Screw Makers, to be as follows: This invention relates to duplex and multiplex lathes that is to say lathes which are capable of turning tow or more articles of the same form simultaneously the work being rotated on different centres and the operation not requiring any long time than would be required for making one article in an ordinary single acting lathe...""

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binding="disbound

non-fiction subject="engineering & technology

language="english

year printed=1890

original/facsimile="original