Chainsaw

Chainsaw

Bernhard Heine's Osteotome

Meßkluppen im Waldmuseum Zwiesel

Electric-chainsaw

Ripper Chainsaw

Chainsaw is a portable, mechanical saw powered by electricity, gasoline, or a battery. It is a versatile tool used in various activities such as tree felling, limbing, bucking, pruning, cutting firebreaks in wildland fire suppression, and harvesting of firewood. Chainsaws have also found their way into the sculpture and ice sculpture fields for artistic purposes.

History

The origins of the chainsaw are debated, but it is generally agreed that the first chainsaw-like tool was created in the 1830s by German orthopaedist Bernard Heine. This device, known as the osteotome, had links 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. As for the modern chainsaw, its development began in the late 19th century and was refined throughout the 20th century by various inventors and engineers around the world.

Design and Function

A chainsaw consists of several main parts: the engine, the drive mechanism (usually a clutch), a guide bar, and the cutting chain. The engine can be either a two-stroke gasoline engine or an electric motor. The guide bar is a long bar made of wear-resistant steel with a round end. The cutting chain, which circles around the guide bar, contains sharp cutting teeth. Modern chainsaws are equipped with safety features such as chain brakes, hand guards, and vibration reduction systems to protect the user from accidents.

Safety

The use of chainsaws requires protective clothing to reduce the risk of injury. This includes items such as safety helmets, eye protection, hearing protection, chainsaw chaps (to protect the legs), and anti-vibration gloves. Chainsaw operators must be trained in the proper operation and maintenance of the chainsaw to ensure safety and efficiency.

Environmental Impact

Chainsaws, especially those powered by gasoline, have an environmental impact due to their emissions. Electric chainsaws offer a cleaner alternative, but their use is limited by battery life or the need for an electrical connection. The noise pollution from chainsaws is also a concern, affecting both operators and wildlife.

Cultural Impact

The chainsaw has made significant contributions to various industries, particularly forestry and landscaping. However, it has also entered popular culture, often being associated with horror movies and the iconic image of the chainsaw-wielding villain. Despite this, the chainsaw remains an indispensable tool for many workers around the world.

See Also

• Chainsaw safety
• Electric chainsaw
• Two-stroke engine
• Forestry
• Arboriculture