Abstract: Aspects of the disclosure provide for a method and apparatus for installing and removing a plug retainer that may be used in a fluid end hydraulic system.

Abstract: An apparatus for stabilizing a crack or joint has an elongated plate with a cam gear end and a pin end. The cam gear end has a first aperture and the pin end has a second aperture. A cam gear is sized to fit within the first aperture of the elongated plated. The cam gear has a stud pin aperture positioned off a center point of the cam gear and a rotation point. A first stud pin is sized to pass through the stud pin aperture of the cam gear and a second stud pin is sized to pass through the second aperture. A locking mechanism for locking the cam gear in relation to the elongated plate is included.

Abstract: An exemplary system for correcting a spinal deformity includes a plurality of transverse rods, a longitudinal rod, and at least one node. The plurality of transverse rods each includes a first end for coupling with an extension member of a spinal fixation system and a second end. The longitudinal rod extends transverse to the transverse rods. The at least one node receives the second ends of first and second transverse rods and the longitudinal rod within a receiving portion and an adjustment member selectively secures the second ends.

Abstract: A fastener is disclosed for use in a high vibration application wherein the fastener is engaged to a blind hole. The fastener includes a lock washer including wedge locking action fastening features and a head of the fastener including mating wedge locking action fastening features. The wedge locking action fastening features include a greater inclination than a pitch angle of the fastener such that the fastener is prevented from backing out.

Abstract: The invention provides for a retainer for stabilizing a threaded member. The retainer may include a base portion having an opening and an outer perimeter lying in a first plane, the opening having a plurality of elongated sections each extending toward the outer perimeter so as to define in the base portion one or more arms. Each of the aims may have a head section having at least one groove, the head sections being located in a second plane which is parallel to and spaced apart from the first plane. The elongated sections may be symmetrically arranged about an axis. The grooves may be arranged to define at least a portion of a helix. The outer perimeter of the retainer may be circular.

Abstract: A retaining cam (20) for a rotatable fastener for connecting components (16, 17) is provided. The retaining cam (20) has a housing (22) pivotally supported on a base plate (24), by which the retaining cam (20) can be fixedly connected to one (17) of the components (16, 17). A screw (30) is secured rotationally fixed in the housing (22). A fastener bolt (40) rotatably connected to another (16) of the components (16, 17) can be screwed onto the screw (30). Spring elements are associated with the screw (30) for generating an elastic pretension for securing the fastener bolt (40) against rotation. The housing (22) is pivotally supported on the base plate (24) by a spherical washer (50). An angle deviation between the center axes of the retaining cam (20) and the fastener bolt (40) can be compensated for by pivoting the retaining cam on the spherical washer (50) while maintaining full-surface contact of the retaining cam (20).

Abstract: A locking wedge system for use with a load-carrying stud having a locknut (or work piece) mounted on the stud in locking relation with another work piece employs a laterally displaceable laterally tapered wedge member that is forced transversely into axial jacking relation between a pair of tapered washers so as to apply a large axial locking force against the lock nut and work piece. The tapered wedge member is forced into engagement between the pair of tapered washers by way of a transversely extending jacking screw. The jacking screw may pull or push the tapered wedge member into or out of engagement between the pair of tapered washers. A preferred wedge angle from normal to the stud is 3 degrees with an operating range from 1 degree to 10 degrees. The locking wedge system elements are selectively rotatable about the stud, for optimum operating access to the jacking screw.

Abstract: An low-profile cam locking fastener assembly in which a locking nut is connected to a locking washer through a tubular skirt that extends from the nut opening. The skirt and nut opening are coaxial having contiguous inner surfaces that are threaded to receive a bolt or stud. The washer is mounted to the skirt so as to be rotatable with respect to nut as well as axially movable to a position in which cooperating cam elements on opposing faces between the washer and the nut are separated. The cam elements are arranged so that when the nut and washer are fastened down to a bolt or stud on a workpiece, the cam elements engage one another to substantially prevent the nut from loosening from the threaded bolt/stud.

Abstract: A washer includes a wedge-shaped main body, a wedge-shaped adjusting portion moveably positioned on the main body and a flexible connecting portion interconnecting the main body and the adjusting portion. The main body defines a through hole through which the screw passes. The main body includes a bottom surface and a positioning surface angled relative to the bottom surface. The adjusting portion includes a flat contact surface and a latching surface contacting the positioning surface of the main body. The latching surface is angled relative to the contact surface. A wedge angle of the adjusting portion equals that of the main body, thus the bottom surface of the main body is substantially parallel with the contact surface of the adjusting portion.

Abstract: The invention provides for a retainer for stabilizing a threaded member. The retainer may include a base portion having an opening and an outer perimeter lying in a first plane, the opening having a plurality of elongated sections each extending toward the outer perimeter so as to define in the base portion one or more arms. Each of the aims may have a head section having at least one groove, the head sections being located in a second plane which is parallel to and spaced apart from the first plane. The elongated sections may be symmetrically arranged about an axis. The grooves may be arranged to define at least a portion of a helix. The outer perimeter of the retainer may be circular.

Abstract: An automatic gap adjustor is provided. The automatic gap adjustor includes an upper cammed disk, a lower cammed disk spaced apart from the upper cammed disk, and a resilient spring element therebetween. The upper cammed disk includes a first plurality of cams on an upper axial surface and a second plurality of cams on a lower axial surface. The lower cammed disk includes a third plurality of cams on an upper axial surface and a fourth plurality of cams on an undercut portion spaced apart from the upper axial surface. Opposing cams can be radially offset from each other, such that reciprocating axial movement of the upper disk relative to the lower disk can achieve a stepped rotation of the upper disk. Rotation of the upper disk can drive the automatic gap adjustor along a threaded support to eliminate a gap along a portion thereof.

Abstract: The fastening is performed by using the fastening bolt of the conventional mass-produced car, the fastening method capable of obtaining “Resonance frequency” of the aimed body and the sub frame rigid collar for car used for the fastening method, are provided by the tightening work with the conventional specified torque, and only by simple work of interposing the sub frame rigid collar for car, without need the work of any special processing.

Abstract: Axially expandable spacers (51, 53) are insertable between a nut (20), on a bolt (19) to be tensioned, and a face (F) on a component (C) and have ramp faces (52, 54) to take up the space as the bolt (19) is tensioned by an hydraulic tensioner (25), where the puller bar (35) is engaged with an extension (121) on the nut (120). A segmented collar (60) has radially movable segments (61) to allow quick engagement/release between the puller bar (35) and the end of the bolt (19) on the nut (120).

Abstract: A locking wedge system for use with a load-carrying stud having a locknut (or work piece) mounted on the stud in locking relation with another work piece employs a laterally displaceable laterally tapered wedge member that is forced transversely into axial jacking relation between a pair of tapered washers so as to apply a large axial locking force against the lock nut and work piece. The tapered wedge member is forced into engagement between the pair of tapered washers by way of a transversely extending jacking screw. The jacking screw may pull or push the tapered wedge member into or out of engagement between the pair of tapered washers. A preferred wedge angle from normal to the stud is 3 degrees with an operating range from 1 degree to 10 degrees. The locking wedge system elements are selectively rotatable about the stud, for optimum operating access to the jacking screw.

Abstract: The invention provides for a retainer for stabilizing a threaded member. The retainer may include a base portion having an opening and an outer perimeter lying in a first plane, the opening having a plurality of elongated sections each extending toward the outer perimeter so as to define in the base portion one or more arms. Each of the aims may have a head section having at least one groove, the head sections being located in a second plane which is parallel to and spaced apart from the first plane. The elongated sections may be symmetrically arranged about an axis. The grooves may be arranged to define at least a portion of a helix. The outer perimeter of the retainer may be circular.

Abstract: A thrust washer structure includes a non-rotating washer which bears against the transmission housing. A rotating outer washer is positioned over the axle and includes a tab projecting at a right angle from a portion of the washer face such that the tab engages an existing keyway in the wheel hub or bushing utilized to transmit drive from the axle to the drive wheel.

Abstract: A multi-axis correction washer for use with a spinal stabilizer for internal spinal fixation. The bodies of the washer are provided in cylindrical and wedge-shaped cylindrical configurations with a hole in the center of the longitudinal axis of the cylinder and/or offset from the center axis of the cylindrical washer and a shoulder or other structure for rotatably engaging a hole in a spinal implant. The spinal implant can be a plate and screw-type, ladder-type, or monorail-type spinal fixation system. The washer is rotated to provide an infinite range of angles and screw placements relative to the central axis of the spinal column for maximum flexibility of installation and to effectively transfer the load on the spinal column to the implant, all while maintaining an angle of approximately 90° between the head of the screw and/or nut and the washer which engages the implant.

Abstract: A mounting mechanism for an adjustable component that is to be held against an abutment surface of a housing, especially for the guide bar of a power chain saw, is provided. The mechanism includes at least two bolts that are provided on the housing, are spaced from one another, and project beyond the abutment surface of the housing and into an elongated opening of the component. At least one device is provided that extends into a gap between one of the bolts and at least one of the longitudinal edges of the elongated opening for engaging such at least one longitudinal edge.

Abstract: An apparatus for reducing the bending stress imparted to threaded fasteners in flanged connections is disclosed. The apparatus includes a stress reducing washer positioned between the head of the threaded fastener and a counterbore in the backface of the flange. In a first embodiment, the stress reducing washer uses a tapered upper surface oriented with respect to the flange to compensate for flange deflection as the threaded fastener is tightened to a predetermined torque value. Second and third embodiments utilizing spherical and cylindrical surfaces are also shown. A fourth embodiment eliminates the need for the stress reducing washer and machines the tapered surface in the backface of the flange.

Abstract: The subject invention relates to an adjustable wedge washer to be used in connection with various material testing machines which are used to mechanically test the strength of bolts, screws and other types of fasteners. The subject adjustable wedge washer includes two wedge washers being joined together mechanically with a snap ring so that they are not separable. The wedge washers then rotate relative to each other to form a variable testing angle relative to the fastener.

Abstract: A plug washer useful for holding a vertical stud support member against a masonry wall using studs embedded in the masonry wall at an oblique angle to horizontal, the plug washer having an expanded washer portion which bears against the steel support on one side and a nut on the other, and further having a plug that fits in holes in the support member made to accept the stud, the plug and the washer portion having a hole passing through them at an angle to receive the stud.

Abstract: A device for securing a motor vehicle windshield has rotatable eccentric members which serve as a means to raise the windshield from an initial installation position into a final position. The eccentric member is arranged on a rotatable spacer which is non-uniform in thickness. This arrangement provides that the gap between the inner windshield surface and the windshield frame can also be adjusted.

Abstract: A method of essentially maintaining the integrity of mine floors and precluding floor heave, this without the necessity of incorporating timber cribs, jacks and so forth, as utilized in the prior art. Floor integrity is maintained with a minimum of obstruction of the mine opening. Truss structures herein are designed to deter floor heave and, optionally, also may be adjusted in certain instances for employment as roof trusses even though stress patterns of the strata will differ. Truss-bracket, channel, and allied constructions are incorporated and are of advantageous design as hereinafter pointed out. Of special import is the bracket, of nominal triangular cross-section which facilitate through-placement of tie rods and anchor bolts in tension and in a manner deterring the generation of force couples. The truss structures will be installed between mine pillars, broadly defined as any side structure, rock or otherwise, spanned by a mine- or tunnel-roof.

Abstract: Structure for attachment and support of a fender of a vehicle such as a truck or the like in which the vehicle is subject to travel over rough or uneven terrain. An attachment member extends freely through a bracket which is joined to the frame of the vehicle. The attachment member also extends freely through a portion of the fender which is adjacent the bracket. Thrust washers having convex and concave engagement surfaces freely encompass the attachment member and are positioned between the fender and the bracket and are attached thereto. Thus, relative movement between the fender and the bracket is permitted to prevent distortion or twisting of the fender as the vehicle travels over rough terrain.

Abstract: The invention concerns an anchoring device, more particularly a screw anchoring device, for insertion in an opening, e.g. in the end of a tube, to there form an anchor for a screw or bolt introduced into the opening. The device comprises an internally threaded locking body, preferably a conventional hexagonal nut, and a sleeve which is shaped, at least at one end thereof, to provide a tip portion, e.g. by being cut off obliquely. The device is inserted into the opening with the screw engaging the locking body and loosely accommodating the sleeve, whose tip portion is facing the body. In tightening the screw the locking body becomes wedged between the tip portion of the sleeve and an opposing portion of the wall of the opening. The union body-sleeve will then form a solidly fixed anchor for the screw, which itself can be loosened and tightened as desired.