Device for the cutting or vaporising of various materials and tissues by using the laser effect, in particular for the treatment of dental caries and the cutting of the dentine, characterised in that it comprises a specific laser of the YAG type having in particular the following characteristics: - a capacity for emitting a pulsed energy of between 0 and 250 millijoules; - firing rate of 50 Hz; ...

A gripper bar fitted on drive chains and destined to grip and carry plate shaped sheets of material through printing, cutting and similar machines to produce a package characterized by the bar including a hollow profile on which the grippers are fastened. Every gripper consists of a flat spring attached at one end to a leading edge wall of the bar and having the other free end taking a rest positi...

A transfer device for a four-wheel drive vehicle has a transfer shaft (5) rotatably mounted by first (11) and second bearings (8), and a transfer gear (6) rotatably mounted on the transfer shaft (5) between the bearings. A coupling device (17) is provided outside the first bearing (11) for engaging the transfer gear with the transfer shaft, and a bevel gear (7) is secured to the transfer shaft at ...

In a method and a device for treating a machined surface of a workpiece made of a brittle material, a laser beam generated by a laser oscillator is applied to the machined surface of the workpiece while the workpiece is relatively moved with respect to the laser beam. Additives and impurities exsisting in cracks generated on the machined surface melt due to thermal energy of the laser beam thereby...

A reinforcement for thin film materials is provided by coating the films (10) with an ink-type material (12). Ink coating of moisture vapor-permeable films such as polyurethane allows for a film suitable for use on skin which has an optimal rate of moisture vapor transmission. If desired, an adhesive can be provided on the ink-coated polyurethane membrane, and such materials are suitable for retai...

A belt drive continuously variable transmission has a primary pulley operatively connected to an engine and a secondary pulley operatively connected to wheels of a motor vehicle, hydraulic cylinders for changing effective diameters of both pulleys, and a transmission ratio control valve for producing a primary pressure applied to the primary cylinder for controlling transmission ratio. An anti-loc...

An apparatus for the supply of elastomeric threads, especially for textile machines, with at least two rollers (13, 14) which are arranged horizontally and axis-parallel to one another and on which at least one take-up bobbin (17) with an elastomeric thread (28) rests freely rotatably, the rollers being rotatably mounted on both sides on a frame (10) of the apparatus, on which frame the drive devi...

The invention relates to a device for applying a liquid, for example oil, on to a running yarn, with a rotatably mounted roller (1), projecting into the yarn run, for receiving a liquid film on its surface (1') out of a liquid reservoir (9) and for dispensing the liquid by surface contact. In order to improve a device of this type in a manner advantageous for its use, a spatial separation of the r...

According to the invention, the telescopic column (1) is designed to carry a radiating element (3) and has a device (6) for accommodating a first cable (7) and a second cable (8) in the same winding direction, and for applying a tensile force to the first cable (7) which acts on that end of the telescopic column (1) which supports the radiating element (3). The free end of the second cable (8) is ...

Safety device in the feeder of a paper-sheet processing machine with a stack-lifting chain (3), controlled so as to be freely rotating, for raising and lowering the feed stack (2), with drive means for carrying along the stack-lifting chain (3) for raising the feed stack (2), with drive means for carrying along the stack-lifting chain (3) for lowering the feed stack (2) and with means for disconne...

Such a mounting device comprises a column (1). A first leg (3) of an L-shaped mounting (4) is mounted so as to be pivotable about its longitudinal axis (5) on one end (2) of this column (1). A bearing site (7) for the radiation emitter (8) is provided on the second leg (9). The bearing site (7) can be adjusted about a swivelling axis (10), which is offset in parallel to the longitudinal axis (5), ...

A die-cutting apparatus includes a die roll 12 and an anvil roll 14 having a cover (outer sleeve 22) on it. The die roll and anvil roll rotate about parallel axes, the position of the anvil roll axis being adjustable, for example by means of eccentric bearings, to compensate for a reduction in the diameter of the anvil roll following trimming of the cover. An encoder 88 is provided for sensing the...

This specification discloses an epicyclic gear with two driven shafts which rotate at different speeds, the speed of the second driven shaft being reducible or increasable by means of a second gear stage, the input shaft of which can be varied in its speed, functioning as a control shaft, the magnitude of the speed difference between the two driven shafts depending solely on the speed of the contr...

The present invention provides a resilient, fluid-pervious, laminate, plastic web suitable for use as a topsheet on absorbent articles, especially catamenial articles. The web includes a first layer of polymeric material, a second layer of polymeric material and an intermediate layer of fibrous material. The fibrous material of the intermediate layer extends below the second surface of the web, pr...

The present invention provides an absorbent article including a fluid pervious topsheet, a fluid impervious backsheet joined to the topsheet, and an intermediate layer positioned between the topsheet and the backsheet. The topsheet comprises: a resilient, three-dimensional, macroscopically expanded, fluid pervious web including a first polymeric material which exhibits a first melting point temper...

In the case of a grid plate 1 based on lead-coated copper metal mesh 2 having a lead current-carrying tab 8, which is cast directly thereon, the region of the mesh grid which is covered by the plastic extrusion coating 3 is pressed flat around the casting-on point, in order to make it possible to close the mould halves for casting of the lead tab via the grid, and to prevent lead flowing into the ...

Catalytic metal additives that directly dissolve in gasoline in concentrations providing efficient and economical three-way catalysis of exhaust gases from internal combustion engines. The additives are compounds of noble (e.g., Pt, Pd, Au and Rh) or non-noble (e.g., Re) metals. The preferred compounds have polar metal ligand bonds, preferably with inorganic ligands such as halogens, oxygen, etc.,...

A method for closing a passage in a filter body sample made from a solidifiable plastic or plastifiable particle-based material and comprising a plurality of coestending throughgoing passages separated by ccmmon passage walls, the method comprising deforming passage walls adjacent to the passage. This method vastly simplifies the manufacturing of filter bodies for use in e.g. filtering fiue gasses...

Concentrated liquid and solid lubricating compositions having superior compatability with synthetic polymeric packaging materials, such as polyethylene terephthalate (PET), linear high density polyethylene (LHDPE), polystyrene, polymeric coated papers, and the like, can include 1 to 50 wt % of a fatty acid diamine salt having the formula [(R1)(R2)N(R5)NH(R3)(R4)]+(R6COO)- or [(R1)(R2)NH(R5)NH(R3)(...

The present invention relates to hydrogenated block copolymers of butadiene and at least one other diene, preferably isoprene. The copolymer is hydrogenated and comprises at least 10% by weight of at least one crystallizable segment and at least one low crystallinity segment.