Abstract: A template to aid in the process of making shark's teeth in material. The template is placed over a sheet of material and the apertures and slots are used as a template for marking dots and lines on the material. The lines mark the places on the material which need to be cut in the process of forming shark's teeth. The dots mark the place on the material which will become the point of the shark's teeth so that the material can be tucked at the correct place to produce uniform shark's teeth.

Abstract: An apparatus for holding wires for measuring screw threads by the three wire method includes a body portion and a plurality of wire holder ears in a vertical position, the wire holding ears being responsive to rotational movement and the wire holder ears being limited in the rotational movement by weighted lower base portions provided on the bottom of the wire holder ears. A ledge is provided for holding the screw in position perpendicular to the orientation of the three wires in a position for the pitch diameter of the screw threads to be measured.

Abstract: An apparatus containing four linear gauges (I, II, III and IV) allows simultaneous measurement of the main parameters of a lens blank, namely the vertex radius (or asphericity), the centre thickness, and the front surface sag. A first head member (6) presents contacts (12) which contact the front conicoid surface of a lens blank (101) on a first circle. A measuring head (8) presents contacts (13) on a second circle. Gauges (I and II) measure relative displacements between the contacts (12 and 13) and the end of pointer (3), from which the asphericity or vertex radius can be calculated. Gauges (III and IV) are coupled respectively to the rear and front surfaces of the lens blank (101). The perimeter (106) of the lens blank (101) is aligned with a reference plane (R). The displacements of the gauges (III and IV) can be used to calculate the centre thickness and front surface sag of the lens.

Abstract: An instrument console for use in scuba diving includes a console body having a first end adapted for connection to a pressurized air line, and a second end opposite the first end, at least one instrument being secured within the console body, a compass having top and side Lubber Lines, a compass housing configured to accommodate the compass and being connected to the second end of the console body to pivot relative to the console body, so that while held in front of the swimming diver, the compass may be maintained and read in a generally horizontal position, and the instruments may be viewed in a generally vertical position.

Abstract: A vernier calipers incorporated height gauge including a vernier calipers, a bottom block having an elongate groove at the top into which the stationary jaw of the vernier calipers is inserted and fixed by a screw, a locating block horizontally fastened to the vernier of the vernier calipers by a screw, a marking knife, and a connecting rod having a top end connected to locating block by a screw and a bottom end connected to the marking knife by a screw. An open chamfer is made on the bottom block and detachably covered with a lid for storing the marking knife, the connecting rod, and the locating block, when the height gauge is not in use.

Abstract: An instrument for measuring dimensions of a can seam portion including a criterion measuring pin, a linear gauge provided with a measuring spindle which is so supported as to be movable along a straight line L in the direction of approaching said criterion measuring pin and in the direction of leaving said criterion measuring pin, a can cap supporting block, and a can body supporting block. The can cap supporting block holds the can such that the direction of measuring can seaming thickness T coincides with the straight line L so that the inner face of the can seam portion contacts the criterion measuring pin. The can body supporting block holds the can such that the direction for measuring the can seaming width W is identical with the straight line L and the lower face so that the can seam portion contacts the criterion measuring pin.

Abstract: A rotary displacement measuring apparatus includes an axle whose rotary displacement is to be determined, with the axle being mounted to rotate about its long axis. An emitter is mounted on the axle to define a plurality of concentric tracks circumscribing the axle to rotate as the axle rotates, with each of the tracks being segmented to define a plurality of spaced-apart, conductive sections for producing electric fields when energized. Also included is a voltage source for energizing the conductive sections. A detector is disposed adjacent to the tracks of the emitter and includes a plurality of sensors, each positioned adjacent a respective track to detect the electric fields of the respective track as the axle and tracks are rotated. The detector produces signals representing the variation in the electric fields as the emitter is rotated, and these signals provide an indication of the rotary displacement of the tracks and thus of the axle.

Abstract: A wheel position measuring apparatus comprises a detector device and a wheel adaptor for fixing the detector device to a motor vehicle wheel whose position is to be measured, in aligned relationship relative to the wheel axis. Connected between the detector device and the wheel adaptor is an angle measuring device for measuring the angle between the wheel adaptor when secured to the wheel and the detector device, in a plane which is perpendicular to the axis of the wheel, with the apex of the angle being on the axis of the wheel.

Abstract: An orthopaedic gauge 1 for measuring a length dimension of an elongated orthopaedic device, such as a screw 50, 60, or 70 or a pin or other elongated orthopaedic device. The gauge 1 includes a base portion 10 having a fixed reference point thereon, such as a raised post 12, and a raised platform 20 extending from the base portion 10 and spaced from the reference point. The raised platform 20 includes a plurality of stops 22. One end of the orthopaedic device is positioned about the reference point and the device is swung through an arc about the reference point until the other end of the device abuts one of the plurality of stops on the raised platform. A suitable scale such as 38 or 39 is provided to correspond with the plurality of stops for determining a length dimension of the device.

Abstract: The invention provides a system, method, and computer program for automatically evaluating the linear displacement and inclination of the centerline of a piece of hardware to be machined on a computer numerically controlled (CNC) machine relative to an axis of rotation of the machine about which the hardware will be rotated. The invention also provides a compensation for correcting for any hardware axis misalignment.

Abstract: An instrument set for plumbing or leveling and relative height setting of members such as posts or beams, each instrument including orthogonal sides and a feature projecting from the top of one side allowing each instrument to be set atop a respective post with the orthogonal sides against the post and a rabbeted feature on the bottom of one side allowing the instruments to be set atop a beam. Bubble levels on the sides of at least one of the instruments enable plumbing of a post or leveling of a beam, and open topped sight tubes attached to each instrument and interconnected with a water filled hose enable height setting with the same instruments.

Abstract: A gauge member arranged to include first and second planar side walls arranged in a parallel coextensive relationship having a first end wall spaced from a second end wall having a first step therebetween, a second step is positioned at an uppermost end of the second end wall parallel to the first step. The first step and second step are spaced apart a predetermined spacing, with a third end wall and a fourth end wall spaced from and parallel relative to one another at an opposed end of the body structure, the third and fourth steps are spaced apart a further spacing greater than the predetermined spacing, the first and second steps are arranged to position and engage overlapping siding plates, the third and fourth steps are also arranged to engage overlapping siding steps at a greater spacing relative to one another.

Abstract: A probe comprises a support casing, a movable arm-set with an arm carrying a feeler and a detection device providing a signal further to contact occurring between the feeler and the workpiece. In order to enable the feeler to perform translation displacements along a longitudinal geometrical axis and rotations about transversal axes, the matching between the support casing and the arm-set is obtained by means of a cone-shaped surface, a spherical surface and a spring urging these surfaces into contact. An annular reference surface of the movable arm-set enters into contact with an annular plane surface of the support casing when a first eccentricity value of the feeler, with respect to the longitudinal geometrical axis, is reached, and when a second eccentricity value is reached the signal of the detection takes a determined value.

Abstract: A caliper logging sonde is provided having a plurality of sensing fingers each of which is pivotally mounted to the sonde and movable with respect to the sonde in response to variations in the internal dimensions of a wellbore tube through which the sonde passes. An electrical signal which is proportional to variations in the internal dimensions of a wellbore tube is determined at regular time intervals at a series of points around the circumference of the wellbore tube. A maximum and minimum dimension for each point around the circumference of the wellbore tube during a selected time interval is temporarily stored and thereafter transmitted to the surface at regular intervals. A high density array of sensors is provided by utilizing a transducer plate having a large number of cylindrical apertures disposed around the circumference thereof.

Abstract: In measuring, cutting, and marking tool incorporating a tape measure having a case with a holder for a marking or cutting device integrally formed thereon. The tool provides reduced friction for marking and cutting tasks involving sliding of the tool. Friction reducing elements are provided on the case, e.g. slide pads or rollers. An end clip on the tape has friction reducing means involving beveled edges, angled wings, or rollers for reduced friction. An intermediary sliding handle between the end of the tape and the case and having reduced friction means and a gripping element is provided. A sharpening device for the marking or cutting tool is integrated in the case.

Abstract: A touch trigger probe for machine tools or coordinate measuring machines has three strain gauges SG1-3 which react to deflection of a stylus of the probe, causing a trigger signal to be generated in signal processing circuitry SP. To reduce power consumption, and thus to reduce thermal growth of the probe, the strain gauges are fed by constant current sources CS1-3. The sources CS1-3 are servo controlled from a reference resistance R.sub.ref and constant current source CS4, by an amplifier A4.

Abstract: The devices disclosed herein are designed for the purpose of properly spacing tile from each other to provide the desired width of space between tiles to give the desired grout line. The first device has a length sufficient to span the length or width of at least three tiles and likewise has a lip extending downward from a linear edge thereof. The second device has a lip extending downward from a flat rectangular plate having a length shorter than the length of the individual tiles. Both of these lips have identical thicknesses to give the desired grouting space between individual tiles. In preferred modifications of these first and second devices a second lip extends upwardly at the opposite parallel edge from the edge having the first lip. By having the thickness of this second lip of a different thickness from that of the first lip, the second lip can be converted to a downwardly extending lip by inverting the devices and used to give a different dimension to the width of the grout line.

Abstract: A peephole for a built-in lighting fixture type aiming device. A frame portion projected on an edge portion of an opening portion is formed on the side thereof with an engaging groove, a frame type hook plate is placed in contact with the peripheral edge of a window glass by a spring member and engaged by a hook with the engaging groove provided in the frame portion, and a seal gasket is held by the frame portion and the window glass with the aid of elasticity of the frame type hook plate to provide an airtight construction. The window glass is mounted by the frame type hook plate avoiding the need for a threaded mounting.

Abstract: A tape strip is arranged to include a strip abutment and the strip abutment is positioned within a first sleeve, the first sleeve having a V-shaped web arranged for positioning as a first corner, with a second sleeve having a second V-shaped web arranged for abutting against a further spaced corner, with the second sleeve including a slide block to receive the tape member therethrough.

Abstract: A plotting system for a sheet, includes a stretching device for stretching a sheet, a plotting device, positioned at one side of the sheet for forming images on the sheet stretched by the stretching device, and a travelling hold device for holding the plotting device such that the plotting device travels back and forth in a first direction along the sheet stretched by the stretching device. The travelling hold device travels back and forth in a second direction along the sheet. A travelling pressure receiving device is positioned on another surface of the sheet, and the traveling pressure receiving device travels back and forth in the second direction at the same time as the travelling hold device travels in the second direction.