In an electronic theft detection apparatus the passage of a resonant circuit wafer 16 through an interrogation zone formed by transmitter and receiving antennas (30, 90) (32, 92) is detected by generating sharp pulses of electromagnetic energy to cause the resonant circuit wafer to resonate for a duration following each pulse. A receiver is provided with a switch (54), signal accumulators or filte...

A tire is cast and cured in a stationary mold having an annular mold cavity, an inlet opening and an outlet vent. The mold is tilted for optimum foam flow and minimum air or bubble entrapment. A liquid reactive mixture is injected into the mold through the inlet opening and moves through the mold cavity in different directions providing two leading surfaces which meet to form an interface adjacent...

An installation for the purification of effluents, has a rake (0) an aerated sand trap (1), and adsorption stage (2), a culturing stage (3) and a final clarification stage (4). The discharge from adsorption stage (2) also passes through an intermediate clarification stage (5). No provision is made for sludge recycling between the adsorption stage (2) and the culturing stage (3). The tank aeration ...

PURPOSE:To provide a titled recorder capable of stablilizing ion recovery of an ink recovery pump without increasing the capacity of the pump by providing means for scattering and dispersing ink which is fed to the collecting space of a gutter and is sucked to the pump into the air. CONSTITUTION:The ink in an ink tank 1 us sucked by a pump 3 and is discharged to an accumulated, thereby suppressing...

_(UN PROCEDIMIENTO PARA LA PREPARACION DE DERIVADOS DE TETRAHIDRONAFTALENO Y DE INDANO . SE HACE REACCIONAR UN COMPUESTO (II), CON EL COMPUESTO (III), PARA OBTENER EL COMPUESTO (I) EN QUE N ES 1 O 2; Z ES UN GRUPO -S(O)

A process for the operation of a tank aeration installation having two aeration tanks, an initial drip-feed unit and a final clarification tank is improved by having the drip-feed unit adapted as a high-load unit with a space load in the range 2 to 12 kg/BOD5/m<3>. day, preferably around 5 kg BOD5/m<3>. day, and is so operated. The sewage input from the high-load drip-feed unit so operated to the ...

1. Method for digitally controlling the colour image formation by means of an ink jet printer using at least three differently coloured inks ejected from individual nozzles of a common print head mounted displaceable across a record medium, the ink droplets from the said nozzles being superpositioned on said record medium to form half-tone picture elements of desired composition, i.e. additive or ...

A foamable extrudate is extruded through the orifice (25), preferably arcuate, of an extrusion die (24). Immediately adjacent and downstream of the die orifice are opposed sets of curved rollers (47, 48), each having substantially the same center of curvature as the die orifice. The roller set (48) on one side of the extrudate pass line is adjustable as a set with respect to and substantially para...

The invention relates to a process for the biological purification of waste water by means of a waste water purification plant which has at least three tanks (1, 2, 3) connected together, in which aeration of waste water/activated sludge mixture is possible in all three tanks and in which, in various process steps, one of the tanks is used as clarifier with the aeration switched off. In order to a...

An improved hydraulic control system is disclosed for operating the swing tower and boom of a backhoe. The system includes a pair of hydraulic motors interconnected between the backhoe frame and swing tower. A sequencing valve is hydraulically associated with respective ends of the hydraulic motors and operates to direct the flow of pressurized hydraulic fluid to the motors for improved performanc...

Aqueous grouting compositions based on high alumina cement have the onset of setting delayed for upwards of one month by the incorporation therein of a set-inhibiting agent such as boric acid or gluconic acid delta lactone and can then be rapidly reactivated for use by the incorporation therein of a reactivator, for example lithium carbonate, to produce a high strength hardened cementitious compos...

A process, with the associated apparatus, forms molded articles from binder-containing organic fibres. The process uses pressure to achieve temperatures of more than 100 DEG C. The material is preferably in the form of fibrous mats containing up to 50% heat-hardening binder and having a processing moisture content of more than 5% and preferably 10 to 25%. The compression of the material structure...

PROCEDIMIENTO PARA LA OBTENCION DE COMPOSICIONES CEMENTOSAS. CONSISTE EN MEZCLAR HASTA CONSEGUIR UNA COMPOSICION HOMOGENEA, POR LO MENOS UN CEMENTO HIDRAULICO, AGUA EN UNA PROPORCION NO SUPERIOR AL 25% Y POR LO MENOS UN POLIMERO O COPOLIMERO ORGANICO DISPERSABLE O SOLUBLE EN AGUA, EN UNA PROPORCION DE 1 A 15% RESPECTO DEL PESO DE CEMENTO HIDRAULICO. LA COMPOSICION CEMENTOSA SE CONFORMA Y SE ENDURE...

An apparatus for generating a fuel quantity signal in an injection pump is proposed, which is provided with a pump piston deflected by a cam disk which aspirates fuel out of a fuel inlet conduit provided with a magnetic valve and expresses it into a supply line. The metered fuel quantity is obtained on the basis of a metering onset signal and an end-of-metering signal, the first being generated by...

There is described a shock absorbing stop (17) for hinge type prosthetic devices comprising a first body (19) of relatively low modulus elastomeric material positioned to make first contact with a movable force transmitting element of the prosthesis, space (21) adjacent the first body to receive lateral elastic flow of the elastomeric material, and a second body (18) of relatively higher modulus m...

This invention provides a microwave shield which facilitates uniform heating of frozen food products. The microwave shield is formed from a material which is non- transmissive of microwaves. The shield comprises a base member 31 having an aperture, and a continuous side wall 26 which extends upwardly away from the base member. The invention also provides a container for frozen foods which includes...

PURPOSE:To eliminate the adverse influences of the external floating capacity and the inductance of lead wirings affected to a semiconductor integrated circuit device by respectively providing independently isolated load resistances between a plurality of output buffers in an IC and bonding pads. CONSTITUTION:A polysilicon resistor 10 is formed in advance together with other IC forming element on ...

PURPOSE:To obtain preferable heat sink effect with an inexpensive structure by forming a heat sink fin in a structure integral with the base of a package. CONSTITUTION:Al2 is deposited on a package base 1 made of kovar or the like, and an Si pellet 3 is bonded via an Au foil on the Al2. The electrode of the pellet 3 is wired to a lead 4, and a ceramic cover 7 is sealed with glass 6. A heat sink fi...