This invention relates to polyarylene sulphides (PPS) produced in known manner from optionally substituted halogen benzenes and aromatic polyhalogen compounds, optionally in combination with other polymers, fillers and/or reinforcing fibres, which contain certain N-containing organic bases for reducing the elimination levels of acidic, corrosion-producing volatile constituents and for improving the flow properties thereof.

In the particular embodiments described in the specification, an inverter connected to a DC source and a load includes two or more inverter units operating on a phase basis, and three connecting wires, consisting of two wires connecting each inverter unit and the power source and one wire connecting each inverter unit and the load, are arranged close to one another or twisted together. With this arrangement the distributed inductance is reduced not only for the wires connecting the DC source and...

The base of a transistor constitutes the input of an amplifier arrangement, to which an input signal may be applied. The emitter of this transistor is coupled to the negative power-supply terminal by means of a first resistor. The collector of this transistor is coupled to the input terminal of a first current multiplier circuit, whose output terminal is connected to the output of the amplifier arrangement and to the emitter of the transistor by means of a second resistor. The first current mult...

A gear crank comprising a crank having a pair of crank arms and an adapter having a chain gear, the adapter being provided with two groups of each two stays, the stays in each group being positioned at the rear side in the drive-revolving direction of each crank arm and in a range in which the respective crank arms are subjected to the maximum torque.

A method of reoxidizing a partially-reduced ceramic. The partially reduced eramic is heated in a chamber having a non-oxidizing atmosphere. An oxidizing gas is then introduced into the chamber at a rate which is sufficiently slow that cracking will not occur.

The archery bow has springs in the string system at each limb of the bow. Due to a high spring rate the springs do not deflect appreciably when the bow is drawn but do deflect substantially when the bow limbs pass the at-rest position after being shot. This allows the limbs to overtravel the at-rest position and be cushioned thereby reducing the shock to the bow and its components.

An improved electrode assembly is provided for use in a cell for the production of metal by electrolytic reduction comprising a nonmetallic conductive electrode, such as a carbon electrode, having a top surface and a central current carrying support shaft received in a central bore extending axially downwardly from the top surface. Conductive fin assemblies extend radially from the central support shaft in the electrode, the fin assemblies comprising a plurality of gate members extending radiall...

An improved supercharger or blower (10) of the Roots-type with reduced airborne noise. The blower includes a housing (12) defining generally cylindrical chambers (32, 34) containing meshed lobed rotors (14, 16) having the lobes (14a, 14b, 14c, 16a, 16b, 16c) thereon formed with an end-to-end helical twist according to the relation 360.degree./2n, where n equals the number of lobes per rotor. Blower housing (12) also defines inlet and outlet ports (36, 38). The inlet port includes a longitudinal ...

An improved smoker's pipe of the dry bowl type. The pipe is comprised of a hollow stem having a mouthpiece mounted at one end and a bowl assembly mounted at the other end. In one embodiment of the pipe the bowl assembly includes an outer bowl removably mounted on the stem and concentrically spaced around an inner, combustion bowl. The outer bowl has an upper cylindrical portion and a lower skirt portion with a notch therein for removably receiving the stem portion. The combustion bowl has a lowe...

A MOSFET device comprises a semiconductor wafer which includes a drain region of first conductivity type contiguous with a wafer surface. A diffused body region of second conductivity type extends into the wafer from the wafer surface so as to form a body/drain PN junction which has a polygonally-shaped intercept at the wafer surface. A plurality of source regions of first conductivity type extends into the wafer from the wafer surface within the boundary of the body region. The source regions d...