Abstract: Drive equipment for rotating by friction an aircraft wheel equipped with a drive track and mounted to turn about an axis (X) on an axle of an aircraft undercarriage. The equipment comprise a base (22), a slide (24) mounted on the base on a sliding axis extending in a radial direction (R1, R1), a support (26) pivotable on the slide on an axis parallel to the rotation axis of the wheel; two rollers (21) rotatable on rotation axes parallel to the pivot axis; a central shaft (28) mounted for rotation on the support and being in engagement with the two rollers to provide their rotation; and an actuator (23A, 23B, 30) for moving the slide and the support between a disengagement position with the rollers distant from the wheel drive track and an engagement position with the rollers are held in contact with the drive track of the wheel.

Abstract: An oilfield material reservoir comprises a body and a base connected to and positioned beneath the body. The body has an upper end, a lower end, a sidewall having a first side and a second side extending between the upper end and the lower end forming a recess, and a partition positioned within the recess adjacent to the lower end and extending between the first and second sides of the sidewall. The base has a discharge opening formed within the lower side, and a plurality of augers extending between the first and second ends. The plurality of augers have opposing-hand flights configured to drive an oilfield material toward the discharge opening of the base.

Abstract: A grinder for grinding a material. The grinder may include a number of first rollers for grinding the material to a grind of substantially a first predetermined particle size and a number of adjustable second rollers for grinding a portion of the grind of the first predetermined particle size to a grind of substantially a second predetermined particle size.

Abstract: A closed-circuit grinding plant for grinding coarse material into a fine material, in particular for generating cement raw meal and/or cement from cement clinker, the plant having at least two roller presses disposed about a central riser shaft which pneumatically transports the fine material or pulverizing the coarse material, at least two sifters for separating the fine material generated during the pulverization from still existing coarse material, and at least two fine material settling devices for settling the fine material from the sifting air of the sifters.

Abstract: Machines for distributing loosefill insulation from a package of compressed loosefill insulation are provided. The package of compressed loosefill insulation includes a bag encapsulating a body of compressed loosefill insulation. The machine includes a chute having an inlet end and an outlet end. The inlet end of the chute is configured to receive the package of compressed loosefill insulation. A plurality of shredders is mounted at the outlet end of the chute and configured to shred and pick apart the loosefill insulation. A bag digester is configured to shred the bag into short strips of shredded bag. The short strips of shredded bag are configured to mix with the shredded loosefill insulation. A discharge mechanism is positioned downstream from the bag digester and the shredders and is configured for distributing the shredded loosefill insulation and the short strips of shredded bag into an airstream.

Abstract: A multiple roll crusher is provided for crushing of mineral material, more particularly of coal or oil sand. The multiple roll crusher includes at least three crusher rolls (1, 2, 5 1?, 2?), the rotation axes (R) of which lie in parallel to each other and horizontal or roughly horizontal. All directly neighboring crusher rolls (1, 2, 1?, 2?) have opposite directions of rotation. A connecting line (V) of the rotation axes (R) has at least one kink.

Abstract: A tandem roller press has two roll pairs which are arranged next to one another in an axially parallel manner in order to provide a roller press system, in particular for the material bed comminution of granular material, which can considerably exceed previous limits with regard to throughput performance but also with regard to the specific energy requirement. Preferably, common feeding of the granular material and common discharge of the material which has been subjected to the material bed comminution are arranged. A tandem separator device may be arranged below the two roll pairs in order to form two parallel compact milling circuits with a high throughput performance overall.

Abstract: A multiple roll crusher is provided for crushing of mineral material, more particularly of coal or oil sand. The multiple roll crusher includes at least three crusher rolls (1, 2, 5 1?, 2?), the rotation axes (R) of which lie in parallel to each other and horizontal or roughly horizontal. All directly neighboring crusher rolls (1, 2, 1?, 2?) have opposite directions of rotation. A connecting line (V) of the rotation axes (R) has at least one kink.

Abstract: An apparatus for preparing a finely divided meal or flour product includes at least one pair of corrugated rolls, a first drive mechanism for rotating a first roll in a first direction at a first speed, and a second drive mechanism for counter-rotating a second roll in a second direction at a second slower speed. Each roll is provided with Twin City Chunk corrugations set in an outer surface of the rolls in a spiral pattern of about 1.5 inches per lineal foot. The difference in rotational speeds of the first and second rolls provides a reduction ratio of about 2:5.1. Finely divided meal or flour products and methods for producing the products using the disclosed apparatus are also provided.

Abstract: An object of the present invention is to diminish the sizes of most disintegrated material effectively, said sizes being determined by the box seats made on the surface of the under roll (7). In a disintegrator (1) having a case (4) with an upper hopper 2 and under exit (3), a pair of upper rolls (5, 6), an under roll (7) located below the upper rolls, and knives (8,9) projecting from inner surface of the case (4) toward the under roll (7) comprising a number of annular grooves (25) formed on the under roll (7), each groove (25) being coupled by a rotative disk cutter (27) at under side of the knives (8, 9). The under roll (7) is provided with polygonal installation seats (13), between adjoining installation seats (13) each attached by a number of cutting edge blocks (14) on a same circumference, said annular grooves (25) are formed between the adjoining installation seats (13).

Abstract: The machine comprises a front door, a roll cover having a main roll cover and a feed roll cover, a first fulcrum axis between the main and feed roll covers, and a second fulcrum axis between the feed roll cover and a frame. The front door has a hinge at the upper portion so that it is kept at a self-supporting state when opened. The main roll cover is foldable on the feed roll cover about the first fulcrum axis. The feed roll cover is swung upwardly about the second fulcrum axis and is finally kept at the self-supporting state with the main roll cover folded on the feed roll cover. Where the front door and the roll cover are kept in their self-supporting states, since a pair of rolls and a stock feeder are fully exposed, the remaining stock accumulated in the machine can be removed easily.

Abstract: A document shredder can be equipped with a shredding system for very high security. The shredding system can be made up of a first cutting stage with two corresponding cutting cylinders. After the first cutting stage a second cutting stage is provided for material cut in the first cutting stage. The second cutting stage can be made up of another pair of cutting cylinders. Alternatively, the second cutting stage can be made up of a third cutting cylinder reaching into one of the cutting cylinders of the first cutting stage, thereby establishing the second cutting stage.

Abstract: The machine comprises a front door, a roll cover having a main roll cover and a feed roll cover, a first fulcrum axis between the main and feed roll covers, and a second fulcrum axis between the feed roll cover and a frame. The front door has a hinge at the upper portion so that it is kept at a self-supporting state when opened. The main roll cover is foldable on the feed roll cover about the first fulcrum axis. The feed roll cover is swung upwardly about the second fulcrum axis and is finally kept at the self-supporting state with the main roll cover folded on the feed roll cover. Where the front door and the roll cover are kept in their self-supporting states, since a pair of rolls and a stock feeder are fully exposed, the remaining stock accumulated in the machine can be removed easily.

Abstract: A cylinder mill for grinding grains and other granular products includes an overdrive mechanism for effecting varying rotation speeds. The overdrive mechanism includes a belt tightener and tightening pulley. The tightening pulley has two sections that are separately adjustable to achieve different tightnesses. This permits an essentially constant tension in the belts comprising the overdrive mechanism such that the belts can operate smoothly.

Abstract: An apparatus for improving the pulping characteristics of wood chips. Several chip compressors are used to treat the wood chips in the desired manner.

Abstract: Feeder module for use in a roller mill. The roller mill has a housing having an inlet adapted to receive a product to be milled and an outlet adapted to output the milled product. The roller mill further has at least one pair of milling rollers disposed in the housing between the inlet and the outlet, the rollers being adapted to mill the product. The feeder module has a frame and a distribution and feed device. The distribution and feed device is adapted to accommodate the product from the inlet, and is further adapted to distribute the product over the length of the milling rollers, and is still further adapted to feed the distributed product onto the milling roller. The feeder module is adapted to be pivoted in the housing between a working position and an open position, and when in the working position, the distribution and feed device is positioned between the inlet and the milling rollers, and when in the open position, access to at least the distribution and feed device is provided.

Abstract: Coarse waste such as stumps, lumber from demolition and the like is disintegrated in accordance with a method and device comprising at least two cooperating, essentially parallel screws having threads with disintegrating edges which move in mutually opposite feeding directions so that they tear the waste into pieces.

Abstract: A mill for grinding farinaceous seeds into flour comprises a pair of counterrotating cylinders to which seeds to be ground are fed from a hopper with the aid of a transport roller driven by a variable-speed motor. A sensor inside the hopper measures, e.g. capacitively, the level of a supply of seeds present therein and controls the speed of that motor to vary the feed rate substantially in proportion to the measured level. When the sensor detects a drop of that level below a minimum threshold, it stops the transport roller and causes the cylinders to be separated from each other.

Abstract: A mill for grinding farinaceous seeds into flour comprises a pair of counterrotating cylinders to which seeds to be ground are fed from a hopper with the aid of a transport roller. A float inside the hopper detects the level of a supply of seeds present therein and, via a pneumatic controller, varies the position of a curved cover plate confronting the transport roller in order to change the width of the intervening gap in conformity with the seed level. When the float descends to a minimum level, the gap is closed completely and the cylinders, arrested together with the transport roller, are separated from each other.

Abstract: The invention describes a new type of automation for a roller carriage. The amount of product conveyed to the roller carriage is constantly subject to fluctuations, and is determined by a mechanical probe. A corresponding signal directly activates a pneumatic valve, and control pressure adjusts the instantaneous performance of the grinding rolls. The pneumatic valve has a so-called zero position, and becomes a follower control device by means of servo-media and the adjusting mechanism of the performance-dependent elements in the roller carriage. At the same time, the control pressure in the pneumatic valve can start and stop the grinding rolls.

Abstract: A roller mill has two pairs of parallel rolls, each pair comprising fast and slow rolls driven in opposite directions. In a flour mill, wheat is ground between each pair of rolls to produce flour. A drive motor drives a first one of the fast rolls through a V-belt drive. The driven fast roll drives the second fast roll through a 1:1 endless chain drive. The slow rolls are driven in an opposite direction and at a slower speed than the fast rolls by a serpentine chain drive engaged with a slow roll, a fast roll, and the other slow roll, in that order. Both chain drives are arranged next to each other at one end of the roller mill and are housed in a common oil bath housing containing oil for lubricating the drive chains. The chain drive eliminates the need for a lineshaft and drive pulleys, as well as a jackshaft and idler pulleys, and associated bearings and guarding that are normally used with a prior art belt-driven roller mill.

Abstract: A pair of gear-driven hollow cutting cylinders, each perforated with square holes to provide a grid of exterior cutting edges extending circumferentially and longitudinally of the cylinder, breaks a glass wool mat fed therebetween into small columns which are pneumatically conveyed from the inside of the cylinders to a conventional bagging machine.

Abstract: A machine and method for collecting gall from animal bladders is provided. The machine includes contra-rotating rollers which cut and squeeze gall bladders fed onto the rollers. A perforated drum receives the gall and cut bladders issuing from the rollers and separates the gall from the cut bladders. A high yield of gall is attained.