Abstract: The system comprises a mobile device mounted (2) on each moving body, a fixed receiving antenna (3) and means for processing (4) the identification signals emitted by the mobile devices (2). The frequency of these identification signals is representative of the respective moving bodies. In addition, a transmitter (22) is provided to send the devices (2) a control signal that serves, on the one hand, to allow power supply to be applied to means for generating the identification signals and, on the other, serves as reference signal for those means, which do not have their own time base. This system is particularly well suited to the timing of automobile races.

Abstract: An oil seal disposed between a housing and a rotating shaft received in the hollow inside of the housing so as to prevent a liquid in the housing from leaking to the outside. The oil seal has a first metal ring and a second metal ring. The first metal ring is secured at the outer peripheral portion thereof to the housing and is provided at the inner peripheral portion thereof with an annular seal lip which is in slide contact with the outer peripheral surface of the rotating shaft thereby to seal the liquid in the housing. The second metal ring is connected at the outer peripheral portion thereof to the outer peripheral portion of the first metal ring and is separated at the inner peripheral portion thereof from the inner peripheral portion of the first metal ring in the axial direction of the rotating shaft so as to form an annular space in cooperation with the first metal ring. The second metal ring further has a dust lip which is in slide contact with the outer peripheral surface of the rotating shaft.

Abstract: To increase the speed of rotation of a step-by-step motor in the forward or reverse direction, the motor is driven at its "synchronism" speed.For the motor to perform N steps at high speed involves applying a starting drive pulse that induces forward or reverse motion, then applying N-2 alternating maintenance pulses and finally applying a stopping pulse. Preferably, a circuit using the coupling coefficient of the motor as a servo-control parameter defines the instants at which the maintainance or stopping pulses are applied.

Abstract: The watch case comprising a middle (2) containing a lining (4) and a back (9) detachably mounted in a lower opening of the middle by means of a pressure device. A band (12) of synthetic material constituting a seal is formed on the periphery of the opening, that band being made in one piece with the lining and connected to it by portions of synthetic material crossing appropriate passages (15) of the middle. The side walls (16) of the opening are at least partially devoid of lining and they work together with opposite surfaces (17) of the back in order to assure pressure coupling of the latter and compression of the band (12).

Abstract: A developing apparatus for electrophotography is disclosed which comprises a toner hopper as a vessel of a magnetic developer, the toner hopper having an opening formed between one side plate of the toner hopper and a developing sleeve to effect delivery and recovery of the magnetic developer, the developing sleeve being rotated from a developing zone for developing a latent image on a latent image-bearing member with the magnetic developer toward the opening and the plate of said toner hopper other than the opening being in abutting contact with the surface of the developing sleeve, a magnet roll comprising a plurality of magnets, which is rotated in the same direction as the rotation direction of the developing sleeve on the inner side of the developing sleeve, and a stopper for regulating the zone of delivery of a layer of the magnetic developer on the surface of the developing sleeve by causing the top end of the stopper to abut on or come close to the surface of the developing sleeve along the direction

Abstract: The present invention relates to a shuttle type line printer which is characterized in that among members constituting printing elements of the shuttle type line printer, such as a permanent magnet, an electromagnet, a yoke and a printing hammer, the permanent magnet occupying a considerable proportion of the total weight of the printing elements is separated from the shuttle to reduce the weight loaded on the shuttle, and the permanent magnet separated from the shuttle is used as a part or all of a balancer indispensable for removing lateral vibrations having fatal influences on the shuttle type line printer. In a conventional shuttle type line printer, all of printing elements such as a permanent magnet, an electromagnet, a yoke and a printing hammer are loaded on one shuttle and a balancer having a weight corresponding to a heavy total weight of the shuttle should be disposed to remove undesirable lateral vibrations.

Abstract: A pneumatic measuring device is disclosed which comprises a pneumatic circuit containing a first branch (15) equipped with an inlet nozzle (16), oppositely disposed measuring nozzles (17) and a second branch (19) equipped with an inlet nozzle (20) and a reference nozzle (21). A differential pressure transducer (22) having a semiconductor element enables the difference in pressure between the branches (15) and (19) to be measured and to supply through a terminal (23) a signal representing the dimensions measured opposite the nozzles (17). The pneumatic circuit system, with the pressure transducer, is included in the measuring spindle (12).

Abstract: A measuring device is disclosed which contains a sensor fastened to sensor holding elements (4, 5, 6, 7, 8) and suspended so as to be displaceable in relation to a frame (1) in three orthogonal directions (x, y, z).For each direction of displacement, two parallel moving bridges (11 and 12, 20 and 21, 28 and 24) are provided which are hinged on rigid connecting elements (13, 14, 22, 25). The device permits the return of the sensor to its reference position in the first two directions of displacement (x, y) by gravity or by centering elements provided for that purpose.

Abstract: The present invention is characterized in that the separating hook and hopper roller are adapted to be mounted on sheet guides of the hopper, one end of said sheet guide being adapted to be engaged in a groove of a pressure sleeve so as to make said pressure sleeve movable along said end. A movable shaft is adapted to pass through said pressure sleeve, and a spring is provided between said pressure sleeve and said sheet guide which biases the pressure sleeve to the hopper roller side, whereby at least the hopper roller, separating hook, pressure sleeve and spring at the print line end are made movable with the sheet guide being moved; thus by manually moving only one of the sheet guides, the sheet guides are made to meet right and left ends of the sheet, and the hopper roller is also made to select the correct position of the symmetrically central position of sheet width.

Abstract: Disclosed is a serial printer comprising a carriage loaded with a printing head and moved in the horizontal direction, wherein a motor is contained in the carriage, a pinion is attached to a rotor shaft of the motor, a rack engaged with this pinion is attached onto a guide rail for movably supporting the carriage and the carriage loaded with the printing head is moved along the rack by rotating the pinion engaged with the rack by rotation of the motor.In this serial printer, the power loss of the motor due to the presence of an intermediate power transmitting member indispensable for the conventional printer, such as a wire rope, a toothed belt or a screw shaft, can be eliminated, and occurrence of troubles due to stretching or deformation of this intermediate power transmitting member is prevented. Accordingly, the capacity of moving and positioning the printing head is increased.

Abstract: A keyboard label display replacement system formed of paper strips which are placed on conventional keys arranged in a row and column matrix. Plastic caps cover the keys, and the strips of pre-folded paper are laid on top of the columns of keys to conform to the location and shape of the keys allowing replacement of the key labels to be easily achieved.

Abstract: A method is disclosed for forming a paperweight which has the resultant sculpted form of a crumpled sheet of paper. The method includes the steps of heating a vinyl sheet until it is soft and pliable and wrapping that sheet about a metal weight to take the above mentioned rigid form when it is cooled down.

Abstract: The invention concerns contact lenses for observation or irradiation of the eye. The contact lens contains, for useful radiation, an entry face (1), a surface (2) reflecting by total reflection and an approximately spherical exit surface (3). Entry face (1) constitutes a wave surface for useful radiation.

Abstract: A pulsed shaker shocker is provided in which an intermittent pulsed action is provided to the containers carrying liquid to enhance the shaking action for the liquid carried in the containers. Such shaking action is found for separatory type shakers, and the pulsed action enables a more efficient shaking action to be obtained. The pulsed nature of the shaker shocker more closely resembles the manual shaking action, and this way, more efficient shaking may be obtained.

Abstract: The contact lens (1) for observation and treatment by a coherent radiation beam of a working point T of the eye comprises, for example, an entry lens (4) coupled to a contact lens (5) designed to be applied to the cornea of the eye, the optic axes (6) of said lenses being merged. The entry surface of the lens is spherical and is associated with Weierstrass points A and A' and the image of point A' by the rest of the contact lens is merged with said working point T.

Abstract: The optical head of an installation for observation and treatment by a laser beam of an eye comprises a mirror disposed between an observing microscope and a focusing lens for reflecting towards the latter a treatment and a marking laser radiation beam forming a visible envelope of the treatment beam. That mirror has an outer portion intersecting the marking beam only and an inner portion intersecting the treatment beam only. That inner portion has a reflection coefficient which is maximum for the wavelength of the treatment beam and minimum for the wavelength of the marking beam, so that the latter only is allowed to reach the observing microscope after reflection on the zone of the eye to be treated.

Abstract: A system is disclosed for examining the response in atomic and molecular resonators to identify and select the maximum resonant peak and the voltage used to cause said peak to be produced. The system is fabricated of modular elements electrically connected to a circuit board to facilitate its construction and transportation with the resonator. A microprocessor is utilized to perform the analysis and to generate information to select the maximum resonant peak, and the system includes means to compare the value of successively generated resonator outputs and to select the output with the maximum peak.