Abstract: A wall plate mounting system for attaching one end of a swing arm at a desired height and orientation to a vertical wall and attaches at the opposite end to a monitor and keyboard. The system includes an elongated body opened at one end with a center channel partially covered by two elevated flanges. The elongated body includes lateral flanges each with an upward extending ear. The ears are spaced apart and form a slot that communicates with the channel. Formed on the elongated body and under the slot are mounting holes. The system also includes an elongated template configured to slide freely inside the channel and under the ears. Formed on the elongated template is an elongated second slot and length measurement indices. During assembly, the elongated template is partially extended from the r channel formed on the elongated body at a desired length and locked together to form a jig.

Abstract: According to some embodiments, a first toy body comprises a first level oriented in a first direction, and a second level oriented in a second direction. A second toy body comprises a third level oriented in the first direction, and a fourth level oriented in the second direction, wherein the first direction is perpendicular to the second direction.

Abstract: A laser level containing a housing, an electronic tilt sensor located in the housing; a controller to which the electronic tilt sensor is connected, and a laser module. The controller is communicable with a first display device and a second display device. The laser line is adapted to project a straight ground laser line on a flat surface. The electronic tilt sensor is adapted to detect a tilt of the laser level and provide a measurement signal to the controller. The controller is adapted to provide a display signal to the first and second display devices to display information about the tilt. By using an electronic tilt sensor, the laser level can provide accurate indicate of the tilt of the device and also allows such tilt information to be processed further.

Abstract: A method and electronic measurement device are provided for putting multiple bends in a conduit while controlling the angular relationship of the bends relative to each other about the longitudinal axis of the conduit. The device includes an electronic component configured to generate a first signal that varies based on an angle of rotation of the component about an x-axis, and a housing carrying the electronic component and having a conduit mount structure configured to mount the housing on a conduit with the x-axis in parallel alignment with the longitudinal axis of the conduit.

Abstract: A post sleeve installation system can include a plurality of post sleeve installation devices and at least one spacing beam or mechanism. The spacing beam or mechanism can include end portions that rotate about multiple independent axes and can be coupled to a pair of post sleeve installation devices to determine or control the relative locations and orientations between two post sleeves. The post sleeve installation system can be used to install post sleeves for posts for a fence, a rail or other structure supported by posts.

Abstract: A specially designed bubble type level usable to verify that an angle made in a tubular structure for example, electrical conduit, is level. The apparatus is particularly useful during manual bending of electrical conduit and similar field-modified tubular structures. The apparatus allows for quick and efficient magnetic coupling to metallic conduit, without the need to turn a thumbwheel or screw. In addition, the apparatus of the present disclosure comprises a compact physical size, allowing the device to be operated with one hand and to easily fit into a user's pocket.

Abstract: A specially designed bubble level having an articulating portion that may be used to verify that an angle made in a tubular structure for example, electrical conduit, is level. The level apparatus of the present disclosure may also be used to verify the angular displacement of the tubular structure about a bend, using a bubble level as reference. The apparatus is particularly useful during manual bending of electrical conduit and similar field-modified tubular structures as the apparatus provides a convenient and readily-discernible indication when a tubular structure that is being bent has been brought to a predetermined bend angle.

Abstract: An electronic marker for locating obscured objects such as buried conduits has a built-in level indicator to provide a visual indication of when the marker has been properly oriented, e.g., a flat marker which should be positioned horizontally when deployed. The level indicator can be an air-bubble level formed from a transparent semispherical portion of the marker body with a partially-filled chamber. Alternatively, the level indicator can be a gravity-ball level with a circular ridge formed along the concave interior surface of the semispherical portion and a ball located within the ridge. In a further embodiment the level indicator is an electronic level having a tilt indicator circuit in which an electronic controller selectively illuminates light sources in response to signals from tilt sensors. The light sources may for example comprise four light-emitting diodes located at four respective corners of the marker body.

Abstract: The present invention discloses a laser level, which includes a top surface and a bottom surface parallel to each other, and a main body to be installed with a plurality of vials. One end of said main body has an integrally extended configuration of a base. Said base is pivotally connected to one end of a connector, while the other end of said connector is bound with a laser module, so that the laser module can rotate freely around the pivot between the connector and the base to adjust the projection angle of the laser beam.

Abstract: Disclosed in the present invention is a monitoring apparatus and control method of crane hoisting vertical deviation angle; the monitoring apparatus uses a dual-axis inclinometer to measure the vertical deviation angle of the lifting pulley block of a crane, wirelessly transmits the angle signal and dynamically displays the angle by a control display; the control method adopts the monitoring apparatus mentioned above. The monitoring apparatus thereof fixes a measuring platform on the outside of the guard plate of the movable pulley of the lifting pulley block, and the dual-axis inclinometer is fixed on the measuring platform surface which becomes a horizontal plane when the crane hoisting vertical deviation angle is 0 degree. The present invention can achieve detecting and monitoring the verticality of the lifting pulley block in real time, and avoid the risk of the crane non-vertical hoisting.

Abstract: The invention relates to method and a system of interpreting angular orientation data. It is determined, whether the angular deviation of a current angular orientation (C) of a sensor device (12) from a last extreme angular orientation (L) currently decreases after having increased before up to a provisional new extreme angular orientation (P), thereby determining that the provisional new extreme angular orientation (P) is a new extreme angular orientation. Information relating to a new extreme angular orientation, such as an angular range of motion, may be output to a user.

Abstract: A clinometer apparatus includes a first measurement member, a second measurement member, and a coupling member. The first measurement member includes a first plate on which first angle indices are formed, and a first coupling unit that has a circumferential :surface on which second angle indices are carved. The second measurement member includes a second plate, a second coupling unit that is coupled to the first coupling unit due to the coupling member, and a compass that is coupled to the second plate. The coupling member couples the first coupling unit and the second coupling unit so that the second measurement member rotates relative to the first measurement member about a rotational axis of the first coupling unit.

Abstract: Applicant has devised a slope measurement tool which can be arranged in a compact storage configuration which is relatively small and lightweight. The tool can be reconfigured to several different configurations to measure the slopes of trenches, benched slopes, and other excavations. The slope measurement tool devised is adjustable to measure several different specified angles. In one form, the apparatus can be utilized to measure benching, which is described in the OSHA code.

Abstract: A measurement device comprising a curved container containing a liquid, a first indicator that is less dense than the liquid, and a second indicator that is more dense than the liquid, where the liquid substantially fills the container so that the position of the first indicator and/or second indicator in the container relative to the reference indicia may indicate an angle-related property of the device.

Abstract: A gradient measuring apparatus includes a gimbal assembly operably supported in a vehicle for viewing by an operator to see gradient indications. The gimbal assembly includes a support housing (such as outer orb with transparent portion) and a multi-axis gravity-biased-to-center inner orb weighted to return to gravitational center. The outer orb includes ring gradient indicators, and the inner orb includes a center indicator. By this arrangement, the center indicator accurately reflects on the gradient indicators a grade at which a surface is being cut in an excavating process when viewed in combination with the gradient indicators due to multi-axis gravitation movement of the inner orb.

Abstract: A multi-purpose squaring and leveling tool comprising a generally trapezoidal body, angled corners, and leveling inserts. The tool may be used for tradesman, pipe fitters, and home carpenters as a means of setting joints and other construction or repair. The shape of the tool allows for the squaring and leveling of joints around obstacles which may present barriers to traditional squaring tools.

Abstract: Applicant has devised a slope measurement tool which can be arranged in a compact storage configuration which is relatively small and lightweight. The tool can be reconfigured to several different configurations to measure the slopes of trenches, benched slopes, and other excavations. The slope measurement tool devised is adjustable to measure several different specified angles. In one form, the apparatus can be utilized to measure benching, which is described in the OSHA code.

Abstract: The invention relates to method and a system of interpreting angular orientation data. It is determined, whether the angular deviation of a current angular orientation (C) of a sensor device (12) from a last extreme angular orientation (L) currently decreases after having increased before up to a provisional new extreme angular orientation (P), thereby determining that the provisional new extreme angular orientation (P) is a new extreme angular orientation. Information relating to a new extreme angular orientation, such as an angular range of motion, may be output to a user.

Abstract: A measuring device comprising a base, feet connected to the base, and an inclinometer mounted on the base is used to characterize a surface. The feet are placed in direct contact with the surface at a predetermined position. The inclinometer measures the angle of the surface relative to gravity at the predetermined position. In some embodiments, multiple measuring devices are connected to an arm, in order to measure different positions on the surface simultaneously. The arm may be moved by an actuator to the next predetermined position on the surface. In some embodiments, multiple measuring devices are connected to a frame that is substantially the same size as the surface to be characterized, such that the entire surface can be characterized without moving the frame.

Abstract: A skyline imaging system includes an image sensor and an inclination reference coupled to the image sensor. The inclination reference provides a righting moment for the image sensor and establishes a predetermined orientation for the image sensor relative to the Earth's gravity vector. A heading reference determines an azimuth heading for the image sensor.

Abstract: A measuring device comprising a base, feet connected to the base, and an inclinometer mounted on the base is used to characterize a surface. The feet are placed in direct contact with the surface at a predetermined position. The inclinometer measures the angle of the surface relative to gravity at the predetermined position. In some embodiments, multiple measuring devices are connected to an arm, in order to measure different positions on the surface simultaneously. The arm may be moved by an actuator to the next predetermined position on the surface. In some embodiments, multiple measuring devices are connected to a frame that is substantially the same size as the surface to be characterized, such that the entire surface can be characterized without moving the frame.

Abstract: A skyline imaging system includes an image sensor and an inclination reference coupled to the image sensor. The inclination reference provides a righting moment for the image sensor and establishes a predetermined orientation for the image sensor relative to the Earth's gravity vector. A heading reference determines an azimuth heading for the image sensor.

Abstract: The present invention regards methods of projecting, producing and bending continuous stretches of circular cylindrical bodies, such as stretches of piping, handrails and rails for stair lifts. The invention also regards a tool for use with the method, application of a tool, and a length of pipe and fittings prepared for use with the method. During the project planning, the orientation of the fitting (52) is given in relation to the first piece of pipe (50), by the cut angle of the fitting (52) and the rotational angle (?) of the fitting about the longitudinal axis of the pipe (50) relative to a defined spatial direction gen by a mark (53, 54) on the piece of pipe (50) and the fitting (52). During construction, the piece of pipe (50) is arranged with one side in a defined spatial direction, the fitting (52), which has a given cut angle, is fitted to the piece of pipe (50) and the fitting (52) is rotated through a pre-determined rotational angle (?) that is measured relative to the defined spatial direction.

Abstract: A surveyor's tool to facilitate the measurement of the elevation of an invert within a manhole includes a rod with a dimensioning along its length. The tool further includes a slide moveable with respect to said rod. The slide includes a pair of opposing arms, the arms extending from opposite sides of the slide and extending perpendicular to the length of the rode. The slide further includes an inclinometer for measuring the angle of incline of the rod. Using the length of the rod extending into the manhole and the angle of the rod as determined by the inclinometer the depth of the invert can be calculated.

Abstract: A portable multiple-axis leveling device for removably attaching to selected objects includes a main body portion having a plurality of distinct alignment detection units disposed therein, with each alignment detection unit being configured to measure and display levelness along respective axes such that at least two distinct axes may be simultaneously measured for respective levelness without adjustment of the main body portion, and a clamping portion operably coupled to the main body portion, with the clamping portion having a recessed portion for receiving selected objects therein. The portable multiple-axis leveling device further includes a securement apparatus operably coupled to the clamping portion for removably securing the clamping portion to the respective selected object that is operably positioned in the recessed portion. The portable multiple-axis leveling device is preferably sufficiently portable to readily fit within a typical clothes pocket.

Abstract: The disclosed invention is an improvement on the traditional measuring wheel. When the odometry information is combined with two robust attitude sensors and an on-board computer, the instrument is able to perform useful measurements such as the calculation of an area or the description of a non-linear contour, as well as the traditional distance measurements and other uses.

Abstract: A magnetic compass modified for use in linear, angular and, geometric as well as, or instead of, directional measure. Body (30), (35) manufactured to a predetermined circumference and made of a break-resistant material. Mounted on the base (33a) or, suspended from the top section (33b), is a freely pivoting or movable magnetic pointer (32) and a transparent, or partially transparent, upper section (35) so that the position of the pointer may be observed. Outer edge (31) made of slip-resistant material for contact and rotation on surface of structure being measured. Outer edge of base is calibrated with appropriate units positioned for use with pointer. Calibration (FIGS. 4a-c) could also possibly be inscribed on upper section of body instead of on the base. Most operations center around the locations of two variable points on the Compass Ruler, the contact point (37) and the zero point (36).

Abstract: An economical, compact guide for introducing multiple bends in one or more planes in a pipe, conduit, or other tube-like item. The guide has a gauge section rotatably attached to a mounting section and is affixable by means of a non-deforming clamp to the end of a pipe segment to be bent. The gauge section has a bend-angle gauge and a bend-plane level. The bend-angle gauge is a plumb arm mounted so as to measure and indicate the bending of a pipe to any degree of bend. The bend-plane guide is a 360° level mounted on an upper face of the plumb arm. Multiple bends are made in the pipe segment without removing or re-aligning the guide. This ensures that the initial reference position is maintained throughout the bending process and ensures that all bends are in the proper bend-plane, thus avoiding “dogging” between successive bends.

Abstract: A manually operated angle pickup or detector has a rotatably mounted and manually movable transmitter element, a sensor that scans the transmitter element and a detent coupling that operates magnetically and in a contactless manner to maintain the transmitter element in defined angular positions which can change from one to another by manual operation. The detent coupling includes at least one permanent magnet with poles disposed in the axial direction and two toothed disks provided on the side of at least one pole of the permanent magnet. The two toothed disks are radially spaced and have a corresponding number of teeth. The disks are interconnected by the magnetic flux and are of a material with good conductivity.

Abstract: An apparatus for comparing compliance of a grade to a predetermined slope includes a block and a level. The block has at least one notch positioned at a distance from a first end of the block such that when the method of this invention is practiced, a level indicator will indicate whether a grade on which the apparatus is resting matches a predetermined grade. A method of this invention includes the steps of inserting an arm of predetermined length into the notch and placing the joined block and arm on a grade. A level is placed at the arm to thereby compare compliance of the grade to a predetermine slope.

Abstract: An electronic level includes a visual scale (similar to a ruler scale) having a number of parallel line segments. The inclination of the device is shown by illuminating various of the scale line segments on either side of a central line. When the device is at a null (typically level or plumb) only the central scale line is illuminated, indicating the inclination away from the null. Each scale line segment indicates a fraction of an inch of inclination per e.g. two feet of horizontal distance (the two feet being the level length in one version) which conforms to the normal use of such levels by building tradesmen. The level is calibrated by taking two readings with the level rotated 180.degree. between readings. The readings are averaged and negative feedback is provided to the level sensor itself to null out any system mechanical or electrical offsets.

Abstract: An electronic level for leveling a fence post or other vertical member includes two inclination sensors mounted orthogonally. The sensors measure inclination in each of two orthogonal planes. The output of the sensors is displayed by two scales which intersect at a central point. Each scale includes a number of triangular shaped segments arranged along a line. Each of the two scales depicts inclination in a plane determined by its associated sensor; when the fence post is at the vertical position the display so indicates by illuminating a central display point at the intersection. Otherwise the illuminated triangular shaped arrowhead for each scale indicates in which direction the worker is to move the fence post in each of the two corresponding dimensions so as to achieve verticality.

Abstract: An electronic level includes a visual display (similar to a ruler scale) having a number of parallel line segments. The inclination of the device is shown by illuminating various of the scale line segments on either side of the central line. When the device is at a null (typically level or plumb) only the central scale line is illuminated, indicating the inclination away from the null. Each scale line segment indicates 1/64th of an inch of inclination per foot of horizontal distance which conforms to the normal use of such levels by building tradesmen. A multi-tone audio output corresponds to the visual display line segments, with one tone being provided for each increment of inclination arranged in order of the musical scale. A fixed offset mode is provided showing if the device is at a particular slope such as 1/8" per foot. In addition, a variable user offset mode allows indication of any predetermined inclination within the full 360.degree. range.

Abstract: A level/protractor tool which includes two or more sections pivotally joined to facilitate angular displacement. One or more sections house level-indicating spirit vials. Angular displacement indicia marks are imprinted on each section at its juncture with an adjoining section to visually indicate the degree of angular displacement between adjacent sections.

Abstract: A conduit bending plane and bend angle indicator having a clamp mounting, an anti-dog bubble level to indicate the bend of plane, and an angle bubble level to indicate the bend angle. The invention further features a ratchet connection between the anti-dog bubble level and the clamp mounting to enable the anti-dog bubble level to be referenced at level without having to rotate the conduit to level. A second ratchet connection is also provided which allows the angle bubble level to be set plumb so as to accurately indicate the bend angle without having a first level the conduit along its longitudinal axis. Thus, the disclosed invention provides a quick and easy device to indicate the bending plane and bend angle of conduit being bent without requiring additional adjustments to the conduit once the device is mounted to it.

Abstract: Disclosed is a leveling tool that has three leveling indicators mounted thereon, one of which is removable and usable as a separate tool when bending electrical conduit. A calculator is integrated into the leveling tool for performing calculations during leveling or during the bending of conduit. A phosphorescent liquid is used in the bubble level indicators for low light use.

Abstract: A hand held instrument for determining the degree of angular deviation of a line between selected points on a subject from a gravity-dependent reference, including a transparent base through which the selected points may be viewed and a gravity-dependent indicator mounted on the base for free rotation under the influence of gravity. The base includes indicia complementary with the gravity-dependent indicator to provide an indication of the degree of deviation between the gravity-dependent indicator and the line between selected points on the subject when the instrument is held in a substantially upright position.

Abstract: An instrument for measuring angles, vertical line or horizontal line includes a square casing having two axial lines crossing at a center of the casing and having a colored liquid filled in the casing, and a rotating disc rotatably mounted on the casing, in which the rotating disc is formed with an upper half circle portion radially formed with a plurality of angular graduations in terms of degrees, and formed with a lower half circle portion having two vertical columns parallelly formed below a diametrical line dividing the two half circle portions, and at least a reference line linked between any two horizontal graduations respectively formed in the two vertical columns, whereby upon a rotation of the disc to parallel the reference line to a liquid level of the colored liquid, an angle can be obtained by matching the angular graduation with any one axial line when the casing is laid on or coincided with a plane to be measured.

Abstract: An instrument for observing and measuring string segment angles in pianos wherein strings exist in three segments, a speaking string segment, a bridge string segment, and a rear string segment, these three segments creating two angles in the approximate vertical plane, a speaking string segment - bridge string segment angle, and a bridge string segment - rear string segment angle. Subject instrument having the capacity to measure said string segment angles accurately, and directly, without the need for calculations.

Abstract: A conduit bending level device to be attached to the front end of a conduit to maintain the vertical plane of the conduit through a series of bends including a spring yoke to slide and hold over the end of the conduit on the top with a slot to allow marking of the position, a level vial held away from the end of the conduit and a pivoting horizontal hinge to allow the vial to be moved upwardly or downwardly in a vertical direction.

Abstract: A hand-held instrument for leveling, and indicating and measuring angles for use with an anchored guide string, including a case, a fixed scale and a pendulum-activated indicator mounted in the case, a disc-shaped string direction sensor member rotatably mounted in the case and having a string alignment mark, and an aperture with peripherally located case axis marks for determining coincidence between the string alignment and case axis marks.

Abstract: A conduit bending plane indicator comprising a base, a clamp for affixing the indicator to conduit to be bent, bubble level indicators to provide an indication that a bend in the conduit is coplanar with reference planes, and an angle indicator to provide an indication of the angle of bend of the conduit. The bubble levels are mounted at opposite ends of the base member orthogonally oriented to one another to insure level placement of the conduit in a conduit bending device. The angle indicator is pivotable and attachable to either side of the apparatus to facilitate ease of reading.

Abstract: A gauge for the measurement of the shoulder bone angles of horses with respect to gravity, as an aid in the proper shoeing of the fore feet. The gauge has a gravity reference pointer which swings about a pivot axis so that it points downward under the influence of gravity, and protractor means to indicate the relative angle between the gravity pointer and the horse's shoulder bone angle. The protractor means include an angle scale, a concave locating cup adapted for positioning over the horse's shoulder point, an opposite bone angle pointer integral therewith and optional clamp means for controllably securing the gravity reference pointer with respect to the scale.

Abstract: A gauge for the measurement of the shoulder bone angles of horses, as an aid in the proper shoeing of the fore feet, has a reference level and a pointer relatively rotatable about a pivot axis, a concave locating cup concentric with the pivot axis and adapted for positioning over the horse's shoulder point, clamp means releasably securing the pointer and the reference level for selective relative rotation, and protractor means to indicate the relative angle between the pointer and the reference level. The reference level provides determination of the angle between the pointer and a ground plane. The protractor includes a scale and a cooperating needle or index marker, the needle being preferably on the pointer and the scale preferably being on the reference level and concentric with the pivot axis.

Abstract: The indicator includes rotationally movable indicator means for indicating a selected reference angle and pendulum actuator means for maintaining the angular position of the indicator means substantially constant with respect to vertical. The indicator is particularly suited for use in the correlated preparation of multiple teeth for application of one piece multiple crown castings by forming corresponding inclined teeth surfaces parallel.

Abstract: A hand operable device for conveniently determining geometric pitch of propellers. The device includes a level indicating device and a support means therefor. The support means has pressure surfaces engaging protrusions disposed thereon in a plane oblique to the axis of the level indicating device. The configuration is such that the axis of the level indicating device will lie in a horizontal plane only when the propeller pressure surface engaging protrusions are disposed upon a pressure surface of the propeller at a given distance from the axis of rotation thereof. Upon measurement of the distance from the axis of rotation of the propeller to the level indicating device, one may readily calculate the geometric pitch of the propeller by multiplying such distance by a constant characteristic value of the device.