Dental material which can be cured in a first stage to an elastic phase in which the material can be mechanically worked or excess can be removed and in a second stage to its final shape and which contains (a) at least one polyfunctional epimine (aziridine), (b) at least one ethylenically unsaturated monomer, (c) at least one catalyst for thermal, cold or photopolymerisation of the ethylenic...

ELECTRODES OF IMPROVED SERVICE LIFE A metal surface is now described having enhanced adhesion of subsequently applied coatings combined with excellent coating service life. The substrate metal of the article, such as a valve metal as represented by titanium, is provided with a highly desirable rough surface characteristic for subsequent coating application. This can be achieved by various operatio...

This invention relates to an application of an improved damper, of the type comprising means for progressively resisting, in exponential manner, the advance of a piston under the effect of a force of axial compression, said means constituting a stop opposing any displacement of the piston beyond a determined value of this displacement, to an intervertebral stabilization device.

A remote charging cradle (100) is configured for charging a cordless telephone handset unit and also permits the handset unit to receive and respond to a radio frequency ringing signal while located in this cradle. While being charged, the handset unit looks for a ringing signal over a direct-current charging path provided through its battery charge contacts. The operation which permits charging o...

A method and apparatus for making cam shafts wherein a plurality of cam lobes (12) are positioned along a hollow tubular shaft (18) and are subsequently secured thereto by expanding the shaft (18) outward, into engagement with the cam lobes (12). The shaft (18) is expanded by deflagrating a propellant (64) to generate a sudden increase of gas pressure which is introduced within the shaft (18).

APPARATUS AND METHOD FOR VENTING AND FOR MONITORING OIL LEVELS IN MARINE OUTDRIVES Oil venting and monitoring apparatus for marine outdrives. The apparatus includes an oil monitoring reservoir suitable for locating inside the boat. The reservoir is in fluid communication with the fully oil flooded head of the marine outdrive. The reservoir can be observed for an indication of oil level and oil con...

An infrared detection probe 9 is exposed to a sample 8 having the characteristics of a black body. After this, through a shutter 6, the infrared probe 9 is exposed to typical forage material F of which one wishes to detect the moisture content. The change in the output signal of the infrared probe 9 relative to the reference level VSTAB established during the exposure to the black body 8 makes it ...

The system assembles plate-type workpieces parted off by lengthwise and transverse cuts from a plate, for subsequent stacking. To the side of a roller conveyor are a lifting table. At one side of the table parallel to the truck travel direction is a further roller conveyor discharging the stacks. The roller conveyor (5) leading to the stacking mechanism contains before the section across which the...

The system has a transponder device (2) integrated to a rotation setting unit (22) of the device. A reception path (20) has a reception field with a mean detection axis and a circuit for determining a bearing of the device during the detection of an interrogation beam (F1). An emission path (21) has a gallium-arsenic type laser diode (212) emitting a laser beam (F2) in response to the detection of...

In accordance with the invention there is provided a clamping cycle which comprises: a stage of introducing a clamp 25 by advancing an extractor 8 in a jaw 9 placed in an open position and actuatable by means of an actuator 90, a stage of immobilising extractor 8, a stage of tightening clamp 25 through jaw 9, a stage of returning extractor 8, in which each stage of advance of extractor 8 takes pla...

The instrument has a fixed arm(1) connected at a hinge(2) to a movable arm(3). The angle formed by the two arms is read from a pointer(8) on an indicator(9) carried on the fixed arm(1). The indicator(9) is connected to the pivoting axis(2) by a direct mechanical transmission which permits multiplication of the angle of rotation and makes angular reading easier. In a design variant, the moving arm ...

This invention relates to an oxidation process for organic material, the process permitting virtually stoichiometric conversion of fuel to CO2, H2O and other non-organic end products. The process is characterised in that the reagent is caused to adhere around a thin layer of substrate and the oxidation takes place in an environment where there is a large excess of oxygen. The thermodynamic and kin...

Polarized electromagnetic actuator, of the type which comprises a supporting body having cavities suitable for containing a U-shaped magnetic core, a coil, a permanent magnet, a moving keeper contrasted by return springs, and a dome and a closure baseplate; the actuator has a prism-shaped main body (1) which internally forms: a first compartment (7), suitable to contain the axially hollow coil (8)...

The invention relates to a belt tensioning device with a supporting part (10) and a tensioning part (20) with a belt pulley (25) held thereon, the supporting part (10) and the tensioning part (20) being mounted in a bearing (18) in such a manner that they can be rotated relative to one another about a common axis, the supporting part (10) and the tensioning part (20) each having radially spaced we...