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The left and right crank arms speed up and slow down independently, relative to the chainrings during the pedalling cycle. The mechanism causing this is designed by ofsetting the axis of rotation of the crank spindle and spider, then connecting the spider to the individual crank arms via two independent links.
A crank is an arm attached at a right angle to a rotating shaft by which circular motion is imparted to or received from the shaft. When combined with a connecting rod, it can be used to convert circular motion into reciprocating motion, or vice versa. The arm may be a bent portion of the shaft, or a separate arm or disk attached to it.
All tools assigned to the same tool class are suitable for the same task, but they have different sizes. The tool classes are organized in a tree, which is adapted and expanded by the user. The tool types with the corresponding images describe the required geometric values and where they are measured. Each tool type is assigned to a class list ...
The two wheels per bogie, two crank arms, springs between the cranks and single mounting point are all evident. This model also includes a shock absorber for further improvements in ride quality. A wide variety of bogie-based suspension designs were introduced during the early days of tank design, but few used the concept of a common spring ...
A telescoping bolt is a bolt that wraps around the breech end of the barrel. This bolt design is often used to reduce overall weapon length without sacrificing barrel length or bolt weight. A turn bolt refers to a firearm component where the whole bolt without using a bolt carrier turns to lock and unlock.
The bolt construction is significantly revised, allowing the bolt to be field stripped by hand and allowing the more complex removal of the bolt head from the bolt body with simple hand tools. Calibre changes can be accomplished by the change of a complete bolt assembly or a calibre specific bolt sleeve, which is more laborious.