For cutting wood Ī cordless 4 inch chainsaw commonly known as a "Ripper" As the name implies, this was used to cut bone. This instrument, the osteotome, had links of a chain carrying small cutting teeth with the edges set at an angle the chain was moved around a guiding blade by turning the handle of a sprocket wheel. For much of the 19th century, however, the chain saw was a useful surgical instrument.Ī precursor of the chain saw familiar today in the timber industry was another medical instrument developed around 1830 by German orthopaedist Bernhard Heine. Mechanized versions of the chain saw were developed but in the later 19th century, it was superseded in surgery by the Gigli twisted-wire saw. Symphysiotomy had too many complications for most obstetricians, but Jeffray's ideas became accepted, especially after the development of anesthetics.
Jeffray explained that the chain saw would allow a smaller wound and protect the adjacent neurovascular bundle. Park and Moreau described successful excision of diseased joints, particularly the knee and elbow. Moreau, with Observations by James Jeffray, M.D." In this communication, he translated Moreau's paper of 1803. In 1806, Jeffray published "Cases of the Excision of Carious Joints by H. Jeffray claimed to have conceived the idea of the chain saw independently about that time, but he was not able to have it produced until 1790.
It was illustrated in the second edition of Aitken's Principles of Midwifery, or Puerperal Medicine (1785) in the context of a pelviotomy. 1783–1785) by two Scottish doctors, John Aitken and James Jeffray, for symphysiotomy and excision of diseased bone, respectively. A "flexible saw", consisting of a fine serrated link chain held between two wooden handles, was pioneered in the late 18th century (c. The origin of chain saws in surgery is debated. Outboards,Edgers, Chainsaws, Trimmers etc.Ĭollectors Events (including) Swap Meets.Historical osteotome, a medical bone chainsaw
Questions On Chippers, Mulchers, Shredders & Stump GrindersĬhippers,Mulchers & Shreader Parts List & Repair Manuals
Questions On Turf Care Equipment & Accessories Questions on Chainsaws and Concrete Cuttersĭigging Equipment Parts List & Repair Manuals Questions on Greenfield Ride On Mower Frames Questions on Walk Behind Lawn Mower Frames Here the most popular chainsaw brands are Stihl, Husqvarna, and Poulan. Of the chainsaws I repair here the Echo line seems to be the gutless wonder. With McCulloch being it came down robbing the worst of the two to keep one working due to lack of part availability.Ī lot of the Craftsman chainsaws for years was were Poulans in Craftsman dress. The two McCulloch saws I had did last 20 yrs though I had to repair them several times. Here the original McCulloch has gone out of business. Still a little lighter weight wise than the Homelite C-52 that I have used. The weight of the 570 is a little much for me now if I was planning cutting firewood all day. I currently servicing a 390xp and a 570 Husqvarna saws which are the commercial versions. Both both Poulan and Husqvarna low end (Consumer grade) are good saws when use as intended. The low end are nothing but nothing but Poulan chainsaws in Husqvarna colors.