ANSI Device Numbers. From Wikipedia, the free encyclopedia. The ANSI Standard Device Numbers[1] [2] [3] denote what features a protective device supports (such as a. relay or circuit breaker). These types of devices protect electrical systems and components from damage when. an unwanted event occurs, such as an electrical fault.
The piston ring speed on the average chainsaw travels 2,500 surface feet per minute. A chain slides across the surface of the sawbar rail at around 5000 feet per minute. The chain is moving at 55 to 60 m.p.h. or a mile per minute (88 feet per second).
Stihl is innovative and an industry leader with over 1000 patents that protect its products from replication. The company was founded in 1926 with a two man electric powered bucking saw as their main product. It was the first saw built by Stihl, was two man operated, it had an output of 2.2kW and weighed 106 lbs. In 1929 Stihl manufactured the first petrol powered chainsaw named the âTree Felling Machineâ.