Abstract: A container, for carrying an infant in a supine position, having an open top which is covered by a flexible cover of resilient perforate material, provided with seat belt retention means such that it can be retained to the rear seat of a vehicle having seat belts therein, and in the event of vehicle impact, an infant is supported over a large area of its body.

Abstract: A direct injection type diesel engine including a piston having a toroidal combustion chamber wherein the ratio of the diameter of the opening of the combustion chamber to the diameter of the piston, the ratio of the diameter of the opening of the combustion chamber to the depth of the combustion chamber, the ratio of the distance between the top of a toroid of the combustion chamber and the surface of the opening of the combustion chamber to the depth of the combustion chamber and the angle of inclination of a peripheral wall of the combustion chamber with respect to the axis of the piston are each in a predetermined range of values. By these features, the problems with regard to noise and coloring of the exhaust emissions can be obviated without adversely affecting the performance of the engine.

Abstract: A vehicle tire with tractive elements for positive engagement with the ground surface is disclosed. The tire carcass has a tread including circumferentially spaced raised features. At least one flexible but substantially inextensible belt is positioned radially outwardly of the tread, and a respective plurality of retainer elements are positioned radially inwardly of the belt, the tractive elements being positioned radially outwardly of the belt and being releasably attached to the associated retainer elements for clamping the belt tightly therebetween. Inflation pressure within the carcass expands its crown region to maintain the belt in a taut condition, and at least one element of each set of associated tractive and retainer elements is positively mechanically linked to at least one of the raised features of the tread to limit circumferential displacement of the tractive elements relative to the tread.

Abstract: The present invention relates to a copolymer for high refractive lens having a refractive index equal to or higher than 1.55, obtained by copolymerization of one or more of the first monomer component having the formula (I) ##STR1## wherein R.sub.1 signifies hydrogen atom or methyl radical, R.sub.2 signifies hydrogen atom or methyl radical, and m and n signify integers 0 to 4 in total, with one or more of the radically polymerizable second monomer component, homo-polymer of which has a refractive index equal to or higher than 1.55 and, if necessary, with the radically polymerizable third monomer component, the homo-polymer of which has a refractive index lower than 1.55 and to the lens prepared from said copolymer.

Abstract: Organophosphorus esters, useful as intermediates in the synthesis of fibre-reactive insect proofing agents for keratinous materials, are prepared as follows: ##STR1## wherein: R.sub.1 is an alkyl, alkoxy, alkylamino or alkylmercapto radical with 1-6 carbon atoms a dialkylamino radical of 2 to 6 carbon atoms or a phenyl or amino radical;R.sub.2 is an alkyl radical of 1-6 carbon atoms;R.sub.3 is a divalent alkylene radical of 1-12 carbon atoms;X is either a sulphur or oxygen atom; andhal is either a chlorine or bromine atom.

Abstract: A grain sorter including a machine frame, at least one grain sorting board and a device for moving the grain sorting board in swinging movement including a mounting mechanism for mounting the grain sorting board on the machine frame in such a manner that the grain sorting board is inclined in one direction at a certain angle of inclination with respect to the horizontal, a swinging mechanism for moving the grain sorting board in swinging movement at an angle larger than the angle of inclination of the grain sorting board, and an adjusting mechanism for adjusting the angle of inclination of the grain sorting board. The mechanism for adjusting the angle of inclination of the grain sorting board is incorporated in the device for moving the grain sorting board in swinging movement within the limit set by the heights of the mounting mechanism and the swinging mechanism, so as to lower the center of gravity of the grain sorting board and avoid production of irregular vibration of the grain sorting board.

Abstract: A safety razor having a retractable blade member. The safety razor has a platform integral with the handle portion of the razor and provided with a recess formed in the upper surface thereof, a blade support member movably received by the recess of the platform, a blade member provided with front cutting edge and secured to and supported by said blade support member so as to project forwardly from the latter, a cover member fixed to the platform and cooperating with the latter in movably holding therebetween the blade support member together with the blade member, and apparatus for moving the blade member between a first position where the cutting edge is fully retracted and disappears behind the cover member and a second position where the cutting edge is fully extended. The cover member and the platform cooperate with each other in defining therebetween an elongated opening through which the cutting edge is moved in and out as the blade supporting member is moved by the above-mentioned apparatus.

Abstract: Part of a red-hot metal rod between the ends of the rod is supported and first and second bending members are displaced, preferably simultaneously, to bend parts of the rod on both sides of said part around respective forming surfaces to produce two U-bends substantially without movement of said part. Then the two end portions of the rod point in substantially opposite directions and overlap without touching one another. Preferably the rod bent in this way, still red-hot, proceeds to another location where it is bent further to produce a railway rail-fastening clip of the desired final shape.

Abstract: An automatic control system for a hulling machine including a fixed rotary hulling roll, a movable rotary hulling roll, means for moving the movable rotary hulling roll toward and away from the fixed rotary hulling roll to adjust the gap between the two hulling rolls and a main electric motor for driving the two hulling rolls. The system includes load detecting means for detecting the load applied to the main electric motor, and control means for connecting the load detecting means to the means for controlling the movement of the auxiliary shaft whereby the gap between the two hulling rolls can be automatically adjusted in accordance with the load applied to the main electric motor.

Abstract: A knife having an elongated holder provided therein with a channel to the exterior at its upper side through a slot provided in the top wall of the holder, a blade carrier having a slider slidably received by the channel of the holder, and a blade detachably secured to the blade carrier through an engagement between a projection formed on the front end portion of the slider and an aperture formed in the base portion of the blade. The knife further has a spring or the like for resiliently biasing the front end portion of the slider to bring the projection into engagement with the cooperating aperture in the blade, and a manually depressable finger portion for causing a downward movement of the front end portion of the slider to disengage the projection from the aperture in the blade against the resilient biasing force. The finger portion, which is integral with the slider through the slot, has a width greater than that of the slot, so that the finger portion cannot be depressed normally.

Abstract: A strand break-out device for preventing the formation of the fault yarns due to strand breakage when two unspun fibrous strands are spun on a common twisting spindle. A member (24) has pins (38) forming a passage means to which the strands converge during travel to the spindle and on which the strands may bear to apply force to the member. The member is pivotally mounted on a support (28) so that it may move freely on the support between limits of displacement from a mean, stable disposition. If a strand breaks the force applied by the remaining strand moves the member beyond the respective limit whereupon the member moves to a further position wherein the pins distort the path that the remaining strand would otherwise take. This distortion is such as to cause the remaining strand to break.

Abstract: An arrangement of electric motors which are coupled together both mechanically and electrically comprises series pass elements and current sensing devices in the power circuits of the respective motors, each current sensing device having an output voltage which is proportional to its motor current, and which is applied to a respective linear operational amplifier having an output which controls the equivalent resistance of the series pass element (and thereby the magnitude of motor current). A single reference voltage is applied to all the linear operational amplifiers, so that, for example, if the motors are similar, each will transmit the same torque regardless of any difference in its internal impedance.

Abstract: The invention relates to a filter with automatic cleaning using a hydraulically actuated sprinkling device. According to the invention, a carriage carrying tubes is driven by a hydraulic double-acting actuator. The working chambers of the hydraulic actuator are connected by off-take pipes to the cleaning liquid distributing circuit. Switching members control through the medium of electrically controlled valves the selective entry of the cleaning liquid into the off-take pipes. The device according to the invention can be used in an installation where air filtering is necessary, such as for example an air conditioning installation.

Abstract: Apparatus for cleaning the surface of a rotating roller (1). First and second cleaning blades (8, 9) each have an edge extending axially across the surface of the roller and adjacent thereto, the edges being parallel and directed against the direction of rotation of the roller. The edge of the second blade (9) is disposed behind the edge of the first blade (8) relative to the direction of rotation. Means are provided for causing relative movement of the blades to reverse the disposition of the edges and cause the edge of the blade (9) to scrape that surface of the blade (8) which faces towards the roller. During such movement the blade (9) is moved so that its edge contacts the roller to keep a constant cleaning action. The edge of blade (8) scrapes the surface of blade (9) as the blades return to their original disposition.

Abstract: Novel L-.gamma.-glutamyl-3-carboxy-4-hydroxyanilide of the formula, ##STR1## an acid addition salt thereof, or an alkali metal or amine salt thereof, which is useful for determining the activity of .gamma.-glutamyl transpeptidase.

Abstract: An automatic safety device for a hulling machine comprising a housing, a fixed hulling roll and a movable hulling roll forming a pair rotatably mounted parallel to each other in the housing, means for driving the two hulling rolls and means for forcing the movable hulling roll to move toward the fixed hulling roll. Each hulling roll has fitted thereover a metallic annular member and a resilient annular member in the indicated order. The automatic safety device includes detecting means for detecting that at least one of the resilient annular members of the hulling rolls has reached a predetermined wear limit radius, and a safety control electric circuit connected to said detecting means and including warning means and/or means for interrupting the operation of the means for driving the hulling rolls.

Abstract: A seat belt assembly provided with belt webbing, a bracket, a buckle, and a tongue co-operable with the buckle, and one of the bracket, buckle, or tongue is provided with a distortion area which is under stress when the assembly is strained to the first stage of overload.

Abstract: A shaver unit comprises at least one blade unit, a case member and a cover member. The case member has a blade accommodating space defined therein for accommodating the blade unit while the shaver unit is not in use for shaving and a blade fitting recess for fittingly and detachably receiving the blade unit while the shaver unit is used for shaving. The cover member is detachably attached to the case member to cover the blade unit accommodated in the accommodating space. The case member further has a portion serving as a handle gripped by the user's hand during shaving.

Abstract: A servo controlled vehicle suspension which will reduce the dynamic forces imparted to the relatively high inertia structure when the relatively low inertia structure moves, as for example when the wheel of a motor vehicle encounters a bump or dip in a road. The suspension includes resilient sensing device, a pump and a valve, the valve being controlled by the sensing device to deliver oil from the pump to a chamber which expands as the low inertia structure (the wheel) moves downwardly when a dip is encountered, the valve however being controlled to open a drain port to allow oil contained in the chamber to discharge to drain with relatively little resistance when the low inertia structure encounters a bump, the arrangement being such as to reduce the variation in force between the structures.