Have you ever seen or used a chainsaw previously? This is a mechanical saw, using the power of electricity, compressed air or hydraulic to operate. The modern chainsaws use the power of a two-stroke engine to run. This device has many uses including, briefly the following:
• Cutting down the trees
• Tree pruning
• Tree bucking
• Cutting branches and
• Cutting firewood, among others
The chainsaw tool has existed for years. It has a long history in which the tool boasts amazing changes in style, features and even the functioning mechanism. Even so, it is hard to tell exactly when the first tool came up. This issue is contentious. Some people argue that the first chain saw emerged at around 1830. To support their fact, they quote Bernard Heine (German orthopaedist) as the man behind this early tool's innovation.
They continue to describe the tool (osteotome), saying that it had some chain links supporting tiny cutting teeth, set at a given angle. During the bone cutting process, the chain could spin around a channeling blade. This would in turn, move the sprocket's wheel handle. The other group of people believes that the chain saw hand tool emerged for the first time in 1920's. They go on to call this tool the true chain saw mainly used in forestry work.
The men behind the 1926 and the 1927 inventions were Joseph Buford Cox and Adreas Stilhl respectively. Stilhl specifically made an electro chain saw in 1926. Another inventor, Emil Lerp, the founding father of Dolmar Company, in 1927, came up with the first ever tool to use gasoline or petrol, as the main power source. Dolmar Company even went a step further to produce the new chain saw in masses. Thus, one could say that only the petrol or gasoline driven chainsaw tool invention emerged in 1920's. These tools:
• Made tree felling process at large, easier than before
• Were heavy or bulky hence, not very portable
• Could break easily
• Could consume huge amounts of energy
• Featured two-men operation
Because of these difficulties, new inventors had to eliminate the problem of bulkiness in particular. They sought to create a portable chain saw tool for one man. This achievement materialized in 1950, even though the tool was rather bulky. Nine years later, another invention for a tool weighing roughly, twelve kilograms, came up. Compared to the modern chain saws, this equipment was still heavy. On average, the modern tools for smaller tasks have an approximate weight of four to five kilograms.
The commercial use modern chain saws weigh about seven and nine kilograms. Overall, the shoppers in those days enjoyed the new one-man tool. The two 1950' one-man chain saws were efficient and reliable for forest tasks. Even though, the tools did not exactly impress some critics. This did not stop the alteration of this useful tool in the sixties, when the antivibration system released. In 1972, another sharp brain invented the chain brake, improved and replaced in 1982, by the quick stop, an automatic chain brake. By 1989, someone had released the catalyser, and two years later, the chainsaws featured an automatic start.
