Abstract: A gage for marking a cutting line across the lower end portion of a door to facilitate cutting of the door to the proper length to clear carpeting, a threshold or the like. The gage includes an elongated rod which adjustably supports fixturing members having hinge curls adapted to interleave with the curls of the hinge wings on the door jamb and adapted to be attached to the wings by hinge pins. Once the rod has been fixtured, an elongated marking guide on the lower end portion of the rod is adjusted vertically and angularly to a position in which the lower edge of the guide just clears the floor or threshold when the guide is swung about the axis of the rod. After the guide has been locked in its properly adjusted position on the rod, the gage is detached from the door jamb and is placed on the door with the curls of the fixturing members in alinement with curls on the hinge wings of the door.

Abstract: The invention relates to a navigational instrument for automatically controlling the stability of a mobile target, or locating the position of the target with respect to one of several reference planes. The arrangement includes a moving part A whose base G is weighted so that the moving part takes the form of an anchor which pivots about an axis B located on a fixed part fastened to or defined by the moving target. The base G of the moving part has two arms. In an AC embodiment of the invention, the arms are provided with electrically conductive windings and the fixed part includes two electrically conductive windings energized by alternating current. If the fixed part is tilted, one of the windings in the moving part will penetrate the fixed winding to a depth proportional to the tilt angle. At this point, an alternating current, proportional to the tilt angle, will be induced in the winding in the moving part.

Abstract: A spacer for use in aligning and spacing tiles relative to each other, the spacer being cross-shaped, T-shaped, or bar-shaped, with four, three or two arms, respectively, each arm of which, in cross-section, is provided with a lower surface of tapered or contoured configuration to provide a surface in contact with the adhesive on the supporting surface of smaller area than the total arm area. The opposing vertical edges of the arms, which are in contact with the sides of the tiles are narrow in height and, while providing the desired spacing between tiles, provides a narrow area of contact between the arm and the tile to minimize frictional engagement between the abutting surfaces. At the juncture of the arms, there is provided an upwardly extending rod-like projection which serves as a handle to facilitate removal.

Abstract: An instrument for measuring the relative position of two objects comprises a scale with an incremental graduation defining a measuring direction X. A plurality of identical reference marks are positioned along the graduation, each reference mark allocated absolutely to the graduation. To determine the absolute value of a reference mark, two successive spacings between the two reference marks preceding in the measuring direction X are determined. The two spacings are determined by scanning the incremental graduation.

Abstract: A novel multifunctional contour scriber is disclosed for the use in scribing the intersection contour when an arbitrary geometric body intersects a pipe at arbitrary angle. This multifunctional contour scriber can also be used for scribing at any angle a circle, equally spaced points along a circle, an ellipsoid, a hyperbola, a parabola, an inner or outer cycloid, or an involute of a circle, etc. on a plane, a concave or convex surface. The invention consists of a magnetic base, a rotary unit, a hinge unit, a locking unit, a longitudinal rod, a longitudinal rod disc, a transverse rod, a transverse rod disc, guide sleeves, and scribing units. When scribing the intersection contour on the main pipe, the scriber is secured by the magnetic base on the main pipe.

Abstract: A measuring plate (10) supports successive rows of perforation fingers (24i-k) on its upper side, the spacing and diameter of which respectively correspond to the perforations of a postage stamp. By laying .the postage stamp on a row of perforation fingers (22i), the conformity of the postage stamp perforations and measuring perforations can be checked in a tactile manner. The measuring plate (10) is connected by way of a hinge (30 to 34) to a trough-like lid member (12), which can be used for checking water-marks. The measuring plate (10) and lid member (12) together form a flat carrying case for postage stamps.

Abstract: An electronic compass and method. The electronic compass includes circuitry for generating a control signal and circuitry responsive to the control signal for producing reference signals having a frequency established by the control signal. The compass also includes circuitry for phase shifting the reference signals to generate an output signal shifted by a phase shift which is a function of the angle between a reference heading of the compass and the direction of the magnetic flux lines of the earth's magnetic field in a local area. Further, the compass includes circuitry for monitoring the frequency of one of the reference signals, for varying the control signal to thereby cause reference signals having a predetermined frequency, and for measuring the phase shift between the monitored reference signal and the output signal to calculate the angle between the heading of the compass and the direction of the magnetic flux lines of the earth's magnetic field in a local area.

Abstract: An adjustable marking gauge provides an x-y adjustment capability especially adapted to enable conventional drawer and cabinet hardware to be conveniently mounted. The marking gauge includes a body portion in the form of a rectangular block from which an adjustable slide arm projects. The slide arm has a J-shaped end portion and markings which enable distances from the midpoint of the block to be measured easily. An adjustable slide bar is connected to the block and is movable perpendicular relative to the slide arm. The slide bar includes preformed openings corresponding to the dimensions of conventional drawer and cabinet hardware.

Abstract: The invention provides an instrument responsive to acceleration forces. In the preferred embodiment, a body of magnetic material is positioned in a cavity such that it moves to a central position in response to a magnetic field and moves along a preselected path in response to acceleration forces. Means is included permitting the position of the body of magnetic material to be determined. The position of the body of magnetic material relative to the structure of the instrument is an indication of the acceleration force applied to the instrument.

Abstract: A gaging tool for checking the alignment of spaced apart holes located on a common axis, having particular utility for checking the alignment of bearing seats on half round yokes for universal joints. A pair of gage bushings are secured in the bearing seats by retaining straps. An alignment bar is passed through the internal gage bore of one of the bushings. When the bearing seats or holes are in alignment, the alignment bar will pass into the other of the pair of gage bushings.

Abstract: A gauge pin holder including a straight handle with thickened end portions, each end portion having a transverse end slot, a pair of boots adapted to fit in the slots with sideways-directed wings, a passageway in each boot aligned with a pair of bores through each wall forming the slot, and a sleeve in each passageway for receipt of a gauge pin therein, wherein a threaded shaft containing a knurled end knob is threaded through aligned apertures in the handle and boot to force the sleeve and pin down in the passageway and the pin against the wings to hold the pin tightly therein.

Abstract: The measuring apparatus comprises a base plate member including a rotatable measuring object receiving station adapted to rotatably receive e.g. a tool to be measured. Besides the receiving station, a guiding column is arranged having a guiding rail along which a measuring carriage is movable upwardly and downwardly. The carriage is provided with a horizontally displaceable measuring rail, an end portion thereof being equipped with a measuring calliper assembly. This assembly includes a measuring calliper with a calliper head which may be brought into contact with the tool to be measured. The calliper head is displaceable with regard to a calliper portion fixed to the end portion of the measuring rail. A force acting on the calliper head in horizontal direction (e.g. towards the right) causes the same displacement of the calliper head as a force acting on the calliper head in vertical direction (e.g. upwardly). The displacement is determined by means of a measuring gauge.

Abstract: An apparatus for measuring the lateral inclination of a supporting surface comprises a lateral inclination indicator (5) arranged on a vehicle (1). A second indicator (6) delivers information corresponding to the velocity of the vehicle. There are means (6, 7, 8) for delivering information corresponding to the velocity difference between the two laterally displaced wheels. A device (9) is adapted to, on basis of information from the second indicator (6) and said means (6, 7, 8) and information concerning the lateral displacement between the wheels, cause a correction, which corresponds to faults of information from the inclination indicator (5) resulting in consequence of laterally directed forces in curves, and by means of this correction and the information from the inclination indicator deliver an output signal corresponding to the real lateral inclination. (FIG. 1).

Abstract: A fixture for measuring the alignment of a loadwheel with respect to the centerline spindle of a tire uniformity machine. An adaptor block is formed with a conical-shaped recess and an opposed conical-shaped projection which mates with a complementary shaped nose cone and sleeve of a chuck assembly when the block is clamped therein. A bar extending parallel to the aligned centerlines of the block and spindle has a pair of sensors mounted on its ends which register on the uncoated surfaces adjacent the edges of the loadwheel. Readings from the sensors indicate the parallelism of the loadwheel to the spindle. Another sensor can be mounted on the bar and engage the bottom edge of the loadwheel at two locations to determine the squareness of the loadwheel with respect to the spindle. Another sensor can be mounted on the bar to measure the circumferential profile of the coated surface of the loadwheel. The fixture avoids removal of the chuck assembly or the dismantling of other machine components.

Abstract: An apparatus and method for accurately setting a cutting gap of a fiber cutting assembly of the type having a cutter reel with a plurality of radially spaced apart, cutting blades and a presser roll mounted adjacent to the cutter reel and having a peripheral surface positioned at a predetermined distance from the cutting edges of the cutting blades to define the cutting gap. The apparatus comprises a gauge member at one of the cutting blade positions which extends radially beyond the radial distance of the blades and corresponds to the desired cutting gap setting, and means for electrically sensing contact of the gauge member with the presser roll.

Abstract: A linear position index bar is fixed to the frame of a horizontal band saw adjacent the workpiece support table. A linear indexing clamp assembly is mounted to the bar and movable along it to primary indexing locations. A workpiece end locator stop is micrometer mounted to the clamp assembly and associated with a dial indicator for precision indication of positions within a range of one measuring increment of the index bar. Major changes of stock stop position from the saw blade are done by moving the index clamp. Precision positioning is accomplished with a decimal setting knob on the micrometer.

Abstract: The ring-shaped sighting device comprises an annular ring-shaped space the axial height of which decreasing from a window provided in the annular space for observing the level of the liquid to the opposite side. Hence, the uneven bottom forms a displacer for the liquid present in the annular space, so that the volume of this liquid versus its surface can be maintained of a low value on the entire periphery of the annular space. In this way, thermal dilatation of the liquid has no significant importance on the level of the liquid which guarantees an indication largely independent of the temperature.

Abstract: A contact sensing probe is disclosed for use with a measuring machine or machine tool for measuring the dimensions of a workpiece. The probe comprises a housing within which a stylus holder is mounted on a kinematic support. A spring urges the stylus holder into a rest position on the support and yieldingly resists tilting or lifting of the stylus holder from the support when the stylus engages a workpiece. A sensing device in the form of an accelerometer is supported within the housing on the stylus holder to sense one of the effects of stylus engagement with the workpiece, and to produce a signal which is used to stop the machine and read the signal and read the coordinates of the instantaneous stylus position. The effects sensed in different embodiments of the invention are, sudden lifting of the stylus holder due to physical displacement of the stylus, or the shockwave produced in the stylus on contact with the workpiece.

Abstract: A pipeline pig device comprises a longitudinal housing of given length, having adjacent each end a substantially centralizing packer or seal by which pipeline fluids may be used to propel the device. Intermediate the longitudinal housing are a plurality of outwardly extending feeler arms which ride against the pipeline interior. Movement of the feeler arms caused by the pig traversing bends, miters or other deviations from straight, round pipe are transmitted to a recording system which, in combination with odometers, will provide information and/or changes in such bends.

Abstract: For the mounting of measuring scales or straight-edges, they are clamped on balls (2, 6) rollably retained within small regions, which form a lengthwise guide and are fixed relative to their mounting (3) at a single point (5).