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