Abstract: A method and apparatus for preparing a specimen adapted for electron microscopy comprises an evacuated specimen-processing chamber. A specimen having a surface to be processed is placed inside the processing chamber A beam-blocking member is placed close to the processed surface so as to block a part of an etching beam A first etching step is performed by directing the beam at the specimen via the blocking member. Then, the specimen and the blocking member are moved relative to each other. Finally, a second etching step is performed by directing the beam at the specimen via the blocking member. As a result, the specimen becomes a thin film and it can be observed with the electron microscope.

Abstract: A propelling apparatus includes a plurality of propellant cylinders series-connected to each other to be propelled by receiving a pushing force from behind, joints for series-connecting the propellant cylinders, a propellant head connected to a forward-most end of the propellant cylinders to be pressed into the earth, a leader member constituting a leading end of the propellant head, the leader member being rotatable about an axis of the propellant head by receiving a driving force from a driving device. An inclined pressure-receiving face is formed at a forward portion of the leader member for receiving an earth pressure in association with the underground propelling movement of the propellant head and steering the propellant head toward the direction of application of the earth pressure to the pressure-receiving face. The joint includes a flexible joint which is pivotally flexible about a transverse axis extending normal to an axis of the propellant cylinder.

Abstract: Valve actuating hand tools for inflating and deflating an air bag having a valve with a valve head and movable valve stem is disclosed. Each hand tool includes a first elongated member having a gripping portion at one end thereof and a valve head engaging member at an opposite end thereof. A second elongated member is pivotally coupled to the first elongated member with the second elongated member including a gripping portion at a first end thereof and a valve stem engaging member at an opposite end thereof. A spring is connected to the first and second elongated members to bias the valve head engaging member toward the valve stem engaging member. With the hand tool in an operative position, the valve head engaging member engages the valve head with the valve stem engaging member engaging the valve stem to position the valve in an open position.

Abstract: A cargo handling truck bed that includes a material handling device having a base and two longitudinally extending conveyors. Each of the conveyors includes a longitudinally extending belt having a first end and a second end. A first drum is rotatably secured to the base and secured to the first end of the belt. A second drum is rotatably secured to the base and secured to the second end of the belt. The first drum is longitudinally spaced apart from the second drum. A first drive arrangement for rotating the first drum and a second drive arrangement for rotating the second drum for winding the belts around the respective drums are provided. A control is provided for driving the respective first drums and second drums. A guide and guide track are provided to keep the belts in alignment. Polyethylene bearings are provided to engage with the drums and limit switches are provided for stopping winding of the belts around the drums.

Abstract: A transmission housing (100)used as a body frame extending longitudinally of a tractor. The transmission housing (100) includes a first housing (1) having a front end connected to an engine housing (91), and a rear end; a first partition (1a) defining a first accommodation chamber (3) in the first housing (1) with the front end of the first housing; a second partition (1b) defining, in the first housing (1), a second accommodation chamber (4) with the first partition (1a), and a third accommodation chamber (5) with the rear end of the first housing; and a second housing (2) having a front end connected to the rear end of the first housing, and a rear end, and defining a rear accommodation chamber (6) between with the front end and the rear end. A main clutch (7) is disposed in the first accommodation chamber (3). A shuttle change speed device (8) and a main change speed device (9) are arranged longitudinally in the second accommodation chamber (4).

Abstract: A shape detection device incorporated as part of a pinch roll assembly in a hot strip reversing mill. The shape detection device replaces one of the rolls in the pinch roll assembly. The shape detection device is used to provide data to an automated shape control and steering system.

Abstract: An electric powered vehicle includes a traction motor powered from a source of switched DC power. The motor includes a tachometer for measuring the rotational velocity of the motor and for providing a tachometer signal indicative thereof. A low pass filter low pass filters the tachometer signal and produces a reference tachometer signal. A summing circuit combines the tachometer signal and the reference tachometer signal to produce a deviation signal. The deviation signal is provided to a signal processing circuit which includes a comparator and a reference value generator. The comparator compares the output of the summing circuit to a reference value provided by the reference value generator and produces a binary changing signal as a function of the comparison.

Abstract: There is disclosed a method of extracting information about the mass of a substance from a complex mass spectrum containing peaks arising from polyvalent ions. These polyvalent ions possess electric charges which are integral multiples of the elementary electric charge. Ions including these polyvalent ions are detected, and a mass spectrum is obtained. On the mass spectrum, ion intensity I is represented as a function of a variable x corresponding to mass-to-charge ratio. The mass spectrum, given by I(x), is transformed into a mass spectrum I(t) of a variable t, using the relation t=1/(x-H), where H is a unit mass of ions added to the polyvalent ions. Peaks appear on the mass spectrum I(t). Among these peaks, at least a given number of peaks appear at regular intervals. The spacing between these regularly spaced peaks is found.

Abstract: A high power amplifier system includes an on-line adaptive predistorter for generating predistorted complex data signals to a high power amplifier in response to receiving incoming complex data signals from a remote source. The predistorted complex data signals enable the high powered amplifier to output signals corresponding to the incoming complex data signals. The amplifier system includes an off-line adaptive predistorter which has an adaptive parametric forward filter for combining predistorted complex data signals and demodulated complex data signals, produced from the output of the high power amplifier, to produce an optimized forward amplitude filter that emulates the forward amplitude response of the amplifier, and an optimized inverse phase filter that emulates the inverse phase response of the amplifier.

Abstract: In order to make processes for finishing animal hides or pelts less labor-intensive and more environmentally compatible, a process is proposed in which, following a conventionally conducted soak, the animal hides or pelts are treated with a conventional tanning solution in which carbon dioxide has been dissolved under pressure. This makes it possible to reduce considerably the period of time usually required for the production of leather or pelts, since the treatment period is reduced markedly. Furthermore, it is possible in this way to combine conventional treatment steps and to conduct them in only one single treatment step. Instead of the 20 to 40 t of waste water per tonne of leather or pelt which are customary with conventional processes, only about 2 t of waste water per tonne of leather or pelt are now produced.

Abstract: A wind instrument is provided having a basic body in which extends a central duct which is bounded by a peripheral wall of the basic body, a plurality of openings in the peripheral wall which connect the duct with the surrounding air, a plurality of valves mounted on the basic body and each having a closure member co-acting with an opening and having a control assembly connected to the valves. The control assembly guides the closure member for movement between a closed position in which the opening is closed by the closure assembly and an open position in which the opening is left clear. The closure assembly has a plate of stiff material which is provided on the side facing toward the opening with sealing material and which in the closed position engages sealingly around the opening. The closure member is connected to the control assembly by a yieldable member.

Abstract: A flexible pipe connector including a first cylindrical member, a second cylindrical member to be inserted into the first cylindrical member, an annular restricting groove defined in an inner peripheral face of the first cylindrical member, an annular attaching groove defined in an outer peripheral face of the second cylindrical member and having a shorter length than the restricting groove in a direction of cylinder axis, a retaining member radially expandably and detachably fitted to the attaching groove for coming into contact with an end face of the restricting groove in the cylinder axis direction so as to restrict range of relative movement between the first and second cylindrical members in the cylinder axis direction. The outer peripheral face of the second cylindrical member and the inner peripheral face of the first cylindrical member are provided with a radial opposing distance therebetween determined so as to allow insertion and withdrawal of the retaining member.

Abstract: A method for manufacturing coal agglomerates for use in a direct smelting reducing furnace is disclosed, in which a fine coal is agglomerated at a high temperature in a simple manner, or anthracite or low free swelling coal having a low free swelling index is mixed with the fine coal, and the mixture is agglomerated at a high temperature, thereby turning the low quality coal to useful purpose. The present invention is characterized in that a fine coal having a free swelling index of 3.0 or more and a particle size of 8 mm or less, or the fine coal mixed with 70 weight % of anthracite or a low free swelling coal, is maintained at 600.degree. C. or over for 5 minutes or more, thereby manufacturing coal agglomerates for use in a direct smelting reducing furnace.

Abstract: A device for three-stage fluidized bed for reducing a fine iron ore in accordance with the present invention comprises: a first single-type fluidized bed furnace for drying/pre-heating a fine iron ore in a bubbling fluidized state; a first cyclone for collecting fine iron ore particles entrained in an exhaust gas from the first fluidized bed furnace; a second single-type fluidized bed furnace for pre-reducing the fine iron ore dried/pre-heated in the first fluidized bed furnace; a second cyclone for collecting fine iron ore particles entrained in an exhaust gas from the second fluidized bed furnace; a third twin-type fluidized bed furnace comprising a first cylindrical reaction furnace and a second reaction furnace for finally reducing coarse iron ore particles and medium/fine iron ore particles, respectively, which are pre-reduced in the second fluidized bed furnace; a third cyclone for collecting medium/fine iron ore particles entrained in an exhaust gas from the first reaction furnace of the third fluidize

Abstract: A rolling fire door includes a door hold-open/release system that includes an electromagnet which is energized by a controller when the door is in the open position. The energized electromagnet magnetically attracts a bottom bar of the rolling door to secure the door in the open position. A key control station connected to the controller enables the electromagnet to be energized when the door is in the open position and enables the controller to deenergize the electromagnet so that the weight of the door causes the door to close. The key control station also includes a test switch which enables the controller to deenergize the electromagnet after a delay interval. The controller also deenergizes the electromagnet after a delay interval in response to activation of an alarm or in response to a thermal switch sensing a temperature in excess of a set point temperature.

Abstract: Disclosed is a rerailer apparatus that can be installed in a rail car for rerailing the rail car if it derails. The rerailer includes two vertical lifting members which are suspended from the rail car and are connected to a foot. These lifting members are used to lift the rail car vertically when the lifting members are extended and the foot contacts a support surface. A lateral movement member integrated with the vertical lifting members and the foot is used to move the lifted rail car laterally.

Abstract: In the manufacture of a screen suitable for use as a rear projection screen, a first layer (10) of a photopolymerisable monomer or oligomer which is tacky in its monomeric or oligomeric form and non-tacky in its polymerised form, is exposed to polymerising light, such as ultra-violet light, in a pattern comprising an array of spots of such light, and consequent selective polymerisation is allowed to take place in the first layer (10). There is then applied to the exposed surface of the first layer (10) a printing medium comprising an opaque pigment layer (28) on a supporting substrate (30) so that the pigment layer (28) contacts the exposed surface of the first layer (10) and sticks to the unpolymerised and therefore still tacky regions of the first layer (10), but not to the polymerised regions. The substrate (30) carrying the pigment layer (28) is then stripped from the first layer (10), leaving pigment (28) adhering only to the unpolymerised regions.

Abstract: A new and distinct cultivar of hydrangea named `Paris Rapa`, particularly characterized by intense rose color of the flowers, early growth, storable in the cold and lack of need for chemical growth regulators in the early stage of cultivation and during forcing, particularly suitable for growth in pots, compact and extremely high resistance to mildew.

Abstract: A new and distinct cultivar of hydrangea named `Berlin Rabe`, particularly characterized by the bright pink color of the flowers, early growth, cold storable, particular suitability for growth in pots, vigorous growth and extremely high resistance to mildew.