Abstract: Turnbuckle linkages are disclosed herein. A turnbuckle linkage includes an inside rod including a first opening on a first longitudinal end and a second opening on a second longitudinal end of the inside rod, the first opening and the second opening extending at least partially through the inside rod, the inside rod including tabs extending from the first longitudinal end and the second longitudinal end of the inside rod around the first opening and the second opening, an exterior surface of the tabs including conical threads, outside rods to be positioned within the openings of the inside rod, the tabs of the inside rod at least partially surrounding the outside rods, the outside rods including end bearings to couple to a first structure and a second structure, and conical nuts to constrict the tabs around the outside rods and couple the inside rod and the outside rods.

Abstract: A quick release lock turnbuckle includes a socket slideable axially over a turnbuckle connecting between two threaded rods at a desired end-to-end spacing. The socket has a multi-sided interior cross section engaging a multi-sided exterior cross section of the turnbuckle, and also engaging a radially extending feature on one of the threaded rods to prevent rotation of the turnbuckle in the locked position. The socket is slideable axially off the turnbuckle to allow rotation of the turnbuckle in the unlocked position to change the desired end-to-end spacing between the two threaded rods.

Abstract: The present disclosure discloses a curtain mounting bracket, comprising a body, and the body is provided with a first connecting chamber where a hole-free mounting component is installed and a second connecting chamber where a traditional curtain is connected. With the structure of the first connecting chamber where a hole-free mounting component is installed, a bracket can be installed on a wall without any holes, and with the structure of the second connecting chamber, a traditional curtain is connected, thereby solving the technical problem in hole-free mounting of the traditional curtain, assisting the traditional curtain in achieving hole-free mounting and preventing the traditional curtain from being scrapped due to poor sales, thus reducing resource wastes, lowering production cost and achieving quick and convenient assembly and disassembly.

Abstract: An attachment for a ratchet-type load binder includes a mounting frame arranged for mounting to the load binder at a location registered with a ratchet mechanism thereof, a slot defined by the mounting frame and arranged to extend angularly of the axis of the ratchet gear so as to be adapted to receive a handle of the ratchet mechanism in rotary movement relative to a body of the load binder, and a transmission member having a shaft extending along an axis of rotation of the transmission member and transmission elements carried on the shaft and projecting outwardly therefrom for meshing with the teeth of the ratchet gear. It is one aspect of the invention that the transmission member is movable from a drive position in which the transmission member meshes with the ratchet gear to an idle position in which the ratchet gear can rotate freely of the transmission member, so that conventional operation of the ratchet mechanism with the handle is still available without removing the attachment.

Abstract: Cargo load platform assemblies are especially adapted to provide support for a variety of cargo, such as auxiliary aircraft fuel tanks. According to certain embodiments herein, a load platform is provided which is adapted to being positioned onto a cargo deck of a cargo aircraft. At least one anti-rattle device is operatively associated with the load platform for positionally fixing the load platform to a tie-down ring of the cargo deck of a cargo aircraft. The cargo load platform may support a rigid fuel tank thereon so that auxiliary fuel tankage systems can be provided as may be needed.

Abstract: A forward grip system is disclosed for supporting a paintball gun. The forward grip system has an inner, longer, hollow cylindrical body with threaded sections with two conical ends with slits around them. The middle section of the inner, longer, hollow cylindrical body has a groove for the outer, shorter, hollow cylindrical body to rotate around on. The edges of the grooved middle section of the inner, longer, hollow cylindrical body are raised to secure the outer, shorter, hollow cylindrical body within the grooved middle section as it rotates around the inner, longer, hollow cylindrical body. A vertical shaft is connected onto the outer, shorter, hollow cylindrical body to function as the handle. There are two threaded locking collars for engaging each of the threaded sections of the inner, longer, hollow cylindrical body for the purpose of locking the forward grip system in place onto a paintball barrel.

Abstract: Draw-pull bar used for guidance and mechanical mount with a locking mechanism consisting of two locking elements, namely a securing clip with a locking nose shaped as partial ring that is arranged on the toothed ring of the tubular body of the draw-pull bar by means of swivel arm and in which the locking nose engages when the securing clip swivels to the toothed ring. A bar with a hinge is fitted to one side of the resilient partial ring. When using a locking element, the bar snaps into the other end of the partial ring in such a way that the partial ring is clamped tight and an unintentional turning or undoing of the two locking elements is prevented without previous opening of the bar.

Abstract: The invention relates to a tensioning device (1) for chains, having a spindle body (2) which is provided with at least one spindle thread (11), and with at least two coupling elements (3, 4), wherein at least one coupling element (3, 4) comprises a coupling thread (3b, 4b) screwed to the spindle thread (11), and with a securing element (5) which is embodied to be transferable from a release position, in which the coupling thread (3b, 4b) can be rotated with respect to the spindle thread (11), to a securing position, in which a rotation of the coupling thread (3b, 4b) with respect to the spindle body (2) is blocked in a form-fitting manner. To provide a tensioning device with an easily operatable and secure release protection, the tensioning device (1) comprises at least one securing element (5) which creates a positive rigid body coupling between the at least one coupling element (3, 4) provided with a coupling thread (3b, 4b) and the spindle body (2) in the securing position.

Abstract: The invention provides an adjustment device and a method for the adjustment of a machine by means of the adjustment device which has a carrier block and a spindle guided in the carrier block, which spindle has an extension piece at its first end. The carrier block has a contact surface spaced from the guiding section of the spindle, e.g. which contact surface is at the surface of the carrier block facing the extension piece, and is particularly approximately in perpendicular to the axis of the spindle. Upon moving the spindle along its longitudinal axis in the guiding section in the carrier block the extension piece is moved against the plane in which the contact surface is arranged.

Abstract: The present invention discloses a rigid tie down in the field of mechanics, which addresses the problems of the existing tie downs, for example, they occupy a large space and have a low binding efficiency. The rigid tie down comprises a body, a first hook and a second hook provided on both ends of the body, and a handle connected to the body. The body has a cylindrical shape. The first hook has a first screw thereon, and the second hook has a second screw thereon. The first screw is threadedly connected with one end of the body, and the second screw is threadedly connected with the other end of the body. The direction of the threads of the first screw is reverse to that of the second screw. The rigid tie down could be operated in a convenient manner, have a high binding efficiency and occupy a small space.

Abstract: A structural unit, e.g., a tie rod, that has a tube which is provided with an internal thread, on at least one surface thereof, which is threaded in a first rotational direction, and into the end of which a threaded sleeve is screwed. The threaded sleeve has an internal thread which is threaded in a second direction, opposite to the first rotational direction, and has a shank screwed into the sleeve. The entire threaded sleeve is accommodated within the tube, and the threaded sleeve has a coupling contour on the opening side of the tube. A method of applying the structural unit such that, by rotating the threaded sleeve within the tube, the shank and the tube are moved in opposite directions. In the method, the coupling contour of the threaded sleeve serves to introduce the torque required for rotational motion of the threaded sleeve by way of a tool or an adapter.

Abstract: A support for sonographers provides a path of force transmission from an ultrasound probe to the sonographer's upper arm bypassing the wrist, and thus reducing wrist injuries that can come from the need to tightly grip and restrain an ultrasound probe for long periods of time.

Abstract: A fastening mechanism for connecting posts or other objects together is described. The mechanism consists of a housing (101), a first and second cam (110, 111) oppositely mounted in the housing (101), the first cam (110) and second cams (111) having opposed threads. A threaded stud (105) having clockwise (121) and counter clockwise (122) portions connects the first cam (110) and second cams (111) allowing the cams to be drawn together in use.

Abstract: A nut retainer.

Abstract: A turnbuckle is made by a method including preparing an iron tube having a longitudinal through-hole. A diameter of each of two ends of the iron tube is reduced to form a coupling section having an engaging hole, with an interconnecting section interconnected between the coupling sections. The interconnecting section is punched in a direction perpendicular to the longitudinal through-hole to form a transverse through-hole perpendicular to the longitudinal through-hole and between the coupling sections, leaving two opposite peripheral wall portions spaced by the transverse through-hole and forming a bend extending inward from each of two end edges of each peripheral wall portion into the longitudinal through-hole. An abutting portion is formed between each bend and one of the end edges of one of the peripheral wall portions. Inner threading is formed in the engaging hole of each coupling section.

Abstract: A load binder mechanism is disclosed that has an improved arrangement for connecting the hook and shaft end portions of the load binder to the elongated axially extending tubular body. The load binder mechanism of the present invention provides an axially extending tubular body having opposed end portions, each end portion being fitted with a sleeve that has both internal and external threads. The load binder mechanism includes first and second attachment members, each providing a shaft with an externally threaded portion. The attachment member shafts have respective right and left-hand thread patterns that engage correspondingly threaded internal bore sections of the sleeves.

Abstract: A tie rod jam nut includes a tubular body having an axial bore for receiving a tie rod. A locking portion at a first end of the body can engage the tie rod and a threaded portion of a connecting component attached to the tie rod to lock the connecting component to the tie rod as the locking portion is rotated in one direction and disengage the tie rod to unlock the connecting component when rotated in an opposite direction. An engagement portion is spaced distally from the locking portion toward a second end of the tubular body. The engagement portion can be rotated to remotely rotate the locking portion between the locked and unlocked positions.

Abstract: A concrete float adjusting device is disclosed which enables a user to adjust the angle of a float coupled to the adjusting device so that the float does not gouge into the unset surface of freshly poured concrete. The adjusting device includes a base coupled to the float, and a shaft rotatable in a pivot bearing pivotally coupled to the base. The shaft is formed with a pair of spiral slots which define a path of travel for a pair of upper pivot shafts projecting into the slots and guiding a protective sleeve and an integral follower sleeve together for sliding movement on the shaft. A pair of shiftable link arms extend between the upper pivot shafts and a pair of lower pivot shafts pivotally coupling the base to the link arms. Rotation of the shaft causes linear sliding movement of the protective sleeve and follower sleeve along the shaft. This motion is transmitted by the shifting link arms to the base so as to change the angle of the float relative to the shaft.

Abstract: A device for attaching farm implements to a tractor incorporates a top link having a central body inserted inside a sleeve. Two handles are integral with the sleeve on opposing sides and having respective projecting ends. A hook is provided on the top link for attachment to a farm implement with the hook being fixed to the central body. A joint, fixed to the central body, connects the top crossbar. A lock device locks the projecting ends of the handles inside respective seats.

Abstract: A steering tie rod for motor vehicles with a pipe, which is provided with an internal thread in a first direction of rotation on at least one side and is slotted at least in some areas, is presented, into which an adjusting sleeve is screwed at its end, where a ball-and-socket joint housing shaft of a ball-and-socket joint present at the end of the steering tie rod is screwed into the internal thread of the adjusting sleeve, which latter internal thread has a second direction of rotation opposite the first direction of rotation. An axial adjusting movement of the pipe relative to the ball-and-socket joint is made possible by a wrench contact surface made in one piece with the adjusting sleeve. The adjusting sleeve (1) has at least one recessed slot (2) and a collar band (4), which is fixed on the outer jacket surface of the pipe (3) and fixes the components in their position in relation to one another.

Abstract: A turnbuckle with a central link having internal right and left hand threads receives the ends of longitudinally split sections of a pair of shaft members which are threaded with complimentary right and left hand threads. The sections of the shafts are slidably engaged within the central link and a band of low friction material is placed between the opposing flat surfaces of the engaged shaft sections. The shafts can be sectioned into half sections, however, a preferred embodiment provides each of the shafts with a pair of quarter sections at 180-degree spacing.

Abstract: A method for manufacturing a turnbuckle mechanism in which a central link is provided with internal right and left hand compatible threads and which receives, at its opposite ends, one of a pair of longitudinally split, externally threaded shafts which are threaded in opposite directions. The split shaft members are manufactured from oppositely threaded cylindrical shafts which are machined along their threaded sections to split each cylindrical shaft into two symmetrical, longitudinally split shaft members, which are then paired with oppositely threaded split shaft members and secured together with the central link, preferably with a separation band of plastic or corrosion resistant metal between their opposing flat surfaces. The shaft members are also provided with distal clamps such as hooks, loops or full threads for attachment of cables, rods or similar members.

Abstract: A latch for a link assembly is disclosed. The link assembly has (i) an internally threaded sleeve and (ii) an externally threaded rod positioned within the internally threaded sleeve so that the externally threaded rod is meshingly engaged with the internally threaded sleeve. The latch includes a handle portion operable between a lock mode and an unlock mode, wherein when the handle portion is (i) in the lock mode relative rotation between the internally threaded sleeve and the externally threaded rod is prevented and (ii) in the unlock mode relative rotation between the internally threaded sleeve and the externally threaded rod is allowed. The latch also includes an engagement portion secured to the handle portion.

Abstract: The present invention provides a composite turnbuckle comprising a pair of co-axial and spaced annular end fittings. Each end fitting has a threaded interior surface and an outer surface. The end fittings are made of metal. The turnbuckle has a body that extends between the end fittings. The body includes a non-metallic material. The end fittings are secured to the body to limit relative axial movement between the end fittings and the body. The turnbuckle may be used in connection with riggings of sailing vessels, for example.

Abstract: A lockable turnbuckle assembly having a locking mechanism that can be used in limited space applications. The present invention pertains to a turnbuckle that is adjustable and lockable using a single hand and does not require the use of tools.

Abstract: A main mount (52) having a central hub (58) is secured to a turnbuckle. A ring gear (66) surrounds the hub. A motionless bearing (70) fits over the hub and is held in place with a locking ring (82). The motionless bearing (70) includes several bores that receive a driving bit (90) that engages the ring gear. As the driving bit is rotated, the main mount is rotated about the motionless bearing thereby tightening or loosening the turnbuckle.

Abstract: System for the assembly and clamping of seats which can be dismantled, these seats, stools or chairs (11) or the like comprising a front element (12a) and a rear element (12b) connected to each other by lateral cross-members (15, 16) including terminal tenons (17) cooperating with containing mortises (18) made in the front (12a) and rear (12b) elements or other reciprocal connection means of a known type such as pins, hollows and like elements, the seams (11) being also able to consist of two opposed lateral elements connected together by front and rear cross-members, the system being characterised in that it comprises at least one tensioner means (20) the ends of which cooperate with anchorage means (19) included in coordinated positions in the respective opposed faces of the front (12a) and rear (12b) elements or of the lateral elements.

Abstract: A medical technical compression implant (1) for the surgical repair of damage to the spine, especially in the cervical region, includes two clamp jaws (3, 4), which are directed toward each other, are hook-shaped, are connected by a threaded spindle (2), and can be compressed while reducing the distance (B) between them. A wrench profile (9) for attaching a rotating tool in an interlocking manner is arranged at the threaded spindle (2) between two threaded sections (7, 8) with right-hand threads and left-hand threads, respectively. Both the clamp jaws (3, 4) have threaded nuts (5, 6), which are pivotably mounted from bodies, with diametrical threaded bores for screwing on the threaded sections (7, 8). The threaded nuts are mounted in cylindrical transverse bores of the clamp jaws (3, 4). The bore walls (21) are provided with diametrical openings (22, 23) for passing through the threaded sections (7, 8) of the threaded spindle (2).

Abstract: The invention is an improvement in a machine such as a surface mining "shovel" having an arm, a bucket-like digging dipper and a brace. The latter is used to maintain a selected "rake angle" between the arm and the dipper. The brace has first and second end lugs and extends between the arm and the dipper. The improvement comprises a tube-like collar interposed between and connecting the lugs. At least the first end lug is positionally adjustable with respect to the collar so that the "rake angle" between the arm and the dipper may be readily selected. In a highly preferred embodiment, each end lug is threaded to an opposite end of the collar and better "vernier" adjustment of the rake angle results.

Abstract: The invention relates to a bar anchor arrangement for bars subject to tensile stress, whereby the bar anchor (1) consists of an anchor body with a bore provided with an internal thread (5) for screwing in a tension bar (8) provided with an external thread (9) as well as of two parallel eye plates (3) adjoining the anchor body to accomodate an eye bar (10). A smooth tolerance compensating section (6 and 7) is provided on at least one side of the internal thread (5). The length of the external thread (9) of the tension bar (8) essentially corresponds to the minimum screw-in length of the tension bar plus the length of a tolerance compensating section. The length of the internal thread (5) is greater than the minimum screw-in length of the tension bar.

Abstract: The invention is an improved head support stand used to smoothly and accuely position a patient's head when imaging the patient's upper spinal area. The improved stand includes a compound turnbuckle mounted between a base of the stand and a head cradle or face plate mounted to the base. The compound turnbuckle includes two rods threadingly engaged to a turnbuckle body so that the rods translate with respect to the body when it rotates. When the compound turnbuckle is in a fully retracted position, the rods are in a telescoped configuration within the turnbuckle body. When the compound turnbuckle is in a fully extended position, the rods are axially remote from each other and project substantially all the way out of the turnbuckle body.

Abstract: A clamping assembly which provides a uniform pressure simultaneously at two spaced apart points. The assembly includes a portion of a support member which has two parallel sides and a passage connecting the two parallel sides. A tubular shaped sleeve is received within the passage and includes short tabs extending slightly past the surface of the two parallel sides of the support member. A U-shaped anti-turn bracket is slidably received around the support member and includes slots that coincide with the passage in the support member. The tubular sleeve has a non-circular inside cross-section. A double-ended bolt having a first and second threaded end and an intermediate non-circular portion complementary to the non-circular cross-section of the sleeve is slidably received within the sleeve. The bolt is permitted to move linearly but not permitted to rotate within the sleeve. Threaded nuts are placed on each of the first and second threaded end.

Abstract: A vibrating portable screed of the type made up of sections having screed blade means at the base and a ridge portion at the top employs a turnbuckle assembly in the ridge portion held together by a removable pin and other removable pin connected means in the base portion thereby enabling the sections to be quickly assembled and disassembled by installing and removing the pins.

Abstract: Truck rails for pickup trucks and the like include the use of swivel connectors which permit the rails to be attached concurrently to the truck sides, headache rack, and tool box.

Abstract: A universal mounting bracket is provided for one or both ends of the head rail of a venetian blind or other such article, for example, a curtain rod, fireplace screen, drapery rod, or the like. The mounting bracket is operative for securing the aforementioned articles either within or across the opening of a window frame by compression fit without the necessity of nails and screws or other such items which would permanently injure the window casing. The mounting bracket may be easily installed or removed in order to accommodate simple installation of an article, its realignment or removal for repair or replacement and the like.

Abstract: A pair of laterally spaced, generally parallel opposite side members are provided and defined corresponding first and second ends. The first ends define aligned notches formed therein opening laterally outward of the side members in directions disposed generally normal to the longitudinal extent of the side members and the notched first side member ends may be hook-engaged over the longitudinal central portion of a turnbuckle assembly having an external gear wheel thereon, with the notched first ends of the side members embracingly receiving the gear wheel of the turnbuckle central portion therethrough. Longitudinal mid-portions of the side members journal a second gear wheel therebetween, and the second gear wheel is mesh engageable with the associated turnbuckle gear wheel. In addition, one axial lend of the second gear wheel projects through the corresponding side member and is equipped with an enlarged hexagonal head (or the equivalent) with which an impact wrench may be operatively engaged.

Abstract: Modular units are connected to each other with the aid of recesses provided in the edges of the modular units and with the aid of clamping bolts each carrying two nuts and a clamping nut in a mirror-symmetrical arrangement relative to a plane passing centrally through the clamping nut and perpendicularly to the longitudinal axis of the clamping bolt. The recesses are correspondingly dimensioned and located so that two sets of recesses in a mirror-symmetrical arrangement can receive the clamping bolt with its nuts. A clamping bolt has oppositely threaded ends so that the rotation of the bolt in one direciton tightens both nuts and rotation in the opposite directions loosens the nuts.

Abstract: A splice for splicing together the steel armor wires (3, 3') of two armored electric cable ends (1, 1') after the remainder of the cable has been spliced, and in which the end of each armor wire of one of the cable ends is joined to the end of a corresponding armor wire of the other cable end by means of a sleeve (4). Each sleeve comprises a right-and-left screw link into which correspondingly right hand and left hand threaded armor wires ends are screwed. The cable may be a submarine cable for transporting electrical power.

Abstract: A prevailing torque adjusting element, which in the described embodiment is in the form of a sleeve, for connecting motor vehicle tie rod or other turnbuckle assemblies, having a plurality of linearly extending substantially parallel deformations spaced apart around the sleeve, extending substantially the entire length of the sleeve, except for the ends, which deformations hold at least one rod member threadably in said sleeve in a positive, yet adjustable, fashion. Also disclosed is an apparatus and method for forming a threaded sleeve member into a prevailing torque adjusting element of the present invention comprising upper and lower dies, each having notches, wherein said sleeve may be placed between said dies in a predetermined manner to form a sleeve member or the like into a prevailing torque adjusting element of the present invention.

Abstract: A modular room divider system has plural upright juxtaposed panels having cylindrical anchor receiving apertures disposed about upright axes in the panels top and bottom surfaces. A coupling assembly has a pair of spaced apart anchors mating with the anchor apertures. Threaded portions having opposingly directed right and left hand threads extend inwardly from the anchors and are centrally engaged by an internally threaded sleeve having adjacent right and left hand threaded portions. The sleeve has a square prismoidal exterior surface and is traverseable by a notched wheel having a mating central aperture. A channel extends from the anchor apertures to the edge of each channel.In use, two panels are assembled by placing them in juxtaposition. The coupling assembly is placed in alignment over the panels, the anchors being lowered into the anchor apertures and the threaded portions over corresponding channels.

Abstract: Disclosed is a lock to lock open the speed brake doors of an aircraft to facilitate servicing the brake mechanism. The lock cooperates with lightening holes in the internal stiffening structure of the speed brake. The lock is adjustable to provide different amounts of brake opening. Surfaces of the lock that contact the aircraft speed brake structure are fabricated of resilient material to protect the aircraft.

Abstract: A tightener for securing tire chains about industrial tires. The tightener includes a pair of block members that are threadably engaged by a draw bolt. The draw bolt includes a tool engaging surface that facilitates attachment of a tool to turn the draw bolt about its central axis and correspondingly move the block members axially toward or away from one another. A pair of non-extensible lengths of chain are connected to each block and extend outwardly to free ends that are adapted for connection to the side rail chain of an industrial tire chain. Therefore, the tightener may be mounted with the length of chain connected to the side rail chain and the blocks and draw bolt substantially centered on the tire axis. The draw bolt may then be rotated to bring the block members axially together, pulling inwardly on the side rail chains to tighten the tire chain about the tire periphery.

Abstract: A lift assembly which extends through the boat deck to the bow or keel and includes a combination lifting-eye and cleat mounted to the deck, a rigid strap mounted to the bow or keel of the boat having an arcuate closed loop portion with a slot therein extending in the arcuate direction. A cylindrical nut is rotatably received in the loop portion of the strap and a rigid rod extends through the slot and is threadedly secured to the nut, the other end thereof being threadedly connected to the lifting-eye. In the case of a bow mounted strap, the bow-eye, which is in the form of a U-bolt, extends through the bow and a pair of apertures in the strap and is secured thereto by means of nuts which clamp the strap to the bow.

Abstract: A telescopic load binder (1) with a tubular barrel (2) and a pair of oppositely threaded members (7,8) threaded into the opposite ends of the barrel and method of assembling same. When assembled, the load binder is designed to prevent subsequent inadvertent disassembly and includes means (13,14) placed on the threads of the members to prevent their removal from the barrel without breaching the barrel itself. A threaded cylindrical insert (12) is inserted into the barrel at one end and enables and facilitates load binder assembly.

Abstract: A tree and stump splitter having a vertical edged splitting blade, a horizontal cut off blade, and quick attachment means to secure the splitter to a bulldozer blade.

Abstract: A safety lock take-up turnbuckle device with a simple and inexpensive adjusting and locking mechanism which forms part of the device. The adjusting and locking mechanism prevents slipping of the turnbuckle and also theft of a load secured by the turnbuckle.

Abstract: Apparatus for positioning and moving heavy elements relative to one another is disclosed. The apparatus comprises a pair of spindles threadably engaged in opposite ends of an elongated protective socket member. Each spindle is provided with a pair of axially spaced slide surfaces engaging with cooperating surfaces on the socket for minimizing the flexural or bending strain on the spindle. At least one slide surface of each spindle and its cooperating socket surface is arranged to prevent disengagement of the spindle from the socket. A synchronizer element, having polygonal ends, is axially mounted in the socket member, the polygonal ends of which synchronizer element engage in differently-shaped polygonal bores in a respective spindle to permit relative rotation between the spindles of a maximum of 90.degree. and to prevent one of the spindles from being threaded either to its extended or retracted position independently of the other spindle.

Abstract: A unitary lockable turnbuckle constructed from an elongated member, which is partially slit at two axially spaced-apart locations so as to form an interconnected barrel with a nut at each end. A thread is formed in each nut and the adjacent portion of the barrel, the thread at one end being of opposite hand from the thread at the other end. The slits leave reduced shear sections which break when the nuts are sufficiently torqued in opposition to the barrel. Preferably the width of the slit is reduced substantially to zero before the thread is formed.

Abstract: A connector for barges and the like is provided in the form of a threaded ratchet tube, a central ratchet drive for rotating said tube, an annular drive wheel surrounding and connected to said tube for rotating the same, separate right and left hand threaded screw members having one end threaded into said tube, fastening means on the other end of each said screw members and removable anchor means adapted to engage a surface over which the ratchet tube extends engaging one of said fastening means and holding said tube above said surface a distance greater than the radius of said annular drive wheel.

Abstract: A subcutaneous guide assembly for use by surgeons during an operation where surgical elements must be passed through an elongated path internal to a human body. The guide assembly includes an elongated rod of predetermined contour and length which is secured on opposing ends to a handle member and to one of a variety of surgical elements which may be releasably secured to the rod through threaded engagement. Additionally, a plurality of rod members of differing lengths and contours may be easily secured to the handle section of the subcutaneous guide assembly. The handle section includes an internal chamber where various surgical elements may be contained for use in particular portions or phases of an operation. The handle further includes a mechanism whereby the contained surgical elements within the handle internal chamber may be easily sterilized.