Abstract: A tamper-resistant screw cap and container body assembly has a cap which is connected to a safety band which can turn with the cap when the cap is being screwed on to the container body but which is held against turning when the cap is being screwed off, by the engagement of discontinuous ratchet-shaped inner beads on the cap with discontinuous ratchet-shaped outer beads on the container body beneath a continuous outer retaining bead.

Abstract: A space filler designed to be disposed within a space in a filled container between the contents of the container and a closure cap for the container to minimize unwanted movement of the contents of the container, wherein the space filler comprises a base member to rest on the top of the contents of the container and a plurality of resilient spacer arms projecting upwardly from the base member, at least some of the resilient spacer arms being so shaped and dimensioned so that when in use they are compressed and deformed and make contact both with the inner surface of the top of the closure cap and with the inside side surface of the container.

Abstract: A tracking type welding apparatus wherein a torch follows a probe along a weld seam and the probe senses lateral seam deviations and stores them in a pin cam and wherein the deviations are later used to move the torch in the same manner. The pin cam is remote from the torch and probe assembly and is electrically synchronized with it. Means are also disclosed to permit a single pin cam wheel to store horizontal and vertical deviation information and gap width information simultaneously.