An automatic selvedger has a pair of longitudinally spaced and transversely throughgoing main rolls rotatable about respective parallel axes and guides and a drive that pass the web longitudinally and continuously from one of the main rolls to the other main roll in a travel direction perpendicular to the roll axes and with the web spanned tightly longitudinally between the main rolls and lying ge...

A body is irradiated by a primary radiation beam; the scattered radiation produced thereby is incident on a detector device consisting of a plurality of detectors and is a measure for the density distribution of materials in the primary beam. However, this gives rise to multiple scattered radiation which disturbs the measurement. The present invention provides a device in which disturbance by mult...

A surface of a thermoelectric module, whose other surface is provided with heat-dissipating vanes, is attached to the outer surface of a body. The remainder of the outer surface of the body is provided with an insulating layer, and the heat-dissipating vanes are ventilated. The body is part of a device for processing materials, during the processing of which by the device heat is produced. The the...

An apparatus having a grooving tool for carving grooves in a tire tread drives the tool transversely of the tread while varying the elevation of the tool so as to carve curvate, chevron, herringbone, lazy-S, or other non-linear grooves. Means for orienting the cutting edge of the tool normal to the actual direction of traversing movement is disclosed. The elevation of the tool is controlled by a s...

Flexible resilient flame-retardant and intumescent polyurethane foam is prepared from a reaction mixture comprising a polyether polyol, an organic polyisocyanate, a blowing agent, a surfactant, a catalyst, a flame-retardant and hydrated alumina; the amount of flame-retardant is 30 to 160 parts by weight/100 parts of the polyol. Preferably, the mixture also comprises a low-viscosity linear polyeste...

PURPOSE:To shorten the period of construction as well as to reduce the working area by a method in which the body-contact welding of cords and the assembly of brace are performed in parallel. CONSTITUTION:One side of a plate tool 40 to determine the direction of the rack 5 of cords 6 is provided with an escape notch 41 for the semi-circular portion 6a of the cord 6 and also both sides of the tool ...

PURPOSE:To increase the reliability of data in a memory by erasing all data in the memory when preset data stored in a specific area does not coincide with preset data at a preset point of time. CONSTITUTION:The destruction of data in a memory is discriminated and if the data is destroyed, all data in the memory are erased automatically. In this case, when the power source is turned on or recovers...

A pleated media filter element is disclosed which includes pleat spacers which are an integral structural part of the pleated media. The construction of the pleat spacers is accomplished by scoring on the unfolded media a continuous line pattern upon the portion of the media which, when folded, forms a pleat tip of the element. When the scored media is folded into pleats the patterns each define a...

APPAREIL D'ELECTRO-CHIRURGIE DONT LE PANNEAU DE COMMANDE, ENTIEREMENT LISSE, COMPORTE DES ECHELLES LUMINEUSES 1-4 D'INDICATION DU NIVEAU DU SIGNAL DE SORTIE, DES TOUCHES SENSITIVES 5 A 8 DE SELECTION DU MODE DE FONCTIONNEMENT A PROGRAMMER, DES TOUCHES SENSITIVES 9 ET 11 D'INCREMENTATION ET DE DECREMENTATION DU NIVEAU DE SORTIE POUR LE MODE CHOISI ET DES DISPOSITIFS D'AFFICHAGE NUMERIQUE 15 ET 1...

Extruded synthetic resinous thermoplastic foams of increased cell size are obtained when using volatile fluid blowing agents by incorporating a cell-size enlarging agent into the extruded composition, the cell-size enlarging agent being liquid at the foaming temperature and generally soluble in the heat-plastified foamable mixture.

A system for conveying different commodities such as different types of coal between a number of points, such as mines 10, 12, 14 and silos 34, 36, 38, 40, has a number of different paths linking the points defined by conveyor units. Stacker conveyors 16, 18, 20, 22 are used to deposit coal in different stockpiles and reclaimer conveyors 24, 26, 28, 30, 32 are used to reclaim the coal from the sto...

Closed cell phenol-aldehyde foam is prepared by a method which includes a novel frothing and curing technique. An admixture containing a liquid phenolaldehyde resole resin, a volatile blowing agent, and a surfactant is frothed to produce a stable froth containing closed cells. The cell walls are formed of the liquid resole resin and the closed cells are expanded by the blowing agent in gaseous pha...

A spherical powder of a hydrolyzed ethylene-vinyl acetate copolymer or its carboxyl modified product, is prepared by a method which comprises mixing 100 parts by weight of (1) a hydrolyzed product of an ethylene-vinyl acetate copolymer having 5 to 50% by weight of vinyl acetate group content or (2) a carboxyl modified product of the aforementioned hydrolyzed product obtained by reacting said hydro...

L'INVENTION CONCERNE UN APPAREIL PERMETTANT D'APPRECIER L'EFFICACITE D'UN TRAITEMENT QUI EST EFFECTUE PAR UN ENVOI DE FLUIDES SOUS PRESSION DANS UNE LIGNE D'INJECTION 9 ET COMPRENANT UN ORGANE DE CALCUL 23 MUNI DE MOYENS 26, 27 DE LIAISON A DES CAPTEURS DE PRESSION ET DE DEBIT 19, 20 MONTES SUR CETTE LIGNE EN SURFACE ET RELIES A UN ORGANE D'ACQUISITION DE DONNEES 24 DEVANT RECEVOIR DES DONNEES ...

1530571 Ammoxidation process for the preparation of nitriles, SUN VENTURES Inc 7 Jan 1977 [1 June 1976] 00509/77 Addition to 1518413 Heading C2C The invention comprises an ammoxidation process for the preparation of a nitrile wherein reactant gases comprising a C 1-6 alkyl substituted hydrocarbon oxygen or a molecular oxygen-containing gas, and ammonia are passed over an ammoxidation catalyst in...

Relatively long microfilaments made from a low heat conductivity glass composition. The microfilaments are used to make insulation and/or filler materials. The microfilaments are made by forming a liquid film of molten glass across a coaxial blowing nozzle (5), applying a blowing gas (10) at a positive pressure on the inner surface of the glass film to blow the film and form an elongated hollow tu...

Relatively long metal microfilaments made from film forming metal material are described. The microfilaments can be used to make superior high strength structural materials and/or can be used as reinforcing materials in plastic and rubber compositions. The microfilaments are made by forming a liquid film of molten film forming metal material across a coaxial blowing nozzle 5, applying a blowing ga...

A heat exchanger adapted particularly for use in embedded radiant heating systems and including a plurality of webbed tube mats and associated manifolds, wherein the webs are separated from their adjacent tubes along tear lines at at least two longitudinally spaced portions of the mat.

Device for the weight compensation of a vertically and movably mounted headstock (10) on a drilling and milling machine, consisting of a D.C. motor (51) with associated power supply unit (54) for tensioning a cable pull (35) connected to said headstock (10), the control being effected by continuously comparing the tensioning force of the cable pull (35) and the weight of the headstock (10).