Abstract: A concrete form a part of which is made of a fiber-reinforced thermoplastic resin, said fiber-reinforced thermoplastic resin satisfying the following conditions:Tt(C).gtoreq.Tt(M)-1.5.alpha.15.ltoreq.Tt(c)wherein Tt(C) (%) is total transmittance of the fiber-reinforced thermoplastic resin measured at the thickness of top board, .alpha. (% by weight) is fiber weight fraction of the fiber-reinforced thermoplastic resin, and Tt(M) (%) is total transmittance of the matrix resin measured at the same thickness as above.

Abstract: Articles such as molds for thermoplastics, having an insulating layer preferably of resin deposited on the metal core materials, have a second layer of metal suspended in resin deposited on said insulating layer. The second layer may contain metal in platelet form as the inner mold surface, or may contain metal in fiber, whisker or irregular form with a further metal coating deposited thereon to provide resistance to abrasion. In the latter case, the adhesion of the further metal coating to the mold surface is higher than is the case if no metal-containing resin layer is present.

Abstract: A tie for concrete wall form assemblies, adapted to secure individual wall forms together, and to secure horizontal reinforcing members against both horizontal and vertical displacement. Upwardly opening notches accept and position the reinforcing members. The notches are sized and shaped to permit inversion of alternate ties along the form structure, to restrain reinforcement movement downwardly, upwardly and laterally.

Abstract: A hand/foot dual operated lever mechanism for hydraulic jacks includes a short lever-type foot pedal that can be operated by a movable base of a longer lever and that operates a plunger of a pump. A bolt or shaft extends through the foot pedal and the movable base and a side plate of a hydraulic jack. A hidden spring retracts the foot pedal up so that the plunger of the pump can generate a pumping action to lift lifting arm linkages.

Abstract: A fish tape pulling tool useable with one or both hands as desired is disclosed. The tool includes a barrel-like body portion having a slot extending through the body portion that is sized to slidingly receive a flexible tape therein. The tool further includes first and second posts that are attached to and extend outwardly in substantially the same direction from the body portion. The second post is pivotally attached to the body portion and engages a pivotally mounted pawl that is moveable between a first position and a second position by the pivotal movement of the second post. In the first position tile pawl is not in a clamping engagement with the flexible tape and in the second position the pawl is in a clamping engagement with the flexible tape. The tool may also include a cross bar extending outwardly from the body portion with an axis perpendicular to that of the posts and providing an extra gripping surface for tile user.

Abstract: A portable belt clamping and pulling apparatus is provided to grip and pull belt ends together for splicing belt ends of a conveyor belt. A pair of belt ends are clamped between respective pairs of I-beams, the clamped belt ends are pulled together by a come along mechanism, and the free ends of belt between the I-beams are maintained held together in a tension free environment to allow fastening together of the belt ends. The respective I-beams which clamp the belt ends are clamped together by a pair of clamping jaws which are slidable along the I-beams to any desired position therealong to accommodate different belt widths and allow positioning of the clamping jaws adjacent the sides of the belt regardless of the width of the belt. Thus, exerting the tension force close to the edges of the belt.

Abstract: A safety post assembly includes a flat mounting plate adapted to rest on a support surface, an upright post fixed in an upstanding relationship on a central portion of the mounting plate, a pair of elongated narrow anchoring straps having inner portions positioned over a pair of peripheral edge portions of the mounting plate and outer portions extending outwardly from the inner portions and the mounting plate so as to overlie portions of the support surface located adjacent to the mounting plate, and a plurality of fasteners adapted to attach the mounting plate and anchoring straps upon the support surface. The mounting plate has a plurality of holes defined therein along peripheral edge portions of the plate and in spaced relationship to one another. The anchoring straps also have pluralities of openings defined therein, some being in a spaced relationship to one another which matches the spaced relationship between the holes in the mounting plate.

Abstract: The invention relates to a waste heat boiler construction provided in succession to a suspension smelting furnace, particularly a flash smelting furnace, in which construction the dust-bearing gases created in the suspension smelting furnace are prevented from directly flowing from the radiation section of the waste heat boiler into the convection section thereof, in order to reduce the tendency to dust build-ups caused by these gases, and in order to advantageously utilize the total volume of the waste heat boiler and to extend the residence time simultaneously. The invention also relates to a method for intensifying the mixing of gases and for extending the total residence time in the radiation section of the waste heat boiler.

Abstract: A unitized nozzle and top plate assembly for use in a slide gate valve is disclosed which comprises a nozzle having porous, gas permeable walls, a top plate having an opening through its thickness for regulating a flow of molten metal, such as steel, and a recess circumscribing the opening for receiving and securing the discharge end of the nozzle to the top plate. The depth of the recess is at least 50%, and preferably 70-80% of the thickness of the top plate in order to minimize the contact between molten metal and the surface of the top plate opening, which in turn reduces the amount of flow-obstructing alumina deposits which accumulate in this area of the slide gate valve. To prevent leaks from occurring in the system supplying pressurized argon through the porous nozzle walls, the gas coupling that is normally welded directly to the steel can surrounding the nozzle is instead mounted on the end of a steel pipe connected to the can.

Abstract: Cooled rollers for handling and conveying metallurgical and ferro-metallurgical products, moving inside a furnace, each of these rollers being formed by a water-cooled central shaft on which discs are mounted perpendicularly to the said central shaft in order to serve as a support for the ferro-metallurgical products, wherein the said central shaft are provided with thermal insulation shields for avoiding radiative heat transfer between the atmosphere in the furnace and the cooled shaft of the said roller.

Abstract: A spring includes upper and lower runs of wire interconnected by an intermediate run of wire, all of the runs being integrally formed from spring wire. The opposite ends of the upper and lower runs respectively include hooks and coils while the intermediate run includes a coil. The hooks and coils of the upper and lower runs are used to connect the spring to an adjacent spring with the hook of one spring being received about the coil of an adjacent spring. The upper and lower runs are offset above and below the coils of the upper and lower runs respectively to accommodate a helical wire which is wrapped around the upper run for interconnecting runner wires which extend transversely of the upper run. The runner wires have offset portions which are secured to the upper runs by the helical wire. In one form the coils in the upper and lower runs are provided with a projecting recess or ear for receiving the hooks of an adjacent spring.

Abstract: A hydraulic mount assembly includes an elastomeric hollow body connected to a pair of opposed mounting members. A one-piece partition cooperates with the body and forms a closed cavity that is filled with a damping fluid. The partition includes a fluid chamber bounded by spaced upper and lower walls. A resilient flange provided around the periphery of the partition reciprocally supports the partition between the mounting members. An orifice track formed in the partition provides fluid communication between the cavity and the fluid chamber.

Abstract: A method and an article for assembling a compression die spring in a spring pocket formed in a die member includes a retainer having an outer edge that is larger in width than the diameter of the sidewall of the spring pocket in order to form an interference fit with the sidewall and, thereby, retains a spring, a portion of which is spanned by the member in the spring pocket. The retainer has four legs whose distal ends are on a circle whose diameter is larger than the diameter of the pocket sidewall. At least two of the legs are configured to straddle a turn of the spring to allow the retainer to be juxtaposed with the spring with all four legs extending outwardly from the spring to engage the pocket sidewall. In one embodiment, the outer edge of the retainer is turned in order to accommodate variations in diameter of the pocket sidewall.

Abstract: A method for fastening an input shaft and a torsion bar together in a power steering mechanism, and the associated torsion bar. A ball-receiving hole is bored in the end of the torsion bar. The end of the torsion bar is inserted into a bore in the input shaft and a ball is pressed into the hole to provide an interference fit between the shaft and the bar. Subsequently, the peripheral edge of the hole in the torsion bar is elliptically deformed so as to retain the ball in the hole and the bar in the shaft. Since a portion of the opening is slightly diametrically broadened by the ball, the periphery of the portion closely contacts the inner wall of the input shaft, thereby strengthening the connection between the torsion bar and the input shaft.

Abstract: An apparatus for accurately setting the height and depth placement of electrical boxes on wall studs or the like. The apparatus telescopically extends to the required height and a plurality of steps are disposed upon both a top plate and base plate. The steps correspond to various wall covering thicknesses. Proper operation ensures accurate positioning and maintenance of the height and depth settings.

Abstract: A secure storage drawer and an installation clamp for the drawer are disclosed. The drawer is suitable for mounting to a horizontal surface without surrounding cabinetry. Suspension rails which support the slides for the drawer are so designed that when the drawer is closed there are no exposed fasteners. Tampering is thus discouraged. The drawer has a wide shallow preferably partitioned front storage area and a wide deep rear storage area which is large enough to accommodate purses or handbags. The drawer is readily retrofitted to installed furniture. An advantage of the drawer is that it provides generous storage capacity yet permits a seated user to move freely across a front of a desk or table to which the drawer is mounted. The installation clamp permits a drawer to be retrofitted to installed furniture quickly and efficiently. The installation clamp is useful for mounting any drawer supported by suspension brackets.

Abstract: A fabric panel loader for automatically feeding a fabric panel from a stack of fabric pieces to a work station. The apparatus includes a fabric pickup assembly for removing the fabric panel from the stack of fabric pieces and transferring the panel to a smoothing table. The smoothing table receives the fabric panel and automatically moves the fabric panel from the stack of fabric pieces to a predetermined orientation. A panel loader removes the fabric panel from the table and transfers the panel to the work station.

Abstract: A cut sheet feeder for use with an image forming apparatus includes a sheet feed mechanism and a sheet feed unit mechanism. The sheet feed mechanism picks up stacked cut sheets one at a time from a predetermined position and feeds each sheet to an image recording portion. The sheet feed unit is vertically movable relative to the sheet feed mechanism and has a first sheet feed table. The first sheet feed table is located in an upper part of the sheet feed unit and includes a cutout portion for avoiding interference with the sheet feed mechanism when the first sheet feed table moves vertically in combination with the sheet feed unit. A second sheet feed table is located in a lower part of the sheet feed unit and vertically movable relative to the sheet feed unit.

Abstract: An apparatus and method for feeding single sheets of laminated thermographic print media are disclosed. The apparatus includes a traveling vacuum roller reciprocatable between pickup and discharge positions under suitable control so as to engage an end of the sheet near the pickup end and roll the sheet thereabout to a selected first angular position and then releasing the sheet end at such position. The vacuum roller continues to engage the sheet and applies a vacuum to engage the other end of the sheet so as to carry it to a second angular position and then releasing the sheet by releasing the vacuum as the roller approaches the discharge position. A wrapping roller engages the vacuum roller for directing the end of the rolled sheet towards the discharge after releasing it. A lift mechanism near the discharge position lifts the vacuum roller as it approaches the discharge.

Abstract: Apparatus for feeding mixed mail in a mailing machine. The apparatus includes: a feed deck for stacking and feeding a plurality of envelopes; a device for urging the lowermost envelope along the feed deck; a feed roller located downstream of the urging device; a restraint belt system located above the feed roller, the downstream end of the belt system defining a feed nip with the feed roller; and an ingestion roller biased against the feed roller upstream of the feed nip.

Abstract: A sheet-guiding assembly in a sheet delivery system of a sheet-fed printing press includes a plurality of sheet grippers disposed on at least one endlessly revolving chain of a first gripper system for gripping a leading edge of a sheet, and a plurality of after-grippers disposed on at least one endlessly revolving chain of a second gripper system for gripping a trailing edge of the sheet, the sheet delivery system being extended in length and defining a horizontal transport path for the sheet therethrough, the first and second gripper systems being disposed so as to be adjustable in phase with respect to one another at the extended sheet delivery system, the sheet grippers and the after-grippers being attached to the first and the second gripper systems, respectively, for holding the sheet by the leading and trailing edges thereof, respectively, on the horizontal transport path of the sheet over the length of the sheet delivery system.

Abstract: A reciprocating table has a cam follower in the nature of an elongate slot extending transversely of the reciprocating path of the table. This slot receives a cam which is eccentrically mounted on a cam support wheel. The angular position of the cam support wheel is monitored by a rotary encoder and the cam wheel is driven by a bi-directional motor under microprocessor control. The microprocessor controls the motion of the cam such that an angular quadrant centred about the position of the cam defining the most extended position of the table is not used since the table is relatively insensitive to the motion of the cam within this quadrant. In contrast, the opposite quadrant extending about the most retracted position of the table is utilized so that the cam may be moved quickly to retract the table and yet the table is naturally decelerated.

Abstract: In order to make it unnecessary to shift a finishing machine (12) out of a position adjacent to a printing or copying machine (10) the invention provides a transfer device for sets of sheets leaving the printing or copying machine (10) for the set finishing machine (12). The printing or copying machine (10) comprises a door (14) with an ejection opening for the sets and the said finishing machine (12) possesses an inlet side opposite such opening, such door (14) opening toward the inlet side of the finishing machine (12).

Abstract: A hand scanner support and paper guide apparatus is provided for mechanically scanning a thin sheet using two scanners originally designed to be hand-held. The apparatus includes a base assembly, a top assembly, and a hinge assembly connecting the base assembly and the top assembly together. The base assembly includes a base housing which includes a planar upper wall which serves as a flat surface along which the thin sheet is moved. A base scanner unit is supported by the base assembly a spaced distance below the planar upper wall as the thin sheet is moved past the base scanner unit. A guide assembly is connected to the base housing for guiding the thin sheet in a straight path as the thin sheet is moved along the planar upper wall. A drive assembly, a portion of which is housed within the base housing, is provided for moving the thin sheet past the base scanner unit.

Abstract: A sheet sorting and storing apparatus has a stack of bin trays which are brought open at a sheet reception position, but held close at the other position. The apparatus minimizes noises upon sheet reception in a simple mechanism, improving the efficiency of sheet sorting. The bin trays are inclined down or up depending on a position of a sheet discharge device. A desired bin tray is deviated by a deviation mechanism in an approximately horizontal direction so that a spacing in the direction of the tray inclination is enlarged between two adjacent bin trays located at the sheet reception position, while keeping constant a vertical spacing thereof. The deviation mechanism includes a guide in connection with the bin trays to approximately horizontally deviate them by its slant portion connecting upper and lower vertical slots. Each bin tray has a support on its both sides with parallel surfaces to support the next upper bin tray through rollers disposed between the parallel surfaces of the adjacent bin trays.

Abstract: A method for compensating for the slope of a golf green when putting begins with sighting a first line extending from a first point at eye level about two to twelve feet behind a golf ball, over the center of the golf ball, and toward a cup. Then a second line is projected generally downwardly at a first angle with a first plane perpendicular to the green surface and containing the first line, such that the first angle is indicative of the slope of the green surface and the projection of the second line defines a second point on the green surface. The golfer continues by sighting a third line from the second point over the center of the golf ball. In the basic method the golfer completes the process by striking the golf ball along the third line to propel the golf ball toward the cup along a path tangent with the third line. In an extended version of the method, the golfer repeats the projecting and sighting steps at least one more time for greater accuracy.

Abstract: A decomposable organic golf tee is provided, that is made of a compacted mulch material and water soluble adhesive, so that when inserted into the ground it will decompose after awhile to blend into the surrounding terrain. A modified decomposable organic golf tee is also provided, that contains a biodegradable support wall, plant food with grass seeds and a pair of wedges within, to help break up the tee when a downward force is applied thereto, so as to promote the growth of grass.

Abstract: A basketball leather cover having a plurality of raised portions aligned over the periphery, wherein the raised portions are made gradually smaller toward the top, having each a bottom of width within 0.5 mm to 3 mm and a uniform height within 0.5 mm to 3 mm. The raised portions may be made of horseshoe-like shape, annular shape, wave shape, V-shape, S-shape, circular shape, or shaped like fish scales.

Abstract: A multi-dimensional ball-striking paddle consisting of a frame, handles on the frame, a primary ball-striking surface affixed to the frame, and a plurality of secondary balls striking surfaces extending transversely to the primary ball-striking surface.

Abstract: The device tests the pressure and positioning of a player's hand on the grip of sports equipment. The device generates an audible signal of confirmation when a lower threshold of pressure at predetermined locations on the grip are achieved. In many sports a major hindrance to a player in perfecting his or her game is the lack of maintaining a proper grip on the sports equipment. An important aspect of many sports including tennis, racquetball, golf, baseball and hockey is to maintain proper hand position and a firm grip on the sports equipment used. This sports equipment includes, amongst others, the tennis racket in tennis, the racket in racquetball, the golf club in golf, the bat in baseball and the stick in hockey. Proper grip and the ability to properly maintain the correct grip on the equipment is of paramount importance to consistent play.

Abstract: A golf club head assembly includes a hollow shell having an endless inside flange spaced from a front opening thereof, a loop-like shock absorbing member fastened to the inside flange by an adhesive agent, a panel fastened to the shock absorbing member by an adhesive agent to block up the passage through the front opening of the hollow shell, and a striking plate fitted into a front recess on the panel and secured in place by an adhesive agent. The striking plate and the panel can be removed from the hollow shell for a replacement respectively when the adhesive agent is heated to melt.

Abstract: A new and improved table top soccer game apparatus includes a planar simulated soccer field assembly adapted to be placed on a table top. The simulated soccer field assembly includes four passing zones, a first passing zone, a second passing zone, a third passing zone, and a fourth passing zone. The simulated soccer field assembly includes a first goal area and a second goal area located at opposite ends of the simulated soccer field assembly. A plurality of first players is comprised of a first team and a plurality of second players is comprised of a second team adapted to slide along the simulated soccer field assembly. The first players and the second players adapted to be propelled by a squeezing action between an index finger and a thumb, and a projectile adapted to be slid along the simulated soccer field assembly by is bumped by the propelled first players and the propelled second players. The projectile is in a form of a cylindrical shape.

Abstract: A ball game device is formed by an elongated generally upright open end ball receiving tube. In one embodiment the tube has a carom block adjacent its depending end for diverting a ball dropped into the tube in a predetermined lateral direction. In another embodiment the depending end portion of the tube is curved in a lateral ball diverting direction and is supported by a base.

Abstract: A playing card distribution device with microprocessor and scanning circuits. The device has an enclosure for holding a deck of cards, a displacement means powered by a motor with one or more friction attachments that come into contact with the bottom card and cause it to be displaced, a set of photocells to sample the card indicia, a processor to use the sampled card indicia to determine in which direction (or to which holding receptacle) the card is to be displaced. Operation of the system is controlled by a combination of preprinted program cards, ordinary playing cards, and microswitches.

Abstract: A puzzle (20) comprising an array of identical tiles (30), each of which is in the shape of an equilateral polygon and each of which is spaced parallel and spaced apart from adjacent sides of adjacent tiles to define a web of intersecting channels (40) that intesect each other at integer multiples of a web angle. A set of movable grout pieces is provided, each of which comprises at least one elongated segment equal in length to the side of the tiles and has a width approximately equal to the width of the channels (40). Preferably, the set of grout pieces consists of all possible different configurations of between one and the number of sides of the polygons of grout segments, with the segments of the multi-segment grout pieces joined only at their ends at integer multiples of the web angle.

Abstract: A golf putter is provided with a putter head having a unique configuration. This configuration allows the putter shaft to be disposed in a substantially vertical orientation when the putter head impacts a golf ball. The putter head has a body with a flat, forwardly facing, vertically oriented striking face and a flat, horizontally oriented bottom face disposed substantially normal to the striking face. At the body of the putter a neck is formed that extends upwardly and rises above the level of the striking face of the putter body. The neck projects laterally from the body a distance of at least about one inch and above the level of the bottom face of the body a distance of at least about one inch. The neck of the putter head defines a shaft socket that is substantially perpendicular to the plane of the bottom face of the putter head. The shaft is thereby connected to and seated in the shaft socket.

Abstract: A golf course for playing golf in a reduced space while maintaining the continuity of the game and minimizing the time that other players have to wait. The golf course includes elongated first (20), second (40) and third (60) shot areas adjacent to each other. The areas are provided with the teeing area of the first shot area in close proximity to the fairway and approach/putting shot areas thereby minimizing the walking required from the player. The landing grid areas and the fairway and approach/putting areas are quadriculated in order to permit the ready identification of where a ball landed and to transpose to the landing position for the next shot. A slight grading of the landing grid area of the first and second shot areas permits the determination of the ball's position with the unaided eye. The teeing area is raised with respect to the adjacent fairway area of the first shot area.

Abstract: A golf putting device having a perfect surface to simulate a three foot putt on an actual outdoor putting green, enabling a golfer to develop a proper and consistent three foot putting stroke and develop proper muscle memory therefrom. The surface includes an adjustment and a level indicator to enable the surface to be located precisely level on any reasonably flat support surface and hole width restrictors to narrow the hole width while maintaining the hole depth constant. The surface is slightly raised and formed with a nap surface to more accurately simulate the conditions encountered on an actual putting green.

Abstract: The present invention is a portable mechanism utilized to practice a golf swing. It includes a golf ball connected to a tethering line. When the golf ball is driven or otherwise projected a substantial distance, a spindle freely pays out the tethering line though a line guide. After the paying out of the tethered line has terminated, a battery operated motor rotates the spindle to permit for automatic retrieval of the golf ball. A swivel damper allows the golf ball to rotate relative to the tethering line, which eliminates the possibility of the tethering line twisting upon itself, and also assures that flight of the ball is in accordance with the manner in which it was struck. A housing, having open sides or entrances, allows for easy maintenance of the spindle and related components.

Abstract: Disclosed is an apparatus for fixing inclined position of stand plates and the like, in which making a stand plate and the like possible to incline in an optional angle in all directions of 360.degree. and the fixing of an inclined position is made easy and tight. A movable plate 8 is interposed and inserted in a gap 9 provided between an upper plate 4 and a lower plate 5 of a stand frame 2. The center of a stand plate 16 is supported by a spherical joint 17 in tilting movement free on a main column 14 provided in standing state on the stand frame 2. A plurality of spiral shafts 19 hanged down from the back face of the stand plate 16 in conical rotation free are thrust into the stand plate 2 and penetrated through rubber bushes 13 fitted to the movable plate 8. A moving and fixing mechanism 22 for the movable plate 8 is provided at one side of the stand frame 2, with which one end of the movable plate 8 is engaged.

Abstract: A casino card game is disclosing which uses a deck of cards having series of individual cards which can be arranged into an ordered card sequence such as a poker deck. In the play of the game an initial card is randomly selected to start the game. The selected card is used as the starting point in a game sequence that is the same as the card sequence of the deck except that it is started at position in the sequence established by the selected card. The cards are opened one at a time from the deck. As each card is opened its position in the ordered sequence is compared to the what is the next position in the game sequence. If the opened card does not match the card in the game sequence a second card is opened and compared with the next position in the game sequence. If there still is no match a third card is opened and the process repeated until there is a match or the entire game sequence is completed without a match. The house win if there is a match.

Abstract: The various embodiments of the present invention are directed to card-type games which provide a player who has received a wild card during one hand, with the opportunity to reserve that wild card for use in a subsequent hand. Therefore, the present invention provides a player with an opportunity to utilize a wild card when it is most advantageous for him to do so, i.e. when he will maximize his winning payout. One embodiment comprises a gaming device having an electronic touch-sensitive screen, another embodiment comprises a gaming device, while a still further embodiment comprises a game table.

Abstract: An archery target method and apparatus including providing a stationary target for an archer shooting an arrow to initiate a moving target. The apparatus senses a hit on the stationary target and initiates a delay sequence. After counting down the delay sequence which allows the archer to reload a bow with a second arrow, the apparatus begins to move a moving target across a target range allowing the archer to fire at the moving target with the second arrow. The apparatus senses when the moving target reaches the end of the target range and stops the moving target at the end of the target range. The apparatus then resets the archery target to return across the target range when the second stationary target shot impacts the target. At this same time, the timing sequence is initiated again, thus repeating the alternating stationary and moving target shots. This sequence allows the archer both left to right and right to left moving targets as well as stationary target shots.

Abstract: A ball game includes a target area, at least one gun responsive to an operator for firing balls into the target area, and a device for feeding balls in sequence to the gun. This device includes an opening disposed beneath the target area for receiving balls that fall by gravity from the target area, and a turret positioned beneath the opening and having a circumferential array of peripheral openings each sized to receive one of the balls. The turret is rotated about its axis such that balls that fall by gravity onto the turret are urged by centrifugal force toward the peripheral openings. An accelerator has a ball inlet disposed beneath the turret at a position for alignment with each of the peripheral openings in sequence as the turret rotates, and an air inlet connected to a source of air under pressure.

Abstract: Disclosed is a portable sports goal and pitch back assembly of tubular construction including a U-shaped main, generally upright frame with a horizontal top bar and two side posts, and a foot member that extends rearwardly at a right angle from the lower end of each side post. There is also a ground-engaging U-shaped base frame that includes a rear cross member and a pair of laterally spaced side members with front ends that connect to the rear ends of the foot members by way of adjustable, releasably lockable hinge joints that are used to lock the main frame at a desired inclination. In one configuration of the assembly, the main frame is vertical, and a net is mounted about the peripheries of the frames, and the assembly serves as a sports goal. The assembly is adjustable to another configuration for use as a pitch back device, by substantially inclining the main frame, and mounting a tensioned rebound net across the face of the inclined frame.

Abstract: The invention comprises a uniquely shaped sealing element or elements for a packer. In an application using a stack of elements, the upper element is configured so that at least a portion of its inside diameter represents an interference fit with the mandrel onto which it is mounted. A built-in moment within the packing element occurs as a result of the partial interference fit. Additionally, a taper is provided which, in effect, shifts the point of contact of the upper element closer to a central element, tending to better give extrusion support to the central element. The taper also facilitates the creation of a resistive moment which fights the tendency of the upper element to extrude in the upper outermost corner of the upper element, for example. The central element can also be installed on a mandrel with interference throughout its length to create a built-in radial force urging the element back into its original shape after it is expanded and allowed to relax.

Abstract: A disk mountable on a rotating support has one side at least partially covered with an elastomer loaded with magnetic particles to form an encoder while the other side of said disk axially limits an annular chamber. A sealing structure attached to the disk and contained within the plane of a lateral side of a support capable of supporting a non-rotating component of the seal with incorporated encoder is mountable within an annular cavity which is axially limited by the plane.

Abstract: A system for providing a seal between a housing and a shaft is formed of at least two ring members connected to each other by relative diametrical expansion with reduced or eliminated axial resilient deformation. The ring members may be held together by an annular protrusion located within a recess. To eliminate play between the protrusion and the recess, the device may be assembled by heating the recess and inserting the protrusion into the recess while the recess is expanded. The improved system can be accurately assembled, with the ring members located very close to each other. The system has improved oil retention and water exclusion properties.

Abstract: A seal element for installation in an annular groove having a mouth, first and second radial surfaces, and an axial surface therebetween. The seal element has a first radial surface which forms an acute heel angle with the groove first radial surface, and the seal element forms an inner static area adjacent the groove axial surface and first radial surface. Upon installation of a rod and low pressure application, the seal element is compressed into the groove, and the seal element first radial surface is moved into contact with the groove first radial surface. Thus, the seal element prevents contamination from entering into the inner static area. The seal element has first and second angled surfaces forming a high pressure sealing line and third and fourth angled surfaces forming a low pressure sealing line with a stress-relieving radius interconnecting the second and third angled surfaces.

Abstract: A collet attachment apparatus for a lathe machine tool including a collet holder for engagement of a spring collet, a nose collet adapter chuck to be fastened to a standard master chuck for engagement of a collet holder. A rear spindle draw tube adapter fastens to a hydraulic actuator to cause axial movement of a drawbar and exert or release pressure on the spring collet. Various lock ring means are utilized to limit the axial movement of the drawbar and ultimately the pressure on the collet.