Patent ID: 7857096

Claim:
An upper shackle assembly for a steel pump jack for a wood pole comprising: a u-shaped shackle component capable of receiving the wood pole; a crank handle that extends through the shackle component and capable of engaging the pole to lower the pump jack down the pole; and a brake attached to the shackle component capable of engaging with the pole if the crank handle fails, the brake includes a latch plate having a first side and a second side, the first side has a latch tab and the second side has a slot and a cover rib, the latch tab has a hole and the cover rib has a hole, the brake includes a pin which fits through the latch tab hole to hold the latch plate in place when the latch plate is closed with the u-shaped shackle component, the hole in the cover rib receives the end of the crank handle.