Photo Index - Tregoning Manufacturing Co. - Miter Jack and Coping Cutter

Machinery Photo Index

Manufactured/Badged by:
Tregoning Manufacturing Co.
Seattle, WA

Machine Specifications
Machine Class:	Wood Working Machinery
Machine Type:	Universal Trimmer
Machine Size:	Pedestal
Submitted By:	Reuben Deumling

Machine Specifications
Description/Model:	Miter Jack and Coping Cutter
Date of Manufacturer:	1920s
Serial Number:
Last Updated	6/12/2024 11:38:38 PM

Comments:

Combination sash and miter trimmer.
This little hundred year old machine was offered for sale locally twice within the last five weeks. The first time I missed out, but the buyer-who-was-quicker relisted it after cleaning it up. We agreed on a price and I picked it up last night. It is (with one small exception) in excellent condition. Seems to have never been abused or treated roughly. The sash trimmer knives are long gone and the machine as I received it doesn’t appear to have had those knives installed in a long time. Though the wooden tracks on that side suggest at one time it must have had a set of knives installed. It would be great fun to find or have a set of knives made for it to utilize both functions. A machine that accomplishes both of these functions is really quite brilliant, especially for the space-constrained sash maker.

No badging or other identification anywhere. We only know its provenance because Mike’s miter chopper has a Greenfield badge, and he found the 1928 patent for this machine, issued to William H Greenfield who worked for Tregoning Boat Co. and then Tregoning Manufacturing Co. (1920).

Photo 1:

Comments: sash trimmer side
Source: seller

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Photo 2:

Comments: more of the sash trimmer side
Source: seller

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Photo 3:

Comments: miter trimmer side
Source: seller

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Photo 4:

Comments: big scary sharp knives close up
Source: seller

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Photo 5:

Comments: hauling it home on my bike trailer at dusk
Source: my device

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Photo 6:

Comments: fence and knives, first seller and price for
Source: seller

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