Abstract: A vehicle frame construction and method includes an elongated hollow frame member having a plurality of interior sides and a reinforcement member. The reinforcement member is formed from a thermoplastic polymer and is installed so as to be arranged within the elongated hollow frame member to reinforce each interior side of the elongated hollow frame member in a plane orthogonally oriented relative to a longitudinal axis of the elongated hollow frame member.

Abstract: The present invention relates to a method and apparatus for receiving a white space map in a wireless LAN system. According to one aspect of the present invention, in a method in which a first station (STA) receives a white space map in a wireless LAN system, wherein the first station operates as an unlicensed device that is allowed to operate in an available channel not used by a licensed device in a white space band, the first station receives, from a second station, a frame including the white space map which includes a black list and a first field for indicating that the white space map contains the black list, and operates in at least one channel from the rest of the channels in TVWS, excluding the channel contained in the black list, wherein the black list is a list of channels which cannot be used by the unlicensed device.

Abstract: A clamp includes a first jaw, a second jaw, a first connection, a second connection, and an actuator. The first jaw and the second jaw include a first clamp surface and a second clamp surface, respectively. The first connection operatively connects the first jaw to the second jaw in a manner that permits relative movement between the first jaw and the second jaw. The second connection is operatively connected between the first jaw and the second jaw. The actuator is configured to shorten a length of the second connection to thereby reduce a relative distance between the first clamp surface and the second clamp surface.

Abstract: A clamp has first and second movable jaws and a catch mechanism having a movable detent arranged to engage with a locking element in a number of different positions dependent upon the degree of separation of the jaws. The tightening force to tighten the jaws is transmitted through the catch mechanism and an actuator may be used to both engage/release the catch mechanism and move the jaws to the open position.

Abstract: A one-handed ratcheting C-clamp is provided. The C-clamp incorporates a spring loaded handle mechanically coupled to a ratcheting mechanism. The ratcheting mechanism has a plurality of gear teeth that engage the threads of a corresponding rod disposed through a hole formed in one section of the C-shaped C-clamp. The handle rotates the bidirectional ratchet such that the threaded rod is lowered or raised within the hole of the C-shaped C-clamp. A button located in the side of the handle may release the ratchet mechanism pawl to provide axial sliding engagement of the rod to a corresponding work piece. The handle and corresponding ratchet mechanism secure the rod against the work piece. Further tightening engagement of the work piece is accomplished via a lever located on a top portion of the rod.

Abstract: A clamp has an open state for inserting an object from a front end and a closed state for holding the inserted object relative to a back end. The clamp includes a frame as well as a first arm and a second arm that is positioned within the frame. At least one of the first or second arms is pivotable relative to the other along a range of motion that traverses an open position corresponding to the open state of the clamp and a closed position corresponding to the closed state of the clamp. In one embodiment, at least one of the first and second arms are shaped to position the object between a front end and a back end when the clamp is in the closed state such that a pressure exerted by insertion of the object to the backend causes the front end to move along the range of motion to the closed position.

Abstract: A clamp has first and second movable jaws and a catch mechanism having a movable detent arranged to engage with a locking element in a number of different positions dependent upon the degree of separation of the jaws. The tightening force to tighten the jaws is transmitted through the catch mechanism and an actuator may be used to both engage/release the catch mechanism and move the jaws to the open position.

Abstract: A one-handed ratcheting C-clamp is provided. The C-clamp incorporates a spring loaded handle mechanically coupled to a ratcheting mechanism. The ratcheting mechanism has a plurality of gear teeth that engage the threads of a corresponding rod disposed through a hole formed in one section of the C-shaped C-clamp. The handle rotates the bidirectional ratchet such that the threaded rod is lowered or raised within the hole of the C-shaped C-clamp. A button located in the side of the handle may release the ratchet mechanism pawl to provide axial sliding engagement of the rod to a corresponding work piece. The handle and corresponding ratchet mechanism secure the rod against the work piece. Further tightening engagement of the work piece is accomplished via a lever located on a top portion of the rod.

Abstract: A composite structural reinforcement has a keyed reinforcement member in which a thermally expandable resin strip is mechanically retained. The mechanical interlock permits the resin to be secured to the member without heat or an adhesive.

Abstract: A composite structural reinforcement has a keyed reinforcement member in which a thermally expandable resin strip is mechanically retained. The mechanical interlock permits the resin to be secured to the member without heat or an adhesive.

Abstract: A hand tool or clamp, capable of clamping a work-piece of any size within a wide range of sizes, includes a fixed jaw secured to one end of a slide bar, the other end of which is received in an elongate hollow sleeve and supported for back and forth movement relative to the sleeve. A movable jaw is supported on said sleeve at a selected one of plural mounting locations spaced along the length of the sleeve, each defined by a transverse pin extending through the sleeve. Once the fixed jaw has been advanced by hand toward the movable jaw sufficiently to clamp the work-piece, the sleeve and slide bar are releasably locked together by a pawl and ratchet mechanism. The clamping pressure is increased over that provided by hand by a screw mechanism associated with the fixed jaw.

Abstract: In accordance with the invention a holder is provided for an eyeglass frame having a pair of lens rims spaced apart by a bridge. A pair of supports are fixed in spaced apart relationship on a base plate and a cradle is journalled between the supports to rock beneath an axis spaced from and parallel to the base plate. A pair of jaws transversely mounted on the cradle in relation to the axis is biased toward closing and has a mouth accessible from above the axis. One or both of the jaws inwardly tapered from the mouth to a narrow passage and outwardly tapered from the narrow passage to a throat. The throat has inwardly extending seats. Thus, when a frame is inserted transversely into the mouth toward the throat with its upper rims against one of the jaws and its lower rims against the other of the jaws, the jaws open against bias to pass the frame through the narrow passage and then close under bias to secure the frame in the throat and on the seats.

Abstract: A vise has a stationary jaw, a movable jaw, an outer hollow high-speed spindle threaded in the fixed jaw and formed with a radially open entrainment recess, and an inner low-speed spindle threaded in the outer spindle. A hand crank is rotationally fixed on an inner spindle and an entrainment pin is displaceable transversely in the inner spindle between an entrainment position engaged in the recess and rotationally coupling the inner spindle to an outer spindle and a freeing position clear of the recess and permitting relative rotation of the spindles. A switching piece on the inner spindle can operate a bolt to press the operating bolt into the camming surface in a low-speed position of the switching piece and thereby pull the entrainment pin out of the recess to decouple the spindles and in a high-speed position frees the operating bolt from the camming surface and couples the spindles to each other.

Abstract: A jig for assembling a prefabricated building wall or similar structure including a supporting frame formed of first and second pairs of supporting members disposed in a generally polygonal configuration, at least two pair of clamping members, each pair of clamping members including opposing first and second clamping members between which are supported first parallel structural members, such as a header and sill plate and a plurality of joist therebetween, at least one of the clamping members of each pair having a rod received in a sleeve with a cooperative pin and a plurality of cam slots effect stepwise adjustment thereof, the same clamping member of each pair also including a threaded rod for fine adjustment, and a flexible cable interconnecting the clamping members of each pair to augment the clamping force provided by each pair of clamping members adjacent to nailing the structural members together to form the prefabricated building wall.

Abstract: A vibratory screen separator has cylindrical cleaner elements engaging the lower surface of a horizontal screen with the cleaner elements having a center of gravity offset from their longitudinal axis so that vibration imparted to a supporting perforated surface effects enhanced movement of the cleaner elements. Screen clamp means are pivotally mounted to swing to an external position with respect to a floating tub assembly in which the screen is positioned to permit removal of the screen and a subsequent removal for repair or replacement of a unitary vibrator unit mounted in a housing extending axially below the screen.

Abstract: A hydraulically actuated die clamp is capable of adjustably engaging die assemblies having a wide range of thicknesses. The clamp includes a pivotally mounted clamp lever having a first end which is vertically displaced upward by use of a hydraulic piston and a second end vertically displaced downward in response thereto for securely engaging the die assembly. The second end of the lever includes a first plurality of horizontally aligned, vertically arranged notches directed downward. Coupled to the aforementioned second end of the lever by use of a spring retaining mechanism is an adjustable striker bar having a complementary arrangement of a second plurality of notches directed upward for engaging the first plurality of notches in maintaining the striker bar fixedly positioned on the second end of the lever. A die assembly is maintained in a fixed position on a die clamp base, or table, by the hydraulically actuated downward displacement of the striker bar.

Abstract: A locator plate for positioning a plurality of different length multi-contact insulation displacement connectors for connection to multi-conductor flat cables has movable end guides for the connectors and a plurality of shims individually slidable along a shim support rod and pivotable on the shim support rod to a position between the end guides to define the proper spacing between the end guides for each of the connectors.

Abstract: This method is intended to permit installing of a cable of considerable length within a conduit, by means of a hauling line, under the most favorable possible conditions, so as to eliminate friction between the cable and the inner surface of the conduit, and, specifically, with reduction of tractive force to be applied to the cable. In accordance with the present invention, the aforementioned method consists of attaching the cable to a hauling line, according to its full length, at locations whose positions are to be determined in relation to resistance to tension affecting sections of the cable demarcated in this manner, so that, with the cable possessing some slackness, none of the sections of said cable shall be affected by stress affecting the preceding section, and so that tractive force shall be distributed along successive sections of the cable while it is being installed.

Abstract: A bit breaker adapted to be fitted in the Kelly drive of a drill rig for detachably securing a rotary drill bit to the Kelly drive to enable the latter to rotate the bit relative to a drill string having an internally threaded lower end portion in one direction to effect a threaded connection between the threaded pin of the bit and the string, and in the other direction to disconnect the bit from the string. The bit breaker comprises a bottom engageable by the bottom of a drill bit for supporting the bit, a top having an opening therein through which the bit may be lowered into engagement with the bottom of the bit breaker and may be raised to remove the drill bit from the bit breaker, and a stop member for selectively securing the bit in fixed annular position in the said opening in the bit breaker.

Abstract: A positioning arrangement for an element, such as an abutment of an industrial cutting machine, which is mounted on an elongated rail for movement longitudinally thereof, includes a toothed portion rigid with and extending longitudinally of the elongated rail, and an arresting member having serrations which are adapted to matingly engage with the toothed portion in a plurality of positions. The arresting member is mounted on the element for displacement toward and away from the toothed portion, and also for limited movement relative to the element longitudinally of the elongated rail. The arresting member has two opposite lateral surfaces which diverge toward the toothed portion, and a pair of wedge members is provided, each of the wedge members having a wedge surface adapted to contact the lateral surface of the arresting member, the wedge members being mounted on the element for independent displacement toward and away from the toothed portion.