Abstract: A wrench quick release apparatus includes a sleeve, a positioning unit, a wrench unit and an elasticity unit. The sleeve includes a channel and an engaging section for engaging to a first plate. The positioning unit inserts in the channel of the sleeve, and includes one end inserted through the first plate and an opposite end protrudes out from the channel of the sleeve. The wrench unit is pivotally connected to the positioning unit and protrudes out from one end of the sleeve. The elasticity unit includes one end pushed against the positioning unit and an opposite end pushed against the sleeve. Accordingly, the wrench quick release apparatus is first engaged to the first plate through the sleeve and then engaged to or disengaged from a second plate.

Abstract: A fixing device for adjusting a telescoping arrangement comprises a seat disposed on an outer telescoping tube, a propelling arrangement disposed on the seat and inserted into limiting slots of an inner telescoping tube, a locking arrangement pivotally disposed on the seat to prop against the propelling arrangement, and a fastening arrangement fixing the locking arrangement to the seat. The movement of the locking arrangement toward the seat pushes the propelling arrangement to position the telescoping tubes, and concurrently an elastic member of the fastening arrangement springs against a fastening member of the fastening arrangement to make a fastening part of the fastening member lock with a fastened member which is disposed on the seat and thus position the locking arrangement, thereby preventing an unexpected slide of the telescoping tubes caused by touching the locking arrangement carelessly and increasing the use safety efficiently.

Abstract: A fixing device for adjusting a telescoping arrangement comprises a seat disposed on an outer telescoping tube, a propelling arrangement disposed on the seat and inserted into limiting slots of an inner telescoping tube, a locking arrangement pivotally disposed on the seat to prop against the propelling arrangement, and a fastening arrangement fixing the locking arrangement to the seat. The movement of the locking arrangement toward the seat pushes the propelling arrangement to position the telescoping tubes, and concurrently an elastic member of the fastening arrangement springs against a fastening member of the fastening arrangement to make a fastening part of the fastening member lock with a fastened member which is disposed on the seat and thus position the locking arrangement, thereby preventing an unexpected slide of the telescoping tubes caused by touching the locking arrangement carelessly and increasing the use safety efficiently.

Abstract: A ceiling fan motor (10) is disclosed which is coupled to a motor adapter (14) which in turn is coupled to a downrod (12) and motor housing (13). The motor adapter 14 has a downrod receiver (45), a motor shaft receiver (46), and three mounting arms (47). The downrod receiver is defined by a tubular cylindrical wall (52) which has a first set screw hole (58) and a threaded, second set screw hole (59) which are aligned with downrod set screw holes (60). The cylindrical wall includes ridges (61) which are positioned on either side of the second set screw hole (59). A threaded set screw (62) extends through the first set screw hole, through the downrod set screw holes, and threaded into the second set screw hole. The threaded set screw has a head (63) with a tapered portion (64) which abuts the downrod.

Abstract: Devices for safely locking collapsible furniture in a fixed configuration. In particular, locks for collapsible furniture which are automatically engaged and require multiple affirmative steps to unlock.

Abstract: The present disclosure could generally provide a system for use with a furniture or desk assembly having an extendible leg assembly and retaining system. In one embodiment, the system could be easily and safely adjustable, while maintaining a particular height and overall structural integrity of a furniture or desk system to, for example, withstand considerable weight and pressure exerted thereto.

Abstract: A universal attachment device for attaching accessories to machinery featuring a center bar having a beveled first end; a base platform attached to the second end of the center bar, the base platform being generally perpendicular to the center bar; side braces disposed on each the first side of the center bar, the second side of the center bar, and the top side of the center bar, the braces are also attached to the front surface of the base platform; a generally hollow and generally trapezoidal attachment sleeve for removably attaching to the center bar via an attachment means, wherein a first slot is disposed in the back adapted to receive the first end of the center bar; brace platforms disposed on the back surface of the base platform near the first and second sides; and one or more lug components disposed on the front surface of the base platform.

Abstract: A mast arrangement having two elongate individual masts. The first elongate individual mast comprises a hollow connector comprising an inner diameter. The second elongate individual mast comprises a protruding connector end. The protruding connector end telescopically engages with the hollow connector end. The mast arrangement also comprises a pin and slot arrangement and collars to connect the masts together and minimize unwanted disengagement of the masts from each other.

Abstract: This disclosure pertains to a lockdown mechanism for an electric drive screw telescoping mast. The lockdown mechanism comprising a plurality of elongated tube sections which are telescopingly attached to each other, each tube section comprising a substantially hollow body. An elongated drive screw is disposed within the hollow body and includes a plurality of threads for extending and retracting the elongated tube sections. A lock subassembly includes a housing and a center hub, the housing comprises a load bearing top and a hollow cavity, the lock subassembly being rigidly attached to said center tube and axially aligned along a central axis with said plurality of elongated tube sections. The center hub is movably engaged within the hollow cavity of the housing and includes at least one locking pin adapted to the center hub that is movably engaged to the structural envelope when the mast is in the lockdown position.

Abstract: This performance stage frame member has a shaped cross-section. The frame member comprises a vertically extending back surface and an outwardly extending shape defining a multifaceted cavity therebetween. The invention also includes a lock assembly comprising an interlocking shape is configured to engage the multifaceted cavity of the outwardly extending shape of the frame member.

Abstract: A coupler for a standoff arrangement for ladders and the like. The standoff arrangement comprises a ladder attachment portion and a ladder support portion, with the attachment portion formed to be releasably securable to a ladder and the support portion extending from the ladder attachment portion. The ladder support portion has a pair of individually adjustable bearing arms, and a coupler is installed in each bearing arm to make the bearing arm universally adjustable in relation to the structure against which the ladder standoff arrangement bears.

Abstract: A tow bar includes a towing hitch member including a pintle hitch and secured to a towing vehicle; a towed hitch member secured to a vehicle to the towed; a head member with a lunette ring; a pair of tow bar legs, each including a proximal end including an outer member with a distal end, and a distal end including an inner member with a proximal end telescopingly displaceable within the distal end of the outer member; a leg connector mechanism pivotally connecting the proximal ends of the tow bar legs to the head member; towed connector elements secured to the distal ends of the tow bar legs and structured to releasably connect the tow bar legs to the towed hitch member; and a locking mechanism structured to automatically and releasably lock each of the tow bar legs in either a stored configuration or a deployed configuration.

Abstract: A mast arrangement having two elongate individual masts. The first elongate individual mast comprises a hollow connector comprising an inner diameter. The second elongate individual mast comprises a protruding connector end. The protruding connector end telescopically engages with the hollow connector end. The mast arrangement also comprises a pin and slot arrangement and collars to connect the masts together and minimize unwanted disengagement of the masts from each other.

Abstract: A cam lock device for replacing the conventional pins connecting a loader mechanism to a prime mover, the device in conjunction with a modified loader mounting bracket, provides an adjustable, easily installable and removable apparatus that allows secure and convenient attachment/detachment of a loader mechanism to a prime mover.

Abstract: A coupler includes a first telescopic member having a first pair of coaxially aligned apertures, and a second telescopic member having a second pair of coaxially aligned apertures. The second pair of apertures is capable of coaxial alignment with the first pair of apertures during telescopic engagement between the first and second telescopic members. A pin member having a head is capable of insertion through the coaxially aligned first and second pairs of apertures. At least one of the second apertures is sized to receive the head therethrough to engage the first telescopic member.

Abstract: A connecting member for releasably connecting a first part to a second part is provided. The connecting member includes a housing and a first locking member. The housing has a first opening and a second opening. The first locking member has a first tab and a first button. The first locking member is in the housing such that the first locking member biases the first tab through the first opening and the first button through the second opening. The first tab is releasably connectable to the first part over the housing when the first tab is biased through the first opening. Further, the first button remains uncovered by the first part when the first part is releasably connected to the first tab.

Abstract: A surgical implant or instrument has two parts, one sliding on the other, the lower part being provided with a threaded bore and the upper part being provided with a passage orifice for receiving a fixing screw. The set screw can be received over its entire length beneath the upper part in the threaded bore and includes, at its upper end, a dog point which is thinner than its threaded part and which is provided with a slit, groove or hexagon socket for a screwdriver, the diameter of the passage orifice being smaller than that of the threaded part and larger than that of the dog point. An elastic device is provided for the implant or instrument which pushes the fixing screw into the fixing position.

Abstract: A clamp system for attaching accessory devices to a railing structure includes a first clamping jaw member and a second clamping jaw member designed to clamp on a railing structure. An accessory mounting device includes a cylindrical collar portion with a plurality of diametrically aligned holes arranged around the circumference. One of the clamping jaw members has an opening, sized to receive the collar portion and one pair of holes that can be aligned with the holes of the collar portion. When the mounting device is in a desired orientation, a pin is inserted through the aligned holes to hold the orientation. A locking nut is mounted on a threaded portion of the collar portion and, when tightened, tends to withdraw the collar portion against the pin, firmly securing the assembly together.

Abstract: A positioning structure of a beach umbrella is provided that includes a positioning apparatus to connect with a lower tube of the umbrella. The apparatus has a flat plate for forcing the lower tube being inserted into ground easily. A handle has a rod to engage with apertures on the tubes of the shaft that can adjust the height of the beach umbrella as desired for increasing utility.

Abstract: An L-shaped tree seat frame includes a forward leg and a side leg on which a rear leg is slidably mounted and limited against relative rotation by cooperating rib and groove deformations in the sleeve of the rear leg and the top wall of the tubular side leg. Foam material filling the side leg includes pin passageways for guiding a locking pin through the sleeve and selected aligned openings in the side leg. The seat includes three spaced apart fingers which allow for a person's hand to grasp a center finger and balance the tree seat while the person's other hand positions the rear leg against the back side of a tree for locking the tree seat to a tree.

Abstract: A rail barricade includes a bottom rail and a U-shaped body frame having a top rail and a pair of vertical rails. A plurality of vertical spokes are located between the vertical rails. The bottom rail further includes an opposing pair of curved ends each having a projection that is received in a notch in one of the vertical rails. The connection is then welded. A foot is pivotally attached to each of the vertical rails. Hooks are attached to one of the vertical rails for attachment of a second rail barricade.

Abstract: A locking device has an enclosure partially securely mounted on a peripheral edge of the outer tube and having a lever pivotally connected to the enclosure; and a positioning rod securely connected to a side of the lever to be driven by the lever and having a head formed on a free end of the positioning rod to correspond to one of the adjusting recesses of the inner tube such that pivotal movement of the lever is able to drive the head of the positioning rod to selectively move away from the corresponding adjusting recess to allow the inner tube to move relative to the outer tube.

Abstract: An adjustable height bicycle seat post assembly comprises a hollow seat post for supporting a bicycle seat slidably supported on plastic shims inside a hollow tube. The hollow tube clamps into the frame of a bicycle. A main spring forces the post upward, but a locking mechanism interconnects the post with the tube in various fixed positions relative to the tube. The locking mechanism includes a foundation and a projection extending from the foundation having a counterbore for guiding a plunger into holes on the post. The locking mechanism adheres to the outside of the tube to bear shearing forces on the plunger. An endcap on the locking mechanism and a top cap on the tube protect the assembly from foreign debris. The locking mechanism may be manipulated remotely using a magnetic switch assembly or manually using a manual assembly.

Abstract: A power tool coupling system for coupling two boom members of a split-boom power tool. The coupling system includes a first section and a second section. The first section is adapted to be fixedly attached to an end of a first one of the boom members. The first section includes an aperture for receiving a locating member on a second one of the boom members. The second section is movably connected to the first section. The second section is adapted to depress the locating member, while the locating member is located in the aperture of the first section, when the second section is moved from a first to a second position.

Abstract: A sod cutter (10) is disclosed including a frame (12) formed by welding the free edges of mount, frame and end plates (46a, 46b 46c) bent relative to one of two side plates (46) to the corresponding edges of the other side plate (48). An axle assembly (160) is pivotal relative to the frame (12) by a depth adjustment lever (198) between a working position where wheels (16) carried by the axle assembly (160) engage tubular members (168) slideably and nonrotatably received on a drive shaft (166) and a transport position where the wheels (16) are spaced from the tubular members (168). A U-shaped handlebar (210) is positionable between an operating position for grasping during operation and a storage position for lifting and handling. A U-shaped control (212) is pivotably mounted in front of and above the U-shaped handlebar (210) for actuating the throttle of the engine (18).

Abstract: A retractable rod assembly includes outer and inner tubes, and a positioning device. An outer tube wall of the outer tube has two outer radial holes formed therein. An inner tube wall of the inner tube has two inner radial holes formed therein. The positioning device includes a mounting block and two spring-loaded retainers. The mounting block is disposed in the inner tube, and is formed with a pair of retainer passages respectively aligned with the inner radial holes. Each of the spring-loaded retainers, which are disposed respectively in the retainer passages, includes a retaining pin and a biasing member for biasing the retaining pin to extend out of aligned ones of the inner and outer radial holes to releasably secure the outer and inner tubes in an extended state.

Abstract: A portable plastic film wrapping system comprises a push-cart having a vertical mast member mounted thereon. A film roll carriage is vertically movable along the mast member, and the film roll carriage is operatively connected to a counterweight which is movably disposed within the mast member. The mast member is provided with a plurality of apertures, and a redundant dual stop pin assembly is engageable within particular ones of the mast member apertures so as to incrementally lockingly retain the film roll carriage at a particular elevations along the mast member such that safe controlled movement of the film roll carriage along the mast member is achieved.

Abstract: A shaft coupling assembly comprising a coupling element including a shaft receiving slot and retainer receiving aperture adjacent the shaft receiving slot; a retainer extendable through the retainer receiving aperture; and an axial shaft body configured to be inserted in the coupling element slot. A safety clip is configured to be retained on the coupling element with a first portion extending toward the shaft receiving slot. The first portion includes a retainer blocking edge and a pair of extensions. The first portion is moveable between an initial position wherein the blocking edge covers a portion of the retainer receiving aperture and a second position wherein the shaft body contacts the extensions and moves the edge such that the retainer receiving aperture is sufficiently clear to receive the retainer.

Abstract: A connecting device for connecting a tool with tool bits of different lengths is taught here. The connecting device includes a shank, a socket and a position retainer. The shank includes a first end for engagement with the tool and a second end. The socket includes a first end for receiving the second end of the shank and a second end for receiving the tool bits. The position retainer is capable of selectively retaining the socket in one of various positions on the shank.

Abstract: The present invention relates to a universal joint shaft which includes a driving shaft and driven shaft engaged to a driving yoke and driven yoke which are arranged in an installation position and have opposite both front ends which are distanced and a rectangular cross section in a radius direction, and a three-divided joint formed of connection shafts and having a cross section in a radius direction to correspond to the driving shaft and driven shaft for implementing a radius direction slip and rotational force transfer between the driving shaft and the driven shaft, wherein the universal joint shaft includes a driving yoke and a driven yoke for transferring a rotational force in an inclined state at a certain angle.

Abstract: A pull pin assembly includes: a first pole having a first hole; a second pole having a second hole, and sliding in the first pole; a main body having a central hollow containing the first pole; a pull pin body extending radially from the central hollow, and having a space extending into the central hollow; a pull pin, having a circumferential stop, disposed in the space to move from a first position extending into the central hollow through the first hole to a second position outside the central hollow; a pull pin plug fit into the space and having a hollow containing the pull pin; and a biasing member biasing the pull pin toward the second position to lock the first and second poles; wherein the biasing member is disposed to bias the pull pin between the circumferential stop and the pull pin plug.

Abstract: An adjustment apparatus for adjusting the position of a member on an exercise machine has an inner tube with a series of spaced pinning holes and an outer tube telescopically engaged over the inner tube and having a locator hole for alignment with a selected pinning hole. A lever has a pinning section pivotally mounted on the outer tube to extend across the locator hole, and a hand engaging section extending at an angle to the pinning section. The pinning section is pivotable between an operative position in which a pinning button projects through the locator hole and an aligned pinning hole in the inner tube to secure the tubes together, and a retracted position in which the pinning button is spaced from the locator hole. A handle is mounted on the outer tube to extend in the same general direction as the hand-engaging section such that a user gripping the handle can engage the hand-engaging section and urge it towards the handle to pivot the pinning section into the retracted position.

Abstract: A safety and fixing mechanism allows a movable shape to move in one direction relative to a fixed shaped along an axis but automatically stops the moving shape from moving in the other direction. A ratchet machanism fastened to the fixed shape includes a ratchet element that is movably guided by a support in a direction substantially perpendicular to the axis. The ratchet element has an end portion that protrudes form the fixed shape toward the movable shape, the end portion having a flat end surface and an inclined end surface inclined to the axis. A spring biases the ratchet element relative to the fixed shape toward the movable shape. A perforated strip fastened to the movable shape has a plurality of spaced-apart holes lying in a row parallel to the axis, each hole being adapted to receive the end portion of the element.

Abstract: A connector system for tubing or piping which provides a male/female combination for the joining of tubes, pipes or the like for rapidly assembling and disassembling various structures such as temporary canopies, tents or the like. The system provides a male member having a spring loaded detent on the interior thereof and extending outwardly thereof with the female member, sized to be received over the male member, having a detent passing aperture through at least one side thereof for effectively and rapidly allowing joinder of units. To erect a supporting structure the connectors are provided at corners or within straight sections to join and extend straight sections. The straight sections are of selected lengths and each end thereof constitutes either a male or female connector for interconnect of the joining elements which may be straight or which may consist of a plurality of joining elements arranged angularly with respect to one another to achieve a corner.

Abstract: A pull pin assembly includes: a first pole having a first hole; a second pole having a second hole, and sliding in the first pole; a main body having a central hollow containing the first pole; a pull pin body extending radially from the central hollow, and having a space extending into the central hollow; a pull pin, having a circumferential stop, disposed in the space to move from a first position extending into the central hollow through the first hole to a second position outside the central hollow; a pull pin plug fit into the space and having a hollow containing the pull pin; and a biasing member biasing the pull pin toward the second first position to lock the first and second poles; wherein the biasing member is disposed to bias the pull pin between the circumferential stop and the pull pin plug.