58 results about "Radial notch" patented technology

An assembly including an implantable part designed to be fastened to at least one bone or bone portions to be joined and at least one screw for fastening the implantable part to the at least one bone or bone portions. The implantable part includes at least one tapped hole and the screw includes a head designed to be engaged in the tapped hole. The tapped hole is cylindrical and includes at least one radial notch emerging in a surface of the implantable part through which the screw is designed to be engaged in the tapped hole. The radial notch produces an interruption in the tapping included by the tapped hole. The head of the screw is conical, with an apical angle of between 15 and 25°.

The invention discloses a static spinning nano-fiber yarn system and a preparation method for the nano-fiber yarn. The invention comprises a rotation axis which is provided with a disc grooved along the radius, a sliding block and a cutter groove, wherein, the upper surface of the disc is provided with an annular copper film which has a radial notch corresponding to the groove of the disc; the upper part of the disc is provided with a syringe, the outlet of which is provided with a metal syringe needle connected with the positive pole of a direct-current high voltage generator. One end of the cutter groove goes through the disc groove to contact with both sides of the radial notch of the copper film and be connected with the negative pole of the direct-current high voltage generator; a cutter with one free end is arranged in the cutter groove, wherein, the free end extends above the disc through the disc groove and moves along the groove. The sliding block slides axially along the rotation axis. Furthermore, the outer side of the disc is provided with a silk guide roller, a twister, a winding roller and a lead recovery roller. The spinning solution is made into nano-fiber yarn by the system. The yarn prepared by the invention has relatively higher strength, thus being prospective to provide the static spinning fiber products with a wider application field.

An assembly including an implantable part designed to be fastened to at least one bone or bone portions to be joined and at least one screw for fastening the implantable part to the at least one bone or bone portions. The implantable part includes at least one tapped hole and the screw includes a head designed to be engaged in the tapped hole. The tapped hole is cylindrical and includes at least one radial notch emerging in a surface of the implantable part through which the screw is designed to be engaged in the tapped hole. The radial notch produces an interruption in the tapping included by the tapped hole. The head of the screw is conical, with an apical angle of between 15 and 25°.

A single step method and apparatus for the production of expanded metal mesh from deformable metal strip such as lead or lead-alloy strip for use in lead-acid battery manufacture. The apparatus comprises a pair of opposed rolls each having a plurality of spaced discs having opposite side walls and circumferential, equally spaced, convexly shaped tool surfaces alternating with substantially flat surfaces, said discs having radial notches formed in the opposite sidewalls of alternate circumferential flat surfaces, whereby peripheral surfaces of opposing rolls are adapted to interact on deformable strip passing therebetween to concurrently slit and form convex wire segments and alternate nodes in said strip by intermeshing of said shaped tool surfaces. The method includes concurrently slitting and forming transverse rows of elongated, convexly-shaped wire segments deformed out of the plane of the strip with laterally adjacent wire segments extending from opposite sides of the plane of the strip, the lateral rows separated by alternately slit segments retained in the plane of the strip together defining nodes extending laterally across the strip.

The tamperproof closing device for a receptacle having a threaded collar comprises a screw cap (1) consisting of a bottom (8) and a cylindrical skirt (9) having inner threading for co-operation with the corresponding threading (5) on the collar (2) and extended by a tamperproof ring (13) which is attached by frangible means (20). The collar has a plurality of outer radial notches arranged at the base thereof. Said notches are circumferentially oriented and the ring comprises a plurality of inner radial reliefs (15) whose profile is complementary to that of the notches (7). The orientations and dimensions of the notches (7) and reliefs (15) are determined in such a way that the second items can pass onto the first items in the direction of screwing as a result of elastic deformation of the constitutive material and can prevent the same from occurring in the opposite direction. The reliefs (15) are formed on an annular lip (14) which is turned back and originates from the tamperproof ring (13). When it leaves the mould, said lip (14) forms an annular truncated appendix converging slightly towards the inside and bearing the reliefs on the outside (15).

An I.S. machine has a blankmold which is open at the top and includes inner and outer annular top sealing surfaces. Associated with the blankmold is a baffle including a body having a cup shaped portion closed with a vertical cylindrical bore open at the bottom, an annular bottom sealing surface for sealingly engaging the blankmold outer annular top sealing surface, and a top having a hole. A tubular sleeve communicates with the hole and extends vertically upwardly from the top of the body. A piston has a cylindrical head including a top surface, a cylindrical sealing surface and an annular bottom sealing surface having a plurality of radial notch means across the bottom thereof. A tubular rod extends vertically upwardly from the top surface for slidable displacement in the tubular sleeve, and a collar is secured to the top of the rod. A spring located between the collar and the cup shaped portion urges the cylindrical head vertically upwardly to a position whereat the cylindrical head top surface engages the top of the cup shaped portion. The collar is pneumatically displaced vertically downwardly at a high pressure to bring the cup shaped portion annular surface into sealing engagement with the blankmold outer annular sealing surface. The pressure is then reduced so that a predetermined distance separates the cylindrical head annular bottom sealing surface and the blankmold inner annular sealing surface so that settle air can be introduced into the mold, and then the pressure is again raised to the high pressure for parison formation.

The invention discloses a superconducting magnet based on a high-temperature superconducting circular ring piece belonging to the application field of a superconducting magnet. A superconductive magnet is formed by alternately stacked a superconducting ring sheet and an insulating sheet from bottom to top, adding a flange sheet from top to bottom, and connecting and fixing that flange sheet through an insulating tie rod. Wherein the insulating sheet is replaced by a Cu sheet with a radial notch coated with insulating paint on both sides of the insulating sheet; A magnetic flux pump is arrangein that positioning hole aft assembly, and the superconducting magnet is excited by the magnetic flux pump without the current lead and the direct current power supply. The superconducting magnet hasthe advantage of simple structure, compact structure, detachability, easy insulation treatment and simple operation, and can realize the closed-loop operation of the superconducting magnet.

The invention discloses a thread twisting disk. The thread twisting disk comprises a thread disk arranged between a shell and an end cover. Spiral lines are arranged at the front end of the thread disk, fan-shaped bosses are arranged on the back face of the thread disk. A radial notch is formed in the front end face of the shell in the radial direction, a jack catch penetrates the notch in the shell, and fixing teeth at the tail end of the jack catch are embedded among the spiral lines of the thread disk. The front end face of an adjusting knob is attached to the back face of the thread disk through the matched fan-shaped bosses, and the rear end face of the adjusting knob extends out of the end cover. According to the thread twisting disk, the radial notch is formed in the shell, the jack catch can move in the radial direction in the notch, rotation of the thread disk can drive the jack catch to move in the radial direction, and therefore the opening degree of the jack catch can be adjusted to adapt to different sizes, and the adjusting knob is rotated and can drive the thread disk to rotate. The thread twisting disk has the beneficial effects of being simple in structure, convenient to use, carry, mount and dismount and wide in application range.

A mechanism for controlling and positioning a pivotable handle having lateral axes and extending from the frame of a floor jack, includes a pair of cylindrical discs fixed vertically to the lateral axels, and each has a plurality of radial notches in the periphery thereof. A U-shaped lever arm has each open end pivotally attached to the frame of the floor jack adjacent to and extending generally tangentially to the notched discs; and has a lug projecting toward the discs; and has the U lever handle at the other end extending beyond the rearward end of the frame for actuation by the toe of an operator. The lever arm is pivotable in one direction for engaging the lugs into one of the notches of the discs to fix the position of the handle in a desired angle relative to the frame; and the lever arm is pivotable in the other direction for disengaging the lugs from the notches of the discs so that the handle is free to pivot about the lateral axels.

The invention provides an elastic coupling of a one-way precise diaphragm, which has the advantages of simple structure, low cost and capability of supporting large repeated fluctuating loads, impact loads and bending moment. An input flange and an output flange of the elastic coupling and the diaphragm between the input flange and the output flange are connected by bolts; an expansion sleeve consisting of an outer conical ring and an inner conical ring is arranged in shaft holes of an input shaft and an output shaft; the inner conical ring and the outer conical ring are cones which have radial notches and are unclosed in a circumferential direction; the outer peripheral surface of the inner conical ring and the inner peripheral surface of the outer conical ring are conical surfaces which are matched mutually; the elastic coupling also comprises two end covers which are respectively connected with the input shaft and the output shaft through the bolts in an axial direction; and compaction parts which extend into the shaft hole of the input shaft or the output shaft and are contacted with the end face of the expansion sleeve are arranged on the end cover, and when moving along the axial direction, the compaction parts push the inner conical ring or the outer conical ring to move axially and reduce the inner peripheral diameter of the inner conical ring.

The invention discloses a cold-guided superconducting magnet based on annular superconducting sheets, and belongs to the field of superconducting magnet application. The superconducting magnet is composed by alternately stacking the annular superconducting sheets and insulating Cu sheets from bottom to top, wherein flanges are added at the top and bottom respectively, and fixed connection is performed through an insulating pull rod. The annular superconducting sheets and the insulating Cu sheets are provided with positioning holes, a magnetic flux pump is placed in the positioning holes, the superconducting magnet is excited through the magnetic flux pump, and current leads and welding resistors are not needed. The two faces of the insulating Cu sheets are coated with insulation varnish, the diameters of the insulating Cu sheets are same as those of the annular superconducting sheets, and radial notches are formed. The insulating Cu sheets are provided with connectors directly connected with a refrigerator, and a cold-guided cooling structure is adopted, so that the thermal stability is higher. The superconducting magnet has the advantages that the structure is simple, the stability is high, detachability is achieved, insulation treatment is easy, and the closed-loop operation of the superconducting magnet can be achieved.

The double action radial plunger pump has plunger installed inside the plunger hole in the rotor, and features the stepped plunger comprising at least two coaxial sections of different outer diameters and the plunger hole in the corresponding shape. The stepped plunger has one radial notch in the end far from the flow distributing shaft, and inside the notch there is one annular holding cavity with the axis of the stepped plunger as axis. Inside the stepped plunger, there is one axial through hole, inside which one monoway valve comprising spring and piston is installed. The inner stator surface has projection curve in the flow distributing axis direction comprising smoothly connected octonal curves.

A sprinkler includes a shunt, a water-control shaft, a switch and a detergent storage pipe, wherein the shunt is provided with axial hole vertically connected to radial notch. Both sides of this shunt are vertically equipped with diversion holes. The top ends and bases of both diversion holes are separately connected to radial notch; the rotatable water-control shaft is linked to the radial notch of shunt. The middle section of the rod is provided with a concave main notch and a water panel. Both sides of main notch are equipped with two secondary notches. The radial positions of secondary notches are staggered, of which opposite internal edges of secondary notches are connected to main notch.

An I.S. machine has a blankmold which is open at the top and includes inner and outer annular top sealing surfaces. Associated with the blankmold is a baffle including a body having a cup shaped portion closed with a vertical cylindrical bore open at the bottom, an annular bottom sealing surface for sealingly engaging the blankmold outer annular top sealing surface, and a top having a hole. A tubular sleeve communicates with the hole and extends vertically upwardly from the top of the body. A piston has a cylindrical head including a top surface, a cylindrical sealing surface and an annular bottom sealing surface having a plurality of radial notch means across the bottom thereof. A tubular rod extends vertically upwardly from the top surface for slidable displacement in the tubular sleeve, and a collar is secured to the top of the rod. A spring located between the collar and the cup shaped portion urges the cylindrical head vertically upwardly to a position whereat the cylindrical head top surface engages the top of the cup shaped portion. The collar is pneumatically displaced vertically downwardly at a high pressure to bring the cup shaped portion annular surface into sealing engagement with the blankmold outer annular sealing surface. The pressure is then reduced so that a predetermined distance separates the cylindrical head annular bottom sealing surface and the blankmold inner annular sealing surface so that settle air can be introduced into the mold, and then the pressure is again raised to the high pressure for parison formation.

The invention discloses a shock-absorption sole, and specifically provides a comfortable and light shock-absorption sole with spring type reliable shock absorption performance and air bag type shock absorption performance at the same time. The shock-absorption sole comprises an insole and an outsole, wherein the insole adopts a PU injection molding process, the outsole is made of natural rubber, the shock absorption sole is provided with a shock-absorption component which is a hollow pad, and the upper center of the hollow pad is opened; the opening periphery of the shock-absorption component is upward extended with a convex edge to form a convex shape; the convex edge is provided with a plurality of outward radial notches from the center to the peripheral four radial directions; the insole is provided with an air import / export pipeline which is extended to the heel from the front sole part to communicate with the shock-absorption component; and the outsole, the insole and the shock-absorption component are fixed together to combine the advantages of the air bag type shock-absorption technology and the spring type reliable shock-absorption technology.

A rotor of a turbomachine, such as a multi-flow turbojet engine fan, has a disc including, on the rim thereof, substantially axial slots with a dovetailed cross-section, and blades mounted individually in the slots, an axial wedge positioned between the root of the blades and the bottom of the slots, and a transverse lock providing upstream axial immobilization of the blades in the slot thereof. The lock is guided in radial notches formed in the flanks of the slots and radially supported against the wedge. The axial wedge is immobilised in the upstream direction, butting up against a transverse annular component secured to the disc.

A turbine stage for a turbomachine, the stage comprising a rotor wheel mounted inside a sectorized ring carried by an outer casing, and a sectorized nozzle fastened to the casing downstream from the wheel, each ring sector having a downstream end that is held bearing radially outwards against a cylindrical rail of the casing by means of the nozzle, the casing rail including an annular row of through radial notches reducing the areas for heat exchange by conduction both between the casing and the ring sectors and between the casing and the nozzle.

A single step method and apparatus for the production of expanded metal mesh from deformable metal strip such as lead or lead-alloy strip for use in lead-acid battery manufacture. The apparatus comprises a pair of opposed rolls (116, 118) each having a plurality of spaced discs (122, 124) having opposite side walls and circumferential, equally spaced, convexly shaped tool surfaces alternating with substantially flat surfaces, said discs having radial notches formed in the opposite sidewalls of alternate circumferential flat surfaces, whereby peripheral surfaces of opposing rolls are adapted to interact on deformable strip passing therebetween to concurrently slit and form convex wire segments and alternate nodes in said strip by intermeshing of said shaped tool surfaces. The method includes concurrently slitting and forming transverse rows of elongated, convexly-shaped wire segments deformed out of the plane of the strip with laterally adjacent wire segments extending from opposite sides of the plane of the strip, the lateral rows separated by alternately slit segments retained in the plane of the strip together defining nodes extending laterally across the strip.

The invention relates to a protective device for drinks cans. The inventive device consists of a thin, deformable discoid body comprising numerous radial notches along the periphery thereof. Internally, the device comprises a series of curvilinear cuts which are concentric with the edge of the disk, thereby defining peripheral areas which are intended to be positioned below the upper rim at the top of the cylindrical body of the can.

A rotary control indicator includes a knob with a reflective interior. The knob rotates in concert with a clear shaft which receives light from an LED. The knob further includes a radial notch. Light is reflected by the reflective interior to illuminate the control panel around a periphery of the knob. Further, light is projected out the radial notch to indicate the knob position.

The invention belongs to the technical field of displaying screens and particularly relates to a cylindrical outdoor LED advertising screen for a street lamp pole. According to the cylindrical outdoorLED advertising screen for the street lamp pole, a mounting frame is arranged on the upper portion of a hollow lamp post, a solar energy panel is mounted on the mounting frame, and an illuminating lamp is arranged on the front portion of the lower end face of the solar energy panel; a first radial notch is formed in the middle upper portion of the hollow lamp post, an inner ring notch is formed in the position, on the lower end face of the first radial notch, of the inner side wall of the hollow lamp post, and a supporting plate is arranged in the inner ring notch; a servo motor is mounted onthe upper end face of the supporting plate, a plurality of arc-shaped screens define a cylinder, and a centralized controller and a lithium battery pack are further arranged on the hollow lamp post;the centralized controller comprises a control main panel and a wireless network data transmitting module, the control main panel is connected with the wireless network data transmitting module and the lithium battery pack, and the lithium battery pack is connected with the solar energy panel; and the output end of the control main panel is connected with the illuminating lamp, the servo motor andthe arc-shaped screens, and the centralized controller is connected with a remote control terminal through a wireless network.

The present invention relates to a contact device (15) of a starter contactor (1) comprising: - a contact rod (17) made of an electrically insulating material, - a contact strip (19) made of an electrically conducting material comprising a hole (19a) in which is mounted the contact rod (17), - a squashing spring (25), - a restoring spring (27), the contact device (15) also comprises a closure clip (33) of radial width greater than or equal to the diameter of the squashing spring (25), a radial notch (33a) being made in said closure clip (33), said radial notch (33a) receiving a portion of the contact rod (17), the squashing spring (25) being mounted compressed between the closure clip (33) and the contact strip (19) which is in abutment on a retaining collar (17a) of the contact rod (17).

The invention discloses a variable-diameter positioning pin structure and a multiple-vehicle-type rail trolley. The variable-diameter positioning pin structure comprises a mounting seat, a rotating disc, a servo motor, a protective cover and a plurality of pin claws. The servo motor is mounted on the mounting seat, a shaft hole is formed in the mounting seat, and an output shaft of the servo motorpenetrates through the shaft hole to be connected with the rotating disc. The protective cover is mounted on the outer side of the rotating disc in a sleeving mode and connected with the mounting seat. A plurality of radial notches are formed in the upper surface of the protective cover. The pin claws are mounted on pin claw seats, and the pin claw seats are mounted in the radial notches correspondingly. A rotating disc thread is arranged on the upper surface of the rotating disc. Pin seat threads are arranged at the bottoms of the pin claw seats. The multiple pin claws are evenly distributedto form a positioning column in a surrounding mode. The servo motor makes action to adjust the outer diameter of the positioning column. According to the variable-diameter positioning pin structure and the multiple-vehicle-type rail trolley, the diameter of the positioning column can be adjusted specific to vehicle body positioning holes of different vehicle types, and the step that the differentvehicle types are equipped with different positioning pins of the rail trolley is not needed, so that the structure is simple, operation is convenient, the cost is saved, resource waste is reduced, and storage of the rail trolley is facilitated.

The invention provides a swinging-bucket type rotor pump. The swinging-bucket type rotor pump comprises a cylinder-shaped shell, a rotor, a crankshaft, a plurality of support arms and a plurality of swinging buckets, wherein the rotor is eccentrically positioned relatively to the axis of the cylinder-shaped shell and provided with a plurality of radial notches that divide the rotor into a plurality of parts, one end, which is arranged along the circumferential direction, of each part is a connecting end, and the other end is provided with a circular arc surface; the crankshaft comprises a first part and a second part, the first part is coaxial with the central shaft of the rotor and supported by the central shaft of the rotor, and the second part is coaxial with the cylinder-shaped shell;one end of the each support arm is pivotally connected with the second part fixing the crankshaft; and each swinging bucket is arranged on the notch of the corresponding rotor respectively, one end of the swinging bucket is pivotally connected with the connecting end of one part of the rotor, and the other end of the swinging bucket is pivotally connected with the other end of the corresponding support arm, the other end of the swinging bucket comprises two sections of circular arc surfaces which are mutually tangential, one section of circular arc surface is matched with the circular arc surface of the adjacent part, and the radius of the other section of circular arc surface is equal to the length difference of the internal diameter of the cylinder-shaped shell and the support arm.

The invention discloses a rod milling cylinder for a rod mill, a cylinder cover and an installation method of the rod milling cylinder. The rod milling cylinder comprises a cylinder body (1) and a cylinder cover, wherein a circle of round spigot (2) is formed in the top of the cylinder body, two radial notches are symmetrically formed in the circular spigot in regard to the center, first bosses (3) and second bosses (4) which are continuously distributed along the axial direction of the cylinder body are arranged at the position, below the circular spigot, in the cylinder body, the cylinder cover comprises a circular cover plate (5) which can be conformal adapted to the second bossed and arc cover plates (6) which can be conformal adapted to the two radial notches, the arc cover plate sandthe circular cover plate are concentric, and the arc cover plates are fixedly connected with the circular cover plate through a rigid connecting piece (7) and a spring (8) in sequence. The rod milling cylinder has the beneficial effects that a manual self-locking device is formed by the rigid connecting piece, the spring and the arc-shaped cover plates so that the cylinder cover can be assembledand disassembled conveniently and quickly, the structure is reasonable in design, the sample is not prone to loosen and leak in sample preparation, the sample preparation quality meets the geologicalspecification requirement.

The invention provides a flexible joint including at least one flexible joint unit. The flexible joint unit has a side wall and a hollow structure extending along a predetermined axis and surrounded by the side wall. A part of the side wall is cut to form a bending section which is used for forming a predetermined bending posture; the bending section has at least one bending joint, the bending joint has a radial notch and a connecting rib, and the radial notch is formed by cutting the side wall; the connecting rib is formed by the remaining side wall connected between two ends of the bending section. When the flexible joint is not stressed, the connecting rib forms an arc shape relative to the axis. After two ends of the flexible joint are stressed, a relatively definite and predictable bending path can be generated, the flexible joint is bent in a predetermined direction through the arc-shaped connecting rib, and the predictable bending posture can be obtained.

A non-split, unitary insert for a shear-type flexible shaft coupling is provided. The insert has an inner ring and an outer ring that is non-removably joined to and encircles the inner ring. The inner ring is constructed of a material having a durometer that is less than the durometer of the material forming the outer ring. In embodiments both of these materials are polyurethane. This arrangement permits slots of the inner ring to shear while retaining the integrity of insert by preventing destruction of the outer ring during shear of the slots. The outer ring may include one or more radial tabs that are received by corresponding one or more radial notches in the inner ring to prevent separation of the rings under load.

A contact device (15) of a starter contactor (1) comprising:—a contact rod (17) made of an electrically insulating material,—a contact strip (19) made of an electrically conducting material comprising a hole (19a) in which is mounted the contact rod (17),—a squashing spring (25),—a restoring spring (27), the contact device (15) also comprises a closure clip (33) of radial width greater than or equal to the diameter of the squashing spring (25), a radial notch (33a) being made in the closure clip (33), the radial notch (33a) receiving a portion of the contact rod (17), the squashing spring (25) being mounted compressed between the closure clip (33) and the contact strip (19) which is in abutment on a retaining collar (17a) of the contact rod (17).

The invention relates to a stator consisting of a plurality of metal sheets (1a, 1b, 1c,..., 1n) forming a generally cylindrical packet of metal sheets (1), said stator having a plurality of radial notches (2), each being delimited by two adjacent teeth (3) extending radially and being connected to one another by the proximal end (3A) thereof, the distal ends (3B) thereof defining a cylindrical axial recess capable of receiving a rotor and being provided with tooth roots (4), an insulator (5) for insulating the bottom of the notch which is provided inside the notches and covers the inner wall of said notches along the useful boundary for receiving conductive wires (F), said stator further comprising a plurality of flat shims (6) for closing the notches, characterised in that each notch-closing shim is arranged inside a notch, at a distance greater than zero from the lower end of the notch-bottom insulator.

The present invention refers to a gas burner crown for kitchen hob, of the type with a radial series of notches, composed of shallower notches alternated with deeper notches, which act as small burner nozzles, from which small radial flames originate; the crown is characterised by the presence of eight regularly spaced angular sectors with shallower radial notches.