375 results about "Levelling" patented technology

A tile levelling device includes a base portion having an upper surface and an opposing lower surface, one or more recesses being formed in the upper surface. The tile levelling device also includes a stem frangibly connected to the base portion at or near a low point of said recess, the stem including a hole adapted to receive a wedge.

The specification and drawings present a new method, apparatus and software product for performance enhancement of a memory device (e.g., a memory card) using a pre-erase mechanism. The memory device can be, e.g., a memory card, a multimedia card or a secure digital card, etc. A new command or commands can be used to inform a memory device controller when the data in one particular sector, allocation unit or block can be deleted. Using that information the memory device controller then can be able to do some internal maintenance, e.g., by moving valid data from a fragmented erase block to another so that the fragmented erase block can be cleared and erased for future use as well as performing effective wear levelling maintenance and write performance optimization.

The invention provides an auto leveling and angle regulating tripod, comprising frame body, which comprises base and three extensible horses connected with the base, where the inside of the base is equipped iwht battery storehouse and control circuit, and also comprising an auto leveling and angle regulating platform on the frame body, where the platform comprises battery supply circuit, casing, inner ring, outer ring, two horizontal sensors, two position detectors, two DC motors and processor and the peripheral circuit thereof and it is a miniaturized shooti8ng tripod auto regulating platform with functions of auto leveling and electrically regulating angle. Only needing to press a button, the invention can automatically level camera installation platform.

The invention relates to a single counterweight type automatic levelling spreader and a using method thereof, belonging to the technique of loading-unloading winching device. The single counterweight type automatic levelling spreader comprises a bearing spreader, an automatic levelling device, an initial bottom surface distance measurer, a target bottom surface distance measurer and a computer, wherein the automatic levelling device is mounted on the bearing spreader and is provided with counterweight blocks; the initial bottom surface distance measurer and the target bottom surface distance measurer are respectively located below an initial bearing bracket and a target bearing bracket; the computer communicates with both the bottom distance measurers, calculates the leveling inclination angle of the loading butt joint surface according to information measured by the initial bottom surface distance measurer and the target bottom surface distance measurer and based on the input structural size of the loading butt joint surface, calculates control signals, transmits the control signals to the automatic levelling device, controls the position of the counterweight block in the automatic levelling device and keeps the initial bearing bracket and horizontal target bearing bracket of the loading butt joint in the horizontal state so as to realize precise and easily damaged hoisting. The invention has the advantages of high precision, fast speed, safety and reliability.

The invention relates to an electric automatic levelling brace for realizing multipoint electric automatic levelling, and aims to provide an electric automatic levelling brace with large lifting weight, rapid and reliable touchdown, good repeatability of levelling precision, high precision, safety, convenience, convenient maintenance and simple electric connection. The electric automatic levelling brace comprises a levelling bearing disc connected with a levelling brace cylinder body and a direct current servo motor with an electric control unit. The top of the levelling brace cylinder body is provided with a transmission chain which is connected with an output shaft of a speed reducer and a leading screw pair for rotary motion; the leading screw pair drives a levelling telescopic cylinder body manufactured with a screw and the levelling bearing disc fixedly connected with the leading screw pair together to do linear lifting motion; a microswitch for feeding back the lifting position to an external control system is arranged on the cylinder wall of the levelling brace cylinder body; a small displacement triggering shaft records the moving position, triggers the microswitch at a triggering point and transfers an electrical signal of the lifting position of the levelling brace to the outside; and the small displacement triggering shaft is connected external control equipment through the microswitch and forms a closed loop levelling system with the servo motor connected with the speed reducer .

A levelling spacer device (10) for laying slab products (P) for cladding surfaces, which device (10) comprises a base (20), positionable on a backside of a laying surface of at least two slab products (P) that are adjacent and flanked with respect to a flanking direction (A), at least a separator element (30) emerging from the base (20), able to contact the facing flanks of the two slab products (P), and mobile between a storage position in which it lies substantially parallel to the base (20) and a work position in which it emerges substantially perpendicular to the base (20); the peculiarity of the device consisting in the fact of comprising blocking means (250, 311) of the separator element (30) in the work position.

The invention discloses an organosilicon paint leveling agent with a general formula of a structure as shown in a formula (I) and a preparation method thereof. The method adopts two steps for reaction: (1) preparing a methyl part containing hydrogenous silicone oil by a mixed siloxane balancing method; and (2) preparing organic group modified polymethyl silica to obtain the organosilicon paint leveling agent. The organosilicon paint leveling agent has the performances of controlling surface flowing, improving leveling, increasing the lustrousness of a coating film, enhancing smoothness and resisting scratch.

A support for apparatus in general and, in particular, for optical or photographic apparatus and the like. The support comprises a pillar arranged to receive the apparatus at a first end and to be housed with its stem in a seat extending through a spider of a tripod. The support also comprises, at the first end, an orientable platform for the levelling of the apparatus independently of the positioning of the tripod, and the pillar is structurally independent of the spider and can be inserted removably in the seat.

The invention provides a horizontal detecting device, levelling device and levelling method of a workpiece in an electrochemical system. The horizontal detecting device comprises a macrometric/micrometric displacement platform, a displacement table, a probe electrode and an electrochemical workstation. The displacement table is fixedly arranged on an X-Y plane which is determined by the macrometric/micrometric displacement platform and can make displacement on the X-Y plane, and an electrolytic tank and the displacement table are relatively static. The probe electrode is fixedly arranged in a Z direction which is determined by the macrometric/micrometric displacement platform, and the detection end of the probe electrode is soaked into an electrolyte in the electrolytic tank in a vertically downward mode and is away from the workpiece in the electrolytic tank by a preset distance. The working electrode of the electrochemical workstation is connected to the probe electrode, the auxiliary electrode and the reference electrode of the electrochemical workstation are both connected to be soaked into the electrolyte in the electrolytic tank, the potential of the working electrode is controlled to be constant, current signals of the working electrode are changed along with the movement of the displacement table, the current signals are detected, so that a current signal curve is obtained, and the tilting degree of the workpiece in the electrolytic tank can be known through the fluctuation amplitude of the current signal curve. By means of the horizontal detecting device, levelling device and levelling method of the workpiece in the electrochemical system, the horizontal detection precision of the workpiece in the electrolyte can be improved.

The levelling rod (1) for a level determining apparatus (2) has position indications therealong along expressed by barcode symbols (11, 12). At least some of said barcode symbols are colour barcode symbols, the colour serving to encode said position indications. The barcode symbols can be organized in first and second blocks (12, 11) of barcode symbols, each providing a position indication, wherein the length (Ls) occupied along the rod (1) by a first block (12) is smaller than the length (Lb) occupied along the rod by a second block (11), the first blocks thereby providing a finer position indication than the second blocks. The first blocks (12) of barcode symbols can be formed of monochrome and colour bar code symbols, e.g. just one colour barcode symbol and at least one monochrome barcode symbol, while the second blocks (11) can be formed purely of colour barcode symbols. The invention also relates to a level determining apparatus specifically adapted for the above rod, and to a method of using that rod.

Elevators are maintained in level condition by four fixed ropes or cables passing diagonally across an elevator in angularly related opposite directions. The ropes extend from opposite corners of the elevator to fixed upper and lower ends. Moving the elevator causes equal and opposite changes in lengths of the portions of the ropes extending upward and downward from the pulleys on the elevator, keeping the elevator level.

A levelling group of an aerial work platform includes: a support base for supporting a containing cage of an aerial work platform, a support frame hinged to the support base so as to be able to oscillate with respect to an oscillation axis, at least a pair of ground rest elements hinged independently to the support frame, with respect to respective articulation axes parallel to one another and substantially perpendicular to the oscillation axis, such as to be able to independently vary a height thereof with respect to the support base.

The invention relates to surveying and mapping class, in particular to a method for surveying river-crossing leveling during the shield run-through of rivers in tunnel engineering, which comprises the steps of: starting from various elevation control points of two banks of a river respectively, adopting a second-order leveling surveying specification, and inductively surveying elevations to the banks of the river respectively first; then taking second-order leveling points inductively surveyed on the two banks of the river as transfer station surveying points; and finally taking triangular elevation surveying as the basis, utilizing a higher electronic holographic device, staring from one transfer station surveying point on one side of the river to place a sighting target as 'backsight', placing a sighting target as 'foresight' at one transfer station surveying point on the other side of the river, and transferring the elevation of the 'backsight' sighting target to the 'foresight' sighting target by surveying through the station surveying points and taking the station surveying points as the transition. The method is simple, convenient and efficient, has simple used equipment and high surveying accuracy, is particularly suitable for the construction of the tunnel shield run-through of the rivers, and can effectively meet the requirement of control precision of run-through surveying of shield advance construction.

A wet smoothing liquid for the surface of steel plate contains composite antirust agent composed of organic acid and organic amine, the corrosion inhibitor and washing assistant composed of surfactant and water. Its advantages are excellent cleaning and antirusting power, and no pollution.

The invention discloses a device for feeding and levelling a prefabricated wallboard. The device comprises a base, wherein a mounting plate is arranged at the upper part of the base; a sliding seat isglidingly mounted on the top part of the mounting plate; a storing groove in which a die is clamped is formed in the top part of the sliding seat; the die and the top part of the sliding seat are onthe same horizontal axis; a moving groove in which a rotating plate is rotatably mounted is formed in the top part of the mounting plate; a first fixing block is fixedly mounted on the top part of therotating plate; one end of a connecting rod is rotatably mounted on the first fixing block, and a second fixing block is rotatably connected to the other end of the connecting rod; the top part of the second fixing block is welded to the bottom part of the sliding seat; the second fixing block is positioned at one side of the rotating plate; and a mounting groove is formed in the inner wall of the bottom part of the moving groove. With the adoption of the device, slurry can be conveniently automatically leveled, so that both time and power can be saved, and the working efficiency is improved;and meanwhile, the damping function is provided, so that the vibration in working can be absorbed, and the noise is reduced.

The invention discloses an automatic leveling plastering machine, comprising a track, a rack, a telescopic work arm, a swaying driving device, a swaying gearing device, a swaying brake, an automatic leveling plastering device, a walking driving device, a plastering datum plate, a delivery pump, a delivery soft pipe and a control system, wherein, the telescopic work arm is connected on the upper part of the rack through being fixed with a rotating shaft and can swing with the rotating shaft, and the swaying angle alpha thereof is more than 180 degrees; the automatic leveling plastering device is hinged at the end of the telescopic work arm and comprises a mounting plate, datum piston shoes, a head, an angle measuring sensor, a head displacement sensor, a plastering device angle-adjusting unit and a head displacement adjusting unit. The automatic leveling plastering machine has the functions of automatically and timely monitoring plastering planeness and adjusting levelling, and has the advantages of high operation precision, reliable performance and simple operation, thereby being widely applied to the plastering of the inside and outside walls of buildings and the brushing of decorative paints.

The invention provides a method for levelling and mounting a base of mechanical equipment. The method comprises the following steps of: on two sides of each foundation bolt, connecting sizing blocks with concrete foundations by using more than three bolts; levelling all the sizing blocks to make the levelness of each sizing block within 0.5mm/1,000mm and the levelness among all the sizing blocks within 1mm/1,000mm; carrying out injection molding around each sizing block by using a fluid spouting material to form a plurality of first casting bodies which expose upper surfaces of the corresponding sizing blocks and surround and support the corresponding sizing blocks; placing a main base plate on the sizing blocks; carrying out secondary casting around the main base plate by using the fluid spouting material to form a second casting body which exposes the upper surface of the main base plate and surrounds and supports the main base plate; fixing the base of the mechanical equipment placed on the second casting body with the concrete foundations by using a plurality of foundation bolts. The method can be used for levelling and mounting the mechanical equipment such as an autogenous mill, a ball mill, a draught fan, a combustion gas turbine, a turbine and the like.