The forward-run temperatures of central heating installations are according to the invention raised or lowered via feedback of the positions of the flowthrough valves from thermostat valves in the individual rooms to a central control unit. The central control unit attempts in this case to keep all thermostat valves constantly in a state of play; it raises the forward-run temperature if one or mor...

A process for producing foodstuffs, beverages and forages with a reduced content of biogen amines and preferably with a reduced content of histamine is described. People with good health are able to degradate histamine which they take up with food by a histaminase. Nevertheless, many people, female and male, are not able to perform a sufficient degradation of the histamine and if these people take...

The heat exchanger for a change-of-state accumulator, in particular for an ice PCM device, is constructed in the form of a modular insert (2). As a result, it can also be retrofitted (without structural alteration) in existing water tanks or swimming pools without structural alteration.

A multi-stage evaporator is used to remove water from the extracted distillation or stripper tower bottoms recycled as quench liquid to the quench tower of an acrylonitrile purification and recovery system. This results in a significant decrease in the amount of waste quench tower bottoms produced by the system. Use of a multi-effect evaporator represents a significant energy savings as compared w...

In plastics material extruding installation, a number of layout arrangements of conventional twin-screw extruders with double-feed twin-screw extruders are provided in various combinations in order to solve the problems of a thorough degassing of the plastics material and of an intimate admixture of the several compounding ingredients or raw plastics materials so as to obtain a really homogeneous ...

: This invention relates to a new process for the preparation of 2-(2-thenoylthio)-propionylglycine (I), characterized by the fact that a salt of thiophene-2-thiolcarboxylic acid (II) is reacted with (2-halopro-pionyl)-glycine (III) according to the scheme: (II) (III) (I) where Me is a metal, preferably sodium or potassium, whereas X is halogen, preferably bromine or chlorine. This com...

A strip 12 is unwound from a coiled strip assembly 14 in which adjacent coiled strips are interconnected by spaced tabs 20 intermittently bridging the parting lines 18 between the adjacent strips. To break the tabs 20 without bending them and distorting the adjacent metal, a finger-like body 26 acts on the opposite side of the strip to the tabs 20 to be broken and generates sufficient stress in ea...

Welded grid structure for securing underground cavities such as mine roads, consisting of two sets or grid systems of parallel straight bars disposed in parallel planes and connected by welding to a third set of bars that extend perpendicular to the first two sets of bars. The bars of the third set are bent to enable them to intersect the planes of the first and second sets but not all intersectio...

The tool is intended for injecting antiseptic products into a post (P). The hollow sleeve (1) serves as a reservoir for the product. The injection unit which it carries at its lower end comprises a first cylinder (8) in which there slides the piston (12) carrying the head (14) on which the spring (15) bears. A second cylinder (23) is fixed obliquely to the cylinder (8) and carries an injection nee...

A shelf panel is provided with reinforcing ribs 5 in the central region of the shelving, projecting below the plane of the shelving 1 and 2, and with side ribs 3 and 4 which aid the reinforcement of the shelving and also act as male and female interlocking members to lock adjacent panels together.

A slide valve carburetor includes an idle fuel system to deliver fuel to the central downstream portion of the main air induction passage. The idle fuel delivery system is sequentially occluded as the driven device attains full-throttle operation, and can be designed to allow passage of supplementary fuel at full or partial throttle operation.

Novel tetrahydro-pyridinyl-indoles of the formula I wherein R is selected from the group consisting of amino, trifluoromethyl and methylthio, R1 and R2 are individually selected from the group consisting of hydrogen and alkyl of 1 to 3 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having antidepressive, antiparkinson and antiemetic activity and their...

Mass and force meter with a frame, a load support guided parallely and vertically by parallel guiding means comprising at least two flat springs lying in two at least substantially parallel planes lying one above the other, with a rigid measuring system and a resilient transmission element transmitting only a part of the weight of the mass to be measured or of the force to be measured to the measu...