Abstract: An improved metering valve, or flush valve, incorporates a rolling diaphragm mechanism of a cylindrical elastromeric material providing a smoothly transitioning flow rate control from the full open to the full close position. The rolling diaphragm sealing means is actuated by a floating cup driven by the differential pressure between the valve fluid inlet and an intermediate actuation control chamber. The valve control is spring biased to the normally closed position and is actuated by dumping all fluid from the control chamber through a poppet mechanism which is triggered mechanically through a sealing diaphragm. Upon dumping fluid from the metering chamber, the actuating cup is compressed by the pressure of the inlet fluids to roll the diaphragm to a substantially open position.

Abstract: There is disclosed a blowout preventer having rams which are moved between opened and closed positions by means of operating systems having axially reciprocable rods releasably connected to the rams for relative axial movement with respect thereto. The connections between the rams and rods fixedly support the rams against tilting, during repair or replacement, regardless of the relative axial position of the rods and rams.

Abstract: A dual valve plug stem actuator device for plug or globe type valves is disclosed wherein said actuator mechanisms provide respectively coarse and fine independent movement of the valve plug stem. One actuating device controls the movement in the axial direction of the valve plug stem relative to and onto a valve seat port by the rotational movement of the threaded valve plug stem through the internal threads of an internally and externally threaded actuator nut. The other of the actuating devices controls the movement of the valve plug stem relative to and onto a valve seat port through the rotation of the internally and externally threaded valve actuator nut where rotation of the actuator nut causes movement in the axial direction of said actuator nut in relation to the stationary valve body and where the axial displacement of the actuator nut causes the same relative axial rotationless displacement of the valve plug.

Abstract: The present invention relates to a jacking apparatus for effecting relative vertical movement between an upright leg and a platform. The jacking apparatus includes a frame having at least two generally vertical parallel side rails. A carrier arranged adjacent the upright leg is movably carried along the frame by fluid cylinders for vertical movement relative to the rails. First and second elongated jack tracks are fixedly secured in a generally vertical orientation to the upright leg. Each of the jack tracks is received within a correspondingly shaped recess in the carrier. Each of the jack tracks further includes a plurality of regularly spaced openings extending completely through the jack track in a direction generally along the circumference of the leg. First and second pins supported by the carrier are selectively engaged in an aligned one of the openings in the first and second jack tracks to prevent vertical movement of the carrier relative to the leg.

Abstract: A hook for a manhole cover having a hook hole, comprises a lever rod having a load end, at least one roller rotatably mounted on the lever rod and rollingly movable at least in a back-and-forth direction, and a hook mounted on the load end for engaging in the hook hole in the manhole cover. The hook enables the worker to open and close a heavy manhole cover quite easily with a reduced expenditure of physical energy.

Abstract: An overcenter tensioning apparatus is provided including an elongated crank member having a first tension member pivotally anchored thereto at one end, an elongated lever arm pivotally connected thereto adjacent its other end and a second tension member pivotally connected thereto intermediate the first tension member and the lever arm. The crank member, when the remote ends of the tension members extend outward in opposite directions, is swingable in one direction toward a limit position slightly past a center position between respective release and tensioning positions and abutment structure is operatively associated with the lever arm and crank member for releasably limiting angular displacement of the lever arm in opposite directions.

Abstract: A draw works comprises a drum shaft which is supported off a base at spaced locations by four bearings. Each of the locations is adjacent a support side plate connected to support members of the base. The support members extend transversely to the drum shaft. Two of the support side plates are located on one side of a drum associated with the drum shaft, and two other support side plates are associated with the drum shaft on the other side of the drum. Disposed between the first two support side plates on one side of the drum is a mechanism for receiving a first power input, and disposed between the second two support side plates is another mechanism for receiving a second power input. Transmission mechanisms for coupling the power inputs to the drum shaft are also disclosed.

Abstract: A jacking device for an articulated vehicle includes a support member secured to the vehicle and a jacking member slidable relative to the support member to lift the vehicle. A motor is detachably secured to the support member through a reaction member to cause relative movement between the jacking member and the support member. The motor and reaction member may be removed when not in use to allow storage at a remote location.

Abstract: An apparatus for distributing curtain walls of coolant around a passing hot rolled, extruded, or drawn round, metal article, and optimizing the cooling thereof. A circular liquid coolant header comprises an enclosure divided into two abutting annular compartments; the first compartment containing a smaller annular concentric compartment with openings communicating with the second abutting compartment, which, in turn, has several circumferentially positioned and evenly spaced nozzle assemblies for delivering the curtain walls. A nozzle assembly is located between two semi-round compartment inlets which receive coolant from the first compartment and diffuse and direct the coolant flow into a respective nozzle assembly.

Abstract: A treating ladle for use in a foundry in the production of ductile iron is disclosed wherein the treating ladle has a removable bottom portion and a detachably connected ladle carrier. The ladle carrier includes a bail carrier adapted for connection to a hoist and a retaining ring pivotally connected to the bail carrier to support the treating ladle for a tipping motion for emptying the contents thereof. Corresponding tabs mounted on the bottom portion and the body of the treating ladle permit the individual pieces to be bolted together to facilitate a disassembly of the treating ladle when maintenance and/or repair is desired. The treating ladle is adapted for connection to a separately attachable tundish cover.

Abstract: A spring assembly for mattresses, innersprings, and the like. The assembly comprises longitudinal rows of coils, each row comprising a continuous length of wire formed into a plurality of coils interconnected by Z-shaped wire segments alternately disposed at the top and bottom of the coils. Adjacent rows of coils are connected by longitudinally extending helical lacing wires wound through overlapping Z-shaped wire segments. By lacing the rows of coils longitudinally, the spacing between adjacent coils may be varied in selected longitudinal sections of the unit so as to vary the coil count and thus the firmness of selected areas of the assembly, as for example the center section. Furthermore, by so lacing the rows of coils, a single set-up of forming and assembly machine may be used to manufacture various widths of mattresses, as for example, twin, double or queen and king size units.

Abstract: A pneumatic clamping device used to clamp a plurality of sheets together includes a cylinder with a guide element at one end defining a pneumatic chamber within the cylinder and a piston having an elongated shaft, a cylindrical head on one end of the shaft and a clamping foot on an opposite end of the shaft. The piston head is movable within the cylinder chamber, while the piston shaft extends through the guide element and positions the piston foot for insertion through aligned holes in the sheets when the shaft is substantially extended from the cylinder. A coil spring is positioned in the cylinder chamber between one side of the piston head and an end of the cylinder opposite from its one end for biasing the shaft to its extended position.

Abstract: A machine tool table is disclosed having a lock accessible at the front of the table for applying pressure through a connection to a rear board so that a fence and at least one table spacer are held in position between the rear board and the front table. The lock may be adjusted at the front table to release the pressure so that the position of the fence may be changed.

Abstract: Apparatus for supporting the arm of a patient on an operating table formed of a member of relatively thin rigid material with an integral generally planar tongue portion configured to extend between the body of a patient, the member having an integral arm receiving portion of a length to receive at least a substantial portion of the arm of the patient, the arm receiving portion being upwardly curved, the outer edge being above the plane of the tongue portion of a height of about the thickness of the arm of the user, cushion material on the surface of the arm receiving portion to cushion the arm of the user and a retention member affixed to the arm receiving portion and extending over the arm of the patient to retain the patient's arm in position on the arm receiving portion.

Abstract: A method of feeding material to be scanned to, and ejecting such material from, a scanning system is provided. The scanning system receives, ejects and transports carrying material to be scanned. Two such transports are provided, to permit material to be scanned on one transport while the material on the other transport is changed and/or modified. The transports are fed into the scanning system from a bed and are received from the system on rails. The rails are above the bed. The bed and rails are in one vertical position when transports are fed from the bed into the scanning system and at another vertical position when a transport is ejected from the scanning system onto the rails. A transport may be dropped from the rails to the bed.

Abstract: A scanning system receives and ejects material to be scanned in a given plane. There are first and second transports, each for holding material to be scanned. A table has a bed capable of holding one of the transports. Rails above the bed hold the other transport. These rails may be operated to drop any transport that is on the rails onto the bed. The bed and rails may be raised and lowered so that any transport, on the bed, is in the given plane when a transport is to be fed into the scanning system, and so that any transport ejected from the scanning system will be received on the rails. With this apparatus the two transports may be scanned alternately, with the material on one being changed while the other is being scanned. The transports are moved by rollers and pushing devices.

Abstract: A sheet feeding device for an electrophotographic copying machine and the like has a flapping up member which protrudes through the bottom of a sheet feeding cassette to bring the sheets thereon into contact with a sheet feeding roller. The flapping up member is moved by a driven lever which is in turn moved by a low-tension biasing member in the direction of flapping the bottom plate up upon receipt of a sheet feeding commencement signal. A restrain member energized by a high-tension biasing member is provided to restrain the flapping up member to the retreated position upon termination of the sheet feeding commencing signal whereby the sheet feeding cassette is not affected by any resistance at the time of insertion or removal of the cassette and the bottom plate of the cassette is automatically flapped up only while sheet feeding is being operated.

Abstract: A rowing-type exerciser having a retractable seat support portion is collapsible for compact storage.

Abstract: The game board features a display disk situated between upper and lower layers. The display disk has a plurality of radial columns of information which are rotated under display windows in the upper layer. A removable drive hub engages the disk through a central recess in the upper layer. Channel sectors in the lower layer limit the rotation of the hub and disk. The upper and lower layers each consist of two sections hingedly joined together. Folding of the game board is accomplished by aligning the fold line on the disk with the hinge line between the two game board sections.

Abstract: This invention relates to a hockey stick comprised of a shaft and blade which simulates the principal characteristics of a wooden hockey stick including a blade in which a wear resistant core is provided wherein the area subject to wear are exposed and areas subject to impact are covered with a resin or plastic, and further provided with apertures in non-impact areas to increase the striking area and simulate the weight and weight distribution characteristics of a wooden hockey stick. The core is comprised of two substantially vertical surfaces and a base portion. The base portion of the core extends horizontally beyond an imaginary extension of the substantially vertical surfaces.

Abstract: A tennis racquet having at least mostly non-interwoven strings, a plurality of ball grips or string-protectors, each ball grip having an opening therethrough receiving a respective main string, retaining units holding each of the grips in a position along its main string, the grips being preferably multiple row-groups of grip-tubes each row-group being held together as a unit and called a spinner, the spinners being disposed spaced along the mains.

Abstract: A recreational device 10 for impelling an object comprises a generally upright shaft 12 having a lower end 20 and an intermediate part 22; a lever arm 14 having a heel portion 40 and an upper actuation portion 42 pivotally connected to the lower end 20 of the shaft 12; a stabilizing link 24 pivotally connected to the intermediate part 22 of the shaft 12, and a linkage assembly 32 for urging the object forwardly in response to downward movement of the shaft 12, the reaction of the heel portion 40 against a surface, and the forwardly and downwardly swinging of the lever arm 14.

Abstract: A kicker apparatus for a slingshot bumper assembly in a pin ball game including a playfield board on which a ball rolls for engagement with a resilient impact band to actuate a drive solenoid, includes a frame which mounts the solenoid with its plunger axis perpendicular to the playfield board and which pivotally supports a drive crank having one end connected to the solenoid plunger and the other end projecting above the playfield board. A kicker member is loosely fitted over the upper end of the crank and has guide feet respectively slidably received in a pair of track channels in the frame for reciprocating movement along a path parallel to the playfield board in response to the pivotal movement of the crank for engagement with the impact band to impart a propelling force to the ball in a direction substantially parallel to the playfield board.

Abstract: A manipulative cube puzzle having a hollow box structure of parallelepipedon form and containing a predetermined number of cubes at least one less than the capacity of said box structure in at least one tier, the construction of said box structure being such that any cube therein may be slidably positioned for flipping to any one of 24 positions at the option and control of the player.

Abstract: The sports practice glove is for use with a club, racket, bat or other item of sports equipment which has a handle to be gripped. The glove has a pressure operated switch on each finger and on the thumb of the glove and on the palm area of the glove. The switches which are rubber pad pressure operated switches of the normally closed kind are connected to a battery operated alarm circuit having an audible alarm. When in use and the glove is worn and a club properly gripped the switches are all held open. However if the club is improperly gripped the pressure on one or more switches will fall below a predetermined threshold a switch or switches will close and the alarm is actuated.

Abstract: Game apparatus comprises a game board together with a plurality of playing pieces each coded to indicate its attribute and value. Three playing pieces of different attributes and different values are stacked to comprise a playing unit. Two players compare the attributes and values of the bottom-most piece of their playing units successively in a number of plays in order to determine the outcome of the game. The game comprises three different groups of attributes having strengths that allow a first group to be stronger than a second, the second group to be stronger than a thrid and the third group to be stronger than the first. In addition, each of the groups of attributes contains three hierarchically ranked groups of different values.

Abstract: An archery arrow having a collapsible tail assembly that includes an arrow shaft having three vanes adjacent its butt end that are generally symetrically located relative the shaft peripheral surface, each vane being made of a piece of semi rigid plastic or plastic cloth material that has axially elongated first and second edge portions secured to the shaft with the first edge portions being longer than, and extending forwardly of, the second edge portion and a loop portion extending angularly between said edge portions and extending away from the shaft to in conjunction with the shaft provide bounded areas of progressively smaller cross section areas in transverse planes that are perpendicular to the shaft axis in a rearward direction. The juncture of the loop with the first edge portion along its length is angularly offset relative the shaft peripheral surface so that as air passes through the vane when the arrow is being shot, the air imparts a turning force to the arrow.

Abstract: The invention comprises a novel method for lubricating and cooling mechanical seals, particularly those seals used in a vertical drill box system. Specifically, the invention utilizes the driving force of the rotating gears in the gear box to convey fluid to an otherwise inaccessible upper seal face. Cooling and lubricating the seal in this manner insures that the various rubber portions of the seal are not degraded by excessive heat. The invention can be utilized in any application requiring sealing of gearing mechanisms from environments containing large amounts of dust or other debris. A preferred application is in mining equipment.

Abstract: A ring gear mounted for rotation and driven by a pinion which dips into an oil bath is provided on each face with a sealing device. Each sealing device has a conical annulus tapering in a direction away from the ring gear and on which a ring is positioned in spaced relation with the gear. There thus is formed between the gear and each ring an annular oil collecting chamber which leads oil carried upwards by the ring gear back into the oil bath.

Abstract: A multiple-jaw chuck comprises a housing and a drive cylinder driven parallel to the longitudinal axis of the housing and driving a plurality of chuck jaws towards and away from the housing longitudinal axis. The chuck includes one or more axially-extending pins for each chuck jaw fixed to the drive cylinder at an acute angle to the housing longitudinal axis. Each chuck jaw includes a bore for each pin and formed at the same acute angle, such that each chuck jaw is driven radially towards and away from the longitudinal axis of the housing when the drive cylinder is driven parallel to the housing axis. Each chuck jaw further includes an inner drive arm coupled to the drive cylinder, and an outer workpiece-engaging arm, each of the drive arms being of substantially cylindrical configuration and movable in a bore of corresponding cylindrical configuration formed in the housing.

Abstract: A chassis for a self-propelled agricultural machine adapted to travel in a predetermined longitudinal horizontal direction basically comprises a lower frame, a middle frame spaced above the lower frame and offset somewhat therefrom, and an upper frame spaced above the middle frame and offset horizontally therefrom. The lower frame has a pair of longitudinally extending rigid lower side beams having outwardly offset rear ends and a plurality of longitudinally spaced and transversely extending lower cross beams fixed to and bridging the lower side beams.

Abstract: A hand-operated, wheeled carrier for transporting large-sized plates, such as building boards, comprises a stand including a generally upright frame structure mounted on an elongate base structure having along one longitudinal side thereof brackets, on which a small number of plates to be carried may be rested on edge in a position leaning against the frame structure, a hook member and strap connected to the stand being provided to releasably retain the plates in such position. Substantially midway between its ends and close to the plate brackets the base structure has a single, relatively large supporting wheel adapted to take the entire load, when the stand is to be moved, the stand then being balanced on the single wheel by the operator. A pair of casters, one near each end of the base structure, provide additional supports for keeping the stand in a stable position when at rest, the casters being located further away from the plate brackets than the supporting wheel.

Abstract: The control ends of two pivotal braking arms have elbowed extensions rotatably mounted in bearings provided on or within an operating pedal. In the active braking position of the pivotal arms, the axes of the elbowed extensions form a V having a downwardly-directed point and the braking ends of the pivotal arms are outwardly displaced with respect to each other on each side of the ski. In the withdrawn position, the braking ends are close together and set back with respect to the sides of the ski. However a tension spring tends to produce a pivotal displacement of the operating pedal with respect to the pivotal arms to an angular position such that the braking ends are spaced at a sufficient distance to pass on each side of the ski.

Abstract: Front and rear frame sections are provided with the front section including central and opposite side rearwardly diverging front frame members including forward ends anchored relative to each other and a laterally spaced apart rear ends. The rear section includes central and opposite side rearwardly divergent rear frame members including laterally spaced apart forward ends and rear ends removably supported from central and opposite end portions of a transverse axle assembly having ground engageable support wheels journalled from its opposite ends outwardly of the rear ends of the rear frame members. A trailer hitch assembly is carried by a forward portion of the front frame section and the front and rear ends of the rear and front frame members are removably telescopingly engaged with each other.

Abstract: The present invention relates to a suspension for a train of two wheels of a vehicle, comprising two arms oscillating about an axis transverse with respect to said vehicle and each bearing one of said wheels, elastic means and damper means being associated with said arms respectively to dampen the vertical movements of said wheels, wherein the transverse shaft for oscillation of said arms is itself mounted to oscillate parallel to the longitudinal direction of the vehicle. The invention is more particularly applicable to improving passenger comfort in the vehicle and for improving the road-holding qualities of said vehicle.

Abstract: A combined key holder and booklet comprising front and back covers enclosing a plurality of booklet pages. The front cover and a pocket member peripherally attached to the front cover define a pocket into which a key may be inserted through a lateral slot in the front cover. The longitudinal and lateral dimensions of the components are controlled to provide specified relationships. A detachable envelope is optional as part of the booklet.

Abstract: A synthetic plastic pipe coupling comprising an internally threaded fitting of synthetic plastic material and a pipe of synthetic plastic material. The material of the fitting is harder than the material of the pipe so that the threads of the fitting act as a die for the creation of helical grooves on the pipe as the pipe is hand screwed into the fitting. The pipe is continued to be screwed passing the threaded portion of the fitting to a cylindrical portion adjacent to the threaded portion, which has a diameter not greater than the internal diameter of the threaded portion, so that the initial grooves are erased and the pipe is compressed to a lesser diameter for the purpose of creating a fluid tight contact zone operating hydraulically in favor of pressure and proportionately to it.

Abstract: An insulating pipe part of thermoplastic material comprises two opposite sections and one third section disposed at an angle with respect to the former sections, the wall portion of said sections being provided with a continuous wall cutting slit. The pipe part may comprise thicker parts of a polyurethan foam.For forming an insulated branch pipe joint, said insulating pipe part is pushed over a branch pipe and subsequently plastic sleeves with beveled front ends are heatshrunk on to said sections, thereby closing said slit in a moisture tight manner.In order to obtain a reliable moisture tight closing, the sleeves are provided with beveled front ends so that the lower sleeve ends overlap each other.

Abstract: A breech block hanger support member for a subsea wellhead assembly for wells having a working pressure up to approximately 15,000 psi. The assembly includes a wellhead, the support member, a packoff for sealing the support member, and one or more other casing hangers supported by the support member. The support member is connected to the wellhead for itself suspending casing, for supporting at least one other casing hanger and casing, and for containing the working pressure. Breech block teeth are provided on the wellhead and support member to permit the support member to be stabbed into the wellhead and rotated less than 360.degree. for completing the connection therebetween. The teeth include groupings of spaced-apart no-lead teeth having slots therebetween. The slots provide a flow way for passing well fluids. The support member further includes an upper annular flange for arresting its downward movement within the wellhead. This flange includes flutes aligned with the slots for passing well fluids.

Abstract: A valve includes a molded plastic body portion having an internal chamber forming a valve seat having inlet and outlet openings. A plastic plug member is rotatably positioned in the valve seat and has a flow passage which in the open position of the valve communicates with the inlet and outlet openings. Pipe fittings of the valve body communicate with the valve seat and are aligned with the inlet and outlet openings. Each fitting is coupled to a conduit of a piping system by a nut threaded into the respective fitting to urge a wedge-shaped collar into frictional engagement with the conduit. The nut surrounds the collar which is advanced by the nut into the fitting until a radial shoulder on the nut abuts the end of the fitting so that the end of the nut in the fitting applies a controlled compressive force upon a gasket seal to effect a fluid tight connection of the conduit to the fitting.

Abstract: A connecting arrangement for connecting two hollow components of a hydraulic circuit to one another, especially a pipe or hose to a mating component, includes a guiding formation on one of the components, especially the mating component, and a mounting formation connected to the other component, these formations having correlated cross-sectional shapes such that the guiding formation guides the mounting formation in a predetermined direction, especially the longitudinal direction of the one component, and prevents relative displacement in all other directions. The mounting formation is advantageously constituted by a separate mounting element which is affixed to the other component by a threaded connection, such as by a screw cap. The formations advantageously have complementary dovetail-shaped cross-sectional configurations.

Abstract: To connect together tubular elements, such as pipes and the like, made of materials which are difficult to machine and handle, and which are expensive, such as quartz glass, or quartz materials or quartz-ceramic goods used, for example, in laboratory or chemical processing apparatus, the end portions of the tubular elements are formed with a circumferential groove or recess in which a spring ring made of metal, fiber-reinforced plastic, or the like, is snapped, the spring ring (3) being clamped at its external, projecting surface by a conical surface (8) on a flange ring (4) and a similar conical surface (8) on a counter ring, the flange ring and the counter ring being clamped by connecting bolts (6); two such elements can be connected together by passing connecting bolts (10) through aligned openings (7) in the flange rings; preferably, the connecting bolts are spring-loaded (11). The engagement angles of the conical surfaces (8) on the rings are, for example, about 38.degree.

Abstract: A clamp for joining a pair of flanges has a clamp chain with grooved clamp shoes thereon which, in the closed position of the clamp, straddle the edges of the flanges to press them together. At least some of the clamp shoes are fastened to the clamp chain through an intermediate member which pivots at both the clamp chain and the clamp shoe.

Abstract: A plastic support for attaching a plastic bumper to the metal frame of a motor vehicle comprises a metal pad having means for attaching the pad to the metal vehicle frame. The means for attaching the pad extends from, and is affixed to, one face of the pad. The pad is completely embedded in a moldable thermoplastic matrix except where the means for attaching the pad to the metal vehicle frame extends through the matrix. The matrix adjacent the other, or opposite, face of the pad is affixed to the plastic bumper, forming a plastic-to-plastic joint.

Abstract: A double hand applicable to an industrial robot comprises two hand units (2, 3) comprising at least two pairs, one each, of fingers (2-1 and 2-2, 3-1 and 3-2) and plate members (2-3, 3-3) of a pressing unit (4) disposed in parallel along the center axis of the fingers. The hand units (2, 3) are connected through a pressing mechanism (4) to constitute a double hand in a manner that the respective gripping center axis of the two hand units are in alignment, the respective plate members (2-3, 3-3) of the pressing unit are disposed opposite to each other and the opening sides of the respective pairs of fingers of the two hand units are directed in opposite directions to each other.

Abstract: This invention relates to fishing tools for first determining the orientation of an object before retrieving said object from a well, well bore, casing, and the like. It comprises a base with a plurality of electrode welding tips retractably attached thereto and displaced in pre-selected pattern. Signals are generated as the electrode tips come into contact with the object indicating the orientation of the object. Electrical welding current is then selectively applied to a desired electrode to attach to the object for retrieval.

Abstract: An adjustable ski carrier having a flexible rope with two snap locks on each end. A handle provided on the rope has inwardly extending slots on each end of the handle. A pair of spaced apart apertures made on the opposite side of the handle are adapted to receive the rope from within a handle and extended over the top of the handle on the outside of it. A distance between the apertures is smaller than the distance between the most inward ends of the slots. The length of the rope in relation to the snap locks can be adjusted by extending the loop created by the part of the rope lying atop of the handle so that the device can be used for carrying the skis up the slope or down the slope in a balanced manner, and with the handle being fixed in a certain position by means of the slots in combination with the apertures and the loop. A knot created atop of the handle from the loop can be used to further ensure a fixed distance between the handle and the snap locks on the ends of the rope.

Abstract: A spreader assembly includes a frame and first and second spreader arms each including a pair of parallel spaced-apart beam members. The beam members are equal in length to each other and to the frame and each beam member has vertically spaced-apart rails. The frame also includes first and second pairs of bearings disposed above the horizontal center and on one side of the vertical center of the frame and third and fourth pairs of bearings disposed below the horizontal center and on the other side of the vertical center of the frame. In addition, the first and third pairs of bearings are disposed on the frame closer to the vertical center than the second and fourth pairs of bearings and the second and third pairs of bearings are disposed closer to the horizontal center of the frame than first and fourth pairs.

Abstract: An adjustable windshield for a vehicle is disclosed. The windshield includes a first upright and a second upright disposed in spaced parallel relationship to the first upright. A first channel member is removably connected to the first upright and a second channel member removably secured to the second upright. A windshield is secured adjacent the channel members and extends between the same. A first side member is disposed coplanar with and adjacent to the first upright. A second side member is disposed coplanar with the second upright and parallel to the first side member. A first and a second pull loop are secured adjacent the first and second channel members respectively enabling the windshield to be moved from a first position in which the channel members are connected to the uprights to a second position in which the channel members are connected to the side members.

Abstract: An assembly providing lateral protection for motor vehicles, in which at least one reinforcement, extending essentially in the vehicle longitudinal direction and preferably constructed as hollow bearer, is arranged inside of each of the doors and the lower area of the doors is constructed so as to form-lockingly engage with the door threshold bearers. The reinforcement is so arranged that the orientation of a force flow starting from the reinforcement takes place, in case of a lateral impact in the direction toward the door threshold bearer so that the latter is utilized for the dissipation of impact energy, and particularly when the lateral impact takes place above the same.