WE Gibbs raker gauge.

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WE Gibbs raker gauge.

Post by Sawman » November 14th, 2019, 11:27 am

W-E-Gibbs-Raker-Gauge-Saw-Filing-Sharpening.jpg (14.76 KiB) Viewed 1399 times
Hi can anybody tell me why this raker gauge has 3 pins?A bit puzzled as to why. Many thanks.
W-E-Gibbs-Raker-Gauge-Saw-Filing-Sharpening-_1.jpg (11.07 KiB) Viewed 1399 times

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Re: WE Gibbs raker gauge.

Post by Jim_Thode » November 15th, 2019, 9:19 am

This gauge with three pins is used to set a lead (one raker tip higher then the other) on the rakers. The right and left pin can be used to set the rakers on both ends of the saw with the same tool and without reversing the saw. At least that is what the patent description says.

https://patentimages.storage.googleapis ... ZMO0HXnS1g

It was common practice to set the lead so that raker tips closer to each end of the saw were longer. On a large log this would tend to pull cuttings better from the center of the log toward the ends of the saw and out of the kerf.