Abstract: An agitator or stirrer mill and especially a colloidal mill, having rotating grinding impellers in a vessel, the blades of such impellers being adjustable in their inclination relatively to a radial plane of the vessel and rotating axle respectively in order to adjust the stirring and agitating intensity. This may allow treatment of agents without the use of auxiliary milling particles such as balls in the mill. Further, the blades of the impellers are individually removable and readily exchangeable in order to replace worn impeller blades.

Abstract: A first secondary valve activated by a float controls through a differential pressure acting on a membrane a main valve in the tank filling duct. The first valve is automatically neutralized to ensure draining of the pipes placed upstream the main valve unless a second secondary valve prevents this neutralization if the level of the receiving tank is beyond a predeterminated level.

Abstract: A control device for accurately maintaining the frequency of a quartz crystal oscillator. The control device includes reference oscillators and two control loops in parallel, a first digital control loop providing coarse adjustment of the quartz oscillator frequency and a second, analog control loop providing fine adjustment.

Abstract: A towing vehicle which has a frame and a drive train for propulsion of the vehicle along a roadway and which includes a turntable mounted on the frame for rotation about a vertical axis, a boom assembly fixedly attached to the turntable, a telescoping boom mounted on the boom assembly, and a cable winch mounted on the boom assembly and cooperating with pulleys such that the towing cable passes along the underside of the telescoping boom, around a pulley, and upwardly to the winch. The boom assembly is adjustable about a horizontal axis by an assembly which includes a carriage and a slider cooperating with a support cable to adjustably preselect the angular position of the pivotal boom assembly with respect to the turntable.

Abstract: The chronograph comprises a device allowing to memorize at least two lapses of time and a subtraction device to effect the absolute difference between two lapses of time or time intervals which are memorized and preselected. The subtraction device includes:(a) a first array of complete subtractors which effect a first difference between the decimals, converted in binary numbers, forming two lapses of time memorized and selected, by taking in account an eventual carry over.(b) a second array of complete subtractors adapted to take the complement of the said first difference if the subtrahend is greater than the minuend, the carry over issued from the difference between the decimals of the greatest weight being used to form the complement number, this carry over being further used as discrimination element between the said first difference and the complementary number.

Abstract: A control device for an electronic wrist-watch including a delay means and a pair of flip-flop circuits. The device is actuated by a push button switch and provides one of two possible output conditions dependent upon the length of time for which the push button is depressed.

Abstract: A control device for a battery operated watch including an electronic module including at least one push-button cooperating with at least one leaf spring provided in the watch casing. The leaf spring encircles partially the electronic module and provides the electrical connection between the terminals of the module and the poles of the battery via the push-button and provides the means for limiting the travel of the push-button and resetting the push-button.

Abstract: A method for the decoration of a transparent plastics material article comprising the steps of providing an article having a transparent plastics material body to be decorated, said article body to be decorated having internal stresses and having characteristic physical properties, and directing a pulsed laser beam having a pulse energy and a pulse duration into the body of said article, said laser beam being successively focussed by an optical focussing system in different regions within the body of said article, said pulse energy and said pulse duration being selected in dependence upon the desired extent of the decorative features.

Abstract: A captive bolt pistol device for use in the humane slaughtering of animals comprising two separable parts comprising a hollow cap or sleeve housing a fixed firing pin at the closed end thereof and a barrel housing the captive bolt and having a breech block at one end. The breech block is formed with a cartridge chamber which opens to the rear face of the breech block and to an expansion chamber behind the bolt. The barrel is slidably engageable with the cap and to fire the pistol a cartridge is placed within the cartridge chamber and the barrel and cap are interengaged and moved relative one to the other on impact of the muzzle end of the pistol with an animal's head so that the cartridge strikes, or is struck by, the firing pin. The two parts of the device are separated for reloading.

Abstract: The invention relates to a dispensing device comprising a body containing a pressurized container and an actuator which controls the spraying of a determined quantity of product which wets a piece of toilet-paper pressed against the top surface of the actuator, permitting moist cleaning at the appropriate spot.

Abstract: An electric motor, particularly a small synchronous motor, which includes a stator made in two identical portions designed to be joined face-to-face, each portion stamped from sheet metal to form a number of pole teeth as well as members for interconnecting the stator portions and for providing a magnetic return path.

Abstract: For the purpose of separating castings from the sand or similar material forming a string of moulds, each of the castings proper together with a lump of heat damaged mould material totally surrounding the casting is separated from the mould string. After having been subjected to an appropriate degree of cooling, the castings are separated from the lump material which, after sufficient regeneration, may be re-used together with the non-damaged material of the moulds.

Abstract: An electronic timepiece, wherein an oscillator drives a frequency divider and the output of the frequency divider controls via a driver circuit a display device.A short-circuit between an output of the driver circuit and a pole of the power supply causes a selector inserted between two of the stages of the frequency divider to feed to the stage following the selector, not as normally, the frequency delivered by the preceeding stage but a higher frequency. This serves for speeding up circuit testing.

Abstract: A ski pole having a handle on which a chronometer is detachably mounted. The chronometer is mounted by means of a bayonet fitting so arranged that the pushbutton is located so as to be actuatable by the thumb of the skier.

Abstract: Apparatus for manufacturing and wrapping labels comprises a table, feeding means which are intermittently operable to move a stack of sheets on said table in two directions that are at right angles to each other to blanking means comprising a blanking for severing a stack of blanks from the stack of sheets, whereafter labels can be punched out of the stack of blanks by means of a punching tool and when taken from a stack can be wrapped by wrapping means. The blanking knife of the blanking means is outwardly spaced from a punching plate and together with the latter is recessed in a portion of the table which succeeds the portion for guiding the stack of sheets. The blanking knife is moved against the stack of sheets from underneath. A blanking die and pressure plate and a guide for the material which has been blanked and punched are arranged one over the other and over the blanking knife. Said guide consists of a punching knife, which cooperates with the punching plate.

Abstract: Tool sharpening apparatus including a base member having a first support carrying a floating head and a second support for receiving the tool to be sharpened and for holding the same in proper position. A sharpening element, such as a file, is mounted for longitudinal reciprocal movement on the floating head for sharpening the tool. The floating head member is biased away from its support member and is movable vertically to move the file into and out of engagement with the leading edge of the tool so that slight pressure on the file on the forward stroke moves the assembly down into engagement with the tool, and release of such pressure when pulling the file back allows the file to be urged away from the tool.

Abstract: A hand press for a vegetable, herb, spice or fruit, such as garlic, comprises two doublearmed levers having arms of unequal length. The shorter arms constitute a pressing member and a sieve member. The longer arms constitute handles. A pinned plate is provided, which is set with pins, which protrude from the plate and are arranged in the same pattern as the holes in the sieve member. The pins are adapted to enter the holes of the sieve member when the pressing operation has been terminated and the pressing member has been removed from the sieve member.

Abstract: A voltage multiplier for an electronic time-measuring apparatus comprising cells, each of which including two capacitors, a pair of complementary field-effect transistors (FET'S) acting as switches, and an inverter comprising a pair of FET'S. The elements of the cells are such that they are capable of being integrated together with the rest of the circuit of the time-measuring apparatus.The voltage to be increased is fed via a first capacitor to the first pair of FETS'S and at the same time to the input of the inverter whose output drives with the correct phase the first pair of FETS'S, which alternatively switches the input signal to a common point of the cell and to an output terminal of the cell, thus charging a second capacitor with the opposite polarity than that of the input signal respective to the common point of the cell.

Abstract: An argillaceous and/or calcareous material, such as a fuel shale, for example an oil shale, which is capable of yielding a cement clinker, is subjected to mechanical disintegration by the particles formed thereby to repeated acceleration and retardation within a period of less than about 0.05 second, thereby homogenizing and activating them, and then sintering the disintegrated material at a temperature between about 900.degree. and about 1300.degree. C for a period between about 3 and about 10 minutes, to form a cement clinker. Other materials such as SiO.sub.2, CaO and R.sub.2 O.sub.3 (Al.sub.2 O.sub.3 or Fe.sub.2 O.sub.3) may be admixed to improve clinker properties. The sintered clinker may be further subjected to mechanical disintegration in an impact-type disintegration.

Abstract: A handle for hand tools that must be rotated during operation such as screw drivers, wrenches or the like comprises a T-shaped member including a central beam portion and a prependicular cross-bar portion. The central beam portion comprises a sleeve structure having an axially disposed blind bore adapted to receive and to be rigidly fixed to the shank of a tool at the end opposite the tool end, and the cross-beam portion comprises a handle for turning the tool. The beam portion has a shoulder adjacent the cross-bar handle portion and a bead at its lower end with a smooth generally cylindrical or slightly conical bearing surface intermediate thereof, and a sleeve is fitted around the general cylindrical surface for rotatable movement of the bearing surface during operation of the tool so that the tool can be firmly grasped and held securely in correct position by one hand of the operator grasping the sleeve while the operator uses the cross-bar handle with the other hand to rotate the handle and the tool.