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Scientific American, Vol. 21, No. 16 (1869) (1869)
leaf 7
. Dr. Parker It is well known that hand rip saws are made with coarser says: , teeth at the heel than at the point, or so that fine teeth com- A piece of cast iron about six feet long, both with and mence and coarse teeth finish the cut. Fine teeth cut at the without side holes, was made, and a… … started it, and since that time several patents have been granted forimprovements. Itremainstobeseen whether the original patentees of the drive well can sustain their broad | you, they would increase their sales ?” claims in view of the facts above presented, tant change in the saw itsclf. © 1869…Internet Archive · Public domain (published before 1931). Free to use for anything.
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