266results about How to "Slide freely" patented technology

A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces and upper and lower plates. At least one of the curved surfaces of the core is metallic, and in some embodiments the entire core is metallic. Each plate has an outer surface which engages a vertebra and a metallic inner curved surface which is shaped to slide over one of the curved surfaces of the core. In some embodiments, the center of rotation of the core is free to move relative to the upper and lower metallic plates. In some embodiments, one or more channels extend across one or both of the curved surfaces of the core for allowing passage of bodily fluid to promote lubrication between the core and at least one of the plates.

A reversible wrist brace includes a sheet of flexible material that overlies and supports a wearer's wrist, wherein the sheet of material includes opposing surfaces each having one or more portions of loop material. The flexible sheet has at least one opening in the vicinity of a lateral edge to accommodate at least one fastening strap, such that the strap may slide within the opening. The fastening strap is a continuous loop of sheet material having an outer surface with a hook-bearing portion. The fastener is designed so as to enable a wearer to switch the wrist brace between right and left hands by orienting the hook-bearing portion so that it is coincident with the loop-bearing portion when the wrist brace is worn on either hand. The wrist brace may include a splint that may be inserted within a pocket located on the flexible material to further immobilize the wrist.

A stand holding virtually any vehicle engine and gearbox respectively during repair and renovation allowing clear access to every side of thereof, carrying a base structure (1) an immovable column (7), a horizontal immovable tube (9), includes a movable support assembly (12) and a pair of rotatable adjustable carrier assemblies (20) being distanced from one another. The support assembly is capable of varying the distance between a pair of carrier assemblies to correspond with the size of engine and of gearbox respectively. Each of the pair of carrier assemblies including an arm and a carrying plate connected by way of the connecting member; rather two handles adjustably coupled to corresponding carrying plate by first ends and having bolts threaded through second ends and corresponding adapters for receipt within corresponding holes of engine and gearbox respectively. The arms rotatably and adjustably threaded through horizontal tube (9) and horizontal support member (18) respectively such that carrier assemblies being positioned inside of the device between column (7) and vertical support member (17) to hold engine and gearbox respectively to allow clear access to every side of engine and gearbox, respectively. The arms have a plurality of holes to adjust the distance between column (7) and vertical support member (17) respectively and engine and gearbox respectively.

A belt-type continuously variable transfer system (15) includes a driving pulley assembly (20), a driven pulley assembly (22) and a V-shaped belt (24) engaged to transfer rotary power therebetween. The driven pulley assembly (22) can include a ratio adjustment mechanism (46) that adjusts the position of a rear sheave (40) relative to a forward sheave (42). The adjustment mechanism (46) includes a motor (170) and a worm gear mechanism (171, 172) that rotates an actuation screw (154). Rotation of the actuation screw (154) is reacted by a split nut (158) so that as the screw (154) rotates is translated along the axis (B) of the driven pulley assembly (22). Translation of the actuation screw (154) exerts pressure against the rear sheave (40) to push it toward the forward sheave (42), thereby altering the drive ratio of the pulley assembly. In one feature, the driven pulley assembly (22) includes a fail-safe mechanism (48) that operates when power is supplied to the motor (170) to hold the split nut (158) together. Once power is disrupted, the fail-safe mechanism (48) allows the components (1 58a-c) of the split nut (158) to be separated, disrupting the threaded engagement with the actuation screw (154). At this point, the actuation screw (154) is driven forward by a compression spring (190), thereby driving the rear sheave (40) forward to a predetermined drive ratio position. In another aspect of the invention, the driving pulley assembly (20) includes an idler pulley portion (65) radially inboard from the normal driving sheave surface (29, 31). As the belt speed decreases, the belt (24) migrates downward within the driving pulley assembly (20) until it falls within the idler pulley portion (65). At this point, the belt (24) is isolated from the rotation of the driving pulley assembly (20). The driving pulley assembly (20) also includes a belt tensioning mechanism (32) that maintains proper belt tension at all speeds and drive ratios. The tensioning mechanism (32) relies upon a pivotably mounted centrifugal weight arm (101) to provide tensioning as a function of speed. A compression spring (80) provides axial pressure to maintain belt tension over all drive ratios. The spring (80) acts against a specially curved cam edge (92) on a pivoting lever arm (90), which arm (90) transfers an axial force to the rear sheave (28) of the driven pulley assembly (20).

A unison ring assembly for an axial compressor casing is provided. The unison ring assembly includes a unison ring and at least three unison ring supports being radial inwardly and equally spaced arranged along a circumference of the unison ring, wherein each unison ring support has a unison ring bracket attached to the unison ring. Further, the unison ring assembly includes a slide bearing to be sliding along a slide face of an outer surface of the compressor casing and a resilient member being arranged between and coupled to the slide bearing and the unison ring bracket such that the unison ring is rotatable around the compressor casing by sliding the slide bearing along the slide face and to be centered free of clearance about the compressor casing. The resilient member is adapted to accommodate radial displacement of the compressor casing.

A roller assembly for supporting a moving belt and including at least one roller mounted for rotation about a roller axis; and a support arrangement, the roller assembly being mounted on the support arrangement for pivotal displacement about a pivot point, characterized in that the belt tracking regulator includes guide means operable, in use, to constrain the pivotal displacement of the roller assembly to move in a plane containing the pivot and tilted at an acute angle with respect to a horizontal plane defined through the pivot point.

A quick-change attachment configuration is directed to a tool for use with a hole saw for boring holes on a wooden plank, particularly the quick-change attachment configuration is arranged for quickly replacing a longitudinal body, which is a drill bit shank having a driving end, a tool end, and a limiting portion. The configuration includes a quick-change attachment for assembling a longitudinal body and a hole saw which has an axial hole for allowing a longitudinal body to move on the quick-change attachment, and a locking component for locking and releasing the longitudinal body on and from the quick-change attachment. The locking component has a first component and a second component, which when used, the longitudinal body is easily moved slidably and locked so the shreddings emerging from the hole saw are cleaned.

Provided is a blood collection tube preparing apparatus which is simple, downsized, portable, capable of being easily placed on a desk or the like, excellent in responding to an emergency such as a disaster, and capable of preparing various kinds of blood collection tubes depending on a blood collection instruction from a doctor. A blood collection tube holding member is arranged along one transferring belt and between a forward-side transferring belt and a backward-side transferring belt of the one transferring belt, and lower end surfaces of a cap of a blood collection tube is supported on upper end surfaces of the blood collection tube holding member and the forward-side transferring belt. The forward-side transferring belt applies a transferring force to the blood collection tube through the cap. Further, the members constituting a storage box are accommodated in one module, and the storage box is detachably mounted onto a mounting portion of an apparatus main body. Further, the storage box is in the form of module, and hence an operation in the case of failure or during maintenance is significantly facilitated.

A continuously variable belt drive system including a driving pulley assembly, a driven pulley assembly, and a V-shaped belt engaged to transfer rotary power therebetween is disclosed herein. The driving pulley assembly includes an idler pulley portion. As the belt speed decreases, the belt migrates downward within the driving pulley assembly until it falls within the idler pulley portions, thereby isolating the belt from the rotation of the driving pulley assembly. The driving pulley assembly also includes a belt tensioning mechanism that maintains proper belt tension at all speeds and drive ratios. The tensioning mechanism relies upon a pivotably mounted centrifugal weight arm to provide tensioning as a function of speed. A compression spring provides axial pressure to maintain belt tension over all drive ratios. The spring, acts against a curved cam edge on a pivoting lever arm, which arm transfers an axial force to the rear sheave of the driven pulley assembly.

Instrument holder comprising a shank (1) equipped with a head (2) designed to receive an instrument and a locking component (4) pushed against the head by a spring (9) bearing on a ring (11) sliding on the shank, and having means of connection (8, 12) on the shank which is engaged by rotation of the ring, in such a way that the release of the ring allows the locking component, the spring and the ring to slide freely in order to permit cleaning of the instrument holder.