Abstract: A propulsion system is provided for advancing a cable of a sewer cleaning and/or sewer inspection system, comprising a propulsion device, a measuring device for measuring the advancement of the cable, and an evaluation device. The propulsion device and the measuring device are adapted to provide a first and a second measured value of the advancement of the cable independently of one another, and the evaluation device is adapted to form a difference between the first measured value and the second measured value. A control device may be provided which adjusts the advancement based on the determined difference. A correspondingly designed method is also provided.

Abstract: The present invention is to provide a brake disk capable of enhancing the turning performance of a motorcycle by reducing the inertia, and preventing deposition on a braking portion by reducing a temperature variation of the braking portion. A brake disk 1 is provided with a sliding disk 10, a hub disk 20, and a connection pin 31 for connecting the disks 10 and 20 to each other at plural positions in the circumferential direction of the brake disk 1. An engaging convex portion 12 projecting inwardly of the sliding disk 10 is formed on the sliding disk 10 at circumferential positions corresponding to the connection pins 31. An engaging concave portion 24 for receiving the engaging convex portion 12 is formed in the outer periphery of the hub disk 20. An insertion hole 12c for the connection pin 31 is formed in the engaging convex portion 12.

Abstract: A measuring roller for a device for measuring a fiber composite (2), in particular on a draw frame, a carding engine or a comber, is made of a material of low thermal expansion (3) and has a surface coating (4). The measuring roller (1) features a shell surface (5) for clamping a fiber composite (6) along with a rotary axis (7). The shell surface (5) features a structure forming an air buffer, made of grooves (8), boreholes (9), and/or spherical projections (18).

Abstract: A system (12) for measuring geometry of a non-circular twisted strand (10) during a stranding process, the system comprising: a pulley (14), for being rotated by linear displacement of the strand (10) induced by the stranding process; a first encoder (16), for measuring the rotation of the pulley (14), thereby measuring the linear displacement of the strand (10); at least one embracing element (36), for embracing a vertex (38) or another zone (48) of the strand (10), for being rotated perpendicular (60) to the longitudinal position (58) of the strand (10), the embracing obtained by the non-circular character of the strand (10) rather than by friction, thereby allowing sliding the at least one embracing element (36) therealong; and a second encoder (20), for measuring the rotation of the at least one embracing element (36), thereby measuring the twist character of the strand (10).

Abstract: A sheet length measuring device includes a rotating body configured to rotate with a movement of a sheet in a conveying direction; a position detecting unit configured to detect leading and trailing ends of the sheet passing through a position of the rotating body; a measuring unit configured to measure a rotation amount of the rotating body and output an origin signal per one revolution of the rotating body; a storage unit configured to store changes of a sheet conveying amount with respect to respective rotation angles in one revolution of the rotating body; and a calculating unit configured to calculate a corrected length of the sheet from a value obtained from a rotation angle of the rotating body when the leading end of the sheet is detected and a value obtained from a rotation angle of the rotating body when the trailing end of the sheet is detected.

Abstract: A method of calibrating once-around and harmonic errors of encoded nips is provided. An encoder with an index pulse is used to measure the velocity and rotation of the driven wheel or idler. The geometry of the drive train and wheel and idler is chosen so that their once around and harmonic frequencies are unique such that no other drive errors will generate these frequencies. The method includes running the idler or wheel at substantially constant velocity for N revolutions. Each index triggers the collection of velocity data, which is averaged for N revolutions. This process detects drive train motion errors that are periodic with respect to the timing of the index pulse (i.e., once per revolution of the wheel or idler). Once the velocity errors have been measured, corrections are made. This method may be incorporated in xerographic machines as part of a setup or calibration procedure.

Abstract: A handheld yarn measuring device (1) for monitoring yarn in yarn processing machines. The yarn measuring device includes a catcher (8), which when a trip lever (6) is actuated, places the yarn over a yarn applicator element (27) of a force sensor (29). The yarn tension and speed is detectable and delivered to a processing device for display and further processing. The device, which may be operated by one hand, has a boomerang-shaped housing (2) one end of which supports the trip lever (6), a control knob (10) and a display (5). The control knob (10) can be twisted and depressed by the user's thumb so that the selection of all the measurement and operating modes can be done with only the thumb. The measurement is performed by means of the trip lever (6), which actuates both the yarn catcher (8) and a measurement activation switch (49).

Abstract: An apparatus that accurately measures rope, wire, tubing and other materials is herein disclosed. A variety of different-sized models would possess different sized openings. One model with a one-inch opening would be used to measure small wire and cable. Another model with approximately a 3-inch opening would be used for larger electrical cables, rope, tubing and the like. An even large model would be available for measuring ductwork, hoses, and other large diameter material. As the material is pulled through the opening, an optical sensor, similar to that used on an optical computer mouse, accurately measures the material to the fraction of an inch. A mechanical sensor, utilizing a guide wheel is also envisioned. The length is displayed on a digital readout on the perimeter of the invention that is provided with a power button, reset button and the like.

Abstract: A cable length sensor, in particular, a bowden cable displacement sensor, comprising a cable drum, a measuring cable wound on the cable drum and a return device at least lightly pre-tensioned in the start position, wherein the measuring cable may be withdrawn by rotating the cable drum against the force of the return device and by withdrawing the measuring cable the return device may be further tensioned. The return device is arranged in a housing, and coupling means for releasably coupling the return device to the rotating movement of the cable drum are provided so as to permit ready removal and replacement of the return device. Also, the housing may be provided with a sensor element operated from outside the housing for determining the current position of the return device, in particular the at least lightly tensioned starting position of the return device.

Abstract: A tubing counter for counting coiled tubing inserted into a well includes an outer housing having a through passage for receiving the coiled tubing therethrough. In some embodiments, pressure rated connectors at both of the ends of the outer housing sealably connect the outer housing in series between the coiled tubing injector head and the outer casing of the well. A plurality of counting wheels are rotatably supported within the outer housing for rolling engagement along coiled tubing inserted through the outer housing while a counting mechanism records a number of rotations of each counting wheel independently of the other wheels to minimize counting errors. Locating the counter below the injector head and below the tubing stripper ensures that the tubing is cleaner and less likely to slip in contact with the counting wheels while also accounting for stretching of the tubing for more accurate measurement.

Abstract: A handheld yarn measuring device (1) for monitoring yarn in yarn processing machines. The yarn measuring device includes a catcher (8), which when a trip lever (6) is actuated, places the yarn over a yarn applicator element (27) of a force sensor (29). The yarn tension and speed is detectable and delivered to a processing device for display and further processing. The device, which may be operated by one hand, has a boomerang-shaped housing (2) one end of which supports the trip lever (6), a control knob (10) and a display (5). The control knob (10) can be twisted and depressed by the user's thumb so that the selection of all the measurement and operating modes can be done with only the thumb. The measurement is performed by means of the trip lever (6), which actuates both the yarn catcher (8) and a measurement activation switch (49).

Abstract: As a rule, measuring cable position sensors consist of an axial arrangement of flat spiral spring, cable drum, and encoder. By locating the flat spiral spring within the interior of the cable drum, the construction length is reduced on one hand, and it becomes possible on the other hand to locate the cable outlet in one of the outer corners of the housing, which improves the application capabilities of the sensor.

Abstract: A handheld apparatus for measuring fish, game, and the like is provided and includes a scale, a camera, and a length measuring device. The scale includes a support member that extends outwardly from the apparatus housing, and a display that is visible through the housing. The support member is configured to suspend an object therefrom for weighing via the scale, and the display is configured to display the weight of an object suspended from the support member. The length measurement device is configured to measure the length of an object and the display is configured to display the length of an object measured by the length measurement device. The camera includes a lens, an image sensor configured to capture images obtained via the lens, and a camera display. The camera display displays an image of an object taken by the camera with weight and/or length information for the object.

Abstract: An apparatus and method for measuring the length of a cable for obtaining a reference measurement wherein a belt drive advances the cable through a first gripper until the cable is under separating/stripping cutters which cut the cable. The cable is advanced by a length measured by the belt drive, a leading cable-end being passed under a cable-end detector, and the cable is held tightly by the first gripper and with a linear backward movement, the cable is withdrawn until the leading cable-end leaves the cable-end detector. A correction factor is calculated by a control from the distance between the separating/stripping cutters and the cable-end detector and from the travel of the first gripper during the backward movement.

Abstract: A chain hoist having a casing into which and with respect to which a chain travels is provided with an externally mounted position encoder assembly. A releasable connector, such as a ratchet strap, is employed to firmly but removably couple the position encoder assembly housing externally on the chain hoist casing. The releasable connector holds the position encoder assembly housing in a fixed position relative to the chain hoist casing. The position encoder assembly has a chain gear that is rotatably mounted relative to the position encoder assembly housing proximate to the chain access opening in the chain hoist casing. The precision encoder assembly chain gear engages the portion of the chain that is maintained under tension at a location externally of the chain hoist casing and rotates as the chain travels relative to the chain hoist casing.

Abstract: A measuring device having a mounting arrangement for adjusting the space relationship between first and second shafts in a housing to maintain an engagement chord created between first and second inflatable and pliable members in the plane of the path of a product and an inflator system to maintain a constant fluid pressure in the first and second inflatable and pliable members to sustain a desired circumference for the first and second inflatable and pliable members once calibration has been established for the measuring device.

Abstract: A depth measuring system for a slickline utilized in a well bore operation where the slickline is in a non-slip relationship with the circumference of a calibrated measuring wheel and the revolutions of the wheel are utilized to provide a first length measurement. A load cell is provided to measure tension in the slickline so that length elongation of the slickline due to tension can be determined. A temperature differential determination is made so that corrections in length can be made for the temperature effects. The temperature differential can be temperature effects on the measuring wheel and/or temperature effects of the slickline in the well bore. The measuring wheel determination of length is algebraically summed with the tension elongation and changes due to temperature to provide a more accurate indication of the depth measurement in the well bore.

Abstract: An apparatus for measuring and controlling the amount of yarn withdrawn from the warp beam of a warp knitting machine is disclosed. A pressure roll engages the yarn wound on the warp beam. The pressure roll drives a second drive roll connected to a signal generator for generating signals representative of the speed of yarn withdrawn from the warp beam. The signals preferably are evenly spaced yarn length pulses representing a measure of the length of yarn withdrawn from the warp beam. The pulses are transmitted to a controller circuit which compares the generated pulses with a predetermined knitting machine operating standard and generates a control signal to the warp beam drive mechanism for controlling rotation of the warp beam.

Abstract: A mechanism for accurately measuring the length of a continuously produced product, i.e. cable, hose, chord, tube, rope, strip, wire, fiber and etc. The mechanism has a housing for retaining first and second shafts. A first rotatable member attached to the first shaft has a first circumferential face with a pliable surface thereon. A second rotatable member attached to the second shaft has a second circumferential face with a pliable surface thereon. The first and second rotatable members are moved toward each other to define a common chord between the first and second circumferential faces. The pliable surface of the circumferential faces surrounds the product as the product moves along the entire chord. An encoder responsive to rotation of the second shaft generates discrete signals which are communicated to a counter to indicate the distance moved by the product along the chord. The counter has a visual readout to inform an operator of the length of product that has passed through the mechanism.

Abstract: A guided working device (1) is driven by an operable traction motor (2) for movement along a travel rail (3). The working device carries a driver (4) provided with articulated heads for a measuring carriage (5), which measuring carriage always travels the same distance as the working device (1). The measuring carriage travels on a control rail (11) and includes a measuring device (6). A plurality of sliding conductors (17) are also receivable by the control rail (11). The measuring carriage carries a preferably toothed measuring wheel about at least a circumferential portion of which a preferably toothed measuring belt is wrapped. The measuring wheel (7) is pressed, by guided wheels (8) in front of and behind the measuring wheel, against a toothed belt supporting surface which is associated with the control rail (11).

Abstract: A wheeled measuring device having selectively usable and positionable hub elements for use with a plurality of different measuring wheels and corresponding gearing for utilization of a counter to provide different readouts in effecting desired measurements. The hub elements are received in a recess in the housing of the measuring device and retained therein as a result of securing together of separate portions of the housing of the measuring device in the manufacture thereof.