Abstract: The control device according to the invention comprises three controlling elements secured to a structure or frame and each comprising a fixed guide, a movable tubular socket and a feeler rod or probe connected to a core of a displacement sensor of which the body is integral with the tubular socket, the tubular socket and the rod being applied by springs against G2 and the cathode respectively.

Abstract: In a length measuring apparatus for measuring the relative position of two objects movable relative to each other a scanning unit fastened to the first object scans the graduation of a scale fastened to the second object. The scale is connected to the second object at both ends by means of two fastening elements. Each fastening element has a length compensation element allowing translatory movement of bearings at the ends of the scale in the measuring direction. The fixing of a reference point on the scale with respect to the second object is accomplished by means of a fixing element which renders one of the length compensation elements ineffective in its functioning.

Abstract: A tool (10) is used for detecting whether material (14) on a reference surface (12) has exceeded a predetermined height. The tool (10) includes a housing (32) having a bottom surface with at least one opening (34) therein for receiving the material (14) whose height is to be tested. A probe means (44) is slideably mounted within the housing (32) and has one end located in the opening (34) for contacting the material (14). A circuit (18, 22) includes a pair of contacts (30) spaced a given distance from a predetermined portion of the probe (44). An indicator (66) is coupled to the circuit for signaling that the height of the material (14) exceeds the predetermined height when the probe (44) slide a sufficient distance so that the portion thereof closes the contacts (30).

Abstract: A coplanarity tester for surface mounted devices is disclosed. The coplanarity tester provides an electromechanical means and method for assuring the coplanarity of surface mounted devices to be within any given specification. The tester measures the coplanarity of a surface mounted device where the plane is defined by the three longest leads of that device. The present invention provides an indication of whether a surface mounted device has coplanarity within a predetermined thickness. The present invention can be utilized with any surface mounted device such as a gull-wing or j-bend type device.

Abstract: An angle guide device has a pair of arm members which are adjustable through a range of angles to engage adjacent edges at the corner of a piece of mat board. The device is adapted for mounting upon a triangular guide member in a mat cutting machine, and to be secured in each of a multiplicity of positions along the length of the guide member.

Abstract: A caliber bar for locating the centerline of the bore at the muzzle of a gun including a frame, first and second trunnion housings axially mounted on the frame, each of the trunnion housings pivotally mounting three centering arms circumferentially spaced at 120.degree. from each other for contacting the side of a bore at axially spaced locations, and first and second liquid springs mounted on the first and second trunnion housings, respectively, for biasing the centering arms associated with each trunnion housing simultaneously outwardly equal amounts into engagement with the side of the bore, and detents for removably holding the first and second trunnion housings in the frame.

Abstract: The disclosed guide, or square, has an elongated planar body, and a planar cross bar angled normal off one end edge of the elongated body, somewhat in the configuration of a "T". One end of the cross bar projects away from the elongated body only a short distance, of the order of 1/4 to 5/8 of an inch; while the other end of the cross bar projects a much greater distance from the elongated body, of the order of 11/8 to 11/4 of an inch, to correspond generally in length to the width of the narrow side of a standard framing member or stud. Correspoding side edges of the elongated body and cross member lie in a common plane disposed normal to the corner intersection between the elongated member and cross bar. With the elongated body positioned against the wide side of the stud, and the extended cross bar end squared against one narrow side of the stud, the cross bar end projects virtually across the one narrow side of the stud.

Abstract: A device for ascertaining the camber and caster positions of vehicle front wheels including a base frame having a depending plate freely pivotal on an axis normal to the base frame and a depending pointer freely pivoted to the plate on an axis normal to the first axis. A scale is adjustably mounted on the lower end of the plate and a lock is provided on the base frame for securing the plate from pivotal movement while not in use. The outer ends of the base frame are provided with extension plates for engaging the side of relatively small wheels, and flange members are removably mounted on the extension plates for engaging a wheel rim of relatively large wheels. A handle is connected to the base frame so that the device may be manually placed against the vehicle wheel.

Abstract: A biplane goniometer including a platform having a first planar surface thereon. An indicia mark on the side of the platform is disposed in plane parallel to the first planar surface. A flexible, stable arm is pivotally attached to the platform and the stable arm is disposed in a plane substantially perpendicular to the first planar surface. The stable arm has a reference line disposed longitudinally thereon. Measuring data, including calibrated numbers, is disposed on the stable arm in an arc about the axis for measuring the arc between the indicia mark on the platform and the reference line on the stable arm.

Abstract: A correction apparatus for an azimuth calculation system which includes an azimuth sensor mounted on a moving body for producing two mutually perpendicular magnetic field components relative to the earth's magnetism acting thereon, and wherein the azimuth sensor is moved in a full circle so that an azimuth circle is formed by the two magnetic field components.

Abstract: A layout designating sheet is placed on a layout designating sheet receiving panel and light is emitted from one side thereof to illuminate illustrations provided on the layout designating sheet on to an original receiving panel overlapped there on. Being overlapped with illuminated illustrations of the layout designating sheet, angles of originals corresponding to the illustrations are adjusted on the original receiving panel. Angle data marks are applied by angle data mark supply guide means to the angle-adjusted originals or to auxiliary sheets adhered to the originals. With reference to the angle data marks, the originals are adhered to a cylinder of an input scanner. Thus, the originals can be quickly adhered to the cylinder of the input scanner at required angles.

Abstract: Deviations in flatness on a horizontal surface are measured by running over the surface, at a constant driven speed, an instrument sensitive to slope and which generates a continuous voltage signal corresponding to a continuous slope measurement. The continuous voltage signal is filtered to remove extraneous high frequency voltage signals thereby to produce raw continuous analog slope data which is digitized and calibrated to provide calibrated digital slope data from which other flatness data is computed. Procedures are described for calibrating the instrument and for eliminating or compensating for distortions in the measurements.

Abstract: A device for measuring the periphery of the kinescope panels of various sizes includes an elongated measuring member for each panel size. A gauge is associated with each elongated measuring member and is set to zero to get an optimum peripheral measurement. The elongated measuring member is tensioned about the panel and the gauge reading is the difference between the actual panel periphery and the optimum panel periphery.

Abstract: A method for orienting a feeler of an apparatus for testing gear flank profiles and flank lines of gear wheels is disclosed, in which the feeler is successively inserted, in two adjacent positions, into an accurately made gap element located on the gear wheel and from the thus ascertained values the location of the point of intersection of the wheel axis with the measuring plane is ascertained, optionally by means of a computer. The gap element, embodied as an orientation gap mounted on the gear wheel, that is approached by the feeler in the first position is rotated with the gear wheel into a second position, and there the feeler, embodied solely by the measuring feeler, is inserted into the same orientation gap. Therefore measurements are made by use of the same orientation gap and the same feeler at two different locations.

Abstract: The probe has a piezo-electric sensor (22A) for determining initial contact of a stylus (16) with a workpiece (4). It also has a kinematic support (18) made up of confronting electrical contacts (19, 20) which are connected to indicate displacement of the stylus from a rest position and correct reseating on the kinematic support. The sensor (22A) and the electrical contacts (19, 20) are connected to an electrical circuit (24) within the probe. The circuit (24) has only two terminals connecting it to an external interface (9), which both receives the signals from and supplies power to the sensor (22A) and the contacts (19, 20). This enables the receipt of a signal from the contacts (19, 20) to provide a fail-safe backup to the signal from the sensor (22A) and to indicate correct reseating of the probe, while maintaining the interface (9) compatible with prior art probes having only one workpiece-engagement sensing arrangement with two terminals.

Abstract: Apparatus for cutting a plurality of generally parallel channels such as the steps and risers in a stringer for a staircase or the shelves in a book case which includes an elongated first, second, third and fourth members. Each member has first and second ends. The second end of the first member is pivotally connected to the first end of the second member, the second end of the second member is pivotally connected to the first end of the third member, the second end of the third member is pivotally connected to the first end of the fourth member and the second end of the fourth member is pivotally connected to the first end of the first member. The first, second, third and fourth members define a parallelogram with pivotable connections at the respective points of connection of the respective members. The angles intermediate pivotally connected members are adjustable by relative pivotable motion between the respective pivotally connected members.

Abstract: The present invention provides a portable distance measuring device having a housing, a thread measuring member mounted to the housing and a spool of filament in the form of a thread or a thin metal wire which is pulled out of the housing and operates the thread measuring member to provide accurately measured distances. The filament is wound for low resistance unwinding from the spool which is itself fixed against rotation to prevent spool inertia breakage of the filament.

Abstract: The device is intended for an independent measuring apparatus which can be displaced on a measurement plane on which a part to be measured is immobilized. This device comprises a slide which is displaceable along a slideway of the apparatus perpendicular to the measurement plane, a carriage mounted for displacement in said same direction against opposing forces of two springs intended for the applying of a sensing force, and a support bearing a probe which is mounted for displacement on the carriage in a direction perpendicular to that of the vertical slideway. Upon the search for the point of regression of the probe which is necessary for the detection of the two diametrically opposite points of a bore of the part to be measured, the entire apparatus is immobile on the measurement plane and only the feeler support is displaced on the carriage. Automation of the search for the point of regression is also shown.

Abstract: A nylon or metal filament carrying uniformly spaced light-distinguishable scale markings is moved, in taking a measurement, between a light source and a photosensor which reads the scale markings directly and emits a single electrical pulse for each passing scale marking. The extent of movement of the filament corresponds to the magnitude of the physical measurement being taken. Pulses from the photosensor are received by a memory-chip-containing electronic processing counter or calculator for counting, storage calculation, conversion to appropriate measurement units, etc. and a final reading of the measurement taken appears on a digital display. For length measurements, the apparatus is provided with a storage reel for the filament and a reversing switch for rewinding or for reversing the counting element.

Abstract: An instrument for sensing the profile of an elongate tooth of a corrugation roll or gear wheel or the like. A carriage supports an axially movable stem which is operably connected to an indicator element. The stem has an engagement portion which engages a tooth of a corrugation roll as the carriage is moved along the roll. The carriage is provided with runners or slide elements which travel within troughs or valleys, which separate the teeth of the corrugation roll. Preferably, a magnet member is attached to the carriage and is positioned adjacent the surface of the corrugation roll and maintains the position of the carriage with respect to the roll as the carriage is moved along the roll.