摘要:
A hyperthermia apparatus primarily applicable to the treatment of tumors comprises at least three high-frequency generators connected to three electrodes. The electrodes are intended to be coupled to a patient's body which constitutes the load, thus producing a higher temperature rise in the vicinity of a fictitious electrode in the body. The generators have adjustable phases and amplitudes, the output of each generator being connected to each of the three electrodes.
摘要:
The present invention concerns a device for treatment by hyperthermia, comprising unipolar probes adapted to be disposed in an area to be treated of a patient, and comprising vector tubes intended to be implanted in the said area to be treated and to contain, at each hyperthermia session the said unipolar probes.
摘要:
The present invention concerns a device for treatment by hyperthermia, comprising unipolar probes of the implantable type, and comprising circuitry for modifying the distribution forms of the electrical field applied to an aera to be treated.
摘要:
An apparatus for thermal treatment of the human body, using electromagnetic waves (200 to 2500 Mc/s) and radiometric receivers for monitoring and possibly controlling the temperature reached by the living tissues. A generator at ultra high frequency delivers a power of about one Watt into a coaxial cable terminated by a probe emitting electromagnetic waves in the organ to be heated by dielectric losses in the medium. A multichannel receiver, switched at intervals, analyzes the radiation reemitted by the living tissues through the probe, then utilized as a receiving antenna. The temperature reached in a region surrounding the probe is deduced therefrom and can be utilized for controlling the power emitted through a servocontrol system.
摘要:
A mounting for a magnetic armature intended particularly for minicompact relays and provided with a housing encasing a magnetic coil, a magnetic armature and a spring is angled and held tiltably against the magnetic yoke by means of its spring force. The spring force is applied to the yoke by the flat spring strip freely inserted into the housing of the relay, which for this purpose is supported under prestress with its front side ends abutting the walls of the housing or with one end abutting the wall and with the other end abutting the switch spring or the switch spring and a switch spring support and/or contact and a contact spring support, while abutting, at its bend on the magnetic armature.
摘要:
An automatic machine (5) for coiling down successive layers of cable (2), e.g. part-completed electric cable during manufacture, in a cylindrical storage tank (1) having a vertical axis. The machine comprises: a movable beam (6) to enable coiling down to take place in a selected one of a plurality of tanks; a rotary arm (7) suspended from the beam and rotatable about an axis which is movable by the beam into alignment with the axis of said selected tank; a parallelogram linkage (30) fixed to the free end of the rotary arm, said parallelogram linkage including a vertically fixed vertical arm connected to the rotary arm and a vertically movable vertical arm (34) linked to the fixed arm; a cable follower (40) connected to the bottom end of the vertically movable arm by means of a rod (19) articulated thereto; said cable follower being vertically movable by the parallelogram linkage and horizontally movable by said rod; and a cable tractor (15) supported by the parallelogram linkage and serving to regulate the speed of the cable as a function of the inward or outward direction of spiral winding for any given layer.
摘要:
A process and apparatus for the continuous solid state forming of semicrystalline polymers using roll-drawing is disclosed. The output of an extruded thick polymer profile is stabilized by a gear pump. The profile is passed through a die for the desired geometry and a cooling calibrator. The profile is heat conditioned in heating tunnels to a temperature below the melting point prior to deformation between sets of rolls. A plurality, e.g. four pairs of rolls apply both compression and tension to the polymer profile. The tension applied on the profile, the roll gap, the linear speed of the profile and its temperature are monitored and controlled for the amount of polymer deformation and relaxation allowed. High tensile modulus and strength, both in the longitudinal and transverse direction of the polymeric strip, can be achieved.
摘要:
A machine or vehicle component subject to wear by friction and/or recurring impact, such as a roller for a tracked engine, made of light weight alloy and comprising at least one reinforcing element of hard material, distinguished by the fact that the reinforcing element, fixed to the component by bonding, has a substantially T-shaped cross-section, the foot of the T being accommodated in a groove formed in the component.