Abstract: A projectile catching target having: a polygonal tubular frame formed by bending a length of tubular stock so that it forms an opening having a perimeter with angular corners and the ends of the tubular stock meet, a net having an open end and a closed end, and the open end of the net is secured around the frame, a three-way joint having two frame receivers and a leg receiver and the two ends of the tubular stock are engaged with the frame receivers to form a closed frame and the ends of the tubular stock are locked into placed in the three-way joint by friction and the resilience of the tubular frame, and a length of tubular stock is engaged with the leg receiver of the three-way joint to form a low cost target that is readily assembled and disassembled.

Abstract: A cam that when positioned next to a nail which is engaged with the claw of a claw hammer will keep the prying fulcrum of the hammer at the level of the head of the nail as the hammer rotates along the cam and pulls the nail upward with a force directed along the axis of the nail. The cam is provided with a handle that serves as an aid in positioning the cam and also an aid to placing the cam in and removing the cam from a craftsman's personal carrier. The handle also can serve as a straight edge, a scale, a scribing guide, a pry, and a tack and brad pulling aid. The handle and the cam together can serve as a square. The cam can be provided with a slot which a partially pulled nail can enter so that the hammer can regain a mechanical advantage and to press against the work surface and protect it from damage from the nail being pulled from the work surface.

Abstract: An apparatus for cleaning culverts and the like, and the apparatus has a longitudinal beam having a first end and a second end, adjustable support legs secured to said first and second ends of the beam, a carriage movably mounted on the beam between the support legs, apparatus for moving the carriage along the beam, a motor having a rotatable shaft secured to the carriage beneath the beam, and the rotatable shaft is configured to receive a removable coupling, at least one drive link having a first end and a second end and the first and second ends are configured to receive removable couplings and the drive link is joined to the rotatable shaft by a removable coupling and a culvert cleaning tool having a shaft configured to receive a removable coupling and the shaft is secured to the drive link by a removable coupling. The apparatus is provided with couplings for attaching and detaching the apparatus to and from a carrier vehicle. The carrier vehicle serves to transport and position the apparatus.

Abstract: A rectangular compartment for receiving and dispensing pressurized gas cylinders. The compartment, for its use, requires a minimal space both inside and outside the compartment. The compartment contains a tank receiving unit configured to receive multiple tanks arranged in files. The tank receiving unit is pivoted near its center of mass so as to permit easy rotation in place of the tank receiving unit. The compartment is provided with an access door. When the access door is open and the tank receiving unit is rotated outward to receive tanks, the tank receivers in a file project a short distance outside the compartment and are arranged one above the other. When the access door is closed, the tanks are in an upright position and secured in that position by an interlock between the tank receiving unit and the access door.

Abstract: A parquet panel assembled of rectangular shaped wood strips as inlays and the panel is formed to have irregular end edges such that alternate rows of inlay strips are staggered in such a way that a staggered edge of one panel will interleave with the staggered edge of an adjacent panel with sufficient precision that the seams between panels are not detectable and a former which enables the positioning and joining of the inlay strips with the requisite precision needed to assemble the panel.

Abstract: A core drive for internal drive core cutters having a non-rotating pull rod and a rotating drive plate. The core drive has a rotating element assembly that releasably couples to the drive plate and a non-rotating element assembly that is secured to the pull rod with a quick release securement. The drive is mated with a pusher so that the drive and pusher kit can be interchangeable with kits of other diameters to enable the quick changing of a mandrel to cut a core of a different diameter.

Abstract: A materials handling apparatus that is securable to a materials handling vehicle so as to permit an operator to position an arm carrying a pusher element over a stack of large heavy packages and to bring the pusher element to bear on the top package on the stack so as to push the package from the stack onto a carrier such as a pallet.

Abstract: A shield for a pop top beverage container that provides a barrier to foreign objects entering or exiting the container while permitting the flow of liquid from the container. The shield is formed of resilient and flexible material and is positioned adjacent to the inside of a shearable tab of a pop top container and secured there so that when the shear tab of the pop top is displaced inward into the container.quadrature.it causes the shield to deflect inward to permit the shear tab to pass and there after, resiliently repositions itself so that it forms a liquid traversable barrier positioned in the opening created by the displacement of the shearable tab.

Abstract: A resilient pressure roller of the large type that is of unitary construction with a rigid core, a central body of rubber or synthetic rubber of one durometer and a thin outer shell of another durometer. The body is given a nonlinear longitudinal profile and the shell is given a profile different from that of the body. The differences in profiles of the body and shell, along with their different durometers sum to develop approximately uniform nip profiles along the nip so as to minimize hysteresis heating and degradation in the roller and thereby provide a roller of greatly extended life expectancy.

Abstract: A grading attachment for loader type utility vehicles is provided. The attachment secures to the front of the loader and has an overarching beam which ends in a set of ground engaging wheels. A drawbar is secured to the front of the beam at a ball and socket joint and movably retained at the back of the beam by a vertical channel so that the drawbar can be readily exchanged for another similar drawbar. The drawbar has a sleeve into which a mounting pin may be secured so as to permit the attaching and detaching of a grading implement.

Abstract: A flooring system which has a subflooring structure that is made up of two or more layers of boards laid across each other and spaced apart from each other to create an interconnected labyrinth of void spaces in the subfloor between a finished top floor and a base, an air moving device for moving air through the labyrinth to ventilate the subfloor structure and thereby reduce potentials for damage to the flooring system due to moisture build-up under the finished floor, and a humidistat positioned in the labyrinth of void spaces to detect moisture build-up and to activate the air moving device.

Abstract: A device for assisting a bowman in positioning and holding his bow in a draw by causing the plane of the bow to be drawn into a vertical plane and also by providing a steady rest for maintaining a stable position while in the draw. The device is a tether secured at one end to the lower limb of a bow and secured at the other end to the lower leg or foot of a bowman.

Abstract: A readily attached and detached covering for large surface areas. To use the wall covering, the hook members of a hook and loop fastener system are attached to the surface to be covered. One side of the covering material is such that it can serve as a loop member for the hook member. The covering material can be secured in place and removed repeatedly without the need of special tools or precautions. The cover material is a composite having a hook member engaging layer on one side, a resilient layer and a dimensionally stable layer so that the material in place over a surface is dimensionally stable in the plane of the surface and resiliently accommodating in the direction perpendicular to the surface.

Abstract: An athletic flooring system having a fixed resilient sleeper. Sleeve members are passed through bored holes in the sleeper and anchored to a base so as to restrict the horizontal movement of the sleeper while permitting the sleeper to flex resiliently in the vertical direction. The flexibility of the sleeper is further enhanced by the provision of transverse saw kerfs cut into the top and bottom surfaces of the sleeper.

Abstract: The invention provides a apparatus for and a method of storing watercraft above a body of water for extended periods of time, including periods when the body of water is frozen over. The apparatus involves flexible, inflatable, toroidal shaped floatation devices which have bands secured thereto for the purpose of positioning and securing the floatation devices relative to the watercraft. The floatation devices are provided with elongated inflation tubes which enable the inflation of the floatation devices from locations a distance from the floatation devices.

Abstract: A child's motivational toothbrush of unitary construction such that no part, of the toothbrush can be nondestructively detached so as to endanger a child. The toothbrush has as a part of its handle construction a three dimensional figure which has a cavity in which an electronic package is sealed, and from which an electronic activation switch is accessible to a user. When the activation switch is pressed the electronic package cycles through a program that produces sounds and electrical impulses that activate lights that blink on and off in a programmed sequence. The intersection between the handle and the toothbrush is provided with and aid for the clean and destructive detachment of the brush end from the handle end so that the brush end can be discarded and the handle end saved.