This invention concerns biaxially oriented polypropylene films containing from 1 to 40 percent by weight of a hydrocarbon resin, the resin being substantially miscible with the polypropylene, and the film having a crease retention of at least 50% as measured by ASTM D920-49. The hydrocarbon resin is preferably a terpene resin, a hydrogenated synthetic resin or a compatible rosin. Crease retention ...

The process is an arc jet CVD diamond deposition process with very low methane, less than 0.07%, and the addition of water. The resulting material is characterized by a narrow Raman peak, a relatively large lattice constant, and a charge carrier collection distance of at least 25 microns. Also disclosed. is a particle detector device which makes use of the diamond material according to the invent...

A sanitary napkin (1) comprises a liquid-permeable topsheet (4), a liquid-impermeable backsheet (5) and an absorbent core (6) interposed between the topsheet (4) and the backsheet (5). The topsheet (4) and backsheet (5) extend outwardly from opposite side edges of the core (6) to form side flaps (10). A supplementary flap (12) comprising an elastic band-like sheet is attached in its stretched stat...

A transformer fault analyzer provides on site fault analysis of electrical distribution transformers, relying on patterns of parameter variation in transformer winding ratios, winding resistance and magnetizing impedance, and comparison of these parameters to predetermined values. In a preferred embodiment the analysis considers transformer ratio balance and magnetizing impedance balance. The tran...

The novel jumper switch means of the invention is directed to by-passing an electrolyzer in a row of electrolyzers electrically connected in series to permit removal of the by-passed electrolyzer for maintenance. The jumper switch means comprises one or more internal bus bars connected to suitable arrays of switches. Said internal bus bars are dimensioned in such a way that when substantially all ...

NOVEL JUMPER SWITCH MEANS FOR ELECTROLYZERS ELECTRICALLY CONNECTED IN SERIES The novel jumper switch means of the invention is directed to bypassing an electrolyzer in a row of electrolyzers electrically connected in series to permit removal of the by-passed electrolyzer for maintenance. The jumper switch means comprises one or more internal bus bars connected to suitable arrays of switches. Said ...

A belt for use in an extended nip press comprises a base fabric (22) having the form of an endless loop, the inner surface (20) thereof being coated and partially impregnated with a polymeric resin e.g. polyurethane to render it impervious to liquids and the outer surface (19) of the belt having flat monofilament yarns (28) defining channels (32) for water attached thereto.

18 PROCEDE D'OPTIMISATION DU DEBIT D'UN CANAL DE COMMUNICATION EN PARTAGE DE TEMPS 1. Procédé de recherche par un mobile d'une tranche de temps libre sur un canal de communication en temps partagé pour l'émission d'un message normalisé comportant au moins une indication de position géographique, le mobile participant avec d'autres se trouvant dans une même zone géographique à un système anti-colli...

(57) A standard industrial pressure blasting paintstripping apparatus works with abrasive media and commpresed air, which is combined in the mixing chamber of the media flow valve located directly under the pressure pot and conneted to the push line and the conveying line. This equipment works quite well providing the pressure pot and the mixing chamber have an equal pressure. The moment a pressur...

An extension case in which an oil pan is accommodated includes on its left and right side surfaces mount receiving recesses for receiving a pair of lower mounts, respectively, and further an oil drain recess on the right side surface to which a drain bolt is exposed for draining oil from the oil pan. The oil drain recess is formed upwardly of the right mount receiving recess with a partition wall ...

The device for the automatic adjusting, according to the pressure, of the length of the connection rope between a buoy and a skin-diver comprises a means (1) for winding and unwinding a rope (C) for the connection between a floating buoy and an immersed skin-diver, for determining the automatic adjusting of its length following to the indications supplied by a sensor (6) for the taking of the pres...

Machine for the rapid automatic checking of the threads of nuts and bolts comprising a first rotating disk 9 which carries the threaded members 11 which are to be checked and a second disk 22 rotating together with first disk 9 and bearing a corresponding plurality of checking devices 25 which automatically screw and unscrew a threaded test device into and out of the threaded member which has to b...

Power actuator device MP1, controlled by a microprocessor MCU, provided with diagnostic points that are able to detect an anomaly and write a corresponding code word in a shift register b0-b7 in which, after transmission of the code word to the microprocessor MCU, the shift register b0-b7 is automatically reset to zero by the rising edge of the chip select signal CS that enabled the transmission. ...

Programmable rotating punching machine, characterised in that it comprises on a base 2: a carriage 12 able to move orthogonally to the direction of advancement of the strip of sheet metal 6 being worked, at least one pair of opposite rotating rollers 36, 38, mounted on said carriage 12, one of which 36 supports a plurality of punches 44 and the other supports a plurality of dies 40, which during t...

A description is given of an ultrasonic piezoelectric transducer comprising a polarized strip 1 of piezoelectric material with a surface A orientated towards the medium in which the ultrasonic wave is to be propagated and an opposing surface B. On the surface B of the said polarized strip 1, opposite the surface A orientated towards the propagation medium, there is placed a depolarized ceramic str...

A machine for longitudinally cutting a strip-like material of undefined length n is described, said machine comprising at least one plurality of disc-shaped blades 33 rotating about an axis of rotation substantially transverse to the direction of feeding f of the strip- like material. A carriage 63 carrying means 101,103,121,123 for cutting the blades 33 is provided, said carriage being displaced ...

A cord-cutting machine for machining a strip-like material N comprises at least one first cylinder 19 carrying at least one disc-shaped blade 33 and a second cylinder 21 carrying at least one counter-blade 43 co- operating with said blade. The counter-blade 43 comprises: a support 41 mounted on said second cylinder 21; on said support two annular members 43A,43B arranged next to each other and pre...

Elementary cell which can be combined with others for pin matrix displays. A plate has a housing for a ball which has a multi-coloured surface divided into n sectors. By means of an electromechanical system, the ball can have a combination of n positions for displaying the sectors through a display window. The window is provided with a reflecting mirror. An optical lens element, projecting into th...

The described apparatus comprises a suction unit (2) detachably mounted on a support platform (12) provided with four wheels (37) to be operated independently by corresponding movement motors (36). The movement motors (36) are governed by an electronic control unit (35), driven by a receive unit (33) based on radio pulses (32a) transmitted by a transmit unit (32) operable manually by an operator. ...

The novel jumper switch means of the invention is directed to by-passing an electrolyzer in a row of electrolyzers electrically connected in series to permit removal of the by-passed electrolyzer for maintenance. The jumper switch means comprises one or more internal bus bars connected to suitable arrays of switches. Said internal bus bars are dimensioned in such a way that when substantially all ...