Abstract: Method and apparatus for interpolating elevation values and related locations from data provided on drawings by using an instrument with a supporting scale bar on which are mounted two slides that each has an extension arm. In use, the slides are set at the elevation values of the points on the drawing and one of the slides is moved along the scale bar intersecting a graphic scale at various intervals. The movable arm on the slide intersects the line joining the points on the drawing at various intervals.

Abstract: A cylindrical alignment housing is fixed to a housing of one of two axially aligned items of equipment. A cylindrical bearing housing is concentrically positioned around the cylindrical alignment housing, such that the cylindrical bearing housing is rotatably supported at a given position on the cylindrical alignment housing, which is fixed to the housing of the aforesaid one item of equipment. A mechanical coupling is provided between the bearing housing and the shaft of the other of the two equipment items that the bearing housing and the shaft will rotate in concert. A laser is positioned on the rotatable bearing housing and a prism is positioned on the other of the two items of equipment. The cylindrical bearing housing and the shaft of the aforesaid other equipment item are rotated together in concert, and measurements are taken using the laser and prism to determine whether the shafts are properly aligned with each other.

Abstract: A multi-purpose archery accessory-mounting device is disclosed, having a main support base which mounts on the bow by use of standardized mounting means customarily provided on the bow handle, and including an adjustable mounting member which projects forwardly of the bow handle and which incorporates the standardized mounting aperture array which corresponds to the standardized array of mounting screws utilized on standard "flat-type" bow sights. The apparatus further includes a cable guard projecting in a direction opposite that of the bow sight-mounting member, to overlie the cable on a compound bow. Additionally, the apparatus incorporates an integral mount for detachably receiving an arrow quiver of the "bow-mount" type, in a position alongside the bow handle but closer to the archer than the position of the bow sight.

Abstract: A display device for the displaying of two measured values on a graduated dial 1 which has two scales 4 and 5 arranged concentrically to each other. Two pointers 6 and 7 are turnable around pointer shafts 8 and 9 which are coaxial to each other and each of which is associated with a separate scale 5 and 6, each pointer 6 and 7 being adapted to be driven in rotation by separate measurement mechanisms 13 and 14 respectively. The measurement mechanisms 13 and 14 are arranged coaxially to each other on opposite sides of the graduated dial 1 and the ends of the pointer shafts which carry the pointers 6 and 7 face each other.

Abstract: A method is provided for compensating for master gear error in a gear checking apparatus employing a preselected master gear and a fixture for mounting a test gear to be checked in mesh with the master gear. The method comprises mounting a test gear in mesh with the master gear, rotatably driving one of the master and test gears, and producing a test signal corresponding to the differential movement between the master gear and test gear during rotation caused by imperfections or irregularities in both of the gears.

Abstract: A marking and measuring tool has a set of channels in which a bar may be slid. The channels extend from a flat side face adapted to be placed flush against a side of a work piece with one side of each channel extending towards a common line located in the plane of the side face.

Abstract: A Square-Level-Measuring Tool provides a combination of several tools including a tape measure, levels, stud locator and marker, packaged into a single unit. This new tool is light weight, convenient to carry, easy to use and saves time.

Abstract: A galvano-plastically produced graduation carrier comprising fine perforations located within a perforation zone wherein stability enhancement regions in the form of prominences and depressions in the embodiment are located outside the perforation zone. The stability enhancement regions enhance the ability of the graduation carrier to be self-supporting. The area of the graduation carrier within the perforation zone can therefore be made thinner than other areas of the graduation carrier. This provides a graduation carrier which not only has improved edge sharpness and fineness of the perforations but also a high bending rigidity and improved handleability.

Abstract: A substrate to be imprinted with a printed circuit has a pair of locating holes. The substrate is aligned and fixed relative to the drum of a screen printing machine via a pair of aligning and fixing devices each of which has a locating pin receivable in a locating hole. Each of the locating pins is axially divided into two parts which are urged into engagement with one another via a set of springs but can be spread apart against the action of the springs. When the two parts of a pin are in contact with each other, the width or diameter of the pin is substantially smaller than the diameter of the respective locating hole. On the other hand, the width or diameter of each pin in the spread condition equals the diameter of the associated locating hole. The substrate is placed on the aligning and fixing devices while the two parts of each pin engage one another so that the pins can be readily received in the locating holes.

Abstract: An arrangement for measuring the thickness of a continuous material web. The thickness of the material web is measured by pressing from opposite sides of the web, and on the same spot, wheels which can rotate against the web. One wheel is equipped with a conductive surface, and the other wheel has a detecting element which measures the distance from the conductive surface.

Abstract: A method and apparatus for providing a magnetic compass, and system to accurately calibrate the compass with a rotation of the vessel on which the compass is mounted through a single rotation of 360 degrees. The compass comprises gimballed field sensing elements, and processor to provide a signal which is corrected for compass offsets, for permanent magnetic field anomalies and for induced magnetic field anomalies.

Abstract: A housing substantially with a rectangular-box shape containing a flexible measuring tape stored therein and a tape-opening provided on the upper face thereof. An ink box containing ink and an ink thread is provided on the front face of the housing. The outermost end of the ink thread is attached to a needle grip with a needle. A level is provided on the upper face of the housing. A pivotal centering needle is provided on a position of one side face of the housing proximate to the tape-opening. The centering needle is used as a centering arm for a pair of compasses while the measuring tape is used as a cantilever arm for determining the radius of an arc or a circle. A pivotal plate set of the first side face of the housing and a hook member set of the opposite face, together with the ink thread pulled out, provide the function of a plumb rule for determining the vertically of a perpendicular plane.

Abstract: A pair of photographs of the same object taken from different positions and fixed to a single carrying plate the position of which can be adjusted in a first plane. Three measuring devices are associated with the carrying plate for determining the coordinates of the plate to indicate the distance and angle of the plate relative to a fixed reference system. Binocular optical means includes two measuring marks respectively having lines of sight intersecting said two photographs. The lines of sight are parallel to one another and lie in a plane disposed perpendicular to the first plane. One of the marks can be moved relative to the other so that the lines of sight may intersect identical points on the two photographs. A fourth measuring device is provided for measuring the distance between said lines of sight. The outputs from the four measuring devices are fed into a computer for deriving three dimensional quantitative information about the object.

Abstract: The sighting angles to above horizon points in the geostationary satellite orbit around the earth are determined from any known location on the earth with this device.

Abstract: A pipe fitter's tape measuring strip of 25 foot length is marked on one surface thereof with cumulative inch markings along one edge, with information providing take-off charts along the other edge at a leading end of the strip and with cumulative foot and inch markings following the charts along the remainder of the strip length. The opposite surface of the strip is marked with charts providing information of flange sizes related to different pipe sizes.

Abstract: A bore hole navigator utilizing a two axis directional gyro on the inner frame of the navigator and a single axis accelerometer on the outer frame is disclosed. This allows the inner frame of the navigator and thus the entire navigator to be smaller in diameter, both because of the removal of the acceleration axis to the outer gimbal and because the electrolytic level sensor, if used, is much smaller than a single axis accelerometer. The overall smaller diameter is maintained by using a belted design wherein the gyro/electrolytic level sensor, the inner frame torquer/gear and the inner frame resolver are connected in series along the length of the navigator, with a high gear reduction ratio on the inner frame torquer providing a positive drive within a smaller diameter. This configuration, together with unique calculation algorithms allows smaller diameter and deeper holes to be surveyed.

Abstract: A thermostat equipped with a bimetallic element sensitive to a given temperature comprises a monolithic base open at one end in which two terminals connectable to an electric circuit are inserted and precisely located, each having one end bent at a right angle and each carrying a stationary contact, an element carrying movable contacts for connecting the stationary contacts with one another, a spring housed in a seat on said base biasing the movable contact element to engage the stationary contacts, a sliding element for moving and guiding said movable contact-carrying element, a bimetallic element suitably spaced from the said sliding element for initiating movement of the sliding element in response to temperature change, and a lid which fastens the said bimetallic element to the said base with said spacing from the sliding element.

Abstract: A blade setting tool for wood jointer/planer machines includes a jig member which is attached to the horizontal worktable of the machine and which supports a pair of vertically displaceable knife stops which are positioned in the path of rotation of the knife blades. The underside of a portion of the jig is utilized as a gauging surface for balancing the blades. The blade stops are pulled up and out of the path of blade rotation after a blade is balanced, thus permitting subsequent blades to rotate into place for balancing.

Abstract: A high resolution, digital inclinometer having a full 360.degree. linear range with accuracy which is independent of the angle of inclination. The linearity of the inclinometer is essentially flat throughout its range and greatly exceeds analog equivalents. A mathematical model to predict resolution is presented which allows the designer to design the device to maximize resolution at transverse angles. The device can be used in a celestial navigational instrument by storing celestial navigation tables and providing clock and inclination angle information so that the device can be pointed at particular stars and a latitude and longitude calculated. The inclinometer is capable of minimizing effects of pressure and/or temperature which cause microbubbles to form within the supporting fluid.

Abstract: A tire building machine for marking the centerline of a continuous piece of plystock is described as having, (I) a carriage which is movable along a trackway which is normal to the direction of travel of the piece of plystock being marked, (II) a pair of sensors carried by the carriage for monitoring the opposing marginal edges of the piece of plystock, (III) a device centrally disposed on the carriage between the sensors for marking the centerline of the plystock, (IV) a mechanism for adjusting the spacing between the sensors when the width of the plystock varies, and (V) a mechanism for moving the carriage and attached sensors, in unison, along the trackway, when the piece of plystock wanders from the pathway which the sensors are initially set to monitor.