Abstract: A locking mechanism for releasably locking a rotatable arm 3 to a generally cylindrical axle or wheel 6. The mechanism comprises a slot 7 extending around a region of the axle 6, the slot having first and second abutment surfaces spaced apart in the direction of said movement. A heel member 17, rigidly fixed to the arm 3, projects from the arm into the slot and provides third and fourth spaced apart abutment surfaces 19,27, said third abutment surface 19 being arranged to engage said first abutment surface 18 to prevent rotation of the axle 6 in a first direction. A locking wedge 21 is provided which is moveable between a first release position in which the wedge lies outside the slot 7 and a second locking position in which the wedge projects into the slot to engage said second abutment surface 10 of the slot and said fourth abutment surface 27 of the heel member 17 to prevent rotation of the axle 6 in a second direction opposite to said first direction.

Abstract: A display shelf is slidably coupled to a gondola by support members so that the tray may be moved between a display position and a stocking position.

Abstract: A tripod includes a vertically movable center column dividable into an upper column member and a lower column member. A lower flange on a lower end of the lower column member prevents the center column from slipping off the tripod when fully extended. When a user removes the lower column member for an activity such as low-angle photography, a number of stopper protrusions prevent the upper column member from slipping off the tripod. When the user reattaches the lower column member, the stopper protrusions disengage to permit free movement of the center column. The present invention thus allows low-angle photography, provides a wide range of vertical motion of the center column, and prevents the user from accidentally damaging a camera when the lower column member is removed.

Abstract: A universal pipe hanger strap for hanging a pipe to a building structure comprises an elongated flexible strap for encircling a pipe, the strap having first and second ends and a plurality of ratchet teeth along at least the sides thereof, a ratchet buckle on the first end of the strap for receiving the second end of the strap, and having latching pawls latchingly engaging the teeth, and a universal attachment bracket spaced intermediate the first and second ends, the attachment bracket having a plurality of slots for receiving a hanger bar in multiple orientations, and a bore for receiving a hanger rod.

Abstract: A first mounting frame for articles rack in the car consists of a locking plate, a first connecting element and a mounting plate connected pivotally together, and a second mounting frame for articles rack in the car consists of a locking plate, a first connecting element, a second connecting element and a mounting plate connected pivotally together; through the locking plate, the first or second mounting frame for articles rack in the car can be optionally and firmly installed in a very small plane position in any one angle, and such articles rack as a drink rack or a mobile telephone set rack in the car or a fixing plate of such a rack can be fixed on the mounting plate; and before and after locking the rack or the fixing plate, or before and after fixing the foregoing locking plate, the fixing plate or the locking plate can be optionally swung left and right or up and down and turned clockwise and counterclockwise for a desirable adjustment of their mounting position.

Abstract: A Christmas tree shelf structure for use with either natural or artificial trees consisting of radially extending shelf supports which are removably mounted upon the tree column or trunk. Three different embodiments of shelf bracket support are shown, and the brackets permit a display shelf to be located within the branches of a Christmas tree to permit the support of tree decorations not otherwise usable with Christmas trees.

Abstract: A combination of a clipboard and art supply container is provided. The clipboard includes a board and a clip attached to the board. The clip is specially constructed and adapted to removably hold the art supply container. Multiple art supply containers may be furnished containing different art supply media.

Abstract: A rod locking apparatus with a simple structure and outstanding operability for facilitating rod locking and a camera stand with such a rod locking apparatus. The rod locking apparatus comprises an insertion hole formed in the main body, through which the rod is inserted, a space formed in the main body in such a manner that it intersects with the insertion hole, with a communicating hole that communicates with the insertion hole, an eccentrically rotating shaft inserted in the space with an external locking hand grip provided thereon and an elastic member provided on the external circumference of the eccentrically rotating shaft. This allows the rod to be easily locked and released.

Abstract: Wrist-supports comprises an arched panel (25) standing on a pair of footing edges (26) extending in a side to side direction. Panel (24) comprises firm material that is thin enough to flex as shown in figure (2). Flexible material sleeve, platform having a channel or keyboard housing is required to constrain panel (25) in its arched configuration, as shown in FIGS. 1, 4, 8, 11, and 12. A separate support is recommended for each wrist. The designs provide surprising benefits of comfort, reach, and wrist-straightening. Many variations are considered. A mobile version with hand strap (36) is shown in FIG. 12. A sloping version is shown in FIG. 7 comprising trapezoidal structure panel (25), shown in FIG. 6.

Abstract: A novel rack for holding test tubes, elongated objects and the like in an upright position. The rack is formed in a one-piece construction having upper and intermediate panels, both panels having holes which are aligned with one another to receive tubes passing through both panels. The holes securely retain the tubes upright and separate from each other during shipping and dispensing by means of easily deformable holes having integral slits radiating from each hole. The carton is lightweight, collapsible and can be easily scored and recycled.

Abstract: A lawn chair leveling block includes a portable rigid, flat ground-engaging pad designed to support the lawn chair in a level position on a sloped ground surface. The pad is provided with an upstanding elevation block having a deep groove along a top surface, and the groove is designed to cradle a U-shaped leg of the chair. Blind holes positioned in the pad at opposite ends of the elevation block are designed to support individual tubular, vertical chair legs. In addition to being utilized for leveling a lawn chair on a sloped surface, the block prevents a chair leg from sinking into soft soil so as to eliminate the risk of the chair tipping over.

Abstract: A compact portable reading stand, which serves to hold a book open in a number of positions, with a rigid backing plate having a lower slide raft. On this rail slide positionable spring-loaded page clamps which hold book pages open by pressing against outer page margins. Two adjustable arms mounted on the lower rear corners of backing plate, along with a third telescoping, pivoting and rotating leg, allow book stand to be raised off a table top, positioned sideways for reading in bed, or raised above an arm chair. May be attached to a floor stand or other bracket for positioning book over a bed or above a chair or desk. Detachable reading light may be attached behind lower slide rail.

Abstract: A support stand assembly mountable to a carrying case for sports, music, and recreational equipment is provided and includes support structure, rack structure and a linkage assembly interconnecting the support and rack structure. The linkage assembly is operable for causing coordinated synchronous movement of the support and rack structure between a stowed and extended position. In the stowed position, the support and rack structure assume a compact retracted position so as not to significantly protrude outwardly from the carrying case. In the extended position, the support structure supports the case in a generally upright position. In the extended position, the rack structure is extended to receive and support at least one elongated item of equipment, such as a cue stick, in a generally upright position.

Abstract: An adjustable supporting apparatus supports a workpiece feeding machine on a worktable and includes a base member fixed on the worktable and provided with a neck. A pivot member has a vertical sleeve portion sleeved rotatably on the neck and locked releasably on the neck by means of a vertical lock bolt unit, and a horizontal nose projecting from the vertical sleeve portion. When released, the pivot member can rotate about a vertical axis on the neck. A horizontal sleeve member is sleeved rotatably on the nose and locked releasably on the nose by means of a horizontal lock bolt unit. When released, the sleeve member can rotate about a horizontal axis on the nose. A positioning assembly has a tubular unit fastened to the sleeve member and formed with a passage into which a straight first end portion of a coupler rod is inserted.

Abstract: A channel supporting device includes a support member having two clamps between which trunking is accommodated. The clamps each have an upper projection which defines between them and above the trunking housing for receiving a channel. The channel locks the support member around the trunking.

Abstract: The invention provides a hanger for suspending a paint bucket from the rung of a ladder. The hanger includes an elongated member having an upper portion provided with a downwardly turned hook that can be placed around the rung to suspend the hanger from the rung. The elongated member also includes an upwardly turned hook from which the handle of the bucket is suspended, and a support member on the lower part of the elongated member that supports the side of the paint bucket. The upwardly turned hook, the downwardly turned hook and the support member are positioned to cooperate to hold the bucket beneath the ladder and tipped toward the ladder with the handle of the bucket held out of the way and the top of the bucket in an optimum position between the rungs of the ladder.

Abstract: A guitar stand comprises a main hollow rod, a first hollow leg, a second hollow leg, a first brace, a second brace, a first bracket, and a second bracket. A pivot means fastens the first hollow leg and the second hollow leg on the main hollow rod pivotally. The first brace connects the first bracket on the first hollow leg. The second brace connects the second bracket on the second hollow leg. A hollow upper block is disposed on top of the main hollow rod.

Abstract: A pedesdal for holding and supporting a Christmas tree, a flag pole and the like composes of a plural number of separable and foldable base beams, a connection base and a holding tube assembly. The base beams are pivotally engaged with the connection base and can be extended to provided a firm support for a large size Christmas tree or a flag pole, or can be folded into a small space to facilitate transportation and storage. The holding tube assembly composes of an inside sleeve and a bushing which are held within an outside sleeve. There is a protection sleeve disposed within the inside sleeve to allow an electric wire disposed therebetween. A motor is disposed at the bottom of the outside sleeve. The motor can drive the inside sleeve and the bushing to rotate through a gear mechanism. Thereby the Christmas tree or the pole being disposed within the inside sleeve can also be rotated when motor is power on.

Abstract: A portable stand is disclosed that vertically stabilizes an object upon a supporting surface. In one embodiment, the stand comprises a sleeve that has a vertical axis and defines an interior region that is adapted to receive the object. A plurality of supporting members are radially disposed about the sleeve, each member having a proximate and a distal end. Each member is pivotly mounted to the sleeve and biased in a retracted position. In the retracted position, the proximate end of each member radially and inwardly extends in the interior of the sleeve. The members remain in the retracted position when the stand is not on a supporting surface. The stand also comprises an actuator that has a contacting surface. The actuator is adapted to slide axially within the sleeve and is biased in a downward position by gravity. In the downward position, the contacting surface is positioned below each proximate end. The actuator remains in the downward position when the stand is not on the supporting surface.

Abstract: The present invention relates to semi-trailer support legs. In order to avoid damage to trailer support legs by failure to raise the legs when the trailer is coupled to a towing unit for movement, the present invention provides a pivotal foot at the end of the support leg and an actuator for controlling pivotal movement of the foot between a raised position providing sufficient clearance for normal operation and a deployed position for supporting the trailer on uncoupling of the towing unit. More particularly raising and lowering of the pivotal foot is controlled automatically on coupling and uncoupling respectively of the towing unit and trailer.A particularly convenient arrangement results where actuation of the foot is responsive to the connection and disconnection of a control line between the towing and trailer units. More particularly still, the control line is the emergency brake line which would be connected as a matter of course. The actuator is supplied from a branch off said emergency brake line.