Abstract: An electro-mechanical gaging apparatus and method for measuring the diameter of gundrill bits that have been pointed and the cylindrical surface areas relieved to leave only the margin and the wear pad on the circumference. A V-block of about 100 degrees is used in combination with a dual segmented clamp and a gage probe for generating electrical signals which provide the necessary inputs for trigonometric calculation, e.g. by an electrical microprocessor, thereby providing the desired diameter measurement.

Abstract: There is disclosed in the present application, a gage particularly adapted to measuring the effective interior diameter of a workpiece or part which is too flexible to be measured at separated points of its internal diameter. Such parts, which may be of metal or plastic, include thin walled containers, the skins of cylindrical drums or shields and similar articles which have interior diameters designed to be closely fitted to rigid frames at assembly. The present gage is formed to restrain the part against distortion by forces incident to measuring, which would otherwise cause the part to become narrower in the direction perpendicular to that of the measuring force and would be the source of substantial error in gaging the effective interior dimension of the undistorted part for purposes of assembly. In addition, the present gage includes a provision for automatically translating the circumference measurement of the part into the effective diameter of the part in undistorted condition.

Abstract: A system is provided for rapidly determining the flatness of a rolled sheet of aluminum which comprises placing a ruled lightweight flat bar across the sheet with portions of the bar in contact with adjacent high points on said sheet and measuring the distance between the high points. The height is then measured by inserting, between the bar and the lowest point on the sheet between the high points, a gauge having continuous measuring means comprising a conically shaped device tapering to a point. The gauge is inserted until both surfaces are in contact with the conical device. The thickness of the conical gauge is then measured at the point of contact to determine the distance between the surfaces.

Abstract: A measuring device for long-term installation in a bore in a rock formation or detecting gradual changes in bore diameter, especially gradual constriction which might affect the condition of radioactive waste deposited in the bore, utilizes telescoping parts under outward spring pressure. One of the two elements of the transducer which by the relative displacement of these elements measures changes in diameter, is a rod held in a friction mounting on one of the telescoping parts that maintains the position of the device in the bore. The other element of the transducer is fixed on the other telescoping part which also carries limit stops (7,8) which in corporation with a stop (6) on the rod confines the lengthwise movement of the rod to a stroke equal to the maximum measuring range of the transducer. For measuring gradual constriction, the transducer is automatically set to begin with the maximum measureable diameter.

Abstract: A gauging head for checking linear dimensions of mechanical parts comprising a substantially cylindrical casing, a stem partially arranged for sliding movement within the casing, a feeler coupled to an end of the stem external with respect to the casing for touching the part, a transducer for providing a measurement signal and a cable for connecting the transducer to an external electric unit. An additional element can be removably and adjustably coupled to the casing for limiting the pre-stroke of the stem and another additional element can be removably coupled to the casing for defining the direction of exit of the cable from the gauging head.

Abstract: An arrangement for mounting measuring devices of axle measurement equipment with a fastening plate that is adapted to be installed at the vehicle wheel aligned parallel to a flat reference surface of the vehicle axle by means of abutment pins extending through the wheel disk by way of through-openings. An incorrect alignment of the plane of the fastening plate which causes an incorrect adjustment of camber, toe-in or caster, is avoided with a completely satisfactory abutment of all abutment pins at the reference surface.

Abstract: In a co-ordinate measuring machine a probe is connected to the head of the machine by a pivotal arm, and the orientation of the probe is changed by moving the head so that the arm engages a fixed structure and a moment is applied to the arm which is thereby caused to turn and present the probe in the required orientation.

Abstract: An improved ellipsograph for drawing ellipses, ovoids and circles comprises a frame, a slide block, a disc, a worm wheel, a pivot adjusting block, a stub adjusting block, a motor, a battery holder and a drawing arm. The disc and the worm are screwed together and fitted in the round opening of the slide block. The pivot adjusting block and the stub adjusting block are fitted respectively in the worm wheel and the disc. When the motor is started the screw shaft will cause the worm wheel to turn and the pivot on the pivot adjusting block will circumambulate with the worm wheel. At the same time, the stub on the stub adjusting block fitted in the slot of the frame will roll along the slot due to the tangential force of the worm wheel and cause the slide block with the worm wheel and the disc as a whole to move straightly back and forth.

Abstract: Disclosed is a solid depicting method which comprises obliquely disposing a semi-transparent mirror between a solid to be depicted and the position of observation by two eyes, disposing recording paper across the virtual image of the solid formed by means of the semi-transparent mirror, moving the virtual image relative to the recording paper in a direction perpendicular to the recording paper, and tracing the locus of the point of intersection between the surface of the virtual image of the solid and the recording paper.

Abstract: Cases (covers) for binding books are made in a series of sizes which differ from each other in the width of the spine and each size accommodates a range of book cores. The gauge of the present invention indicates which size case is proper and further measures the precise thickness of the core. Simultaneously, the gauge moves an edge guide of a positioning guide so that the core is located accurately centered relative to the spine area of the case and the case is also located relative to the guide.

Abstract: The elevator type gage assembly has a plurality of vertically spaced support members, that can be secured to an associated gage, each of which has a gage template operatively positioned therein and wherein a vertically extending support rod is secured to and extends between a pair of the support members and it has an indicator sleeve bracket rotatably and vertically slidably engaged therewith which bracket has a portion for engaging a laterally outer end of a support member to aid in adjusting the gage while an indicator is operatively secured to the indicator sleeve bracket; a contact arm is pivotally carried by the indicator sleeve bracket with an end portion for engaging a laterally outer end of a gage template and a second end portion to engage the indicator operating pin to provide a reading on the indicator of the position of the slide template in the associated gage.

Abstract: A scriber arm mounted to two synchronized cranks, one of which defines the minor axis of the ellipse while the other defines the major axis.

Abstract: An archery bow signt including an extension bar, sight bar, carriage, sight-supporting block, and bubble level wherein the improvement is directed to an arrangement for pivotally adjusting one of the sight members relative to another. In the preferred embodiment, the member to be adjusted is mounted to an underlying, second member by two bolts or screws which ordinarily lock the two members together. In operation to make an adjustment, the locking screws are first loosened wherein one of the screws is then used to define the pivotal axis about which the adjustment is made. To do this, the shaft of the second screw is received in an elongated slot in the member to be adjusted and as this member is pivoted, the elongated slot therein accommodates the relative movement of the second screw. The fine adjustment of the two members is then accomplished by manipulation of only a single set screw which contacts the shaft of the second screw and works against a coil spring.

Abstract: A null-adjusting tool for aligning a tilt sensor of the electrolytic liquid type to the vertical is provided. A sensor mounting plate with a tilt-sensing element attached thereto is rotated about a pivot pin by the rotation of a coarse and fine adjustment screw. The coarse adjustment screw acts directly on the sensor mounting plate. The fine adjustment screw provides a high degree of position resolution control through a combination of screw thread and lever type mechanical advantage. A digital readout containing a liquid crystal display and self-contained power source is mounted on the null-adjusting tool to provide a visual indication of the angular deviation of the tilt sensor from the vertical during the alignment process.

Abstract: A compass type instrument capable of describing curves, circles and ellipses of infinitely variable angle and size. The central column of the instrument is supported on a foot that aligns the instrument with the center of the desired ellipse and maintains the instrument still and perpendicular to the surface to be marked. Removably mounted on the central column is a circular cam that is hinged symmetrically along it's diameter. Non-circular symmetrically hinged shapes may be substituted to alter the curve. The extent that this cam is folded about itself is adjustable and determines the angle of the ellipse described. An articulated follower arm is adjustably mounted to the top of the central column. About the central column rotates the upper section of the follower arm that pivots at a point variable from the center of the column. The upper follower arm is spring loaded in order to keep contact with the cam.

Abstract: A gauge for measuring the clearance between the bottom surface of the body side bearings of a rail car and the subjacent top surface of the respective truck side bearing rollers includes a central vertical frame and a horizontal cross beam carrying on each of its outer extremities a vertically movable graduated blade. Telescoping arms on opposite ends of the cross beam enable the gauge to be used on different kinds and sizes of rail cars and cabooses; and a missing side bearing adapter is provided so that gauging can proceed even though either or both of the side bearings are missing. For truck plant and body plant use special indicia are provided.

Abstract: A relative-distance pickup, includes a housing, a spring disposed in the housing, a feeler tip disposed in the housing and movable in longitudinal direction of the housing against the spring, an indicating device for registering relative motion of the feeler tip with respect to the housing, the feeler tip being subdivided transversely to the longitudinal direction of the housing forming first and second feeler tip parts, the second part having a stop, the first part being connected to the indicating device and the first part having a remote control drive for moving the first part against the stop.

Abstract: A right-angle index device comprising two unextensible tapes having hook means at one free end, a first mechanism for withdrawing said both tapes by the same length under controlled conditions, a second mechanism for stopping said first mechanism to fix the length of said both tapes at the desired value, a take-up mechanism for rolling up said both tapes through said first and second mechanisms, to which the other ends of said both tapes are fixed, and casing means for accommodating therein said first and second mechanisms and said take-up mechanism and allowing said both tapes to be rolled around said take-up mechanism for withdrawal.

Abstract: An aligning system for aligning a first object and second object with each other by moving them as a unit through a fluid bearing is adapted to accomplish a coarse alignment by displacing the first and second objects relative to each other and to attain a fine alignment by controlling the supply of pressure to the fluid bearing.

Abstract: A pitch measuring device for measuring the deviation of one line or plane from a referenced line or plane. The device comprises a pitch vial including a cavity containing a liquid and a bubble hermetically sealed therein. Indicia, pre-calibrated to the axis of the vial body, are applied to the vial body to provide a visual display of the amount of pitch of a measured surface by reference to bubble position in the vial cavity in relation to the body indicia. The vial cavity is symmetrically disposed about the vial axis with a larger radius at one end than at the other of the vial to provide pre-selected bubble orientation in response to selected pitch conditions.