Abstract: The cutting mechanism includes a cutter block mounting a knife blade arranged for movement along a slot in a cutting table. The cutter block is driven by a cable and a first drive pulley. The cable extends under and around the first drive pulley and a second pulley, with the first end of the cable fixed to a second end of the cutter block, and the second end of the cable fixed to a first end of the cutter block. The cable and the first and second pulleys are arranged such that when the cutter block lies between the first end of the slot in the table and a center of first drive pulley the first and second ends of the cable are drawn taut thereby stopping movement of the cutter block along the slot towards the first end, and such that when the cutter block lies between the second end of the slot in the table and a center of the second pulley the first and second ends of the cable are likewise drawn taut stopping movement of the cutter block along the slot towards the second end.

Abstract: A hand operated cutting apparatus and method of cutting mat board, glass, and other related sheet-like framing material. The apparatus has a cutting head assembly which includes a plurality of interchangeable and adjustable blade holding units. Each blade holding unit provides a different type of cut, such as a beveled, straight edge, or V-groove cut. Most of the blade holding units are intended for use with mat board, but some can be used to cut and trim sheet-like glass or plastic framing material. Each blade holding unit is also capable of vertical adjustment relative to the workpiece so that various depths of cut can be provided. The method of cutting a mat board permits the mat board to be positioned face up on the base board of the cutting apparatus and does not require flipping or taping of the mat board during V-groove cutting operations.

Abstract: A shell-firing barrel weapon system for a single shot, semi-automatic or fully automatic firing, including a rifled barrel comprising a programming member for programming with programming pulses fuses in shells fired from the weapon before or in conjunction with firing of the shells. At least one contact is located in the barrel of the weapon and connected to the programming member for transmitting a programming pulse from the programming member to the fuses of the shells. The at least one contact is electrically insulated from the barrel and protrudes into the barrel beyond bars of rifling of the barrel. An electrically conductive contact ring is concentrically arranged on the shells. The contact ring is electrically insulated from main parts of the shells and has an external diameter that is smaller than a diameter of the bars of the rifling of the barrel.

Abstract: The invention relates to a pneumatic booster operated by a plunger (9) housed in a bore (61) and carrying a moving seat (102) intended to interact selectively with a shut-off member (111), this member being itself capable of interacting selectively with a fixed seat (101).According to the invention, the plunger (9) comprises a cylindrical body (91) and a collar (92) sliding between a front stop (911) and a rear stop (912) of the body, an anterior section (921) of the collar (92) being engaged between the cylindrical body (91) and the bore (61), a posterior section (922) of the collar (92) carrying the moving seat (102), and it being possible furthermore for the collar (92) to be held temporarily stationary in the bore independently of the movement of the body (91), by means of a channel (14) and of a snap ring (13), in order to allow extended operation of the booster after a sharp braking action.

Abstract: An axial piston machine, in particular an axial piston pump of a high-pressure cleaning device, includes a wobble drive having a wobble member rotatable about an axis of rotation, and a swash plate rotatably supported by the wobble member and extending at an inclination with respect to the axis of rotation. The swash plate interacts on one end face thereof with at least one piston. For simplification of the assembly of an axial piston machine, the wobble member is so configured as to have a conical portion flared in the direction of the swash plate and formed with a ball race for a ball bearing.

Abstract: A composite pump diaphragm 10 includes a layer 12 fabricated from annealed polytetrafluoroethylene (PTFE) bonded to a layer 14 fabricated from an unreinforced thermoplastic elastomer including ethylene-propylene terpolymer (EPDM) and polypropylene. The diaphragm 10 is fabricated by chemically etching the PTFE layer 12, coating a surface thereof with a polyurethane adhesive, superimposing the layer 14 with layer 12 under heat and pressure, and allowing the superimposed layers to cure.

Abstract: A filter device for brewing beverages from coffee or tea grounds has a support frame comprising a first annular member and at least two radially outwardly projecting supports for placing the filter device onto a rim of a beverage container. The first annular member has a diameter smaller than the diameter of the beverage container. A disposable filter insert enclosing an amount of coffee grounds or tea leaves for brewing a beverage in the beverage container is provided. The filter insert has a seamless conical porous pocket for receiving the coffee grounds or tea leaves. The conical pocket has a cone base facing upwardly and a cone top facing downwardly. The filter insert also has a porous cover covering an opening at cone base. The pocket has finer pores than the cover. The cover sags downwardly and forms a depression.

Abstract: Electric deep fat fryer comprising a vat (13) disposed in a housing (11) and containing a cooking bath (15), an electric heater (18) adapted to heat the cooking bath, a basket (20) for reception of foodstuffs to be fried, mounted in the vat (13), and a control panel (33) which provides automatic control of a cooking cycle of the foodstuffs to be fried. A cooking temperature is selected as a function of the type of particular foodstuff to be fried and is supplied to the automatic control. An image code of the quantity of the load in the basket (20) containing the foodstuffs to be fried is supplied to the automatic control (37). A cooking time for the foodstuffs to be fried is calculated as a function both of the temperature and of the quantity of foodstuff to be fried.

Abstract: The rotary cooking apparatus of this invention includes a housing with a bottom opening to allow heat and smoke from a heat source into the housing. The bottom opening defines a plane on which the housing can rest upon. The opening is generally sized to fit over a grill or some other heat source. A base such as a boot or plate can also be used between the grill or heat source and the housing. The housing has opposing sidewalls. Bearings or bushings are centrally located and attached to the sidewalls. A pivotal door on the housing allows access into the housing. A rotating center attaching device is rotatably positioned within the housing and within the bearings. A rotatory device, such as a rotisserie motor, rotates the rotating center attaching device. Various types of attachments attach to the rotating center attaching device to cook food in a variety of various rotating cooking methods.

Abstract: An apparatus for cooking food having a multi-layer cooking plate including a stainless steel sheet layer having a top surface and a bottom surface and a high thermal conductivity material layer metallurgically bonded to the bottom surface of the stainless steel sheet layer so as to provide intimate contact between the entire bottom surface of the stainless steel sheet layer and the high thermal conductivity material layer. Heat to the multi-layer cooking plate is provided by a fuel-fired burner disposed beneath the multi-layer cooking plate.

Abstract: A safer power supply is used in conjunction with a system for preserving food, oil, organs, or other organic material. The power supply constantly applies a high voltage-weak pulse electric voltage, generated by a transformer using an alternating-current power supply of commercial frequency, with the voltage applied through an electrically conducting electrode to the food or other organic materials. In the power supply, one pole of the secondary winding is sealed for increased safety. By applying or impressing high voltage-weak pulse electric current to frying oil or other organic materials using the power supply and/or the preservation system, the high voltages restrain deterioration of frying oil and enables long-term use. Installed on a food container which is placed in a refrigerator, the power supply safely applies high voltage-weak pulse electric current to meat and fish in the container, and so suppresses propagation of germs and deterioration.

Abstract: A fruit squeezer includes a hollow base having a peripheral side wall with opposite highest and lowest sides, a container having a first spout and turnable relative to the hollow base between a draining position in which the first spout is aligned vertically with the lowest side, and a non-draining position in which the first spout is aligned vertically with the highest side, a reamer mounted rotatably in the container, a driving unit mounted rotatably on the hollow base and having a driving shaft that projects into the container and that is connected to the reamer, and a squeezing member disposed above the reamer for moving toward the reamer.

Abstract: A compaction and transfer apparatus adapted to measure the length and/or weight of a waste log during compaction and transfer thereof, is provided. The apparatus comprises a compaction chamber, a closure device, a compaction ram, and a movement and/or weight detector. The compaction chamber is adapted to receive waste material. The compaction chamber has a discharge opening. The closure device is selectively movable into and out of the discharge opening to control the size of the discharge opening. The compaction ram is movable through the chamber to press the waste material against the closure device and thereby provide compaction of the waste material. The movement detector preferably is mounted on the closure device. The movement detector is adapted to detect movement of the waste material through the discharge opening, which movement corresponds to the length of the waste log extending out of the discharge opening.

Abstract: A trash and recycling center having a modular trash receptacle unit and a modular recycling receptacle. The trash receptacle unit has at least two interior compartments and a movable lid. A trash bag can be placed in one compartment and used newspapers can be stored in the other compartment. The recycling receptacle unit has a top with a can crusher, an empty can storage area, and a slot for depositing crushed cans into the interior of the recycling receptacle. The interior of the recycling receptacle can have multiple shelves or storage draws or, can have a single storage bin. The recycling receptacle can also have a removable counter top recycling unit.

Abstract: An apparatus for processing web-shaped material (90) comprises a working roller (5), a counter support (6), a pressure bearing structure (3) for exerting driving force to said working roller (5), a supporting carrier (1) and a pressing device which comprises a pressure hose arranged between the pressure bearing structure (3) and a supporting wall (12). The pressure hose is formed by a pressure hose element (2.1) which, when the apparatus is viewed in longitudinal section, has a L-, U- or oval-shaped cross section and at least one bent portion (22) extending away from a counter support surface (31) for the hose rearwardly towards the rear side of the apparatus and a support portion (21) for making planar contact with the counter support surface (31) for the hose, a hose-free space (150) being formed at each filling state of the hose by each bent portion (22) in a flat cavity (15) between the counter support surface (31) for the hose and the support wall (12).

Abstract: A slide mechanism for a cantilever type screen-printing machine and a driving mechanism for elevating the slide mechanism are provided. The slide mechanism includes an elevating mechanism and a transverse sliding assembly both including members formed from aluminum extrusions and therefore having high rigidity and strength. The transverse sliding assembly is vertically adjustably connected to a guide block through two small slide pairs connected between the transverse sliding assembly and the guide block, and the guide block is in turn connected to two big slides of the elevating mechanism. The driving mechanism includes a gear reduction motor, a driving bar of which is connected to the guide block in order to drive the transverse sliding assembly to stably move up and down along the elevating mechanism at high speed to achieve high precision printing in high efficiency.

Abstract: In a composition containing a photothermal conversion material, which is suitable for use in a method of perforating a heat-sensitive stencil sheet by ejecting a photothermal conversion material contained in a liquid from a liquid-ejecting means to transfer it together with said liquid onto a heat-sensitive stencil sheet, and then exposing said heat-sensitive stencil sheet to a visible or infrared ray to allow the photothermal conversion material to emit heat so that said heat-sensitive stencil sheet is perforated specifically at portions to which said photothermal conversion material has been transferred, the perforation can be efficiently performed by use of a liquid containing a photothermal conversion material by appropriately selecting boiling point and heat of vaporization of a major component of the liquid.A composition for perforating a heat-sensitive stencil sheet containing a photothermal conversion material in a liquid, said liquid comprising a solvent having a boiling point of 50 to 250.degree. C.

Abstract: Solder Paste, adhesives and other materials are screen printed onto Printed Circuit Boards (PCB's) during the assembly process for electronic circuit assemblies. Pressure forces may be applied to the material to aid in separating the material from the apertures within the stencil. The pressure forces are created from sound pressure waves generated from a vibrational energy source located some distance from the stencil. Examples of non-contacting vibrational energy sources include Ultrasonic transducers, horns, speakers, and tuning forks. Additional assistance to separate the material from the apertures may be applied by a vibrational source by contacting to the stencil. Examples of the contacting vibrational energy sources may be off-balanced motors, piezo-electric transducers, and mass-resonant vibrators.

Abstract: There is disclosed a method of feeding a dampening water to a plate cylinder in an offset printing press which is accelerated to, operated at and then decelerated from a predetermined speed for printing. The method comprises the step of programmatically controlling the feeding amount of the dampening water to increase in accordance with the increase in speed of the printing press along a first curve which is predetermined to indicate the relation of the feeding amount of dampening water to the speed of printing press, when the printing press is accelerated. The method further comprises the step of programmatically controlling the feeding amount of the dampening water to decrease in accordance with the decrease in speed of the printing press along a second curve which is predetermined to indicate the relation of the feeding amount of dampening water to the speed of printing press, when the printing press is decelerated.

Abstract: For regulating the pressure in a pressure chamber, in particular in a pneumatic brake apparatus for a web-type recording medium, an actual pressure is set in the pressure chamber dependent on an actual angle of rotation of a rotary valve. The actual angle of rotation of the rotary valve and the actual pressure in the pressure chamber are acquired. A target pressure and a target angle of rotation allocated to this target pressure are predetermined, and a pressure deviation between the actual pressure and the target pressure are determined, as is a deviation of the angle of rotation between the actual angle of rotation and the target angle of rotation. An adjusting unit sets the angle of rotation at the rotary valve, first dependent on the deviation of the angle of rotation and then dependent on the pressure deviation. Furthermore, a sensor for acquiring the angle of rotation is specified.

Abstract: A guide blade for guiding sheets in a printing machine in in-line or perfecting mode processes employing trailing edge turning, the guide blade has a front edge and an end piece, and air nozzels located in a flow surface extending from the front edge along the end piece. The air nozzels are connected to a source of pressurized gas, and direct pressurized gas in the direction of travel of the sheets. A plurality of parallel, spaced-apart, guiding fins project downwardly from the flow surface. The guiding fins have downstream ends which are spaced further away from the flow surface than the upstream ends thereof. The sheet, along with the guiding fins and the flow surface, create a diverging flow channel below the end piece of the guide blade, inducing a partial vacuum in the flow channel, which maintains the sheet in contact with said guide blade. The guide fins include air nozzels and the angle between the guiding fins and the flow surface can be adjusted.

Abstract: A printing apparatus for making a plate by recording and developing images thereon, and thereafter printing the images by feeding inks to the plate. The printing apparatus includes a cylinder for supporting the plate mounted peripherally thereof, a cylinder rotating mechanism for rotating the cylinder, an image recorder for recording the images on the plate mounted on the cylinder, and a developing device for developing the plate mounted on the cylinder. The developing device includes a developing roller reciprocable between an applying position for contacting the plate to apply a developer to the plate mounted peripherally of the cylinder, and a retracted position spaced from the applying position, and a squeeze roller reciprocable between a squeezing position for contacting the plate to squeeze the developer applied by the developing roller off the plate mounted peripherally of the cylinder, and a retracted position spaced from the squeezing position.

Abstract: A planographic printing plate includes a radiation sensitive layer which may comprise a rubber material. Application of heat causes exposed areas to be vulcanized. The plate may be developed by applying a force to the radiation sensitive layer, for example by rubbing, thereby to remove non-exposed areas.

Abstract: A planographic printing member comprising a substrate, an oleophilic layer, an infra-red sensitive/ablatable layer, and a hydrophilic layer. The hydrophilic layer is derived from a silicate solution, optionally containing particulate materials such as alumina and/or titania. The printing member may be exposed to radiation from a laser which ablates the infra-red sensitive/ablatable layer to reveal areas of the oleophilic layer. An exposed printing member may be used in wet lithographic printing.

Abstract: An apparatus and method is provided for printing and imprinting duplicates of a credit card receipt using a roll of single-ply paper. The paper may be coated on a first side with a heat-sensitive image producing agent and is coated on a second side with a carbon-type image producing agent. To include transaction information printed on the credit card receipt as well as information written on the receipt by the customer (such as a signature and an indication of the amount of any gratuity), the transaction information is substantially duplicated in two separate fields each on a separate portion of the credit card receipt. At least part of the two separate portions are then aligned and presented to the customer for completion. The two separate portions can be aligned by separating the two separate portions from one another and stacking the two separate portions one upon the other.

Abstract: Transparent documents with precoated background so that only the text and foreground need to be printed by a printer is taught. Alternatively, the transparent documents may be precoated with watermarks, company logos, company confidential or other common background patterns. The printer may be able to selectively remove the background precoating from predetermined areas of the transparency where text or other foreground material will be printed. Alternatively, the ink in the printer may chemically dissolve the precoating in predetermined areas.

Abstract: A fireset for a low energy exploding foil initiator (LEEFI) comprises a ft capacitor for storing a level of electrical energy sufficient to fire the LEEFI, the first capacitor being in electrical communication with the LEEFI, second, third, and fourth capacitors in electrical communication with the first capacitor for storing lesser levels of energy than the first capacitor. A trigger directs a pulse of electrical energy into the fireset. An integrated circuit to which the pulse of electrical energy is directed, is adapted to invert the pulse and to dump the third and fourth capacitors. A first metal oxide semi-conductor fill effect transistor (MOSFET) switch is turned on by the integrated circuit and the dumping of the third and fourth capacitors, the first MOSFET switch being operable to dump the second capacitor. A second MOSFET through, which the second capacitor is dumped, operates to discharge the first capacitor through the second MOSFET, to fire the LEEFI.

Abstract: A passive, infrared, guided missile fuze, capable of detecting the presence of a target, having an axis which coincides substantially with the direon of forward motion of the missile, comprising three infrared detectors for detecting three separate beams of infrared electromagnetic radiation from the target, the beams forming angles with the axis. More specifically, the missile fuze detects the presence of a target when two of the infrared detectors simultaneously detect two beams of infrared radiation from the target. In a sophisticated embodiment, the fuze is able to determine in which quadrant of space the target is located.

Abstract: An applicator/remover mechanism automatically applies and/or removes a clip, such as the so-called Safelok clip. Each clip applicator/remover mechanism preferably includes a workarm which is pivotable transversely towards and away from the longitudinal centerline of the rail, a clip applicator tool mounted on the workarm, and a clip retractor tool mounted on the workarm. The clip retractor tool includes first and second retractor arms pivotably mounted on a housing, each arm having downwardly-extending fingers to engage the side of a rail clip. The arms have intermeshing teeth which cause the second retractor arm to pivot upon pivoting of the first retractor arm to selectively pinch and release the rail clip. The resulting mechanism is capable of both applying and removing clips rapidly and efficiently while accommodating variations in position and orientation of the rail and/or the clips.

Abstract: An overhead trolley track system has extruded aluminum track sections having tubular portions, adjacent track sections connected end to end with plates attached to a central upright flange portions formed on each track section. Sealing tubular fittings are slidably received in each end of the rubular portions adjacent sections held by the plates to allow air pressure to be distributed. Air pressure fittings are inserted in drilled holes along the track sections, held in by brackets. The trolleys have rollers engaged with opposite upper sides of the tubular portions, the trolley rollers separable to allow removal from the track sections.

Abstract: A floor transport system with a rail guided floor transport vehicle and a guide rail system is recessed in the floor or ground plane and has a slotted track channel for guiding the vehicle along a travel path and at least two current conductors. At least two running wheels and at least one drive wheel as well as guide elements sliding in the track channel and current collector shoes are secured to the frame of the vehicle and operatively connected to at least one drive unit which is secured to the vehicle frame and includes the drive wheel. The front guide elements and preferably also the current collector shoes are combined in particular subassemblies which can rotate about respective vertical axes, wherein at least one of the subassemblies is mechanically and electrically linked to a respective drive unit for steering the vehicle.

Abstract: In the device for pivotally connecting neighboring car bodies of a rail vehicle, especially for commuter traffic, each car body (1,2) is supported by a ball-and-socket joint (6) on a common swiveling railway truck (4). The swiveling railway truck (4) carries a central portal (3) between the car bodies and the central portal (3) is coupled kinematically by means of a swiveling linkage mechanism with them in the vicinity of a roof of the car bodies. The swiveling linkage mechanism includes car body arms (7) pivotally connected to the car bodies (1,2) and central portal arms (8) pivotally connected with the central portal (3) and with the car body arms (7). Both car bodies (1,2) and the central portal (3) form lower legs of two kite-shaped quadrilateral linkages and the car body arms (7) and the central portal arms (8) form the upper legs of the quadrilateral linkages.

Abstract: A center plate (20) is provided for installation in a center plate pocket (21) in the underside of a railcar (10) undercarriage. The center plate (20) comprises an upper wall section (36), a lower cap section (38), and a weld area (32) between the upper wall section (36) and the lower cap section (38). When the center plate (20) is in the center plate pocket (21) the weld area (32) forms a continuous grooved perimeter which allows for the center plate (20) to be welded to the undercarriage with a single weld.

Abstract: A ventilated transportable freight container is disclosed. The container is ventilated by natural convection through at least one lower side vent comprising a lower plenum chamber for distributing air into the container and restricting entry of moisture in the form of rain, sleet or snow into the container and at least one upper top vent, including a plenum chamber. The upper top vent or vents may be formed in the sidewall of the enclosure or in the roof of the enclosure depending upon the structure of the container and the particular application. The use of one or more upper top vents enhances circulation of air by natural convection. The invention also incorporates sidewall and endwall spacers extending from the sidewalls and endwalls into the enclosure to provide passageways for the circulation of air to ventilate the enclosure and a path for condensation drainage. In one embodiment of the invention, the transportable freight container of present invention comprises a rail freight car.

Abstract: A railcar has a substructure, a superstructure and side webwork joining the substructure and the superstructure, leaving an interior space suitable for carrying automobiles. The number of automobiles carried within the railcar structure, and the versatility of the railcar, are improved by using an adjustable decking structure which allows vehicles of different sizes to be carried. The decking is moveable to permit a lower, or main deck to be loaded before loading other decks. The decking structure is also movable between a two deck and a three deck configuration. Middle and upper decks may be adjusted and loaded in a suitable manner. Provision is made for the adjustable decks to be driven positively both upward and downward.

Abstract: A composite box structure having a core encapsulated in multiple layers of fiber reinforced plastic is provided. The core may be formed from various materials which provide improved resistance to heat transfer between the interior and the exterior of the composite box structure. The composite box structure includes a pair of end walls, a pair of side walls, a floor and a roof with fiber reinforced plastic interior and exterior surfaces. An opening is formed in each side wall to allow access to the interior of the composite box structure. An opening may also be formed in one end of the composite box structure to allow installing a temperature control system therein. An airflow management system may be incorporated into selected interior portions of the roof, side walls, end walls and floor. The composite box structure may be mounted on a railway car underframe to provide a temperature controlled composite boxcar.

Abstract: A railway gondola car having trucks for movably supporting the car on railway tracks includes a center sill and a gondola body supported by the trucks. The gondola body includes first and second ends, a first side, a second side, and a bottom assembly. The bottom assembly includes a trough disposed between the trucks and attached to the first and second sides. The bottom assembly also includes a generally hat-shaped stiffener attached to the trough, the first side, and the second side.

Abstract: With a synthetic resin pallet provided with large open portions in an under surface portion for handling with a hand lifter, the aim is to improve the strength of the under surface portion. Therefore there is provided a synthetic resin pallet having an upper surface portion and an under surface portion which is provided with large open portions, the upper surface portion and the under surface portion being connected by columns, with fork insertion apertures formed between the columns, the synthetic resin pallet being integrally formed by connecting a pallet upper part integrally formed with the upper surface portion and column main portions, and a strengthened pallet lower part integrally formed with the under surface portion and column lower end portions, by the respective columns.

Abstract: A modular shelving system that includes framework which provides structural integrity and distribution of electrical wiring, communication, data transmission and other services, and brackets and shelves which may be interlocked for stability purposes. The shelves exhibit increased strength to provide greater shelf spans between framework supports. The shelving system is suitable for universal application in laboratories, clean rooms and other rooms, and may also constitute a self-standing structure on which a room may be built.

Abstract: A shelf support includes a support body having a mounting device for mounting the support on an upright component. A support surface supports a shelf. The support has a retaining element which is pivotably connected to the support body for movement into and out of an engagement position in which, in use, the retaining element engages an upper surface of a shelf supported by the support surface, thereby retaining the shelf on the support surface. The retaining element enables a shelf to be held firmly in place without the need for fixing screws, and without hindering the fitting and dismantling of the shelf support to the upright component.

Abstract: A coal-burning utility electrical power generation plant includes a mill pulverizing coal and supplying same to a boiler for combustion. The boiler has a bottom ash hopper for receiving combustion products including clinkers, and a clinker grinder for grinding the clinkers. The clinker grinder includes a rotary drum in a grinding chamber and having grinding teeth and driven by a rotary shaft extending through a stuffing box assembly. The stuffing box assembly has a flushing fitting for supplying flushing fluid thereto and along the shaft and into the grinding chamber. A seal permits flushing fluid flow from the flushing fitting into the grinding chamber, and blocks reverse flow. Long life is provided without a grease fitting, and leakage is substantially reduced.

Abstract: A method for incineration and an incinerator for composition of exhaust gases containing organic substances, the incinerator comprising an elongated, preferably cylindrical combustion chamber, an oil or gas fired burner with a flame-tube axially centrally at one end of the combustion chamber, a flue gas outlet pipe provided at the end of the combustion chamber opposite to the burner for the flue gases produced during incineration, and an inlet conduit connected to the side of the combustion chamber for the exhaust gases to be decomposed, wherein the inlet feed pipe opens or discharges in the combustion chamber in proximity to the burner. The incinerator is characterized by a conduction/deflection plate (36), adjacent the input conduit (24), for pre-heating the exhaust gases flowing by.

Abstract: An arrangement for burning refuse in which the refuse is deposited on a grate and transported to a drop-out shaft. A part of the air supplied for burning the refuse is transmitted as primary air from below the grate. A part of the air is also blown into a combustion chamber as secondary air. The resulting flue gas from the combustion is moved in a direct or parallel stream with the refuse to an end region of the combustion chamber, and deflected in direction and injected through an opening in a flue gas channel having a vertical center plane and two channel halves on both sides of the plane. At least a secondary air stream is blown into blown channel halves in the region of the channel opening, mirror-symmetrically to the center plane. The second air stream is blown in with a rotary pulse relative to a center axis of a cross-section of the channel halves. Two oppositely rotating swirls are generated by the secondary air streams in the channel halves symmetrically to the vertical center plane.

Abstract: A method of operating a pulverized coal-firing furnace is provided which includes injecting air from an upper compartment generally in opposition to a swirling fireball. The method also provides the step of sensing a temperature characteristic of one side of a convection pass of the furnace. The sensed value, in accordance with the method of the present invention, is then evaluated to determine if the sensed value of the temperature characteristic exceeds an allowable value. In response to a determination that the temperature characteristic exceeds the allowable value, the momentum of the air injected through the upper air compartment is changed. After the step of changing the momentum of the air injected through the upper air compartment, the temperature characteristic of the one convection pass location is sensed to obtain a post adjustment value of the temperature characteristic and compared to an allowable value.

Abstract: A gardening tool used for bulb planting having a frustoconically shaped earth removing portion with the approximate size and depth needed to remove enough soil to plant a bulb. The tool has a handle for holding onto the device and placing it on the ground for use without having to bend over. The tool also has a foot bar for ease of forcing the earth removing portion into the ground by standing on the foot bar. When the earth is removed and the bulb is placed in the ground, an actuating rod on the gardening tool is pulled to open the frustroconically shaped earth removing portion to deposit the soil therein on the bulb to complete the planting process.

Abstract: A real time soil constituent sensor and precision agricultural chemical delivery system may measure simple in situ soil constituents without the aid of externally applied solvents, or such solvents may be utilized intermittently to calibrate the measurements for greater accuracy. A real time complex in situ soil resistivity sensor and prescription agricultural chemical delivery system includes a plurality of ground-engaging tools in association with individual soil electrode arrays which measure complex solute and matrix resistivity levels. Conventional ground-engaging tools may serve as electrodes for impressing a voltage source and serve as a current sink for the purposes of determining complex resistivity values and components thereof in in situ soils. Alternatively, local resistivity measurements in a single tool can also be employed for separation of resistivity contributions of the soil solute and the matrix.

Abstract: A sowing device for discharging metered quantities of seed, fertilizer or the like grains is characterized in that the metering device is provided with one or more exchangeable cellular wheels (17), that the housing (16) of the metering device, which accommodates the cellular wheel (17) is designed axially symmetrical at both opposing faces in relation to the driving unit, the bearing and the assembly of the metering device and the fastening thereof, and has a removable shaft (18), that the housing (16) is designed without bearing, and at least one driving unit (22) with bearing and/or at least one bearing unit (24) is coupled thereto, that the shaft (18) in the form of a plug-on or slip-on shaft is supported in the driving and/or bearing unit(s), and that the driving and/or the bearing unit can be plugged, screwed or similarly attached to the housing (16).

Abstract: An improved apparatus for tensioning embroidering fabric between frames has an outer frame half template mounted to a frame assembly so as to maintain alignment with an inner frame half template when the table assembly holding the fabric is repositioned. The inner frame half template holds different sized inner frame halves which can be aligned with corresponding outer frame halves by adjusting the position of locator pins in the inner frame half template. The outer frame half template is adjustable to accommodate circular outer frame halves of different sizes while maintaining a common center point.

Abstract: A sewing machine with a balance wheel (1), which is detachably fastened on the arm shaft (15). The balance wheel (1) is secured against rotation by the cooperation of a carrier pin (17) transversely protruding from the arm shaft (15) with two axially extending recesses (7) in the balance wheel hub (1), which said recesses are open at one end. The wheel is secured axially by the cooperation of an elastic finger (9), which is fastened to the balance wheel (1) and has a mounting hole (12), with the carrier pin (17).

Abstract: An electronically controlled sewing machine indicates which of the basic operations for the machine is possible or impossible in a readily identifiable manner to a user, thereby improving the ease of operation of the machine. A start/stop button is illuminated with steady green light, that is, a first illuminated state, when a presser foot is at a pressing position and a needle bar is within a threading possible range. When the presser foot is at a withdrawn position and the needle bar is within the threading possible range, the start/stop button is illuminated with red flicker, that is, a second illuminated state. When the presser foot is at the pressing position and the needle bar is out of the threading possible range, the start/stop button is illuminated with green flicker, that is, a third illuminated state.