Abstract: A cover assembly for the box of a pick-up truck. The cover assembly has a rigid cover that is sized to fit between the side walls of the box when in the closed position closing the open top of the box. The assembly includes support ledges fastened to the inside of the side walls of the box for supporting the cover in the closed position. The support ledges carry female pivots spaced from the side walls to form gaps. The cover carries male pivots that enter the gaps in the closed position of the cover, the male pivots in a non-cooperating position with the female pivots. When the cover is lifted from either side of the box, the male pivot on the opposite of the box moves to cooperate with the female pivot on that side to form a longitudinal pivot about which the cover swings when opened.

Abstract: A looper used in the manufacture of asphaltic roofing felt comprising a driven endless belt of spaced tubes adapted to carry loops of felt between adjacent tubes, a track inclined toward said loops, a trolley having fingers adapted to contact the foremost loop in the looper, rollably mounted on the track wherein the improvement comprises a chain driven at the same rate and in the same direction as said endless belt and means on said trolley to interlock with said chain actuated when said fingers have contacted the foremost loop whereby the trolley travels with the foremost loop and the fingers maintain a constant pressure or contact on the foremost loop, until the loop is pulled out of the reach of the fingers, whereby the fingers drop and deactuate the interlock means, allowing the trolley to roll by force of gravity until the fingers again contact the foremost loop and the operation is repeated.