Abstract: A coordinate measurement machine (CMM) may include a manually-positionable articulated arm including arm segments and rotary joints. A swivel joint may include two or more bearings, a shaft coupled to an inner race of the first bearing and an inner race of the second bearing, a first housing coupled to an outer race of the first bearing, and a second housing coupled to an outer race of the second bearing. The second housing is not directly connected to the first housing. The swivel joint may also include an inner spacer coupled to the inner race of the first bearing and the inner race of the second bearing and an outer spacer coupled to the outer race of the first bearing and the outer race of the second bearing. Most of an outer surface of the outer spacer may be exposed to form a portion of the housing of the CMM.

Abstract: A level includes a frame supporting a plurality of vials and having an aperture disposed on an end of the level. The level also includes an end cap assembly detachably coupled to the end of the frame. The end cap assembly includes an end cap and a retainer. A portion of the end cap is received in the aperture and is maintained in engagement with the frame by the retainer.

Abstract: A foot imprinting device includes a plurality of foot imprinting units each of which includes a base seat, a colored pad disposed on the base seat, and a light transmitting sheet flippably disposed on and covering the colored pad. The light transmitting sheet is movable between a first state, in which the light transmitting sheet is configured to be stepped on by a person, and a second state, in which the light transmitting sheet is configured to show a footprint of a foot of the person.

Abstract: An instrument for determining level or plumb orientations includes an elongated body having a plurality of orientation measurement devices. Each of the orientation measurement devices can indicate either a level or plumb orientation depending on a position of the instrument. The orientation measurement devices each include a chamber having front and rear convex sides, a fluid contained in the chamber, and an air bubble floating in the fluid. The elongated body includes a set of first openings and a set of second openings. The orientation measurement devices are embedded into the elongated body through the first set of openings and the orientation measurement devices each include bubble therein viewable from the front and back of the elongated body. The bubble is also viewable from the top and bottom of the elongated body through the second set of openings.

Abstract: An assembly comprises a support including a plurality of individual sections. A scale is disposed on the support. The scale extends in a longitudinal direction and has a measuring graduation for position measurement at least in the longitudinal direction. A plurality of fastening devices are configured to fasten the scale to the support. The fastening devices are disposed on the individual sections of the support.

Abstract: An In-Process Diameter Gage comprises a Position Detection Subsystem, preferably an optical switch and trigger, a Dimension Measurement Subsystem, preferably comprising a wheel of known diameter and a rotation encoder, and a Data Processing Subsystem, all configured and arranged to determine a dimensional property of a rotating part, such as diameter.

Abstract: An automatic process and structural features for accurately producing levels is provided. The process enables more rapid production of levels, less operator work or error, and the ability to quantify errors and tolerances in the manufacture of the level. Coupling a level datum plane formed on the endcaps of a vial with a level datum plane of a frame ensures accurate construction of a level that can be automated and toleranced. Ensuring that the level datum plane created at the endcaps remains parallel (or at some other predesigned angle) to the measuring surfaces of the level reduces labor to manufacture the level and ensures measurement accuracy.

Abstract: The template-marking tool for installing conduit may comprise a template for locating the center of a new conduit aperture on a junction box. The template may be pressed against a wall of the junction box and may slide along the junction box until a first mark shows at one of a plurality of alignment slots. A second mark may be made on the junction box at one of a plurality of centering apertures. The new conduit aperture may be drilled at the second mark to create an aperture for accepting a conduit connector that an individual conduit will couple to. A plurality of indicia may be adapted to guide a user in selecting one of the plurality of centering apertures on the template based upon the size of a conduit support strut and the diameter of the individual conduit.

Abstract: There is provided an apparatus, a system, and a method for locating and marking a position on a surface during surveying. The apparatus is for use with a rotorcraft or flying machine and a positioning device, and comprises a gimbal securable to the rotorcraft or flying machine, a prism fixed to the gimbal for reflecting signals from the positioning device, the prism having a center of mass, a laser secured to the gimbal and directed away from the center of mass of the prism towards the surface, and a controller for communication with the positioning device, the controller operatively coupled to the laser to operate the laser.

Abstract: A masonry level, with an extruded metallic box main body, is disclosed for measuring orientation of a work surface. The front of the main body includes an external longitudinal lower floating fin protrusion and a mid-section longitudinal tab and an upper longitudinal hook tab. The main body further includes an internal longitudinal tab in the back and multiple apertures for installation of eyelets for hanging the level, side bubble vials at the ends of the main body and a central horizontal bubble vial. The main body has a wider bottom relative to its top, and has a longitudinal upper back convex shape. A number of plastic claddings are attached to the front of the masonry level. Endcaps are attached to the ends of the main body structure. The masonry level can also be used as a construction tool to smooth uncured concrete and mud plaster surfaces.

Abstract: A conduit level for determination of conduit bend angles includes a frame supporting a plurality of bubble levels at various angular orientations. The frame has first and second opposite sides, a bottom edge extending along an axis, a top edge, and a front end edge connecting the bottom edge and the top edge. Each of the bubble level sensors has a unique angular orientation relative to the axis of the bottom edge of the frame. The frame includes at least one bubble viewing slot allowing a user to view the plurality of bubble levels in edgewise viewing directions facing the top edge and the front edge of the frame, and a plurality of bubble viewing windows allowing the user to view the plurality of bubble levels in a sidewise viewing direction facing at least one of the sides of the frame.

Abstract: A surface texture probe and a surface texture measurement apparatus with a vibrational membrane are provided. The probe includes a housing and a vibrational membrane, a stylus holder, a vertical guide assembly, a guide adjustment assembly and a stylus. An inner end of the vibrational membrane is attached to an upper end of the stylus holder. An outer end of the vibrational membrane is fixed to a vibrational membrane connection assembly fixedly connected to the housing. The vertical guide assembly is fixed inside the housing and slidably connected to the stylus holder and configured to guide the stylus holder to move in a vertical direction. The stylus is fixed to a lower end of the stylus holder. The guide adjustment assembly is mounted on the vertical guide assembly and configured to adjust a sliding friction force between the vertical guide assembly and the stylus holder.

Abstract: An end mill inspection device, which inspects an end mill having a blade part formed in a curved convex shape or an arc shape, includes: an imaging data acquisition unit that acquires imaging data obtained by capturing an image of a blade part of the end mill by an imaging unit; a contour extraction unit that extracts the contour of the blade part on the basis of the imaging data acquired by the imaging data acquisition unit; and a curvature radius calculation unit that calculates a curvature radius of the contour on the basis of the contour of the blade part extracted by the contour extraction unit.

Abstract: A target alignment system for calibrating a safety sensor mounted on a vehicle with front and rear wheels by locating an optimum target position upon a horizontal surface for accurate calibration of the sensor. The target alignment system comprises a plurality of visual guide projectors and a pair of target assemblies which project a visible guide line perimeter around the vehicle, the perimeter including parallel longitudinal lines on either side of the vehicle, a lateral alignment guide line crossing the longitudinal lines in front of the vehicle, and a center guide line colinear with the vehicle center line. The front and rear wheels of the vehicle are longitudinally aligned causing the vehicle thrust line to match the vehicle center line. One of the visual guide projectors projects a transverse line across the center guide line, creating an intersection point which marks the optimum target position.

Abstract: A system for assembling a fixture to hold a workpiece for measurement by a CMM includes a plurality of fixture components. The fixture components are used to assemble the fixture. The system also includes a fixture plate having a plurality of fixture component securing portions that are configured to couple with the fixture components to define the fixture. The fixture is configured to couple with the workpiece to hold the workpiece in a predefined orientation. A fixture identifier is configured to identify the fixture components, and a securing portion identifier is configured to identify the securing portions that couple with the fixture components. A visual emphasizing unit is configured to visually emphasize one or more of the fixture components and/or one or more of the securing portions to provide an indication of a fixture component that is to be coupled with a corresponding securing portion.

Abstract: A method for calibrating a laser level. includes arranging the laser level and a detector on a same horizontal plane to cause the laser level to be at a detected position, setting the laser level to be in a dot-sweep mode or a fan-sweep mode, when the detector detects the first laser beam for calibration emitted by the laser level, generating first position information by the detector, when the laser level rotates to a first rotation angle, rotating a laser projection direction of the laser level relative to the laser level along the opposite direction by a first rotation angle to cause the detector to detect the second laser beam for calibration emitted by the laser level to generate second position information, and determining whether the laser level needs to be calibrated based on the first position information and the second position information.

Abstract: An elevation assembly for an archery sight includes a rail adapted for connection with a bow and having a plurality of spaced teeth extending from a surface thereof. An elevation block is mounted on the rail for reciprocal sliding movement between the ends of the rail. A pinion wheel is connected with the elevation block. The wheel includes a plurality of teeth which are configured to mesh with the pinion teeth of the rail. A knob is connected with the pinion wheel. Rotation of the knob rotates the pinion wheel to displace the wheel and the elevation block along the longitudinal axis of the rail for precise elevation adjustment of the archery sight. Pressing the knob along an axis normal to the rail longitudinal axis moves the pinion wheel along the normal axis away from the rail axis to disengage the pinion wheel teeth from the rail teeth and allow the elevation block to slide freely along the rail for quick course elevation adjustment of the sight.

Abstract: A level attachment having a cylindrical tubing with a first half and a second half is capable of being removably secured about a weight lifting bar. A first embodiment employs a magnetic attachment means and second embodiment employs a clasping means. Within the first half is disposed a spirit level.

Abstract: A method is disclosed that includes measuring an inner diameter (ID) of a tubular at least at a plurality of points along an inner circumference of the tubular, at a predetermined axial distance from an end of the tubular, to yield a first set of measurements. A computer processor is used to: create a tubular profile from the first set of measurements, wherein the tubular profile represents a unique identification code of the tubular; save the profile; and thereafter identify the tubular. The tubular is identified via: receiving a second set of measurements of the ID of the tubular from at least at a plurality of points along an inner circumference of the tubular, at the predetermined axial distance from the end of the tubular; and comparing the second set of measurements with the saved tubular profile to identify the tubular.

Abstract: A modular gage system includes a base plate having an array of holes and a coordinate system to identify each hole. The modular gage system further includes a plurality of risers and at least one form block. Each riser is assigned to a particular hole and the at least one form block is configured to be positioned atop one or more of the risers. Moreover, each form block is assigned to be located over a particular hole.