Abstract: An archery peep sight apparatus with a sight mechanism in the form of a polyhedron adapted to be mounted in strands of an archery bowstring for sighting an arrow on a target. The polyhedron shaped peep sight has centrally located sight openings in each of four vertical faces parallel to a longitudinal axis of the bowstring. A peep sight turner for use with the peep sight mechanism and generally in the shape of a hexagonal disc is adapted for mounting on the bowstring at a position generally above a nocking point of the bowstring but below the peep sight mechanism. The peep sight mechanism is used to establish proper arrow trajectory even after the peep sight rotates out of its original line of sight alignment during the process of drawing the bow string into a cocked position. The peep sight turner is used to adjust the line of sight alignment of the peep sight to obtain the optimum viewing characteristics of the peep sight which may have rotated during the drawing process.

Abstract: This invention relates to a system for coupling two bodies able to move relatively with respect to each other by a given incertainty of amplitude, essentially characterized in that it comprises, on a first body, a projecting part having an end section of determined value and members for controlling the displacement of said projecting part with respect to said first body, and, on the second body, a cavity having an inlet opening whose section has dimensions larger than those of the end of the projecting part, the valve of the difference between these two sections being at least equal to that of the given incertainty, and members for exerting at least one couple of reaction forces between said projecting part and the inner wall of said cavity. The invention is more particularly applicable to the systems for coupling carriages and work stations in so-called flexible workshops.

Abstract: A wing skin is usually mounted to a support structure by using metal fasteners which cause high stress points and potential leakage points. The invention utilizes a wing skin structure fabricated from fabric strips with projections formed in the wing skin to mate with recesses formed in a support substructure thus forming interdigitations which prevent sliding displacement of the wing skin. A sliding bar passes through the interdigitating sections to maintain an interlocking relation.

Abstract: A fence clip to hold a wire, tape, or the like, in particular electrically conducting wire or tape, has a pair of spaced apart loops lying in planes inclined one to another. The fence clip has a release member to move the loops towards parallel planes, and a holding member to hold the wire, tape, or the like. The loops are dimensioned so that the area of the loops when in the parallel planes allows the loops to be placed on a fence post or standard, yet when the planes are at a sufficiently inclined angle one to the other the loops will grip said post or standard.The fence clip is formed from wire or the like elongated material.

Abstract: In order to provide a torque-transmitting joint comprising a tube of fiber-reinforced plastic material and a metallic inner sleeve which has a knurled outer surface, the inner sleeve is pressed into retaining regions of the tube having reinforcing fibers extending substantially entirely in the circumferential direction, whereby the knurling produces a counter-knurling because of the visco-elastic deformation of the material of the retaining regions.

Abstract: The invention relates to an expansion fastener device that secures two interlocking members together. The device includes a parallelepiped receptacle having slits along opposite ends. The receptacle is inserted through the interlocking members and double wedges are driven into the receptacle. The double wedges includes a first wedge having tapers in the vertical direction and its insertion into receptacle causes only vertical expansion of the receptacle. A second horizontal tapered wedge is received with a horizontal tapered opening formed in the first wedge to cause independent expansion of the recess in the horizontal direction.

Abstract: A clip to clip independently rotatable parts that must be axially held relative to each other, but not be constrained from sliding axially together. Each part (9, 10) has a bore and an internal annular groove (28) and the clip has transverse flanges (23, 24) that spring out and enter the grooves when the bores are aligned. The clip has a gap so that the cross-section can be changed considerably by gripping holes in the flanges with long-nosed pliars, or other gripping tool, that can enter the internal bores, address the clip to the grooves, and release the clip to enter the grooves. The tool is also used to remove the clip for dissembling the parts. Thus the parts, e.g. mainshaft gears, that have to be slide each way to engage respective dogs, can be replaced individually - in contrast to existing gear-pairs which tend to be unseparable without destruction of the clip (and usually of both gears).

Abstract: A manually controlled adjustable locking mechanism for a cable control system comprising a housing having a rectangular opening extending therethrough and a telescoping member having a rectangular cross section extending into and guided by the opening of the housing. The telescoping member has opposed transversely extending sets of teeth on opposite internal sides and external sides thereof. The housing has a rectangular opening extending transversely and intersecting the first mentioned rectangular opening. The opposed sets of teeth extend downwardly at an angle from the opening. A locking member has a substantially rectangular cross section and is positioned within the transverse opening and is manually movable between a first locking position and a second unlocking position.

Abstract: An attachment device is provided by joining a first structural member to the threaded stud of a second structural member by an attaching means which includes a flanged main body that has a tapered portion. A nut tightens the attachment device into an aperture of the first structural member and a removal tool is used to remove the attachment device when desired.

Abstract: A structural mounting assembly for mounting a power transmission member, such as the disk portion of a gear, to a shaft wherein the disk portion has an open-ended quill extending therethrough sized to snugly receive a bushing that has one end adapted to snugly receive the extremity of the shaft and the other end arranged to be connected to an adapter mountable at the other open end of the quill.

Abstract: An arrow rest for an archery bow which is quickly and easily replaceable and laterally adjustable in the field without any need for tools. The arrow rest has an arrow support arm which pivots upon movement of the arrow shaft and fletching across it and by a resilient arm hinge automatically returns to an initial predetermined position after discharge of the arrow. The arrow rest mounts on the end of an adjusting screw which extends through a hole in the handle portion of a bow. This invention provides easy lateral adjustment and complete replacement of the arrow rest in the field, without any need for tools, while maintaining the precise position and alignment of the arrow rest. This invention also provides an arrow rest that creates very little noise when an arrow shaft and fletching move across the arrow support arm.

Abstract: A joint structure having first and second members each including parallel surfaces and a common pivot axis extending perpendicular to the surfaces. One of the surfaces includes an array of detents and the other surface includes an array of recesses. The detents and recesses have discrete angular positions in which they are engaged with each other and retain the joint members in discrete angular positions. The structure also includes a pivot pin having a base portion connected with the first joint member and an integral resilient portion extending into an opening with a recess having a cam surface which is formed in the second joint member. The pin has a central axis which defines the pivot axis for the joint members. The integral resilient portion of the pin includes a plurality of resilient fingers and a cam surface. The cam surfaces of the fingers and the recess of the opening cooperate to cause the fingers resiliently to bend toward the pivot axis when the first and second joint members are urged apart.

Abstract: An archery bow which facilitates accurate shooting of an arrow and a construction which facilitates an easy and comfortable manner for carrying the bow, includes a riser defining a forwardly opening recess and a rearwardly projecting handle. Within the recess is provided a swivel hand grip with which the archer may grasp to alleviate deflections in the arrow's flight caused by sligth movements of the archer's wrist during the shooting process. The riser also includes an elongated slot which is adapted to adjustably mount an overdraw adapter to thereby provide a greater versatility in shooting arrows having varying lengths.

Abstract: A wheel bearing assembly comprises an outer bearing member which is secured to a steering knuckle, and a hollow spindle which is rotatably supported in a fixed longitudinal relationship in the outer bearing member by two rows of bearing balls. The hollow spindle has a splined bore which receives a splined stub shaft of a drive bell which is pulled through the splined bore by way of a pull groove in the free end of the stub shaft. A snap ring is assembled to the stub shaft to secure the hollow spindle on the stub shaft against the resistance of a deformed crush ring which is disposed between an inboard end of the hollow spindle and a shoulder of the drive bell. In an alternate embodiment the snap ring secures the hollow spindle on the stub shaft against the resistance of interengaging straight and helical spines of the hollow spindle and the stub shaft.

Abstract: In the past wing skin structures have been connected to support substructures by means of rivets or other mechanical fasteners which create stress points and leakage points when aircraft wings are filled with fuel. The present invention utilizes a support substructure having tabs which interleave between plies of a wing skin to mechanically interlock the wing skin and support substructure. The wing structure and support substructure may be fabricated from aircraft composite materials.

Abstract: The disclosure relates to a system of storage components which can be converted to a desk. A storage member of orthogonal configuration has a top portion releasably secured to a bottom portion. Separable fastener enable the top portion to be removed and reattached to the bottom portion to form a desk. Additional support is provided to support the portion of the desk distal to the interface of the top and bottom portion where attached by the separable fastener. The fastener is integrated with the various portions of the storage components to provide a relatively unobtrusive surface for the desk when erected and for transport as well.

Abstract: An automotive column cover has a first cover member, a second cover member to which the first cover member is secured, and a clip for connecting together these two members. The clip has a securing portion which is fitted to the first cover member and an engaging portion which is engaged with the second cover member. The first cover member has a secured portion to which the securing portion of the clip is fitted, while the second cover member has an engaged portion provided so as to face the secured portion of the first member and the engaged portion is engaged with the engaging portion of the clip. The securing portion of the clip is fitted to the secured portion of the first cover member, while the engaging portion of the clip is engaged with the engaged portion of the second cover member, whereby the two cover members are readily connected together.

Abstract: A socket extension is set forth with a release mechanism for an included lock ball wherein the release mechanism is positioned on side of the lock ball and an included safety wedge is positioned on the opposite side of the lock ball aligned with the release mechanism. The safety wedge is resiliently biased against the lock ball by a captured spring therebehind and the safety wedge being displaced upon displacement of the release mechanism to disengage said lock ball from an associated socket.

Abstract: A method and a expansion plug for removably plugging a channel (2) in an element (1), particularly a hollow turbine shaft, the expansion plug being inserted into the one end of the channel and expanded therein. For this purpose a plug is used of the kind comprising a sleeve (4) whose outer wall (5) having such dimension that the sleeve can easily be inserted into the channel. The inner wall (9) of the sleeve is slightly conical. A conical stopper (11) is arranged in the sleeve (4) in order to expand the sleeve (4) by axial displacement therein, to engagement with the channel wall. The end of the sleeve (4) with larger diameter is closed. The plug is provided with a channel (18) extending between these two ends. Oil is forced through the channel (18) to a closed space (14)between the inner end of the stopper (11) and the closed end of the sleeve (4) to cause expansion of the plug.

Abstract: A hold down device for a crossbow arrow or bolt uses a magnet supported and adjustably positionable in the tray beneath the ferro magnetic arrow head to hold the arrow against the arrow rest.