Abstract: An apparatus for locating the hanging hardware of a picture on a wall, includes a rectanglar block having an inverted "V" shaped slot on a rear surface thereof for receiving a mounting wire or string. The block further includes a blunt protrusion located directly below the point of the "V" for marking a wall. A "U" shaped member connected by a spring to the block is provided for receiving the top portion of the frame.

Abstract: A servo system includes a driven body (C), a hydraulic driving unit (A) for moving the driven body (C), a mechanical hydraulic servo valve (1), a sheave (31), a flexible measuring tape (33), a rotary driving source (M) and an adjusting unit (4,5,6,7). The servo valve (1) includes a spring-biased movable spool (11) and can activate the driving unit (A) to move the driven body (C) when the spool (11) is moved. The sheave (31) is mounted on the driven body (C) and has an outer peripheral surface. The measuring tape (33) has a first end portion secured to the sheave (31), a second end portion (331), and an intermediate portion wound on the sheave (31) along the outer peripheral surface of the sheave (31). The rotary driving source (M) is coupled operably to the sheave (31) and is operable to rotate the sheave (31) in order to wind and unwind the measuring tape (33).

Abstract: A level tool with laser light alignment capabilities including a straight rigid first rail having a leveling vial coupled thereto; a laser light source coupled to the first rail and with the laser light source transmitting a laser beam that is longitudinally aligned with the first rail to a remote location for use in alignment operations; and an electrical power supply coupled to the first rail for providing electrical energy to the laser light source for operation.

Abstract: An integral resistive angle measurement device employs a printed circuit board having electronic components mounted on the front surface thereof and having a pair of sensor plates etched into the back surface thereof and a metallic web mounted between the pair of sensor plates on the back surface of the printed circuit board. Containment of the resistive sensor fluid adjacent the sensor plates is accomplished by soldering a sensor cover to an etched sealing ring on the back of the circuit board. The sensor plates etched into the back of the printed circuit board, in combination with the sensor fluid, act as variable resistors whose resistance changes as a function of their angle of rotation from a reference position. An output signal across these variable resistors is in or out of phase with an applied reference signal. The output signal is demodulated with the same reference signal and then filtered to a DC level that corresponds to the angle of rotation.

Abstract: A target for use in automatic positioning systems that allows the automatic positioning system to align an edge in the pattern laid down with the target on a substrate with an edge in the pattern on a mask. The target compensates for variations in the size of the target and the target's associated pattern due to process variations in forming the target from an initial mask having the target and pattern. The target is symmetrical about a first axis and asymmetrical about a second axis where the first and second axes are orthogonal to each other. The target has two edges that will be detected by a sensing device in the automatic positioning system when the target is scanned along one axis and one edge that will be detected by the sensing device when the target is scanned along the other axis. The positioning system will detect the center of the target as being in the middle of the location of the two detected edges in one axis and the location of the detected edge in the other axis.

Abstract: A device for measuring the length and weight of an infant. The device includes a tray into which the infant is placed. The tray is located on a scale that is used to determine the infant's weight. A length measuring device is located adjacent the tray and includes a wand that extends into the tray and moves slidably along the length of the tray. An infant is placed within the tray so that the head of the infant is adjacent one end of the tray. The wand then slidably moves toward the infant until it contacts the sole of the infant's foot at which time a length measurement is taken. The length measuring device includes a breakaway switch and a rocker switch that stops the movement of the wand if it contacts the infant or another obstruction.

Abstract: A device for aiding in the cross-hair alignment of the reticle of a gun-mounted telescopic sight wherein the gun includes at least one scope base for securing the telescopic sight. The device includes a light source for projecting a beam of light against a surface. The light source is mounted to the scope base of the gun. The projected light beam is modified to form a reference line which may be viewed through the telescopic sight. The projected reference line is automatically aligned with the barrel axis of the gun. One of the cross-hairs of the reticle of the telescopic sight may be compared with the aligned projected reference line and adjusted accordingly to align the cross-hairs with the barrel axis of the gun.

Abstract: A jig for installing spindles has a base member, a jig alignment guide attached to the base member, and a spindle alignment guide secured to the base member. The spindle alignment guide is shaped to align an unsecured spindle in parallel relation to an adjacent spindle at a predetermined distance from the adjacent spindle while simultaneously positioning the unsecured spindle at a desired height in relation to a reference surface.

Abstract: A hand held gauge for accurately measuring the circumference of conductors especially conductor cables with multiple strands, for indicating correct connector size for the conductor, and for aiding in the assembly of a bare conductor end into a connector sleeve.

Abstract: A device to measure round objects, especially threaded objects is shown where three cam surfaces located on the interior of an annular ring are contacted by rollers which are advanced or retracted as a cam surface is traversed. The traverse of the cam surface allows change in diameter formed by the rollers and by locking the cam position, a fixed gauge is formed. The rollers directly contact the part to be measured. As applied to thread measurement, the three point gauge uses annular rollers to measure properties of thread fit and use when the rollers have the threads slightly offset from each other to make a pitch test set. The device allows a single gauge to handle at least 12 normal go and no-go gauging functions with just change of rollers for various fit and pitch classes. The gauge also is settable at special sizes near a standard size due to a range of adjustment.

Abstract: A scribe tool includes an elongated horizontal support member with connector plates at each end adapted for attachment to the block end of a transmission housing. An elongated strap is pivotally connected to the center of the support member for pivotal movement through a vertical plane parallel to the support member. A scribe arm on the upper end of the strap includes a forward leg with a pointed lower end for scribing a material, and a rearward leg slidably journaled in a sleeve on the upper end of the strap to permit radial movement of the scribe arm relative to the pivotal axis of the strap, and also permit pivotal movement of the scribe arm with the strap. The sleeve has a truncated cylindrical aperture therethrough for receiving the base leg which matches the shape of the base leg, to prevent rotational movement of the base leg while permitting radial movement of the scribe arm.

Abstract: An image board comprising a base layer of aluminum, a filler layer of an amorphous polyester film such as Kodar.RTM. PETG copolyester film extrusion, two intermediate layers of polyester film such as Mylar.RTM., two intermediate layers of a low molecular weight polymer such as Melanex-T.RTM., and a bed layer of a rigid acrylic/PVC thermoplastic sheet having a top surface defining a level hair-line cell structure. The thickness of the image board is decreased compared with prior art image boards, to within a range of approximately 0.126"-0.131" at a minimum to approximately 0.171" at a maximum. The image board exhibits enhanced characteristics of stability, flexibility, and resistance to differential thermal expansion. A compressible register pin is selectively mounted on and removed from the reverse side of the image board, being slidably inserted and frictionally engaged in an aperture and contacting the base and intermediate layers.

Abstract: An encapsulated measuring apparatus for determining the relative position of two objects is disclosed which comprises a measurement embodiment, a probing means, a hollow member, a seal, an entrainment member, an installation pedestal and at least one additional seal, wherein the measurement embodiment, together with the probing component probing same, is placed into the hollow member, which is closed by means of the seal through which passes the entrainment member which connects the probing component with an object to be measured. The entrainment member is connected, with the installation pedestal. A space between the hollow member and the installation pedestal is shielded against harmful effects from the surroundings by the at least one additional seal. The at least one additional seal is effective outside of a region where the entrainment member passes through its corresponding seal.

Abstract: Apparatus for cutting tiles or similar items to size comprises a measuring device having first and second measuring members which are movable towards and away from each other to set a required size to which a tile is to be cut, a cutting device comprising a base, a cutter, and a guide for guiding movement of the cutter along a defined path across the base, and a formation on the base to receive the first measuring member of the measuring device and to position the same in alignment with the defined path, whereby a tile placed in edge contact with the second measuring member of the measuring device is automatically positioned for cutting substantially to the required size by the cutter. The formation preferably comprises a recess in the base, such that when received in the recess an upper surface of the first measuring member lies substantially flush with an upper surface of the base.

Abstract: A sound indicative leveling apparatus comprising an arcuate leveling tube having free and sealed ends extended upwards; a coupling mechanism for securing an external object to be leveled above or below the leveling tube; leveling circuitry further comprising a power source for supplying electrical energy; oscillation circuitry coupled to the power source and adapted to be keyed by an oscillation activation signal for generating speaker activation signals at given frequencies; a speaker coupled to the oscillation circuitry for generating audible tones upon receipt of the speaker activation signals; a switch mechanism disposed along the leveling tube and extended therein and coupled between the oscillator circuitry and the power source; and liquid conductive material disposed within the leveling tube of an amount to electrically engage the switch mechanism based upon leveling tube orientation and thereby generate an oscillator activation signal.

Abstract: A modular system for the support and positioning of a workpiece for use with a device such as an inspection system. The system includes a base having a plurality of exterior faces, at least some of which have an array of equally spaced holes forming a grid pattern. At least one riser is attached to the base cube by a fastener, which can be inserted into the riser by defeating an outwardly biased locking member at the inner end of the fastener, extending through said riser and into the holes of the base cube. The fastener is used to provide positive location and fastening of the risers to the base cube. Functions of individual risers include support, clamping, datum point positioning and providing reference points.

Abstract: A device for determining the orientation of a vehicle includes a magnetic field sensor (3) which is arranged in the vicinity of a ferromagnetic outer wall of the body of the vehicle and which is rigidly connected to the wall. External magnetic fields could unpredictably magnetize the wall portion (1) of the body, in the vicinity of which the magnetic field sensor (3) is provided, so that the measurements would become inaccurate. In order to achieve a substantial reduction of these adverse effects of external magnetic fields, the relevant wall portion is magnetically stabilized, preferably by including it in a magnetic circuit which also includes at least a magnet (11; 23, 27).

Abstract: A line block masonry alignment system comprising at least two rigid and generally U-shaped line blocks, each line block having a short leg, a long leg, and a cross-leg therebetween and with the line block defining a holding space for receipt of a door buck, each leg having a generally rectangular cross-section, the cross leg having a length equal to that of the long leg, the cross leg further having a longitudinal groove formed along its peripheral extent at a location remote from the holding space and with the groove projected through both the long leg and short leg, the short leg having an axial bore formed therethrough with the bore in communication with the groove and with the groove and bore of each line block adapted to hold and retain an end of a plumb line therein for facilitating the construction of a level course of masonry.

Abstract: A method and apparatus for measuring scour depth in a waterway bed is described. The apparatus utilizes magnetic attraction between a weight resting on the waterway bed and a magnetic probe within a guide chamber to which the weight is attached. Magnetic attraction between the probe and the weight retains the probe in an aligned position with the weight, enabling a user to detect a reduced force in the support line to identify the location of the weight and thus the riverbed. In a second embodiment, the inventive device includes a second weight slidably attached to the guide enabling a measurement of infill in a waterway bed scour. In the method according to the invention, the weight is placed upon the waterway bed and allowed to rest there. A probe is then inserted into the chamber and allowed to descend to the level of the weight where magnetic attraction supports the probe.

Abstract: The present rolling ruler includes a ruler body having a through hole, a shall having two ends and sleeving thereon the ruler body, and two rollers respectively mounted on the two ends for translating the ruler body. One characteristic of present invention is that different scales are provided on edges of a ruler body.