Abstract: This invention provides a dual hitch whereby two rakes, tedders or other trail implements can be operated at one time behind a tractor. The dual hitch is designed so that the implements towed by the tractor may be hitched and operated without alteration to the implements themselves. The dual hitch provides the needed operative components. The forward part of the dual hitch mounts on the three-point-hitch of the tractor. A pivot is provided in the dual hitch to allow the rearward implement to operate selectively on a swath to either side of the tractor and the forward implement. In an embodiment of this invention, a hydraulic system is part of the dual hitch to provide adequate power to the rearward implement.

Abstract: Apparatus and method for constructing an artificial ocean reef for use below the ocean surface to serve as an offshore breakwater for inbound waves and thereby prevent beach erosion. The reef has a plurality of adjacent sections, each of which comprises an arched wall having a series of side-by-side transverse concrete blocks, and flexible interconnections between the blocks at adjacent lateral edges to provide a generally smooth outer surface. The arched wall sections are each formed above the water surface on a barge or the like and then submerged with a shoreward side having a shoreward end resting on the floor of the ocean and a seaward side with a seaward end resting on the floor of the ocean outwardly from the shoreward end to present the smooth outer surface on the seaward side of the wall to incoming waves. Adjacent sections are secured together to form a continuous barrier aligned with the shore line of the beach being protected.

Abstract: A bag opener for tearing a hole in a bag of plastic or other perforable material where a pair of fingers next to each other are moved together in one direction to puncture the bag and then in transverse directions respectively away from each other to provide a tearing action on the bag.

Abstract: An improved hat band adapted to be wrapped around the body of a hat with free ends detachably connected to each other, the band being held in place by tension and slideably adjustable around the hat body to properly position the band on the hat.

Abstract: This invention relates to an improvement in an above-ground storage system for volatile liquids wherein there is a horizontally extending cylindrical storage tank located in a dike, the tank having a top vent through which liquid may escape; the vent being surrounded by a collar and top cover to form a chamber around the vent and the collar having an outlet to drainage means down into the dike; the improvement comprising a weir so positioned in the collar that a limited overflow of liquid from the tank through the vent is retained by the weir within the collar at the top of the tank and escaping to the dike only when the capacity of the weir is exceeded.

Abstract: A device for loading waste material into a refuse collection vehicle including a trough attached to a rear end of the vehicle. An inclined conveyor, having a lower end and an upper end, is disposed in the trough. An anchor is disposed at the lower end of the conveyor for holding a plastic bag containing waste material. The conveyor has slats with teeth for tearing open the plastic bag so that the waste material is emptied from the bag and then carried by the conveyor to the rear end of the vehicle. A hydraulic motor drives the conveyor, and a control bar is provided to activate and deactivate the hydraulic motor. A latch bar latches the control bar in a nondriving position wherein the hydraulic motor is deactivated.

Abstract: A ferrule for use in a rain gutter to surround a spike which connects the gutter to a supporting wall, with the gutter beneath an overhanging roof edge. The ferrule has a bore formed with internal longitudinal ribs angularly spaced from each other to define channels. The spike has corners which fit into the channels whereby the ferrule is held against rotation relative to the spike.

Abstract: A hay harvesting machine in which previously cut crop material in a windrow or swath on the ground is picked up and inverted to position a damp side up and a dry side down; as the crop is inverted, it is directed laterally toward one side of the machine and rearwardly; after inversion, the crop is turned further and conveyed for discharge back onto the ground laterally displaced from its original position on the ground.

Abstract: A clip for supporting a guard screen on a rain gutter to keep leaves and other debris from entering the gutter, the clip extending from an outer to an inner wall of the gutter and having means for attaching the clip thereto, the screen being supported on the clip, means being provided to attach the screen to the clip preventing upward movement of the screen relative to the clip and longitudinal movement of the screen relative to the gutter.