Abstract: A projection and viewing apparatus having a hollow housing with an open top and front and back walls is also provided with an optical system carriage which is mounted within the housing for rotational movement with respect to the housing. This carriage is capable of rotation from an upright position to a substantially horizontal position. The carriage is composed of a lower portion which is mounted to the housing for the rotational movement and an upper portion which is pivotally mounted with respect to the lower portion so as to be able to move from an extended position in which the upper and lower positions define the operational carriage, to a retracted position in which either the upper or lower portion is withdrawn into the other. Provision is made for locking the upper and lower portions together in the extended position. The lower carriage portion is provided with a depth dimension which is no greater than the distance between the front and rear walls of the housing.

Abstract: A device for remotely measuring the diameter of wire rope. The device includes a linear variable differential tansducer, a mechanism to guide and clamp the rope in relation to the anvil of the transducer, an elongated handle for manually manipulating the transducer and the guide and clamp mechanism.

Abstract: A device for measuring the distance and direction of destinations on road maps from a starting point is suggested which serves for the data input of intermediate destinations in navigation devices. The device comprises an angle measuring plate (10) with a 360-degree scale (13) which is arranged concentrically relative to a central borehole (14) and which begins with the north direction. A bracket (11) is supported at the central borehole (14) so as to be rotatable and carries a measuring tape case (12) at its end area (11b) and a guide (20) for a measuring tape (19) at its opposite end area (11c), the measuring tape (19) being arranged in such a way that, when drawn out of the measuring tape case (12), the measuring tape (19) extends away radially in an outward direction with its one lateral edge over the center of the degree scale (13).

Abstract: A pipeline survey pig includes an elongated hollow pig body having an enclosure for supporting a generally cylindrical tubular instrument chassis which, in turn, supports an inertial reference unit and associated signal processing and recording devices. A plurality of resilient cup members support the pig body for traversal through a pipeline section under the urging of pressure fluid. The cup members are spaced apart and secured to the pig body by spacer members which may be selectively provided to predetermine the axial spacing of the cup members so that the center of stiffness of the pig is in a predetermined position. The instrument chassis is secured in the pig body by a cam mechanism which is actuatable from one end of the chassis after insertion into the pig body to wedge opposed chassis door members into engagement with the pig body to enhance heat transfer between the chassis and the pig body.

Abstract: An apparatus for selectively drawing patterns on paper sheet or scoring patterns on plastic sheet which includes a table support, a sheet feeding assembly at one end of the table support and a sheet collecting assembly at the other end of the table support. A movable tool support carries a drawing instrument and a scoring instrument above the table support and an automatic data controlled system is connected thereto for moving the tool support in any direction to draw on or score the sheet material supported on the table support. The sheet material is advanced by grippers mounted on the movable tool support and spinners are supported on the sheet material at either end of the table support for operating a motor attached to the sheet collecting assembly and a brake attached to the sheet feeding assembly.

Abstract: The machine substantially comprises a support element of tubular form within the interior of which a column is axially movable in a first direction, a first carriage movable in a second direction orthogonal to the first and to which the said support element is pivoted to allow rotation about an axis parallel to the second direction, and an arm one end of which is fixed to the column and the axis of which is disposed in a third direction, orthogonal to the other two; the machine further includes a second carriage movable on the arm in the third direction, which is provided with attachment means for a bar to which is fixed a feeler device.

Abstract: Electrical-lead connections between stationary and movable parts of a probe head are rendered virtually insensitive to stress by wrapped development of the lead connections along the length of a spring connection between the stationary and movable parts.

Abstract: A device for indicating the size of an object, particularly a kinescope, includes a pivotal sensing-indicating arm. A sensing portion of the arm is urged by a lever which centers the kinescope on a temporary holding fixture. An indicating portion of the arm moves in response to the motion of the sensing portion and moves into alignment with one of a plurality of sensors to indicate the size of the object.

Abstract: An image projection apparatus detects whether or not a film sheet such as a microfiche is clamped between a pair of transparent members upon energization of the apparatus, performs index frame projection when the film sheet is clamped therebetween, and performs ejection when the film sheet is not clamped therebetween, thereby preventing damage to the film sheet and the jam state.

Abstract: A template for cutting floor-covering tiles or the like. The template comprises a deformable frame having five flat strips which are fixed together end-to-end, said strips comprising: (a) a thrust strip (1) provided with a positioning abutment (10); (b) two side strips (2, 3) capable of sliding perpendicularly to the thrust strip (1); and (c) a set of two line-of-cut strips (4, 5) which are hinged to each other, and which are also hinged to the ends of the two side strips (2, 3) by means of shafts (21, 31) capable of longitudinal sliding relative thereon; locking members (15, 16) being provided to enable the set of strips (1, 2, 3, 4, 5) to be locked in any desired mutual position. This instrument is used for cutting peripheral tiles when laying a covering on a floor, a wall, or a ceiling. The invention is particularly applicable to carpet tiles.

Abstract: A full-color projector system is disclosed, wherein a single light valve is employed to modulate red, green and blue illumination beams in accordance with the respective primary color components of the image. Separate but proximately located red, green and blue output projection beams are provided by a prism assembly. First, second and third periscopes are provided to separate the projection beams at the output of the prism assembly and direct the respective projection beams into first, second and third teleconcentric projection lens for convergence at a projection aperture.

Abstract: An apparatus for measuring the mass of a flowing medium and a method for producing the apparatus. The apparatus includes a carrier, to which at least one resistor layer is applied. To calibrate the resistance value of the resistor layer, material can be removed in a calibration zone on the end of the resistor layer remote from the incident direction of flow. To this end, the resistor layer is connected with a current source furnishing a constant current. The temperature of the resistor layer is measured by means of a temperature measuring device and compared in an electronic device with a predetermined temperature, and the electronic device, upon a deviation of the measured temperature from the predetermined temperature triggers a material removing device for the removal of resistor material in the calibration zone (trimming zone).

Abstract: A measuring tape has indicia thereon for measuring a patient, the indicia representing increments of a physical treatment or physiological procedure based upon a correlation between the length of a patient and that procedure. Cardiopulmonary resuscitation is an example of the type of values which can be correlated to body length and placed on the tape.

Abstract: A bow sight is disclosed that provides vertical adjustability by movement of a finger of an archer's hand that is holding the bow in a shooting position. The bow sight comprises an elongated housing mountable adjacent a front edge of a bow with an elongated vertical screw member held rotatably by the housing. A sight carriage, with a horizontal sighting element extending therefrom, moves with the screw member as the screw member rotates in response to rotation of a knob at the lower end of the screw member.

Abstract: The present invention relates to a damping device of the type comprising a housing (40) defining a sealed chamber (42) containing a viscous damping fluid such as silicone and receiving a blade capable of displacement relative to the housing. In accordance with the invention, the housing (40) and the blade (80) comprise respective series of fins (50, 51, 52, 53 and 90, 92, 94, and 96) which are interleaved. Thus, relative displacement of the blade inside the housing (40) is braked by a combination firstly of the controlled flow of fluid from one side of the blade to the other via interstices between the blade and the housing, and secondly by viscous friction between the interleaved fins. The invention also relates to a device for measuring the level of fuel in a motor vehicle fuel tank and including such a damping device.

Abstract: The invention enables two-way communication to be established between a measuring probe on a machine spindle and the machine using only two wires between the probe and the machine. Communication from the probe to the machine is achieved by causing current changes in an electrical circuit within the probe (due to the probe circuit changing state when a workpiece is detected) to be sensed by a current sensing circuit on the machine to produce an output in the machine circuit indicative of workpiece detection. Communication from the machine to the probe is achieved by varying the voltage supplied to the probe circuit under the control of the machine controller, the change in voltage being sensed by components of the probe circuit to initiate different functions of the probe circuit e.g. re-setting the probe or changing the gain of a component.

Abstract: A universal holding fixture with integrated templates for routing recess slots in doors for lock plates and door jambs for strike plates. The fixture includes a clamping mechanism allowing attachment to various widths of jambs and doors and is capable of compensation for irregularities and levels on the doors or jambs. The fixture provides two support bars to guide and control the router motor base for ease of operation and accurate control of recess depth. A depressible locating pin achieves accurate centering of lock plate with door lock bolt.

Abstract: In the work-contacting probe head (or on the suspension of the deflectable work-contacting probe head) of a coordinate measuring machine, an electromagnet is provided to trigger a mechanical impact blow or vibration if the switch-contact circuit in the three-point mounting of the probe pin remains open for a predetermined short period of time after completion of a cycle of coordinate measurement of a given work-contacted measurement location. The delivery of the impact is sufficient to overcome any residual mechanical friction that may have interfered with return of the probe to its calibrated at-rest position, at completion of the measurement cycle.

Abstract: A contact-sensing probe for measuring workpieces includes a body (16) for attachment to a machine and a workpiece contacting stylus (22) carried by a stylus holder (24) which is mounted within the body for movement relative thereto from a rest position to a displaced position when the stylus contacts the workpiece. Sensing means are provided for sensing workpiece contact by the stylus. The sensing means comprise a plurality of strain gauges (46) mounted on pillars (44) connecting two parts (36A,36B) of a support structure which supports the stylus holder on the body. The strain gauges are mounted with their principal axes lying at an angle to the axes of the pillars, and by optimizing the numbers, positions and dimensions of the pillars together with the angles of the strain gauges, high sensitivity can be achieved with minimum risk of false signals due to probe vibration, while at the same time minimizing the variation in pre-travel of the stylus.

Abstract: A device for detecting the liquid level in a tank. The device inlcudes a dioptric element having faces and a base immersible in the liquid. A bundle of optical fibers is operationally arranged with the dioptric element so that the dioptric element is disposed at one plane end of the optical fiber bundle while the other plane end of the optical fiber bundle provides an observation face. The bundle of optical fibers and the dioptric element are arranged and adapted to provide two separate and distinct zones in the observation face which are directly viewable in the surface of the observation face. One zone provides a signal zone which receives a larger quantity of light from a dioptric element when the element is not immersed than when it is immersed. The other zone provides a reference zone which receives a constant quantity of light from the dioptric element whether or not the dioptric element is immersed in the liquid.