Abstract: A ski manufactured to have screw holes for receiving binding mounting screws in the intermediate mounting zone of the ski. The screw holes correspond in number and position to the arrangement of mounting screws of at least one binding apparatus for binding a shoe or boot to the ski. The screw holes can be made by molding or machining the exterior envelope and inner core layer of the ski and can be capped or filled with plugs. The screw holes are preferably covered with a protection sheet provided with corresponding references designating the location of the covered screw holes. Manufacturing skis to have pre-bored screw holes eliminates the need for templates and boring tools otherwise required when mounting bindings to skis which is normally performed in ski shops by the retailer.

Abstract: The ski binding comprises a body which can be fixed to a ski and is removably accomodatable in a recess provided in the lower face of the sole of a ski boot. The body defines a fixed coupling element which is engageable with a first abutment provided at one end of said recess and supports a movable coupling element which can move with respect to the body and is removably engageable with a second abutment provided at the other end of the recess. The movable coupling element is connected to a piston which is sealingly movable in a fluid chamber connected to a tank chamber, wherein an operating piston, is sealingly movable, and protrudes from said body, and interacts with a portion of the recess upon the application of the boot to the binding, to feed the fluid from the tank chamber to the fluid chamber, with consequent motion of the movable coupling element to engage with the second abutment.

Abstract: This binding device comprises a slide guided slidingly on and adjustably attached to the bearing structure of a sporting implement in a longitudinal direction to the slide; a strap is arranged arcuately across the bearing structure and has juxtaposed end portions associated adjustably with the structure and throughgoing seats are provided to prevent the strap from being shifted in the longitudinal direction. Formed in the slide are cam-like guides at an angle to the longitudinal direction, in engagement with respective counter-guides formed on the end portions of the strap.This binding device is useful with many sporting implements, such as ski boots, skates, bicycle pedals, etc.

Abstract: Apparatus for leveling the front axle of an agricultural combine includes left and right wheel linkages in the form of four-bar linkages. A connecting rod synchronizes the motion of the four-bar linkages. Hydraulic cylinders are connected between the vehicle frame and the wheel linkages respectively to actuate the linkages such that as one wheel is raise above the axle the other wheel is lowered beneath the axle substantially the same amount as the first wheel is raised thereby maintaining the axle in a generally horizontal disposition.

Abstract: A sporting, skiing, paired device to support the skier in the kneeling position, device that provides a ski and an embracing support for the kneeling knee holding the lower part of the thigh and at least part of the upper calf, skiing device that allows the kneeling rider to lean forward by providing, at the front of the ski a handle that distributes forward the weight bearing area and increases the aerodynamics of the rider. Different forms of handles are described, along with built-in-one block, or detachable-from-the-ski embracing knee supports.

Abstract: A suspension control system includes a road surface sensor which produces a road condition indicative signal. A controller detects bounding and rebounding motions of the vehicle suspension on the basis of the road condition indicative signal from the road sensor. The controller monitors when the bounding and rebounding motion exceeds a predetermined level and when its frequency falls within a given frequency range. These conditions reflect typical vehicle body behavior during travel along an undulating road, in which case, the controller produces a control signal to stiffen the suspension system. This suppresses pitching motion of the vehicle on undulating road so as to satisfactorily and successfully provide good riding comfort.

Abstract: A suspension controller for controlling the suspension characteristic of a vehicle having a suspension which supports a vehicle body on plural wheels, wherein the distance between the vehicle body and at least one of the wheels is measured and a corresponding signal indicating the height of the vehicle is produced. This height signal is compared against preset reference signals and the characteristic of the suspension is altered, e.g., the suspension is made harder or softer, in dependance on the comparison. Additionally, the preset reference signals themselves are changed depending upon the alteration in the characteristic of the suspension. Changing the reference signals eliminates influence of the change in the amplitude of vibration of the height of the vehicle as a result of altering of the suspension characterisitc, whereby exact detection of a change in the amplitude of the vibration due to irregularities of the road surface is enabled to prevent overcontrol and hunting.

Abstract: This invention relates to a rear height controller for a vehicle having a height adjuster between the body and a rear wheel. The controller includes a front height detector which detects a sporadic bump or dip of a road surface on which the vehicle is running by measuring the distance between the body and a front wheel. The front height data is sent to a bump or dip judgment section in which the height data from the right and the left height detectors is judged whether the data corresponds to a predetermined size of bump or dip. If the data is judged to correspond to a bump or dip of a predetermined size, the judgment section sends a signal to a rear height adjuster. If the right front wheel sinks into a dip, the left rear body height is lowered in order to keep the posture of the vehicle unchanged when the right rear wheel sinks into the dip. If the right front wheel rides onto a bump, the left rear body height is raised.

Abstract: A knee binding comprising a flexible and semi-rigid shell which engulfs the sides of a user's knee, lower thigh and upper calf in the kneeling position with the user kneeling upon a rubberized padded area. The device is paired and separate for each leg and is used for the purpose of water skiing when towed by a rope held by the user's hand(s). The rubberized kneeling pad may be an ordinary rubberized foot binding for a water ski. The foot binding is kept tucked under the user's leg when the ski is used in the kneeling position. The knee binding permits, without interference, the regular use of the foot binding.

Abstract: A screw retainer for retaining a screw in a first member which is to be attached to a second member, including a bore in the first member having longitudinally spaced elastic projections extending into the path of the screw head to capturing the screw head to retain the screw in the bore before the first and second members are attached.

Abstract: A vehicle suspension system comprises suspension units (2) with double acting hydraulic actuators (12) for carrying the road wheels (4). Signals from transducers sensing actuator load and actuator piston position (14,15) are used in a control system (5) to generate signals representing forces corresponding to heave, pitch, roll and warp modes of vehicle movement and control signals are generated for supply to servo-valves (18) associated with the actuators to obtain desired vehicle attitude. The control signals can be modified by signals representing vehicle speed and lateral and longitudinal acceleration and under selective control of the driver.

Abstract: The invention relates to an oscillation-damping device for a motor vehicle; the device is constituted by cylinders and pistons, of which the upper and lower variable volume chambers are filled with a fluid and are interconnected by means of a system of conduits provided with damping constrictions having a cross-section which varies with the fluid passage velocity, some being capable of a symmetrical damping action in the two flow directions, while others are capable of a differential damping action in the two flow directions.

Abstract: A three-wheeled vehicle steering and suspension system includes two support assemblies for two opposed front steerable wheels, the support assemblies each having a tubular housing welded to the vehicle frame, a cylindrical tube rotatably supported within the housing and a cylindrical rod slidably supported within the rotatable tube. Each rotatable tube is affixed at its outer end to the upright support assembly for one of the vehicle wheels and at its inner end to a shock-absorbing member for biasing the wheels into road contact and permitting independent movements thereof to adapt to road undulations. Each sliding rod is affixed at its outer end to the vertical turning shaft of the upright support assembly of one of the wheels and at its inner end to a reciprocal steering linkage for actuating synchronous turning movements of the wheels.

Abstract: An electronic ski binding incorporating a capacitor for generating actuating signals to a release circuit, and a recharging circuit for recharging the capacitor from an energy source according to the energy level of the capacitor. A charge measuring circuit is provided for measuring the charge of the energy source according to the time required to recharge the capacitor.

Abstract: A paired sporting equipment (one for each leg) for skiing/sledding in the kneeling position by providing an assembly of a long and firm engulfing shell for the whole lower leg and lower 1/3 of the thigh and a firmly secured rectangular flat board placed under the shell. The device can be used strapless when intended as a recreational toy in small slippery slopes. Straps are provided when the device is used for high speed descend that requires firm control and torque. The flat board of the device can be specifically shaped in its two opposite distal ends so the whole device can be locked to a standard ski by ordinary bindings.

Abstract: An active suspension apparatus detects a relative displacement (x) between an axle and a vehicle body, discriminates a road surface state in accordance with the relative displacement and a change rate (x) in unit time which is derived from the relative displacement (x), and optimally controls characteristics of damping forces of hydropneumatic suspensions in accordance with a discrimination result (i.e., a road surface state). This discrimination is performed in accordance with a sum (Ax+Bx) of a signal obtained by multiplying the relative displacement (x) with a predetermined coefficient and a signal obtained by multiplying the change rate (x) with another predetermined coefficient. These coefficients are obtained in accordance with riding comfort against vibrations. The characteristics of the damping force of the hydropneumatic suspension are controlled by controlling the opening of throttle valves disposed between hydropneumatic chambers and actuators.

Abstract: A safety binding for a ski the disengagement of which for the release of a skier's boot is controlled by a signal provided by an electrical circuit. The safety binding comprises a stress detection device located on or in a test member which serves as a connection member between the boot and ski.

Abstract: A three-wheeled vehicle steering and suspension system including two support assemblies for two opposed front wheels pivotably mounted at opposite sides of the vehicle frame and operatively connected by a hydraulic cylinder arrangement actuated by the vehicle steering linkage for inducing opposed pivotal movement of the support assemblies during vehicle turning to cause leaning of the vehicle in the direction of turning. A biasing arrangement provides the operative connection between the hydraulic cylinder and the support assemblies for transmitting lean-actuating reciprocatory movement of the hydraulic cylinder to the support assemblies while yieldably permitting independent pivotal movements thereof.

Abstract: A ski boot for more easily concentrating the weight of a skier over the inside edge of a ski. A ski boot is provided with a sole having toe and heel pieces protruding therefrom, but offset in a direction toward the outside edge of the boot. The protruding portions are engageable by a conventional ski binding so that the weight of the skier is more concentrated over the inside edge (the edge closest to the inside of a skier's foot) of the ski.

Abstract: A suspension and steerage system is disclosed for a wheel supported vehicle. A suspension arm assembly of parallelogram configuration is pivotally attached to one side of the main frame and freely supports a wheel spindle. The piston rod of a hydraulic motor interconnects opposite wheels, and a lever structure is provided which, in response to pivotal oscillation of one wheel, axially activates the piston rod to transfer reactive forces to the opposite side of the main frame, and serves to level the plane of the main frame. The hydraulic motor can further be equallized to lock out further movement of the wheels, thereby stabilizing the vehicle in a static condition.

Abstract: A safety ski binding includes a first jaw which is fixedly mounted on a ski and a second jaw which is supported movably on the ski and includes an electrically activated release mechanism. A piezoelectric sensor is provided on each jaw, the sensor in the first jaw being wired to a signal-processing circuit provided in the ski and powered by a battery provided in the ski. An electromagnetic coupling is provided to couple the circuitry in the ski with and to provide power to the release mechanism and sensor in the second jaw. Signals from the sensor in the second jaw are transmitted to the signal-processing circuit through the electromagnetic coupling. The signal-processing circuit evaluates the signals received from both sensors and, when a release is required, sends a signal through the electromagnetic coupling to activate the release mechanism.

Abstract: A self pumping, level regulating apparatus for vehicles comprises at least one hydropneumatic, telescoping spring element, and a pumping and regulating element for pumping oil into the work chamber of the spring element as a function of the motion of an axle of the vehicle, to raise the level of oil in the work chamber, and hence the level of the vehicle and for moving oil out of the work chamber when a predetermined level is exceeded. In contrast to an arrangement where the telescoping spring element and the pumping and regulating element are integrated and disposed between relatively movable members, such as levers fixed to two associated swinging axle halves, only the pumping and regulating element is so disposed, and the telescoping spring element is separately disposed between the vehicle body and the wheel axle. A better distribution of force is thus achieved. Moreover, a single pumping and regulating element can serve a number of hydropneumatic spring elements.

Abstract: A safety ski binding has a connecting member which can releasably engage the ski shoe during chair-lift travel to prevent loss of the ski should the ski binding inadvertently release. The connecting member is U-shaped, has its bight pivotally supported on the ski binding, and has two legs which converge inwardly toward each other. The free ends of the legs are bent inwardly and extend toward each other. A stepping plate is provided below the ski shoe sole and aligned receiving openings are provided on opposite sides of the shoe sole and the stepping plate. The connecting member is pivotal about its bight between an engaged position and a disengaged position in which the free ends of the legs are respectively disposed in the receiving openings in the ski shoe sole and the stepping plate.

Abstract: A ski safety binding is designed to allow both a dangerous bending moment exerted about a transverse axis 15 through the weakest point of a skier's leg and a torsional moment exerted about a vertical axis 24 through the skier's leg to be detected and to be used to initiate release of the ski boot 54 from the binding when the bending and/or torsional loads approach dangerous levels. The binding basically consists of a sole plate 11 which carries a boot retaining system 56, 57 and which is mounted on a ski 12 for limited displacement in the longitudinal direction of the ski and for limited pivotal movements about a transverse axis 17 and a vertical axis 24. The sole plate is guided at its rear end for limited movement along an inclined guide 18 and along a transverse guide 21. This movement is resisted by respective hydraulic retaining means 28, 28'; 29, 29' which are however able to resiliently deflect once a predetermined load is exceeded.

Abstract: A safety binding for a ski the disengagement of which for the release of a skier's boot is controlled by a signal provided by an electrical circuit. The safety binding has a stress detection device located on or in a test member which serves as a connection member between the boot and ski.

Abstract: A structure for a running system, in a work vehicle, has right and left running wheels, hydraulic cylinders extensible and retractable in opposition to each other in response to axle-tilting displacement of the wheels as they rise and lower in turn in opposition to each other, a conduit connecting the cylinders with each other with an on-off valve interposed therein to be arbitrarily maneuverable thus to enable the lock up of both cylinders, and, a supply conduit made connectable to the cylinder-connecting conduit. There are provided valves in order to permit oil to be supplied only when inner pressure within this cylinder-connecting conduit has dropped to show negative pressure below a preset threshold.

Abstract: In a step-in electrical releasable ski binding (1) there is provided clamping means (5,6) having an open condition and a closed condition and a force unit (15) for providing a clamping force for releasably securing a ski boot (4) to a ski (2). A holding means (32) is provided for holding the clamping means (5,6) in its open condition against the force of the force unit (15). An electrically operated solenoid assembly (40) is provided which is responsive to the placing of the ski boot (4) in skiing position in the binding for releasing the clamping means (5,6) from the holding means (32) for closing the clamping means (5,6) with the force of the force unit (15).

Abstract: A pair of hydraulic locking cylinders for a vertically oscillatable wheel axle on the carrier frame of a mobile crane are interconnected and controlled by a hydraulic double-locking valve which is responsive to the centered or off-centered rotary position of the boom-carrying rotatable upper section of the crane. The double-locking valve comprises a pair of normally closed ball-type check valves which are operated by a valve stem comprising independently movable upper and lower sections. The upper valve stem section is positioned by a cam on the crane upper section and the lower valve stem section is positioned by a pneumatic actuator which is controlled by a solenoid valve selectively actuatable by an electric override switch in the crane operator's cab. The upper valve stem is moved to down (valve open-axle unlocked) position by the cam when the crane upper is centered on the carrier frame. The upper valve stem moves to up (valve closed-axle locked) position when the crane upper is rotated off-center.

Abstract: A releasable ski binding (1) is disclosed and described comprising separable binding parts (3) including clamping members (3c) for releasably securing a ski boot to a ski and responsive to a predetermined force applied to the binding parts (3) for a predetermined period of time for separating the binding parts (3). In the embodiment disclosed the members (52,53) are coupled in frictional engagement with one of the members (52) movable at a controllable rate of movement in response to a movement of the binding parts (3). With the predetermined force applied for the predetermined period of time, the movable member (52) effects a complete and substantially instantaneous release of all clamping forces from the binding parts (3).

Abstract: A ski binding having both a toe jaw and a heel holder. An electrical circuit is incorporated in the toe jaw and heel holder and indicates whether the ski boot is correctly clamped therebetween. The electrical circuit includes switch contacts located at strategic points on the toe jaw and the heel holder to indicate when the sole of the ski boot is not properly oriented relative to the toe jaw and heel holder.

Abstract: Apparatus for releasing a binding which fastens a ski boot to a ski, produces one or more electrical signals corresponding to the force between the ski and the ski boot and the torque between the ski and the ski boot, and actuates a ski boot release mechanism when the force or torque or a combination of both exceed predetermined values.

Abstract: A safety binding for a ski, includes a main circuit for providing a signal to control the release of the binding and thus the freeing of a user's ski boot. The binding includes at least one additional circuit for providing an electrical signal which is independent of signals produced during skiing and which is applied to at least one point of the main circuit to enable simple checking of the condition of the binding.

Abstract: A sole support plate for ski bindings, which can be releasably fixed on a ski-fixed base plate, bottom plate or the like of a ski binding part and which has a recess on its underside, which recess rests with its bottom surface on the upper side of the base plate, bottom plate or the like and which has on each of two opposite and vertically extending side surfaces a groove, by means of which the sole support plate can be mounted on corresponding guideways of the base plate, bottom plate or the like and can be locked in an offset part of the latter, wherein in the area of the recess there is provided a cavity, which can engage or disengage from the offset part of the base plate, bottom plate or the like, and wherein in the mounted condition of the sole support plate, fastening screws of the base plate, bottom plate or the like are covered up.

Abstract: A system or structure for supporting a construction rig, such as a crane or the like, is formed with four bearing members each of which is maintained in contact with a ground formation over which the rig is to be moved by deflective action of the support structure. In the operation of the device, when a first bearing member is deflected relative to a reference plane, a second bearing member located diagonally opposite the first bearing member is deflected relative to the reference plane in the same direction by approximately the same distance. At the same time, a third and fourth support bearing member of the support system are each deflected relative to the reference plane in a direction opposite to the direction in which the first and second support bearing members are moved by approximately the same distance as the first two support bearing members.

Abstract: A sole plate construction for a ski. The sole plate is pivotally secured to the ski about a centrally located pivot axis with respect to the sole plate. Front and rear holding parts are provided on the ski to hold the sole plate in a fixed position relative to the ski during a normal downhill skiing position of use. One of the holding parts incorporates a locking element which yieldingly holds the sole plate in a longitudinally aligned relationship relative to the ski. In order to minimize the number of fastening elements required to hold the components to the ski, the holding parts are secured to centering plates, each of which has an elongated slot therein receiving the pivotal support part pivotally holding the sole plate to the ski. Any flexing of the ski will cause the centering plates to shift with respect to one another and to the pivotal support part. A single fastening element serves to secure each centering plate to the ski.

Abstract: A dynamic device for holding the foot and the leg in position in a rigid structure consisting of shells or fastening elements, wherein there is at least a pump operated by the motions of the leg which is associated with at least an element for adjusting the pressure, with at least a valve and an assembly of fluid-chocks, the whole participating to the immobilization of the foot and the leg in the rigid structure.

Abstract: The invention relates to a tandem wheel arrangement for construction vehicles, such as a motor grader. Most particularly the invention relates to such an arrangement wherein both the forward and rearward wheels of the tandem wheel arrangement are mounted to levers and the levers are mounted to the vehicle frame. For example, when one of the roadwheels becomes elevated relative to the other when such roadwheel runs over a rock, a fluid circuit including cylinders interconnected between the vehicle frame and the levers, functions to change the lever relationship between the ascending and descending roadwheels such that the resistance to upward motion of the ascending wheel is reduced, a lowering force is imposed on the descending wheel to increase tractive effort thereof and the upward movement of the frame is reduced.

Abstract: In a cross-country or langlauf-ski binding having a sole plate, locking pins engageable with the sole of a ski boot and a clip locating the sole on the locking pins, there is provided a mechanism, enabling an easy and comfortable manipulation of the binding. For this purpose the sole plate comprises lateral mounting flanges with coaxial bearing holes and holding elements. These parts are cooperating in such a manner that they come into engagement during the insertion of the ski boot of a skier being automatically locked in this operative position. For releasing the binding the skier has only to press down a suitable release mechanism.

Abstract: A drive and suspension system for a longitudinally extending vehicle includes a differential having a pair of laterally extending output shafts. The output shafts support a pair of longitudinally extending gear train supports which journal and enclose a pair of longitudinally extending gear trains driven off the output shaft to drive the vehicle's drive wheels. The gear train supports, which are pivotal relative to the output shafts, are connected proximate the drive wheels to a pair of spring suspensions which in turn are connected to the ends of a laterally extending walking beam which is pivotable on a longitudinal axis of the vehicle.

Abstract: A connecting arrangement for detachably mounting a binding member consisting of a front binding device and a rear binding device on a ski member comprises connecting studs affixed to one of the members and the other member defining bores arranged to receive the connecting studs whereby the studs may be plugged into the bores. The studs extend obliquely to the upper surface of the ski member and enclose therewith an acute angle substantially less than 90.degree. in planes extending perpendicularly to the upper ski member surface and parallel to a longitudinal center line of the ski member when the binding member is mounted thereon.

Abstract: A device for securing a skier's foot to a ski omits the necessity for the typical rigid ski boot and enables the skier to wear non-rigid shoes or boots. The invention relates to a device which is detachably connectible to the bindings of a ski and which includes a foot-receptive framework having interior expandable pads which may be inflated to press firmly against the skier's foot. The pads are inflated by a pump within the device which is operated by the user's foot in response to skiing motion and forces. The extent to which the pads are inflated is controlled by a pressure relief device interposed between the pump and the chocks.

Abstract: Auxiliary binding for cross-country skis, comprising a clasp adapted to be fitted to a ski boot, a plate adapted to be fitted to the ski and having two upstanding prongs defining between them a recess having a width which decreases towards the plate, a wedge attached to the clasp and arranged to lodge in said recess in the standing or starting position, a rounded protuberance on the clasp adapted to fit into a corresponding groove formed in the heel of the boot, and a bore in the clasp for receiving a screw to attach the clasp to the heel of the boot.

Abstract: This invention relates to ski bindings of the kind which comprise a heel binding for fixing a ski boot heel to a ski, and a front binding having pivotally mounted toe clamps which are capable of releasing themselves from the ski boot toe when the pressure exerted by the boot on such toe clamps exceeds a certain amount. According to this invention the toe clamps are movable toward the point of the ski and free themselves from the ski to release the ski boot only in response to a forward pressure in the longitudinal direction of the ski.The invention also consists in such a binding when associated in combination with a ski.

Abstract: A combined ski boot and ski binding. The ski boot has a lower portion made of pliant material integral with an upper portion made of rigid material. The ski binding has a sole plate that is releasably connected to the top surface of a ski with side edges of the sole plate extending generally parallel to the longitudinal axis of the ski. Fastening members are hingedly connected to the side edges of the sole plates. A cooperating fastening mechanism releasably interconnects the fastening members with the upper portion of the ski boot.

Abstract: Multiaxle vehicles are provided having a superstructure that tilts less than the wheel axle support therefor, comprising a chassis; at least first and second wheel axles supporting the chassis, at least one of which is pivotably mounted on the chassis so as to be tiltable sideways about the pivot mounting in a plane substantially parallel to the sideways tilting plane of the vehicle; a superstructure pivotably mounted on the chassis above the pivot mounting for the tiltable axle, for tilting about the pivot mounting in a plane parallel to the axle tilting plane; and means on one side of the pivot mounting for the tiltable axle, linking the superstructure of the tiltable axle, and pivotably attached to the superstructure on one side of the chassis and to the tiltable axle on the other side of the chassis, the spacing between the pivot mounting of the axle and the pivot attachment of the linking means thereto being less than the spacing between the pivot mounting of the superstructure and the pivot attachment o

Abstract: A device for facilitating the mounting of various parts onto a holding surface. The device is particularly readily adaptable for use in facilitating a mounting of various ski binding components, such as base plates and stepping plates, onto a ski. A holding member has a plurality of holes therein with a segment of material surrounding each of the holes. A screw is fixedly held in each hole. A notch is provided in the segment of material surrounding each hole to weaken the material at that particular location. A ski binding part, for example, is then mounted on top of the ski and the holding member laid on top of the ski binding part. The same screws fixed in the holding member are screwed through holes in the ski binding part into the ski to fasten the ski binding part to the ski.

Abstract: A self-propelled vehicle including a frame having ground-engaging wheels at each side thereof, the wheels being carried rotatably at either end of an axle carried pivotally by the frame on a horizontal, fore-and-aft axis, and a power device for tilting the axle transversely of the vehicle to keep the frame in a normal horizontal position when the vehicle traverses sloping ground transversely to the slope of the ground, so as to prevent overturning of the vehicle when the slope of the ground is steep. The power device operates automatically with no attention from the driver required, and also functions to maintain the wheels in vertical planes to further improve the stability of the vehicle.

Abstract: In a type of safety ski binding having if desired a plate fixed to the boot and releasably fixed to a ski, there is provided structure for lightening the boot construction, particularly the sole thereof, including the provision of structure for gripping the heel of the boot for holding same against such plate. Such structures extend around the heel a distance at least equal to one-third of the radius of the boot sole measured from and extending rearwardly from points on the sides of the ski boot where a plane perpendicular to the longitudinally central plane of the ski boot and containing the center point of the radius intersects the side walls of the ski boot. Reinforcement of the heel of the ski boot may be provided by utilizing a trough-shaped insert around the bottom of the boot which may, if desired, be interrupted at the ball of the foot for facilitating walking. Thin tension straps extend under the sole of the boot for reinforcing same and preventing slippage.

Abstract: A ski binding has a cheek for engagement with the sole, or sole and upper, of a ski boot, and elongated ribs are mounted on the cheek by a bridging portion of less width remote from the ski boot, a resilient slip lining being engaged by deformation on the ribs and having opposed longitudinal edges positioned adjacent the bridging portion, the slip linings being of polytetrafluoroethylene or other material with a low coefficient of friction.

Abstract: A construction vehicle, such as a motor grader, comprises a frame having a pair of tandem roadwheel assemblies mounted on each lateral side thereof. Each roadwheel assembly comprises a pair of tandem roadwheels each rotatably mounted on an outer end of a lever arm which has its inner end pivotally mounted on the frame of the vehicle. A double-acting hydraulic cylinder is pivotally interconnected between the lever arms to selectively pivot the roadwheels to adjust the vertical height of one side of the vehicle relative to the other side thereof. An accumulator is preferably connectable with the cylinder to provide a damped suspension spring for absorbing road shocks and the like. Each of the roadwheels is preferably driven by a gear train connected to a driven output shaft of the engine of the vehicle.