Abstract: The apparatus according to the invention essentially comprises a pistol-shaped body provided with a trigger connected to a mobile carriage carrying a piston. A measuring piece may be adapted to a fixing head provided with a surface plate constituting a reference surface. A pressure spring connected to a slide ensures the displacement of the carriage and the piston, to act upon a sliding rod accomodated within the measuring piece.
Type:
Grant
Filed:
May 14, 1987
Date of Patent:
April 18, 1989
Inventors:
Jean-Pierre Girardier, Raymond Girardier
Abstract: The four components of the deviations of a rotary table from an ideal axis of rotation can be obtained by a single measuring method wherein a test body (4) having a plurality of well-defined measurement points is placed on the rotary table (1) and the positions of said measuring points are then determined by means of a coordinate-measuring instrument (3), for each of various angular positions of the rotary table, there being thus a set of ascertained measurement-point coordinates for each of the angular positions of the rotary table. From the sets of measurement-point coordinates, the travel deviations f.sub.a, f.sub.r and f.sub.t of the axis of rotation, and the angle-position deviation p.sub.w are then determined by calculation.
Type:
Grant
Filed:
November 2, 1987
Date of Patent:
April 11, 1989
Assignee:
Carl-Zeiss-Stiftung
Inventors:
Horst Kunzmann, Karl Schepperle, Gerhard Trieb, Franz Waldele
Abstract: For the purposes of determining the orientation of a surveying instrument in a borehole, while compensating for the effects of perturbing magnetic fields associated with magnetized sections of the drill string both above and below the instrument, the inclination angle .theta. and the highside angle .phi. of the instrument are determined, together with two transverse components Bx and By of the local magnetic field as measured at the instrument in the borehole. Additionally either a single component of, or the magnetide of, the true earth's magnetic field at the location of the borehole is ascertained from a look-up table or directly by measurement away from the influence of the drill string. A value .PSI.a for the azimuth angle of the instrument is then determined from the inclination and highside angles, the measured component(s) of the local magnetic field, and only the single component of, or the magnitude of, the true earth's magnetic field.
Abstract: This method for axially aligning an assembly for implanting a parietal probe through an orifice provided in the wall of a reducing-smelting furnace is applicable to an assembly comprising a tightness device equipped with a sealing off member and a tightness member, a chassis fixed to the furnace and supporting the tightness device and a frame equipped with a probe-holding carriage. The assembly further comprises means for adjusting the position of the frame and means for temporarily fixing coaxially to the tightness device first a telescope directed towards the orifice in order to align the axis of the tightness device with the axis of said orifice, and then a light beam source directed onto a target carried by the carriage in order to align the axis of the probe with the axis of the tightness device.
Type:
Grant
Filed:
June 26, 1987
Date of Patent:
April 4, 1989
Assignee:
Institut des Recherches de la Siderurgie Francaise-irsid
Abstract: In a coordinate measuring machine, apparatus for compensating the sensing means for determining the position of a probe for changes in temperature, where the machine base and the support column for the probe have differing coefficients of thermal expansion. In a preferred embodiment, the apparatus of this invention is used to prevent "zero shift" in the Z-direction for a Z-rail. The compensating apparatus is associated either with the support column or Z-rail. The apparatus offsets the greater expansion of the machine component having the greater coefficient of thermal expansion. Typically, the position sensing means for the Z-rail includes an encoder and a scale. In one embodiment, either the encoder or the scale is secured to a mount which is affixed to the column. One element of the mount which extends upwardly from the support column has a coefficient of thermal expansion which is substantially less than that of the aluminum of which the column is composed.
Abstract: A lever-actuated dial gauge supported above a workpiece by a base block. The lever includes a pedal portion which, when parallel to the workpiece, has a working clearance beneath it. When setting the height of machine tools above a workpiece, an operator may exceed the set point clearance without making a hard contact and thereby preventing damage to the machine tool.
Abstract: A multiple-layered gasket comprising a metallic gasket body including multiple interconnected gasket sections. The multiple-gasket sections are interconnected along opposed peripheral edges in a manner allowing one gasket section to be folded into an overlapping engaging relationship with another gasket section. After the gasket sections are folded upon each other, bendable tabs extending from one or more of the gasket sections are manipulated to maintain the gasket sections in their relative folded condition. The present invention further contemplates a method for making such a multiple-layered gasket.
Abstract: A sighting device for use with an archery bow, comprising a mounting plate mountable on the bow; an elongated support track attached to the mounting plate; at least one blade-like sight element connected generally perpendicular to the support track, the blade-like element being oriented edge-wise relative to the line of sight of the archer, a light emitting diode attached to the blade-like element along the edge thereof facing the archer, the light emitting diode being electrically connectable to an electrical power source; switch means controlling activation of the light emitting diode by the electrical power source; means for manually adjusting the light emitting diode vertically and horizontally, and draw indicator means indicating the position of an arrow used with the bow, the draw indicator means being operative to switch the switch means to activate the light emitting diode when the arrow is at a predetermined position.
Abstract: A two-axis inclinometer having a central electrically conductive member inserted within and spaced from the interior walls of a non-electrically conductive vessel. A plurality of four plates are mounted symmetrically on the exterior surface of the vessel. A dielectric fluid is provided in the gap between the center member and the interior wall of the vessel so as to provide a differential change in the capacitance between opposite plate members as the inclinometer is tilted about an axis perpendicular to its longitudinal axis.
Abstract: A development drafter for use in the sheet metal works of ducts, pipings and tubes includes a long tape of flexible strip and a plurality of pins. The flexible strip is in continuity along the direction of the length provided thereon with equispaced and integrally formed a plurality of parallel tubular pin holder portions extending in the direction of the strip breadth. The pins are respectively frictionally inserted in the pin holder portions and have at each one end a head, and have the length longer than the breadth of the strip. By working with the drafter to gauge a working object a development elevation of the object can be quickly and effectively obtained.
Abstract: A fixture for holding workpieces at predetermined angles while they are being interconnected includes a pair of legs and a hypotenuse forming a right triangle, whose three vertices are truncated to enable the fixture to function as a jig, as a template, or as a bending tool. Workpieces may easily be attached to the fixture, obviating the need for special clamps.
Abstract: The invention relates to the alignment of motor vehicle wheels and axles. A first embodiment is disclosed for an apparatus comprising a means to hook over an adjustable mounting shaft on a steer wheel providing at least partial rotation thereof, a transverse suspension member attached to the hanger with a light source retained in a bracket and rotatably mounted on a non adjustable mounting shaft at one end thereof and a counterweight at the other. The connections of the hook means and the light source bracket to their respective mounting shafts are such that the mounting shaft is held between a clamping means and two points on each side of the hook means and light source bracket respectively. The clamping means disclosed is a threaded member with a spring loaded ball in one end which engages a circumferential groove on the respective mounting shaft.
Abstract: A master pattern for upper garments comprising three parts, a front part, a rear part and a lateral part integrated with a sleeve bottom, wherein sewing lines for sewing the lateral part to the front and rear parts are substantially parallel and straight, and a sewing line for sewing the front and rear parts to the lateral part and a sleeve attaching line bulge toward the lateral part to describe an L-shape with the sleeve root of the sleeve attaching line forming the apex, the sleeve bottom of the sleeve attaching line being located at the bottom of the cross-section of the arm root of the human body.
Abstract: A navigation device comprises a flat substrate, a compass rose carried on the substrate, an elongated cord affixed at one end to the center of the compass rose and at least one linear distance scale on the substrate having its origin coincident with the center of the compass rose. In use, the navigation device is placed on a navigation chart, so that the center of the compass rose lies over a predetermined point of origin on the chart and the North compass direction of the rose is in parallel alignment with the North direction indicated on the navigation chart. A taut length of the cord is extended from the center of the compass rose to a predetermined destination point. The desired heading direction is noted where the cord crosses the perimeter of the compass rose. The linear extent of the cord form the point of origin to the destination point is marked and placed along the distance scale. The distance to be traveled is noted on the distance scale at the extremity of the marked cord length.
Abstract: A machine measures an object of generally circular cross-section by superimposing on the subject a cylindrical coordinate system having five axes, namely a vertical measuring axis Z, three radial axes R0, R120, R240 emanating at a common point along the measuring axis Z, and a rotational axis .theta. having its center at the measuring axis Z. The machine includes an elevating unit which supports the object with its axis generally parallel to the measuring axis Z and is further capable of moving the object parallel to the measuring axis Z as well as rotationally about the measuring axis Z along the rotational axis .theta.. A measuring device monitors the linear position of the object along the axis Z while another measuring device measures the angular position of the object along the rotational axis .theta..
Type:
Grant
Filed:
September 25, 1987
Date of Patent:
January 31, 1989
Assignee:
The Timken Company
Inventors:
Thomas A. Ballas, William E. Harbottle, Russell W. Keller
Abstract: A stencil device for a post card and the like is provided and consists of a body member with stencil slides that are interchangeable for making various shapes by outlining openings in the slides with a writing instrument. In another form turnable stencil wheels on the body member are utilized for making the various shapes.
Abstract: A thread meter comprising a holder for a thread reel, a counter provided with a rotary measuring wheel and guides for a thread, and an outer casing for enclosing said details. The invention is characterized in that a first guide (19) for a thread (20) is located between said holder (13) and said measuring wheel (16), that a second guide (26) for the thread is formed by said casing (4,6), which consists of a first portion (4) and a second portion (6), which are hingedly interconnected, that in the first portion (4) a recess (26) extends from an edge (27) of the wall of the first portion (4), and the second portion (6) of the casing is arranged to bridge the opening (28) of the recess (26) along said edge (27), so that a hole with closed periphery is formed, and that said wheel (16) is located along a line extending between said guides (19', 26, 30').
Abstract: A combined centerline target and grade checker apparatus (10) for use in aligning the centerline of a pipe segment (200) and checking the grade of a pipe trench (1), wherein the apparatus (10) comprises a target unit (12) and a support unit (13) which are moveably and operatively associated with a framework unit (11) such that the apparatus (10) can be used in conjuction with a laser beam generating device (100) to function both as a grade checking device and a centerline target device.
Abstract: A compass dither device for use with a magnetic compass heading sensor unit for marine seismic streamers and the like having interrogating circuitry associated with the heading sensor to periodically provide a trigger pulse for interrogating a compass heading sensing components in the heading sensory unit and provide compass heading signals indicative of the heading of the compass the the time of interrogation, the compass dither device including a housing for the magnetic compass heading sensor unit having a dither coil encircling the portion where the headings sensory unit is positioned.
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.