There is a discontinuity in the acceleration when the drive pin enters and leaves the slot.
2.
The straight leg requires the drive pin, the bent leg fits into a slot machined into the drive plate.
3.
In use the carrier and workpiece are inserted between centers and the leg of the carrier rests against the drive pin.
4.
A carrier is most often used when " turning " between chuck ) and the drive pin is attached to the plate.
5.
When the trigger is pulled, a spark plug ignites the fuel charge, pushes the piston and connected drive pin to the bottom of the chamber, and drives a nail.
6.
The building was an old log-house and the Director was boring holes in slabs for seats and into the logs to drive pins, upon which a board was laid for the desk.
7.
Because of the necessary finite thickness of the fork making up the slot for the driving pin this device generates a discontinuity in the angular acceleration \ alpha, and therefore an unbounded angular jerk \ zeta in the driven wheel.
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