Abstract: The snowshoe includes a closed loop frame carrying an intermediate decking attached to the frame. The decking is made from a full sheet of semi-flexible plastic material, and is peripherally attached to the frame. A toe hole is provided at the front end portion of the decking. On its edge rearwardly adjacent to the toe hole, the decking forms an integral first hinge, in the form of an arcuate boss having an upwardly convex upper surface, and a downwardly concave lower surface. A harness is pivotally attached to the decking. The harness has a cradle plate made of semi-flexible plastic material, and a flexible strap attached thereto. The cradle has an upper surface for receiving the foot of the person wearing the snowshoe, and a lower surface which forms an integral second hinge, in the form of an arcuate seat and a pair of cylindrical lugs spacedly adjacent to the arcuate seat.

Abstract: The watercraft has an elongated hollow hull having a pair of integral outwardly and upwardly projecting outrigger wings, onto which are mounted oar mounting devices each having a flat casing attached to rods protruding out of the outrigger wings. The attachment of the casing to the rods is accomplished with sockets installed on the rods, which have spherical housings engaged by ball joint portions provided on the casing, to form a ball and socket joint. The sockets are longitudinally spaced-apart on the hull side edge portion, so as to allow the casing to swivel about an axis parallel to the watercraft longitudinal axis. The casing is engaged by a pair of oar members pivoted therein in the plane of the flat casing. A pair of wires interconnect the pivoted oar members inside the casing, to allow pivotal displacement of the oar members only in opposite directions.

Abstract: The cattle feed mixer comprises a self-standing container having a cylindrical inner chamber in which is journaled a coaxial shaft rotatably carrying a number of radially extending paddles. An upper opening mouth allows hay and other cattle feed elements to be poured into the inner chamber, where the paddles are rotated to mix these elements together. Sector portions of a number of circular saw blades project into the inner chamber through slits made in the bottom of its inner wall, and rotate at high velocity to shear the hay carried thereagainst by the paddles. Once the mixing and cutting operations are completed, a discharge door is opened to allow the paddles to scoop the now homogeneous cattle feed out through a discharge opening, to be dispensed in suitable receptacles. The container has a collecting trough located under the slits of the saw blades, which is connected via an upwardly-extending sleeve to the inner chamber.

Abstract: A method for locally testing soil contamination by determining the generation rate of a contaminant fluid in porous soil, including the steps of injecting a purging fluid in the soil through a probe while simultaneously collecting fluid samples in the ground with the probe and measuring therein the contaminant concentrations, until an equilibrium is reached, i.e. until there is no variation of the contaminant fluid concentration. Afterwards, a tracer gas such as oxygen is continuously injected into the soil through the probe at a known flow rate in addition to the purging fluid, and in a small quantity relative to the second fluid, while fluid samples are collected wherein the tracer gas concentrations are measured. With the above-mentioned measured concentrations of the contaminant fluid and the tracer gas, the generation rate by the soil of the contaminant fluid may be computed.

Abstract: A system for converting a bicycle into a bicycle exerciser comprises a bicycle exerciser support having a base stably resting on the ground, the base having a pair of divergent integrally attached side legs. A pair of upwardly projecting support arms are integrally attached to the base side legs, and merge at their upper ends into a female coupling member. A complementary male coupling member is attached by means of a bracket to the seat tube of a conventional bicycle, under the seat thereof. Thus, the bicycle can be installed on the support by simply vertically resting the male coupling member onto the female load-bearing coupling member, for idling the rear tire which then becomes spaced over ground. A drag device comprising a dragging endless belt engages the rear tire, for selectively dragging the tire and offering resistance to the now stationary bicycle driver when pedalling.

Abstract: A storage rack is loaded and unloaded from the top with pallets carrying articles to be stored in and retrieved from the rack. The rack consists of a series of spaced columns arranged in parallel rows defining wells accessible from the top; the columns have vertically spaced, upwardly facing sets of steps protruding to an equal extent towards the centre of the wells. A crane is horizontally movable over the rack and stoppable above a selected well; it has a hoisting block which can be lowered between and guided by the columns of the selected well; a pair of hooks are pivoted to the hoisting block for movement towards and away from each other between opened and closed position; a pair of Z-shaped pallet holding beams adapted to carry a series of pallets aligned in end to end relation are suspended from the hooks and clear the steps when in closed position.

Abstract: The segregating unit of the invention is installed in a sewer pipe section having an upstream end and a downstream end, and a peripheral wall including a floor and a ceiling. The segregating unit comprises a bar screen having two straight panels composed of horizontally disposed, vertically stacked, spaced-apart bars. The two panels span the whole width and height of the pipe in a downstream convergent fashion, thus forming a V at their adjacent edges which open adjacent the pipe floor portion into an elongated, rigid, cylindrical sleeve member radially smaller than the pipe and upwardly inclined, extending through the pipe ceiling. The sleeve member comprises an output mouth located outside the pipe section, which opens into a storage box cart. An endless screw is coaxially installed inside the sleeve member and is driven into rotation by a motor.

Abstract: A snow plow composed of a central blade and of two wing blades which are laterally hinged to the end of the main blade for wing blade angular adjustment forwardly and rearwardly of the main blade from a position and alignment with the same. Furthermore, the level of each wing blade with respect to the main blade can be adjusted. Also, tilt motion of the laterally outward end portions of the wing blades either upwardly or downwardly is also possible. Each blade consists of a flat panel and its bottom edge carries a striker lip which can pivot rearwardly during forward movement of the plow upon the blade striking an obstacle. The snow plow is supported by a structure in front of a vehicle having forward lifting and tilting arms, this structure allowing a snow plow to laterally tilt within a limited angle in accordance with the transverse inclination of the surface being plowed. Upon slight rising of the snow plow, its forward pitch angle automatically increases to a pre-determined limit.

Abstract: A pyrolysis batch process is disclosed for recycling hydrocarbon containing used material such as plastics including ABS, polystyrene styrene and other non-chlorinated hydrocarbons, car fluff such as solid plastics, foam plastics, fabrics and the like, and more particularly scrap tires so as to obtain useful light oil and fuel gases. Used tire cuttings are loaded into a rotatable reactor which is closed, evacuated, rotated and heated until exothermic reaction is initiated. The reactor internal pressure is then allowed to increase to and is regulated within the range of atmospheric pressure and above. Upon continuing reactor rotation and heating, condensable hydrocarbon vapors and gaseous hydrocarbons are produced. The vapors are condensed into oil while the gaseous hydrocarbons are used as a fuel for reactor heating.

Abstract: The screening apparatus of the invention has a main cylindrical chamber linking a waste water inlet pipe to a refuse pipe and to an overflow outlet pipe. The waste water inlet pipe conveys water from a city sewer duct or the like, and this water is destined to be conveyed to a water treatment plant through the refuse pipe. However, during important storm water flow rate conditions in the waste water inlet pipe, the water level in the main chamber will rise since the refuse pipe will overflow due to a too large quantity of water. The screening apparatus includes a coaxial, cylindrical rotor defining a vertical through channel, and an annular grate being located intermediate the top and bottom of the main chamber and extending from the bottom edge of the rotor radially outwardly to the peripheral wall of the main chamber, where the annular grate is fixedly anchored. The rotor carries brooms adjacent the grate underface.

Abstract: This aerobic waste pretreatment process comprises inoculating a milk industry effluent with a mixture of bacteria and yeasts both classes of microorganisms capable of living and growing in symbiosis in the effluent, the population of the bacteria being, in most cases, several times greater than the population of the yeasts, maintaining the temperature and pH of the inoculated effluent between 0.degree. C. and 50.degree. C. and between 1.7 and 9, aerating the effluent while varying, if necessary, the pH at maximum rate of 1.5 pH units per minute and also, if required, modulating the aeration of the inoculated effluent at a maximum rate of 130 micromoles of oxygen per minute. A biomass is obtained which has a good nutritional value suitable for animal feed.

Abstract: This runner is for disposable skids, pallets and the like load-bearing platforms which are entirely made of corrugated cardboard. It consists of an elongated tubular member made of double face corrugated cardboard and secured under the skid panel and including a top web, a base web and two side walls. A reinforcement strip is located within the member; this strip has an undulated shape and a straight cross-section. It is built up of several laminations of single face corrugated cardboard with the corrugations vertically disposed. It is substantially parallel to the walls, its top and bottom edges secured to the top and bottom webs respectively and its opposite rounded crests in alternate contact with the walls and secured to the latter spacedly from one another longitudinally of the member. The strip only partially fills the volume of the elongated member. The pitch of the sinusoidal strip can be shortened in selected areas to further reinforce the runner in these areas.

Abstract: The invention relates to a method of measuring the degree of contamination of a soil volume by a contaminant which has a volatile constituent. The steps of the method include the injection of a non-contaminated gas into this soil volume for a period of time sufficient for a measurement of the volatile constituent to be reduced, and the subsequent measuring of the rate of increase of the concentration of the volatile constituent in this soil volume.

Abstract: The road sign post assembly comprises a tubular hollow post, having a bottom portion and a top rim circumscribing a mouth; a ground base, engaged by the post bottom portion for supportingly biasing the post in upright position over ground. A closure cap has a tubular section sized to fit into the top mouth of the post in a closed condition thereof. A seat is carried by the post rim for supporting a pair of rigid cross-bars forming an open road sign support frame, radially outwardly from the post. The closure cap is hinged to the post top end, includes an integral outer abutment lip, cooperating with the seat in the cap closed condition, and a locking pin extending through an annular transverse lip of the cap and through the post rim, for preventing accidental release of the road sign support frame from the post.