Abstract: A series-parallel monorail hoist based on an oil-electric hybrid power and a controlling method thereof. The monorail hoist includes a cabin, a hydraulic driving system, a lifting beam, a gear track driving and energy storage system, and a speed adaptive control system connected in series with each other and travelling on a track. The monorail hoist is capable of implementing an independent drive by an electric motor or a diesel engine in an endurance mode, a hybrid drive of the electric motor and the diesel engine in a transportation mode, and a hybrid drive of the diesel engine and a flywheel energy storage system in a climbing mode, according to different operating conditions that include conditions of an upslope, a downslope and a load. Power requirements for the monorail hoist under various operating conditions are satisfied, and the excess energy is recovered during the process of travelling.

Abstract: A clamper mechanism for a motion guide device includes a clamper block having tapered faces, clamper rolling elements arranged between the tapered faces and both left and right side faces of a track member, and a clamper rolling element holder attached to the clamper block with an interposition of an elastic member. When an elastic force exerted by the elastic member acts in a direction in which the clamper block and the clamper rolling element holder are separated from each other, the clamper rolling elements bite the tapered faces to bring the clamper block into a state restrained to the track member. When an external force against the elastic force exerted by the elastic member acts, the clamper rolling elements are brought into a free state within the tapered faces to bring the clamper block into a state not restrained to the track member to exert a stable clamping force.

Abstract: An elevator car or counterweight, comprising a frame, the frame including an upright structure in which a safety brake is mounted so as to allow for lateral movement of the safety brake relative to the upright structure; at least a first vertically or obliquely extending cantilever spring; wherein a first end of the first cantilever spring is mounted to the upright structure; and wherein the first cantilever spring is arranged such that a point remote from the first end provides a biasing force to the safety brake when the safety brake moves away from a default position. As the safety brake is mounted to allow for lateral movement relative to the frame, the safety brake essentially floats relative to the car or counterweight.

Abstract: A logic control system for magnetic track braking of a rail transit vehicle includes a magnetic track braking control circuit, a magnetic track braking power supply execution circuit, and a magnetic track braking status monitoring and feedback circuit. The magnetic track braking control circuit includes a pneumatic actuator relay, an electromagnet relay, a system protection relay, a power-on delay relay, a power-off delay relay, an automatic control branch circuit, and a manual control branch circuit. The pneumatic actuator relay is connected to the power-on delay relay, and the system protection relay is connected to the power-off delay relay. The automatic control branch circuit includes a first isolation magnetic track braking switch and an emergency braking relay contact. The manual control branch circuit includes a first circuit breaker, a cab signal option switch, a second isolation magnetic track braking switch and a manual touch button.

Abstract: An eddy-current rail brake device includes a row of magnets, a supporting member, a case, and a lifting device. The row of magnets includes a plurality of permanent magnets that are arranged in a traveling direction of a railroad car. To the supporting member, the row of magnets is mounted. The supporting member has magnetism. The case houses the row of magnets and the supporting member and includes a bottom portion that faces the row of magnets and is non-magnetic. The lifting device raises and lowers the supporting member inside the case while the row of magnets is kept facing the bottom portion. The eddy-current rail brake device can prevent or reduce adhesion of a foreign object and can be reduced in size in a right-left direction.

Abstract: An adjustment system includes an adjustment mechanism disposed in association with a wear element of a blade of a motor grader, and a controller. The controller is configured to receive a signal indicative of actuating the adjustment mechanism. The controller is configured to actuate the adjustment mechanism to force the wear element against a surface of the blade. The controller is configured to release the adjustment mechanism to unforce the wear element against the surface of the blade. The controller is configured to actuate at least one side shift cylinder to move the blade in a first direction. The controller is also configured to actuate the at least one side shift cylinder to move the blade in a second direction. The controller is further configured to lock the adjustment mechanism to retain the wear element against the surface of the blade.

Abstract: An approach is provided to access resources at legacy systems. In this approach, a resource request destined to a legacy system is receiving from a requestor with the resource request including an access token and being on behalf of a resource owner. A validation process is performed on the access token. If the access token is valid, the approach identifies the resource owner and one or more legacy access tokens used to access the legacy system. Another request is formed with the new request including the legacy access tokens. The new request is transmitted to the legacy system and a response is received back from the legacy system. The response received from the legacy system is transmitted back to the requestor.

Abstract: A device for supplying at least one electrical excitation coil with at least one electrical current pulse in order to alternatively permanent-magnetize or demagnetize at least one magnet segment containing hard magnetic material of a brake magnet of a track brake of a rail vehicle. The device has at least one long-term energy store and at least one magnetization circuit with a voltage transformer and having a switching device connected in an electrically conductive manner to the high-current energy store at one end and to the excitation coil at the other end, by means of which switching device current pulses to the excitation coil that are based on the electrical energy stored in the high-current energy store and that can be alternatively varied regarding the current flow direction can be switched according to the control signals controlled by a control device.

Abstract: An apparatus is disclosed for safely lowering a user from a structure. The apparatus includes a user support component upon which the user is supported while being safely lowered from the structure. The apparatus includes a brake system that has two hydraulic brakes configured to apply first and second defined pressures on a brake pad against a track situated proximate the structure. The track is configured not to activate the first and second hydraulic brakes at an upper vertical section of the track to allow the apparatus to descend with a positive acceleration; activate only the first hydraulic brake at a middle vertical section of the track to allow the apparatus to descend with a substantially constant velocity; and activate only the second hydraulic brake at a lower vertical section of the track to allow the apparatus to descend with a negative acceleration.

Abstract: The rail clamp includes a carriage having an actuator frame mounted to its base so as to extend upwardly from the base. Springs are mounted in the actuator frame at the upper end of the carnage. An actuator is mounted between the base and the springs. A wheel is mounted on a wheel support. The wheel engages the rail. At least one suspension frame is pivotally mounted to the carriage and at an opposite end, to the wheel support. The actuator operates on the suspension frame so as to elevate the carriage. A pair of clamping levers is pivotally mounted to the base of the carriage. Brake shoes mount on the lower-most ends of the levers. The levers are pivotable so as to clamp their lower-most ends together when their upper ends are moved apart.

Abstract: An aisle emergency brake system for a vehicle that is adapted to travel on at least one rail includes a brake assembly and a stop assembly that are adapted to stop the vehicle when engaged with each other. If the brake assembly is mounted to the vehicle, the stop assembly is mounted to the rail, or vice versa. The brake assembly includes a pair of brake pads and a biasing mechanism. The brake pads are nominally spaced apart an operating distance and face each other in a facing direction. The biasing mechanism biases the brake pads toward each other to the operating distance. The stop assembly includes a body defining two surfaces. The two surfaces face outwardly and have stopping portions that are spaced apart more than the operating distance of the brake pads.

Abstract: A brake mechanism for a beam trolley on a beam has a body member on the beam trolley adjacent the beam. The body member has a recess and axially aligned bores and a rotatable lateral pin extends through the aligned bores. The lateral pin has a rotatable elongate cam portion extending across the recess, and a brake pad is in the recess adjacent to the beam and abutting the cam portion. A handle is connected to the lateral pin for rotating the pin and the cam portion to displace the brake pad against the beam. The brake pad frictionally secures the beam trolley on the beam and locks the rotatable cam in place. Rounded end portions on opposite ends of the lateral pin and sleeve-like bushings between the axially aligned bores and rounded end portions permit rotation of the cam portion by the handle.

Abstract: A storm brake for a truck assembly supporting a large industrial device, wherein the truck assembly includes a truck chassis having a mount to support the device and a wheel engaging a raceway along which the truck assembly and device are to travel, the storm brake including: a storm brake shoe pivotably mounted to the truck chassis, wherein the storm brake shoe has a first pivot position in which the brake does not engage the raceway and a second pivot position in which the brake engages the raceway, wherein the storm brake shoe pivots in a direction generally aligned with a direction movement of the truck assembly along the raceway; an actuator having an extendable linkage coupled to the storm brake shoe and at an opposite end to a fixed mounting on the truck chassis, wherein extension of the linkage pivots the storm brake from the first position to the second position, and the fixed mounting provides a slidable engagement between the opposite end of the actuator and the truck chassis.

Abstract: A rail brake includes a rigid enclosure which mounts under a crane so as to dispose the base end of the enclosure over and adjacent a rail. A top plate is mounted underneath the upper end of the enclosure. A spring carriage is mounted for vertical translation within the enclosure, beneath the top plate. Springs are mounted between the spring carriage and the top plate so that the springs are compressed when the spring carriage is elevated. A brake shoe is mounted under the carriage. Actuators are mounted between the spring carriage and the base end of the enclosure. Extension of the actuators compress the springs and elevate the brake shoe from the rail. Retraction allows the springs to drive the brake shoe against the rail. An opening in the enclosure allows replacement of the springs and actuators. Elevation of the brake shoe provides for its inspection and maintenance.

Abstract: An elevator installation includes a guide rail and brake equipment for guiding, holding and braking the elevator installation. The brake equipment has a brake lining which co-operates with a brake surface, advantageously with the brake surface of the guide rail, for the purpose of the braking and holding. The brake surface has at least one longitudinal wedge groove or wedge elevation which is oriented in the braking direction and on which the brake lining acts in case of need. An amplification of the braking force is achieved by the longitudinal wedge groove or wedge elevation.

Abstract: A rail clamp comprises a frame and a pair of levers. Each of the levers has a brake pad at a first end thereof, a cam follower at second end thereof, and is mounted to the frame by a pivot disposed between said first and second ends. A cam is disposed between the levers and a spring biases the cam in a first direction. A clamp release actuator is operable to displace the cam in a second direction. The second direction is opposite to the first direction. A pair of variably sloped cam surfaces are disposed on opposite sides of the cam. Each of the variably sloped cam surfaces is in contact with the cam follower of a corresponding one of the levers, and each of the variably sloped cam surfaces has a slope which varies to counteract variations in a spring force of the spring as the cam is displaced, thereby maintaining a constant clamping force.

Abstract: The invention is a hybrid wheel apparatus with a hybrid roadway apparatus that greatly reduces the energy lost due to rolling resistance where operation is on the hybrid roadway, but the system is configured to allow operation on conventional roads as needed. The hybrid wheel system is a steel wheel used in combination with a rubber tired wheel. The hybrid roadway is a low profile steel rail fixed to the otherwise conventional road surface, which is preferably concrete but could also be the very common asphalt composition. Where roadways are appropriately equipped with rails, the rail top surface is elevated over the roadway surface, and dimensions are set so that most of load force is carried on the steel wheel for general forward travel. Where the rail is absent the load is carried on the rubber tire, and the steel wheel is elevated above the roadway surface such that contact between the steel wheel and the roadway is prevented.

Abstract: A linear axle includes at least one vertical guide rail, a guide block having a housing and being movable along the at least one guide rail, at least one brake wedge associated with each guide rail and being movable in a longitudinal direction of the respective guide rail, a linear drive moving the at least one brake wedge into an out-of-operation position during normal operation, and a mechanical energy storing device configured to move the at least one brake wedge into an effective position, if the linear drive becomes ineffective during a service interruption. In an alternative embodiment, the guide block associated with a linear axle of the aforedescribed type may be stationary, whereas the respective guide rail may be movable along its longitudinal direction.

Abstract: Methods and apparatus for decelerating a train are provided. The method including: disposing a movable surface configured to be moved by the train as the train passes the movable surface; and converting a kinetic energy of the train into potential energy upon movement of the movable surface by the train to thereby decelerate the train. The apparatus including a railway upon which a train travels. The railway including: a movable surface extending in a direction of the train's travel; and potential energy storage device operatively connected to the movable surface for converting a kinetic energy of the train into potential energy upon movement of the movable surface thereby slowing the train.

Abstract: A magnetic rail brake device includes a brake magnet with a solenoid former supporting a solenoid. A horseshoe-shaped magnet core is disposed adjacent to the solenoid former. The horseshoe-shaped magnet core includes a yoke having cheeks that project away from the yoke. Pole shoes are formed at ends of the cheeks. The solenoid includes an upper part, with an upper height and an upper width, and a lower part, with a lower height and a lower width. The solenoid is disposed between the cheeks and engages vertically around the yoke. The upper height is less than the lower height, and the upper width is greater than the lower width. The upper and lower heights are measured parallel to a vertical center axis of the brake magnet, and the upper and lower widths are measured transversely with respect to the vertical center axis.

Abstract: The invention relates to a popular amusement device with a personal transportation device, moving along a guide track arrangement (14), and eddy-current braking device (10, 70), comprising a magnet arrangement (10) and an induction body (70), for the selective braking of the personal transportation device, with one of the pieces of either the magnet arrangement (10) or the induction body (70) being provided on a guide track arrangement (14) and the other piece (10 or 70) being connected to the personal transportation device. The magnet arrangement (10) comprises at least two partial magnet arrangements (18, 20) each with at least one permanent magnet (74, 76, 78, 82, 84, 86), said partial magnet arrangements (18, 20) are, at least in the operating position thereof, arranged essentially orthogonal to the braking area guide track direction (B), at a separation (a) from each other, with the induction body (70) being arranged between the partial magnet arrangements (18, 20) during the braking.

Abstract: A braking system is provided for rail equipment supported for rolling movement on the rails of a railway. The braking system includes a pair of braking elements arranged to be supported laterally spaced apart on the rail equipment for engaging the respective rails of the railway. Each braking element includes an upper brake block for selectively engaging a top side and a side brake block for selectively engaging an inner side of the corresponding rail. Actuators are provided for urging the braking elements downward and outward in relation to the rail equipment. The actuators engage the braking elements with the respective rails to provide a wedging action between respective inner sides of the rails. This arrangement provides considerable braking force using a relatively simple construction.

Abstract: A braking system is provided for rail equipment supported for rolling movement on the rails of a railway. The braking system includes a pair of braking elements arranged to be supported laterally spaced apart on the rail equipment for engaging the respective rails of the railway. Each braking element includes an upper brake block for selectively engaging a top side and a side brake block for selectively engaging an inner side of the corresponding rail. Actuators are provided for urging the braking elements downward and outward in relation to the rail equipment. The actuators engage the braking elements with the respective rails to provide a wedging action between respective inner sides of the rails. This arrangement provides considerable braking force using a relatively simple construction.

Abstract: A monorail transit system includes transit drive units for supporting a transit car body on a beam and propelling the body along the beam. Improvements to the transit system include a quiet steel rail with vibration isolation for the beam, a vehicle braking system using a fixed plat engaged with a steel rail to arrest motion of the drive unit, a beam stabilizing support structure comprising a column with an insert that extends into a hollow beam portion, a drive unit coupled to the transit car body so as to be able to rotate with respect to the body while the drive unit and transit car body are traversing a curve in the rail, a leveling system for automatically leveling the car body with respect to a loading platform and a mechanism for automatically tilting the car body in response to centrifugal forces and then leveling the body, an articulating car body for accommodating curved beams, and a mechanism for providing positive traction on an inclined steel rail.

Abstract: A linear guide having a carrier body that can be moved along a guide track is provided having a brake device with brake shoes acting upon the guide track and a piston which is located in a pressure chamber which can be displaced by a pressure medium in the carrier body. The brake device has a spring acting upon the piston. Pressure plates are provided in the carrier body which are pressed against the brake shoes located on the guide track by the spring when the piston is not being subjected to the pressure medium. This results in a linear guide whose carrier body can be mechanically and reliably locked on the guide track in case of emergencies such as pressure medium outages.

Abstract: A progressive safety gear for elevators, having a console which encompasses one guide rail for an elevator car and is positioned in a transverse direction to the guide rail. Two brake shoes are mounted on the console so as to be positioned one on each side of the guide rail. One of the brake shoes functions as a passive brake shoe and other as an active brake shoe. The active brake shoe is supported on an eccentric which is fastened to a cam so that they rotate together. The cam and the eccentric are able to rotate about a common pivot. The cam and the eccentric together form a single-part actuating element. Moving the elevator car in the direction opposite to the direction of engagement causes the cam to rotate backwards, which in combination with the vertical play on the passive brake shoe enables the engaged safety gear to be easily and safely released again. An alternative version is provided which has a multi-part actuating element with an adjustable angle.

Abstract: An apparatus for moving a car along a travel path along guide rails includes a linear drive having a fixed first platform attached to the car and connected by springs with a movable second platform. Holding-units are attached to both platforms for engaging the guide rails and operating-units are connected between the platforms for relative movement. The holding-units and the operating-units include piezoelectric actuators that are selectively energized to move the car.

Abstract: The present invention relates to a Personal Rapid Transit system for transporting passengers along a pre-set guideway, and more particularly relates to a future Personal Rapid Transit vehicle braking system. A conventional braking system can not provide the large braking force required for very short headway operation under the effect of weather and environmental conditions due to variations in the available coefficients of friction at the running surfaces. In particular, the Personal Rapid Transit which is a public transportation system can not adopt the conventional braking system since the vehicles are powered by linear motors and are independent of traction. The PRT brake system comprises brake reaction rails (120) mounted on each inside of the guideway and brakes (300) acting on these brake reaction rails (120) as calipers. The brakes are automatically actuated when electric power supply is cut off, and thus can serve as parking brakes and emergency brakes.

Abstract: A rail brake device (1) having permanent magnetic energization, comprising a housing (3) of magnetizable material, which housing is mounted for up and down movement and has at least one permanent magnetic element (5) which in an operating position of the rail brake device is magnetically coupled to a rail (2), wherein the magnetic element is fixedly mounted along a first wall of a cavity in the housing; a switching element (16) of magnetizable material, slidable back and forth, is located next to the magnetic element, and a second wall of the cavity comprises two parts separated by a magnetic barrier (11), wherein, in the rest position, the switching element forms a magnetic connection between the magnetic element and a part of the second wall (19) of the cavity which is in direct connection with a side of the magnetic element facing away from the switching element, while in the operating position, the switching clement forms a magnetic connection between the permanent magnetic element and another part of the

Abstract: A brake for a track-operated vehicle employing the use of friction between at least one brake pad to be mounted on the vehicle and at least one frictional strip for attached to a lateral side of the track. The brake pad is to be attached to the vehicle by a device for urging the brake pad toward a lateral side of the track to which a frictional strip has been attached to such an extent that when the vehicle is maintained in alignment with the track, the inner surface of said brake pad will attain a position, in the absence of the frictional strip, that is intermediate between the lateral side of the track and the position where the outer side of the frictional strip would be located were such first frictional strip installed. Similarly, an auxiliary brake has a bar that fits across the track and two brake pads attached to the bar in the same manner as brake pads are attached to the vehicle.

Abstract: The present invention provides a linear motion clamping unit capable of reliably holding the casing unit at an arbitrary position on the track rail with a small force. In this linear motion clamping unit, when the actuators are deenergized, the rollers arranged in the openings of the retainers are pushed by the spring force through the retainers to engage with the lock portions formed between the inclined surfaces of the wedge members and the side wall surfaces of the track rail. The resulting wedge action locks the casing unit on the track rail in one axial direction. When the actuators are energized, the rollers are released from the lock portions by the action of the retainers, thus unlocking the casing unit.

Abstract: A magnetic rail brake device comprising at least two wear pieces manufactured from ferromagnetic material, magnetically insulated from each other by a filling piece and connected to a magnet which, in operation, are capable of providing a magnetic field extending through the wear pieces. In operation, the wear pieces are contacted with a rail so as to enable the magnetic field to close through the rail, and at least at the location of the parts to be contacted with the rail, the wear pieces comprise wear strips manufactured from nodular cast iron, and at least on the side facing the rail, the filling piece is formed from austenitic cast iron.

Abstract: A lockdown apparatus for releasably locking a coaxially mounted series of tool heads in a slitter-scorer machine includes an elongate locking member movable into simultaneous engagement with locking surfaces on each of the tool heads and a flexible membrane interposed directly between the locking member and the locking surfaces which membrane is flexed into and out of direct locking engagement with the locking surfaces by movement of the locking member. The flexible membrane may be used with either a rotary or reciprocal locking member and, in either case, the flexible membrane may be secured against movement with respect to the tool heads when they are locked such that unavoidable longitudinal movement of the locking member will not disrupt the critically accurate locked positions of the tool heads. The rotary lockdown apparatus utilizes an elongate cam of the type known in the prior art and, in the reciprocal lockdown apparatus, the locking bar comprises the armature of a solenoid.

Abstract: A lock cylinder for a backhoe slide frame which provides for a positive lock of the slide frame in selected positions is described. The slide frame is supported on two generally horizontal rails that are vertically spaced, and the lock cylinders mount between the vertically spaced rails. The lock cylinders each have a piston that acts to hold the slide frame seated against the upper one of the rails. The piston also provides a wedging action on at least one rail to hold the slide frame from fore and aft movement relative to the rail.

Abstract: A cam operated rail clamping device comprising: a base; a vertically disposed post projecting upwardly from the base and secured thereto; a tube rotatably and slidably mounted on the post; a hydraulically operated lift cylinder for raising the tube; a vertically disposed beam extending upwardly from the base and secured thereto; a horizontally disposed flange secured to the lower end of the tube; a clamping jaw carried by the flange and provided with a plurality of teeth for engagement with one side of a rail; a wearing shoe carried by the base for engagement with the other side of the rail; the flange being mounted for rotation about the post to bring the high point of the jaw into wedging action with the rail when the flange engages the top of the rail; and, a set of microswitches for cam positioning.

Abstract: A side shift backhoe mounted on a sliding frame adapted for sliding transversely along upper and lower tracks of a main frame and in which the sliding frame and one of the tracks have matching chamfered surfaces and the sliding frame and other track have matching horizontal surfaces, and a power device extending between the sliding frame and main frame to effect movement of the sliding frame vertically in one direction to tightly engage the chamfered surfaces and in the opposite direction to cause the horizontal surfaces to engage so that the weight of the backhoe is carried on said other track having the matching horizontal surface.

Abstract: A safety device for stopping an elevator car or counterweight has a brake shoe on one side of a guide rail, and, on the other side, two leaf springs and a roller. The springs define a tapered area, and the roller is pulled by a governor to engage the rail, which trips the roller, causing it to be forced into the tapered area and forcing the brake shoe against the rail. The roller engages a soft metal stop when the device is operated and this stop is worn away during each operation, which permits the roller to move higher on each operation; this compensates for any wear on the brake shoe. The governor is attached to the car or counterweight.

Abstract: A plate is attached to a rail which moves vertically in a housing. The housing includes a brake which rubs on one side of the rail; on the other side, there is a roller. A leaf spring is positioned between the housing and the roller. When the rail moves vertically in one direction, the roller is pushed progressively harder against the rail. This squeezes the rail against the brake, creating a braking force on the rail that increases, to maximum, in relation to distance the rail moves. This arrangement may be used as a buffer for an elevator cab or counterweight in an elevator.

Abstract: An electromagnetic track brake for a railway vehicle comprises an elongate brake energizing coil for energizing a plurality of U-shaped braking shoes mounted in a row on a rigid frame. To improve transmission of braking reaction forces from the shoes to the vehicle each shoe is moved downwards individually relative to the frame against spring bias. A tie rod extends along a lower branch of the coil engaging each of the braking shoes for the transmission of braking forces from the shoes to the tie rod. A cylindrical rod rigidly coupled to the frame is operably connected to the end of the tie rod to take up the braking reaction forces transmitted to the tie rod.

Abstract: A brake for rail vehicles comprises a working cylinder defining an accumulator chamber and a counter pressure chamber. A differential piston is movably mounted in the working cylinder and has a first piston surface communicating with the accumulator chamber and a second piston surface communicating with the counter pressure chamber. A restraining device in the form of an additional pressurized chamber communicates with another surface of the differential piston to hold the differential piston motionless. When brakes which are connected to and actuated by the differential piston, are to be activated to slow movement of the vehicle, the restraining device is partially or fully released which permits movement of the differential piston.

Abstract: A recreational mountain slide is basically a double-rail track down which a wheeled cart rolls. The rails are channels of substantially rectangular cross-section laid such that each provides a top, a bottom, and an inside vertical face, each such face being substantially flat, continuous, and unobstructed throughout the length of the track. The rails are mounted on supports which are adjustable and readily removable, being attached to the rails solely along their outer vertical faces. The front wheels of the cart are steerable by the rider. Each wheel is of constant diameter throughout its width and is wider than the rail on which it runs. The wheels are restrained from sliding laterally or jumping vertically off the track by members mounted on the cart in position to bear on the inside vertical face or the bottom face, respectively, of the adjacent rail. The cart also has brakes which can bear upwardly on the bottom face of the rail.

Abstract: A slideway arrangement comprises a slideway component and a slide component guidably slidable with respect to the slideway component under the action of a hydraulic ram. At least one of the components comprises at least one wedge arrangement and a hydraulic ram for urging the wedge arrangement to releasably wedge one of the components to the other of the components.

Abstract: A slide mechanism comprising a movable frame mounted for generally horizontal longitudinal movement along a support frame, the movable frame comprising first and second projections which extend transversely of the support frame adjacent an upper portion and a lower portion respectively of the support frame, and a slide member releasably mounted in a first groove formed in the under side of the first projection and having a second groove arranged for sliding movement along a guide rail disposed longitudinally on the upper side of the said upper portion of the support frame, wherein one of the first and second grooves has a wedge shaped cross-section and the other groove has a semi-cylindrical cross-section, there being provided means for urging together an inclined face on the second projection and an inclined face on a downward projection of the said lower portion of the support frame which is disposed in a recess in the second projection.

Abstract: An improved blade clamping mechanism for a motor grader blade which has blade support rails carried in pivoted blade support means for lateral sliding movement, and in which confining surfaces in the blade support means restrict both vertical and fore-and-aft movement of the rails in the support means. A clamp lever is pivoted on the circle of the motor grader and has a clamp arm which can be turned in a vertical plane against the bottom of the lower support rail with a high mechanical advantage to force the rail against an overlying confining surface; and a single action hydraulic cylinder and piston unit which turns the lever simultaneously presses a clamp shoe against the rear of the upper support rail. The clamps are normally locked by hydraulic pressure on the piston, and released by moving a manually controlled valve to a drain position so that a return spring acting on the clamp shoe can move the shoe and the lever to a release position.

Abstract: Braking device for railroad bogie running at high speed, comprising a fixed part integrally connected to the frame of the bogie and a movable part suspended from the fixed part and adapted to be vertically displaced by suitable means towards a rail. The movable part is provided at its lower face with a series of electromagnets arranged above the rail. The series of electromagnets is flanked at each of its sides with a braking shoe adapted to be applied on the rail at the moment of braking in such a way that the electromagnets be placed at a relatively small distance from the rail. Means are provided for controlling the position of the braking shows as a function of the wearing of the shoe.