Abstract: A two-part housing in which is mounted an elastically stretchable diaphragm dividing the interior of the housing into a substantially peripheral inlet chamber, and a central outlet chamber. The underside of the diaphragm is accessible to the pressure prevailing in the inlet chamber while at least one substantially tangentially oriented passageway connects the peripheral inlet chamber and the central outlet chamber. An inverted cup-like rotor having a hollow shaft is rotatably mounted in the housing, and a tubular projection substantially aligned with the hollow shaft extends inside the rotor. The rotor has an annular peripheral wall, the inner surface of which is provided with at least one discontinuity serving as a race for a ball.

Abstract: A multi-purpose heavy duty centrifugal mill including a vertically disposed housing to which various frangible materials are fed tangentially to a pre-grinder located in the bore of the housing with the pre-grinder adapted to grind the materials to a predetermined size and direct them to comminution devices for further gradation sizing. The housing is open at the top to freely admit air for aeration of putricidable materials and through which a liquid carrier medium may be introduced.

Abstract: Material, such as fabric, is unwound from a bolt (7) in a magazine (6) and deposited on a table (1). The magazine (6) comprises a chain (8) having suspension elements (11, FIG. 2) for receiving spindles (10) of the bolts (7). The required bolt (7) is locked in an unwinding position and held firmly, but rotatably, by supporting means (14) and retaining means (18), all in the form of ball bearings. The bolt (7) is rotated by a drive element in the form of a friction wheel or a conveyor belt which drivingly engages either the periphery of the bolt (7) or the spindle (10). In FIG. 2, the drive element comprises a friction wheel (24) which is biased by a spring (25) into driving engagement with a further friction wheel (19) mounted on the spindle (10).The apparatus enables the web to be deposited on the table free of tension.

Abstract: A kite reel for controlling a line is provided and consists of a handle having a transverse aperture near top, an axle fixed at one end within the aperture of the handle, a spool rotatably mounted onto the axle, a knob for rotating the spool about the axis of the axle as the line is wound and unwound from the spool and a device for stopping rotation of the spool about the axis of the axle.

Abstract: A molded plastic spool for the shipping, storage and handling of a substantial weight of wire which comprises bottom and top end flanges at respective bottom and top ends of a tubular barrel. A radially inwardly extending end plate at the top end of the barrel has two pairs of generally U-shaped finger-receiving handles formed integrally therewith for two-handed manual lifting of the spool.

Abstract: An apparatus guides a cable so that the cable is wound on a drum in a substantially uniform manner. The apparatus includes a rigid elongated support slidable within bearings mounted to a floor. The elongated support is positioned substantially parallel to the axis of the drum. A guide support member is fixedly attached at one end to the elongated support and has a longitudinal axis disposed substantially perpendicular to the axis of the drum. A first guide is positioned proximate a first end of the guide support and a second guide is positioned proximate a second end of the guide support. The first and second guides guide the cable along the longitudinal axis of the guide support. Power to move the guide support is provided by a hydraulic system having a hydraulic actuator that moves the guide support. A cable contact-valve actuating member is positioned on the guide support between the first guide and second guide contacting the cable on two sides.

Abstract: A method of facilitating the unwinding of a wound body of strand includes encompassing the body in a heat-shrinkable stretch membrane and heating the resulting composite to a temperature greater than the temperature at which the strand is to be wound.

Abstract: The blade angle controlling pitch beam servo (26) of a helicopter tail rotor (22) is responsive to a signal manifestation (76) indicative of free turbine engine (20) gas generator speed (78) to provide torque compensation so that the helicopter airframe will not counter-rotate under the main rotor (10) of a helicopter as a consequence of the torque provided thereto by the airframe-mounted engine (20), or in the absence thereof. A trimming embodiment (FIG. 2) provides only sufficient blade angle command (82a) to compensate for that provided by fixed, collective/tail mixing (110-114). Torque compensation tail rotor blade angle commands may be applied through existing stability and autopilot actuators (30-32) or through an additional torque servo (120, FIG. 3).

Abstract: A seat-mounted parachute employs two-way stretch material to prevent the ease cord for canopy glide control from bunching or binding.

Abstract: A one-piece plastic strain relief bushing for power line cords comprises a main body portion with a pivoted locking portion at one end thereof. The main body portion includes spaced-apart parallel walls which grip the line cord such that the line cord in the bushing is in a predetermined serpentine path. The pivoted locking portion snaps fits with an end section of the main body portion to form a slot which completely circumscribes the line cord.

Abstract: A pipe fastener for securing pipes along walls, ceilings or the like, having top and bottom members each having two generally broad, flat sides extending at approximately forty-five degree angles from a middle portion and a base portion, respectively. The four sides have a plurality of spaced, parallel slots with the slots in the top member being selectively engageable with the corresponding slots in the bottom member, thus forming an adjustable enclosure for receiving a pipe. A set screw is provided in the bottom member and disposed perpendicular to the pipe for securing the pipe within the fastener, thus providing both initial and final adjustability features. The pipe fasteners have been designed for use with common attachment devices, such as beam clamps or toggle bolts, and the fasteners can be connected in series for hanging or securing additional pipes along the same route.

Abstract: A height adjustment control arrangement for adjusting the height of a chair seat relative to a chair base in an office chair, includes a lower mounting assembly, an upper mounting assembly vertically displaceable relative to the lower mounting assembly, and a user-operated adjusting assembly operatively connected to the lower and upper mounting assemblies.

Abstract: The device disclosed is a rapid action clamping element for locking, for example, latch elements to the floor in an aircraft provided with slot tracks. The element includes a base element holding two mushroom headed posts, there being a spring biased cylindrical post in between and a crown ring mounts the base element to the latch housing under determination of the degree of projection of the mushroom headed posts. A two position handle permits spring bias protraction of the cylindrical posts for insertion in one of the apertures in the slot track while permitting retention of a retraction against the spring in the other position.

Abstract: A speaker stand for supporting a speaker enclosure on the floor comprising a rigid planar member (11) supporting a waffled cushion pad (12) on the top surface with the pad including peaks 17 and valleys 19. Semiresilient rails (13, 14, 15, 16) positioned to the side of said pad support and stabilize the speaker enclosure such that the pad is depressed sufficiently to form air pockets between the pad and speaker enclosure in the areas of the valleys to attenuate vibratory motion and acoustic sound wave transmissions between the speaker and floor.

Abstract: A mould used for making a racket frame comprises an upper mould piece, a lower mould piece and an intermediate mould piece which cooperate to form a cavity that imparts a racket frame shape with the parting line of the mould pieces lying apart from a plane X-X that passes through stringing holes which will be drilled in the frame formed in the mould, thereby avoiding the performing of the deflashing operation at the portion near the stringing holes and preventing the damage of the fiber reinforcement for the string at that portion.

Abstract: "A poppet valve assembly includes a valving element in the form of a freely slidable poppet, a freely slidable pilot piston having an elongated integral pin extending axially toward the poppet, but unconnected thereto, and an integral elongated spear, with a frusto-conical portion, extending axially in the opposite direction. In a spool valve, the spool is the valving element and has the above elements at each opposite end of the spool, namely a pilot piston with an integral pin unconnected to the spool at the inner end of the pilot piston and an integral spear, with a frustro-conical portion at the outer end of the pilot piston".

Abstract: An electromagnetic valve unit wherein a solenoid coil is assembled within a motor housing in surrounding relationship with a stationary core, a yoke member is fitted at its outer periphery to the corresponding fitting faces of the motor housing and a valve housing, a spring-loaded shaft is slidably supported by a pair of bearings in the stationary core and the yoke member for axial movement, and a movable core is fixed to the shaft to be moved between the stationary core and the yoke member. In such arrangement, a sleeve member of non-magnetic material is coupled over the stationary core and a stepped portion of the yoke member for alignment of the spaced bearings, and the yoke member has an annular shoulder coupled within the valve housing for alignment of the shaft in relation to a valve seat member which is assembled within the valve housing to cooperate with a valve element on the shaft.

Abstract: A seal for a quick disconnect coupling. The seal is made up of several washers, each washer being made of a plastic such as polytetrafluoroethylene (PTFE). The several layers allow the male member to be easily inserted while providing a good seal, and the PTFE breaks in quickly for easy operation.

Abstract: A slide valve for controlling fluid flow, useful especially but not exclusively where high precision and high quality performance are required, as in scientific or medical apparatus and equipment. A valve body, preferably of plastic material, has a channel for receiving a valve slide assembly, the channel providing two surfaces parallel to and spaced from each other. The flow ports to be controlled open onto these two surfaces. The valve slide is an assembly of three members in overlying relation like a sandwich, the outer members or layers being of low-friction plastic material such as "Teflon," the inner or center member being of resilient compressible material (e.g., urethane, or silicone rubber) dimensioned to be under compression when the valve slide is in its channel, so that the resilience of the central layer of the slide serves to keep the outer layers constantly pressed firmly against the body surfaces on which they slide. Ports are formed in the slide assembly.

Abstract: A carpenter's tool for use in construction of wood framed structures includes an elongated handle having one end sharpened for penetration into wood and a bar pivoted to the handle adjacent the sharpened end. A sharpened member at the outer extremity of the bar has a tip extending in the direction of the sharpened end of the handle. An L-shaped hook may also be attached to the handle, preferably on the side opposite the bar side. The tool is useful in enabling one person to adjust the position of a warped or twisted wood structural member with one hand, leaving the other hand free to fasten the member in the correct position.

Abstract: A jack comprising a screw and a nut member, the displacement of which along the screw produces a change in the distance between the active portions of the jack. The jack has a catch which prevents collapse if the nut member, due to worn threads, loses its grip on the screw. The catch is achieved by dividing the nut member into a threaded load-carrying portion and a threaded portion which is axially unloaded during normal thread engagement and which follows the load-carrying portion and serves as a stop if the latter should lose its grip on the screw.

Abstract: A hoist having a motor, gear reduction unit, drum, and an emergency brake on the drum or on a drive-coupled element close to the drum. A brake-actuating mechanism is operated in response to a mechanical out-of-sync detector with mechanical inputs directly from the motor shaft and drum shaft or a shaft coupled to the drum. The detector has an output shaft which signals to actuate the brake actuator when there is a variation in the relative angular velocities between the two input shafts to the detector to set the brake. In one embodiment, the output shaft rotation provided from the variation in the relative velocities of the input shafts also provides the force for applying the emergency brake. In another embodiment, the brake is set by a large force spring which is controlled by a trigger mechanism. In still other embodiments, the mechanical detector is driven by an overspeed or speed-sensitive clutch, and/or by an electrically operated clutch.

Abstract: An electrified fence gate including a tensioned flexible support wire extending horizontally across a fence gate opening, at a height greater than that of vehicles normally intended to pass through the opening, a series of spaced gate wires connected at their upper ends to the support wire and depending closely adjacent but not engaging the road surface, and a fence charger operable to charge the wires with a shocking electric charge. Vehicles, insulated from the ground by their rubber tires, may thus pass freely through the gate without stopping, merely deflecting the hanging wires, but any livestock attempting to pass through, being grounded, will receive an electric shock whenever they touch any of the hanging gate wires, and hence be driven away from the gate.

Abstract: A pneumatic spring for motor vehicles which includes two supports as well as closed spring volumes and two spring surfaces of different sizes which surfaces are subjected to pressure in opposite directions and which are variable as a function of road clearance. The surfaces are supported coaxially against one another with the spring volume being formed by two roll bellows defining a common chamber. Effective spring surfaces of the bellows facing away from each other are supported upon spring pistons of different diameters which are connected together. The spring pistons and a casing associated with the roll bellows form the two supports.

Abstract: In a booklet-making system including a collating conveyor having an inverted V-shaped top profile for receiving folded signatures to be draped thereover, a signature raising plate is provided in the path of movement of the signature to and past an ink jet printing station for raising preferably only one side or panel of the conveyor draped signature to be printed upon and the fold thereof above the conveyor so that the signature is not then supported by the conveyor. Signature backing and aligning apparatus is provided opposite the printing station for receiving the fold of the raised signature or stack of signatures and for acting as a backing support therefor to stabilize and align the same as it moves past said printing station. In one form of the invention this apparatus includes the longitudinal edge of the signature raising plate which engages and forces the raised fold toward a backing wall.

Abstract: A reproduction machine adapted for producing copies of an original on both sides of a copy sheet and forwarding the finished copy to a collator. An inverter-reverser is employed which allows single-sided copy to a waiting station for subsequent processing to allow copying on the reverse side of the sheet to produce duplex copies, and for inverting duplex copies prior to delivery to the collator to provide the required sheet orientation in the collator. A sheet buckle control device cooperates with the inverter-reverser to insure that papers of widely different paper sizes, weights and stiffness will be inverted during the inverting stage of delivery of duplex copies.

Abstract: Letters discharged from a mail-sorting machine are received by a switching flap and pendulum for braking and guiding them towards the bottom of a selected basket-type compartment in order to form a stack. The mail baskets are disposed in interfitting relation and in a number of superposed rows at different levels.

Abstract: An exercising apparatus and method incorporating an open loop system which monitors the activity of an exercising person and directs such activity by displaying the correlation of such activity with a programmed regimen. The apparatus is engaged by body portions of the exercising person operating the apparatus and preferably guides the person in "full range" exercise while monitoring and displaying a representation of work performed during exercising movement. Specific arrangements for using force exerted by one body portion to provide resistance to be overcome by another body portion are shown and described, as is an arrangement for monitoring the use of a number of apparatus so as to monitor a full physiological development program.

Abstract: An improved base includes a base pad member having a flange plate attached to the bottom thereof for cooperation with a flat plate mounted on a post inserted in the ground. The base plate may thus slide onto the ground plate in order to retain the base in position. The base has a special oversized, generally rectangular construction so that a portion of the base projects beyond the first base foul line where it may be tagged by a runner. The remainder of the base is positioned inside the foul line in the normal base position for tagging by a fielder. The separate parts of the base are preferably denoted by distinctive color or design. This configuration promotes safety.

Abstract: A puzzle comprising a box having an open face and a base wall relative to which a plurality of support elements carrying tiles provided with identification means are movable, against the action of resilient biassing means. Stop means retain the uppermost tiles in correspondence with the open face of the box, while the uppermost tiles are movable onto the support elements of adjacent tiles the latter being pressed down against their biassing means in order to obtain configurations which are determined in dependence upon the identification means carried by the tiles.

Abstract: A wheel chair seat comprised of a one piece rigid configuration that offers stable support allowing controlled height seating and having a special cushion comprised of varying density foam sections that assist the user therapeutically in preventing ulcerated areas on the buttocks. Apparatus is provided for pivoting the support with the cushion attached thereto as the wheel chair is folded.

Abstract: The fixing device is cheap and facilitates the mounting of the derailleur on the frame lug. This is achieved in providing on the support of the derailleur a wedging device which is rotatably mounted on the support with a high degree of friction and is adapted to cooperate with the frame lug. The support further comprises preferably an elastically yieldable device which is capable of clipping in the slot of the frame lug so as to center the support.

Abstract: A front fork including an outer cylinder 2 and a slidable inner cylinder 3 with working oil between them has a dust seal 5 and an oil seal 6 in sliding contact with the outer circumference of the inner cylinder. Between these seals there is a guide 7 which is also in sliding contact with the outer circumference of the inner cylinder and which is made of sponge or felt and is impregnated with grease or oil. The provision of this guide increases the lives of the other seals.

Abstract: A trailer is described, whose bed is controllably adjusted in height to facilitate the loading, transportation and unloading of truck tractors and truck units. The trailer is provided with a kingpin to couple with a 5th wheel of a truck tractor having a compressed air-braking system. The trailer bed slopes downwardly, and terminates in a further downwardly sloping ramp section onto which the front or rear wheels of the vehicle to be transported is brought to move in being placed onto the trailer bed. An actuable switch is provided to cooperate with the air-braking system in filling an expandable air bag with the braking system's compressed air when it is desired to raise the trailer bed, or to bleed the compressed air therefrom when it is desired to lower the bed.

Abstract: The present invention relates to a foldable multifunctional carriage, particularly for use in performing cleaning and maintenance tasks in hospitals, of the type comprising rollers on which are mounted a rigid portion and a foldable framework which can be placed either in an operative unfolded position or in an inoperative folded position.The carriage is characterized in that said rigid portion consists of a chassis (2) horizontally resting on said rollers (3), and in that said framework (1) has a pair of arms (4, 5) pivotally mounted on a front portion of said chassis (2), a U-shaped frame (7) being pivotally mounted between said pair of arms so as to form a strut adapted to abut against a stop (12) integrally formed with said chassis (2) to secure said framework (1) in its unfolded position, said pair of arms (4, 5) carrying, therebetween, if desired, one or more support members (8, 36, 37) for articles or utensils to be carried on the carriage.

Abstract: A lateral control link of an independent rear wheel vehicle suspension is provided at its inboard pivot connection with an adjustment lever swingable on a support bracket of the vehicle chassis by insertion of a hand tool to facilitate manual adjustment of the vehicle wheel toe-in setting.

Abstract: A ski pole handle having both a finger shield and a thumb shield for restraining the thumb against backward movement relative to the fingers.

Abstract: A device for binding the marginal edge of materials is provided which takes the form of a continuous section of resilient material. The section of the device includes a pair of legs on which the closing force can be released to allow the acceptance of the materials, a spline around which the legs pivot to close over the edge of the materials to hold them securely by the material engaging ends of the legs when the closing force is engaged and a latch to lock the legs closed. In certain embodiments one leg is fixed and the other leg pivots to accept the materials and to close over the edge of the materials.

Abstract: This multiple ply assembly yields individual invoice/itinerary sheets and a traveler's ticket-holding folder with the invoice/itinerary information printed directly on the flap. Invoice/itinerary information entered on the outer ply is printed on the area corresponding in size and orientation on all plies. When this corresponding portion of the next to last ply is detached, yielding an additional invoice/itinerary sheet, the remainder of the next to last ply forms a pocket on one corner of the last ply by means of adhesive. The portion of the last ply corresponding in size and orientation to the outer ply forms the flap of a ticket-holding folder, of which the aforementioned pocket is a part.

Abstract: A pipe connection assembly for connecting pipes transmitting a fluid as provided. A feature of this invention is the fact that it prevents any fluid escaping from the connection from traveling along the pipes and damaging any machinery that may be located along the pipes. The pipe connection assembly is comprised of first (or upper) and second (or lower) packing assemblies that radially surround the pipes. In certain embodiments, each of the packing assemblies is comprised of a top packing ring, a packing and a packing base ring, each packing being encased by the two complementary packing rings and the pipes when the packing assemblies are properly assembled. An opening is formed between the second top packing ring and the first packing base ring. The pipe assemblies are located with respect to the pipe interface such that any escaping fluid will contact the first packing assembly and the opening before contacting the second packing assembly.

Abstract: A knotter comprising a billhook operable to form a knot in flexible material such as twine and being rotatable through first and second cycles during the knot tying operation, the billhook having jaws which can be opened or closed. Means are provided which are contactable by the billhook during both the first and second cycles of rotation thereof but which are operable to maintain the billhook jaws closed during the first cycle and to open and close the billhook jaws during the second cycle. The means may be in the form of a cam and releasable locking means may be provided to lock the cam against rotation during portions of the first and second cycles of billhook rotation.

Abstract: Apparatus for securing a swinging end of a hinged door in a closed position is disclosed. A slidable latch assembly including spaced rollers for engaging angled contact surfaces extending from a door are all arranged with appropriate spacing to secure the door in position upon slidable displacement of the latch assembly. A complex pivoted latch handle is utilized to appropriately displace the latch assembly for either securing or opening the door.

Abstract: The sliding deadbolt of a security door lock internally mounts a latching device engageable with the coupling element on the end of a flexible guard element retracted within a jamb-mounted, strike housing into which the deadbolt is projected for door locking purposes. Retraction of the deadbolt permits opening of the door to a limited extent by extension of the guard element from the strike housing in the jamb. Continued retraction of the deadbolt effects release of the latch device and retraction of the guard element.

Abstract: The disclosure relates to a secure locking mechanism for a sliding door or window. It comprises a toggling pair of bars, one of which is attached to the door frame and the other to the casing so that the bar lies across the fixed pane. The first bar is an inverted channel which encloses a portion of a second preferably solid bar. A pair of longitudinally side by side holes is drilled through both bars in the overlapping portion. The bars are joined in this area by one or more pins inserted through the holes. One hole is located adjacent to the distal end of the solid bar so that it can act as a pivot when the bars are united by a pin passing through this hole. The bars can then toggle to permit the door to be opened. If both holes are pinned or if a single pin is placed so that it passes through the other hole in the solid bar the assembly is securely locked.

Abstract: A car body guard comprising a flexible rubber strap rolled up in a housing which is mounted in one of the wheel wells of the car. The strap may be unwound from the housing and extended across the side of the car and its free end fastened to an attachment member in the other wheel well on that side of the car. A return spring holds the strap taut along the side of the car and rolls it up again in the housing after it is detached from the attachment member in the other wheel well.

Abstract: The golf ball retriever includes an inverted, generally U-shaped frame having a pair of opposed legs connected by an intermediate reach. A pair of transversely opposed, generally U-shaped bail members are pivotally mounted between the opposed legs of the frame. The bail members are engageable with a stop provided on at least one of the frame legs and which defines a normal position for the members. The bail members are freely pivotal from the normal position to pass a golf ball therebetween into the retriever, and thereafter under their own weight to return to the normal position to entrap the golf ball in the retriever.

Abstract: A carrier for transporting paintings and other substantially planar artwork comprises a pair of generally parallel elongated support members mounted upon a generally transverse guide member for relative adjustment toward and away from each other to adjust the distance to conform to the corresponding dimension of a piece of artwork to be transported. Retainers are provided for retaining the support members in the adjusted position to retain the artwork in place. The support members each include a seat for preventing lateral movement of the artwork. A protective member is provided, the protective member being hinged to the first guide member to afford relative displacement of the first guide member and the protective member between an open and a closed position. When the protective member is in the closed position, it is held parallel to the artwork with sufficient clearance therebetween to avoid impingement by the protective member against the adjacent surface of the artwork.

Abstract: A rear seat of an automobile, capable of selectively securing thereto with either one of a separate type seat back divided into two sections in the widthwise direction of the automobile, the respective sections being forwardly foldable independently of each other, and including a frame which includes reinforcement members to reinforce the outer peripheries of the main panels, or a bench type seat back being integral in the widthwise direction of the automobile and forwardly foldable, wherein a frame of the bench type seat back is of such an arrangement that the right and left main panels in the separate type seat back are integrally connected through reinforcement members to each other in such a manner that the two main panels are parallelly arranged on the right and left.

Abstract: A support structure for a vehicle includes a first support member positioned below and secured to the underside of the vehicle rocker panel. In one embodiment, a portion of the first support member extends laterally outward from the rocker panel and is secured to an exterior vertical portion of the rocker panel. A decorative member is secured to the side of the vehicle and is adapted to overlie a portion of the first support member. A second support member is alternately secured to the interior side of the rocker panel to increase the structural strength of the support structure.

Abstract: A tilting type sunroof comprises a roof panel supported with a lift link which is pivotally connected with a shoe. An arm of the lift link is engaged with an inclined groove of a stationary guide. The arm slides along the inclined groove to rotate with a linear movement of the shoe. The roof panel is driven to open or close a roof opening by the rotation of the arm. The inclined groove of the stationary guide has a portion of a large inclination and a portion of a small inclination such that a shift amount of the panel with respect to a shift amount of the shoe is large where the panel is substantially opened, while small where the panel is substantially closed.