Abstract: A dop stick with an oval cabachon adhesively mounted thereon for application to a grinding stone has two axes of rotation, one axis to determine the longitudinal curvature of the face of the cabachon, the other to determine the transverse curvature, and may be moved at random about the two axes of rotation simultaneously without departing from accurate positioning of the cabachon for correctly grinding the cabachon face.

Abstract: A truck to haul live poultry has compartments arranged in horizontal rows and vertical tiers, there being two rows of tiers opening onto the opposite sides respectively of the truck. The walls of the compartments are formed by wall members incorporating vertical tubes and the floors and ceilings are formed by horizontal panels. Vertical rods extend upward from the truck bed through the horizontal panels and through the vertical tubes of the wall members to form a unified structure. The invention teaches that the number of vertical rods required may be minimized by employing special brackets to anchor the wall members and/or by making some wall members angular instead of linear. The number of vertical rods required for a horizontal row of N number of vertical tiers of compartments is reduced to 2N + 2.

Abstract: A parachute assembly in which the canopy of the chute is rolled or folded to an elongated shape with the skirt at one end and that end is folded back toward the apex of the canopy. A panel of flexible sheet material having a base portion and a cover portion is attached to the canopy by the base portion and has the cover portion folded over the folded skirt of the canopy. The suspension lines of the parachute are grouped in a rope-like bundle which is folded in zigzag fashion to releasably join the cover portion of the panel to the base portion to form the panel into a casing that snugly encloses the folded skirt. The remainder of the elongated shape is folded over the casing to form a compact bundle which is releasably enclosed in a parachute container of conventional type. The folded state of the skirt end of the canopy positively prevents inflation of the canopy until the suspension lines are fully stretched out during a parachute jump.