Abstract: Two molds, each comprising an open top container having side walls, end walls, and a bottom, are provided for forming blocks of snow or ice which are used to form a complete domed structure such as an igloo. The configuration of one mold is such that blocks formed by it will fit together to form a circular upwardly converging wall, and the configuration of the other mold is such that blocks formed by it will fit together to form a circular dome which rests on the upper surface of the wall to complete the structure.

Abstract: Metal rolling process and mill wherein the ratio in peripheral velocity between a pair of upper and lower work rolls is so controlled that a metal may be rolled to a desired shape or to close thickness tolerances.

Abstract: In a vehicle disc brake of the single sided sliding reaction caliper type the drag on the friction pad assemblies is taken by a drag-taking member. The caliper is slidably mounted for movement relative to the disc on a guide in the form of a single pin which is located on the same side of the disc as that on which an actuator for the brake is located.

Abstract: Apparatus for increasing the densichamber driven by a compression ram having a preset stroke and preferably being hydraulic, and a movable backplate facing the piston and being provided with means for producing a reaction force in opposition to the compression force of the ram and less than the maximum compression force exertable by the ram. Means for binding the compressed bales is also provided. Preferably the reaction force is maintained constant regardless of displacement of the backplate and this can be achieved by using a second hydraulic ram to which fluid is supplied at a constant pressure.

Abstract: A wheeled carriage for recreational purposes comprising a platform large enough for a person to stand on with his or her feet side by side, and a single front wheel and a single rear wheel mounted to said platform so as to be capable of rotation about spaced parallel axes and with the centers of the wheels lying in the longitudinal vertical central plane of said platform, the wheels being of rounded profile to enable the platform to tilt laterally in use, the platform being offset above or below the axes of the wheel, whereby the carriage can be used either way up, the platform being above the wheel axis when the carriage is one way up so as to require a high level of skill to maintain the carriage balanced, and the platform being below the wheel axes when the carriage is the other way up so as to require a lower level of skill to maintain the carriage balanced.

Abstract: A blow molding method and machine and more particularly a method and machine for extruding a multi-layer parison for blow molding, wherein at least two layers of molding plastics, each plastic compensating the poor or undesirable physical and chemical properties of the other plastic and/or each having a different color are forced to flow through different passages having an annular cross sectional configuration, and are joined at the junction of a short passage to be extruded into a multi-layer parison.

Abstract: Disclosed is a process and apparatus for multi-strand continuous casting wherein a plurality of strands may be spaced apart from each other by a distance only dependent upon the dimensions of a copper plate and water-cooling jacket of a mold because a multi-strand mold oscillation mechanism may be installed independently of the spacing between the adjacent strands and the amplitude of oscillation of each mold may be suitably adjusted depending upon the casting conditions but independently of each other. Cast products emerging from the molds are withdrawn through a multi-strand roll apron or bending unit, a multi-strand casting bow, a multi-strand straightener and a multi-strand table by a multi-strand-pinch-roll stand consisting of a plurality of coaxial multi-pinch-roller assemblies, the individual pinch rollers in each assembly being driven independently of each other.

Abstract: An electronic recorder is disclosed which acts as an elapsed time indicator for monitoring the operation of at least one item of equipment and providing display or other indication of the total time for which the item of equipment has been energized. The recorder includes a solid-state oscillator and a divider which together constitute a time-base for producing clock pulses only when the item of equipment is in an energized state. A solid-state counter counts the clock pulses and a solid-state memory stores information corresponding to the counter total. So that the recorder can retain its cumulative total count even when de-energized with the item of equipment, the memory is of the non-volatile type which retains its stored information even when de-energized. A solid-state display means displays the counter total to provide an indication of the total time for which the item of equipment has been energized.

Abstract: A machine for making a composite article including a sheet material blank and an injection moulding thereon, comprises first and second cavity tools which are relatively movable between open and closed conditions and in the latter define a cavity, and a core tool movable relative to the cavity tools between open and closed conditions in the latter of which the core tool and first cavity tool together define a blank receiving cavity and the core and first and second cavity tools together define a mould cavity, the second cavity tool lying between the first cavity tool and the core tool when the tools are in open condition and supporting guide means for guiding a blank falling under gravity from a blank magazine to a position in the path of relative movement tools and between the core tool and the second cavity tool when the tools are in open condition, stop means on the core tool extending into the guide means to support a blank therein above the tools when the tools are in closed condition and to permit the b

Abstract: A method of reproducing characters or symbols in place of orthodox typing or printing comprises applying ink to successive points on the paper or other surface by means of a transducer forming a typehead, and building up each character by steering the transducer under the control of digitally stored information which may be selected from the store by a keyboard. The characters can be built up as a series of overlapping dots and each character may have a number of key points, the transducer moving along one of a limited number of pre-set paths from each key point to the next.

Abstract: An electric smelting furnace in which a hollow electrode with the wall thickness depending upon the depth of current penetration is disposed vertically within the furnace and spaced by a desirable distance from the furnace bottom, and the top of the hollow electrode is connected to a duct for discharging the furnace off-gases and charging the raw materials into the furnace after they are preheated by the furnace off-bases in the duct and prereduced in the hollow electrode.

Abstract: Disclosed is a shearing device wherein a shear main body including an upper and a lower blades one of which is moved toward or away from the other for shearing an ingot is provided with eccentric means so that when the shear main body swings in synchronism with an ingot to be cut which is continuously moving, the upper and lower blades may be moved substantialy horizontally in the direction of the passage of the ingot especially when the shearing of the ingot occurs, thereby preventing the "nose bending" of the ingot.

Abstract: A rolling mill capable of rolling a sheet metal into a final product under a low rolling pressure without the need of wrapping the sheet metal around a pair of work rolls. The pair of work rolls are rotated at different peripheral velocities, and the tensions exerted to the sheet metal entering and leaving the pair of work rolls as well as the degree of reduction are so controlled that the ratio of the peripheral velocity of one of the pair of work rolls which is rotated faster than the other work roll to the peripheral velocity of the other work roll may be substantially maintained equal to the elongation ratio of the thickness of the metal sheet entering the pair of work rolls to the thickness of the metal sheet leaving the work rolls.

Abstract: Apparatus for forming a cylindrical element from a fibrous web, the element having a predetermined density characteristic radially thereof, comprises an endless belt, guide means about which said belt is entrained and which are arranged to define a loop in said belt to which loop the fibrous web is fed, said guide means being arranged so that, in use, said loop extends around substantially the entire circumference of the element forming in said loop, means for driving said belt so as to thereby cause the fibrous web to be fed into said loop and there to roll up on itself, and means for progressively increasing the diameter of said loop, said loop diameter increasing means including a control member about which said belt is entrained and which is movable to vary the dimensions of said loop, and means for moving said control member so as to increase the diameter of said loop at a rate which is a function of the linear speed of the belt and the length and weight per unit length of the fibrous web so as to obtain

Abstract: An anti-skid brake control system which is adapted to control the brake of a wheel comprising a brake release switch that produces a control signal to release the brake on detection of the onset of skidding of the wheel, a sensor for producing an electrical signal proportional to the angular acceleration of the wheel, a charging circuit which is responsive to the acceleration signal and produces a corresponding output signal so that the amplitude-time curves of the two signals cross-over one another after the acceleration peak resulting from release of the brake, and a brake re-applying switch which compares the acceleration signal and the output signal from the charging circuit and produces a control signal to re-apply the brake after the cross-over point.

Abstract: A rolling mill wherein a pair of upper and lower work rolls are rotated at different peripheral velocities with the peripheral velocity ratio being substantially equal to an elongation ratio at which a sheet metal is rolled, and the tensions exerted to the sheet metal entering and leaving the pair of work rolls are controlled in such a way that the velocity of the sheet metal entering the work rolls may be maintained equal to the peripheral velocity of one of the pair of work rolls which is rotated slower than the other while the velocity of said sheet metal leaving the work rolls may be maintained equal to the peripheral velocity of said the other work roll. Rolling may be accomplished without the need of wrapping the sheet metal around the work rolls, and the rolling pressure may be reduced to a degree comparable RD process.

Abstract: A low temperature gas-fired or electrically heated oven and warming unit for domestic purposes having a chamber enclosed by walls and a door at the front. The chamber is variable in volume, for example by being vertically extensible by having overlapping, relatively movable wall portions at the side and back and a door which automatically adjusts to the volume of the chamber for example by being of the tambour or roller shutter type. The unit can be fixed by the top section under a kitchen wall unit and extended downwards for use. Removable, lazy-tongs linkages at the sides of the unit control the extension of the chamber and are jointly operated by a single adjustment control. Shelf supports on the linkages move to alter the spacing of the shelves as the chamber volume is varied.

Abstract: Disclosed is a drum type flying shear wherein both or either of blades carried by upper and lower drums, respectively, is caused to describe a part of a non-circular locus whose major axis extends vertically when a blank or hot strip is almost sheared off.

Abstract: A valve is disclosed wherein a valve member is disposed in the chamber of a valve body in such a way that the valve member is axially displaceable so as to open or close the valve, and a pilot cylinder is provided in order to encounter the unbalanced force acting on the valve member due to the difference in pressure between the primary and secondary sides of the valve. When the valve is wide opened, the liquid flows at the same speed, and the pressure loss is reduced to such an extent as almost equal to the pressure loss of a gate valve in wide opened position.

Abstract: A device for mounting a cassette box for storage and/or display purposes comprises a planar base part and a flap hingedly connected to the base part and extending within the periphery of the base part, the flap having at least one opening therein for engagement with a locating stud of the cassette box, the flap being dimensioned to be received and trapped in a cassette box with the opening therein engaged with the locating stud to mount the cassette box in the device.