PURPOSE:To improve recovery speed of a plunger keeping the noise suppressed by a method wherein a means with which the inside and the outside of a bobbin are continuously connected when the plunger is projected out of the bobbin for a certain length. CONSTITUTION:A plunger 29 is projected out of and drawn back into a hole 22 provided to the center of a DC solenoid 21. The portion 29a of the plunge...

A bobbin holder (1) having a pivotally mounted bobbin frame (2) is provided at its two support arms (3a, 3b) with a respective freely rotatably mounted tube plate member, of which one plate member (7) has a centering projection (10) for receiving the bobbin tube (5), has axially therebeside at least one thread catch means (12) and has a mounting projection (11) which concentrically surrounds a mou...

The invention described is the coating in situ of polytetrafluoroethylene (PTFE) on interacting mechanical parts. A paste of PTFE and mineral oil is prepared and diluted with further mineral oil. The mechanical parts are operated until the parts are burnished with PTFE.

An electromagnetically-operated adjusting means for the valves of displacement machines, comprises an oscillatory spring-mass system 12-20 which can be held by electromagnets (1,2) in each of two end positions of maximum oscillation deflection so that at least two discrete switching positions are achieved. The electromagnets and their armature(s) 17 are designed as part of a damping means and, at ...

A device is provided for sensing the condition of a pneumatic tire preferably of the type used on an automobile wherein the tire is mounted on a tire rim and the tire is subject to normal vibrations. The device comprises a housing, a band for mounting the housing to the tire rim, a sensor for monitoring the condition within the tire, circuitry operatively connected to the sensor for generating rad...

An article for storage and transport of biogenic fluids such as blood, blood fractions, intravenous feeding solutions and liquid phase-delivered drugs is formed of an additive-free uncharged thermoplastic polymer of vinylidene fluoride copolymerized with a monomer.

A non-conductive composite sheath protects an inductive logging device contained therein and is designed to be attached to the bottom end of a drill string to allow the logging device to be run to the bottom in highly deviated or partially obstructed wellbores therefore allowing logging of desired wellbore intervals. The sheath comprises a composite, electrically non-conductive wall (10) which hou...

Inertial measurement of the angular rotation and translational motion of a structure can be provided by a pair of vibrating accelerometers 10, 12 aligned in a side-by-side arrangement with their force sensing axes A<1>z, A<2>z in the same plane and vibrated to and away from each other in that plane along an axis normal to their force sensing axes.

Apparatus for measuring inertial specific force and angular rate of a moving body by means of a plurality of accelerometers mounted on mutually perpendicular axes, each accelerometer Ax, Ay, Az, being mounted for vibratory movement along its respective axis. The apparatus further includes a drive for vibrating each accelerometer to produce output signals and a signal processor for deriving from th...

An inert, water-immiscible inert organic liquid having gas transport properties, water and a suitable emulsifying agent are formed into a stable gel by emulsifying a mixture of the same, concentrating the emulsion to form a gel phase and a liquid phase, and separating the two phases. The resulting gel can be used as an ointment or cosmetic for skin irritations or wounds, or as a coating in industr...

There are disclosed thermosetting resoles containing chemically bonded boron, tungsten and/or zirconium atoms. These modified phenolics are prepared by reacting a resol with zirconyl acetate, boric acid, or a tungsten carbonyl/pyrrolidine reaction product. The metal containing resoles of this invention are useful, for example, as reimpregnation resins for carbon/carbon composites.

Multifilament bundles are impregnated with an ultraviolet curable resin to form a composite material suitable for use as a strength member in cables and other applications. The inventive coatings obtain good wetting of the filaments, allowing rapid penetration into the roving or yarn. A much faster coating and curing operation is obtained as compared to prior art methods. Fiberglass strength membe...

A down-hole signal generator for a mud-pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud passing along a drill string, a throttling member displaceable with respect to a casing 10 to modulate the mud pressure for the purpose of transmitting measurement data up the drill string, and a turbo- generator incorporating an electrical generator 44 within the casi...

Vacuum-regulated system for automatic disengagement of a manual clutch in a vehicle for eliminating mechanical rattle from the vehicle gearbox during idling. A servo unit in the system is joined to the clutch releasing arm and is controlled by the gearbox shift lever for moving the release arm to disengaged position when the lever is in neutral position. The control cable of the clutch pedal is co...

1. A rubber composition having a high ageing resistance of the rubber-to-metal bond, characterized in that it contains from 0.01 to 10 % by weight of a compound from the group comprising Mo(CO)6 , W(CO)6 , mixed metal carbonyls with pi-acceptor ligands and derivatives of these complexes of mixed metal carbonyls with pi-acceptor ligands with hydrogen, metal, halogen, oxygen, sulfur and nitrogen lig...

1. Stable aqueous alkylhydridopolysiloxane emulsion, characterized in that it contains about 0.1 to 0.8 % by weight of a onohydric alcohol with 1 or 2 C atoms or of the dihydric alcohol and 0.5-2 % by weight of a trihydric alcohol.

Process for the production of porous, powdery polypropylene, and utilization thereof. Hot solutions of polypropylene in pentaerythrol ester are slowly cooled down to approximately room temperature, forming a solidified mass, after which it is extracted with an extractant in which pentaerythrol is soluble. Before extracting, the size of the solidified mass may be reduced mechanically. After extract...

A process is disclosed for the rapid dissolution of a water soluble polymer by mixing the polymer with water and using a hydrophilic wetting agent, wherein the water is introduced under normal mixing conditions into a prepared water-in-oil polymer dispersion that is free of wetting agent, the wetting agent being added after dilution of the prepared water-in-oil dispersion with water. It is preferr...