C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
1994-12-13 PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
1995-08-31 PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
FR2657858B1 - Device perfected for folding in zigzag of a flexible band or strip of material material fed continuously. - Google Patents
Device perfected for folding in zigzag of a flexible band or strip of material material fed continuously.
B65H45/103—Folding webs transversely in combination with laying, i.e. forming a zig-zag pile by a carriage which reciprocates above the laying station
FR1427712A (en) 1966-02-11 Method and winding device for a material web fed in continuous alternately on two winding shafts
KR900013914A (en) 1990-10-22 A storage roll or folded into a z-type is sent to the pleat folded strip wiping material distribution device
PURPOSE: To detect the acoustic vibrations of an audible frequency region generated from the injured section of the cerebral blood vessel on the surface of the eyelid with a good sensitivity and to improve the stability at the time of measurement.
CONSTITUTION: A diaphragm 3 consisting of an elastic material is mounted to the aperture 9 of a housing 2 which is closed in an upper part by a cap 1 and is opened in a bottom 8. A coupler 4 is fixed to the central part of the diaphragm 3 and a band-shaped high-polymer piezoelectric film 7 which is formed with the top end of the coupler 4 as a curved part and has the stretching direction in its longitudinal direction, is extended. Both ends of the high-polymer piezoelectric film 7 are fixed to the circumference in the bottom 8 of the housing 1 by a press plate 5 and set screws 6. The high-polymer piezoelectric film 7 is connected to a connector by lead wires. A circular spot facing 12 is formed on the outer side of the hem part 10 of the aperture 9 of the bioacoustic converter constituted in such a manner and the diaphragm 3 is mounted to the peripheral edge 11.
G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
PURPOSE: To detect the position and amount of leaking liquid on the basis of a stationary tone, by obtaining amplitude information on every frequency component of leakage tones received by acoustic sensors fitted to piping.
CONSTITUTION: At one terminal side of the piping C, acoustic sensors A and B are fitted at distance to detect the leakage tone of a leakage accident occurring in a piping part D. The distance from a reference position, and sensors A and B are denoted as X and X1 and X2, the amplitude values (logarithmic value) of components of frequency f1 received by the sensors A and B are S11 and S12, and amplitude values (logarithmic value) of components of frequency f2 are S21 and S22. Further, the amplitude value at the leakage position are denoted by S1x and S2x. Then, we have (S1x-S12)/(S11-S12)=(X2-X)/(X2- X1), (S2x-S22/ (S21-S22)=(X2-X)/(X2-X1), Six/S2x=k (constant). From those equation, X, S1x, and S2x are found. The amount Q of the leakage is found from the amplitude.
US4201092A (en) * 1977-09-06 1980-05-06 Electric Power Research Institute, Inc. Method of detecting and monitoring a leak caused by a through wall crack in a high pressure fluid system
US4289019A (en) * 1979-10-30 1981-09-15 The United States Of America As Represented By The United States Department Of Energy Method and means of passive detection of leaks in buried pipes
PURPOSE: A winter sports simulator using vibration is provided to maximize sensory effect of an actual exercise giving vibration to a trainee. CONSTITUTION: A winter sport simulator using vibration provides a virtual experience about a skeleton course to a trainee. The winter sports simulator using vibration comprises a track (10); a skeleton (20) which generates a motion relative to the track arranged on the track and which detects direction control of the trainee and weight gravity change; a simulator module (50) which is arranged in a lower part of the track and which actualizes surroundings according to geographic information of the course; a display (40) which supplies scenery information to trainee being separated in certain distance with the track; and a control device (60) which controls at least one among the simulator module or the display.