Abstract: The present invention discloses an apparatus for hand operation of throttle and brake pedals including two (2) adjustable length rods having handles on one end and throttle and brake pedal engagement devices on the other ends, said rods are held together by an anchor bracket in close proximity, such that, the user of the apparatus can manipulate the brake and the throttle pedals with one hand.

Abstract: An improved footrest unit is provided for use with a wheelchair or the like for supporting the foot and leg of a person using the wheelchair. The footrest unit includes an elongated leg tube having an upper end joined to an upper frame sleeve adapted for in-line rotatable connection between vertically aligned frame members of a wheelchair frame, and a lower end carrying a footplate for supporting the foot of a person using the wheelchair. The entire footrest unit is rotatable about a central axis of the frame sleeve and relative to the wheelchair frame for swinging movement between a normal operating position at the front of the wheelchair and an out-of-the-way position at one side of the wheelchair. Lock members are provided for releasably locking the footrest unit in the normal operating position. Two of the footrest units are normally provided for each wheelchair for respectively supporting both feet of a wheelchair user.

Abstract: A foldable pedicab has a foldable assembly which includes a main frame, two back frames mounted rotatably on the main frame, two seat frames mounted rotatably on the back frames respectively, two armrest members mounted rotatably on the back frames respectively, and two footrests mounted rotatably on the main frame. The seat frames are locked releasably on the main frame. The armrest frames are locked releasably on the seat frames. A swing wheel is mounted removably on leading end of the foldable assembly. Two main wheels are mounted removably on opposite sides of the foldable assembly. If necessary, a driving wheel assembly may be mounted removably on tail end of the foldable assembly so that the pedicab can be drived by a person riding on the driving wheel assembly. In absence of the driving wheel, the pedicab can form a hand-pushable wheelchair.

Abstract: A shank mounting arrangement for a disk hiller or similar implement which provides simple and precise angular adjustment of the shank independently of vertical adjustment. An upright slotted tube is fixed to a support beam and an upright apertured shank is slidably received in the tube. An adjustable collar including a plurality of holes adapted for alignment with the slots in the upright tube is mounted for rotation with respect to the upright tube, and a pin is inserted through the holes, slot and an aperture in the shank for retaining the shank in a preselected one of a plurality of vertical positions relative to the support beam. The collar may be rotated independently of vertical adjustment to change the angle of the shank.

Abstract: A push rod for a baby carriage comprises lower rods (6), a handle (7), a transverse rod (11), a transverse rod urging spring (14), slider (16), connecting members (20), connecting member urging springs (31), hooks (3), fitting member (23), fitting member urging springs (24), and operating levers (10). When the operating levers (10) are in the first position, the locking pin (48) of each operating lever (10) fits in a locking hole (39) formed in the lower rod (6) while the fitting member (23) fits in an engagement hole (21) formed in the connecting member (20). In this state, if the transverse rod (11) is moved upward, the connecting members (20) and hooks (3) are moved upward, whereby the engagement with pins installed on the baby carriage body is canceled. When the operating levers (10) are in the second position, each locking pin (48) is disengaged from the locking hole ( 39) while the holder portion (45) of the operating lever (10) presses the fitting member (23) out of the engagement hole (21).

Abstract: A convertible crib which has a frame with four upright corner posts, includes a leg for each corner post which is vertically movable for adjusting the height of the frame. Each corner post has a plurality of guide elements which are received in a guide channel provided in each of the legs. Bolts extend through holes in the legs and can be threadably engaged with the guide elements for holding the legs at a selected vertical position on the respective post. A plurality of holes are provided along the length of the legs so that the different set of holes can be selected to adjust the vertical height of the frame.

Abstract: A folding chair is provided comprising means for holding the chair in the opened out position, which means are foldable, means for locking these holding means in the opened out position, which comprise a bar, a slide mounted for sliding on said bar and coupled to said holding means so as to prevent said holding means from folding up again when it occupies an end position along the bar and for allowing such folding up when it leaves this end position and slides along the bar, means for locking said slide in said end position and corresponding unlocking means. Said unlocking means comprises a rod, mounted for moving on the chair so as to be able to be brought into a position in which they cooperate with said locking means for unlocking said slide.

Abstract: A dismountable structure comprising at least one structural part having a female socket provided with at least one transversely extending first hole and at least one structural part having a male socket provided with at least one transversely extending second hole. The sockets are so sized and shaped that each male socket is receivable in each female socket in a locking position in which at least one second hole is aligned with at least one first hole. The structure including fastening means having at least one resiliently displaceable locking element for interlocking one female socket and one male socket, when they are in the locking position, by at least one locking element extending from inside the male socket through the aligned holes of the two sockets.

Abstract: A segment connector to connect two segments of a modular ladder which have through holes near ends of the segments includes: a connector housing having a top open end, a bottom open end, and a side wall, the connector housing being sleeved partially over one of the two segments through one of said top and bottom open ends; a rivet insertable through rivet holes in the connector housing and the sleeved segment to pass completely therethrough to fix the connector housing sleevedly on the segment; a hook means rotatably mounted on the rivet inside the segment, the hook means including a releasing button means; and a spring means wound around the rivet and connected to the hook means to bias the hook means to project out of the connector housing; wherein, when the connector is further sleeved on the other of the two segments, the hook means normally is biased to pass holes of the segment and to project out of holes of the connector housing means, whereby the segments and the connector are firmly engaged together,

Abstract: An extendible roller skate has a support structure constituted by two mutually telescopic parts. Releasable fixing means are provided for securing the support-structure parts in fixed relative positions corresponding to a desired length of skate. These fixing means comprise a series of notches provided on one support-structure part, and a cooperating toothed member mounted on the other part of the support structure. This toothed member is mounted for movement towards and away from the notches of the notched support-structure part, movement towards the notches being opposed by a spring. A cam-shaped lever is provided to press the toothed member into engagement with the notches. Operation of this lever enables the rapid securing together and release of the two parts of the support structure.

Abstract: An adjustable table with a bulkhead bracket (20) permanently mounted on the wall or vertical surface of a watercraft, recreational vehicle, or the like. A davit shaped arm (30) slips into the bracket (20) and is axially rotatable, with detents (34) interfacing into notches (24) in the bracket for placement. A top attaching bracket (40) slips over the arm (30) on the horizontal end with detents (34) penetrating a pair of holes (42) to maintain stability and achieve adjustment. A top (50) is permanently secured to the top attaching bracket (40) providing a flat work surface and rotatable 360 degrees from the wall, also tilting 90 degrees horizontally for access.

Abstract: Lock mechanism includes a first sleeve on the inner end of the outer telescoping member having a forward extension with a non-circular central passage therethrough for close sliding receipt of a non-circular external surface on the inner tubular member to prevent relative rotation between the telescoping members. The forward extension has an external circumferential groove, and a radial opening extending through the bottom of the groove for receipt of a ball that successively engages a plurality of longitudinally spaced sockets in one of the non-circular sides of the inner telescoping member during relative longitudinal movement therebetween.

Abstract: An automatic twine-wrapping mechanism for a large round baler. The mechanism comprises (1) a twine dispensing mechanism for dispensing twine into the bale-forming chamber of the baler, (2) a reversible hydrualic drive means for cycling a twine arm of the dispensing mechanism back and forth in front of the chamber, (3) a twine wrapping control mechanism (a) for initiating a twine wrapping cycle by sensing the growth of a bale to a predetemined diameter by automatically actuating a pump drive means for driving a hydraulic pump and by positioning a hydraulic control valve to condition the hydraulic drive means to cycle the twind arm and (b) for terminating a twine wrapping cycle by deactivating the hydraulic drive means following the wrapping of twine around the bale. The twine is automatically severed by a twine cutter responsive to the movement of the twine arm following completion of the wrapping of the twine around the bale.

Abstract: An elongated tubular member for retrieving and dispensing deformable balls, such as tennis balls, is provided with retrieving structure at one extremity and dispensing structure at the opposite extremity. The retrieving structure forms an inlet opening having internal projections requiring deformation of a ball being forced through the inlet opening. The dispensing structure forms primary and secondary dispensing openings and a restraining lip preventing inadvertent movement of the lowermost ball through the primary dispensing opening. The dispensing structure also forms a manual access opening, permitting access to the lowermost ball by the fingers of the user to permit dispensing movement of the lowermost ball. The dispensing structure also includes a closure and dispensing cap positionable for closing the dispensing opening to secure balls within the tubular member for storage and positionable to permit dispensing of balls from the dispensing opening.

Abstract: A handle height adjusting mechanism includes a handle with an upper rod portion having a grip, and a lower rod portion for slidably supporting the upper rod portion. The upper rod portion has a lever turnably attached thereto. The lever has an engaging projection adapted to fit into engaging holes of the lower rod portion. The lever is constantly urged by springs in a direction which allows the engaging projection to fit in any one of the engaging holes. The upper rod portion has a stopper turnably attached thereto preventing a cancellation of the engagement between the engaging projection and an engaging hole. The stopper has a presser portion, and brake portions for contacting the lower rod portion when the presser portion covers the lever, so as to stop the turning movement of the stopper. Thus, when the engaging projection is in engagement with an engaging hole, the turning movement of the lever is inhibited and hence the engagement between the engaging projection and the engaging hole cannot be canceled.

Abstract: A locking mechanism for extendible telescoping tubular members formed with radial, axially aligned openings. The locking mechanism comprises a hollow housing that surrounds the exterior wall of the outer tubular member. The housing is adapted for movement in the axial direction of the telescoping tubular members along the exterior wall of the outer tubular member. Disposed within the housing is at least one spring loaded lever that pivots about a fulcrum in the housing. Fixed to the opposite end portions of the lever, respectively, are oppositely directed plungers. When the radial openings of the telescoping tubular members are in register, the locking plunger enters the registered openings to restrain axial displacement between the telescoping tubular members.

Abstract: A spring loaded button, positioned interiorly of an inner tube, protrudes through a hole in the inner tube into latched relation with a preselected one of a series of longitudinally spaced holes in a telescoped outer tube. The button is manually depressed inwardly of the outer tube when the relative position of the inner and outer tubes is to be changed, the button thereafter being released to spring out through another hole in the outer tube to hold the tubes in a different relative position. A catch lip is mounted on the outer end of the button. The catch lip is sized to engage the edge of the outer tube's hole in the event of a slight longitudinal and/or oscillatory movement between tubes to tend to impede or hinder premature and undesired unlatching during normal use of the tubes. But the catch lip is not sized to prevent manual unlatching movement of the button against the spring bias when a position change between tubes is desired.

Abstract: A hospital bed step which allows a patient to mount or dismount a hospital bed with ease and safety. The step clamps onto the upper bed rail with thumbscrews and rests upon the lower bed rail preventing downward and inward rotation. The step may be re-adjusted to any convenient height by removing a locking bar and reinserting the bar through aligned holes in a step clamp and in an adjustable step support rod. The step may be rotated under the bed for safe, convenient storage.

Abstract: A luggage cart of the type which unfolds from its storage into its luggage-carrying condition and vice versa, and in which the extending and collapsing handle is the principal space-saver, having the improvements of (1) a spring-biased detent to hold the handle in its extended position and a detent release to cause withdrawal of the detent preparatory to collapsing the handle, and (2) a novel plastic hinge to establish and support the luggage-carrying platform of the cart.

Abstract: A worktable, particularly an office desk, having a top adapted to be adjustable as to height and inclination. The top is supported on four vertically adjustable columns, each of the two columns of the pair of columns in front and the two columns of the pair of columns in the rear are jointly adjustable in guides provided in the trestle. To selectively adjust the height and inclination of the table top, latch receptacles are provided on all columns spaced along their length to receive compression spring urged locking pins installed in the trestle. Each of the pair of support columns is associated with a lever mechanism by means of which each pair of support columns can be rotated, the latch connection unlatched and, upon adjustment of the pair of columns, the latched position re-established.

Abstract: An angle adjustment mechanism for an implement mounted on a vehicle, such as a bulldozer having a C-shaped frame which pivotally supports the dozer blade at the forward end of the vehicle for angled movement. The side frame portions include slide members mounted on rails which are pivotally interconnected with one of the opposed sides of the implement. The rails each include a plurality of spaced horizontal slots or openings at predetermined locations, and the channel-shaped slide members each include a downwardly opening slot which is alignable with one of the openings in the rails. The slide members are locked to fix the angled position of the implement by horizontally oriented tapered anchor pins receivable through the slot in the slide member and one of the aligned openings in the rails.

Abstract: A ball locking mechanism for the releasable locking of a movable part comprises a locking or arresting ball arranged in at least one bore of a stationary or fixed part or component and can be pushed, by means of a slide member, into one of a number of bores of the movable part or element, so that such movable part can be locked in place. For unlocking, the slide member is displaced until a bore thereof comes to lie essentially coaxially with respect to the remaining bores. Then, the ball moves out of the aforementioned one bore of the movable part. The movable part can then be displaced until a further similar bore thereof comes to lie essentially coaxially with respect to the bore of the fixed part. By means of the pressure of a spring, exerted upon the slide member, the ball then is again pushed into this further bore.

Abstract: An elastic ring for maintaining a pin in a hole formed in a socket and work drive shaft of a rotary tool. The ring has integral fingers which project into the ends of the hole so that the pin cannot dislodge the ring by centrifugal force when the tool is operating at high speed. Several variations of the ring include weighted areas at portions of the ring midway between the fingers, which areas counterbalance centrifugal force on the ring to supplement holding force of the fingers upon the pin.

Abstract: Mechanism for stepwise adjustment of the distance between a primary element, attached to one part of a chair, and a secondary element attached to another part, characterized by: (a) two stop slides mounted on the primary element to slide in the direction perpendicular to the adjustment direction, between an opening position and a locking position, (b) a number of stop recesses in each stop slide, one above another in the adjustment direction, placed on a first side of each stop slide which faces the other stop slide, and open to the first side, with the stop recesses of the two stop slides lying opposite one another in pairs, (c) an elastic element for pushing the stop slides into the locking position, (d) a bolt passing between the stop slides, perpendicular to the adjustment direction and to the direction of displacement of the stop slides attached to the secondary element, and (e) a spreader mechanism with a mover mounted on the primary element such that it can be shifted parallel to the adjustment directi

Abstract: A foldable, portable bicycle in which the handlebar, its elongated post, the seat assembly, the pedal crank and the frame are foldable quickly and easily into a compact and regular-shaped package that is easily portable and storable, and are unfoldable with similar speed and ease into a safe, durable and comfortable bicycle that accommodates adults of normal size. The frame is designed with a low profile that is substantially the same in height and thickness as the dimensions of the wheels and their supports, and the handlebar and seat assemblies extend upwardly to normal height, but fold and collapse, along with the pedals, to substantially within the confines outlined by the folded frame.Quick release latches are provided for the handlebar post, the seat post sections, the frame hinge and the pedal hinges, and the pedal cranks are designed for effective performance and easy, compact folding.

Abstract: An adjustable steering column includes both tilting and telescoping movement. For telescoping, the steering column and to a telescope latch device which selectively engages one of a series of telescope detents. The tilt adjustment includes a slide component pivotally connected to the steering column and movable with respect to fixed vehicle structure, there being a series of detents in an edge of the slide component. Two or more separate and individually movable latches are provided on a pivotal actuating rod adjacent to the detents of the slide component. The spacing between adjacent latches is different from that between adjacent detents, so that only one latch is engaged in a detent at any one time. All latches are retracted by pivotal retracting movement of the actuating rod, and when the tilt is adjusted, a different latch engages in a detent before the just-disengaged latch reaches the next detent in the direction of movement.

Abstract: A clutch mechanism for use in an automatic steering system is disclosed. The clutch mechanism allows an operator to manually override the automatic steering mechanism by use of the conventional steering gear. It also prevents damage to the automatic steering mechanism, which might be produced by large displacements in a steering gear feedback mechanism. Both angular and linear displacement dissipation devices are described.

Abstract: A slide track structure for supporting a passenger seat consists of a U-shaped track disposed completely within a square tube supported on the track by balls arranged in the U-track between waved guide strips mounted opposite each other on the track and the square tube and forming a channel receiving the balls. At least one of the guide strips is resiliently supported to bias the square tube so as to cause engagement of the flat adjacent surfaces of the U-track and the square tube when no load is carried by the track. The track is mounted on support bases projecting through slots in the square tube to permit movement of the square tube relative to the U-track.

Abstract: A system for vertically adjusting bicycle handlebars comprising a handlebar-carrying, tubular stem slidably receivable within the front fork tube of a bicycle which latter internally is provided with a stationary tube for disposition between the stem and the front fork tube. There is a vertically presented lever within the stem and adapted for swingable movement intermediate its length by means of a transverse pivot pin; there being a latching pin at the lower end of said lever for selected locking reception within openings formed in stationary tube. A pull link having a control knob externally of the stem is secured to the upper end of the lever to control the movement of the latter.

Abstract: A structural joint suitable for a frame member for furniture, e.g. a leg for a work bench, comprises two tubular members 10, 11 slidable one inside the other. Each member 10, 11 has a longitudinal slot 13 through which a wing nut 16 is passable. The members are secured by engaging a screw 17 in the nut 16 which is so long that it cannot fully rotate inside the inner member 11. Preferably, the slot 13 has enlarged portions 14 which alone can pass a boss of the nut 16.

Abstract: A device for attaching an article, such as an armrest, a hand grip, etc., to a base surface is disclosed. The device comprises an attachment clip and an insert which is receivable in an aperture in the clip. The clip is secured in an opening in the base surface. A dentate structure is provided either on the insert or in the attachment clip, and a locking device is provided on the other of the insert or the clip to engage the dentate structure, thereby to secure the attachment clip and the insert together. The locking device preferably is a suitably shaped spring. The insert is either tubular in shape, or a longitudinal segment of a tube. Rotation of the insert to one orientation disengages the dentate structure and the locking device, enabling insertion and removal of the insert. Rotation of the insert to another orientation engages the dentate structure and the locking device for locking the insert against longitudinal shifting.

Abstract: An adjustable support device for appliances being comprised of a housing with top and bottom aligned openings therethrough and which is attached to a support member by a clamp mechanism. An elongated support member or tubing which is provided with a plurality of aligned openings one side thereof passing through the opening of the housing and is in contact within the housing with a pair of upper opposed rollers and a lower roller being in contact with only one side of the member. A locking mechanism is pivotally mounted within the housing and is co-operable with the openings in the elongated support member and is provided with a guide device, such as a roller, which extends outward therefrom and is in contact with the support member.

Abstract: An extension handle for a tool such as a paint roller, paint pad or the like includes a first tubular member including an attachment device for attaching a paint roller or the like thereto. The extension handle further includes a second tubular member telescopically mounted within the first tubular member. The second tubular member includes a detent mechanism that engages one of several detent capturing devices on the first tubular member thereby defining a plurality of stops allowing adjustment of the relative position of the first and second tubular members to provide the extension feature of the handle. The handle further includes an alignment structure including a groove in one of the first and second tubular members and a tongue in the other of the first and second members that engage each other to align the first and second tubular members and the detent and detent capturing mechanism relative to each other.

Abstract: A folding chair and cart structure having an upright frame and a transverse member pivoted thereto, one end of the transverse frame forming a seat portion and the other end extending beyond the upright frame and carrying a pair of wheels, a sheet of canvas secured to the upright and transverse frames to form a seat and a track for removable engagement with the wheels. The structure functions as a cart by merely tilting the upright frame to a horizontal position and the entire structure is foldable into a compact unit for transport and storage.

Abstract: A telescoping steering assembly having an upper column supported by a lower column for axial movement between two extreme positions. The upper column carries a lock pin located in a groove formed in the lower column, and the lock pin is relatively movable into one of a plurality of openings formed in the groove to lock the upper column in an adjusted position.

Abstract: A slide rail assembly (18) and slide plate (20) are used, for example, to position an implement (14) of a work vehicle (10), such as a bulldozer (14), at various angles. The bulldozer connected slide plate (20) moves along a vehicle connected rail (22) of the rail assembly (18) to a desired position of the bulldozer (14). A pin (50) is positioned through openings (48,52) in the rail (22) and slide plate (20) to maintain the position. The pin (50) or rail (22) can sometimes fail owing to working loads exerted on the bulldozer (14). Support members (54) each having pin receiving openings (56) in register with respective rail openings (48) are connected to the rail assembly (18) to increase bearing support area of the pin (50) and to strengthen the rail assembly (18). The support members (54) also each have openings (58) aligned with openings (44,46) in the rail assembly (18) for relief of material packed into the rail (22) and into the pin receiving openings (48,56).

Abstract: An exercycle (10) having a generally continuous U-shaped frame (12) with two upwardly extending posts (14, 16) bridged by a substantially linear connecting portion (18) positioned closely to and paralleling the floor. A seat (24) is attached to the end of one of the posts (16) and handlebars (20) are secured to the end of the other post (14). Pedals (84, 86) are affixed to the seat post (16) between the seat (24) and the connecting portions (18) of the frame (12). A wheel (88) is disposed rearwardly of the seat post (16). A drive mechanism (91, 92) coupled between the pedals (84, 86) and the wheel (88) serves to impart rotational movement to the wheel (88) when the pedals (84, 86) are moved by the user. The exercycle construction provides an unobstructed passageway between the handlebars (20) and the seat (24) to facilitate easy mounting and dismounting of the apparatus by the user. The handlebars (20) and seat (24) are provided with unique adjustment assemblies that can be used without needing tools.

Abstract: A three-part extension handle includes only two interfitting telescopic parts which provides a strong handle for a small heavy-duty collapsible hand truck. The handle has great strength. The two-part handle is fixable at the end of the upright support and includes means that release the locked telescopic portions. Collapsing the handle is the reverse procedure, leaving the handle firmly locked closed.

Abstract: A bed frame of adjustable width includes a pair of side rails and a pair of end rails extending transversely between the side rails, with each end rail having a pair of elements, and one of the elements being provided with a series of teeth. An L-shaped pawl is mounted to one of the elements, has one leg for engaging the teeth, and a second leg engageable by a user. A thin, flat, leaf spring has one end secured to the pawl and an opposite end for engagement with the end rail.A bracket is provided for limiting transverse movement of the box spring relative to the side rails. The bracket is secured only to a vertical leg of the side rail so that the fastener which secures the bracket to the side rail extends no higher than the top surface of the side rail or the top surface of the portion of the bracket overlying the side rail.

Abstract: A handlebar height adjustment assembly for a bicycle for use with a bicycle having a vertically presented head tube, a stem, and with handlebars engaged to said stem comprising a vertically presented stem tube engaged to the upper portion of the stem and projecting downwardly into a head tube for axially reciprocal shiftable movement relative to the head tube. The stem contains a passage communicating with the interior of the stem tube, with there being a control rod extending downwardly through the stem passage and into the stem tube. A fork tube surrounds the stem tube and is fixed against relative rotative movement with respect to the stem tube; a latch member interengages the control rod and the stem tube for joint shiftable movement thereof and with the latch member being selectively engageable with the fork tube through shifting of the control rod for presenting and maintaining the handlebars in predetermined vertical relationship with respect to the head tube.

Abstract: A device for exercising an infant while walking characterized in that connection metal fittings having open outer sides are fastened to an upper portion of right and left side rods which constitute resilient lower legs formed in a V-shape, hooking holes formed on the opposing side walls of said right and left connection metal fittings in the vertical direction maintaining a distance between the upper and lower legs, said hooking holes being communicated by a path narrower than the diameter of said hooking holes. A horizontal rod of an upper leg folded in a U-shape is inserted in said right and left connection metal fittings. Hooking rods which fit into the hooking holes are attached to the right and left side portions of said horizontal rod thereby to construct a leg member, and the thus constructed leg member is fitted to a plate ring having wheels and to a table plate on which is mounted a saddle.

Abstract: PCT No. PCT/US 78/00250 Sec. 371 Date Dec. 21, 1978 Sec. 102(e) Date Dec. 21, 1978, PCT Filed Dec. 12, 1978, Ser. No. 014,018, PCT Pub No. W080/01296 PCT Pub. Date Jun. 26, 1980.A slide rail assembly (18) and slide plate (20) are used, for example, to position an implement (14) of a work vehicle (10), such as a bulldozer (14), at various angles. The bulldozer connected slide plate (20) moves along a vehicle connected rail (22) of the rail assembly (18) to a desired position of the bulldozer (14). A pin (60) is positioned through aligned openings (48,62) in the rail (22) and slide plate (20) to maintain the position. The pin (60) or rail (22) can sometimes fail owing to working loads exerted on the bulldozer (14). A plurality of bushings (50) are each positioned in a respective rail opening (48) and maintained substantially fixed in order to increase bearing support area of the pin (60) and to strengthen the rail assembly (18).

Abstract: An angled bulldozer blade for an earthmoving machine is operatively connected to a slider assembly slidably carried on a rail fastened to each side arm of a C-frame. Removable pins engage with each slider assembly and pass into aligned apertures of a plurality of prelocated apertures in the rail to position the slider assembly for setting the blade in a desired angled position. Self-locking latches are provided for retaining the pins in position. Eight apertures in each side rail are located so as to provide five positions for the slider assembly.

Abstract: A parking apparatus is used for enabling the driver to move the rear end of a vehicle laterally out of a row of vehicles into a parking spot. For this purpose the vehicle is equipped with a lifting mechanism on auxiliary wheels so arranged that the rear end of the vehicle may be lifted off the ground with its ordinary wheels. The engine power may be used for this lifting of the vehicle. Once the ordinary rear wheels are off the ground the vehicle may be shifted in a direction extending substantially perpendicularly to its longitudinal axis without maneuvering as is normally required for so-called parallel parking between two vehicles spaced from each other longitudinally. The front wheels would be sharply turned in the direction toward the parking spot.

Abstract: An adjustable column with a pair of telescopically coupled members with a spring biased latch on an inner member which selectively engages notches along a longitudinal slot in the outer member. A manually tightenable lock secures the members together in a direction approximately parallel to the latch's movement. The lock also includes the protruding head to act as a pushbutton for disengaging the latch.

Abstract: A locking element for securing two interfitting or cylindrical members or tubes together comprising a helical or curved flat spring having an elongated recess at one end thereof and an inwardly turned pin adjacent the other end thereof, each of said cylindrical members having an aperture therein, said apertures adapted to be aligned and said pin adapted to be inserted through said recess and aligned apertures, the spring member compressively locking the interfitted members securely together, said spring element being secured in compressive engagement with the outermost cylindrical member when the pin is removed from the locking engagement with the interfitted members.

Abstract: A bicycle seat support comprises an outer tubular member and an inner tubular member telescopically slidable therein, the inner tubular member protruding from the open upper end of the outer tubular member and having the bicycle seat clamped thereto. A compression spring is located within the outer tubular member to urge the inner tubular member upwards and resiliently resist downward movement of the inner tubular member and bicycle seat, to act as a cushion for the bicycle seat. A lock is provided, at the top end of the outer tubular member, whereby the inner and outer tubular members can be locked together to render the spring inoperative, the lock being manually operable and within easy reach of the user riding the bicycle.

Abstract: A store display fixture for hanging garments and the like is disclosed hag at least one hangrod affixed to at least one downwardly extending rectangular or round or square tube in telescopic engagement with another rectangular tube. The inner tube includes a compression spring-biased plunger projecting therefrom and through one of a column of openings vertically spaced apart along the outer tube. The end of the plunger is beveled to form both an upward and a downward inclined surface such that the tubes are locked into place against collapse during use but may be extended by merely pulling the downwardly extending tube upward. The tubes are retractable by manually depressing the plunger and allowing the downwardly extending tube to slide into a lower position.

Abstract: A bracket arrangement for mounting a handrail onto a support at variable predetermined spacing therefrom.

Abstract: A combined tiller extension, holding and controlling device for watercraft embodying an elongated tubular member removably attached at opposing ends to a vessel coaming and tiller, and including spring loaded telescoping and detent retained sections whereby the tiller is extensibly operable and is retained on a predetermined course, but permitting of limited lateral deviations therefrom. In addition, manual rotational control of the tubular sections enables finer course rudder adjustment within such a course.