Abstract: A fixing device for cycle racks of the so-called "upright" type is in two parts. The first part comprises a removable support. It is attached to the bottom tube of the frame of the cycle by adjustable tension clips and includes a hook. A cover hides the means for adjusting the clips. The second part is attached to the fork which is mobile in rotation on the cycle rack. It includes a spring catch in a box in which the hook is engaged. A ring releases the spring catch. The spring catch can be locked by a key-operated anti-theft device.

Abstract: The present invention relates to an acoustic sensor having utility in biomedical applications. The sensor is applied to the skin of a patient and is capable of measuring the flexure of the skin caused by acoustic sounds beneath the skin and converting the skin flexure into electrical signals representative of the acoustic sounds. The sensor is formed from a single piece of piezoelectric material having electrically conductive areas on two spaced apart and opposed surfaces. The electrically conductive areas are electrically connected to electrical contacts or connector pins which may be used to hook up the sensor to a measuring device. A method for forming the sensor is also described.