Abstract: A motor vehicle screen wiper comprises a screen wiper arm having a drive head fastened on an end portion of a motor shaft, which is part of a screen wiper drive unit. The motor shaft end portion comprises a conical portion which is received in a complementary through hole associated with the drive head, and which is extended by a threaded terminal shank on to which a fastening nut is screwed. The radial thrust face of the nut cooperates with a portion, in facing relationship with it, of the upper face of the drive head. The drive head comprises an orientation ring in which the conical through hole is formed, with one face of the orientation ring being formed with a set of ridges which cooperate with a complementary ridged engagement surface formed, in facing relationship with the ridged face of the orientation ring, on the body of the drive head. The body is formed with an oblong through hole through which the end portion of the motor shaft extends.

Abstract: A vibration damping universal joint is disclosed for providing three degree of freedom orientation and limiting rotational deflection between a first and second rod portion of a manual transmission gear shift rod. The universal joint includes a first and a second clevis and a rotational isolation mechanism which provides axial deflection of the second rod portion relative to the second clevis and limits rotational deflection between the first and second rod portions.

Abstract: A link, and assembly and instrument using same, for transmitting actuating forces from an actuating member to a work member. The link includes a link body having a distal end and a proximal end. The distal end of the link body is movably interconnected with the work member by a distal interconnection element such as an arcuate groove-and-flange assembly, and is interconnected at its proximal end to an actuating member by a proximal pivotal interconnection element. The proximal element transmits a first actuating force from the actuating member to the work member. A shoulder, disposed on the link body preferably between the distal and proximal elements for interconnecting, engages the actuating member when a second, greater actuating force is applied to the actuating member in a direction opposite to that of the first actuating force. The greater force is thereby transmitted fully to the work member. The link assembly preferably includes a spacer member to assist positioning of the actuating member.

Abstract: A toothbrush assembly is disclosed which includes an articulating head portion for releasable supporting a brushhead, and which is configured to releasably mount a plurality of interchangeable dental accessory tools. A spring biased actuation member having a plurality of sprockets associated therewith is provided for effectuating incremental articulated movements of the brushhead supporting portion with respect to the handle of the toothbrush assembly to position the brushhead in a desired angular orientation.

Abstract: A tube is combined with a biased drift pin arrangement, which combination is useful for locking functions in coupling and decoupling separate tubes, or in locking-hinged dustpans, and so on. The tube has a wall formed with a pair of holes. The drift pin is formed on a leaf spring that has a base portion and a cantilever portion joined to the base portion for relative flexion therebetween. It is the cantilever portion that is formed with the drift pin, as well as a spaced push pin. The leaf spring inserts in the tube such that the drift and push pins are aligned to extend and retract through respective ones of the pair of holes. To wedge the leaf spring in place, a separate cartridge is sized and shaped to permit sliding insertion in to where respective abutment surfaces of the leaf spring and cartridge, respectively, mate each other.

Abstract: A fence assembly including posts and rails connected to each other by adjustable connecting members. The connecting member is a swivel bracket which permits adjustment of an end of the fence rail relative a fence post in various directions, e.g., in vertical and horizontal planes. The swivel bracket includes a base member and a body member, and the base member preferably has a flat side configured to be secured against the outer surface of a fence post. The opposite side of the base has a rounded concave depression adapted to receive one end of the bracket body member, the body member having a rounded exterior which fits within said depression. The body member has a hollow chamber therein which is open at a side thereof to receive the end of the rail. The ends of the rail are received in the bracket body chambers through the opening therein and then fixed to the brackets.

Abstract: A folding stand for an office chair stand includes an annular frame to hold the upright shaft of an office chair, a plurality of radial lugs horizontally spaced around the annular frame, and a plurality of legs respectively hinged to the radial lugs and supported on a respective wheel assembly and turned between a working position in line with the respective lug and a collapsed position perpendicular to the respective lug, and retainer springs respectively retained in either leg to lock the respective leg in the working position or the collapsed position.

Abstract: A tiltable fan assembly adapted to exhaust air at a variety of angular orientations. In a preferred embodiment, the tiltable fan assembly includes a generally flat base member adapted to rest on a table top or similar surface. The base member is shaped to include a pair of horizontally-extending, cylindrically-shaped sleeves. The fan assembly also includes a pair of mounting posts, each mounting post being angularly adjustably mounted about its longitudinal axis within its respective sleeves and being appropriately sized to extend out through both ends of its respective sleeve. A rotary switch is angularly adjustably mounted on the outer end of one of the mounting posts, and a cap is fixedly mounted on the outer end of the other of the mounting posts. A pair of gaskets are fitted onto the inner ends of the mounting posts. The fan assembly further includes a fan unit and a neck assembly, the neck assembly being used to couple the fan unit to the angularly adjustable mounting posts.

Abstract: The coupling is provided for linking and supporting conduits hanging above the ground and is adjustable by means of a hand-operatable nut modifying the contact friction between flat and circular edges of two hollow casings. The nut is in mesh with an axle extending through both casings and urges a spring against an axial bearing that rests on one of the casings.

Abstract: The invention relates to a holding device specially designed for fitting aerials to the roof of motor vehicles, comprising a U-shaped support (1), between the side branches of which is located and retained with the possibility of rotating about its own axis a moveable component (2) to which an aerial is secured and within which is located a helical spring (5) which expands between one of the side branches and an internal rim (6) provided adjacent one of the edges of the component (2), forcing the rim (6) against the other side branch of the support and generating a friction force opposing rotational movements of the aerial.

Abstract: A torsion bar for a slow-acting rotation shaft device is formed from a U-shaped wire rod so that hook portions formed at both ends of the torsion bar are distanced from each other by a length at least more than a diameter of the wire rod. Hook portions for latching are formed at each end and at the U-shaped bend of the torsion bar.

Abstract: A link, and assembly and instrument using same, for transmitting actuating forces from an actuating member to a work member. The link includes a link body having a distal end and a proximal end. The distal end of the link body is movably interconnected with the work member by a distal interconnection element such as an arcuate groove-and-flange assembly, and is interconnected at its proximal end to an actuating member by a proximal pivotal interconnection element. The proximal element transmits a first actuating force from the actuating member to the work member. A shoulder, disposed on the link body preferably between the distal and proximal elements for interconnecting, engages the actuating member when a second, greater actuating force is applied to the actuating member in a direction opposite to that of the first actuating force. The greater force is thereby transmitted fully to the work member. The link assembly preferably includes a spacer member to assist positioning of the actuating member.

Abstract: A stick-like apparatus for a physically handicapped person including a grip handle and a forearm supporting rod which rotates together with respect to a main rod so that the user can sit in an easy posture and can easily impose force on the stick-like apparatus when he stands up from a chair or when he goes upstairs.

Abstract: A collapsible device for a baby carriage has a locking disc as a male joint fixed with an inverted U-shaped push rod and a female joint fixed with each of the ends of a protective rod combined together and locked or unlocked by a push button fitted in the female joint. A locking block deposited and moved back and forth in a chamber in the female joint to engage or disengage from the locking disc so that the female joint can be locked together or unlocked from the locking disc so as to swing up the protective rod relative to the push rod for collapsing the baby carriage.

Abstract: A compound miter saw or the like comprising a base having a lower surface for supporting the base on a work surface. A turntable is rotatably supported by the base, and a fence is disposed above the work table for supporting the orientation of a workpiece located on the base. A support is coupled to the turntable at a rear portion of the turntable.The compound miter saw disclosed also includes a cuttinghead system for cutting the workpiece. The cuttinghead system comprises a pivoting system coupled to the support for pivoting a motor driven saw between a raised, rest position and a lowered, operational position.A compound miter saw beveling system comprises a male conical taper structure having an outer surface defining a cone-shaped member, the cone-shaped member being coupled to the support.

Abstract: A one piece shaft which supports two rotatable members is provided with shafts for energizing the rotation and for controlling an energized force of each member separately. The shaft includes a shaft body which connects two hollow shaft bodies attached to each rotatable member unrotatably on the same central shaft axis so as to rotate relatively, two members attached unrotatably to the fixed member attached rotatably to both sides of this shaft, and two torsion bars bridged between the separated hollow shaft bodies and the cap member respectively.

Abstract: A primary object of the present invention is to provide an improved joint structure for a window dummy to ensure that any joints can be easily rotated, turned or bent within a remarkably wide angle, and which shows good appearance. This joint structure comprises a hollow member including two half members each of which is formed with at least one of slidably engaging section capable of slidably engaging each other; and at least two connection members whose one end is fixed to a rod of arm, leg, or the like and the other end is rotatably connected to the other connection member in the hollow member. Further each of the connection member is independently fixed to the half member of the hollow member. One of the connection member is formed with means to prevent from interfering with the other half member fixed with the other connection member.

Abstract: A collapsible tent frame has two pole position bases and a plurality of reverse U-shaped frame units to combine with the pole position bases to support a tent roof cloth. Each frame unit consists of two main frame poles having their lower ends screwed with the position bases to stand in radiant direction, and a vertical extension pole connected with a main frame pole at one end and with a horizontal extension pole at the other end with a collapsible hinge to form a reverse U-shaped frame unit. After all frame units are assembled with the position bases, two position ropes can be inserted through each frame unit firmly to keep all the frame units spaced apart from each other at a proper distance. Two sustaining bases are provided to sustain the outer-most frame unit pulled upward to form an entrance for this tent.

Abstract: The present invention comprises a housing which includes a handle assembly attached thereto. The handle assembly has a first retracted position and a second extended position. The handle assembly includes a fluid container suspension mechanism thereon. Accordingly, when the handle assembly is in the second extended position, fluid containers may be suspended from the suspension mechanism on the handle assembly. The handle assembly may be retracted to the first position for storage or transport or for carrying the device via the handle assembly.

Abstract: An angle adjusting mechanism for a supported article includes a fixedly positioned holding member and a rotary member relatively rotatable with respect to the holding member. A plurality of plates are disposed between the rotary and holding members. The holding member is provided with a plurality of claw teeth at the inner periphery of one arcuate segment and the rotary member is provided with a respective plurality of claw teeth over a different arcuate segment of the inner periphery thereof. A first plurality of fixed plates, including claw teeth on their peripheries, engage the teeth of the holding member, on a second plurality of rotary plates, including claw teeth on their peripheries, engage the claw teeth on the inner periphery of the rotary member.

Abstract: A shaft assembly for connecting the screen cover of a portable computer to the computer body and permitting permits the cover to be pivoted and maintained at a desired angle of use. The assembly includes a hollow shaft provided with an expandable conical claw which is frictionally engaged within a rotatable positioning ring on which the screen cover is mounted, so that pivoting of the cover will cause the ring to rotate relative to the hollow shaft and be frictionally maintained in a given angle of rotation relative to the hollow shaft.

Abstract: Display easel having an elongated connector to which are attached three legs which can be moved from parallel storage positions to angular erection positions to form a tripod. The connector has a longitudinal passage in which slides a support rod, the movement of the legs from their storage positions to their erected positions causing the legs to lock the rod at a selected position in the passage. The legs have telescoping extensions and at least one leg has an auxiliary element that is held on the leg by a blind rivet whose head lies in a protuberance in the leg, so that its head does not interfere with sliding of the extension in the leg for adjustment.

Abstract: A free positioning tilt unit for use in portable computer or the like, comprises of main frame, mounting bracket element, sleeve, display unit and bushing, in which the opening, closing and positioning of the display unit is achieved by means of the revolving and positioning of the bushing in the sleeve; the bushing is secured to the display unit by means of the engagement of relative tangent planes so as to follow the display unit to move; a central through-hole is formed, when all the component parts are respectively connected together, for insert therethrough of electric wires.

Abstract: An irreversible continuous pivotal connection between a fixed part and a movable part includes a fixed side plate fixed with respect to the fixed part and having an arcuate array of teeth, as well as a movable side plate fixed with respect to the movable part and having an arcuate array of teeth. The movable side plate is mounted parallel to the fixed side plate for rotation about a fixed common axis. A planet gear is positioned between the fixed and movable side plates, and has two external arcuate arrays of teeth with different diameters and locally meshing with the arcuate arrays of teeth of the fixed and movable side plates. An eccentric member is mounted for rotation about the fixed axis and presses on the planet gear so that rotation of the eccentric member in one direction causes epicyclic rotation of the planet gear in another direction.

Abstract: A method and apparatus for performing stereotactic surgery upon a target within a skull establishes a first, predetermined geometric relationship between a positioning fixture mounted on the skull and a scanning table surface upon which the skull is supported; and that geometric relationship is duplicated in a phantom fixture. An arc device permits entry into the skull by a medical instrument from a plurality of locations upon the skull.

Abstract: A knuckle joint in which a first piece with an eye enters a jaw between two corresponding projections of a second piece having a first and a second eye respectively formed therein, and is retained by a pin member, wherein the pin member comprises a pin having a first end with a button fixed thereat and a second end. The pin passes through the eye of the first piece, which then retractably protrudes the button out from the first eye of the second piece and extends the second end to a position near the second eye of the second piece. A stopper has a protrusion which is passed through the second eye of the second piece, extending into the eye of the first piece, and joined with the second end of the pin. A slide block is passed through by the pin and inserted within the eye of the first piece, retractably protruding into the first eye of the second piece.

Abstract: An attachable steering handle for an electric trolling motor that includes a swivel, an adaptive shaft connected to the swivel, and a control handle shaft connected to the swivel. The attachable steering handle is connectable to the trolling motors by connecting the adaptive shaft to the motor shaft and to the motor control housing. The control handle shaft is positionable between an upper position and lower position, that are generally parallel to the motor shaft. The swivel includes two disk shaped spacers with a center hole in each spacer. A bolt is passed through the holes in the spacers and the head of the bolt is welded to one spacer. The bolt has a threaded end that protrudes out of the hole in the second spacer. A generally T-shaped handle having a threaded nut on the working end is provided to mate with the threaded end of the bolt. The handle is used to lock and unlock the swivel when the user adjusts the position of the control handle shaft with a soft handle on its distal end.

Abstract: A DIY (Do It Yourself) electric hand tool is provided to include a front segment and a rear segment which may be pivotably coupled to each other at one respective end thereof. A latching mechanism is provided between the coupled respective ends of the front and rear segments so that one of the front and rear segments may selectively be pivoted relative to the other of the front and rear segments to and be latched in one of a first position and a second position which endows the DIY electric hand tool with a configuration which fits the DIY tool to a specific working environment.

Abstract: A swivel lock assembly includes pivotally interconnected first and second rods. A pivot of resilient material has two radially projecting end extrusions, one of which is passed through the bores of the rods and rotated to engage with a shallow groove of the corresponding rod surface. The other of the extrusions presses the rods against each other with its inwardly extending push arms so that the circularly arranged teeth of the rods mesh with each other, thereby preventing relative rotation of the rods. The rods can be forced by hand to disengage from each other, permitting the relative rotation of the rods. When the operator lets go of the rods, the push arms of the pivot press the rods toward each other to interlock the rods.

Abstract: A corner work center includes a mounting unit for a computer and like equipment which quickly attaches to two adjoining surfaces at the same height. The unit eliminates the need for an expensive and complex intermediate or third top and the requisite hardware. The unit includes an elevated plate mounted on the frame and a forward tray or bridging surface which is captured by the frame and extends forwardly of the frame at a lower elevation and bridges the included angle between the adjoining surfaces. The unit may also include an articulating arm assembly having a positionable keyboard tray which may be positioned beneath and forwardly of the forward tray. With the arm assembly the keyboard tray can be extended for use or retracted when not in use. The tray includes handles and adjustable bumpers. The unit also includes one or more swing arm supports secured to the frame to position computer components or accessories at desired locations for effective use.

Abstract: A hinged joint for adjustably connecting tubular handrails to stanchions or posts, in the assembly of stairway railings, include first and second pivotally connected components, one of the components adapted to be mounted to a stanchion or post and the other to a rail, providing for the adjustable angular offset of the rail with respect to the posts. The pivotal components making up the joint each include a semi-spherical and axially-extending hinge portion, which portions terminate in quarter-spherical end surfaces. The respective hinge portion surfaces are received in corresponding mating quarter-spherical sockets formed in the opposite members. A transverse connector adjustable external to the joint permits the first and second members to be set at a predetermined angular position in accordance with the slope of the rail.

Abstract: Apparatus is provided for adjustably supporting an object, such as a surgical light, between two points on a yoke-type frame. A housing having a cylindrical cavity and a threaded axial bore therethrough is secured to one of two hubs provided on the legs of the yoke. An adjustment screw having a face plate passes through the aperture. Wave washers and a spherical washer having a spherically concave friction surface are provided within the housing's cavity. A shaft is supported within the housing by a spherical bearing and terminates in a nut having a spherically convex friction surface. A keyway and recessed area on the shaft serve to secure the light to the shaft. The hub on the other leg is provided with a spherical bearing which supports a second shaft. The second shaft has a keyway and a recessed area which are engaged by a key and adjusting screw on a second mounting bracket in the opposite side of the light.

Abstract: Portable, collapsible, adjustable support apparatus is described comprising first and second tubular members which are telescopically connected. A base member including pivoting legs is preferably attached to the lower end of the first tubular member. The second tubular member includes engagement means which is adapted to releasably engage the interior surface of the first tubular member. Release means carried by the second tubular member may be actuated by one hand to raise or lower the second tubular member with respect to the first tubular member. A locking system is also described which is adapted to releasably lock pivotable leg members to a base member. The leg members may be locked in either an upward or downward position.

Abstract: A corner guide assembly having a first and second housing arms each having straight and curved guide grooves and a flexible resilient connector connected to elongated drive rods slidably located in the straight guide grooves.

Abstract: A support frame for an awning having a cover made from a single piece of fabric (13), has the peculiarity of comprising support brackets (1) for attachment to a support structure such as a wall or a ceiling, the brackets (1) supporting a square bar (2) on which are carried attachment elements (3) fitted to the ends of guides (4) on which are slidable carriages (10) for displacement of an awning cover draw bar (12) attached at or ajacent to one end of the awning cover (13). The draw bar (12) overlies the said guides (4) over the whole of its longitudinal length so that a single piece of fabric can be used for the awning (13) even if the frame has several spans. At its other end the awning fabric (13) is wound on a wind up roller (14) rotatably supported by arms (15) connected to the square bar (2).

Abstract: The invention relates to a collapsible wheelchair chassis of the type including two side frames, which are jointed together by a pair of crossed braces provided with a pivot joint at their middle. According to the invention, the braces are arranged in a horizontal plane in order to obtain maximum compactness of the chassis in its collapsed state.

Abstract: An adjustable knuckle joint device for folding ladders includes in combination: a first coupling member having a first circular junction portion provided with an annular flange and a plurality of openings and bulges therein and a first elongate joint portion extending at an angle from the circular junction portion; a second coupling member having a second circular portion with a flat top surface being movably connected to and in bearing contact with the first coupling member, and a second elongate joint portion extending at an angle from the second circular junction portion; a straight axle fitting pivotally connecting the first and the second circular portions together; and a snap catch positioning assembly operatably fixed on the second elongate joint portion of the second coupling member in conjunction with the first circular junction portion. By manually operating the snap catch positioning assembly, a simple, secure and safe adjustment of both coupling members relative to one another results.

Abstract: For adjusting the angle of inclination of a motorcycle steering column relative to the frame of the motorcycle the tubular steering column support has, near one of its ends, a pivot connection with the frame whereby its other end is swingable forward and rearward relative to the frame. Near the other end of the steering column support is an eccentric connection between it and the frame. Adjustment of the eccentric is effected by means of a swingable arm projecting rearward from one element of the eccentric and a lead screw actuator connected between that arm and the frame. Adjustment can be made while riding, to accommodate riding speed and conditions.

Abstract: A painting tool, with an internal paint reservoir that feeds paint to a roller in a relatively continuous fashion, is manipulated through an adjustable handle. The roller housing includes a pair of brackets defining a convex surface. The handle telescopically passes through the convex surface and is encircled by a ring which threads about the handle. The ring is cammed to move towards and away from the spherical surface on the roller housing, when the ring is rotated. Since the ring includes a concave surface, the translation of the ring with respect to the convex surface on the roller enables locking engagement to be attained between the handle and the roller housing. In this way the handle may be selectively fixed with respect to the roller in one of a plurality of relative angular orientations to facilitate painting.

Abstract: A support knuckle for a luminaire has a first body attached to the luminaire housing and a second body which can be attached to a mounting location. The first body has a recess with peripheral teeth and a passage to the housing interior. The second body has teeth which are matable with those on the first body at various angular positions. The two bodies are held together by a threaded fastener passing through an elastomeric sleeve.

Abstract: A mud flap hanger for use on road vehicles such as trucks and truck-tractors wherein the hanger is adapted with pivotally mounted arms to which are attached mud flaps. The mud flaps may be moved from behind the wheel of a truck and stowed centrally between the rear wheels. Pivotal movement of the arms is achieved through use of a flexible bushing generally rectangular in shape wherein the inner walls of a generally square aperture has expansion slots and lubrication grooves for lubricating the arms carried within the aperture.

Abstract: Co-operating coupling members for securing together elongated tubular frame elements in the construction of a shelter. The said coupling members comprise two configurations, each of which is adapted to be received in the open end of an associated frame element. With these two coupling configurations, as many as five or more frame elements can be connected at a juncture at selected angles to each other.

Abstract: A remote manipulator for a robotic system has a plurality of intercoupled manipulator links and a principal manipulator drive unit coupled to manipulate the remote position of an end-effector supported by said links in response to a manipulator control signal. Coarse adjustment of the end effector is refined by a precision control subsystem which augments the principal manipulator to achieve a "control-in-the-small" robotic manipulator system. The augmenting precision-achieving subsystem includes a coupling mechanism, coupled with one of the links, for establishing the position of one of the links relative to another link, and a precision adjustment device, associated with the coupling mechanisms for adjusting the position of the one link relative to another link as established by the coupling mechanism, independently of the action of the principal manipulator drive unit and effectively without bearing the load supported by the one of said links.

Abstract: Spade with a blade coupled to a preferably hollow handle by means of a bearing pin so as to be pivotable and lockable in various positions, and a handle which at its end facing the blade has a plurality of surfaces extending parallel to the bearing pin, wherein adjacent surfaces include an obtuse angle with one another, and wherein the bearing pin is constructed as an eccentric, and wherein, by rotating the eccentric by means of an actuating member, such as, arm, rotary disk or the like, fixed to the eccentric, the spade blade can be pressed against one of these surfaces.

Abstract: A sparking accessory adapted to be mounted on a bicycle, or the like, and comprising a stationary friction disc member and a rotational sparking disc member. In one embodiment of the invention, the accessory is mounted on a pivotal arm member which in turn is secured to the bicycle, the arm member being manually movable between upper and lower positions, the upper position being the storage position for the accessory in a non-operative position therefor, and the lower position placing the rotational sparking disc member in frictional engagement with the outer periphery of the bicycle tire for achieving a sparking effect. In another embodiment of the invention, the stationary friction disc member is secured to a housing structure and the rotational sparking disc member is secured to the drive shaft of a battery powered motor for selective rotation of the sparking disc member with respect to the friction disc member to achieve a sparking effect.

Abstract: An attachment for a fireplace flue damper, which has an operating arm of flat bar stock steel. A steel channel with serrated edges is placed at any selected angle across the arm and tightened down with a bolt to grip it. A hand grip is placed over the outer end of the channel and disposed at any angle, usually tilted upward to bring it near the top of the fireplace opening when the damper is opened. It, too, is tightened down to grip by friction.

Abstract: This invention concerns a bicycle derailleur comprising a screw engaging in a nut which is provided on the derailleur and which comes into contact with a stop member which is fixed in relation to the bicycle frame.

Abstract: A support for a headrest characterized by an articulable arm having a locking system operable single-handedly for locking the arm at selected positions of adjustment and releasing for readjustment.

Abstract: A bicycle seat post for supporting a saddle on a bicycle frame. A tube cap is secured to the upper end of a tube and provides a cylindrical-segment upper surface. There is a generally cylindrical concentric inner surface, and an oversize upward passage through both surfaces. A cylindrical swivel pin is in engagement with the inner surface. The saddle has a rigid frame that is to be clamped between upper and lower clamp members. The lower clamp member has an upper clamping surface and a lower cylindrical-segment surface in engagement with the cylindrical upper surface of the tube cap. The upper clamp member has a lower clamping surface and a threaded vertical opening. The assembly is held together by a single bolt, preferably extending up from the bottom of the tube cap, through a diametric opening in the swivel pin, through an opening through the lower clamp member, and into the threaded opening of the upper clamp member, tightening all the members together and to the saddle.

Abstract: Adjustable saddle support for bicycle comprising a pillar, a head and means for supporting a saddle in an adjustable position, said means being in engagement with said head by way of at least a pair of complementary curved surfaces under the action of a single coupling member.