A water heater including a water tight tank having a tank wall and top and bottom head members welded thereto. A combustion chamber and burner are mounted beneath the bottom head. A pair of concentrically arranged jacket members are mounted around the tank wall with the space between the jacket members serving as a flow passageway through which combustion air flows downwardly to the combustion cha...

A rotating canopy umbrella includes a canopy assembly that is free to rotate about the axis of a fixed center post. Also included in the design of the umbrella are disks of bearing material used to reduce surface friction during rotation.

This is an improved apparatus and method for guiding an automated guided vehicle, particularly a floor maintenance machine. This invention discloses electronic means which permit guiding the vehicle toward a point that is laterally offset a desired distance from a retroreflective target, generally in front of the machine, by reference to that target. A series of targets may be sequentially referen...

A ski boot and a ski boot incorporating a releasable ski binding which attaches the boot to a ski. The boot-binding includes a first connecting portion secured to the ski, a second connecting portion secured to the boot, a plunger combination for releasably coupling the first and second connecting portions so that the boot may release in any direction, and an actuation device engaging the plunger ...

A binding coupled ski boot shaft delatching device is described in which the pivotable shaft 12 of the boot can be latched with the lower part 14 of the boot via a latching lever 20. The latching lever 20 is pivotable inwardly into a latching position by a sole clamp 64 against a spring force 34. In this way a falsification of the preset release characteristic of the sole clamp through possible in...

A method for vulcanising an elastomer product including the steps of heating under pressure the elastomer product placed in a mould by supplying a heating medium such as steam, stopping the supply of the heating medium when the elastomer product rises to a predetermined temperature or after the lapse of a specified period of time, supplying a pressurising medium sich as nitrogen gas at a pressure ...

A control system for a continuously variable transmission has a transmission ratio control valve having a spool for controlling oil supplied to a cylinder of a drive pulley to change the transmission ratio. The transmission ratio control valve has chamber at both ends of the spool. By controlling the flow rate of oil supplied to the chambers in accordance with a desired transmission ratio, the spo...

A differential gear unit includes a viscous coupling for restricting the differential rotation of output gears (27, 29), with the conneciton of one of the parts (31) of the viscous coupling to one output gear being by way of a releasable connecting device so that the viscous coupling can be brought out of operation when required, e.g. under vehicle braking. The connecting device comprises a sleeve...

A cushion is obtained by impregnating an aqueous polyurethane polymer emulsion in three-dimensionally interwined fibers (1), removing an excessive aqueous polyurethane polymer emulsion and hardening the resultant material with heat. The surface of each fiber is covered with a polyurethane resin, and the fibers are bonded by the polyurethane resin (2) at intersected portions of the fibers (1).

The present invention relates to novel coating compositions for use on preformed foam products, comprising an aqueous admixture of a PVC copolymer dispersion and a polyurethane dispersion together with suitable additives as wetting agents, pigments dispersants, fillers and the like. The coating compositions may be applied by dipping, spraying, or any other suitable application means well known to ...

A control system for a vehicle engine coupled with an automatic transmission, which comprises a controller operative to control a controllable subject, such as ignition timing, in the vehicle engine, in accordance with a controlled variable determined for the controllable subject, for varying an engine output of the vehicle engine in response to an operating condition of the vehicle engine and fur...

PURPOSE:To form an oxide superconductive film where pattern accuracy is favorable and film quality is favorable by forming a first film pattern which includes silicon in the area excluding a superconductive film pattern formation area and accumulating au oxide superconductive film, and then reacting the film pattern and the oxide superconductive film with each other. CONSTITUTION:An oxide silicon ...

REINFORCED PLASTERBOARD The present invention is directed to a process for the manufacture of plasterboard optionally strengthened with reinforcing materials by mixing gypsum capable of rehydration with water and optionally reinforcing materials and subsequently pressing the resulting mixture, characterized in that polyisocyanates are added to the mixture used for producing the plasterboard and/or...

Building blocks made from a resinous composition comprising: ethylene vinylacetate resin consisting of 72 to 95 wt.% of ethylene and 28 to 5 wt % of vinylacetate and balancing excipients wherein the copolymer resin shares in the whole composition for 63 to 72 wt. % and the excipients are comprised of foaming agent, azodicabonamide as main agent sharing 2 to 3 wt. % and of cross-linker, dicumyl per...

The invention relates to a method and a device for measuring the flow of a multiphase fluid formed from a continuous phase and from a dispersed phase composed of bubbles. According to the invention, a local sensor having a dimension in the direction of flow which is substantially smaller than that of the bubbles is used to generate a signal having different levels according to the phase in contact...

FUEL COMPOSITIONS Coking in and around the injector nozzles of indirect injection compression ignition engines is reduced by means of distillate fuel with which has been blended suitable concentrations of: (a) organic nitrate ignition accelerator, and (b) hydrocarbyl-substituted succinimide, or (a) organic nitrate ignition accelerator, (c) hydrocarbyl amine having from 3 to 60 carbons and from 1 t...

The present invention relates to an additive for fuels based on hydrocarbon which is characterized by a content of oxo compounds of bicyclic terpenes.

A method and apparatus for cleaning the interior of ductwork or similar conduit from within, the apparatus comprising a small, pneumatically powered and controlled sled of a size maneuverable inside the duct, with nozzle means provided for directing cleaning and disinfecting fluids, under pressure, at the walls of the duct, to execute a method of cleaning and disinfecting.

A phenol derivative of the formula NU-A-X-R1 wherein NU is a defined bis-phenolic nucleus including a hydroxyphenyl-hydroxynaphthyl; hydroxyphenyl-hydroxyindanyl, hydroxyphenyl-hydroxybenzothienyl or di-hydroxyphenyl-ethylene or vinylene nucleus; wherein A is alkylene, alkenylene or alkynylene which may be interrupted by phenylene or other linkages, wherein R1 is hydrogen, or alkyl, alkenyl, cyclo...

A method and device (30) for detecting a partial discharge pulse in a high voltage conductor (10) in the stator of a motor, turbine generator or the like, comprising a conductive plate (32) having an insulated face (34), an insulated signal conductor (36) spanning the insulated face (34) of the plate (32), and means (38) for transmitting an electrical pulse produced in the signal conductor (36) to...