Abstract: An improved steering assembly for a tricycle comprises a front fork whose tubular stem is received in a head tube and has a flat area which is engaged by an internal projection extending from the wall of the head tube toward the head tube axis so as to limit the angular excursions of the fork about that axis and thereby prevent the tricycle from tipping over due to oversteering.

Abstract: The invention herein pertains to exercise equipment and particularly to an exercise bar which is placed long the shoulders, behind the neck of the user for various torso exercises. The exercise bar comprises a longitudinal member with weights on either side of the neck portion that can be slidably moved therealong or exchanged depending on the degree of resistance desired. One version of the exercise device includes a wall mount having a motorized system for electrically adjusting the weight elements along the longitudinal member while mounted.

Abstract: A water actuated outdoor fan which includes a plurality of radiating blades for creating a current of air, and a water turbine for converting the kinetic energy of moving water to mechanical power to operate the plurality of radiating blades.

Abstract: An improved, self energizing bicycle saddle post clamp easily operated by local or remote control from a handlebar lever. The design is self energizing, with holding action increasing with load. No adjustment is required; small variations in post size or wear are self compensating. Basically only one simple moving part is involved.

Abstract: A cable length adjustment device for adjusting a cable comprising an elongated member connected to the core of the cable, a locking member formed to prevent translatory movement of the elongated member when in a first locked position, and allow for translatory movement of the elongated member in a second unlocked position, and a housing substantially encasing the locking member.

Abstract: A motion transmitting remote control assembly (10) which includes a conduit (12) and a motion transmitting core element (14) moveable longitudinally within the conduit (12) to transmit motion. A slider member is slidably disposed in an adjustment body (26). The slider member (70) moves inward into the adjustment body (26) transversely to a central axis (16) of the core element (14) to a locked position and moves outward transversely to the central axis (16) to an unlocked position to permit relative axial movement between the adjustment body (26) and slider member (70). A terminal receptacle (98) is disposed on the slider member (70) which accepts a control member into coupling attachment transverse to the central axis (16). The control member remains attached to the slider member (70) while the slider member (70) moves to the unlocked position to permit relative movement between the control member and the adjustment body (26).

Abstract: A threaded rod of a variable length has one end connected to a first part of the element to be adjusted. A pivoted detent element cooperates with the threaded rod, with two channels extending diametrically through the pivoted detent element. The first channel has a threaded wall and the second channel has a smooth wall, the second channel forming an angle of preferably about 15.degree. with the first channel. The pivoted detent element is pivotally mounted in a casing and has a protruding tail. A spiral spring is supported between the tail and the casing. The casing further comprises a rear portion connected to a second part of the element to be adjusted.

Abstract: A core length adjuster mechanism provides adjustment for a push-pull cable system having a core disposed within a conduit. The core and the conduit are flexible for much of their length, with the core being a rigid rod at the ends. An end of one of the rods is slidably disposed within a body of the adjuster mechanism. The body has generally rectangular shape, elongated in an axial direction. The body has a means of swivelable attachment integrated into it. The body has a rectangular opening through perpendicular to the axis from a top to a bottom. There are teeth transverse to the axis in the opening on sides paralleling the axis. A clip is disposed in the opening. The clip can be manually moved from an adjust position to an engaged position It has teeth complementary to the teeth in the opening that engage those teeth when the clip is in an engaged position by pressing it into the body. When the clip is in the adjust position, the teeth are not engaged.

Abstract: A motion transmitting remote control assembly (10) of the type for transmitting motion along a curved path by a flexible motion transmitting core element (12) movably supported within a flexible conduit (14). The assembly (10) includes an adjustment member (18) for adjusting the length of the core element (12). The adjustment member (18) includes a housing (20) having a slot (26) therein and a further includes a rack (28) movably disposed in the slot (26). A lockable roller (40) having a periphery (42) tangentially in rolling engagement with the rack (28) interconnects the housing (20) and rack (28). A lock member (48) is movably engageable with the rack (28) or roller (40) for preventing movement therebetween thereby locking the roller (40) in a selected position along the rack (28) to maintain an adjusted core element (12) length.

Abstract: A core length adjuster mechanism provides adjustment for a push-pull cable system having a core disposed within a conduit. The core and the conduit are flexible for much of their length, with the core being a rigid rod at the ends. An end of one of the rods is slidably disposed within a body of the adjuster mechanism. The body was generally rectangular shape, elongated in an axial direction. The body has a member for swivelable attachment integrated into it. The body has a rectangular opening through perpendicular to the axis from a top to a bottom. There are teeth transverse to the axis in the opening on sides paralleling the axis. A clip is disposed in the opening. The clip can be manually moved from an adjust position to an engaged position. It has teeth complementary to the teeth in the opening that engage those teeth when the clip is in an engaged position by pressing it into the body. When the clip is in the adjust position, the teeth are not engaged.

Abstract: A wheeled walker for ambulatory patients and people requiring support while walking includes an adjustable and separable frame and an adjustbable height seat and handlebar. The frame includes a front generally inverted U-shaped section coupled to and supported by fixed front wheels. A height adjustable handlebar is slidably and lockably received in the front frame section. A centrally disposed frame member is curved and directed to the rear. The rear frame section includes a member which adjustably couples to the centrally disposed front frame member and a vertically adjustable seat. The lower portion of the rear frame section is bifurcated and receives a pair of pivotable casters.

Abstract: A bracketless extension rod includes a locking mechanism for holding the rod in place between two opposing support surfaces. The rod includes an inner rod section telescopingly fitted within channel means formed on a outer rod section. The locking mechanism includes a locking plate slidably received within the channel means and a tang means affixed to the locking plate. An extendable lever mechanism is attached to the inner rod section and to the locking plate. The tang permits the rod sections to move only in the direction of extension of the rod by engagement with opposing walls of the channel means. When extended, the lever mechanism places the rod in compression between two opposing supporting surfaces.

Abstract: A telescopic steering column apparatus has a press member for face-to-face abutment or a pair of lock members for two-point abutment and a toggle mechanism which is extended to a straight state and retracted to a bent state so that the length of the toggle mechanism is lengthened in the straight state and shortened in the bent state whereby the toggle mechanism acts as a wedge in the straight state for the face-to-face abutment or the two-point abutment.

Abstract: A telescopic connector which may be varied in length and a method for installing the connector is disclosed. The connector includes telescoping male and female members which are joined by the action of a spring, which functions as a lockring, positioned in recesses in the two members. The spring possesses at least one release finger at one of its ends, the release fingers extending through an opening in the female member. The recess in the female member includes a shoulder portion and at least one cam surface. The recess on the male member may be either a recess comprising a shoulder portion and cam surface or a recess created between threads on the outer periphery of the male member. The cam surfaces restrict movement between the telescoping members until such time as the release fingers are manipulated to expand the spring, causing the spring to position within the shoulder of the female member, providing clearance between the spring and the male member which allows for two-way movement.

Abstract: A coupling for securing a handlebar to a bicycle frame that carries a bowl through which a standpipe is received, the bowl including a bore formed in a center for receiving the standpipe and a hole communicated with the bore, two members received in the hole and in contact with the standpipe, a bolt extended through one of the members and threadedly engaged with the other member so that the members can be clamped together by the bolt and so that the standpipe can be fixed in place by the members.

Abstract: A snubber which inhibits coaxial movement in one direction and prevents shock in a collapsing telescopic pole comprises an outer tube, an inner tube containing an attached end-piece positioned within the outer tube and freely movable coaxially, and a friction snubber, comprising a flexible washer and a fastener device which secures the washer to the end-piece and simultaneously adjusts the expansion of the washer to regulate pressure of the washer against the inner surface of the outer tube.

Abstract: A post holder is provided with a breaking arrangement to hold a post without application or external force even under the influence of gravity. In the preferred embodiment, a post holder is provided with a shoe which contacts the post. The shoe is urged toward the post with a spring, in the preferred embodiment a single convolution spring. Preferably, the shoe has a relatively large face area contacting the post, thereby provide more positive locking of the post relative to the post holder with the application of lesser external force. Ideally, the spring applies sufficient force on the shoe that the post does not move under the force of gravity. In operation, the user may remove the external force, move the post relative to the post holder, and reapply an external locking force, at any time the post being supported by the breaking arrangement. In this way, the user may move the post relative to the post holder with a single hand.

Abstract: A load bar for extension between opposite side walls of a cargo vehicle to restrain the cargo. The bar includes a pair of main tubes pivoted end to end at a toggle joint. An extension tube has a telescopic fit in one of the main tubes to provide length adjustment over a wide range. A clamp may be tightened to rigidly clamp the extension tube in place. The toggle joint may be covered and locked in its straight condition by a sleeve which fits closely yet slidably on the main tubes of the load bar.

Abstract: An adjustable frame includes an outer tubular member and an inner cylindrical member disposed in longitudinally adjustable relation, the inner member being of substantially smaller diameter than the interior surface of the outer member so as to provide an annular space between the two members. Inner and outer adapter rings are disposed about the inner cylindrical member within the annular space. The adapter rings have longitudinally tapered mating surfaces for providing a cam action. A sleeve is threadedly supported from the outer tubular member and engages one of the adapter rings for moving it axially relative to the other ring to thereby create a radial expansion force within the annular space, thus locking the inner cylindrical member in a fixed longitudinal position relative to the outer tubular member.

Abstract: An infinitely adjustable manual control for a lengthwise adjustable automotive steering column of the type having a stationary outer member and an inner tubular member slidable telescopically in the outer member. The manual control includes a housing on the outer member, a clutch element mounted on the housing for radial and lateral shiftable movement, and rack teeth on the clutch element and on the inner tubular member. In a lowered position of the clutch element, the rack teeth mesh to immobilize the inner tubular member relative to the outer member. In a raised position of the clutch element, the rack teeth are disengaged. The rack teeth are oriented at an angle to the longitudinal centerline of the steering column so that the lateral movement of the clutch element in the housing effects longitudinal movement between the rack teeth to assure mesh in all relative positions of the inner and outer members.

Abstract: An adjustable mechanism including a journal portion and a non-continuous ring member that encircles the journal portion. The ring member has relatively displaceable end parts. A lever member extending in a plane normal to the axis of the journal portion is mounted through a pin on one end part and through another pin on the other end part and the lever member is swingable relative to the ring member to leverage the parts in either of opposite directions. An adjustably positioned member is provided to produce adjustably controlled displacement of the end parts of the ring member.

Abstract: A clamp 10 comprises a moulded plastics hollow member 11 for receiving a first elongate member 13. The member 11 has external bosses 22 on two opposed sides defining aligned apertures which receive a second elongate member 30 which extends through the member 13. The member 13 can be solid with a bore for member 30 or hollow with apertures in opposed sides. One wall of the member has external ribs 18 and a recess in its inner surface in which is a nut in threaded engagement with a stem 23 of a clamp knob 24 so that the member 30 can be clamped between the inner end of the stem 23 and edges of opposed walls of the member 13. The member 11 can have a through bore for member 13 so as to be movable along it.

Abstract: The invention involves a new mirror assembly for large vehicles that enables a mirror to be mounted upward from the vehicle in a first orientation providing a field of view adjacent to the vehicle, and readily adjusted into a second orientation wherein the mirror is outward from the vehicle providing a field of view for behind the vehicle. The assembly includes a rear-view mirror assembly comprising a mirror, a mirror housing, a bracket for mounting the assembly to a vehicle, and a linkage connecting the bracket to the housing. The linkage can be easily rotated relative to the bracket. The mirror housing can be readily disengaged from and reengaged to the linkage thereby enabling a reorientation of the assembly relative to the vehicle. By so doing, an oblong mirror can be mounted to the vehicle in one orientation for driving, disengaged and reengaged in a second orientation for rearward movement of the vehicle.

Abstract: "A tilt telescope steering column assembly comprises a housing supported for tilting movement, a tubular member supported for axial movement in the housing, and a steering shaft supported for rotation in the tubular member. Axially spaced bearings engage the housing and the tubular memeber to take up clearance therebetween".

Abstract: A rope guide for the recoil starter rope of a power lawn mower, said rope guide being adapted for attachment to an extruded mower handle member having a substantially C-shaped configuration without drilling, cutting or otherwise deforming the handle member. The guide comprises a tubular body portion having an inner configuration in substantial conformity with the outer configuration of the handle member and adapted to receive the handle member therewithin in close fitting, sliding relation. The body portion is attached to the handle member by means of a screw passing through a bore in the body portion, through the opening in the handle member and into a threaded plate within the handle member spanning the opening therein. An arm portion extending outwardly from the body portion includes an aperture therein for receiving and guiding the mower starter rope.

Abstract: A cue stick is provided with an extension assembly inserted into the handle end of the stick. The extension assembly includes a tube having internally threaded end portions. A shaft having a threaded locking end is inserted into the tube and threadably engages a first threaded tube end. Rotating the handle end of the cue stick in a counter-clockwise direction disengages the tube first end from the shaft and enables extension of the handle. Again, rotating the handle in a counter-clockwise direction causes the shaft to threadably engage a second threaded tube end thus locking the cue stick in an extended length.

Abstract: A net post for ball games comprising primarily a plurality of hollow tubes which are of different diameters and can be fitted one over the other is disclosed. An adaptor comprising an outer screwed sleeve member and a lining press member is provided for the connection of two hollow tubes. A slidable threading lug is fitted over each of the hollow tubes. By fitting the hollow tubes one over the other, the net posts of the present invention can be reduced in dimensions to facilitate storage, shipment and carrying and can also facilitate adjustment and operation. Moreover, the installation of the net posts and the height adjustment of the net for use are facilitated by the provision of the threading lugs.

Abstract: An arm for a door closer includes a shaft rotatable about a first axis. The arm includes a first arm member having a first end connected to the shaft and rotatable therewith. A second arm member has a first end pivotably connected to a second end of the first arm member and a second end pivotably connected to a mounting bracket. The second arm member includes an open ended axially movable housing member having radially inwardly extending detent. A clamp has a first end forming the first end of the second arm and a second and forming radially expandable jaws of the clamp. The detent on the housing when disposed in a first axial position maintains the jaws in a closed position and when moved to a second axial position permits the jaws to radially expand. A link has a first end forming the second end of the second arm and a second end. A joining member is connected to the second end of the link and extends towards the clamp.

Abstract: An adjustable gas/air feed assembly for a gas burner having a gas conduit section and an aspirator section mounted for telescopic sliding movement relative to the conduit section. The sections are held at a desired telescopic extension by an adjustable seam carried by the inner section of the assembly, the seam being effective to circumferentially close the inner section while permitting limited radial contraction thereof. The inner section can thus be biased outwardly against the outer section of the assembly for holding the sections at a desired extended position.

Abstract: A collapsible cane having a series of interfitting smaller and larger telescoping sections which are interlocked against collapse, when extended, is disclosed. The smaller interfitting telescoping section includes an internal expansion device activated by relative rotary movement between adjacent larger and smaller interfitting telescoping sections for engagement with an inner wall of the larger interfitting telescoping section. The internal expansion device operates against a circumferential depression provided in the larger interfitting telescoping sections enabling the internal expansion device to expand against the internal wall of the larger interfitting telescoping section.

Abstract: An expander mechanism to be used with telescoping tubes which might form, for example, a closet or a shower curtain rod. The mechanism has a bushing with a center threaded opening for receiving a threaded shaft of a bolt. A lock washer, which is resiliently deformable in one direction only, is attached to the head of the bolt. The bolt with the lock washer is threaded into the bushing. The bushing is then mounted on an end portion of a first tube. The first tube is slidable inside a second tube of larger diameter. When the first tube is telescoped within the second tube, an applied axial force causes the washer to deform and thus allows the first tube with the attached bushing, bolt, and washer combination to slide along the inside of the second tube, allowing the assembly of the two telescoping tubes to expand in length. Once the bolt and washer combination has been pulled through the tube in one direction and the axial force is no longer applied, the deformed washer returns to its original shape.

Abstract: A manually controlled adjustable locking mechanism for a cable control system comprising a housing having a rectangular opening extending therethrough and a telescoping member having a rectangular cross section extending into and guided by the opening of the housing. The telescoping member has opposed transversely extending sets of teeth on opposite internal sides and external sides thereof. The housing has a rectangular opening extending transversely and intersecting the first mentioned rectangular opening. The opposed sets of teeth extend downwardly at an angle from the opening. A locking member has a substantially rectangular cross section and is positioned within the transverse opening and is manually movable between a first locking position and a second unlocking position.

Abstract: A telescopically collapsible hand-pulled golf cart comprises a first tubular elongated member which includes bag supports and a pair of parallelogram linkages pivotally mounted at their upper ends to the first member and including wheels at their lower ends. A second elongated member is telescopically slidable in the first member and can be locked thereto. A third elongated member located inside the first member is slidable within the second member. A "Y"-connector is fixedly mounted as the lower end of the third member and has arms which protrude through a slot longitudinally defined on the rear part of the first member. A pair of links join the parallelogram linkages to the arms of the "Y"-connector. The third member is slidable a limited distance within the second member to provide a lost-motion movement to the latter. This allows an adjustment of the second member relative to the first member with no effect on the positions of the wheels.

Abstract: A collapsible cae or the like is disclosed as having a series of interfitting telescoping sections which are interlocked together when collapsed and interlocked against collapse when extended. The collapsible cane includes first interlocking elements for externally interlocking the interfitting telescoping sections together as a unit when collapsed, and also capable of being released, by hand pressure, to permit elongated extension of the interfitting telescoping sections. When extended, second interlocking elements are provided for internally interlocking adjacent telescoping sections together against collapse. The second interlocking elements may also be deactivated to permit collapse and telescoping of adjacent interfitting telescoping sections relative to one another for compact storage, when collapsed, and for subsequent re-engagement with the first interlocking elements to hold the telescoped interfitting sections together as a unit.

Abstract: This invention is a remotely actuated release clamp for a bicycle saddle post, conveniently operated by a lever adjacent to a handlebar grip. When released, the saddle may be conveniently raised by a spring lifter, and lowered by the rider's weight. The unit is lightweight, simple, grips the saddle post firmly and is operable by a small thumb lever at the handlebar grip.No release of the rider's handlebar grip or contortions or shift of the riders body weight is required, hence the saddle height change can be safely made at high speed or without stopping his pedaling.

Abstract: An intermediate shaft subassembly comprises two members--an inner intermediate shaft member and an outer intermediate tube member. The subassembly connects the upper section of the intermediate shaft to the lower section of the intermediate shaft. The two members of the subassembly make a sliding fit, with the shaft member telescoping inside the tube member, and they are connected by a midpoint connection near their junction where they overlap. The midpoint connection comprises a bolt which is positioned through aligned holes through the tube member and an elongated slot through the shaft member. The elongated slot allows the shaft and tube members to be positioned in variable relative positions before the bolt is tightened to lock the two members together. When the bolt is tightened, the tube member is deformed around the shaft member to form a tight connection with minimal rotational lash.

Abstract: An expander for a bicycle seat support post inserted into a tubular socket of the bicycle frame. The post has an expandable collar which is expanded by means of a wedge-like expanding member which projects from the collar and which is moved axially thereinto by means of a tension link. Movement of the link to pull the wedge-like member farther into the collar is accomplished by a screw angularly supported on the post at an angle of less than ninety degrees to its axis.

Abstract: These telescopic energy absorber units have outer tubes threaded into connection with vehicle hard bar bumper or fascia support to permit fore and aft adjustment by rotation of the piston tube of the unit in clockwise or counterclockwise direction.

Abstract: A locking device for securing inner and outer telescoping cylindrical tubes in a selected relationship. A resilient collar attached to one end of the outer tube includes and inner annular flange extending in close-fitting relation between the inner and outer tubes. A locking screw extending through the outer tube is actuatable to bear against and resiliently circumferentially displace the inner flange to lock the inner tube in the desired position. The device is particularly suited for use with adjustable stands such as hospital IV bottle stands and the like.

Abstract: A shifting cable assembly for the gear shift system of bicycles or the like, includes a shifting cable for connecting a manual shifter arranged in the grip zone of the bicycle user to the shift system of the rear wheel of the bicycle, a separate connection part, which is connectable to the shifting cable, being brought out from the shift point. In this shifting cable assembly there is provided a connection assembly which is designed so as to be insertable and self-retaining, on the one hand, and so as to be releasable by hand in a simple manner, on the other hand. For this purpose, there is provided a housing which is connected to the end of the shifting cable, which is taken downwards from the manual shifter, and which is equipped with a sleeve-shaped seat for the manual insertion of a connection part which is provided, for example, with detent elements and which is retained unaidedly and operationally reliably in the seat of the housing by corresponding counter detent elements.

Abstract: Portable, lightweight-construction toy basketball set made of releasably interlocking plastic parts for ease of assembly and disassembly in which backboard structure and a base support are interconnected by an elongated upright standard. An elongated upright is provided which is divisible into separate columns which interfit telescopically and present helically-oriented interrupted threads for ease of selection of upright height and release for further adjustment or separation of the columns. A bracket interconnects a hoop flange to the backboard with the bracket and hoop flange having matching interfitting configurations for yieldably releasing the hoop for angular relative movement with respect to such backboard so as to prevent damage to interfitted parts during execution of a slam dunk play and to permit angular relative movement for manually returning such hoop to normal play position.

Abstract: A mounting structure is disclosed including two pairs of spaced apart parallel rails with a longitudinal slot separating each of the pair. A trackway is formed under each pair of rails and a slider is slidable in the trackway and may be connected to a third rail orthogonally mounted on the pairs of rails, by means of a bolt passing through the slider and engaging a nut in a T-shaped slot in the third rail.

Abstract: A locking mechanism for a telescoping support, such as a tripod leg, which includes an outer tubular section and a slidable inner tubular section is disclosed. The locking mechanism includes a U-shaped mounting bracket conforming to the cross-sectional shape of the outer tubular section and is held against sliding movement along the outer section by lip portions bent outwardly on either side of the bracket. The bracket is further retained against separation from the outer tubular section by a camming lever pivotably mounted between the two arms of the bracket on the side of the leg section opposite the base portion of the bracket, thereby closing the opening of the bracket. The camming lever is pivotable for cammingly engaging the inner tubular section through a window opening formed in the outer tubular section, thereby to lock the two sections against telescoping movement.

Abstract: A stabilizer including a female ring installed on a female tube of the telescopic stand and a male ring installed on a male tube of a telescopic stand. The male ring is put in the female ring and a hole is set on each of two outwardly projecting parallel walls. Inside one of the holes of the female ring is a toothed block which is engageable with another toothed block of a handle so that the tightness and relaxation of the stabilizer is determined by rotating the handle to engage or disengage the two toothed blocks. The male ring further has an opening between the two holes of the male ring in which a spring is set to provide the male ring with a better restoring force.

Abstract: A pivoted blade which has a centrally positioned V-shaped pin-receiving depression combined with a slidable mounting pin which is releasably secured within the depression in the blade. This pin comprises an elongated element which is circular in cross-section at one end thereof, and its other end is flattened at one side and of V-shape on the other side. The other end of the pin has a centrally positioned hole extending therethrough with this hole being centrally disposed with respect to the flattened side and extending through the apex of the V-shaped side. This centrally positioned hole is longer than it is wide with the longer cross-section extending longitudinally of the pin. The mounting pin is mounted at a side margin of the blade with the V-shaped portion of the pin fitting into the V-shaped depression in the blade and with the end of circular cross-section extending beyond the side margin of the blade.

Abstract: A combination umbrella and golf ball retriever which uses the umbrella strut as a socket pipe to accommodate several telescopically nested tubes so as to form an elongated handle for a golf ball retriever. There is an eccentric-grooved stud inserted at one end of the inside tube of each two neighboring tubes. The eccentric-grooved portion of this stud matches with a similar eccentric circular bushing. When the inner tube turns to one direction, the outside part of the circular bushing will press tightly against the inner wall of the outside tube and lock up the two neighboring tubes. An opposite turn at the inner tube will set loose the circular bushing and allow both neighboring tubes to slide in and out freely so as to adjust the length of the handle of the golf ball retriever.

Abstract: A collapsible conveyor comprises a frame supporting a plurality of rollers and a support structure comprising a pair of legs pivotally secured to the frame. The conveyor also includes braces which extend between the frame and the legs and maintain stability of the legs in their extended position. Each leg comprises a first member slidably receiving a second member therein. The second member includes an inclined surface which tapers towards an opposite surface downwardly towards the lower portion of the inserted leg member. A locking plate is pivotally secured to the first leg member adjacent the inclined surface, and is abutted against the upper leg member by a bolt threadably engaged within a mounting plate secured to the hollow leg member.

Abstract: Coupling assembly joining two profiled rails, more particularly for use with a shower partition, the first profiled rail having an opening extending over its entire length and an inner space. A clamping element is mounted in this inner space and has a threaded hole in which a screw threads, the second profiled rail being secured to the first profiled rail by tightening of the said screw. In order to facilitate assembly and make it possible to carry out subsequent mutual alignment of the profiled rails with little effort, there is provided that the clamping element be insertable from the side and at right angles to the longitudinal direction of the first profiled rail through the above-mentioned opening and into the inner space, one leg of the second profiled rail passing through the opening into the inner space. This leg is clamped in a gap which is formed between a bearing surface of the clamping element and a web of the first profiled rail and/or a support element.

Abstract: A nonslip foot assembly for the lower end of a crutch, cane, walker or other walking aid. An expansible sleeve is anchored in the end of the crutch by rotating a threaded bolt in order to squeeze the sleeve between a pair of nuts. The end of the bolt projects out of the crutch and is pivotally pinned to a nonslip foot formed by a rigid disk bonded to a resilient pad having a plurality of projecting fingers. The fingers flex when applied to a hard surface and their resiliency applies a firm gripping force even if the surface is slippery. The fingers are able to dig into carpets and other soft surfaces to provide a firm grip without damaging the surface.

Abstract: Exercise apparatus having locking means for facilitating adjustable positioning of a portion thereof. The exercise apparatus may take the form of an exercise bicycle or other equipment. The locking means are adapted to have a component positioned within a tubular member of the exercise apparatus and receive an adjustable member passing therethrough. The locking means components are adapted to be moved in a path generally transverse to the axis of the adjustable member and are adapted to provide compressive locking action to the adjustable member in the desired position.