Chainsaws, they have been used for everything from cutting down trees to cutting up body parts in movies. There is much more to the history and use than has been mentioned. An example is during the 1830's this unique instrument was written up in the Canadian Medical Association Journal by Dr. Wolf Seufert. The good doctor talks about an instrument called the osteotome. This was invented by German Bernard Heine. The osteotome was an early runner of the chain saw that was used as a surgical tool. There are many companies that claim to have invented the chain saw and the research of their claims puts them around the 1920's. We can clearly see that the osteotome's use in surgical settings pre-dates the early 1920's chainsaw.
Keep in mind that this surgical instrument was not like the gas or electric powered cutters on modern day. This was a hand cranked type of saw in which the blade was adjusted and angled by hand prior to cutting and during the procedure. As for other claims maybe it was the inventor named Muir who invented the saw for logging use. If this was the case we must keep in mind that the one still in use by loggers weighs enough that a crane must move it around. There was another saw used for logging called the Hamilton saw. That was invented around 1861. Again this saw was huge and hand cranked which required the man power of two people.
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So who is the father of the saw which we use today? Could it be Andreas Stihl? The patented was registered by Andreas around 1926 to 1929. This first saw was powered by gas and was one of the very first successful hand powered saw patents. These early saws with chains were written up in popular journals and newspapers of the time and are still in existence today. One such journal is the March 16th edition of Scientific American which showed a photo of the saw on its front cover. This one was said to be of German design and gas powered. The engine on this model was away from the saw blades which were connected with a drive shaft. This was around the year 1918.
Many saw inventors came and went during the time of its creation. Many added parts and made adjustments but over all there was little change to the way it worked. They always have an engine. Many of these are two cycles that run on gas or an electric motor. There is a clutch and sprocket of some type and a guide bar made from alloy steel. The length of this bar can be around sixteen to thirty six inches or longer. There is a slot in this bar that the blade rests on when not in use and this also helps to guide the blade when it runs. The blade which is made of chain is riveted together and has sharp teeth which aid in the cutting.
The modern saws need to be lubricated just like most of the two stroke engines on the market today. The good news is that the fuel does most of the work and that is why the gas is mixed with two stroke oil. You also use a chain oil to lube up the bar and chain. This allows the machine to operate smoothly. Because the chain moves at such a fast as the oil tends to fly off and this means that it will have to be lubed up again or damage will occur.
This is a simple problem to fix, all you have to do is to top off the saw when it is not in use. The reservoir for bar oil and gas will be there on the saw together. The next thing you should do is to keep your chain sharp if you want it to cut correctly. Cutting makes these chains become dull and blunt. Other things help the blade to become dull as well. The chain might dig up dirt or just get some sawdust, metal or stones caught up in them. All these things will mean that you will need to have your chain sharpened on a regular basis.
There are other forms of chainsaws available today that can be used to cut brick, natural stones and concrete. The chains on these have diamond grit deep within the chain. Some of these saws are powered by gas or hydraulically. The chains on these are lubricated with the water. The bottom line here is that the chainsaw has come a long way regardless of who invented it or why. The chainsaw of modern day is a blessing that was created before its time.
Black Friday Bare-Tool Milwaukee 2645-20 18-Volt M18 Jig Saw 2011 Deals
Nov 15, 2011 19:19:13
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Black Friday Bare-Tool Milwaukee 2645-20 18-Volt M18 Jig Saw Feature
- Tool free shoe bevel with positive stops allows for quick and accurate shoe adjustment
- Maximum 45-degree bevel in either direction with detents at 0, 15, 30, and 45-degrees
- 5-position orbital cutting offers versatility for application specific cutting
- Over-molded grip with variable speed trigger provides optimal control for cutting a variety of materials
- Non-marring shoe protects work surface from damage
Black Friday Bare-Tool Milwaukee 2645-20 18-Volt M18 Jig Saw Overview
The 2645 20 delivers accuracy, versatility, and ease of use. The 5 position orbital setting offers more cutting versatility than any other cordless jig saw on the market. This allows the user to select the type of cut or speed specific to their applications. For ease of use, the tool free shoe bevel allows for quick an accurate shoe adjustments, while the Quick Lok blade clamp (modelNo. 153) provides fast and easy blade change.
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