131 results about "Bridging position" patented technology

A virtual or augmented reality headset is provided having a frame, a pair of virtual or augmented reality eyepieces, and an interpupillary distance adjustment mechanism. The frame includes opposing arm members, a bridge positioned intermediate the opposing arm members, and one or more linear rails. The adjustment mechanism is coupled to the virtual or augmented reality eyepieces and operable to simultaneously move the eyepieces in adjustment directions aligned with the plurality of linear rails to adjust the interpupillary distance of the eyepieces.

A phase change memory device comprises a photolithographically formed phase change memory cell having first and second electrodes and a phase change bridge positioned between and electrically coupling the opposed sides of the electrodes to one another. The phase change bridge has a length, a width and a thickness. The width, the thickness and the length are less than a minimum photolithographic feature size of the process used to form the phase change memory cell. The size of the photoresist masks used in forming the memory cell may be reduced so that the width and the length of the phase change bridge are each less than the minimum photolithographic feature size.

A device for the temporary position fixing of adjacently arranged aircraft structures to be interconnected includes a support frame with at least one vacuum suction cup for temporary surface attachment and with clamping means for the position fixing of the aircraft structures to be interconnected. The support frame with the at least one vacuum suction cup in the region of a transverse gap is attached on the side of one aircraft structure. The support frame includes mechanical contact pressure means for the gap-bridging position fixing of the adjacent other aircraft structure. On the support frame there is a counter support to pressure elements of the contact pressure means.

The invention relates to a cast welding mold for lead-acid storage batteries and a bridge welding method for buses. The cast welding mold comprises bus positions and bridge positions. The depths of the bridge positions are larger than those of the bus positions, slots are formed in the cast welding mold, each slot is positioned between the two corresponding bridge positions, one end of each slot is positioned at the edge of the cast welding mold, the other end of each slot is located at the corresponding bridge position, isolation cores are horizontally mounted in the slots in an insertion manner, and the depths of the slots are smaller than those of the bridge positions. The bridge welding method includes inserting the isolation cores into the slots when bridge welding is performed on the buses; filling lead into the mold; positioning and turning pole groups of the batteries; perpendicularly and downwardly inserting tabs into the bus positions; pulling out the isolation cores after the mold is cooled and the buses and bridges are formed; removing the pole groups of the batteries from the mold to complete case welding. The cast welding mold and the bridge welding method have the advantages that the buses and the bridges of the batteries are formed at one step, the bridges are consistently fixed by the aid of the mold, and accordingly high current bearing capacity of the lead-acid storage batteries is guaranteed; isolation core devices can be automatically controlled easily, lead consumption is reduced, and the pole groups can be loaded into battery holders conveniently.

The invention is a chain unit comprising first and second link units, a unitary outer plate, and first and second pins. Each link unit comprises two inner plates with two rollers positioned therebetween. The outer plate straddles and is secured to the link units. Outer plate comprises two walls and a bridge positioned therebetween that spans the tooth engaging space between link units. The unitary construction of the outer plate provides a structural integrity that prevents the plates from separating when the chain is exposed to force. A plurality of chain units can be linked together to form a chain.

The invention relates to a multiple thiophene group-containing photochromic compound. A five-membered aromatic heterocycle is taken as a bridge, different numbers of substitute thiophene rings are arranged at the periphery of the five-membered aromatic heterocycle, or/and substitute thiophene rings are arranged at different bridging positions of the five-membered aromatic heterocycle, and the multiple thiophene group-containing photochromic compound is obtained. The multiple thiophene group-containing photochromic compound can realize reversible change of a plurality of colors under the radiation of light with different wavelengths.

A dual function, inboard barrier/bridgeplate assembly for wheelchair lifts having a stowable platform, the barrier being pivotably secured to the inboard end of the lift platform, which barrier is actuated by a link to variously raise the barrier to a safety position and lower it to a bridging position in accordance with the position of the platform. The dual function barrier/bridgeplate system is particularly useful in combination with a parallelogram type lift employing an articulated lever assembly having a sliding block for leveraging the platform from a horizontal transfer orientation to a vertical, or over-vertical stowage position. There is disclosed a barrier assembly in which a spring assist system comprising a gas spring acting on one member of the articulated lever assembly and a lever arm linking a second arm of the articulated lever assembly to the barrier co-operate to actuate the barrier from a raised position when the platform is away from the transfer level and a lowered position to act as a bridge plate at the transfer level. A telescoping push arm is included which actuates the barrier by means of a pivoted link which rotates the barrier in response to the telescoping motion of the push arm. A safety interlock and load detecting system may be employed to prevent the platform from moving to the stowed position when a load greater than a predetermined weight is on the platform. An anti-free fall mechanism is disclosed comprising a pin in the slide block which engages mating slots in the telescoping push arm members to lock their length during the initial stage of deploy of the platform downwardly from the vertical stowed position.

The embodiments herein provide a system and method for instantly switching sound pickups in an electric guitar using a spin wheel arrangement in the middle of a song. The spin wheel houses a pickup assembly with multiple pickups. The spin wheel allows a guitar player to easily roll neck pickup to bridge position and bridge pickup to neck position in middle of a song by rotating the spin wheel. A click stop arrangement halts wheel rotation after completing a semi-circular rotation around a center screw. The backend portion of pickups is connected to spring loaded plunger. The contact pads at bottom portion of guitar body establishes electrical connections between pickups and control components. The pickups under the strings get activated. The spin wheel arrangement allows a guitar player to add favorite pickups for generating various tonalities beyond the limit of a single guitar.

PCT No. PCT/JP97/04687 Sec. 371 Date Aug. 18, 1998 Sec. 102(e) Date Aug. 18, 1998 PCT Filed Dec. 18, 1997 PCT Pub. No. WO98/27573 PCT Pub. Date Jun. 25, 1998A shadow mask opposed to a phosphor screen has a substantially rectangular effective surface (30) where slit-like apertures are formed. The apertures are disposed so as to constitute a plurality of aperture rows which extend in parallel with the short axis of the effective surface and are disposed in the long axis of the effective surface. Each of the aperture rows includes a plurality of aperture, and bridges (38) positioned between any adjacent pair of the apertures. The width B of the bridges in the lengthwise direction of the aperture rows, positioned an intermediate between the short axis of the effective surface and a short side edge thereof is greater than that of the bridges positioned at a peripheral portion of the effective surface.

The invention discloses a method for constructing bridges. The method comprises the following steps of 1) selecting a prefabricated bridge field under the bridge; 2) flattening and planning the prefabricated bridge field; 3) setting prefabricated abutment bases and bridge storage abutment bases in the bridge field, and setting and mounting a bridge field crane, wherein the bridge field crane is arranged on two rails parallel with the bridge, a bridge fabricating area, a bridge storing area and a bridge carrying passage are arranged between the two rails, and the bridge carrying passage is positioned on the side of the bridge fabricating area, near the bridge position; 4) mounting a lifting crane of the prefabricated bridge of the bridge, wherein the lifting crane comprises two fixed gantry cranes, the gap between the two fixed gantry cranes is matched with the length of the prefabricated bridge of the bridge, the gantry cranes are transversely straddled on the bridge surface, and the bridge carrying passage is positioned in gantries of the gantry cranes; 5) constructing the prefabricated bridge of the bridge; 6) carrying the prefabricated bridge of the bridge to the area below the lifting crane; 7) lifting the fabricated bridge to the bridge to form a first section of the bridge surface; and 8) using a bridging machine to complete the bridge erection operation. The method has the advantage that a safe and effective method is provided for the construction and erection of the prefabricated bridge of the bridge in mountain areas, so the high quality and stable quality are ensured during construction, the construction cost is reduced, and the construction period is shortened.

The invention discloses an installing and constructing method of a special-shaped tie bar, an arch bridge and an arch ring. The few-support method manufacturing and installing method of only arrangingtemporary support steel pipe piles at rod piece joints specifically includes the steps of making a preparation before construction, constructing temporary supports in water, hanging steel arch ribs,installing folding sections of the steel arch ribs, welding bridge positions, installing arch rib hanging rods and detaching arch rib temporary supports. During construction, a prefabricating and splicing mode is adopted, splicing is conducted through floating cranes, and the occupation and pollution of a water domain under a bridge are reduced; the multiple procedures are operated in parallel, the construction progress is accelerated, and the construction period is shortened; the temporary supports are only arranged at joint annular seams of large-section arch rib sections, the supports are small in occupied space, the passage under the bridge in the construction state is facilitated, and the influences on the passage under the bridge in across-lake construction and the surrounding socialenvironment are reduced; the errors of the steel arch rib sections are effectively reduced in the construction process, precise positioning and welding are achieved, and the linear manufacturing precision of the special-shaped arch ribs is ensured.

The invention discloses a navigation system for an airport lounge bridge docking an airplane hatch, belonging to the airport lounge bridge docking technology. The navigation system for the airport lounge bridge docking the airplane hatch comprises a navigation main control module (1), a lounge bridge position detection module (2), an airplane position detection module (8), a first satellite positioning antenna (201), a second satellite positioning antenna (202) and a satellite positioning base station (203). The navigation main control module (1) is electrically connected to the lounge bridge position detection module (2) and the airplane position detection module (8); the lounge bridge position detection module (2) is electrically connected to the first satellite positioning antenna (201), the second satellite positioning antenna (202) and the satellite positioning base station (203). Compared with the prior art, the navigation system for the airport lounge bridge docking the airplane hatch is reliable and high in accuracy, and can perform artificial lounge bridge docking and can perform automatic lounge bridge docking. .

The invention discloses a target recognition method based on multi-source image joint shape analysis and multi-attribute fusion, and relates to a multi-source image target recognition method. The objective of the invention is to solve the problem of low accuracy of existing ship target identification. The method comprises: 1, obtaining a large number of suspected ship berthing wharf slices, and rotating the wharf slices to be horizontal according to the linear angle; 2, obtaining suspected ship coordinates, and extracting suspected ship slices corresponding to the coordinates; 3, classifying the suspected ship into a ship target and a non-ship target; 4, extracting optical slices from the targets classified into the ships, respectively detecting flight deck types, bow sharp corner positions, bow contour types and vertical launcher positions, extracting SAR slices, and detecting bridge positions; 5, performing multi-attribute fusion ship model identification; and 6, taking the class with the maximum voting result as a ship model identification result. The method is applied to the technical field of remote sensing image target detection and recognition.

This invention relates to novel bridged alpha hafnium transition metal metallocene catalyst compounds having two indenyl ligands substituted at the 4 positions with a C1 to C10 alkyl, wherein the 3 positions are hydrogen (assuming the bridge position is counted as the one position) and the bridging atom is carbon or silicon which is incorporated into a cyclic group comprising 3, 4, 5, or 6 silicon and/or carbon atoms that make up the cyclic ring.

The invention discloses a LiDAR point cloud data overwater bridge extraction method based on an irregular triangulated network. The method includes the steps: reading original LiDAR point cloud data of a target area; removing gross error noise; performing Delaunay triangulation for the LiDAR point cloud data to form the irregular triangulated network; calculating the narrow extent of all triangles; calculating an edge point elevation threshold value and separating a bridge edge point from a river edge point by taking the elevation threshold value as a dividing point to obtain a river edge point and bridge edge point elevation changing curve; further separating the river edge point and fitting a river bank edge curve; further separating the bridge edge point and fitting a bridge edge curve; solving bridge angle points, marking all obtained bridge angle points and extracting overwater bridges. By making full use of the laser point absorption characteristic of water bodies, the LiDAR point cloud data are triangulated to determine the water bodies, the bridge angle points are obtained by separating the river edge point from the bridge edge point, and one or a plurality of bridges positioned on the water bodies can be efficiently and accurately extracted.

The invention discloses a quick changing method and system of an expressway overline bridge. The quick changing method is suitable for dismantling, new construction and change of overbridges stretching over expressways and comprises the steps that S1, construction preparation is executed, wherein besides an existing roadbed nearby an original bridge, a construction site is arranged; S2, in the construction site, an integrated bridge upper-portion structure of one or more new bridges are formed through splicing; S3, a bridge lower-portion structure of each new bridge is arranged; S4, one or more integrated bridge upper-portion structures are moved to designed bridge positions and bridge setting is executed. The quick changing method has the advantages of being quick and having low traffic influence and the like and can be widely applied to the technical field of quick change and construction of overline bridges.

This electrical-wire cover is provided with the following: a corrugated-tube affixing part (29) and engagement ridges (49) integrally formed on a cover body (27) that surrounds an electrical wire; a bundling band that tightly secures first through third corrugated tubes; and bundling-member confinement parts (53) provided on the corrugated-tube affixing part (29). Each bundling-member confinement part (53) has first through third positioning parts (55, 57, 59) that have different bundling-band bridging positions.

A devices cage comprises a first wall having m parallel channels across a length of the first wall and a second wall having n parallel channels across a length of the second wall. In some embodiments, n is at least equal to m. Each parallel channel is equal to a diameter of a head of a drive mounting screw. The first wall comprises at least one bridge positioned across each m parallel channel and at least one clamp spring integrally coupled to a top of each m parallel channel. The second wall also comprises at least one bridge positioned across each n parallel channel. Each end of the m parallel channel extends at an inwards slant toward a center of the first wall. The inwards slant terminates at a circular area around configured in a dome shape with a flat top.

The invention belongs to the technical field of prestressed concrete continuous beam and continuous rigid frame bridge construction in bridge engineering, and particularly relates to a quick construction method for a No. 0 section of a prestressed concrete beam type bridge, which solves the problems of long working period and more high-altitude operating processes of the conventional construction method. The method comprises the following steps of: performing an assembly process of a No. 0 section bracket system and a template system at the bridge position and a manufacturing process of a steel bar framework in parallel, wherein the manufacturing process of the steel bar framework is finished on the ground; after the No. 0 section bracket system at the bridge position and a bottom die are assembled, transporting the formed steel bar framework to the bridge position, and placing the steel bar framework on the bottom die through a lifting device; assembling a side die, an inner die and an end die; pouring and curing concrete; and releasing the dies. The method has the advantages of short operating time, high professionalized degree and high labor efficiency.

A mobile bedside commode includes a wheeled frame structure, and a platform assembly attached to an uppermost portion of the frame structure. The platform assembly includes a toilet cutout and retaining arrangement for retaining a sanitary waste container in communication with the cutout. The platform assembly further includes a toilet seat which is provided with an opening that overlies the cutout. The toilet seat is pivotally mounted to the platform assembly and defines a support surface covering essentially the majority of the platform assembly. The platform assembly has a back end adapted to be positioned towards a user seated on a bed and a front end space from the seated user. A gripping arrangement is formed by the front end of the platform assembly itself. The frame structure is configured to be straddled by legs of the seated user when the back end of the platform assembly is positioned adjacent the bedside. The gripping arrangement enables the user to slidingly push and pull one's buttocks onto and off of the toilet seat and the ramp arrangement in its bridging position without any obstructions rising from the toilet seat and extending from the frame structure.