Method for monitoring the installation for the propulsion and energy production of a ship of the mechanical propulsion type, according to which the various elements of the installation are fictitiously gathered into groups which may be each controlled by a single parameter.

Method for reducing the nitric oxide emissions of the exhaust gases from a diesel engine by means of a controlled recirculation of the exhaust gases, which are cooled off and humidified in a water bath. According to the invention, the exhaust gases created in the diesel engine (1) are conducted into the wet cleaner (3), and part of the exhaust gases conducted into the wet cleaner (3) are returned ...

The high-pressure end of fuel injection pumps and injection nozzles of diesel engines stands only cyclically under high pressure. During most of the time, the high-pressure line (4) is relieved from pressure. During this time, a second fuel can be introduced in the high-pressure end via an additional fitting (7), inasmuch as the fuel already contained therein yields without opening the nozzle (6, ...

A compressed gas driven, liquid intensifier pump (10) of the type employing a single acting reciprocating piston (16) wherein liquid is discharged from the pump (10) only during the ''pull'' stroke of the piston rod (28). The reciprocating piston (16) can be employed first as a double acting and then as a single acting piston after the operating pressure has reached a preset trip point.

A compound pneumatic valve of the bang-bang, spool type; electro-mechanically driven by a pair of face type opposing solenoids which in turn are driven by a pulse width modulator signal. First and second cylinder parts are alternately pressurized and vented through asymmetrical slot style ports to function in the two horsepower range having bandwidths of 30 to 45 Hz.

A nut (1) has a longitudinal slit (6) through the annular wall of the nut (1) and is of resiliently expandable form, at least a major portion of the interior screw threaded bore in the nut (1) being shaped and dimensioned so that the nut (1) is a stiffnut i.e. has a substantial resistance to rotation when applied to a conventional bolt. Preferably one end of the nut (1) has a ramp-like profile (5)...

A crankshaft arrangement comprises a first shaft section (6) supported for rotation by first bearing means (3). An eccentric part (10) extends from the first shaft section (6), first connecting mans being present at a free end of the eccentric part. A second shaft section (7) is supported by second bearing means (4) for rotation about an axis coaxial with and spaced from the axis of the first shaf...

Separated type flywheel assembly having first and second flywheels (18), (20), and more particularly a flywheel assembly, in which the first flywheel (18) is divided into a support plate (19) and a slidable friction plate (17), provided with a damper means (24) for damping vibrations with the force of a spring, and a friction damper means (60) for damping vibrations with a frictional force, the cl...

Split type flyweel assembly having a first flywheel (18) and a second flywheel. This flywheel assembly is provided with a damper means (24) adapted to damp vibrations with the force of a spring, and a friction damper means (60) adapted to damp vibrations with a frictional force. A pressure plate (46) is moved slidingly in the axial direction by a release lever (52) to carry out clutch engaging and...

Device for driving movable objects along relative trajectories alternatingly in the same direction (parallel) and in opposite directions and application to objects and animated signs. The invention relates to a mechanism comprised of toothed wheels E1, E2, E3 etc. provided with small rods B which activate lever rods D1, D2 etc. of which the extremities animate objects O1, O2, O3 (screens, filters,...

A drive transmission for converting rotary motion from a prime mover to reciprocatory motion of an output member comprises an input shaft (5) mounted for rotation about a first axis and capable of being rotatably driven by the prime mover, and a second shaft (21) mounted for rotation about a second axis parallel to the first axis. The shafts are coupled by gears (19, 20) for counter-rotation at eq...

A pipeline joint protector which encircles the exposed end portions of abutting lengths of pipe which are wrapped or covered with concrete weight coating substantially throughout their lengths with only short end sections of the pipe exposed. The pipeline protector extends radially outwardly from the central pipe to approximately the diameter of the weight coat material and substantially spans the...

Weld joint for metal pipes. The object is to provide a weld joint which is easy to make and which has a clean surface inside the pipes. The ends of the pipes to be joined are flared and between the inner conical surfaces of the flared pipe ends is arranged a cylindrical metal sealing ring under axial compression, the edges of the ring being elastically bent inwards by said inner conical surfaces o...

A gas compressor or blower comprises a cylinder (28) defining at least one compression chamber, a piston (29) reciprocable and rotatable in the cylinder, and port means allowing induction, compression and exhaust of gas as the piston reciprocates and rotates. A crankshaft assembly applies reciprocatory movement to the piston (29), the crankshaft assembly including at least one crankshaft (6, 7, 10...

A two mass vibration isolator particularly suited to a linear reciprocating machine. Vibration into and out of the machine is attenuated by an isolator placed between the machine and its mounting frame. The isolator is an elastomer with a damping ratio of at least 0.1 sandwiched between two retainers.

The inefficiency of the nitrogen stripping section of a high purity oxygen-producing air distillation plant is reduced. This allows increased recovery of byproduct argon and in some cases increased recovery of refrigeration work also. The improvement is obtained by evaporating kettle liquid with condensing argon rectifier vapor in two sequential stages, to yield vapor streams respectively having m...

A device for applying on webs of material (B) air or some other flowing fluid, namely for drying the web, has air channels (9) with nozzle areas (D) provided with individual air outlets (14) arranged on both sides of a transversal plane (V) extending in the longitudinal direction of the air channel (9). The air outlets (14) face a guiding surface for the flow of air. Two wall sections provided wit...

Machine gun comprising a barrel (6) firmly mounted in a housing (4) and a locking unit (50) guided so as to move in the housing, said unit being preloaded by a pressure spring (52) into its extreme forward position and movable into its extreme rear position by compressed gas. The locking unit (50) is designed with an L-shape having a locking arm (56) behind the barrel (6) and a compensation arm (5...

A pair of rotating gimbals (12, 14) independently nutate and precess the line-of-sight (24) of a sensor (22) to generate a rosette pattern (26).

An automatic device with interchangeable interface for the introduction of cartridges in the bifilar or monofilar magazines of automatic and semi-automatic arms, comprising a plate with a cartridge-guide ledge (1), placed above a vertical track (2) for transferring said cartridges into a suitable housing (10) from which a piston (6) introduces the same one by one into an arm magazine.