Hand Tools

Subject:
Re: Print from 1917 *PIC*

Mark Hennebury
Title Modern Shop Practice V1
Author Howard Monroe Raymond
Publisher American Technical Society
Year 1916
Copyright 1916, American Technical Society

The cap-iron f, which is not sharp, is not, as is often supposed, used for the purpose of strengthening or stiffening the cutting iron, but as a chip-break to prevent the cutting edge of the plane-iron from chipping, tearing, and breaking the grain of the wood below the surface when the grain turns and twists, or when it is knotty and crooked. In such cases the tendency of the plane-iron is to split and tear out the fibres of the wood in front of the cutting edge. To avoid this, the cap-iron is screwed on with its dull edge quite close to the cutting edge, so as to bend and break off the fibres or the shavings before the split gets fairly started below the surface.

The cutting edge of the plane-iron is said to have lead in proportion to the distance it is placed in advance of the dull edge of the cap-iron. The depth of the splits, or the roughness of the cross-grained surface, will be just equal to the lead of the cutting edge. For soft, straight-grained wood, the lead may be 1/32 inch or even more, but this must be reduced in proportion as the wood is curly, cross-grained, or knotty.

Messages In This Thread

Planes; knife geometry specifications *LINK*
Re: Planes; knife geometry specifications
Re: Planes; knife geometry specifications *PIC*
Re: Planes; knife geometry specifications
Re: Planes; knife geometry specifications
Re: Strawmen
Re: Strawmen
Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: All screwed up?
Re: All screwed up?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Re: Who are the teachers?
Skepticism *PIC*
Re: Skepticism
Re: Skepticism
Re: Skepticism
Re: Who are the teachers?
Re: Who are the teachers?
Re: Strawmen
Print from 1993 *LINK* *PIC*
Re: Print from 2010 *PIC*
Re: Print from 1905 *LINK* *PIC*
Re: Print from 1950 *LINK* *PIC*
Integral Chipbreakers in handplanes *PIC*
Re: Integral Chipbreakers in machines *PIC*
Re: Integral Chipbreakers in machines *PIC*
Re: Integral Chipbreakers in handplanes
Re: Print from 1917 *PIC*
Re: Print from 1905
Re: Print from 1905
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Re: Print from 1993
Breadth of forum participation *NM* *LINK*
Re: Breadth of forum participation
Re: Breadth of forum participation
Stanley...anyone care to comment? *PIC*
Occasionally, someone thinks they have...... *PIC*
I wish I had a wheel..
Re: Occasionally, someone thinks they have......
Re: Occasionally, someone thinks they have......
Re: Occasionally, someone thinks they have......
Re: Occasionally, someone thinks they have......
Beautiful workbench Roger! *NM*
Thanks Mark.....
Perfection exists to be pursued not caught. *NM*
Re: Stanley...anyone care to comment?
Re: Stanley...anyone care to comment?
Re: Stanley...anyone care to comment?
Re: Print from 1993
Re: Print from 1993
Thanks William. *NM*
Re: Strawmen
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