Abstract: A clamping sleeve for pipes consists of a rubberelastic sealing ring (1) and a clamping ring (2) which encircles the sealing ring and has clamping plates (5) which are directed radially outward, are located opposite one another and are penetrated by a centrally arranged clamping screw (6). The clamping screw (6) is supported on the clamping plates by intermediate pieces (8, 9), of which one is arranged between the head (7) of the clamping screw and the clamping plate, whereas the other directly forms the nut for the clamping screw. The intermediate pieces (8, 9) have a cylindrical cross-section, so that they sit with a cylindrical surface against the adjacent clamping plate (5). Furthermore, the position of the intermediate pieces (8, 9) is fixed at the clamping plate (5) by stops (11, 12). The swivelling capacity of the intermediate pieces (8, 9) relative to the clamping plates (5) makes possible an inclined position of the clamping plates (5) relative to the clamping screw (6) and relative to one another.

Abstract: A rotatable fastener has a head portion with an axially facing ring gear engageable with a complementary gear of a drive tool. In a preferred embodiment, the ring gear is a rearwardly facing beveled gear for use with a beveled drive gear and the head portion defines a forwardly directed thrust surface engageable by a bearing surface of the drive tool to urge the drive gear against the ring gear. In another embodiment, the fastener has a telescoping structure in which an internally threaded torque element is slidably received within a central passage of the head portion.

Abstract: A fastener assembly, having a threaded male and female member, is disclosed. One of the members has substantially conventional threads and the other member has two threaded portions rotationally offset relative to one another. Direction of the offset determines whether a compressive or tensile preload force occurs in the assembled fastener. Magnitude of the preload force is controlled by the extent of the offset. One of the threaded portions includes at least two, preferably about four, tapered threads which permit gradual distribution of the preload force and thereby prevent plastic deformation of the threads. The assembled fastener is substantially vibration proof, and, due to the well controlled permanent preload force, is highly fatigue resistant.

Abstract: Structure for screwing on sheet metal an object having a fitting hole comprises sheet metal having a prepared hole formed therein in the shape of a saucer and also having a saucer-shaped lip which has a thickness equal to the thickness of the sheet metal and defines the prepared hole, and a screw composed of a screwhead, a shank depending from the screwhead, external threads formed around the shank and a substantially conical tip. The screw is passed through the fitting hole in the object and driven into the prepared hole in the sheet metal while catching the leading end of the saucer-shaped lip between the adjacent external threads.

Abstract: A daze fastener system for connecting two or more structural elements wherein the structural elements and fastener parts have substantially different coefficient of thermal expansion physical property characteristics is employed in this invention. By providing frusto-conical abutting surfaces between the structural elements and fastener parts any differences in thermal expansion/contraction between the parts is translated to sliding motion and avoids deleterious thermal stresses in the connection. An essential feature for isotropic homogeneous material connections is that at least two sets of mating surfaces are required wherein each set of mating surfaces have line element extensions that pass through a common point.

Abstract: A combination of a locknut and key therefor, the locknut including a body portion having a face thereon and a curvilinear groove of predetermined configuration in the face, a thread on the body portion, the thread including a frustoconical lead-in portion terminating at an extremely short cylindrical helical thread portion, a key housing having an internally threaded end portion which can be centered on the lead-in portion and thereafter threaded onto the cylindrical threaded portion of the locknut, the key having a key head with a flange of curvilinear configuration for mating engagement with the groove in the locknut, the key head being mounted on a shank on which the housing is rectilinearly slidable, a spring in the housing for biasing the key head toward the locknut when the housing is centered on the the locknut and which forces the flange into the groove as the housing is threaded onto the locknut, and a wrench-receiving head on the shank for turning the key head after the housing is securely mounted o

Abstract: An assembly means for the standardized mechanical joint when used on pipeline appurtenances such as gate valves, fittings, etc., wherein the design or dimensions of said appurtenances prevent the insertion of the standardized T-bolt in one or more bolt holes. An improved fastener is inserted and tightened from the gland side facilitating the rapid assembly of said joint. Said improved fastener eliminates the need for slots on gate valves, fittings and the like, and prevents failure of the cast-iron valve body during compression of the gasket.

Abstract: A helmet assembly (10) provided with either single or dual visor mechanisms (14, 16) and low profile right and left side pivot assembly (18, 20). A low profile visor actuating arm assembly (36, 38) is associated with each visor and the left hand pivot shaft (46) of the left side pivot assemblies (20). Each visor actuating arm assembly is capable of being readily manipulated by the left hand of a pilot so that the associated visor can be moved between fully raised and completely down positions, the visor actuating arm assembly also cooperating with the pivot shaft (46) to positively lock the visor in either of its fully raised or completely down positions. A pivot hub assembly (47) is also disclosed for securing the pivot shaft (46) to the helmet (12).

Abstract: A nut member of special design is disclosed in conjunction with other elements to provide a post-tensionable mine roof support assembly. The nut member includes an upper, stem portion extending through the opening in a support plate and a lower, base portion of larger diameter than the plate opening. A through opening in the nut includes an internally threaded portion at the upper end of the stem and an internal socket for wrench engagement at the lower end of the base. Between the threaded portion and socket is an internal bore having a diameter greater than the threaded portion. Breakable means, preferably annular in form and cast integrally with the rest of the nut member, extends into the bore to a position with the cylindrical plane extending downwardly from the threaded portion.

Abstract: A device for fixing the lower bearing of the steering main shaft to the column tube in an automotive vehicle comprising; a bearing retainer fixed on the outer periphery of the lower bearing; a nut fitted into the bearing retainer so as to non-directionally incline, the outer periphery of the nut being spherically shaped; and a hole formed through the column tube at the position opposed to the nut and adapted to receive a bolt.

Abstract: Enclosed is a removable fastening assembly (80, 82, 84, 86) that can be secured to and removed from the same side of an opening in an article such as a plate (10) or the like into which an externally threaded member such as a screw ("S") is to be received by compressing opposed spaced-apart contracting means (18, 18', 58, 72) towards each other exposed on the side of the fastener facing away from the article opening (38) to cause a compressible member (16, 16', 56, 68) disposed on the side of the fastener facing towards the opening to contract sufficiently to be received into the opening with at least a portion thereof pressing against opposite sides of the wall of the fastener surrounding the opening with sufficient force to secure the fastener to the article upon release of the compressive force.

Abstract: An anti-theft nut for forward threading on a threaded member and having removal preventing means. The nut has a nut case with an axially extending skirt and two axially extending blind bores, and a bottom nut attached to the skirt to define and inner cavity. Two roll pins of different lengths are assembled within the axially extending bores. An internal nut having an engagement shoulder for engagment by the roll pins, and a bearing disposed between the internal nut and the bottom nut are assembled within the nut cavity. The longer of the roll pins extends from its bore in the nut case to engage the shoulder of the internal nut to effect the forward threading of the anti-theft nut. Unthreading of the anti-theft nut is prevented due to jamming between the bottom nut, through the bearing, with the internal nut prior to possible engagement of the longer roll pin with the opposite side of the shoulder of the internal nut.

Abstract: Tie down system for a three wheeled motorcycle which uses a pair of securing plates in conjunction with tie down straps to be located about the axle which supports the rear wheels of the motorcycle and a spaced apart locking plate which utilizes a movable clamping bar to be tightly connected over a bracing bar mounted on the frame of the motorcycle.

Abstract: A wheel locking device is a locking means wherein one of a plurality of fastening nuts with which a wheel plate covering both the inner face part of a vehicle tire and the external face of a wheel is secured to the wheel by a lockable nut which cannot be removed without using a key.

Abstract: A fastener for attaching fixtures to channeled structural members has an extended bolt engaging section which increases the load carrying capacity of the fastener. The fastener, with the extended section, can be used in channeled structural members of limited depth as well as the standard channeled structural members without sacrificing the load carrying capacity. The extended section has an alignment feature which will align the flanges of the channeled structural member with the grooved flange engaging means of the fastener permitting the use of the fastener in channeled structural members having widths greater than standard members.

Abstract: The present invention relates to encaged nuts manufactured either singly or in the form of a strip or band of such nuts.Said encaged nuts include essentially a nut (1) floatingly retained by a circlip (10) between the legs (9) of a support (2) of U-shaped cross-section whose base (3) is sandwiched between a lower strip (5) and an upper strip (4) which may be adhesively attached to any part or member of composite material.The encaged nuts according to the invention, whether used singly or in the form of a strip, allow assembling elements of a composite material such as for example panels.

Abstract: A fixing mechanism of stair units which are used for assembling a curved stair. Each stair unit has an upwardly projecting cylindrical member and a downwardly projecting cylindrical member at opposite ends. The upwardly projecting cylindrical member of the lower stair unit is inserted into the downwardly projecting member of the upper stair unit rotatably and slidably in the vertical direction. These two cylindrical members are fixed to each other by a screw member disposed on the axis of the upwardly projecting cylindrical member and a pair of nut members, which are engaged with the screw member with clamping an anchor member fixed to the downwardly projecting cylindrical member.

Abstract: A torque transmitting mating component for a mating assembly which, during assembly, provides at least one degree of freedom of movement selected from radial, axial and angular movement comprises an outer member, an inner member and torque transmitting elements located between the outer and inner members. The outer member has a chamber extending inwardly from one end thereof which has a polygon-shaped cross-sectional configuration. The inner member is located within the chamber of said outer member and has external side faces which are arranged to provide a polygon-shaped cross-sectional configuration corresponding to that of the chamber. The inner member is substantially smaller than the opening and the outer member so as to provide a clearance gap between the side walls and the external side faces.

Abstract: The invention disclosed shows a device, method and system for installing threaded masonry anchors. A plate is used to control the rate of axial penetration of the anchor into a masonry structure. An opening in the plate allows engagement of the anchor with the plate. Rotation of the plate is prevented by various means. As the anchor advances and forms threads in the structure, the plate may be used to resist axial forces on the anchor in either axial directions thereby precluding stripping of threads formed in the masonry structure.

Abstract: The security device consists of a bolt portion and/or a bolt fastener portion which utilize nuts which do not threadedly engage any other part, but give the impression that they do so and that they are the fastening means. These nuts turn freely as if stripped if an unauthorized person attempts to remove them.

Abstract: A security locking bolt for flanging "Christmas tree" installations, valves and other equipment to a pipeline header or a pipeline, which includes a bolt body having a partially threaded bore and a security bolt head integrally provided on one end and a cooperating locking head secured to the opposite end of the bolt body by means of an internally-seated locking bolt which threadably cooperates with the internal threads in the bolt body. In a preferred embodiment a roller bearing is also provided in the bolt body bore and an end cap closes the locking bolt access opening in the locking head. In another preferred embodiment of the invention a grease fitting is threadably inserted in the security bolt head and longitudinal apertures are provided in the roller bearing and the locking bolt in order to provide a means for inserting grease into the threaded bore and removing the end cap situated in the locking head, by application of pressure.

Abstract: A composite molded plastic article includes a metal nut insert adapted to be molded in place within the body of plastic material. The nut insert is adapted to be mounted on a pin projecting into a mold cavity of the mold used in forming the article. The nut insert includes a central bore extending between a pair of parallel, planar faces of polygonal outline and defining along the edges thereof a first pair of substantially planar, opposite side edges which angularly intersect a second pair of opposite side edges having a longitudinally extending groove therein and/or a parallel rib between the parallel, planar faces of the nut insert.

Abstract: In a locking latch assembly for mounting an electronic component drawer in a rack a clamping ring 30 is provided with plug and socket elements 46, 48 adapted to cooperate with a dynamometric key. An all metal hollow cylindrical spring cushion 44 is received within the cup-shaped clamping ring, a support stud 32 formed integral with the clamping ring 30 supporting the interior surface of the spring cushion along a portion of the axial extent thereof. The free end face of the spring cushion 44 forms a thrust bearing cooperating with a latch ring 52 adapted to receive a latch hook 60 fixed to the drawer. The clamp ring 30 runs on a threaded bolt 22 being in turn pivotally connected to drawer support rails 12 through a pivot pin 18.

Abstract: A method of fabricating sheet metal is described wherein a simulated opening for a threaded fastener is formed in sheet metal solely by roll forming a U-shaped loop segment in the sheet metal and then creating a simulated opening therein by crimping the sheet metal around a pin removably inserted in the loop segment. The simulated opening or hole is of sufficient depth to accommodate the entire length of the fastener and is formed without any drilling or punching operations.

Abstract: A fastener member having a base flange, a central perpendicular sleeve with internal threads for reception of a threaded fastening, fastening teeth struckout of such base flange for reception in a wooden work piece, the base flange having a forward feed edge and a rearward feed edge, and side feed edges, and abutment means in the base flange adjacent the feed edges and spaced apart from the fastening teeth, adapted to inter-engage with one another to prevent such feed edges from overriding one another in a feed track.

Abstract: A fastening insert adapted to be molded into the wall of a plastic container in order to provide a flat, fluid-tight sealing surface on the outer surface of the wall. The insert comprises a rigid annular base and a rigid rib which extends axially outward from the base. A plurality of threaded connectors are provided on the insert. The rigid rib and base prevent the plastic material from shrinking and sagging around the connectors during the plastic curing process.

Abstract: A lamp assembly for an automobile comprises a tilting member such as a lamp unit or reflector adapted to be moved by optical axis adjusting rods threadedly engaged with self-locking nuts relative to a support member such as a lamp unit casing or the like fixed to a vehicle body or the like so as to adjust an optical axis of the lamp unit or reflector. According to the invention, each self-locking nut is formed with two engaging grooves extending in directions perpendicular to each optical axis adjusting rod. One of the grooves has two opposite surfaces formed with round extensions extending toward each other. The other groove has a bottom having a convex along its generatrix.

Abstract: A nut retainer for use with a structural member having a nut entrance channel defined between a pair of opposed shoulders or flanges of some predetermined thickness and a nut receiving channel disposed beneath the shoulders. The nut retainer has a generally frusto-conical body constructed from a resiliently deformable polymeric material with the body smaller diameter end fixedly secured to a rectangular nut upper face in a surrounding relationship with a threaded fastener receiving opening. The body larger diameter end is spaced from the nut upper face by some predetermined distance and has a diameter greater than the width of the structural member entrance channel. The retainer body is conformed such that the body exterior side wall will engage the structural member shoulders at areas therealong which are spaced from the nut upper face by a distance which is less than the thickness of the shoulders when the nut is inserted width-wise into the entrance channel.

Abstract: The disclosure relates to a fastener assembly comprising a nut and a washer that insures a minimum preload on the nut and bolt assembly by load indicator means which also maintain the nut and washer in a joint preassembly.

Abstract: This invention provides a locking fastener in which a nut is provided with symmetrical axial slots extending inwardly from one end, a sleeve surrounds the nut and has ribs in the slots for engaging the thread of a threaded shank received in the nut, and a tubular member extends around the sleeve for pressing the sleeve into an annular groove in the nut for retaining the sleeve on the nut. The ends of a tubular member are bent inwardly adjacent the ends of the sleeve for holding the tubular member on the sleeve.

Abstract: A support structure formed in one or more sections, the support structure having vertical legs which are extensible at upper and lower ends thereof and being able to support concrete building forms at two different levels utilizing horizontal saddle beams near the top thereof to support a building form at one level with the extensible upper legs supporting a second building form at a second level. The saddle beams each include a pair of vertically spaced support surfaces preferably in the form of a pair of outwardly extending flanges proximate the top and bottom of a central web extending outwardly from the beam to form opposed surfaces, flanges or ledges and a connector at either end of the saddle beams, for securing the saddle beams to the legs, each connector preferably connected to the saddle beam by a bracket supported by the spaced support surfaces and secured to the web of the saddle beam to abut the opposed flanges.

Abstract: This invention relates to a bushing structure having a bushing (1) and a polygonal flange (2) said flange initially being formed with a circular circumference (5) having an outer diameter equal to the diameter of the inscribed circle (14) of the polygon to be made whereafter by means of cold deformation the material of the flange at the location of the angles of the polygon to be made is forced to flow outwards by means of a die pressed into the flat surface of the flange, the die having projections, the inner surfaces of which are steep with respect to the axis of the die and the bottom surface of which run obliquely and arching by upwards and outwards the radial width of said projections decreasing from the center to both sides.

Abstract: A self-aligning mounting arrangement for aligning a fastener to secure a first workpiece to a second workpiece. The arrangement includes a plurality of bores each of substantially identical cross-sectional area in one of the workpieces. These bores are arranged in a matrix grid pattern having a predetermined grid dimension. The cross-sectional area of each bore is a predetermined fractional part of the average cross-sectional area of the fastener used to secure the two workpieces. The predetermined grid dimension is a predetermined proportion of a cross-sectional dimension of the fastener.

Abstract: A nut member and composite joint configuration designed to eliminate compressive stress on work panels that are fragile. A nut with a tubular section and a flange, which is spaced both radially and axially from one extremity of the tube and provided with an adhesive surface, may be inserted from one side of the fragile panel so that the end of the tubular section is spaced within the aperture in the fragile panel. Compressive clamping forces applied by a male member draws the end up into abutment with the overlying panel while the adhesive absorbs much of the stress in the joint.

Abstract: A mounting system for conveyor idlers incorporates an assembly nut having a plurality of different pairs of parallel faces spaced around the periphery of the nut, such faces being spaced apart by different distances to allow use of the mounting system with a plurality of different styles of mounting brackets.

Abstract: A ceramic interiorly threaded hollow insert for incorporation in a refractory preformed shape such as hot metal runners into which eyelet carrying bolts may be threaded so that the preformed shapes can be handled by mechanical means. The ceramic insert is made of material similar to that of the preformed shape with which it is used. The ceramic insert is bonded in the preformed shape during the drying and baking formation thereof.

Abstract: A lead screw is coated with Teflon to protect the screw from a high humidity atmosphere and to eliminate the need for lubricants which would tend to collect corrosion products and form a grinding compound. A nylon nut is used in combination with the Teflon coated screw since the nylon deforms to load all of the threads whereby the Teflon coating is not peeled off.

Abstract: A clamp for securing at least one cable to a support comprises a channel member having an apertured base and limbs shaped at their free ends for engagement with the support, and a sub-assembly comprising a screw a saddle captive on the end of the screw remote from the screw head and positioned inside the channel member, and a nut threaded on the shank of the screw between the screw head and the saddle, the aperture in the base of the channel being large enough to permit passage of the head of the screw but not so large as to permit passage of the nut.

Abstract: A mounting arrangement for mounting a sanitary object with wider and narrower adjoining cutouts and an opening with the axis extending substantially normal to the axes of the cutouts, has a bolt member anchorable in the wall on which the sanitary object is to be mounted, a nut member having a wider portion substantially corresponding to the wider cutout of the sanitary object and a narrower portion substantially corresponding to the narrower cutout of the object, and being screwable onto the bolt member so as to fix the object between the nut member and the wall, and an actuating member arranged to extend through the opening of the sanitary object and to engage the nut member and to be supported by the latter so as to screw the nut member onto the bolt member and to thereby fix the object.

Abstract: A ceramic interiorly threaded hollow insert for incorporation in a refractory preformed shape such as hot metal runners into which eyelet carrying bolts may be threaded so that the preformed shapes can be handled by mechanical means. The ceramic insert is made of material similar to that of the preformed shape with which it is used. The ceramic insert is bonded in the preformed shape during the drying and baking formation thereof.

Abstract: A supporting bolt structure for connecting the ends of steps of a fabricated stairway including an elongated middle part having both internal and external threads at the ends thereof, a pair of internally threaded retainers mating with the external threads on the middle part and a pair of externally threaded headed portions mating with the internal threads of the middle part.

Abstract: A multiple threaded fastener assembly includes at least two hingedly interconnected members, each having a threaded bore therein constituting a nut for coaction with threaded bolts. The bolts operatively engage workpiece openings. Tightening of respective sets of interengaged bolts and nuts of the fastener assembly is effected by a single wrench operation since the torque or restraining force on one member is provided through the connection to the other member. Detents and indicating indicia may be provided for positive locating action of the members.

Abstract: An insert type drive tool (20) is configured to be insertable within both a square-shaped cavity (32) and a hexagonal shaped cavity (40) of the same size. In cross section shank (24) of tool (20) includes a pair of major sides (26) disposed in spaced parallel relationship to each other, and a pair of minor sides (28) also disposed in spaced parallel relationship to each other. The minor sides (28) are disposed substantially perpendicularly to the major sides (26) and are spaced apart from each other substantially the same distance separating the major sides (26). Two pairs of intermediate sides (30) extend diagonally from each end of major sides (26) at an angle of approximately 120.degree. to intersect an adjacent end of a corresponding minor side (28).

Abstract: A device for effecting a generally tamper resistant threaded connection. The device includes a threaded fastener and a tool for driving and setting the fastener. The fastener has an internally threaded body portion, and a hollow cylindrical axially extending tool engaging portion spaced radially outward from the body portion and interconnected therewith. The tool engaging portion has a generally serrated driving surface defined by a plurality of circumferentially spaced recesses for receiving a like number of complementary shaped projections on the tool. The recesses and the projections cooperate to establish a driving connection between the fastener and the tool when the tool is turned in a direction for driving and setting the fastener. When the tool is turned in a direction for backing-off the fastener once it has been set, the recesses and the projections cooperate to slidingly eject the projections from the recesses to break the driving connection between the tool and the fastener.

Abstract: In a dual wheel arrangement for vehicles, a hub adapter serves to mount a second wheel beside the first wheel. Combination nut and bolt elements are threaded onto the lug bolts for the first wheel. The hub adapter is received on projecting bolt portions of the nut and bolt elements and is secured by nuts. The second wheel is mounted on an outer flange of the hub adapter.

Abstract: An insert is disclosed for insertion into a U-shaped channel member for supporting hangers carrying cables, pipes, conduits and the like. The U-channel is a structural support element which is secured to a suitable substrate or, more commonly, embedded in concrete walls. The insert includes a main body portion of greater length than width having a threaded bore therethrough for insertion of a bolt therein, the bolt holding the support member in place. The insert also includes integral resilient legs extending from the rear wall of the insert and contacting the rear wall of the channel member, the legs biasing the insert forwardly against the side walls of the channel member.

Abstract: A mounting member is provided with an alignment ring and a plurality of outwardly projecting posts unitary therewith. Each post has a threaded bore for receiving a mounting screw. The member is temporarily releasably secured within a mold with the distal ends of the posts displaced inwardly from an adjacent interior surface of the mold and with the openings of the bores directed towards the adjacent interior mold surface. An article is rotationally molded to encapsulate the member with at least the distal end portion of each post embedded in a formed wall of the article.

Abstract: A swivel chair having a main screw connected to the chair seat and rotatably supported in a mounting assembly on the chair base enabling rotation of the seat relative to the base without varying the height of the seat. Height adjusting apparatus provides for the selective adjustment of the height of the chair seat and includes a nut member threadably mounted on the screw member. The nut member has a thread that is deformed into frictional engagement with the screw thread and when a seating load is applied to the nut member, the magnitude of the frictional resistance of the nut to turning on the screw is increased. As a result, rotation of the chair seat and the screw member will cause the nut member to rotate relative to the mounting assembly and remain fixed relative to the screw member to prevent an unintended varying of the height of the chair seat when it is rotated during use, while still enabling manual intended rotation of the nut when the chair height is to be adjusted.

Abstract: A hollow wall fastener using a conventional toggle bolt and a toggle anchor which is pointed and which has an open groove for receiving the toggle bolt. An end cap within the anchor has an internally threaded head portion and a frangible portion which allows the head portion to separate from the rest of the end cap when the end of the bolt is threaded into the head portion, thus twisting the frangible portion until it breaks. Thereafter the head portion prevents withdrawal of the toggle bolt from the anchor. The end of the groove has a threaded portion which cooperates with a threaded portion of an aperture opposite the groove to permit the anchor to pivot with respect to the bolt to a position where the bolt is threadably engaged and locked in the threaded portions of the anchor, forming a "T" configuration behind the surface of the hollow wall. Thereafter the bolt may be rotated to draw the anchor tightly against the interior of the hollow wall.

Abstract: An assembly which may be mounted on a shaft such as a rod, bolt, or the like. The assembly includes a first member which comprises at least two segments and a retainer or locking member which interlocks with the segments when the segments are placed around the shaft to retain the segments on the shaft. The retainer also comprises at least two segments such that the first member can be used on a shaft on which the ends are non accessible.In the illustrated embodiments, the first member is a nut, and, after positioning on the shaft, the nut can be rotated and tightened in the manner of any conventional nut.