Apparatus (10) for providing isolation and interconnection between the tip (1) and ring (2) conductors of a telephone line and data communications equipment to be connected thereto, such as a modem or other device (12). The apparatus serves also as a circuit for dialing the telephone, responsive to dialing signals applied thereto. All switching is done electronically, eliminating the need for mech...

Disclosed is a parallel plate radial transmission line having parallel plate spacing of less than lambda /2 and which utilizes a specific higher order mode, preferably the first higher order circumferential mode. Undesired modes are suppressed by mode supression slots formed in one or both of the parallel plates and which are oriented parallel to the current flow lines of the particular mode that...

Speech signal-produced peak-values of speech levels and speech signal-produced minimum-values of speech levels are recorded in such a way that, after recording of a peak value or minimum value, this value is gradually reduced or increased until a new peak value exceeds the instantaneous recording threshold or a new minimum value falls below the instantaneous recording threshold. From the relevant ...

PURPOSE:To improve the reliability of data transmission by detecting an error regarding a buffer memory provided to a control circuit by adding an error detection code, such as a parity check code, in a transmission frame. CONSTITUTION:When transmitted data from a transmission processing part is written in a transmitting buffer memory 1, a block check code for each word is generated by a block che...

PURPOSE:To realize a fault detection with a high degree of reliability, by intentionally giving an erroneous data to a checking circuit itself and then detecting the error. CONSTITUTION:The data (a) and (b) plus the data of (c) and (d) are delivered alternately from output terminals D0 and D1 of a memory part 14 respectively. An intentional error data is indicated by 28, and the result of this par...

A method of making a composition suitable for application to metal products for anti-scaling purposes or to produce legible markings on said products, said method comprising; providing first and second soluble alkali metal silicate solutions, preferably soluble sodium silicate solutions having silicate ratios of about 2.0 to 2.8 and 3.0 to 3.9, respectively. The two starting solutions are mixed to...

The heat-insulating render containing polystyrene has a relatively low solid mortar bulk density which is obtained as a result of saving cement as binder by means of admixing hydrolysed silica.

A method for the mechanical washing of dishes, wherein the soiled dishes are treated with an aqueous alkaline liquor having a pH of from 8 to 13 which contains at least one compound inhibiting alkaline earth metal ion precipitation, rinsing and recovering cleaned dishes comprising using finely-dispersed, water-insoluble silicate compounds having a calcium-binding power of at least 50 mg CaO/gm of ...

A process for decontaminating textiles contaminated by bacteria comprising washing said textiles with a detergent composition free of any peroxide bleaching agent, and then treating said textiles with a peroxide bleaching agent in an aqueous bath at a pH of between about 9 and 13, at a temperature of between about 40 DEG to 70 DEG C., in the presence of calcium, for a time sufficient to decontam...

A syringe system for storing medication and dispensing dosed quantities thereof, including a housing, a storage chamber in the housing, a dose chamber in the housing and in direct communication with the storage chamber, a first piston for introducing a fluid into the storage chamber and subsequently for introducing by pressure a predetermined volume of the fluid into the dose chamber, and a second...

PURPOSE:To obtain an AGC voltage amplifying circuit used for the double side- band and the single side-band, by cascading two complementary emitter follower transistors through an impedance and by connecting a capacity to the output. CONSTITUTION:In the radio receiver for a double side-band DSB and a single side-band SSB, a switch S2 of an AGC voltage amplifying circuit 7 is switched while interlo...

Compounds of the formula I, where the P and P1 groups represent hydrogen, alkyl, heteroalkyl, aryl or aralkyl groups, which are optionally substituted or form a ring, n is a number between 0 and 2, m is a number from 1 to 3, R1 and R3, which can be identical or different, represent alkoxycarbonyl groups, CN, NO2 or acyl groups, and R2 is an aryl group or a heteroaryl group which can optionally be ...

Compounds of formula I wherein P and P1 groups represent hydrogen, alkyl, heteroalkyl, aryl or aralkyl groups, optionally substituted or forming a ring, n is an integer between 0 and 2, m is an integer from l to 3, R1 and R3, that may be the same or different, represent alcoxycarbonyl groups, CN, NO2 or acyl groups, whereas R2 is an aryl group or an heteroaryl group that may be optionally s...

An oxygen supply unit contains an oxygen producer and at least one mask. It has a housing (1) with a cover (3) at its front side (2) and a carriage (8) is guidably movable out of the housing at the front side in a downward direction. The housing is attached (6) at its upper side (4) against an underside of an arm rest (5) of a passenger seat.

Disclosed is a construction of an endoscope with channels into which medical instruments are to be inserted, and more specifically, an arrangement of components constituting the channels in an operating section of the endoscope, and a mounting structure for fixing the channels in the operating section. The endoscope comprises an insertion section, the operating section, an insertion member having ...

Application part for a rigid or flexible endoscope with a viewing channel and a working channel extending in parallel with the viewing channel, the working channel having a guide and a defined stop for an insertable fibreoptic waveguide that can be coupled to a laser light source, and the working channel having an optical system for concentrating the laser light emerging from the fibreoptic wavegu...

An endoscope includes a main body for holding an operating mechanism in place and a casing within which the main body is enclosed. The casing includes a hollow body-like casing body with one of its end portions serving to stabilize a base end of the main body and its other end portion having an opening portion permitting a protruded portion of the main body to be extended of the casing and a cylin...