Abstract: A harvester fan includes a donut-shaped insert which is rotationally molded with button-head bolts spaced therearound. The rotor-end of the bolts are molded into the sidewall of the insert so the sealing area of the insert remains planar for maximizing sealing ability. The opposite threaded ends of the bolts project from the insert, and rotation of a special nut held axially by snap ring and easily accessible by a wrench from outside the fan housing finely tunes the fan insert axially relative to the rotor for maximum output and efficiency.

Abstract: Fastening element for mounting insulating strips or plates on a solid structure includes a large-surface washer, a tubular extension and a locking member which is mounted to an end portion of the fastener and protrudes into the extension so that the fastener and the tubular extension form two telescopic elements movable relative to each other. The two telescopic elements can be adjusted and locked relative to each other in a desired position due to the provision of interengaging ribs, grooves or corrugations formed on the telescopic elements.

Abstract: A structure for connecting a fixed support to a facing panel, in which rotatable L-shaped brackets are mounted on the support and panel and a rod extends between pins mounted in the bracket legs, so that the effective length of the rod may be varied and the brackets rotated to correct for misalignment between the support and the panel.

Abstract: A lifting eyebolt assembly for engagement between a workpiece to be lifted and a lifting device includes a load-bearing ring that is connected to the workpiece by a threaded fastener. The load-bearing ring includes a base portion having a threaded central cavity. The fastener includes a threaded head portion for engaging the threaded cavity of the base portion of the load-bearing ring. The fastener also includes a threaded shaft portion for engaging a threaded bore within the workpiece. In one aspect of the invention, an access hole is provided between the eye portion of the load-bearing ring and the central cavity. In addition, the head portion of the fastener includes a recess disposed beneath the access hole to permit engagement with an allen wrench passing through the access hole. In one embodiment of the invention, the workpiece includes a recess around the threaded bore within which the head portion of the fastener is received when connected to the load-bearing ring.

Abstract: A fastening assembly for securing insulating sheetings or boards to a solid base has a tubular extension secured to a large surface washer at the top end thereof, a nut securely held against rotation in the interior of the tubular extension and an elongated fastener inserted at its top end in to the tubular extension and locked by the nut and which is engaged at its lower end which has a bulge, in the solid base.

Abstract: A portable vehicle throttle lock which includes a base member having opposite end portions. An accelerator pedal engagement means is formed in or connected adjacent to one of the opposing ends of the base member and a brake pedal engagement means is formed in or connected adjacent to the remaining opposing base member end. Also included are means for adjustably lengthening or shortening the base member. In operation the throttle lock is engaged between the brake and accelerator pedals of a conventional motor vehicle. An operator may lengthen the throttle lock via the adjustable lengthening means in order to adjust the rate of engine shaft rotation. The throttle lock may be manufactured and installed such that an operator may return the engine to idle by simple depressing the accelerator pedal thereby causing the throttle lock to disengage.

Abstract: A fastener with components locked to a fastener shank by tapered inserts disposed about a tapered segment of the shank. The attached components include an internal frusto-conical wall having a taper corresponding to the tapered inserts. Both the head as well as the threads of a fastener may be affixed to a common shaft.

Abstract: The threaded split-bushing fastener assembly has been designed for high temperature applications such as on hypersonic vehicles. The fastener assembly consists of a pin (with a standard countersunk head at one end and a tapered end at the other end), a tubular threaded split-bushing, a nut, and a washer. Installation is accomplished by inserting the pin in the parts to be fastened, then slipping the washer and split-bushing on the tapered end of the pin and finally screwing the nut onto the split-bushing. Tightening of the nut allows preloading of the fastener assembly.

Abstract: A plug for sealing the internally threaded circular cylindrical stud holes in the flange of a nuclear reactor vessel during refueling comprises a circular cylindrical body of dense wear resistant polymer, a circular reaction plate axially spaced from one end face of the plug, an annular grommet of elastomer resistant to weak acid held between the reaction plate and the body having an exterior conical surface. A tool extends into the body and applies a torque for turning threads into the internal threads of the stud hole thus drawing the grommet into the stud hole such that it deforms against the interior of the stud hole and the surface of the flange adjacent the stud hole.

Abstract: By the fastening device, two electric transmitters are to be arranged on a supporting structural part from which two extensions (11) protrude spaced from each other. For this purpose, one bored attachment end (15, 16) each of the two transmitters are arranged each on one side (13, 14) of one of the two extensions (11) on a threaded bolt (1, 2). The threaded bolt is screwed, with one collar (5, 6) each lying on both sides against the extension (11), directly to the latter. The attachment ends each have such a large recess (20 22) that they rest only on the extension without resting on the collars (5, 6). The threaded bolt (1, 2) is provided on the outside on both ends with a threaded section (9, 10). Nuts (25, 26) which are screwed on the respective threaded sections press in each case one of the two attachment ends (15, 16) against the extension (11).

Abstract: Universal battery hold-down structure particularly including an elongated bolt having a J-shaped lower end for securing the bolt to a battery tray and means to facilitate shortening of the bolt, a chrome plated non-corrosive elongated wing nut having a threaded opening in the lower end thereof for receiving the upper end of the bolt and including a dual external diameter forming an annular abutment adjacent the other end thereof for clamping a battery strap over the top of a battery positioned in the battery tray in conjunction with a resilient washer and a polished stainless steel washer sleeved over the non-corrosive wing nut and positioned between the strap end and washer and between the resilient washer and annular abutment.

Abstract: A pivoting adjustment screw for mounting the bolt of a latch to provide vibrational damping along with increasing preload as the contact point of the adjustment screw to the mating structure shifts in a shock or vibrational environment. The adjustment screw includes a pivoting portion which permits the screw to pivot which allows a rotating rather than a scraping or abrading movement in response to the relative movement between the elements being connected.

Abstract: A junction bolt for joining members by use of clamping nuts engaged with the junction bolt is provided with an axial inner hollow hole in which a piston member is located so as to define a space between the outer peripheral surface of the piston member and the inner wall of the junction bolt. The space is divided by a sealing member into a pressurizing space into which a pressurized fluid is introduced and a temperature adjusting space into which a heat medium is introduced. In the bolt clamping force adjusting method, the temperature of the junction bolt is first adjusted to a predetermined temperature and an extending amount of the junction bolt to be caused when an aimed clamping force is applied at this predetermined temperature.

Abstract: A safety lock for adjustment locking structures in which a set screw is passed longitudinally through a jam screw element at a position off-center from the axis and parallel to the axis of the jam screw and locking the jam screw against the end of the coaxially adjacent element in the adjustment stack.

Abstract: A device for adjustably fastening a door or window frame or the like to a fixed element, including a screw-like device having threads which engage the fixed element and a threaded sleeve member, displaceably arranged on the screw-like device, which engages the frame.

Abstract: A locking pipe sub is disclosed including a threaded pin connection for engaging, for example, a pipe stuck in a well bore. The threads on the pin are formed in two sections which are adapted to align upon initial make-up of the sub to the stuck pipe, but to misalign, both axially and radially, when reverse torque is applied to the sub. The result is to create axial and radial forces between the threads of the sub and the threads of the stuck pipe which positively lock the sub against disconnection from the pipe except with the use of a releasing tool.