Abstract: An illusion creating device comprises a support structure having a support edge encircling an aperture and a flat element. An elastic membrane is supported on the support edge and is stretched over the flat element to a degree wherein a supporting segment of the membrane underlies a portion of the element and supports it. The flat element is viewable through the membrane so as to appear to be disposed on top of the membrane. Pressing the stretched membrane over the flat element causes the element to be released from the membrane, thereby creating the illusion that the flat element passed through the membrane.

Abstract: An exercise bar, for use by weight lifters in performing wide grip bench presses, which comprises a straight horizontally elongated relatively long central section of uniform diameter. The bar also employs two like straight downwardly and outwardly extending short inclined sections. The diameter of the inclined sections is equal to that of the central section. The inclined and central sections lie in a common plane. The upper end of each inclined section is integral with a corresponding end of the central section. Each inclined section intersects the central section with a like included angle. Each inclined section is adapted to be grasped by a corresponding one of the hands of the lifter when the bar is in use. The bar also employs two like straight horizontally elongated end sections of intermediate length which fall along a corresponding horizontal line and lie in the common plane. One end of each end section is integral with the lower end of the corresponding inclined section.

Abstract: The apparatus comprises a wall (7) from which tennis balls (13) fall into a chute (8) fitted with lateral ramp sections (15, 16). The balls are carried along the chute by an endless conveyor (14) fitted with ball-entrainment (14). The balls are guided down a sloping section (18) at an end of the chute (14) by guides (19) and are then sucked along a flexible tube (11) to a rigid conduit (26). The conduit (26) has an end (21) of enlarged section fitted with a hinged closure flap (22) and an underpressure generating device (23).

Abstract: An ultra light weight golf club shaft tapered in a step pattern having a reinforced wall at the region where maximum bending moment occurs during play.

Abstract: A game device that includes a foldable, large gameboard with playing spaces marked out thereupon, a set of various different colored playing pieces for movement on the gameboard, and several shooters for propelling the playing pieces toward the gameboard spaces.

Abstract: This invention relates to a horse racing lottery game. The apparatus for the game comprises a racetrack having a plurality of starting positions and a finish line, a plurality of game pieces supported on the track and being movable therearound, there being less game pieces than players playing the game, and a plurality of groups of tickets corresponding to the game pieces such that each group has a plurality of tickets each having indicia corresponding to only one of the game pieces and indicia enabling each ticket to be distinguished from other tickets of the same group. Each player selects tickets of his choice and places the selected tickets of each group in a separate container pertaining to the respective game piece. The tickets are then shuffled, and one ticket is drawn at random from each container, thereby indicating which of the players is assigned to each of the horses running in the race.

Abstract: The disclosure is of a game apparatus in which two players manually move counters on a board having specific figures. The object of the game is to have five of a player's pieces placed colinearly along a diameter of the figure.

Abstract: A game apparatus for use in playing a game which includes a plurality of distinct playing pieces, a game board and dice for determining by chance which pieces are available to be played and where on the game board they may be played.

Abstract: Apparatus for target practice comprises a parallelpipedal body containing a motor, and a drive shaft emerging from the body and carrying a crank. Swingably mounted on the body is a shaft having cross arms thereon, one of which is connected by a link to the crank and the others of which can selectively receive a target for holding the target swingably or pivotally in positions spaced apart 90.degree.. A switch for controlling the motor coacts with the crank such that rotation of the crank is limited to 180.degree., which in turn rotates the arm bearing the target through 90.degree.. Depending on the position of the body and the selection of a socket for the target on the rotating arm, the target can be swung or pivoted, to and from any of a variety of positions of orientation.

Abstract: The invention provides a novel gasket for electric shielding composed of an electrically insulating rubbery elastic material as the continuum or matrix and a conductive phase dispersed therein. Different from conventional gaskets for electric shielding in which conductive filaments or particles form the dispersed phase, the inventive gasket for electric shielding comprises flakes of a conductive material as the dispersed phase in the matrix and the flakes are in orientation in such a manner that the flat surfaces of them lie substantially perpendicularly to the contacting surfaces of the gasket. Owing to this unique internal structure, the inventive gasket for electric shielding is very efficient in absorbing the energy of the electric fields or electromagnetic waves.

Abstract: A well sealing system for blocking fluid flow through an annulus partially defined by a tubing string disposed within a casing string. A metal seal ring is compressed and radially expanded to form a primary metal to metal seal between the exterior of the tubing string and the interior of the casing string. A production well packer and packing rings are carried by the tubing string to form secondary elastomeric to metal seals between the tubing string and casing string. Backup rings are provided to control the extrusion of the metal seal ring while it is compressed and radially expanded. A protective cylinder is also provided to prevent damage to the packing rings and the metal seal ring while the tubing string is lowered through the bore of the casing string. The protective cylinder assists in setting the production packer while the metal seal ring is being compressed.

Abstract: A hydrodynamic shaft seal for use under both static and dynamic conditions features a sealing face having one static sealing surface at the non-liquid side of the seal and a dynamic sealing surface having a plurality of angular vanes forming chambers open to the liquid at the liquid side of the seal. An annular coil spring biases the static sealing surface into contact with the shaft under static conditions and controls its spacing under dynamic conditions during which the vanes propel liquid toward the liquid side of the seal.

Abstract: A tubular chuck collar with a plurality of teeth circumferentially arranged around the base thereof to form a toothed track is fitted over the inner cylinder of a conventional chuck assembly in spaced relationship to the outer cylinder of the chuck assembly such that the toothed track of the chuck collar opposes the conventional toothed track on the outer cylinder. A securing means releasably secures the collar to the inner cylinder. The toothed track of the chuck collar includes at least one section oriented at an incline relative to the toothed track on the outer cylinder, whereby a bladed instrument such as a screwdriver may be inserted into the gap between the collar and the outer cylinder to simultaneously engage the teeth in both toothed tracks. The screwdriver so inserted is twisted about its longitudinal axis to simultaneously apply opposing torques to the collar and the outer cylinder.

Abstract: A power operated jaw chuck with clamping jaws which can each be operated by a chuck piston movable axially within a bore in a chuck body via a separate wedge-hook transmission comprising wedge surfaces inclined in the axial direction which are formed in the circumferential direction in pairs on the chuck piston and on a wedge hook. In order to obtain higher load-bearing capacity of the wedge hook transmission without increasing the required space, the wedge hook is formed with a T-shaped cross section having a continuous wedge surface for internal clamping on the radially inner base surface and having a web which simultaneously serves as a connecting member with the rear side of the clamping jaw. Ledge-shaped wedge pieces are formed on the chuck piston on both sides of the web.

Abstract: A fuel tank arrangement for a tractor which stores its fuel in an auxiliary tank and a main tank that are spaced apart in the tractor. The tractor's engine receives its supply of fuel from a fuel pump after it has passed through a primary fuel filter. The fuel tank arrangement incorporates a first line fluidly connecting the main tank to the fuel pump. The arrangement also utilizes a main vent to connect the forwardmost portion of the upper section of the main tank to the atmosphere, and an auxiliary vent to connect the rearwardmost portion of the upper section of the auxiliary tank to the atmosphere. The next element of the arrangement is a supply system which requires all of the fuel to pass through the main tank to reach the fuel pump. The supply system fluidly connects the bottom section of the auxiliary tank with the forwardmost portion of the top section of the main tank through a second line.

Abstract: A snowmobile support dolly has a pair of two-wheeled H-frame ski dollies and a caster wheeled H-frame track dolly for supporting the steering skis and drive track, respectively, of a snowmobile. The ski dollies clamp to the bottom of the steering skis, and the track dolly has spaced transverse members which hold it in place between the transverse ribs of the track, so that the snowmobile is easily wheeled about.

Abstract: A brake assembly for skateboards which allows smooth, safe, trouble-free braking. The assembly includes a pivotal, wheel-engaging brake plate and a depressible foot-operated pedal coupled to the plate for selective shifting of the latter into frictional, braking engagement with the wheel. A pair of debris-clearing brushes are also mounted on the brake assembly and assist in braking when the pedal is depressed. A secondary, stationary brush member is also mounted adjacent the remaining wheel assembly for debris-clearing purposes.

Abstract: This invention is an attachment apparatus operable to interconnect two bicycle members in a side-by-side relationship. The attachment apparatus includes a main support coupling means to interconnect the bicycle members and a steering coordinator means to interconnect the steering mechanism on each bicycle member. The main support coupling means is connected to each steering post housing on each bicycle member to permit a constant distance between each bicycle member while permitting relative rotation therebetween. The steering coordinator means interconnects the turning forks on each bicycle member to assure joint and same turning of each front wheel member when steering the bicycle members.

Abstract: An elastic lateral support with supporting wheel for children's bicycles comprising a single resilient part releasably attachable at one end to the frame of the bicycle and containing a supporting wheel at the other end, said lateral support in the mounted state at a tilting moment of 15 Nm exhibiting an elastic deflection of at least 20 mm, preferably at least 40 mm. The lateral support is attached to the frame of the bicycle with releasable clamping support composed of a inside clamping holder and an outside clamping holder bolted together at one end by the wheel nut and on the other end by a clamp bolt.

Abstract: An apparatus for coupling a tractor, a dump trailer and a dump truck wherein the dump trailer is adapted to be selectively towed by the tractor or by the dump truck. A draw bar having a trunnion and a hole at the leading end portion is pivotally mounted on the dump trailer. The trunnion is adapted to be engaged with a gripper mounted on an arm member of the tractor so as to enable the dump trailer to be towed by the tractor. The hole of the draw bar is adapted to be engageable with a coupler pivotally mounted on a rear axle of the dump truck thereby allowing the dump trailer to be drawn by the dump truck.

Abstract: A sub-chassis channel member having a web portion underlying a ski and side portions straddling the sides of the ski is connected to a chassis member overlying the ski. A snow traction cleat located rearwardly of the sub-chassis member and having a web portion underlying the ski is pivotally supported by the chassis member to trail in contact with the snow surface during forward movement and to penetrate the snow surface a limited amount upon rearward movement.A resilient deflector plate extends forwardly and upwardly from the bottom of the web portion of the sub-chassis member to press against the bottom of the ski and to ride over the surface of the snow compacted thereby to prevent build-up of the snow at the leading edge of the sub-chassis member and the traction member.Ice traction blades are pivotally supported by the sub-chassis member to extend parallel to the sides of the ski and have sharp ice penetrating points which trail during forward ski movement.

Abstract: A sole-support mechanism having a stepping plate for the heel of a ski boot which is urged by a spring-loaded ski binding part, in particular by a heel holder, toward a front jaw which forms a ski-fixed support in longitudinal direction of the ski, and is supported on a guide plate, which plate is movable in longitudinal direction of the ski through the force of at least one thrust spring over a holding rail or the like, wherein the upper side of the sole-support mechanism consists, if desired, of a material which has a low friction coefficient or has a layer of such a material.

Abstract: A safety ski binding having a front jaw and a rear jaw, wherein at least the rear jaw is movably guided in longitudinal direction of the ski and is intitially resiliently biassed toward the ski boot. A stop is operatively associated with the rear jaw for limiting the movement of the rear jaw in direction toward the tail of the ski. The front jaw is movably guided against a spring force in direction toward the tip of the ski.

Abstract: A toe jaw for a safety ski binding having a ski boot sole hold-down mechanism which is pivotal about an axis extending generally perpendicular with respect to a base plate secured to the upper surface of a ski. A support part is provided on the hold-down mechanism and is adapted to engage the frontmost portion of the sole of the ski boot. The support part is pivotal about an axis to accommodate a movement of the ski boot away from the toe jaw upon a release of the ski boot from the ski. The spring force utilizable for returning the sole holder to the original position is the same spring force which effects a returning of the support part to the original position thereof.

Abstract: A front wheel suspension mechanism for a vehicle having two front wheels. The suspension mechanism includes two transverse leaf springs mounted on a front portion of the frame of the vehicle and vertically spaced apart from each other, supports for supporting the front wheels, and elastic members for connecting both ends of the leaf springs and the front wheel supports.

Abstract: In a seat belt device including at least a belt for constraining the upper half of the body of a seat occupant, the shoulder belt, when in occupant constraining position, is guided so as to prevent the end portion of the belt adjacent to the shoulder of the occupant from bearing against the neck or the head of the occupant.

Abstract: A seat belt tensioning device having a piston return stop device including a tapered member with an inclined surface rising toward one end which is slidably disposed within an axial hole of a piston and is connected to the piston through a connecting member breakable by a predetermined tension force. The other end of the tapered member is connected with a seat belt. Stopper members are slidably disposed within radial guide grooves of the piston and at their outer ends are slidably in contact with an inner wall of a piston cylinder while their inner ends are in contact with the tapered member.When the tension force of the seat belt reaches a predetermined value at an urgent time, the connecting member is broken and the tapered member is moved within the piston in a direction reverse to the travelling direction of the piston to push the stopper members toward the cylinder wall. Then the outer ends of the stopper members cut into the cylinder wall so that the return of the piston is stopped with certainty.

Abstract: A body has a base plate having an adhesive connection to a ski and especially with its scoop-like tip region, the adhesive appearing between an additional attachment plate and the ski. Between the attachment plate and the base plate of the body there is provided an elastic connection which is formed by a tongue-like part produced at the base plate of the body, this tongue-like part being resiliently bendable.

Abstract: A wrist strap and buckle arrangement is constructed as a separately removable member to be contained within a cavity space formed in the handle of a ski pole. One end of the wrist strap is permanently secured in a frame portion of the buckle and the other end of the wrist strap is freely lockable as desired between a locking lever of the buckle and the frame portion. An intermediate portion of the wrist strap extends exteriorly of the handle through a slot leading from the cavity space. The wrist strap is free of any adjustment means therealong which could gall the hand of the skier. The buckle locking lever is positioned in the open end of the cavity space so that the adjustment operation is easy to carry out.

Abstract: A handle for mounting directly on the upper end of a ski stick comprising a fitting element, a curved extension extending above the fitting element, the curved extension having a cavity space containing a buckle for longitudinally, adjustably fastening a wriststrap. An outlet for the wriststrap is in a convex side of the curved extension. The convex side extends up above the outlet to provide a relatively high face surface, the direction of the center axis of the curved extension forming an angle of between 15.degree. to 40.degree. with respect to the center line of the stick portion.

Abstract: A pair of ski poles, each having a shaft of two portions releasably connected to each other and to a unique grip. Each of the two portions of the shaft telescope one within the other to any one of a number of predetermined positions. The pair of ski poles are further adapted to disconnect from the grip and allow portions of the shaft to be reconnected to the other shaft, forming a relatively longer avalanche probe. The grip has an arresting spur thereon to assist a skier in stopping his momentum after a fall on a hill.

Abstract: An elbow type of fluid fitting and method for chucking for machining same wherein the fitting includes a body having a pair of fitting branches extending outwardly thereof angularly of each other. The body also includes a gripping boss extending a short distance outward thereof oppositely from one of the branches and substantially coaxial therewith. This boss facilitates chucking of a fitting blank at three separate spaced apart locations for subsequent machining and processing into the finished fitting. One of these locations is at the one branch adjacent the body and the other location is at the gripping boss to provide an increase in stability of the fitting blank during machining.

Abstract: The invention relates to a pipe section of the type which is manufactured by means of molding and which is provided with sealing surfaces for sealingly connecting the pipe with another pipe section. An annular sealing ring is connected to the pipe near one end thereof having an inwardly projecting portion and a further portion located axially inward of the first mentioned portion relative to the end of the pipe. The sealing ring has an inwardly facing pocket and a protector for the surfaces thereof comprising an annular element in contact with the pipe which is easily removable from the pipe at the place where the pipe is to be used. The pipe is molded against the annular element during manufacturing thereof.

Abstract: A disconnectable union for fluid piping is provided in which a pre-load dependent first seal between disassemblable union members is coaxially related to a second seal operable independently of the pre-loading of the first seal such that the second seal independently contains any fluid that comes in contact with it even if such fluid contact is due to diminution of the pre-loading of the first seal. Various flange joint configurations and seal constructions are disclosed for both plastic lined and unlined metal pipe.

Abstract: The invention relates to a rotatable swivel for one or more conduits said swivel comprising a plurality of annual chambers (4) formed by identical inner and outer wall portions (3 and 2 respectively), said wall portions (3,2) being rotatably supported with respect to each other by means of inner and outer bearing race ways (7 and 10 respectively) which are connected to an end face of the corresponding inner and outer wall portions (3,2). The outer wall portions (2) may be interconnected by means of bolts (15) and the inner wall portions (3) by means of cams (19) engaging into recesses (17, 18) or a ring (16) located at the level of the bearings (6) present between adjacent chambers (4).

Abstract: The individual tubes are separated from each other at the end of a cable composed of a tube bundle, by means of a cap member having a neck in heat shrink fit on the cable jacket and having an end plate with sleeves through which pass groups of tubes, a plurality of further members have their respective necks heat shrunken onto the sleeves, and individual sleeves on the further members single out and separate the individual tubes of the cable, the latter sleeves being also mounted on the tubes in heat shrink fit. Further features relate to thermal insulation form stability, and pressure proofing of the construction, all destined to seal off the interior of the cable while permitting feed through of the individual tubes for physical fan-out or fan-in.

Abstract: A plastic conduit for protecting and directing electrical and telephone cables, employing elongated barrel portions with lipped ends and a snap-on coupling collar. Partition walls intergral with the conduit walls are used to divide the internal passageway of the conduit section. The partition walls are contoured at each end to interlock with the ends of adjacent conduit sections to provide column-like support. Gasketed ends seal the joint between the conduit section and coupling collar. Flanged ends index the coupling collar and limit axial movement and deflection. Interrupted peripheral lips and an interrupted annulus within the coupling collar provide for differential flaring out of the collar ends and corresponding necking-in of the conduit ends as the two are telescoped together. The lipped edges are received within the annulus of the coupling collar and snap fit into position. The snap fitting lips lock the conduit section to the coupling collar.

Abstract: An assembly including a series of tubes attached to a base tube sheet wherein the tube sheet is provided with relatively light corrosion resistant material at both sides, the sheet then being drilled through, corrosion resistant sleeves placed in the holes drilled, and corrosion resistant tubes located and fixed in the sleeves by rolling and welding.

Abstract: An end fitting for a flexible metallic conduit comprises a tubular body having an external thread to enable the body to be screwed into an end of a conduit, a tubular sleeve having an external thread to enable the end fitting to be threadedly mounted on a support, and a rotary tubular collar threadedly mounted on a stationary projection of one-piece with the body. The collar has an inner circumferential tapered surface which bounds a wedge-shaped annular space with the externally threaded end of the body. The conduit is received in wedged, moisture-resistant engagement in the space. A stressed O-ring seal between the sleeve and the stationary projection provides another moisture-resistant seal.

Abstract: A first section of cylindrical sheet metal duct has a end roll-formed to define an outwardly formed flange, a central cylindrical flange whose axis is parallel to the cylindrical wall of the duct and which is radially outwardly offset from the cylindrical wall, and an inwardly formed end flange. This configuration defines a male section and the end of a mating section of cylindrical duct is formed to define a female section having an outwardly formed flange extending from the cylindrical wall and a cylindrical end flange whose axis is parallel to the cylindrical wall and radially outwardly offset from the cylindrical wall with a diameter slightly greater than the diameter of the corresponding cylindrically offset flange of the male section such that the male section can extend into and be seatably received by the female section.

Abstract: A connecting piece capable of providing a connection with supply lines carrying a gaseous or fluid media. One end of the connecting piece has a nonsymmetrical connecting member adapted to encircle and embrace the end of a supply line inserted thereinto. The other end of the connecting piece has a threaded member. The two parts are assembled by inserting one into the other. An annular quick release lock consisting of an annular groove in one of the connecting members and a continuous annular projection on the other connecting member enables the two parts to be connected together. A central opening extends through both parts. Additional structure is provided on the parts to provide a visible indication to the user that the two parts are fully connected together.

Abstract: This quick connector coupling for semi-rigid hose or tube comprises a hollow body, a retaining ring and a push member, a movable abutment member limiting the opening movement of lugs formed in the retaining ring is resiliently fitted in the body by virtue of an elastic ring disposed downstream thereof.

Abstract: A fitting for connection to a metal plain end pipe includes a generally cylindrical socket section sized to receive and cradle a pipe end portion, an annular seal in the socket section for forming a fluid-tight connection between the pipe end portion and fitting, and a locking device extensible into the socket section for securing the pipe end portion to the fitting. The socket section has a first bore extending from an exterior surface substantially through the socket wall and a coaxial, second bore of lesser diameter than the first bore extending the remainder of the way. The locking device includes a shaft having a head end and an opposite tip end for extension through the first and second bores and inwardly of the socket wall interior surface for engagement with a wall of a pipe end portion positioned in the socket section. A ring seal around the shaft engages a side wall of the first bore for providing a fluid-tight engagement between the shaft and the side wall.

Abstract: A means for connecting together sheet metal ducts, e.g. forced air heating ducts, in end-to-end relationship, comprises hollow, roll formed flange members which extend along the edges of adjacent duct ends, and L-shaped corner pieces the limbs of which can be inserted into the ends of the flange members to complete the joint at the corners. A sealing agent or gasket is located between sets of flange members and corner pieces. The flange members have planar side end surfaces for sealing reception of the gasket, and lower protuberances, into which the ends of the metal ducts fit, the protuberances being arranged to bite into the gasket to improve the seal. The corner pieces have laterally offset portions, allowing the raw edge of the duct, at the corners, to project forwardly of the side surface of the corner piece, and hence to bite into the gasket at the corners to improve the seal. Channel shaped cleats are provided to assist in the attachment of pairs of profiles on adjacent end arranged ducts.

Abstract: A method and apparatus for aligning and fastening open ended tubular members, such as pipes, tanks, and other cylindrically shaped fluid enclosures, which have radially outwardly protruding flanges extending around the circumference of the open ends. The flanges have flat mating faces and tapered back sides defining conical surfaces which converge radially outwardly when the flanges of two tubular members are abutted. The fastening device comprises a ring, a plurality of rotatable and radially movable clamping spools retained on the ring, and a like plurality of bolts on the ring for moving the clamping spools radially inward. The rotatable clamping spools have a cylindrical shank and rim segments at the shank ends which extend around only a portion of the shank circumference.

Abstract: A lock for motor vehicle doors is described. The lock comprises a striker member arranged for engagement and disengagement by means comprised in a mechanism of said lock, the mechanism is supported by a first plate, and the striker member and means are disposed on a part fixed relative to the door and on the door respectively, or vice versa.The main feature of this lock is that said means comprise at least one pair of engagement members for said striker which are rotatable on pins, and the disengagement load exerted between said member and said means is opposed only by component forces passing substantially through the axis of said pins.

Abstract: A door lock mechanism having a relationship with the presence and absence of power supply to a source of heat, comprises a door switch, a door circuit activated in association with the opening and closing of the oven door, a cook circuit, first means for controlling the activation of the cook circuit, and second means responsive to the door switch for controlling the opening and closing of the oven door to thereby control the activation of the door circuit, wherein the second means is prevented by the first means from controlling the opening of the oven door while the first means is activated to provide the activation of the cook circuit.

Abstract: A cable lock for doors in which a loop at one end of a cable is attached by a bolt or screw to a building wall adjacent to a door and a larger loop at the opposite end of the cable is applied over and around a doorknob to limit the extent to which the door may be opened. In one embodiment of the lock, a metal sleeve encircles the major portion of the cable between the end loops. The metal sleeve increases the resistance of the device to cutting by bolt cutters, saws, and other burglary tools. A sleeve of resilient material encircles at least part of the cable between the end loops and serves to protect the door and door frame from damage upon contact of the cable therewith.

Abstract: An improved door latch assembly having a striker plate with an adjustable locking notch. The adjustable locking notch is provided by an adjustable slide member mounted in sliding relationship to the striker plate and having threaded adjustment means.

Abstract: In an exemplary embodiment, a bumper with a handle contour is supported on a rotatably mounted lever which is arranged to actuate a switch in response to deflection of the bumper. This lever is coupled with an angle lever via a catch and the angle lever is deflected upon impact against an obstacle situated below the bumper area and, thereby, rotates the lever to actuate the switch. The disclosed arrangement serves for increasing the operational security in smaller transport cars for transporting files and goods of similar weight.