Abstract: A plastic bag is formed, filled, sealed and separated from continuous webs of plastic material. The webs pass downwardly between complementary U-shaped heat sealing jaws that reciprocate and cooperate to provide seams which form a pocket that is closed after it has been filled from above and indexed downwardly. The top seam of one pocket is formed simultaneously with the bottom seam of an adjacent pocket and a weakened line of juncture is provided therebetween. Grippers carried on the heat sealing jaws engage opposite sides of the plastic webs above the location of the top seam of the filled pocket and cooperate with a separator that tensions the webs along the weakened line to rupture the filled pocket from the webs while the webs are still in a thermally weakened condition.

Abstract: A hanger adapted to be driven into a wooden frame member includes a one-piece stamped metal member having a head and a flat elongate symmetrical shank with a series of lands and grooves disposed on opposite sides of the longitudinal axis of the shank between its tip and a pair of laterally extending shoulders on its head. Inclined camming surfaces extend between the lands and grooves and cooperate therewith to compress the wood fibers laterally of the shank as it is driven into the wood. A lateral gripping surface behind each land surface engages the wood fibers which expand into the distally adjacent groove to provide a positive gripping action which resists disengagement.

Abstract: A plastic bag is formed, filled, sealed and separated from a continuous web of longitudinally folded plastic material. The web passes downwardly between complementary L-shaped heat sealing jaws that reciprocate and cooperate to provide seams which form a pocket that is closed after it has been filled from above and indexed downwardly. The top seam of one pocket is formed simultaneously with the bottom seam of an adjacent pocket and a weakened line of juncture is provided therebetween. Grippers carried on the heat sealing jaws engage opposite sides of the plastic web above the location of the top seam of the filled pocket and cooperate with a separator that tensions the web along the weakened line to rupture the filled pocket from the web while the web is still in a thermally weakened condition.