507 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.

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.

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 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 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.

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.

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 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.

The invention discloses a teaching compass, which comprises a ruler; wherein, one end of the ruler is provided with a turntable; a fixed device used for bonding with a writing plate is arranged on the turntable; the ruler is connected with the turntable by a rotating shaft and can carry out circular motion by taking the rotating shaft center as a circular point; a slide groove and a slide block are arranged on the ruler; the slide block is arranged in the slide of the groove and holes are arranged on the slide block for putting teaching pens. Compared with the traditional compass, the novel teaching compass has a completely different design proposal which has simple structure and a plurality of applications.