Got this in the mail today. Another B-Day gift from my honey. It's a reproduction of the original patent. I'm gonna put it out in the shop with my saw stuff. Thought I'd scan it and put it here in case anyone else wanted to use it.
There were earlier examples designed as bone saws, but this was the first for felling & bucking trees. The huge redwoods of the north coast of California were the inspiration/motivation. Chainsaw - Wikipedia The tooth design in the patent application is the same as the teeth of a traditional crosscut saw.
There was a few of these here in the Northeast back in the 1920's and 1930's, but they were set up mostly for bucking. The reason was the pulp industry that required 4 foot wood. These machines really saved a lot of back-breaking work. Back then there was 135 paper mills in New England alone so the demand for 4 foot wood was quite strong. I have a book written in 1965 and the author made a reference to a paper mill that was thinking about buying wood on a tree length basis and paying by the cord! Now of course it is against the law NOT to pay by weight, at least here in the state of Maine. Thanks for the post though. I am in the design stages of making a mini-homemade slasher. I love my log trailer, but realized one major use of my time is marking and then cutting the pulpwood to 8 foot lengths. With a slasher I could just swing the tree over to a butt plate, then run a slasher through it to get the proper length logs. It jams the paper mills up if the length is over 8 feet so it is critical to get the proper length...but quickly.