Abstract:
A nominally cylindrical surface of a workpiece is sensed by a stylus displaceable radially of an axis of rotation of the surface relative to a support column defining a reference datum so that the stylus follows the cylindrical surface at a given height along the surface. Relative rotation of the workpiece and the stylus about the axis of rotation of the surface is effected and the displacement of the stylus used to determine information relating to the radial form of the surface at that height. These measurements are represented at different heights along the surface so as to determine its cylindrical form. The displacement of the stylus from a given position on the surface at each height before and after rotation of the stylus and workpiece through 180° are measured and the resulting measurements used to compensate for any error or deviation in the reference datum.
Abstract:
An adjustable gage comprises a centerline hub and a swing gage. The hub includes a body with position jaws adjustably attached thereto, and a central post. The gage comprises a pair of parallel slide bars and front and rear blocks slidable along the slide bars. A movable, spring-biased probe is slidably connected to the front block via a rail and carriage bearing apparatus. The probe is operably connected to a probe-movement indicator. The rear block has a fixed probe. Both probes have end roller bearings. In use, the part to be measured is placed within the position jaws, previously adjusted to the approximate inner or outer diameter of the part. Then, the gage is placed over the post, with the roller bearings coming into contact with the part, and the gage is rotated. The probes track along the part, with any variances in part diameter showing up on the indicator.
Abstract:
This invention is a hand held apparatus used to measure the hardness, or compressibility, of a golf ball and also the sphericity, or roundness, of the ball. The apparatus is small enough to be carried in the typical golf bag and easily fits in the normal hand, thus enabling the user to use the apparatus anywhere. A golf ball is inserted into the apparatus and the ball is automatically centered between two opposing plates. One plate is attached to a calibrated spring while the other plate is attached to a screw, which will be used to drive the associated plate against the ball. The screw will be hand turned until a sensing mechanism will be actuated and thus indicate to the user to stop turning. Each ball being tested will be subjected to the same force and therefore compressed an amount determined by it's own hardness. The amount the ball is compressed is related to the commonly accepted ratings found on today's golf balls and the user will be able to read a compression rating directly from a scale located on the body of the apparatus. This invention will also provide capability to measure the diameter of the ball. By measuring the diameter on several axes, the sphericity of the ball can be determined. Obviously, a ball that is sufficiently “out of round” will not fly true.
Abstract:
An electronic three-probe measuring system with both compact structure, light and small, and spacial method, which views the dimensional changes in the measuring roundness error step to contain both roundness error and vibration for accurately measuring roundness error, concentricity, crown, shape, taper, sag and vibration of cylindrical rolls used in flat rolled product mills.
Abstract:
A measuring arrangement for form measurement of cylinders, comprises a measuring arm insertable into a cylinder space, a measuring sensor which is guided by the measuring arm, movable translatorily in the direction of a longitudinal axis of the measuring arm and driveable independently of the measuring arm in a circumferential direction, a sensing pin which is displaceable radially and along an axis of the measuring sensor and arranged for sensing a geometry of walls of cylinders, a driving arm which is movable translatorily and rotatably and having an end, the measuring arm being formed as a thin sensing body which is in operative connection with the end of the driving arm, formed bending-resistant, and extends parallel to the driving arm, the sensing body having an end which is spaced from the driving arm and carries the measuring sensor, and the measuring sensor being provided with the sensing pin.
Abstract:
Apparatus for gauging the alignment of a multiplicity of bearing seats lying along a common reference axis comprising an elongated shaft, first and second bearings for rotatably journaling the shaft in a pair of reference bearing seats, a radial distance indicator mechanism coupled to a collar slidably mounted on the shaft, and a means to contact the radial distance indicator mechanism to selected bearing seats. When the shaft is rotated with the radial distance indicator mechanism in contact with the bearing seat, eccentricity of a selected bearing seat can be determined with respect to the reference axis.
Abstract:
The device has a base mounting a support which constantly contacts the surface of an object being measured, the object having a nominally circular cross-section. The support is a plurality of essentially self-adjusting balance beams arranged in steps or in a staggered order. The swing axles of the balance beams of a first step are secured to the base, while the swing axles of the balance beams of a subsequent step are secured to the ends of the balance beams of a preceding step. The balance beams of a last-in-succession step contact the profile of the cross-section of the object being measured. The central angles at which the balance beams are mounted are chosen on the basis of a condition of maximal stabilization of the position of the center of the profile of the cross-section of the object being measured relative to the base in the direction of the disposition of a sensing element of a displacement transducer secured to the base.