There is described a device for operating flexible elements (15, 16) essentially made up of a rotating drum (3) around which are wound flexible elements (15, 16) to be advanced, a container (2) of the drum equipped with a series of rubber rollers (6) which hold said flexible elements (15, 16) in adherence with the outer surface of the drum and which has a longitudinal slot which permits passage of...

Equipment for tensioning belts on armchair, settee frames etc., including a carriage 15 equipped with pneumatic jacks at regular intervals, an anti-tilting locking device 11 which is also pneumatically operated and a tension roller 4 controlled electrically for the gauged tensioning of the belt to be fixed on the frame.

A pair of upright manifolds (2) are coupled to one another by a plurality of horizontal pipes (10) having, at the coupling ends thereof, a cut slanted with respect to the pipe axis. A portion of the above pipes (10), arranged at the bottom, have the longer end portions thereof downward turned, whereas the pipe portions arranged at the top have the longer end portions upward turned.

The invention concerns an independent (1) device in particular for emergency work on structures (2) of great height, such as sky-scrapers, towers, dams or similar, such as for example work by specialist staff on floors for the evacuation of people or for extinguishing fires. In accordance with the invention, the above mentioned device includes at least a mobile unit (3) along at least a wall (4) o...

The inclined grid fixed between two suitably framed (5) side plates (4) has a number of parallel longitudinal stepped elements (2, 3). Some of these (3) are immovable, and fixed to cross members between the plates (4) under the grid. The stepped elements (2) between the fixed elements are separately mounted on crossbars (6) fixed to the suspended side frames (7). A motor (11) drives two shafts wit...

In a regulating and control device of gas delivery in mixed boilers including a support body (2), valve means (3) for choking the gas flow on which an attenuator (8) is active interlocked with an electromechanical control unit (9), a lever (33) of the first type, pivoted in the support component (2) includes a resistance end (33a) inserted between the electromechanical control component (9) and th...

A three-way valve for use with boilers adapted to supply both heating hot water and domestic hot water, comprising an upper portion (20) and a lower portion (30) coupled together through a threaded section (33) and sealing members (35A, 35B) so as to allow for a relative rotation thereof. The upper portion (20) comprises an output duct (4) in communication with a heat exchanger (11), and an axiall...

The invention concerns a machine for knitting fabric, which is electronically programmable, in particular for the production of knitted fabric for the manufacture of basques and/or similar, including a support frame carrying at least an array of needles for knitting fabric with multiple needles for making adjacent stitches, a transverse rotary roller component for the selection of some predetermin...

The invention concerns a device for the opening and closing from inside a room of window frames with battens, in particular window shutters, characterised by the fact that it includes a box suitable for being housed in a customized manner and locked in a removable manner in the room protected by the window frame, there being at the two ends of the said box, connected by simple insertion and lockin...

The invention concerns a device for the remote control of the supply pressure of components in high pressure mixer heads. The device includes an injector with pin valve activated by a remotely controllable hydraulic actuator in opposition to a high value contrasting elastic force, in order to adjust axially the position of the pin in relation to the injection nozzle.

This invention concerns a transfer trolley in particular for blocks of stone, such as blocks of granite, supported on a permanent support carriage, between a handling position and a processing position in which a travelling slide assembly, which can be anchored to a double-acting sliding cylinder, tows the support carriage to the required position through one or more intermediate positions.

3,6'-Di-N-acyl-kanamycin A salts of formula (I) are new: Ac' = a N-protecting acyl gp. HA = an organic or mineral acid. Prodn. of amikacin precursors of formula (II) is effected by (a) reacting kanamycin A (III) with an Al salt in an aq. organic medium; (b) reacting the resulting Al complex with a reactive deriv. of Ac'OH; (c) opt. decomposing the Al complex in a basic medium; (d) adjusting the pH...

In a hybrid propulsion system for vehicles in which a first propulsion unit, of internal combustion type (10) transmits motion to at least one wheel (26) of the vehicle via transmission members including at least one clutch (14), a second propulsion unit (20) of electrical type, is connected to the driven element of said clutch via means such that the motion generated by one of said propulsion uni...

The pallet (1) comprises a top grid (3) and a bottom grid (2) made up of crosspieces (5) and being connected by spacer members (4); the crosspieces (5) and spacer members (4) are both fabricated with segments of extruded plastics, preferably recycled PVC, sections (10, 20).

A cutting method of stone with high frequency oscilating and equipment are published in this invention. 60Hz/50Hz power source is converted into 200Hz-1000Hz high frequency power source by oscilation generator, which is converted into mechanical energy with high frequency oscilation through oscilating energy mechanism to supply high frequency oscilating energy for cutting cutter, the stone is stru...