Abstract: In the regions of a drying zone within a tunnel (2) exposed to fire danger a sample of the air streams is drawn off via an intake pipe (11) disposed transversely to the longitudinal extent of the tunnel. The sample is supplied to a measuring device which contains two regeneratable filters which are alternatingly acted upon by the sample via switch-over valves. The measuring device contains a sensor acted upon by the cleansed gas which sensor reacts to CO and is connected to an alarm system and or an extinguisher device. From the extinguisher device an extinguisher agent line (16) leads to an extinguisher pipe (14) which is likewise in the direction of flow of the air steam guided through the tunnel (2) arranged transversely to the longitudinal extent of the tunnel (2) and provided with extinguisher agent exit nozzles.

Abstract: A coil of stock material from which air turning vanes are formed. The material includes a central striated bend area which facilitates the formation of increments of the material severed from the coil into desired arcuate configurations. An air guide assembly formed of the vanes of the stock material is likewise described for conducting air with high efficiency about the bends between adjacent ducts.

Abstract: A service mountable non-polar capacitor assembly is disclosed. The assembly includes a pair of polar tantalum capacitors disposed in axial alignment the anode rods of the capacitors being mechanically and electrically connected as by welding. An insulating sleeve encompasses the body portions of the capacitors leaving projecting portions extending beyond the ends of the sleeve. The void space within the sleeve between the opposed ends of the capacitors may be filled by a polymeric insulating and rigidifying material.

Abstract: The cassette has a pivoting flap which covers the mirror and which may be fixed in an open position or in a closed position. In order to facilitate assembling the flap on the cassette, hinge stubs are formed on the flap and the cassette has a slot through which the flap is inserted from the rear face of the cassette. The flap is held in place by a bracket fixed to the rear face of the cassette and constituting a spring forming a fixed stop element that co-operates with flats formed on the flat close to the pivot axis.

Abstract: A balloon structure is comprised of two heat-sealingly connected polymeric sheets forming a gas encompassing chamber and a connected inflation stem and is characterized by a separable integral tether-defining border strip surrounding at least a portion of the chamber, whereby the tether may be separated from the body of the balloon at all but an anchor point to provide a means for restraining the balloon. Optionally, the tether defining strip portions of the sheets may themselves be heat-sealingly connected, selectively to provide a double width tether or a tubular inflatable tether.

Abstract: A method of permanently surgically treating glaucoma is disclosed together with an apparatus for effecting such treatment. In accordance with the method, an implant is disposed at a filtration site through the sclera the implant including a through going aperture leading from the anterior chamber to a bleb formed in the conjunctiva. The implant is retained in the sclera by radially compressing the same during the insertion procedure and thereafter releasing the radial compressive forces whereby the implant expands and is prevented from dislocation. An apparatus for effecting the implant is likewise disclosed, the apparatus including a cannula having a bore constraining the insert, a plunger for shifting the insert through an angularly offset opening in the cannula and a retainer filament engaged in the passage in the insert for controlling the precise location of the insert during the implant and for releasing the insert from connection to the cannula when the precise position is achieved.

Abstract: A flexible radiation shield apron is disclosed. A characterizing feature of the apron resides in the provision of an encasing fabric sleeve unconnected to the sheets providing radiation resistance, in the areas generally below the waist of the wearer whereby such portions of the apron readily bend with the movements of the wearer. Preferably the sheets providing radiation protection are separated at their peripheries by portions of the encasing fabric sleeve which intrudes between the perimeters of the sheets below the waist further to increase suppleness.

Abstract: A planetary speed reducer includes a drive roller having a drive surface, a stator having a concentric drive surface, the respective drive surfaces defining an annular space therebetween. A plurality of rotatable planet rollers have peripheral portion in frictional driving connection with the said drive surfaces of the roller and stator. An output shaft is connected to an assembly which carries the planet rollers.

Abstract: An article for applying index marks in precise superposed relation on a pair of juxtaposed receiver sheets includes a carrier having an adhesive backing, a first index mark on the surface of said carrier opposite said adhesive and a second index mark congruent with and covering the first index mark, the second index mark being defined by a dry transfer component.

Abstract: A classifying receptacle for the temporary storage of automobile fasteners and method of employing the same is disclosed. The receptacle comprises a replica of an automobile and includes storage compartments correlated positionwise on the receptacle to the likely location of fasteners to be removed from an actual automobile. The receptacle is used by disposing parts removed from the automobile in the compartments of the receptacle most closely analogous to the location from which the fasteners were removed from the actual automobile, reassociation of the removed fasteners with the automobile being expedited by reference to locations within the receptacle corresponding to complemental locations on the actual automobile.

Abstract: A housing, composed of large-area plates, of a heavy crusher for the treatment of rock or recycling material is held together with simple lug and cotter connections instead of by welding or screw unions. This allows transportation in the knocked-down state, erection by unskilled workers on the site and use and - for later relation - simple disassembly.

Abstract: A jaw crusher is equipped for the first time with a horizonal crushing chamber and, for replacement of gravity for the conveyance of the material being crushed through the crushing chamber, with an abutment comprising a chain conveyor. The mechanism for applying the crushing force on the jaw rocker (10) is selected so that the action is equivalent to that of a double bell-crank jaw crusher even for hardest material and in particular for recycling material such as reinforced concrete.

Abstract: A connector member for coupling flexible cylindrical tubular duct to the wall of a fibrous duct is comprised of a pair of parallel metal strips, the opposed marginal edges of which are connected to a flexible central strip. A clamp and a slip joint are provided on the respective strips for maintaining the metal strips in a cylindrical configuration, with the ends of the strips overlapping. One said strip including outwardly facing gaskets disposed at opposite sides of the wall of the fiber duct, the other strip including an inwardly facing gasket clamped about the flexible cylindrical ducting.

Abstract: Apparatus for purifying a melt which, besides one or more impurities to be volatilized, contains essentially a light metal, in particular aluminum. The apparatus comprises a vacuum processing vessel, a vacuum pump, one or more conduits for supplying the melt to the vacuum processing vessel and means for spraying the melt into the vacuum processing vessel. According to the invention, the vacuum processing vessel is provided with discharge means for discharging impurities expelled from the melt. The discharge means are connected to a means for separating the impurities in solid or liquid form, connected to the vacuum pump used for maintaining the subatmospheric pressure in the vacuum processing vessel. Connected to the vacuum processing vessel are at least one supply conduit and one return conduit for the melt, the supply conduit being provided with a pump for the melt to be purified and a spray nozzle for atomizing the melt supplied by the pump into the vacuum processing vessel.

Abstract: A speed reduction drive is comprised of a chain carrying a plurality of rollers, the chain being operatively connected to an output shaft via a sprocket or the like. The rollers of the chain progressively pass between a rotating drive pinion and a stator surface whereby the chain is driven at a linear speed which is a function of the diameter of the drive pinion and the arcuate surface of the stator, the speed of the chain being reduced by differential drive effects.

Abstract: An improved flexible connector material is comprised of a pair of metal strips between which is mounted a flattened tubular configuration including upper and lower flexible sheets or layers encompassing a compressible glass wool batt. The insulation is bonded preferably to the lower layer of a pair of spaced flexible glue lines whereby the tendency of the insulation to become compressed and change in configuration is overcome.

Abstract: A resistance welding pin for connecting insulation batts to ducts comprises a head having a shank and a sharpened tip remote from the head. The shank, adjacent the tip, includes an abutment against which a welding electrode may bear, the electrode being passed through an aperture or passage in the head.

Abstract: A resistance weld pin for securing insulation to duct interiors is disclosed. A characterizing feature resides in the provision of a layer of heat activated adhesive on the under surface of the washer of the weld pin, which adhesive is melted in the course of forming a resistance weld and bonds to the surface of the insulation, defining an annular air seal surrounding the pin.