Abstract: An ergonomically adjustable tool handle having a dual direction locking device including a modified swivel retaining plate having an external threaded portion and a corresponding modified jam nut which is threaded to receive the external threads of the retaining plate. A retrofit kit incorporating the locking device optionally includes an anchor bolt having a predetermined length for installation on a conventional tool handle.

Abstract: A Bicycle Seat Support (14) includes a rotationally-biased centering mechanism (20) for coupling a seat mount (16) to a frame mount (18). The rotationally-biased centering mechanism has a biasing mechanism for causing the seat mount and an attached bicycle seat to rotate toward a normal angular position about a seat axis (36) while allowing the bicycle seat to be forced away from this normal angular position by pressure applied by a rider when pedaling the bicycle. The rotationally-biased centering mechanism includes bearing surfaces (48,50) having an interface which allows the seat mount and the frame mount to rotate while not allowing substantial axial movement. Stops are included for preventing excessive angular seat movement.

Abstract: The invention relates to a device producing a stance flexion. This goal is achieved according to the invention by virtue of the fact that in the initial position of the multi-element joint system one element (joint element) can execute two movements with respect to the other elements (joint elements) connected to it, with at least one movement, after its initiation, at least predominantly blocking the other possible movement.

Abstract: A safety swing seat mounting structure includes a coupling mechanism mounted between a support frame and a swing seat, enabling the swing seat to be swung on the support frame, the coupling mechanism including a pivot pin mounted on the support frame and a coupling plate mounted on the swing seat and turned with the swing seat about the pivot pin, and a constraint mechanism which limits the swinging angle of the swing seat, the constraint mechanism including a transversely extended oblong constraint hole provided at the coupling plate, and a constraint rod fixedly mounted on the support frame and hooked in the constraint hole.

Abstract: An orthopedic splint has two end plates connected to an intermediate hinge which flexes in a plane transverse to the plates and attaches to a limb in a less obtrusive position behind the joint rather than on opposite sides of the joint. The hinge has continuously adjustable stops for limiting flexing and extension and a spring contained in the hinge for preloading the splint. The entire splint including the hinge may be enclosed and contained in a zippered moisture absorbent contour fitting cover for improved esthetic appearance and comfort.

Abstract: A foldaway stand having a sliding frame moved along a longitudinal frame bar on a golf bag, two connectors bilaterally coupled to the sliding frame through a slip joint to hold a respective leg, two links having a respective top end pivoted to the connectors and a respective bottom end fastened to a foot plate, a sliding coupling member coupled between the links and moved to force the links toward each other, wherein each connector has a plug hole adapted to receive one round rod at one side of the sliding frame, a locating slot connected to the plug hole at right angles and adapted to hold a locating pin on the round rod so as to prohibit a backward movement of the round rod, and a sliding groove through which the locating pin on the round rod can be moved with the round rod through the plug hole to the locating slot.

Abstract: An end link is provided for a stabilizer bar of a vehicle suspension system. The end link includes a rod having pairs of grommets generally at each end thereof. Each grommet includes a bushing and washer which are interengaged and rotatable with respect to each other. Each grommet further includes a central passageway that which the rod is disposed within and permits pivotal movement of the rod only substantially in a single plane relative to the grommets and permits substantially universal pivotal movement of the rod around the center of the grommets. The end link can also include a like rod having a pair of universal ball joint structures generally at each end thereof. Each structure includes a universal ball which is integrally formed with a spacer, a bushing and a washer. The bushing is rotatable with respect to the washer.

Abstract: An adjusting mechanism for a support element included in a seat and pivotable in the vertical plane. The mechanism comprises a fastening element (1) to be mounted on a seat or a separate body member and provided with a transverse through-hole (10) for a fulcrum pin facilitating the pivotable fixing of a support element (2), and a fastening member (3) included in the support element (2) and provided with a through-going opening (8) for said fulcrum pin. The opening (8) included in fastening member (3) is made elongated and one end thereof is provided with a bushing member (6) receiving said fulcrum pin and adapted for a relative movement in the longitudinal direction of opening (8) towards the other end of said opening (8). The opening (8) is further provided with a spring element (7) applying an impulsive force between bushing (6) and fastening member (3).

Abstract: An adjusting mechanism is adapted for use with a footrest mounted in front of a seat, and a fulcrum pin to facilitate pivotable fixing of the footrest. A fastening member adapted to be included in the footrest has a pair of elongated openings for the pin. A spring biased bushing is provided at a first end of each opening and is adapted for relative movement in the longitudinal direction of the openings toward a second end of each opening. First and second guiding and locking elements are included, respectively, in the fastening member and in a fastening element through which the pin extends. Pivoting the footrest is effected by shifting it in the longitudinal direction of the openings against the spring bias toward the fulcrum pin to release the guiding and locking elements. When the footrest has been pivoted to a desired locking position, the spring bias returns it to a position in which the bushings are at the first opening ends and the guiding and locking elements are engaged.

Abstract: A toothbrush in which a basal end portion of a neck portion is connected to a distal end portion of a handle portion through a pivotal pin, a slide member for fixedly connecting the basal end portion and the distal end portion is slidably arranged relative to the distal end portion through the pivotal pin, so that the bending angle of the neck portion relative to the handle portion can be adjusted by sliding the slide member, the basal end portion includes a pair of linkage portions which are brought to outer sides of the distal end portion of the handle portion and connected to the distal end portion through the pivotal pin, the linkage portions are each provided with a slant elongated-slit positionally offset toward the bristle portion from the pivotal pin, the handle portion is provided with a slide guide groove for guiding the slide member, the slide member includes a slide basic body having an elongated-slit for receiving the pivotal pin, the slide basic body being slidably fitted in the guide groove and

Abstract: An orthotic joint comprising a first member, a second member and an intermediate plastic member secured together by a pivot. The second member includes a cam follower affixed thereto. The first member and intermediate plastic member include first and second arcuate slots respectively. The first and second arcuate slots are aligned. The first and second members are rotatable with respect to each other. The cam follower protrudes through the second slot and into the first slot. The range of motion is determined by the length of the slot relative to the size of the cam follower.

Abstract: A windshield wiper comprising a large rib, two middle ribs, two small ribs and a wiper blade composed of double blade members with angle difference, wherein two ends of the large rib that connect with the middle rib are mobilely longitudinally swingable through a small angle and transversely rotatable through a fixed angle responsive to the change of curvature of a windshield, whereby the double blade members are always adapted to the curvature of the windshield and tightly attached thereto during the alternately wiping operation thereof.

Abstract: The invention is directed to a connection system for two structural component parts (1, 10) which are constructed as pipe or rod and/or nodal elements and contain connection ends (7, 15) having front recesses. An angle element (22) with a spherical surface (23) at which the two ends of a through-passage (32) penetrating the angle element (22) open out serves to adjust a multitude of angles (.alpha.) between the structural component parts (1, 10), which angles (.alpha.) can be changed preferably between preselected limits. The connection ends (7, 15) are provided in the area of the joint faces (24, 25) with contact surfaces (27, 28) adapted to the spherical surface (23) so that fine, hardly visible joint faces (24, 25) are formed between the structural component parts (1, 10) and the angle element (22).

Abstract: An apparatus (10) for adapting a drywall skim box (44) to an extension pole (16) to permit application of finishing compound to joints in locations remote from the user (54), such as in extended or high walls. The apparatus (10) includes a curved arm (24), one end of which is coupled to an extension pole (16) and the other end of which includes a mounting platform (38) for attachment to a skim box (44). The skim box (44) is both rotatably and pivotally coupled to the arm (24) for proper positing on a wall surface (58) to be finished. The geometrical relationship between the position of the skim box (44), the arm (24), and the extension pole (16) results in application of sufficient pressure to properly operate the skim box (44) as it is moved along a joint (56).

Abstract: A computer case having a base (10) incorporating a keyboard (14) which in the closed condition of the case is covered by a lid (12) having its display uppermost, the case opening by a mechanism enabling the lid to slide rearwardly and incline relatively to the base so as to present the display forwardly behind the keyboard.

Abstract: The present invention is a folding pole hedge trimmer, which is capable of operating at unusual heights, twenty (20) feet or more from the ground. It includes an elbow joint in which the upper hollow pole and the lower hollow pole can be folded for easy storage. The present invention utilizes a very light-weight reciprocating cutting head used for hedge trimming, shaping of tree crowns, cypresses, bougainvilleas and other tall growing plants. The present invention relates to a spring biased mechanical cable drive. The present invention is designed to reduce the weight, complexity and cost of the spring biased mechanical cable drive.

Abstract: A joint for adjustably mounting a backrest support on a stroller frame. The joint consists of a first element and a second element. The first element has (a) an arc-shaped edge, (b) a hole formed transversely through the first element, (c) two bosses formed on a side of the first element, for which the hole is the middle point, (d) a flange formed along the arc-shaped edge, (e) a number of teeth formed on the flange and (f) a pocket for receiving the backrest support. The second element has (a) a tubular body for receiving a handle, (b) a clamp formed below the tubular body, for receiving a rear wheel leg, (c) a plate with an arc-shaped rim, being formed on a side of the tubular body, (d) a passage formed transversely through the plate and the tubular body, (e) two slots formed in the plate and (f) a number of recesses formed in the arc-shaped rim. A rivet penetrates a hole in a seat support, the hole in the first element, the passage in the second element and a hole in the handle.

Abstract: A coupler for collapsible joints consisting of a hollow body having an interior cavity, an exterior surface with an arcuate portion, and an arcuate slot extending radially from the interior cavity to the exterior surface over at least 90 degrees of the arcuate portion. A receptacle is provided for attaching a first support member to the body. An elongate fastening member extends through the slot, and is adapted to extend into a second support member thereby securing the body to the second support member. The body rotates about a first axis transverse to the fastening member to the extent that clearance is provided by the slot thereby positioning the support member between a first position in parallel alignment with the base and a second position substantially at right angles to the base. In the second position the body is rotatable about a second axis provided by the fastening member to alter the rotational positioning of the slot relative to the fastening member.

Abstract: A link rod of a wiper for a motor vehicle, comprising: a cylindrical section; a pair of flat sections formed at opposite ends of the cylindrical section, respectively by crushing the opposite ends of the cylindrical section from above and below; and a pair of resinous coupling joints mounted on the flat sections, respectively; wherein a first hole having a large diameter and a second hole having a small diameter are, respectively, formed at outer and inner portions of each of the flat sections as viewed in a longitudinal direction of the cylindrical section; wherein a gap opens into an axially intermediate portion of a peripheral surface of the second hole such that interior of the cylindrical section is communicated with a mouth of the second hole through the gap; wherein each of the coupling joints includes a joint portion disposed at the first hole and seals the second hole and the gap, and a method of manufacturing the link rod.

Abstract: The automobile anti-theft device consists of a hardened steel collar which encircles the steering column of the automobile and includes two rotatably attached sections which are attached to each other by sliding one end of a first section underneath an end of the second section. The first section has a projection on the end which fits into a radially extending recess on the underside of the second section and thus acts as a pivot point about which the first section rotates relative to the second section. The first section consists of an arcuate body, which is shaped to cover a portion of the side of the steering column, and a projection which extends radially out from the arcuate body. When this section is in place on the steering column, the projection is thus approximately perpendicular to the steering column. The second section consists of an arcuate body which is shaped to cover a portion of the steering column which is contiguous with and on the same side as the portion covered by the first section.

Abstract: A weight-supporting walking aid has two side supports joined at the front to a crossmember by couplings which permit the side supports to be folded inward over the crossmember for storage and latch the side supports in the open position for normal use.

Abstract: A pole support system for a carport and the like includes an anchor member for the carport having an earth piercing bottom end for being pounded into the ground with a base ring positioned on the surface of the hard top and a spacer ring interposed between the base disc and stop collar at the top end of the anchor. A pole support has the second stop collar above its first lower end which telescopically engages the open top end of the anchor member. The upper end of the pole support has two spaced parallel flanges which are secured to a saddle member that is affixed to a beam at a variety of adjusted pivoted positions. Alternatively the top of the pole support can be mounted to two support plates which are horizontally disposed and can be adjusted along two horizontal axes and secured to each other at the desired position.

Abstract: A replaceable xerographic cassette is coupled to a rotatable driving shaft in a copying machine by a rotary drive coupling member in which a splined drive shaft of the cassette engages as the latter is inserted into the machine. To accommodate angular misalignment of the shafts, the coupling member is of two-part form and two parts can rotate relative to one another as the shaft is being inserted, to take up any misalignment that may exist.

Abstract: An impact or user displaceable self-adjusting mounting assembly for attaching an outside rear-view mirror to a vehicle includes two mounting brackets for attaching respective ends of a mirror support arm to the vehicle. The upper bracket provdes an articulated joint between the bracket and the vehicle to permit adjustment of the mirror and support arm in a generally vertical orientation. The upper bracket also provides a pivot axis about which the support arm can be rotated in a generally horizontal orientation either by the user or upon impact. A detent mechanism provides a position selection and retaining means for the mirror support arm. The lower mounting bracket also provides a pivot axis for the mirror support arm and includes self-adjusting means for maintaining the lower pivot axis colinear with the upper pivot axis independent of the vehicle profile.

Abstract: A coupling device includes a first support member which is connected to the arm of a robot and which supports a second support member for precision universal tilting and axial and/or rotary movement from an aligned normal position. The second support member supports robotic tooling, and a set of springs or springs and ball members or fluid actuated piston bias the support members to the normal position. An electrical control circuit is effective to stop movement of the robot arm in response to minute tilting or axial or rotary movement of the second support member in the event the tooling or article carried by the tooling is accidentally hit or overloaded. A set of semi-circular rings and auxiliary springs are attached to the support members for producing a substantial biasing force towards the normal position, and a set of construction balls and corresponding seats are used to establish a precision normal position.

Abstract: A quick disconnect device having a locking feature for securing the quick disconnect device in a lock position is provided for connecting tooling attachments to the boom of an electromechanical feeder used with pick and place operations. The locking action utilizes a cam and follower arrangement and is provided by a detent in a lock position of the cam contour. The detent retains the cam follower in the lock position and prevents the cam follower from becoming unintentionally released, preventing the tooling attachment from becoming loose or disconnected from the boom.

Abstract: A balustrade includes a top and bottom rail, and a plurality of plug members respectively fixed in aligned grooves of the top and bottom rails. Each of the plug members includes a U-shaped portion and two flap portions extending respectively from the U-shaped portion. Each of the U-shaped portions of the plug members has a guiding slot with two enlarged ends formed therein. A plurality of balusters of equal length are parallelly mounted between the top and bottom rails. Each of the balusters has two end portions respectively and rotatably received in one of the plug members on the top rail and one of the plug members on the bottom rail. Each of the end portions of the balusters has a retaining member fixed thereto which is slidably retained in the guiding slots to prevent the end portions of the balusters from separating from the plug members of the rails.

Abstract: A kneeling aid for household or garden use in the form of a platform or board with upstanding handles by means of which work required to be done in a kneeling or near kneeling position may be accomplished. The platform has an upper padded surface (9) and handles (16) at opposite ends thereof for assuming or arising from the kneeling posture. The handles (16) have elongated slots engaging hinge pins (15) in support members (8). This slot-and-pin arrangement allows locking of the handles in the upright position consequent to downward sliding of the handles in supports (8), while raising of the handles permits them to be pivoted into cut-outs (10) so that the handles can lie folded onto the platform.

Abstract: The tool of the present invention is comprised of a scoop with a short upright stem which is connected to a threaded broom handle of any length thru a multi-positional, self-locking, rotary acting articulated joint. Opposing surfaces of both members of the joint are constructed with raised ridges designed and constructed such that when these surfaces are placed proximate one another, the ridges exactly interlock, and, when secured with a nut, bolt, washers and compression spring affixed thru a hole bored thru the center of the surfaces, the interlocking ridges will tend to hold the joint, and hence the scoop, in any of a number of positions as selected by the user. If desired the nut can be locked to overcome the compression spring thus securing the joint against forceable movement establishing a firm, shovel-like effect.

Abstract: A load-bearing member is positioned in a slot extending through a composite structure of laminated reinforced plastic having overlapping layers of fabric plies embedded in a thermoplastic material. A connecting means such as a shank of a bolt connects the load-bearing member with a second structure. The load-bearing member has a flat surface engageable with a flat surface of the slot which is generally parallel with the edge surface of the composite structure in abutting relationship with a surface of the second structure. The slot extends through the overlapping layers of fabric plies in such a manner that the load is distributed by the load-bearing member to avoid the concentration of forces which cause shear failure and delamination.

Abstract: A link coupling device comprising a ball pin and a ball retainer is disclosed, wherein the ball pin is provided with a movement-restricting projection portion and the ball retainer is provided with a movement-restricting recess portion capable of engaging with the movement-restricting projection portion when the spherical part of the ball pin is press-fitted into the press fitting part of the ball retainer.

Abstract: The universal joint (10) comprises a first shaft (12) with an annular head (14) having a cavity (16) therein and oppositely disposed seats (17, 19) about the perimeter of the cavity (16). The seats (17, 19) have inclined bottom surfaces (21) which displace radially inwardly a pair of seats (30) each having a cylindrical seat extension (34) terminating in a curved seat surface (38). The second shaft (22) has a head (24) with diametrically opposed recesses (26) each having a curved surface (28) therein. The head (24) of the second shaft (22) is captured between the seats (30) to provide a lash-free universal joint (10).

Abstract: A tine assembly for a tiller, comprising a plate (12 or 20) mounted on a rotative shaft (11) and a plurality of tines (13 or 21) connected by a pivotal connection (14 or 22) to the plate so as to swing outwardly of the plate to engage the soil upon rotation of the plate, and limiting means comprising bolts (15 or 24) in arcuate slots (13D or 23) whereby the tines are angled or positioned for proper soil working action depending on the rotative direction of the plate with the shaft.

Abstract: A vehicle hood has a first end rigidly supported to a vehicle frame while a second end of the hood is yieldably or resiliently supported to the frame through side panels so that twisting motions of the frame are not transmitted to the hood or side panels.

Abstract: A headrest includes a unidirectional clutch permitting adjustment of the headrest from a reference position to any desired selected position and resists motion in a rearward direction except upon release of the clutch. In one embodiment of the invention, a spring return mechanism is provided to automatically return the headrest to a reference position upon release of the clutch.

Abstract: An instrumentality for preventing jackknifing of a vehicle commonly referred to as a tractor trailer and a steering control system therefor including a plate disposed on a bottom face of the trailer adjacent the fifth wheel, a housing disposed on a leading edge of the fifth wheel through an anchor plate, the housing including an upwardly extending locking pin adapted to be placed within the opening on the trailer connecting plate, a system for putting the locking pin into and out of engagement with the opening, first and second sensors deployed with the locking pin indicative of the motion of travel within the opening by the locking pin, a control console disposed within the cab of the tractor indicating the status of the locking pin and coupled with an engine speed sensor for denoting slow moving conditions with the locking pin in effect, and an actuator to cause the locking pin to move from a first to a second position as desired within the ready grasp of the driver.

Abstract: Force upon the cutting head of a glass cutter will displace it rearwardly into the handle, thereby opening a valve by shifting an interconnecting tubular stem, admitting air into the reservoir. The air passes through the stem, the lubricant flows along its exterior, and both pass through a wick disposed to apply the lubricating fluid to the cutting wheel.

Abstract: Standard engineering shapes or profile elements are united by screw clamps to form a releasable and adjustable boom arm or cantilever arrangement. By means of quadrangular clamp bodies, substantially vertical support arms carrying seating or reclining means for a person are mounted on a horizontal support arm and can be individually adjusted in relation thereto. The boom arm is mounted in a further screw clamp provided in the free end of a hydraulic cylinder and piston assembly and is therefore capable of being raised and lowered and swivelled about the lengthwise axis of the cylinder. A hand-grip capable of being pivoted away is provided for the safety of the occupant. Boom arms of this type are employed in bathing installations to safely transport patients and invalids into and out of bath or the like tubs. The releasable and adjustable design concept of the boom arm permits it to be dimensionally adjusted during its initial installation, so that preliminary dimensional surveys are superfluous.

Abstract: A construction for clamping together a first member and a second member. The first member is formed with a bolt hole, and is in contact with the second member which is formed with an elongated slot. The shank portion of a bolt passes through the elongated slot and into the bolt hole to engage with the first member. A block member lying within the elongated slot is formed with a hole through which the shank portion of the bolt passes. The head of the bolt presses the block member into the slot, towards the first member. The side walls of the block member are in contact with the side walls of the slot. At least one of the side walls of the block member or of the slot angles inwards, and the block member is so thick in the direction across the slot that without deformation of the parts the block member cannot be pulled by the bolt so far through the slot towards the first member as to contact the first member.

Abstract: A stay can be used to support a cab of a tilt cab vehicle selectively in a first raised position in which the cab has been pivoted through an angle of, for example, 40.degree. and the stay is in compression, and in a second raised position in which the cab has been pivoted through a larger angle of, for example, 50.degree. and the stay is in tension. The stay comprises an arm pivoted to the cab and an arm pivoted to the vehicle frame. The ends of the arms overlap and are connected by means of a pin which passes through specially shaped slots extending in each arm. The pin is formed with offset pairs of flats which cooperate with the slots in the arms, and the pin can be rotated by a lever which controls operation of the stay.

Abstract: A portable soccer goal has a pair of stationary posts, and a pair of leg braces pivoted to the upper ends of the posts, one brace for each post. The upper ends of the posts are connected by removably connected cross pieces defining the upper boundary of the goal. A net wrapped about the posts and braces and supported on the top of the posts is also provided such that the mouth of the goal is defined between the leg braces. Shoes are provided for the bottom of the posts and braces, each shoe having a spike for insertion into the ground to erect the goal. The cross pieces are connected by snap buttons and arcuate slots so that the posts may be rotated relative to the cross pieces.

Abstract: A brace for use as a knee joint brace or a fracture brace, for example, comprises upper and lower bars and at least one pivot pin for joining adjacent end portions of the bars so they can pivot relative to each other about at least one transverse axis. One embodiment comprises a polycentric brace in which adjacent end portions of the upper and lower bars are engaged with one another and pivot relative to each other about a pair of spaced-apart upper and lower pivot pins. A bracket protrudes outwardly beyond left and right edges of the upper bar, and a continuous arcuate groove extends through the bracket so that left and right portions of the groove extend beyond the left and right edges of the bar. Left and right stop pins are releasably inserted in the left and right portions of the groove, and the stop pins can be moved to independently desired locations in the groove and tightened by set screws to set the angle of travel of the upper bar.

Abstract: The joint of this invention is pivotable and lockable about two perpendicularly intersecting axes. It is particularly suitable for a reading stand for patients confined to bed. Be means of the joint, the supporting surface of the reading stand can be adjusted as to slant as well as transverse tilt. The joint comprises a T-shaped component (12) supported in bearings (11) so as to be tiltable and lockable about its cross beam. The bearings (11) are mounted on a base plate (10). The base plate (10) itself is pivotable and lockably secured to a support plate (20). In order for a sick person to be able to adjust the joint with a minimum of physical exertion, locking levers (14 and 23) are provided for each of the two adjustable positions. The locking is effected by detent means (13--13' and 17-26).

Abstract: A swivel assembly comprises a housing having a bore extending therethrough along a central axis. The housing has an end wall with an opening about the axis extending therethrough. A generally spherical swivel member is rotatably and swivelly disposed in the bore and includes an extension protruding through the opening. The portion of the extension within the opening is substantially smaller in transverse cross-section than the opening to permit limited swivel movement of the swivel member in the housing. The bore has first and second sections. The first section has a smaller diameter than the second section and thereby forms a wall. A stiff resilient element is provided between the wall and the swivel member for preventing movement of the spherical swivel member when subjected to a heavy load.

Abstract: Relative rotational movement is allowed between two longitudinally extending articulated members connected by a joint while at the same time longitudinal relative translation of the members is restrained. Each joint is composed of two substantially identical halves with each half having parallel semi-cylindrical slots provided therein cooperating with the semi-cylindrical slots of the opposite half to form cylindrical apertures for receiving the longitudinally extending articulated members. Each semi-cylindrical slot has a circumferential groove about its periphery. The grooves of cooperating semi-cylindrical slots meet to provide a complete circumferentially extending groove for receiving a pin inserted through the member received in that aperture. In this manner, rotary motion of the longitudinally extending member is allowed to a full 360.degree..

Abstract: An improved shuffleboard cue is disclosed having a handle member and yoke comprising a first and a second arm extending from the handle member. A first and second pin extend from the first and second arms for receiving a first and a second pusher for contacting a shuffleboard disc. A first and a second clip cooperates with the first and second pins to removably secure the first and second pushers enabling the pushers to be interchanged or replaced on the shuffleboard cue. The first and second pins pivotably mount the first and second pushers on the yoke of the shuffleboard cue. The handle member may optionally comprise a telescopic feature incorporating an improved rotatable locking means for locking a first handle member portion relative to a second handle member portion. The foregoing abstract is merely a resume of one general application, is not a complete discussion of all principles of operation or applications, and is not to be construed as a limitation on the scope of the claimed subject matter.

Abstract: A folding arm rest for attachment to individually mounted seats of the type commonly provided in automotive and marine vehicles. The arm rest includes an elongated strap secured beneath the seat so as to extend laterally therefrom. An upstanding standard is carried on the extending end of the strap and an arm rest is foldably carried atop the standard.

Abstract: A saw buck bracket includes a pair of bracket elements disposed with their web portions in abutting surface contact and having parallel sidewall portions extending perpendicularly to their web portions along two opposite sides thereof. The web portions of the bracket elements have an arcuate slot with the slots of the cooperating bracket elements being disposed at opposite ends of the sidewall portions. Between the arcuate slots is a large diameter pivot provided by a circular aperture in one web portion and a circular lip on the other web portion which extends through and is secured behind the one web portion. Rivets seated in one web portion are slidable in the arcuate slot of the other to define the limits of pivoting of the bracketelements and to assist in maintaining the bracket elements in assembly.

Abstract: An internal hinge for use with first and second members such as the front and back legs of ladders in which there is a generally tubular means having a first portion adapted to be inserted into an aperture in the first member and a second portion adapted to be inserted into a second aperture in the second member. The apertures are aligned and adjacent one another and in the first portion there are two peripheral slots opposite one another through which a rigid pin passes, the ends of the pin being fastened to the first member. The second portion has two aligned transverse apertures through which a second pin is passed from outside the second member. Other embodiments include detented slot means for allowing selected angular positions of the legs, non-round tubular means, three-pin versions allowing two members to pivot with respect to a third, etc. Other embodiments include plant stands, easels, saw-horses, collapsible tables and collapsible seats.

Abstract: A swivel joint is designed to provide limited and controlled movement in two orthogonal planes running through its symmetrical center. The three major parts of the swivel joint are molded from a material composition of polycarbon-glass-teflon. A swivel top mounts to the object to be provided with controlled movement. A swivel bottom mounts to a support. The swivel top and bottom are held together by a large, curved wafer and a nut and bolt arrangement. The swivel top and bottom interact with each other to provide controlled limited movement in the two orthogonal planes, simultaneously.