510 results about "Straightedge" patented technology

A laser cladding process of an exterior wear-resisting anti-corrosive alloy coating of a slide chair of a railway switch comprises processes as follows: firstly, the surface of the slide chair is pre-heated, which means the surface of the slide chair is degreased and de-rusted under room temperature; and the surface is cleaned up by alcohol; then alloy powder is prefabricated, which means iron-base, nickel-base or cobalt base alloy powders that are ready for cladding are preplaced on the processed surface of the slide chair, and a scraping straightedge provided with a rail is used for adjusting the pretreated metal powder so that the alloy powder can be distributed on the surface of the slide chair evenly and has proper thickness to meet the thick requirement of the coating after cladding; and finally, the slide chair is hardened by the laser cladding; the laser of CO2 gas is adopted; a numerical control machine is used as a working table and the surface of the slide chair is hardened by the laser cladding. The laser cladding process has the characteristics of no pollution, high production rate, low energy consumption, the little finishing allowance of cladding coating and low combined cost.

This Measuring and Drafting Tool relates to a new and useful type of measuring and drafting tool that may be used to accomplish a plurality of functions using a singular tool. These functions include application as a ruler, straight edge, T-square, square or squaring tool, center gage, an edge transcribing and duplicating tool, and as a tool for striking circles and circle arcs. Some modified embodiments of the Measuring and Drafting Tool are also capable of angle measurement and protractor functions, and may also include one or more bubble levels incorporated into the ruler segments, thereby allowing the user to check if a horizontal surface is level.

An apparatus and method for a hinged measuring and marking device is disclosed herein. The device utilizes a first member, containing a flat surface with a straightedge for marking or measuring, coupled to a second member, also containing a flat surface with a straightedge for measuring or marking wherein the first member is coupled to the second member in a direction perpendicular to the straightedge of the first member. The straightedges of the first and second members are coplanar for marking an approximately contiguous line on a single plane or on two intersecting planes. The first member and the second member can be rotated between 0 and 180 degrees with respect to each other to accommodate marking a line on the two intersecting planes.

An apparatus and method for a hinged measuring and marking device is disclosed herein. The device utilizes a first member, containing a flat surface with a straightedge for marking or measuring, coupled to a second member, also containing a flat surface with a straightedge for measuring or marking wherein the first member is coupled to the second member in a direction perpendicular to the straightedge of the first member. The straightedges of the first and second members are coplanar for marking an approximately contiguous line on a single plane or on two intersecting planes. The first member and the second member can be rotated between 0 and 180 degrees with respect to each other to accommodate marking a line on the two intersecting planes.

A multi-task protractor apparatus having the capabilities of a rotating protractor, adjustable triangle, ruler, miniature leveler, framing square and roof angle finder is disclosed. The multi-task protractor accurately measures angles and slopes and provides two straight edges for constructing angles and triangles.

The invention belongs to the field of airplane strength test technology research, and particularly relates to a bent plate comprehensive test device which comprises a test piece assembly, a triangularassembly array, an axial and bending loading assembly and a shearing loading assembly. The triangular assembly array comprises triangular assemblies, and floor beam loading triangular assemblies which are used for applying an annular load, a floor beam stretching load, a floor beam compressing load and a floor beam bending load to a test piece; the axial and bending loading assembly comprises a base platform, a fixed end assembly and a movable end assembly and is used for applying an end load to the shearing loading assembly; the shearing loading assembly comprises a bearing frame, a straightedge loading frame and a pull rod assembly and is used for applying shearing force in opposite directions to the two straight edges of the test piece. According to the bent plate comprehensive test device, loads such as stretching / compressing, shearing, air tightness, bending, end shearing and stretching / compressing and bending of the floor beam can be independently applied, combined loading of any load can be conducted, and meanwhile application of all the loads does not interfere with each other.

The invention discloses a straight edge grinding machine used for flat glass processing production. The straight edge grinding machine used for flat glass processing production comprises a sliding base, a support, an installing cross beam, an upper grinding driving mechanism, a side grinding driving mechanism, a slide rail groove, a sliding block, a lead screw, a right rotating base, a left rotating base, a fifth electric machine, a sliding plate, a supporting stand column, a processing platform, a vacuum suction nozzle, a vacuum generator, a controller and limiting switches. The straight edgegrinding machine used for flat glass processing production is novel in structure, scientific in design and reasonable and humanized in design of the whole straight edge grinding machine; the straightedge grinding machine used for flat glass processing production is divided into an upper grinding module and a side grinding module; the two limiting switches are arranged and effectively prevent idling of the device, electric energy is saved, the intelligent level is higher; a lead screw driving manner is adopted for moving mechanisms of the whole device, moving is more gentle and stable, the edge grinding quality is effectively improved, and the product qualification rate is increased; and meanwhile, the vacuum suction nozzle and the vacuum generator are adopted, processing of plate glass in different widths and processing of plate glass in different thicknesses can be achieved, and practicability is high.

The invention discloses a drafting ruler that includes a straight ruler, a parallel ruler and a protractor, and the straight ruler includes a groove with a scale at the middle and an arc fixing groove using an end of the groove as the center. The protractor includes a semicircular protrusion corresponding to the fixing groove at the center of said straight ruler for movably connecting the straight ruler, such that the protractor can work with the groove of the straight ruler to draw an oblique line with an inclined angle, and can quickly draw several parallel lines or perpendicular lines starting from the mid-point to the length of the line by using the movably and perpendicularly connected straight ruler and parallel ruler, so that users can draw different figures or tables quickly and conveniently.

The invention provides a vision device of solar cell back silver printing equipment, which is used for positioning and detection in a solar cell back sliver printing process and relates to the technical field of solar cell back silver printing equipment. In the device, a light source capable of providing light for a camera provided with a lens is arranged, a detected object is placed in right front of the lens, and the camera is connected with an acquisition card arranged in a computer; a camera positioning straightedge is arranged between a backlight source and the camera; and the computer reads the image information of the camera, and processing software performs defect detection and positioning or screen frame calibration. The device of the invention can detect if the cell is cracked before and after printing automatically, improve yield and rate of finished products, determine the positions of the cell before printing and a silk screen, keep the relative positions of the cell and the silk screen consistent all the time, improve the reprinting precision and the like, effectively improve the printing quality, the rate of finished products and the production efficient of a solar cell production line.

The invention is a masonry tool that is a framing square with a retractable straightedge, where the framing square can be fitted to a level. The major components of the invention are a foldable flat straightedge, a mounting bar and housing which seats a notched disk that rotates on an axial shaft that is joined to the straightedge, a finger activated switch that moves a spring loaded slideable pin that clicks into a notch on the disk corresponding to an angle, and fastening components and elements for longitudinally affixing the mounting bar and housing to the end of the level. The retractable straightedge, when unlocked, can be rotated from a retracted position to a reversibly locked right angle position, and vice versa.

The present invention is a sliding ruler square that provides an adjustable and extendible straightedge element permitting a user to conveniently scribe lengthy cut lines at pre-selected angles across a work piece typically utilized in the construction industry without the necessity as exhibited by the prior art to reposition the tool. The inventions comprises a right triangularly shaped base with a fence on one base edge, a sliding straightedge on the other base edge and markings along the straightedge and the hypotenuse and other edges of the base to present a variety of ways to measure and mark. The tool combines a number of measurement and scribing functions typically requiring several tools.

The invention relates to the field of construction plaster work and particularly relates to a screeding technology and screeding ruler for a plaster work. The screeding technology for the plaster work comprises steps of determining the thickness of plastering, building temporary supports, regulating flatness searching plates and screeding wall surfaces. According to the screeding technology and the screeding ruler for the plaster work, when the plastering is conducted, a plastering pie is not required for arrangement in advance; through the arrangement of a plurality of support devices, namely straightedge main bodies, the end surfaces of the flatness searching plates on the straightedge main bodies are aligned at a marked line arranged in advance; through conducting plastering between adjacent flatness searching plates by a plastering plate, plastered surfaces can be formed and the wall plastering can be finished; through adopting the screeding technology and the screeding ruler, the plastering process is prevented from the influence of human factors; through the flatness searching plates, the thicknesses of a plurality of plastering surfaces are limited to be the same; the time of wall surface screeding is reduced and the quality is improved; the errors in the flatness of wall surfaces after the plastering are greatly lowered.

In an envelope-filling station for mail processing systems having an envelope-feeding arrangement for single, open envelopes, an intermediate envelope-conveying arrangement extending at an angle thereto in the direction of an angle stop arrangement provided for the purpose of aligning the envelope, and an envelope-advancing arrangement from which the envelopes are accepted from the angle stop arrangement, a simplification of the design, and effort needed to control the component parts is achieved when the angle stop arrangement, with the exception of a stopping straightedge that is to be provided to achieve extremely precise alignment of an envelope that is supplied at an angle, contains as a further part of the angle stop arrangement a conveying nip between the upper strand of an intermittently driven conveying belt of the envelope-advancing arrangement and a pressure-exerting roller that is pre-tensioned near the beginning of the upper strand of this conveying belt. The envelope-advancing arrangement has coupling means following the pressure-exerting roller that interact with the intermittently driven upper strand of the conveying belt of this envelope-advancing arrangement, in particular a roller bar that can be moved up and down, said means conveying an aligned envelope to a position in front of the feeding station, independent of the function of the pressure-exerting roller, and transporting the filled envelope out of the inserting station.

The invention relates to a multi-function math ruler, which is the structure technology of math ruler. 0-100 equal-division calibration lines are set on the main straight ruler. A protractor is fixed on the front end of main straight ruler. The protractor and the main straight ruler are in the same plane. The protractor has circle center and 0degree-180degree calibration lines with equal angles. The circle center is coincided with the zero position of main straight ruler. A straight ruler is hinged at the zero position of main straight ruler. Calibration lines, which are the same with equal-division calibration lines of main straight ruler, are set on the straight ruler. A straight sliding groove is opened on the main straight ruler. The sliding groove is parallel with the main straight ruler in the length direction. Another straight ruler is connected on the sliding groove by pin. On the straight line calibration lines, which are the same with calibration lines of main straight ruler, are set. Except for straight ruler, triangle ruler and protractor, the invention can measure angle, draw lines with arbitrary angle, parallel lines and vertical lines so on, directly read triangle function and directly solve relating problem of Pythagorean Theorem.

The invention relates to a pipe fixed-length cutting-off beveling machine, and relates to the technical field of pipe machining equipment. The problem that when an existing beveling machine conducts pipe beveling, a pipe needs to be cut off through a sawing machine or a cutting machine, the length needs to be manually determined through a ruler during cutting off, then, the pipe is clamped to a beveling machine for beveling, clamping is conducted repeatedly, and thus, the pipe beveling efficiency is low is solved. The pipe fixed-length cutting-off beveling machine comprises a base, a cutter advancing and retreating mechanism and fixing box bodies, and the fixing box bodies are provided with through cavities. The pipe fixed-length cutting-off beveling machine further comprises clamping fixing mechanisms and a control device. Each clamping fixing mechanism comprises clamping fixing jaws, sliding rods, driving slide blocks, a base plate, a cover ring, engagement columns, a worm and a fourth driving motor. The pipe fixed-length cutting-off beveling machine has the effects that automatic fixed-size clamping, fixed-size feeding and fixed-length cutting off of a pipe are achieved, cuttingoff and two-surface beveling are completed at a time after cutting off, one-time machining forming is achieved, repeated clamping and manual size fixing are not needed, and the pipe machining efficiency is improved.

A simplified light weight squaring tool used by pipe fitters in conjunction with templates or pipe fitters tables for laying out pipe intersect angles and geometry as required for cutting and joining pipe of various sizes at various angles. A rugged tool intended primarily for on sight use, comprises a self centering straight edge arranged for guiding and scribing of lines on flat surfaces, curved surfaces or across the diameter of a pipe face, an integral adjustable protractor level, allowing for fast and accurate perpendicular and angular orientation of the straight edge when used in the vertical plane and a self aligning extension arranged for expanding the capacity of the squaring tool and transcribing angular lines from the face of pipe sections onto the circumference or outside diameter of pipe parallel to longitudinal centerline of the pipe as required for layout

The invention relates to a multifunctional drawing tool which comprises a ruler 1 and a ruler 2. One end of the ruler 1 is connected with one end of the ruler 2 by a magnetic central shaft 7; a slide block 4 is arranged on the ruler 1; one side of the slide block 4 is provided with a taper hole 12 used for holding a chalk; a slide block 5 is arranged on the ruler 2; one side of the slide block 5 is provided with a taper hole 11 used for holding a chalk; the magnetic central shaft 7 is provided with a dial 3; and the lowest part of the magnetic central shaft 7 is provided with a sucking disc 8. When the multifunctional drawing tool is used, a chalk is firstly cut into a taper shape or a long-flat shape by the end of the ruler and put into the taper hole of the slide block to be clamped fixedly, then the sucking disc is fixedly adsorbed on a blackboard for fixation, and the drawing tool can draw straight lines in any angles, circular arcs in any angle, radius, ellipses, concentric circles, and the like and has the advantages of convenience and accuracy.

A laser straight ruler having a main body and a beam scanner installed on the main body. A laser beam is scanned to form a beam spot on an object. A position sensing device receives a laser beam reflected by the object and senses a position of the beam spot. A signal processing unit drives the beam scanner and processes a signal of the position sensing device. A display displays a change in a distance between the main body and the object and data including a measured distance value from the signal processing unit. An input portion inputs data including adjustment of a scanning width of the beam spot and sets start and end positions of the measured distance. A straight distance of the object is measured or the beam spot having a scanning width corresponding to a measured distance or a predetermined distance is projected to the object.

Novel measuring and cutting apparatus and methods are disclosed. In one embodiment, an apparatus includes a base member, an elongated member having an attachment end coupled to the base member and at least one straight edge adapted to extend over a workpiece, and a measuring arm. The measuring arm includes a first leg slideably coupled at right angles to the elongated member, and a second leg extending from the first leg and adapted to extend over the workpiece, the measuring arm defining a distance between the straight edge and the second leg. The apparatus allows accurate, repeated measurement when the straightedge is angled, and also allows access to the entire length of the straightedge for drawing or cutting.

The invention relates to multifunctional scissors which comprise a left blade, a right blade, a right handle connected with the left blade, and a left handle connected with the right blade, wherein the left blade and the right blade are sleeved on a bolt; the bolt is adjusted manually and provided with a protractor; the '0' point of the protractor overlaps with the center point of the bolt; a compass nib is arranged at the top end of the left blade; ruler scales are marked on the back and the edge of the right blade; and an electronic meter is arranged on the right handle, and an electronic thermometer is arranged on the left handle. The multifunctional scissors are provided by the invention, and convenient to use, can cut an object with a fixed size, can be used for measuring an angle, drawing a circle and drawing a straight line, and also can display time and temperature.

A form for concrete strike-off includes a pan adapted to float on a plastic concrete surface, a rigid straightedge, and a support. The straightedge is coupled on one end to the pan and the support is coupled to the opposing end of the straightedge with the straightedge thereby defining a reference elevation for concrete strike-off operations.

The invention discloses a sliding miter square and relates to a drawing tool of student stationery, which brings convenience for students to draw height lines, vertical lines and parallel lines. The sliding miter square comprises two straight poles with sliding grooves and a sliding rails which are matched with each other; the sliding rail on one straight pole is embedded in the sliding groove of the other straight pole and is in matching connection with the sliding groove of the other straight pole, and moreover, the sliding rail can move in the sliding groove. In sliding process, the two straight poles are vertical to each other all the time, and the two straight poles are provided with scale lines and marks for showing length. When in use, one straight pole is fixed relatively, and the other straight pole is moved to a specific position, and thus, height lines, vertical lines and parallel lines can be drawn conveniently. Used for drawing, the sliding miter square is more convenient than a set square and a straight scale.

A laser straight ruler having a main body and a beam scanner installed on the main body. A laser beam is scanned to form a beam spot on an object. A position sensing device receives a laser beam reflected by the object and senses a position of the beam spot. A signal processing unit drives the beam scanner and processes a signal of the position sensing device. A display displays a change in a distance between the main body and the object and data including a measured distance value from the signal processing unit. An input portion inputs data including adjustment of a scanning width of the beam spot and sets start and end positions of the measured distance. A straight distance of the object is measured or the beam spot having a scanning width corresponding to a measured distance or a predetermined distance is projected to the object.

A form for concrete strike-off has a rigid straightedge assembly and a support coupled to one end of the straightedge assembly. The straightedge assembly includes a grate coupled to the bottom edge of a support bar. The grate extends away from the support bar with a top surface of the grate defining a plane on at least one side of the support bar. In use, a portion of the straightedge assembly defines a reference elevation for concrete strike-off operations.

The invention discloses a multifunction teaching ruler, which is mainly used for teacher picturing on blackboard. The structure of the rule comprises a mother ruler with length graduation and a concave section; a chalk socket is arranged on one end of the mother ruler; a sub-ruler marked with length graduation is articulated with the other end of the mother ruler; a compasses needle is arranged on an end of the sub-ruler; a strut is articulated with a sub-ruler body; the other end of the strut is inserted in the socket of the mother ruler; a plurality of stop pawls are arranged on the bottom of the socket; each stop pawl corresponds to a triangle angle and a circle radius; a tension spring is arranged between the body of the sub-ruler and the mother ruler; a stable triangle structure is formed between the sub-ruler and the mother ruler by the tensile force of the tension spring. The invention has multifunction of painting straight line, triangles with random angle and side length and circle as well as circular arc with random radius directly. The multifunction teaching ruler has the advantages of high speed and standard picturing and convenient carrying, and alters the inconvenience that teachers carry a plurality of picturing teaching aids.

The invention discloses a teaching drawing tool, and particularly relates to a curve drawing and measuring tool. By adoption of the tool, parabolas, hyperbolic curves, ellipses, circles and other curves can be conveniently and fast drawn, the length of the curves can be measured, a vacancy in the field of teaching tools is filled, and the problem that junior-senior high school students and teachers have no tools to draw the curves is solved. According to the technical scheme, based on the basic principle of a five-point parabola drawing method, a strip-shaped ultrathin stainless steel sheet is made into an elastic stainless steel dividing ruler, and the stainless steel dividing ruler is smoothly bent into a required parabola shape, and then the pattern of the parabola is drawn along the outer side of the stainless steel dividing ruler. The technical scheme can also be used for drawing the hyperbolic curves, ellipses, circles and other curves. Since the two sides of the stainless steel dividing ruler have scales, the length of a drawn curve can be directly read. The tool further has the functions of a traditional protractor and straightedge, and can be used for drawing any geometric figures. The drawing tool is absent in current domestic and overseas markets, and is wide in market prospect.

A measuring and leveling device constructed with bubble vials for leveling which are movable to the precise point of application, with the measuring scale situated on a surface so constructed as to allow the scale to be located directly against and parallel to the surface to be measured. The device serves for both measuring and leveling tasks in one tool, and is constructed including a body portion provided with a ruler for measuring distances between points, in which the measuring scale is marked on a surface which tapers to a flat edge as in a conventional ruler. The body portion has two parallel tracks along its longitudinal axis, and two clamp situated on the body of the leveling device, each of which is held in place by tabs situated on the underside of the clamps and insertable into the parallel tracks, each clamp including a bubble vial mounting portion into which a bubble vial is fixedly mounted. The present invention therefor enables two or more points to be easily and accurately marked on a surface at a set horizontal or vertical distance one from the other; or a level horizontal or vertical line to be easily and accuretely marked or cut on a surface. The sliding nature of the clamps on which the bubble vials are mounted enables the bubble vials to be positioned at either end of the surface to be plumbed, thus serving as both measuring and plumbing points, allowing for simultaneous measurement and alignment. The measuring and leveling device is ideal for use in many applications where leveling and marking are required, such as hanging framed works of art or pictures on walls, or measuring a distance between two points, such as between hanging holes on the back of a cabinet, enabling these two points to be marked on a wall, such that the points accurately leveled. The measuring and leveling device can also be used in any other application, such as in doing construction or renovation, marking stud placements in plasterboard walls and the like.

A configuration for the transport and simultaneous alignment of sheets has a straightedge, at least one conveyor belt disposed slightly at an angle to the straightedge in the direction of movement of the sheets, and an air suction device. The conveyor belt exhibits open transverse slots on its upper side carrying the sheets. The upper half of the conveyor belt runs in a guide channel that is open in an upward direction, and the transverse slots are connected to the air suction device in such a way as to permit the flow to take place. A controller is provided to control the supply of air in the area of the transverse slots.

A universal design straightedge comprising a body having a top surface and a perimeter bounded by at least one edge, the top surface comprising evenly spaced apart linear rulings perpendicularly disposed to and extending from the edge, some of the linear rulings corresponding to a unit of measure, and some of said linear rulings corresponding to a fraction of the unit of measure, and numerical indicia associated with substantially all of the rulings, substantially all of the numerical indicia substantially centered about a centerline of respective linear rulings, the numerical indicia oriented in standard upright reading position with respect to the edge where the straightedge is arranged with the edge in an underlying relation with respect to the numerical indicia. The numerical indicia associated with the linear rulings corresponding to a fraction of the unit of measure may include a composite of full and fractional numerical indicia. The straightedge may also include a handle projecting generally perpendicularly from the top surface, the handle having a height substantially greater than a thickness of the body.