L'invention a pour objet les composés de formule (I) : (I) dans lesquels ou bien A et B représentent chacun un atome d'hydrogène, ou bien A représente un atome d'hydrogène et B un radical OH, ou bien A et B forment ensemble une double liaison carbone-carbone, et Z représente un atome d'hydrogène ou le reste d'un acide carboxylique. Les composés de formule (I) présentent d'intéressantes propr...

A pressure vessel is disclosed for holding fluids and the like. The vessel includes an outer shell fabricated of a composite material. A damage mitigating material is integrated within the outer shell, with a major thickness of the shell being disposed inside the damage mitigating material and a minor thickness of the shell being disposed outside the damage mitigating material. The minor thickness...

The principle of angular deviation produced from the difference in horizontal distance between the two eyes of human beings is utilized in the present invention "Tunnel Type Monoscope Imitated Sterescopic Television Production Method and Structure", in which the picture which appears on the surface surface taken by a monoscope will be refracted in double angle by lenses to form a picture similar i...

A method and apparatus for transversely sealing multi-ply diaper webs including an ultrasonic horn assembly above the web and an anvil assembly below the web, and including orbiting the two assemblies with points of orbit intersection at two spaced apart points on the web and with one of the assemblies being resiliently mounted so as to yield when the two assemblies come in contact during sealing.

2.1 The invention is based on the object of organising a method for achieving a multilayered lining of an underground pipeline to be renovated in such a way that the multilayered structure can be built up in two method stages, extending the choice of materials of the individual fillers and of the resin systems. This object is achieved by first of all a multilayered lining tube being introduced in ...

Sliding security door 1 for armoured rooms, comprising a guide rail 4 for rollers which allow the door to slide. The door 1 has vertical locking shafts 12a, 12b which, at the end of the sliding of the door, when it reaches the closing position, automatically fit into means 17 secured to the ground, preventing a warping of the door and reinforcing its structure. The shafts 12a, 12b make contact via...

Antifouling pigment for painting structures which are immersed in seawater, in particular for hulls, the composition of which includes an active ingredient based on metal chelates obtained from β-diketone coordination compounds with a metal, and which can be used either in combination with a toxic or repellent material such as copper oxide or other conventional derivatives.

Method for making metal screens and the layout thus obtained, whose production cycle calls for two feeding lines, respectively, a first one having a series of plates preferably continuously advancing step by step, arranged parallel and equidistant from each other, and a second one orthogonal to the preceding one, feeding a support plate previously cut according to the distances existing between th...

The hinge (1) for eyeglasses, of the type including a lens-bearing front (11) having two temples (3) hinged thereto, has a shaped element (5) and a support (9). The shaped element (5) has a protruding tab (7) defining an L-shaped base (6) which can be detachably accommodated in a complementarily-shaped first seat (8) formed in the end portion of a temple (3). The shaped element (5) is detachably a...

The engagement device (1) has a first seat (6) having a longitudinal extension and formed in a first end (2) of a lens (3) of a pair of eyeglasses. A second seat (7), also formed in the first end (2) of the lens (3), has an essentially circular configuration and communicates with the first seat (6). The engagement device (1) also has a longitudinal bridge (8) connected to a second end (4) of a tem...

Double twist spindle for coupling of yarn for winding, suitable for producing yarn 11 obtained by winding of a first thread 12 on a second thread 13, said spindle 10 having an axial conduit 17, associated with a rotating plate 18 with a radial exit hole 26 inside which is guided the first thread 12, being fed from at least a first reel 15, placed concentrically about said axial conduit 17, said fi...

Machine for treatment of wastes, characterised in that it has a chamber 2 for collection of wastes, having a plurality of spray channels 6, 7, and in the lower part 8 of said chamber there is a waste compacting element 9 for transfer to a perforated compacting chamber 10, and a tank 15 for collection of the liquid substances forced out from the perforated chamber, said chamber being provided with ...

To determine the density of a stream of fibrous material (17) on a cigarette manufacturing machine (1), two different measurements are performed, the first (18) of which is capacitive and supplies a first signal as a function of the density of the dry component and of the density of the liquid in the stream of fibrous material, and the second (19) of which is optical and supplies a second signal i...

To determine the density of a stream of fibrous material (17) on a cigarette manufacturing machine (1), two different measurements are performed, the first (19) of which is capacitive and supplies a first signal as a function of the density of the dry component and of the density of the liquid in the stream of fibrous material, and the second (18) of which is ultrasonic and supplies a second signa...

The auxiliary worm 205 is actuated by means of an electronically controlled motor 47, having speed and phase transducers 147 connected to a logic unit 50-51-52- 53 which, by appropriate transducers 146, picks up the velocity and the phase of any given point of the kinematic chain transmitting the motion to the manufacturing turntable and to the main worm 105. In order to create a cyclical vacuum i...

The process can be used to obtain holes with a high length/diameter ratio, typically above 100, and with smooth walls, suitable for application as optical guides, by means of a focused laser beam, and comprises the use of a laser with the following emission characteristics: wavelength less than 600 nm, mean power greater than 1 W, pulsed emission with a peak power of more than 10 kW and a pulse fr...

The device comprises a pulse forming unit for exciting pulsed electrical discharges in a gas, comprising: an energy storage unit 307 connected to a voltage source; a switch 309; a pair of electrodes 3.1, 3.2 located in the region 5 where the discharge is to be initiated; and a pre-pulse unit 313 connected in parallel to the said electrodes 3.1, 3.2, the closing of the said switch 309 connecting th...

The steering system comprises an upright element 5 bearing the hub connected to the suspension 1, 3 by means of articulation 4 which define the steering axis X-X, said axis X-X being appropriately inclined to form the necessary forward travel AV. The upright element 5 is connected to the handlebars 21, 23 at the top by articulated means of transmission comprising: at the top end of said upright el...

A sealing device for rolled-up-fabric packages, in particular plastics packages, comprises a first substantially rigid clamping element (4) made of plastic material and adapted to partly encircle a sealing area of said one package, and a second clamping element (7) made of plastic material and adapted to be engaged with said first clamping element (4) according to a plurality of positions, so as t...

The machine comprises a pair of pincers 3, 4 openable and closeable to define a common passage 7 with a variable section such as to alternatively permit the periodical feed of a continuous tube 34 filled with minced meat and its periodically choking for the formation of a peduncle 36 connecting one sausage 37 with the next in the chain. There is a binding unit 16 which, with closed pincers 3, 4, c...