140 results about "Yardstick" patented technology

A system for positioning and drilling in cabinet, drawer, and shelf hardware components generally having a self-centering ruler and a jig template. The ruler has a zero mid-point and graduated measurement markings extending to each side of the zero mid-point toward opposite ends. A channel is disposed along a length of the ruler and has a generally T-shaped cross-section and is configured to slidingly receive a head of the securing bolt. The jig template has an adjustment slot configured to receive a stem of the securing bolt extending from an opening of the channel. A tightening knob securingly engages the stem of the securing bolt so as to secure the jig template between the tightening knob and the self-centering ruler.

The invention discloses a stable and adjustable drawing board for art design. The stable and adjustable drawing board comprises a platen and a drawing board body, wherein a pigment groove, a pen groove and a tool groove are formed in the front side of the top of the platen, the rectangular drawing board body is hinged to the rear side of the top of the platen through a hinge, an elastic clamp is installed at the upper end of the drawing board body, a sliding rail mechanism is installed on the left side of the drawing board body, a scale plate is installed on a sliding block of the sliding railmechanism, a telescopic rod is arranged on the rear side of the drawing board body, a conical support is arranged at the bottom of the platen, the upper end of a supporting rod is fixed to the middleof the bottom of the conical support and is in sleeved connection with a sleeve, and multiple supporting legs are circumferentially arranged on the outer side of the sleeve. The stable and adjustabledrawing board is stable in supporting and convenient to adjust in height and drawing board inclination angle, facilitates placement of pigments, pens and tools, facilitates scraping of excessive pigments on the pens, can achieve size comparison through the scale plte and is convenient to use and operate.

The invention discloses a special intelligent measuring instrument for animals and relates to size measurement tools. The special intelligent measuring instrument for the animals comprises a measuring barrel and a handle. The handle is connected to the middle of the measuring barrel. The two ends of the measuring barrel are respectively provided with a sleeve. The front ends of width ranging rods penetrate through springs and then are sleeved with the sleeves respectively. The tail end of each width ranging rod is provided with a contact head, wherein the contact head is matched with a sliding resistor which is correspondingly arranged in the measuring barrel. The contact heads and the sliding resistors are all connected into a circuit board and a battery in the measuring barrel and communicated with a width display screen on the outer surface of the measuring barrel. The two ends of the left width ranging rod and the right width ranging rod are provided with a left measuring ruler and a right measuring ruler respectively, and the two measuring rulers keep horizontal. The special intelligent measuring instrument for the animals can be used for measuring indexes of somatic features of the animals accurately and quickly, can conduct reading automatically, avoids the influence of restlessness of the animals on reading in the measuring process, and prevents staff from being injured.

The invention provides a method for measuring the slag thickness and headroom of a steel ladle. The method comprises the following steps of: coating a slag thickness scale by taking the ground of a platform in the rear of a furnace as a carrier and a 0 point as a starting point; coating a headroom scale by taking an upper surface of a sampling hole of the platform in the rear of the furnace and the vertical height of a steel ladle edge as a datum point; inserting the other end of a steel pipe coating with a mark into molten steel vertically, so that the mark of the steel pipe is parallel and level with the upper surface of the sampling hole; and pulling the steel pipe out of the molten steel, and aligning the inserting end of the steel pipe with the starting point of the scale so as to compare the slag thickness and headroom of the steel ladle. By the method, the slag thickness and headroom of the steel ladle can be measured simultaneously in one time without investments, so the method is simple, convenient to operate, time-saving, labor-saving and visual and clear; and the data information of the slag thickness and headroom of the steel ladle can be mastered quickly to adjust loading quantity in time, so the slag blocking success rate of a slag blocking mark of a converter is improved, the tapping slag amount of the converter is reduced, the pollution of slag to the molten steel is reduced, and the yield of smelted alloy is stabilized.

The invention discloses a vernier type comprehensive gauge for a hole. The vernier type comprehensive gauge comprises a gauge body with scale marks, a handle reference block, a vernier and an aperture measurement mechanism arranged on the gauge body, wherein an inner sliding cavity of which the two ends are open is formed in the handle reference block; the gauge body is adaptively arranged in the inner sliding cavity in a sliding penetration manner; the scale marks are axially arranged on the gauge body; a vernier embedding opening communicated with the inner sliding cavity is further formed in the circumferential surface of the handle reference block; the vernier is embedded into the vernier embedding opening; the aperture measurement mechanism comprises an aperture measurement main scale, a pair of radial verniers and a pair of internal diameter clamping legs; a radially through notch is formed between the two ends of the gauge body; the aperture measurement main scale is arranged in the notch in a penetration manner, exposed to the two sides of the notch, and perpendicular to the axis of the gauge body; the two radial verniers are connected to the aperture measurement main scale in a sliding manner, and are symmetrically distributed on the two sides of the axis of the gauge body. According to the vernier type comprehensive gauge, aperture and hole depth measurement accuracy can be improved, the vernier type comprehensive gauge is convenient to use, and working efficiency can be obviously improved.

The invention discloses a manufacturing method of colloid a code disk/yardstick, which uses a colloid sheet with the light transmittance of more than 90 percent and the high temperature resistance performance of up to 120 DEG C as the base material; only the colloid sheet with the thickness of less than 0.5nm and the material of PET or PC are preferable for making the code disk/yardstick; the method comprises the following steps: firstly, the surface of the sheet is plated with a layer of membrane with the material of chromium and aluminium and the thickness of about below 1Mum in an evaporation way; and a photoresist is coated on the membrane with the material of chromium and aluminium so as to form a layer of photoresist membrane with the thickness of about 1 to 3Mum; then the Fehling mother matrix of a grating pattern of the code disk/yardstick, which is drawn by a photoplotter, is covered on the photoresist membrane which is caused to sense light by the exposure irradiation of parallel lights; afterwards, the photoresist membrane which does not sense the light is washed off; steeping sluggish corrosion of about tens of seconds is carried out to the colloid sheet by corrosion liquid, and the part of the photoresist membrane which senses the light is washed off after the corrosion is finished, therefore, the engraving and making of the grating pattern of the code disk/yardstick is finished; and then the grating pattern is placed in an optical punch, and under automatic position punching alignment, the disk-shaped code disk or strip yardstick is formed to be used for an encoder or an optical scale.

An audio type signal is encoded. The signal is first divided into bands. For each band, a yardstick signal element is selected. The yardstick may be the signal element having the largest magnitude in the band, the second largest, closest to the median magnitude, or having some other selected magnitude. This magnitude is used for various purposes, including assigning bits to the different bands, and for establishing reconstruction levels within a band. The magnitude of non yardstick signal elements is also quantized. The encoded signal is also decoded. Apparatus for both encoding and decoding are also disclosed. The location of the yardstick element within its band may also be recorded and encoded, and used for efficiently allocating bits to non-yardstick signal elements. Split bands may be established, such that each split band includes a yardstick signal element and each full band includes a major and a minor yardstick signal element.

The invention discloses a round hole centering circle tool, which is used for centering round holes and describing circles on sections when round hole sections of different apertures are mechanically machined. The round hole centering circle tool mainly comprises a central shaft housing, a gear mandrel, a first rack arm, a second rack arm, a third rack arm, an angle dial, a staff circle describing arm, a fastening bolt, a fixing bolt, a handle and the like. The circle tool is suitable for centering inner holes of different apertures and describing the circles on the sections, in particular has more remarkable application effect on the inner holes of large apertures, has the characteristics of simple structure, simple and convenient mounting, simple operation method, accurate centering, convenient storage and convenient carrying, and can be used in relatively severer environments.

An adjustable ruler of the band saw machine includes: a ruler-guider plugs in the band saw machine over the bench and a mesh portion along the long axis on one side of the ruler-guider. There is a holder on the extending end of the ruler-guider. An active wheel pivots in the band saw machine and gears with the mesh portion of the ruler-guider. An axis plugs on the band saw machine. One end of the axis extends out of the band saw machine and another end combines with the active wheel. A knob with scales around the surface mounts on the extending end of the axis.

The invention discloses a linear long-distance absolute value position optical encoder, belongs to the technical field of displacement sensors and aims to overcome the limitation of a rotary encoder in short-distance transportation precise positioning detection. The linear long-distance absolute value position optical encoder comprises a yardstick, a reading head and a signal processing circuit. The reading head moves forth and back in a straight line in the length direction of the yardstick and scans the yardstick. The yardstick is provided with an address code grating and a clock period grating. According to the invention, the reading head and yardstick separated structure is adopted, the yardstick is installed and fixed to a suitable position, parallel to an operation rail, of the ground, and the yardstick is provided with the corresponding address code grating; in addition, the reading head scans the yardstick in movement, a signal processing circuit determines scanned address codes fixed on the yardstick in real time and determines the practical position of the reading head relative to the yardstick.

A plurality of novel depth of cut scales are eccentrically inscribed on faces of circular cutting blades. The depth of cut marks on the scales are line segments that are easily lined up with the sole of a hand held circular saw, with the table of a table saw, or with the workpiece surface of a radial arm saw or a sliding miter saw. The accuracy of setting the depth of cut is greatly improved by the novel construct of the scales, which provides depth of cut index marks that are separated from each other by a distance larger than the difference between the indicated depths. The circular cutting blades with the novel depth of cut scales can be used in any cutting tool utilizing circular cutting blades without any modifications and without any additional external tools or instruments. The scales provided by present invention resolve to as small a distance as 1/32 of an inch on English units scales or to 0.5 mm on SI units scales. The resolution of scales so constructed increases as the diameter of the blade increases which is beneficial for table and radial arm saws using significantly larger blades than hand held saws.

A measuring device for measuring an object includes a first measuring scale positioned along a first edge of the measuring device, a first slot formed through the measuring device, and a second measuring scale positioned alongside the first slot.

The invention provides a device for measuring a casting blank cut with a specified length, which is used for measuring the cut casting blank on a blank discharging and weighing roller way. The device comprises a scale with graduations, wherein the scale is arranged on the side wall of the blank discharging and weighing roller way and is flush with the blank discharging and weighing roller way. During work, the casting blank travels in a measurement range, one end of the casting blank is opposite to a certain point on the scale, the other end of the casting blank is opposite to the other graduation on the scale, and the graduation on the scale is read out at the time; the actual size of the cut casting blank can be obtained through calculation; the process is only required to be finished by an operation staff and the operation staff can be away from the device for a distance to avoid manual measurement of the operation staff; and therefore, the safety of the operation staff is protected, and the labor intensity of the operation staff is relieved.

The invention provides an online real-time measuring device for the outer diameter of a traction steel wire rope. The device comprises a traction steel wire rope pre-tightening guide structure, a vernier scale measuring structure and a door-shaped framework slide structure, wherein the traction steel wire rope pre-tightening guide structure comprises a pre-tightening wheel, a pre-tightening wheelbracket, a guide wheel, a guide wheel bracket and a spring bracket; the traction steel wire rope pre-tightening guide structure presses a to-be-measured steel wire rope between the pre-tightening wheel and the guide wheel through a compression spring, the spring bracket and the pre-tightening wheel bracket; the outer diameter of the steel wire rope is worn to cause changes of the diameter size topush the pre-tightening wheel to horizontally move in a radial direction; and the guide wheel can limit a steel wire rope from horizontal shake to reduce errors caused by shock. A pre-tightening boltand a slide slot can be conveniently mounted on a steel structure, close to the steel wire rope, of an elevator machine room; and when multiple elevators steel wire ropes are arranged in parallel, theonline real-time measuring device solves the problem of measuring the diameter of the steel wire rope inside in space, and realizes online real-time measurement on the outer diameter changes of the traction elevator steel wire ropes.

The invention relates to the field of fabric performances testing, in particular to a device for testing super-hydrophobic fabric slide angles. The device comprises a sample carrier board, a bottom board, rulers and a hand screw. The sample carrier board is used for holding a sample, one end of the sample carrier board is connected with the bottom board through a hinge, and the other end is a free end. A water tank with one end open is arranged on the sample carrier board. Three round holes are arranged in the bottom board, and a nut is arranged at each round hole. The hand screw drives the free end to rotate around the hinge by using the round holes and the nuts as a lifting mechanism. The two rulers are adhered on the bottom board and are used as a fixing unit and a measurement unit. Water drops are dropwise added on the test sample, the positions that the water drops start to slide or stop sliding are observed by raising or lowering of the sample carrier board, readings on the rulers are recorded, and the fabric slide angles are obtained by calculation. The device is simple in structure, easy to operate, low in cost and high in practicality.

The invention discloses an automatic distance adjustment binocular camera support suitable for a transformer substation and a distance adjustment method of the automatic distance adjustment binocularcamera support. The automatic distance adjustment binocular camera support comprises a support base. The two ends of the support base are symmetrically and fixedly provided with stepping motors correspondingly. Each stepping motor is sleeved with a stepping motor shell. A sliding rod is erected between the stepping motor shells. The sliding rod is sleeved with objective tables capable of sliding on the sliding rod. A camera base is fixedly arranged on the outer side face of each objective table. A camera is erected on each camera base. A lead screw is embedded among the objective tables and the sliding rod. Lead screw grooves are formed in the bottom faces of the objective tables and cooperate with a nut of the lead screw. The stepping motors can drive the lead screw to rotate, and then the lead screw drives the objective tables to slide on the sliding rod. The application range is wide, the distance between the two cameras can be automatically adjusted, and automatic updating and calculating are achieved; and a scaleplate is arranged, after the base line distance of the cameras is automatically adjusted by the motors, a new base line distance can be visually read, the adjustment precision is high, and the operation efficiency is improved.

The invention discloses a pair of multifunctional compasses. On the basis of a current compass structure (P), the pair of multifunctional compasses is characterized in that an arc scale plate (F) which separately shows angle indication scales (t) and length indication scales (u) is arranged on one compass leg (3); besides, the arc center of the arc scale plate (F) coincides with a central shaft (2) at the end parts of two compass legs (3); the distances from the central shaft (2) of the compasses (P) to two pin points (4) are identical; the intervals of the length indication scales (u) on the arc scale plate (F) are constrained by the identical distances; the intervals of the angle indication scales (t) are identical, and are determined according to the scales of a conventional protractor; and the intervals of the length indication scales (u) are determined according to an integrated cosine law, are unequal, and are constrained by the distances from the pair of pin points (4) to the central shaft (2). The technique is crucially characterized in that the cosine law that c<2> equals a<2> plus b<2> minus 2abcosC is integrated into a more practical equation, namely, c<2> equals 2b<2>(1 minus cosC), and design and use of the compasses are directed by the latter equation.