617results about "Angles/tapers measurement gauges" patented technology

A digital protractor is provided for measuring spring and wall angles and determining and effecting bevel and miter angle adjustments of a miter saw to adjoining pieces of trim in accordance with the measured spring and wall angles. The protractor includes a pair of pivotally interconnected arms. At least one sensor is attached to one of the arms and a digital readout is secured to the other arm. The readout includes means for determining the bevel and miter angles such that the protractor can be set to those angles to properly adjust the miter saw in accordance with the calculated angles.

An instrument for establishing orientation of a pelvic prosthesis comprises a tri-pod having an angularly adjustable guide rod on it. The tips of the legs define a plane, and the guide rod is set by the surgeon to a defined orientation with respect to this plane on the basis of preoperative studies. In use, two of the legs of the instrument are positioned by the surgeon at defined anatomical locations on the pelvis (e.g., a point in the region of the posterior/inferior acetabulum and a point on the anterior superior iliac spine). The third leg then lands on the pelvis at a point determined by the position of the first two points, as well as by the separations between the third leg and the other two legs. The separations are adjustable, but are preferably fixed percentages of the separation between the first and second legs. The position of the guide rod then defines with respect to the actual pelvis the direction for insertion of a prosthesis.

A portable coordinate measurement machine comprises an articulated arm having jointed arm segments. The arm includes joint assemblies which include at least one read head together with one or more (preferably five) sensors (preferably proximity sensors) in communication with a periodic pattern of a measurable characteristic, the pattern and read heads being positioned within the joint so as to be rotatable with respect to each other.

The novel miniaturized inclinometer for angle measurement with accurate measurement indicator is designed to monitor the angular motion of limbs. The device contains at least one inclinometer with signal conditioning electronics, including a microprocessor, placed within a miniature housing. A number of different sensors can be used and positioned in their housings so that their outputs vary as a function of their angle with respect to the gravity sector. The microprocessor controls a multiplexer, which controls the activities of the sensors; performs analog to digital conversions and measures the output curves from the sensor pairs to perform a conversion which results in a three hundred and sixty degree range with respect to gravity. Calibration data is stored in a read only memory and the microprocessor corrects variables to ensure accuracy and measures the difference in angle between the pairs of sensors.

A method for improving the measurement accuracy of a portable coordinate measurement machine which comprises an articulated arm having jointed arm segments is presented. This method includes sensing deformation of a portion of the articulated arm when the arm is placed under a load, this deformation causing an error in the measurement made by the CMM, and correcting such error in response to the sensed deformation.

A multi-purpose measuring tool has an elongate base and arm pivotally connected at rounded ends thereof in an angularly variable relation to perform multiple functions, including measuring inclines, measuring corner angles, measuring distances, use as a square, use as a bevel gauge and use as a torpedo level. A retractable measuring tape housed within the arm has a terminal finger gripping end adapted to be pulled away from the arm and removably attached to a distal end of the base. The measuring tape is dual purpose in that one side of the tape is used for determining the angle of the arm relative to the base to perform some of the above functions, and the other side of the tape is used for traditional linear distance measurements. The tool's base includes a "vertical" bubble level and the arm includes a "horizontal" bubble level to perform some of the above functions.

An adjustable carpenter's square for the quick and reproducible measurement of angles and radii. The adjustable carpenter's square includes a center bar that includes a set of indicia. The indicia are any appropriate set of graduations, which may include numerical notations. A indicator slide is receivable onto the center bar. The indicator slide includes a first and second slide strut pivot. A first and second strut attach to the indicator slide. A first wing attaches to the center bar and the first strut. The first wing also includes a first wing strut pivot. The first wing strut pivot hingably connects the first wing to the first strut. The first wing strut pivot attaches to the first strut. A second wing attaches to the center bar and the second strut. The second wing includes a second wing strut pivot. The second wing strut pivot hingably connects the second wing to the second strut. The first and second wings pivotably connect to the center bar. The indicator slide connects to the first and second struts. A measured relation is formed between the first wing with the second wing. The position of the indicator slide on the center bar is relatable to the measured relation by way of the set of indicia displayed on the center bar. The measured relation can include such values as: angles, pitches, radii, diameters, distances, segments, arcs and chords.

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. Multiple successive bend-planes also may be established without removing or re-aligning the guide on the pipe, by rotating the gauge section of the guide relative to the mounting section by the magnitude of the desired out-of-plane angle.

The invention is a snap locking angle adjustable device, particularly applicable to carpenter's squares. Carpenter's squares, being used in rough environment, must be simple to adjust while providing robust snap locking at high angle precision. Prior art attains this by protruding steel balls, attached around the pivot axis of the square's handle, pressed strongly against a hole punched area around the pivot axis of the square's blade-balls aligns to holes gives the snap locking. The problem is to simplify manufacturing. The invention comprises components with moulded alignment structures. These components are the complete pivot members (handle or blade) themselves, or are separately attached to the pivot members. The components, and optionally, are sandwiched, alignment structures against each other, and axially pressed together strongly by a spring held in compression by a press frame that also may constitute a pivot shaft for the pivot members.

The invention relates to a angle measuring device measuring the tightening angle of an operation tool for tightening screwed connections. The angle measuring device is releasabley mounted to the operating tool.

In a rail track system having transition points, a locomotive having a navigation system (such as a combined inertial/GPS location system) moves along an initially known track and enters the “halo” surrounding a track transition to begin data collection/logging to accumulate successive position information data points as the locomotive moves into, progresses through, and exits the “halo.” The collected data for movement within the “halo” is then subject to a best fit assessment relative to the data pre-stored in the track database.

A method for measuring the pitch angle of a wind turbine rotor blade is provided. In the method at least one image of at least part of the rotor blade is acquired by a camera from a defined position and the pitch angle is calculated by means of data from the at least one image.

A knee joint flexure progression meter and system. The knee joint flexure meter has an elongated progression meter bar with a major axis, an upper surface, a lower surface having a longitudinal recess therein, and a plurality of spaced apart indicia disposed on the upper surface thereof. A crossbar is disposed perpendicularly to the progression meter bar major axis. The crossbar is both adjustable and removable with respect to the progression meter bar. The crossbar is dimensioned smaller than the recess in the progression meter bar, so that the crossbar can be contained within the recess. A mechanism is provided for containing the crossbar within the progression meter bar for transportation or temporary storage.

A miter cutting guide apparatus is provided to aid in the making of miter cuts used on wood millwork as trim around floors, walls, doors, cabinets and the like and which can also be used on ceramics such as for tile cutting. Two miter arms are pivotally attached by a pivot locking means such as a screw. Each miter arm has a complementary base resting underneath and being guidably received by each miter arm, thereby allowing each miter arm to reciprocate along its complementary base.