There is provided a method and apparatus for maintaining the cutting conditions constant at a rotary punch by bringing the rotary punch to a constant, predetermined temperature and maintaining the rotary punch at that temperature. Tempering elements are included in the rotary punch so as to maintain constant and set the spacing of the cylindrical envelope described by the cutting edge or edges fro...

PCT No. PCT/JP83/00198 Sec. 371 Date Feb. 6, 1984 Sec. 102(e) Date Feb. 6, 1984 PCT Filed Jun. 18, 1983 PCT Pub. No. WO84/00148 PCT Pub. Date Jan. 19, 1984.A method and an apparatus for detecting fluctuations of a monitoring standard of a thread-knotting monitor of an automatic thread-knotting machine in an auto-winder by detecting if a number of operations of the thread-knotting monitor is over a...

An installation for treating trellis plants in block-type hothouses comprises a self-propelled chassis provided with an electric drive and with a distributing shaft (6) and moving along guides in the space between the plant rows. Mounted on a platform (1) of the chassis are: a pulverization device (13), a unit (14) for automatic control of the chassis movements and of the functioning of the pulver...

An installation for treating trellis plants in block-type hothouses comprises a self-propelled chassis provided with an electric drive and with a distributing shaft (6) and moving along guides in the space between the plant rows. Mounted on a platform (1) of the chassis are: a pulverization device (13), a unit (14) for automatic control of the chassis movements and of the functioning of the pulver...

A self-contained microsurgical laser which has a housing adapted for mounting on a surgical microscope. Mounted within the housing are an infrared laser source and a visible laser source. Means are provided in the beam path of the infrared laser for interrupting the beam and for polarizing and attenuattng the beam. Beam expanding means are provided in the beam paths. Wave front correction means ar...

A frangible or breakaway valve for use in a flexible tube. The valve comprises two parts: a tubular portion with a closed end and an elongated, generally rigid handle breakably attached to the closed end. The elongated handle has projections which frictionally contact the interior surface of the flexible tube and prevent the elongated handle from moving back into a closed position once the elongat...

The heel holder (5) can be released when a certain load acting on the binding is exceeded. A strap arrangement (11) is arranged in the connection of a sole hold-down (17) to a part of the heel holder which is essentially fixed to the ski. Two axles (9, 12), which extend transversely to the ski and parallel to its surface in the ready-for-use position of the holder, penetrate the strap arrangement,...

The invention is directed to a rigid article comprising a soft foam member, preferably open cell polyurethane, adhered to at least one surface of said soft foam member, a hard polyurethane resin member; said adhesion being obtained by way of penetration of hard resin affording material into cells of said soft foam member for a distance sufficient to provide a substantially permanent bond between s...

The heel hold-down device, notably for safety ski bindings, comprises a fixed body, a tilting heel retaining member, a control lever, and an elastic mechanism incorporating an axial coil compression spring. The fixed body has two lateral vertical walls and is operatively connected to a movable U-shaped piston of which the two flat side arms are adapted to slide parallel to the vertical walls of th...

A safety binding for a cross-country ski including a longitudinal rib bordered laterally by two longitudinal surfaces which are substantially planar and are adapted to engage a groove in a shoe sole. The rib is independent of and displaceable laterally with respect to the longitudinal surfaces and supports an apparatus defining a transverse journal axis around which the anterior zone of the shoe i...

A vehicle guidance system for a tractor has a horizontal scanning laser on the tractor and a target arranged to return the laser beam along its path. When returned laser light is detected, indicating alignment of the beam with the target, the angle of the beam relative to the tractor axis illustrates the steering correction required. The target has an array of beam reflecting elements patterned to...

A rack boot which is installed at the steering rack portion of an automobile comprises a small-diameter ring portion, a large-diameter ring portion, and a bellows portion interposed between the small-diameter portion and the large-diameter portion. An angle to an axial line of the boot of a slanted wall of a first crest in the bellows portion is arranged to be 70 DEG to 85 DEG , whereby the slant...

Cellulose is activated by penetration of the cellulose with a polar medium and mixed at a temperature at which no significant degradation occurs with an amide selected from the group consisting of dimethylacetamide, 1-methyl-2-pyrrolidinone and mixtures thereof and from 3 to 15% by weight of lithium chloride. The cellulose is then dissolved in the amide and lithium chloride in the substantial abse...

The invention provides an installation for testing a well by pumping by means of a submerged pump and a process for use thereof. The assembly 6 formed of an hydraulic pump and motor is carried by one end of a reinforced flexible tube 1 wound through a pulley 7 on a drum 3 actuated by the surface motor 8. . In the sheath of tube 1 are housed electric conductors 2 for supplying the motor of assembly...

PCT No. PCT/FR84/00015 Sec. 371 Date Sep. 24, 1984 Sec. 102(e) Date Sep. 24, 1984 PCT Filed Jan. 23, 1984 PCT Pub. No. WO84/02914 PCT Pub. Date Aug. 2, 1984.Process for the preparation of cellular products and laminates based on anhydrous furan prepolymers which possess free OH groups, which is carried out at normal temperature using small amounts of silicon tetrachloride and/or phosphorus oxychlo...

The device according to the invention realize the following steps: (a) recording of binary test words on an optical disc associated to distinct engraving optical powers and comprising monotonous series of "1" and "0" logic bits of equal duration; (b) reading of these words; (c) measurement of the durations of these bits in the "1" state and bits in the "0" state, (d) determination of the optical p...

Photocurable coating composition containing a UV absorber for the protection against aging of PVC. Said composition comprises a photopromoter of the radicalar type, a multifunctional acrylic polyester prepolymer or a mixture of a multifunctional acrylic polyester prepolymer and a multifunctional acrylic polyurethane prepolymer, optionally a diacrylate monomer as reaction diluting agent, a UV absor...

The invention relates to the cocurrent gasification of coal and to a gas generator. The gas generator (11) comprises a vertical sealed vessel, the lower third of which is divided into several identical vertical compartments (12). Coal is loaded at the top (17). The major part of the hot reactive gas under pressure is introduced at the top (18), and the remaining part at lower levels (21, 22). Gas ...