Humptulips
ArboristSite Guru
My Father had an old Chase mill. I edged many a bundle growing up.
Still some of the upright shingle machines working but mostly they are cutting them on band saws. I guess it saves wood.
Always looked scary watching shingle sawyers reaching for the rough shingles coming off the head saw while working the clipper saw and grading shingles. Pretty much a blind reach and the shingles would be laying up against the saw blade.