Abstract: A pump jack base (10) for a pole (12) of a pump jack scaffold (14) comprising a base plate (16). A facility (18) is for securing the base plate (16) to a generally flat support surface (20). A structure (22) is for holding a lower end of the pole (12) of the pump jack scaffold (14). An assembly (24) is for attaching the holding structure (22) to the base plate (16) in an adjustable manner. The pole (12) can be positioned within one hundred and eighty degree angle with respect to the base plate (16) to compensate for the pitch and slope of the generally flat support surface (20).

Abstract: A cap for a hollow stake of a highway cargo vehicle having a tarpaulin roof supported above the cargo bed of the vehicle by a plurality of stakes. The cap encloses the top of the stake to protect its interior from the elements and includes a fastening means which extends downwardly and is couplable with the inner portions of the hollow stake. The cap is provided with a bow socket portion which cooperates with a stake bow socket portion provided in the interior of the post to form a bow receiving socket for receiving a bow extending through the protector cap into the hollow stake.