Dragsaw sawing machine

Numéro d’image : 11960091
Dragsaw sawing machine
19th century illustration of a riding saw or dragsaw invented by William Giles of Chicago. The apparatus is about 8 feet long and one end is fixed to the trunk of the tree to be sawn. The operator sits at the other end on a saddle with his feet on 2 treadles. The force applied to the treadles and the hand lever combine with the dead weight of the operator to draw the saw backwards and forwards. Many such inventions were patented in the 19th century based on changing the rotary motion of a hand crank or belt pulley into the reciprocating action of a cross-cut saw. This is the wood frame version heavily advertised in 1879 farm publications. Giles also claimed it was suitable for cutting stone (obviously with an appropriate blade) and was capable of a very long stroke
Licence : Droits gérés
Crédit: Science Photo Library / Parker, David
Taille de l’image : 5904 px × 5887 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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