Abstract: A sectional ski having first and second ski sections with a first coupling member having a generally bar-shaped portion secured in endwise relation in a slot in the first ski section with the enlarged portion of the coupling member being contoured to form a part of the boot supporting region, the second ski section having a similarly configured coupling member secured thereto in endwise relation with the enlarged portions of the first and second coupling members having tapered tongue and groove portions matingly co-acting for locking the ski sections together.

Abstract: An auxiliary air inlet Device for an internal combustion engine, the device including a metal base having a chamber or opening for passage of fuel from the carburetor therethrough, the base having a cavity for admitting air from the atmosphere into the opening through a plurality of tubes extending into the opening. The opening is provided with a perforated plate enclosing the lower end thereof, the plate being in communication with and contiguous to, the tubes, which may likewise be perforated. Air is admitted from the atmosphere to improve the air-fuel mixture.

Abstract: A lathe turning fixture for use with a lathe having a three jaw chuck, the fixture including a base member having a flange portion and a work receiving threaded opening, the fixture having a first set of adjusting screws extending through the main body of the base member for engaging the face of the chuck, and a second set of three adjusting screws extending through the flange portion for engaging the edges of the jaws, each set of adjusting screws being 120.degree. apart with respect to the base of the flange, the adjustment of the sets of screws adjusting the axis of rotation of the workpiece.

Abstract: An article in the shape of a handgun for injecting air into live bait, the device including a generally transparent barrel member having hypodermic needle centrally disposed with respect to the barrel and recessed therein. The barrel is stationary and coacts with a movable spring loaded plunger having a check valve in the closed end thereof, the plunger being actuable by the trigger of the gun to pass air through a spring loaded check valve into live bait such as a worm or the like.

Abstract: An orbital pump or the like comprises a housing having first and second end walls and intermediate, axially spaced first and second annular, inwardly projecting wall members. First and second axial drive shaft portions are installed through the housing first and second end walls respectively. A spool shaped engine rotor having radially outwardly projecting end flanges is installed in the housing with the first and second end flanges closely adjacent to axially outer surfaces of the first and second annular wall members. The rotor is eccentrically rotatably mounted to inner ends of the drive shaft portions. The two annular wall members and rotor ends divide the housing interior into an inlet plenum at the housing first end, a central chamber and an outlet plenum at the housing second end. A pair of intersecting rotor vanes, mounted diametrically through major portions of the rotor and in mutual orthogonal relationship, circumferentially divide the central chamber into four working chambers.

Abstract: A window assembly including parallel opposing tracks with a window having an overall width slightly smaller than the width between the leading edge of the tracks, the window being constructed of channel material interconnected at the corners by angle members, a first pair of angle members having inserted therein fixed pivot pins. The second pair of opposing angle members has assembled therein spring loaded latching members having projections adapted for engaging slots within the tracks.

Abstract: A golf putter comprises a putter head and a conventional handle shaft attached thereto. A golf ball striking face on the head is divided into two contiguous transverse face segments, the lower of which is slanted downwardly and backwardly at about 1.degree.-7.degree. and the upper of which is slanted upwardly and backwardly at about 1.degree.-3.degree.. The two face segments, which intersect along a line about 0.600 inches above the sole of the head, cause a line, rather than a point, contact with a ball being putted and also cause an overspin to a struck ball, both to improve directional control of the ball. Rapid visual alignment between a preselected striking region on the face and a ball to be putted is provided by a plurality of visually contrasting lines formed transversely across a top surface of the head parallel to the face and spanning the striking region.

Abstract: An isolating and blood pressure transmitting apparatus for use in an extracorporeal blood treatment system or the like comprises a generally cylindrical, transparent plastic chamber with a housing having axially opposing inlet and outlet portions. The inlet portion is connected to a blood pumping and purifying portion of the system for receiving pressurized blood therefrom; the outlet portion is connected to a conventional pressure transducer which, in response to blood pressure transmitted thereto, controls blood pumping valving to maintain blood pressure in the system within predetermined limits. The chamber housing has a diameter and an axial length substantially greater than the diameter of the inlet and outlet portions, the chamber having an appreciable volume to absorb pressure surges. A thin flexible membrane, formed in a frustoconical shape is disposed across the housing to physically isolate the pressure transducer from the blood pumping and purifying portion of the system.

Abstract: Apparatus for vertically adjusting forms used for constructing concrete walls poured in several horizontal segments comprises a jack and means for supporting the jack from a pair of adjacent she-bolts previously installed near the top of a previously poured wall segment. The supporting means includes a pair of hangers adapted for hanging from the she-bolts and a support member connected between lower portions of the hangers. For horizontal adjustment the jack is preferably mounted on a plate which is slidable along the support member and which may be clampable thereto. Lower portions of the concrete forms are modified by installation of headers and bearing plates to receive the jacking forces. In the preferred embodiment the jack supporting member is about as long as the spacing between adjacent she-bolts, or about two feet long. In a first variation the support member is constructed to be shorter, the hangers being inclined rather than vertical, and the jack being fixed to the support member.

Abstract: A shelf bracket, particularly adapted for mounting on railings and the like, comprises a mounting bracket formed in a generally inverted U-shape with first and second legs depending from ends of a transverse segment. An elongate rigid shelf supporting member is fixed to lower regions of the first leg, below the lower end of the shorter second leg, to project orthogonally outwardly away from the second leg. A thumbscrew is installed in the first leg, below the shelf supporting member for engaging a railing support and enabling leveling of a shelf supported by two or more brackets below the level of the railing. A second thumbscrew is provided in the second leg, relatively close to the transverse segment, for adapting the bracket to railings more narrow than the length of the transverse segment and for clamping the bracket to the railing. Locking nuts are provided for each thumbscrew to maintain the adjustments.

Abstract: A heavy duty off-pavement or dirt bicycle and frame therefor, includes a rear wheel frame portion having a metal alloy, tubular main frame member formed into a broad V-shape, a lower arcuate portion thereof being normally, in use, the lowest part of the frame. A tubular crank hub, having an axis orthogonal to the plane of the main frame member, is welded to an inner, forward side of such member, upwardly from the bottom thereof, so that the hub is within the confines of the main frame member and is protected thereby from damaging contact with large rocks, curbs, etc. The continuous nature of the main frame member greatly increases the strength of the rear frame portion over similar, sectioned frames. A socket joined to the upper forward end of the main frame member, pivotally mounts a front wheel fork assembly.

Abstract: Apparatus for homogeneously intermixing flows of fuel and air to an internal combustion engine comprises a mixing chamber having a venturi portion across which is disposed an arcuate nozzle-matrix of converging nozzle cells which focus subflows toward pre-selected downstream crossflow mixing zones. A mainstream flow of air is introduced into the chamber upstream of the nozzle-matrix and one or more mainstream flows of fuel are introduced into the chamber upstream of the nozzle-matrix and/or into the crossflow mixing zones. The nozzle-matrix is adapted to accept at least portions of the main upstream flows to generate several optimum velocity subflows therefrom to enhance fuel and dispersion, atomization, and vaporization into the air.

Abstract: An aerial toy and launching stick apparatus comprises an elongate tubular stick having a helical track or guide formed about the periphery of at least major portions thereof. One end of the stick is expanded outwardly a small amount to form a stop. A sliding member has inner dimensions permitting slipping along the tracked portion of the stick but preventing movement past the stop and has a track follower on an inner surface so that the member is caused to rotate as it is slid along the stick. A spaced pair of thin flexible flanges are formed on the sliding member to receive and releasably retain a hub portion of the aerial toy before launching. The toy is otherwise in the form of a circular disc of relatively large diameter and is preferably constructed having outer edges curved downwardly and under to impart a generally air-foil section to the toy.

Abstract: A mechanical apparatus for adding or subtracting binary numbers, in a visual manner, comprises a front plate with first and second rows of ball receiving apertures formed near the plate top. Balls are introduced into these apertures in a manner representing binary ones of the numbers to be added. Near the bottom of the front plate is formed a third row of apertures. A back plate having front plate guides is provided against which the front plate is held. Three rows of recesses formed in the front plate contacting face of the back plate and two additional rows of front plate apertures cooperate, when the plates are held nearly vertically and the front plate is slid upwardly along the back plate, to cause movement of balls from the first two rows of front plate apertures, through the recesses and other apertures and without other moving elements or switches and into the third row of front plate apertures in a manner to indicate in the third row the binary sum of the two binary numbers being added.

Abstract: Removable guard rail stanchion apparatus comprises a clamping portion adapted for clamping to surfaces of a floor edge and a vertical stanchion post having a lower end releasably locked in a socket fixed to the clamping portion. The clamping portions includes larger and smaller diameter vertical tubes, the smaller diameter tube being slidably connected inside the larger diameter tube by an elongate axial screw. Horizontally projecting clamping member is fixed to each of the two tubes. Turning of the axial screw telescopes the tubes and thereby adjusts the spacing between the clamping members which bear against horizontal floor edge surfaces. A dished washer, through which the clamping force is applied, flattens to give a visual indication when sufficient clamping force has been applied, an angle is provided on at least one of the clamping members to fit over a floor edge corner to prevent twisting of the clamping portion relative to the floor edge.

Abstract: A disposable trap for animals such as mice comprises a cap assembly which is adapted for one end of a receptacle such as a beverage can. The cap assembly includes a flanged end plate having an entrance opening in a lower portion thereof, and an opening cover. The opening cover has a lower portion which covers the opening in the end plate and overlaps the end plate around the opening to form a one way door, and a narrow elongate upper portion which functions as a leaf spring to urge the lower portion to cover the end plate opening after the animal has entered the trap. A groove formed in the end plate flange fits into a mating groove present on most common beverage cans to prevent unintentional removal of the cap assembly from the can. Bent over tabs may replace the flange, and bent down tabs may be provided to prevent rolling of the trap.

Abstract: An electric worm collecting apparatus comprises a partially insulated, electrically conducting rod having an uninsulated lower end portion adapted for inserting into the ground and having an upper portion formed at a right angle to the lower portion. Part of the upper portion is curved through 180.degree. to provide a handle for inserting the lower end portion into the ground. A conductor, preferably having a polarized end plug, is provided for connecting an upper end of the rod to an A.C. voltage source. A normally off, momentary on switch is provided adjacent to the rod to energize the rod from the A.C. voltage source when the lower end is inserted in the ground, thereby causing a worm collecting current in the ground around the rod. A fuse is included in the conductor to provide current overload protection. A diode is provided to rectify the A.C. voltage to enhance the worm collecting effect by providing a pulsating but non-oscillating current. In a variation adapted for use with a D.C.