Abstract: The invention relates to a method for aligning at least two image recording elements of two camera modules of a stereo camera system, in particular with respect to their roll angle relative to one another, as well as to a stereo camera system whose camera modules or image recording elements are aligned in accordance with such method.

Abstract: There has been no ruler having an arch member on an upper surface as in related art, which is suitable for mass production to reduce the price and can be formed by using different materials for a ruler body and the arch member, and in which there is no backlash and edges for operations of the ruler body closely contact a surface of a target object so as not to move.

Abstract: Some embodiments of the present invention provide a plurality of approximately evenly spaced graduation marks disposed along the length of an art implement handle. Some embodiments may enable an artist to more accurately compare the relative sizes of different portions of his subjects so that he may depict them to scale, and or create a to-scale representation of an object.

Abstract: A sprinkler drop ruler is provided for measuring the sprinkler drop from a roughed-in outlet. The sprinkler drop ruler includes a rigid frame having an opening, a handle connected to the rigid frame and in fixed relation to the rigid frame, and a ruler with an end shaped to seat in the opening and configured to move inside or along a side of the handle in order to measure a sprinkler drop. The sprinklerfitter may thus use the sprinkler drop ruler in order to measure the sprinkler drop. In this way, the sprinklerfitter does not need to climb a ladder to measure the sprinkler drop.

Abstract: A ruler tool is provided comprising a main guide frame 2 having guide portions 2a and 2b, a first guide frame 3 having a guide portion 3a to guide a tool in cooperation with the guide portion, a second guide portion frame 4 having a guide portion 4a to guide a tool in cooperation with the guide portion 2a, and a pair of fences each securing each of the guide frames with a predetermined interval being set among the guide frames so as to hold the tools, in a sandwiched manner, and being mounted in a manner to face each other so as to be apart by a distance more than a range of working by the tools and having an abutment surface to support a member to be worked at a predetermined angle inside one of the fences and positioning grooves 5a and 6a.

Abstract: A ruler has a first incremented surface, a second incremented surface, a first side surface, a second side surface, and a bottom surface. All the surfaces connect together forming the general structure of the ruler. The ruler also includes a keypad having a plurality of buttons. In one mode, the ruler measures points on scaled drawings and calculates a scaling factor from those two points. In another mode, the scaling factors are entered directly for use with scaled drawings. The ruler is particularly useful for distorted scaled drawings such as those that have been altered by electronic media.

Abstract: A sprinkler drop ruler is provided for measuring the sprinkler drop from a roughed-in outlet. The sprinkler drop ruler includes a rigid frame having an opening, a handle connected to the rigid frame and in fixed relation to the rigid frame, and a ruler with an end shaped to seat in the opening and configured to move inside or along a side of the handle in order to measure a sprinkler drop. The sprinklerfitter may thus use the sprinkler drop ruler in order to measure the sprinkler drop. In this way, the sprinklerfitter does not need to climb a ladder to measure the sprinkler drop.

Abstract: A measuring device includes a bracket, a sliding ruler, a securing assembly, and a driving assembly. The bracket includes a first set of scale lines. The sliding ruler is slidably attached to the bracket and includes a second set of scale lines. The securing assembly includes a securing member and a resilient member mounted to the securing member. The driving assembly is rotatably attached to the bracket and includes a handle and a gear secured to the handle. The gear is rotatable to slide the sliding ruler relative to the bracket; the securing member is secured to the bracket, and the resilient member is secured between the sliding ruler and the bracket, to prevent the sliding ruler from sliding relative to the bracket.

Abstract: A collection of couplers and a corresponding coupling method that removably connect existing forensic scales to create a coupled scale, wherein a ruler arm of each scale is slidingly engaged in a track of the coupler that provides and maintains arm-to-arm angular accuracy for scales coupled in a fixed angle, co-planar joint, and measurement accuracy of scale markings across the joint. The track includes a lower surface; two laterally opposed parallel edge walls extending up from the lower surface and spaced apart by a dimension suitable for slidingly engaging a ruler arm width; holding tabs that extend laterally inward from both edge walls spaced above the lower surface by a dimension suitable for slidingly engaging a ruler arm thickness; an open end; and preferably a longitudinally distal registration stop. Two coupler tracks are joined with co-planar lower surfaces; and an edge wall of each joined at a fixed angle vertex.

Abstract: The present invention relates to a tool for drawing which is capable of providing convenient painting representation of drawing such as a sketch, a study, cartoon, an independent drawing, and the like. The tool for drawing includes: a linear body; and a back-sight means which is formed in at least one point of the body and is perpendicular to the body. The tool for drawing greatly helps a user to sight a representation object of drawing precisely since the tool for drawing can be used as a reference to sight the representation to keep the tool for drawing always perpendicular to a direction at which eyes of the user points. In addition, the tool for drawing of the present invention has another advantage in that it can sight length, angle an so on of the representation object even more precisely and has a wide use for home life, construction and so on.

Abstract: A device for three-dimensional representation of horsebacks through measurement points, comprising: plural vertically telescoping and column shaped segments which are connected with a frame and which include flexible transversal elements at their upper end which flexible transversal elements are bent like an umbrella and have flexible curvatures, wherein the vertical segments are configured to be variably offset from one another in the frame and configured fixable in a temporary manner and the curvature of the transversal elements that are bent in the shape of an umbrella is adjustable and fixable in a temporary manner, wherein the transversal elements include measuring points which are configured variably arrangeable in a vertical plane through devices for adjusting the curvature of the transversal elements, and wherein the measuring points of the transversal elements are arranged in the surface of the three-dimensional contour of the horseback.

Abstract: A measuring device includes at least three elongate sides, each side having first and second ends and a pair of outer edges extending therebetween. Each side includes a channel extending between the first and second ends at each outer edge. The measuring device includes a plurality of strips, the quantity of strips being at least as great as the quantity of all the channels. Each strip includes scaled indicia that is different from scaled indicia of every other strip. A respective strip is removably positioned in each of the channels such that each side has two of the strips offset 180 degrees away from each other. Each side is transparent to allow the scaled indicia of the strips in the channels to be viewed.

Abstract: This invention provides a series of evenly spaced marks disposed on an art implement handle which allow an artist to accurately compare the relative sizes of different portions of their subjects so that they may depict them to scale.

Abstract: A ruler tool is provided comprising a main guide frame 2 having guide portions 2a and 2b, a first guide frame 3 having a guide portion 3a to guide a tool in cooperation with the guide portion, a second guide portion frame 4 having a guide portion 4a to guide a tool in cooperation with the guide portion 2a, and a pair of fences each securing each of the guide frames with a predetermined interval being set among the guide frames so as to hold the tools, in a sandwiched manner, and being mounted in a manner to face each other so as to be apart by a distance more than a range of working by the tools and having an abutment surface to support a member to be worked at a predetermined angle inside one of the fences and positioning grooves 5a and 6a.

Abstract: A sheet material holder assembly comprising a top body having a top surface, a handle projecting generally upward from the top surface, and a first magnetic piece affixed to the top body opposite the top surface and a base having a second magnetic piece, at least a portion of the first magnetic piece aligned atop at least a portion of the second magnetic piece. The base may also include a cradle for receiving a tab of the top body which may be a straightedge having markings. A sheet material may be placed between the top body and the base for use in cutting or other use.

Abstract: The present invention provides for track for use in constructing metal stud walls. The track is a generally U-shaped channel having a base and upstanding side walls extending along either side of the base. The base is provided with a plurality of embossed indicator means evenly spaced along the length of the base. The spacing of the embossed indicator means provides a guide for the proper spacing of the studs placed in the base.

Abstract: A measuring device includes at least three elongate sides, each side having first and second ends and a pair of outer edges extending therebetween. Each side includes a channel extending between the first and second ends at each outer edge. The measuring device includes a plurality of strips, the quantity of strips being at least as great as the quantity of all the channels. Each strip includes scaled indicia that is different from scaled indicia of every other strip. A respective strip is removably positioned in each of the channels such that each side has two of the strips offset 180 degrees away from each other. Each side is transparent to allow the scaled indicia of the strips in the channels to be viewed.

Abstract: A ruler has a base, a design paper and a cover. The base has a ridge, a first inclined sheet, a second inclined sheet, a first horizontal tab and a second horizontal tab. The first inclined sheet is formed on the ridge. The first horizontal tab is formed on the first inclined sheet and has a top surface and multiple scales. The scales are formed on the top surface or the bottom surface. The second inclined sheet is formed on the ridge. The second horizontal tab is formed on the second inclined sheet. The design paper is mounted on the base. The cover is transparent, is mounted detachably on the base and covers the design paper. The design of the ruler can be replaced and the scales are not abraded easily.

Abstract: 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.

Abstract: The “PT RULER”, an improvement on the typical triangular architectural scale ruler, in the following ways: 1) improvement of the view angle of the ruler eliminating the need for the user to “bend over” the ruler, 2) improvement of the arrangement or placement of the scales on the ruler to enable the user to simply “rotate” the ruler to view related scales, 3) improvement of the color of the individual scales, with each scale having its own distinctive color, 4) improvement of the font of each individual scales, using different font sizes for better readability, and 5) improvement of the ruler by changing the 16 scale with a 16? on center scale (based on ¼? scale).

Abstract: A bias ruler excellent in practical value, which can draw a bias line simply, accurately and quickly, is excellent in operability and able to draw a bias line easily even on paper or fabric and reduce labor and time required for drawing bias lines at equal or regular intervals. The bias ruler of the present invention includes a transparent or semitransparent long ruler body 1 that has edge portions 3 formed on the longitudinal sides thereof for drawing bias lines, opposite ends in the longitudinal direction thereof used as reference parts 4, and a positioning portion 6 provided with a positioning side 5 and formed to project beyond the end of at least one side of the reference parts 4, wherein the positioning side 5 is formed of a side 7 tapered at about 45 degrees relative to the reference part 4.

Abstract: A ruler has a base, a design paper and a cover. The base has a ridge, a first inclined sheet, a second inclined sheet, a first horizontal tab and a second horizontal tab. The first inclined sheet is formed on the ridge. The first horizontal tab is formed on the first inclined sheet and has a top surface and multiple scales. The scales are formed on the top surface or the bottom surface. The second inclined sheet is formed on the ridge. The second horizontal tab is formed on the second inclined sheet. The design paper is mounted on the base. The cover is transparent, is mounted detachably on the base and covers the design paper. The design of the ruler can be replaced and the scales are not abraded easily.

Abstract: A safety rule includes a rule body, which has a stop flange protruded from and extending along one long side thereof, a protective plate, which has one long side pivotally coupled to the rule body so that the protective plate can be set in a collapsed position and closely attached to the top surface of the rule body when the safety rule is not in use or lifted from the rule body to a lifted position for protecting the user's hand to avoid accidental hand injury when the safety rule is used to guide a cutter in cutting a sheet member.

Abstract: This invention is a Brake Chamber Stroke Gauge. The Brake Chamber Stroke Gauge is a hand tool for the purpose of measuring brake chamber push-rod stroke on vehicle air brake systems. The Brake Chamber Stroke Gauge is comprised of a measuring rule that is connected to a bar in such a fashion as to allow the rule to travel or slide along the length of the bar, in order to position the numbering or characters at any desired location along the length of the bar. The invention has 2 sides: side A and side B. The increments and characters on side A are configured to be read in the upright position, and increasing in value when read from left to right. The increments and characters on side B are configured to be read in the upright position, and increasing in value when read from right to left.

Abstract: An electronic ruler has a generally rectangular-solid shape defining a length, width, and thickness. A straight edge exists along the length as do distance markings in at least one unit of measurement. A user input interface 1) receives user inputs of measurement in a format corresponding to the unit of measurement, and/or 2) shows a measurement made automatically by the ruler. A plurality of visual indicators, such as fiber optics, LEDs, etc., extend along the length and light in an amount corresponding to the user inputs or the measurement made. In this manner, basic rulers for school-aged children provide measurement capability in the absence of sufficient gradations. It also gives feedback regarding correctness to stimulate learning in adolescent students. An optical array also serves to transmit/receive light to automatically take the measurements upon indications from a user. A processor connects to the indicators and array for controlling lighting.

Abstract: A ruler in which one pair of parallel cuts are put in one raw material plate, a supporting point part is formed by narrowing both ends of the parallel cuts or making the both ends like a fork, a bent cut or a linear cut reaching to an end part of the raw material plate is put so as to surround the supporting point part or extend along it, and an arch part, in which a part included between the parallel cuts is bulged upward by heating, pressure friction, injection molding or chemical treating, is formed monolithically with the raw material plate, or made one in which a slip stop is applied wholly or partially in a back face of the arch part.

Abstract: A standard component for length measurement includes a first diffraction grating and a second diffraction grating. Each of components of the second diffraction grating is disposed between components of the first diffraction grating.

Abstract: An adjustment structure of garden shears, which utilizes an aligning lever disposed on the outer surface of an outer tube to support a protruding block; because the protruding block can be fitted into a trough on the outer surface of the inner tube and become secured, the inner tube and the outer tube become fastened together as a result. Moreover, a marked unit is disposed where said inner tube and outer tube are joined, thereby allowing the invention to have a structurally simple handle that can be aligned effectively, which in turn allows users to grasp the precision in the movement between said inner tube and outer tube.

Abstract: A ruler in which one pair of parallel cuts are put in one raw material plate, a supporting point part is formed by narrowing both ends of the parallel cuts or making the both ends like a fork, a bent cut or a linear cut reaching to an end part of the raw material plate is put so as to surround the supporting point part or extend along it, and an arch part, in which a part included between the parallel cuts is bulged upward by heating, pressure friction, injection molding or chemical treating, is formed monolithically with the raw material plate, or made one in which a slip stop is applied wholly or partially in a back face of the arch part.

Abstract: An adjustable setsquare for a power tool guide rail is described. The setsquare comprises an attachment member, in the form of a bar, for locating into a channel on the guide rail. The cross section of the attachment means is generally V-shaped and arranged such that the setsquare can be removed and reattached to the guide rail with consistency, whereby the angular displacement between a reference surface of the setsquare and the intended line of cut to be made by a power tool disposed on the guide rail remains constant after each reattachment of the setsquare.

Abstract: An apparatus for determining a desired height of a height adjustable furniture item, characterized in that it includes: a scale adapted to measure a length of the lower leg of a patient, means to determine a desired height of said item of furniture from said length and a means to translate said desired height to said furniture item.

Abstract: A marking device intended for marking objects or locations relating to criminal offences, accidents and the like is disclosed. In at least one embodiment, the marking device includes an elongated body including an arrow-shaped indicator at one end thereof, wherein the body is furthermore provided with linear measurement indicators along a substantial part of its length on at least one side.

Abstract: A pipe cutting supplemental apparatus and method prevents thin-walled pipe from collapsing when being cut with a standard pinch roll cutter. The tool may be embodied as a solid cylindrical insert, or a hollow cylindrical sleeve.

Abstract: A railroad wheel reference groove locating gauge for determining a measurement of an annular reference groove machined in a face of a railroad wheel spaced radially outwardly from an axle on which the wheel is mounted a predetermined distance indicative of the wheel diameter, with the measurement being taken while the wheel remains connected to the axle, the gauge comprising an elongate member having a first end and a second end, indicia on the elongate member at the first end thereof indicative of a length along the elongate member; and an attachment element at the second end of the elongate member for detachably securing the gauge relative to an axis of rotation of the axle, with the elongate member extending radially to the first end thereof adjacent the reference groove on the wheel for enabling the use of the indicia to determine the diameter of the reference groove.

Abstract: The present invention provides a tool that can be used to load catalyst into a chemical reactor. In a preferred embodiment, the tool may also be used to measure the outage in the reactor tube. Also in a preferred embodiment, the tool provides a way to prevent dust from accumulating on the upper tube sheet of the reactor while loading catalyst into the reactor tubes.

Abstract: A unitary guide tool that provides a guide for measuring and marking a work piece when moved along an edge thereof, the guide tool being in the form of a generally rectangular offset or stepped bar of material having a thicker section forming a stepped side for engaging the edge of a work piece in a first disposition and engaging a measuring tape dispensing housing in another disposition, the block being slidable along an edge of the work piece and having a longer dimension extending generally perpendicular thereto.

Abstract: An illuminated ruler including a light transmissive bar having opposed ends. An opaque film bearing printed indicia in the form of ruled markings is affixed to the bottom of the light transmissive bar. A light-emitting diode is embedded within the light transmissive bar for illuminating the ruled markings. A battery is carried atop one end of the bar and is connected to the light-emitting diode for energizing and illuminating the light-emitting diode.

Abstract: A measuring device includes a square ruler body provided with a plurality of scales, a plurality of marking lines, and a plurality of counting numbers. Each of the counting numbers has a corresponding numeral which is located under the respective the counting number for measurement of different directions. Thus, the measuring device is used to measure the size of the workpiece at any direction and any start point, thereby greatly saving the measuring time and the manual work. In addition, the counting numbers have a two-dimensional corresponding manner so that the measuring device can obtain the size of the workpiece instantaneously from left to right or from right to left without having to rotate or change the direction of the ruler body.

Abstract: A ruler (2) is disclosed, for desk use having an elongated ruler body (4) with a cross-sectional profile enabling at least one part of the ruler body to be placed either at a distance from the underlying layer or in contact with the underlying layer. The ruler, because of an elasticity thereof of the cross sectional profile, facilitates, the at least one part of the ruler body comprising anti-skid means (20) to establish a frictional engagement with the underlying layer by compressive deformation of the ruler body (2), so that the ruler is fixed in relation to the underlying layer. The ruler by simple means and measures easily and efficiently, solely, by the compressive deformation of the ruler body, is fixed in relation to the underlying layer.

Abstract: A quilting ruler is square or rectangular in shape and has first, second, third and fourth edges with a first set of equally spaced rulings running parallel to the first and third edges of the ruler and at right angles to a second set of equally spaced rulings running parallel to the second and fourth edges of the ruler. The first line of the first set of rulings is spaced from the first edge of the ruler by a different interval from the interval by which the last line of that set of rulings is spaced from the third edge of the ruler, and the distance of each line of the first set of rulings from the first edge and of each line of the second set of rulings from the second edge is marked so as to be visible when the first and second edges of the ruler are in use and the distance of each line of the first set of rulings from the third edge and of each line of the second set of rulings from the fourth edge is marked so as to be visible when the third and fourth edges of the ruler are in use.

Abstract: A beam scale for measurement of body weight and height according to the present invention includes a frame and a weighing mechanism. The frame includes a base assembly, a pillar assembly, and a horn assembly. The weighing mechanism is housed within the frame and includes a beam, weights, and a lever assembly. The horn assembly may include a transparent holding bracket having a level indicator. The scale may include a height measurement assembly having a height rod, a sheath supported by the horn assembly and the pillar assembly, a measuring arm, and a transparent height-measuring window having a line indicator. The frame may include a quick assembly mechanism to secure the pillar assembly to the base assembly during final assembly, quiet wheels for transport, and/or handle bars to support the user. Much of the frame may be made of pigmented thermoplastic or thermoset materials to reduce manufacturing costs and scale weight.

Abstract: A ruler that is to be used for cutting sheets of material perpendicular to its longitudinal edges. The ruler is a longitudinal piece of rigid material that increases in thickness from one edge to the other. A cutting groove is placed into the rigid material at a thickened edge so as to aid the direction of a sharpened instrument passing through the groove while cutting the material. A hardened insert may be inserted into the groove to prevent the edges of the groove being damaged by the sharp cutting instrument. One end of the ruler has an extension of eyelet molded thereon and the other end of the ruler has a depression molded into an under surface of the ruler. Both the eyelet and the depression have a matching configuration to snap-fit into each other to thereby connect two rulers together in a rigid manner.

Abstract: A pipe insulation assembly includes a length of tubular insulation with a longitudinally extending slit so that the tubular insulation can be passed over and mounted on a length of pipe and a jacket overlaying the outer surface of the tubular insulation. To facilitate the installation of the pipe insulation assembly, a ruler, which is associated with the jacket and, preferably, no longer visible when the pipe insulation is mounted on a pipe, extends for the length of the jacket and is located adjacent the slit in the tubular insulation. The ruler has units of linear measurement marked thereon for measuring the pipe insulation assembly in the direction of the length of the pipe insulation assembly.

Abstract: A guiding device wherein an illustrated embodiment of the guiding device includes an elongated finger-resting surface, an elongated upstanding section, and an elongated first scale-supporting section. The upstanding section is positioned between the first scale-supporting section and the finger-resting section. The first scale is an elongated, narrow strip having a first scale surface rigidly and unreleasably attached to the first scale-supporting section of the second portion. The first scale has a second scale surface opposite to the first scale surface. The second scale surface has first indicia to indicate predetermined lengths along the first scale. The finger-resting surface permits fingers of a user gripping the guiding device to be positioned on the finger-resting surface while being protected from an implement by the upstanding section during movement of the implement along the guiding device, adjacent the first scale.

Abstract: A drawing tool in the form of an angle bar with first and second legs having parallel edges and outer faces forming a dihedral angle greater than 180°, and with a handle attached to the first outer face. The handle and the first edge are preferably disposed in a plane that is perpendicular to the second edge.

Abstract: The tool for locating a center mark for embroidery on articles such as garments includes a planar body having orthogonally-related legs with respective exterior and interior edges. Index markings are provided on the legs along the linear edges. The index markings include indicia identifying a plurality of corresponding preestablished garment sizes along the linear extending edges, respectively. By aligning common selected sizes along the edges with the vertical centerline of a folded garment and a shoulder portion of the garment, respectively, the location of the embroiderer's center mark on the garment is identified at the intersection of the linear edges. The interior edges of the tool may also used to form marking lines where conventional hoop grids are not available.

Abstract: The present invention is a nontechnical, nonmechanical, easy to use, healthcare product that allows any individual to monitor changes in moles, freckles, or other skin growths in the comfort of their own home. It doubles as a record-keeping system that allows a person to compare new measures to their previously recorded measures—notice a change has occurred—and make a potentially life-saving appointment with a dermatologist. By using the flexible transparent sheets and a numeric value system, the product identifies changes in size, shape, color, “geography” of the mole and if any bleeding has occurred; all of which are important features in the development of skin cancer or melanoma. This product does not diagnose or treat a disease, but most importantly it provides people with a means of discovering a potential problem that normally would be undetected by the naked eye. This product has the potential to decrease medical care costs, reduce human suffering, and save lives.

Abstract: A special tape (22) for measuring blocks used in the construction of wood structures includes two special scales. A first scale has marks (32) spaced at 14½ inch intervals for making blocks for studs, and a second scale has marks (34) spaced at 22½ inch intervals for making blocks for rafters. The tape (22) is longitudinally placed along a two-by board (500) and marks (36) made on the two-by board (500) at the desired intervals of 14½ or 22½ inches. The two-by board (500) is then cut at the marks (36) to create the blocks, which are then placed between the studs or rafters.

Abstract: A dual axis flexible rule is predisposed to a curved configuration, but is adapted to be pressed more flat in use. The rule includes a curved portion and a substantially non-curved or flat portion, and enables transcribing straight lines onto curved surfaces.

Abstract: A multifunction acoustic/audio assistant includes a hand-held device body, a ruler, and all observation device. A rear side of the hand-held device body is provided with a measure face defined thereon to measure an intersection angle of microphones. The ruler is mounted onto a side face of the hand-held device body proximate to the measure face in order to measure the distance between the respective diaphragms of the microphones. The observation device is mounted onto the hand-held device body to determine the sound dispersion area and remotely observe distant events. The different tools demanded by an acoustic/audio specialist are thus integrated into the hand-held device.