Abstract: The description relates to a rectenna solar-battery hybrid panels that not only receive electric power transmitted by microwaves after the electric energy has been generated from sunlight, but also gain sunlight energy on the open faces of the panels, and to hybrid solar photovoltaic generation systems. In the rectenna solar-battery hybrid panel, a plurality of solar battery cells for receiving sunlight and converting the sunlight into electricity and a plurality of microwave receiving antenna elements for receiving microwaves transmitted through space are provided. dc electric power is obtained from microwave power, having been received by the microwave receiving antenna elements, being rectified by a rectifying circuit. Stable electric power can be obtained from the output of the solar battery cells and the rectifying circuit.

Abstract: A floating solar powered apparatus includes a main housing with an electrically operated component, with an at least translucent portion for transmittal of sunlight into the main housing during daylight hours. It is sometimes transparent or one or more colored translucent areas or, a combination of these. The main housing is water impervious and has at least one rope attachment orifice. The electronically operated component contained within the main housing and it is selected from the group consisting of a detector, an alarm, a radio, a light source for illumination, and combination thereof. There is also a power supply and appropriate connections connected to the electronically operated component(s) contained within the main housing that includes at least one solar cell. The at least one solar cell is located in the at least translucent portion of the main housing. In some preferred embodiments, the at least translucent portion is transparent.

Abstract: A floating solar powered apparatus includes a main housing with an electrically operated component, with an at least translucent portion for transmittal of sunlight into the main housing during daylight hours. The main housing is water impervious and has at least two lateral sections that cooperate to open and close to clamp a line or rope. The electronically operated component contained within the main housing and it is selected from the group consisting of a detector, an alarm, a radio, a light source for illumination, and combination thereof. There is also a power supply and appropriate connections connected to the electronically operated component(s) contained within the main housing that includes at least one solar cell.

Abstract: Edge illumination photovoltaic devices based on multicomponent semiconductors and low cost methods for fabricating such devices are provided. The photovoltaic devices can find application in a variety of photovoltaic and thermophotovoltaic systems including solar concentrator based systems.

Abstract: There is provided a structure comprising semiconductor material, the structure having at least one zone of reduced oxygen concentration, such zone having an interstitial oxygen concentration of not greater than 3×1017 oxygen atoms/cm3, such zone extending at least 75 microns in depth from a first major surface. There is further provided a photovoltaic cell comprising at least one such structure.

Abstract: The convertible pad support can receive at least two different types of pads of different dimensions. The support includes a three-dimensional structure defining a storage volume wherein the pads are disposed. The structure includes two lateral flanks which are firmly connected by two fixed arms and receives at least one additional arm which can be placed opposite the storage volume. The structure maintains the pads inside the storage volume with the aid of the other arms whereby the normal distance between the additional arm and the geometric longitudinal axis of one of the fixed arms can be adjusted in order to adapt support to the dimensions of the pads to be received.

Abstract: The invention provides a manufacturing method for a semiconductor photoelectrochemical cell, comprising the steps of burning a base made of titanium or a titanium alloy in an atmosphere of 700° C. to 1000° C. at a rate of temperature increase of no lower than 5° C./second so that a titanium oxide layer is formed on the surface, and thus, mixing titanium metal into said titanium oxide layer.

Abstract: In a dye sensitizing solar cell 1 wherein an electrolyte 4 is filled in a space between a photoelectrode substrate 2 and a counter electrode of a counter electrode substrate 3, a composite film 7 comprising metal portions 7a of titanium or the like and oxide portions 7b thereof is formed on a transparent electrode film 6 formed on the surface of a substrate member 5, and a porous semiconductor electrode film 8 adsorbing or carrying sensitizing dyes 8a thereon is formed on the composite film 7, the metal portions 7a of the composite film 7 contacting the porous semiconductor electrode film 8, and the oxide portions 7b of the composite film 7 contacting the electrolyte 4 without contacting the porous semiconductor electrode film 8.

Abstract: A liquid flow control device includes an annular housing having an inlet for liquid in one periphery of the housing and an outlet for liquid in the other periphery. An annular block of water swellable material is located in the housing. A layer of sealing material encircles the annular block on the side thereof adjacent the inlet to close the inlet when the block is swollen through contact with the liquid.

Abstract: An automatic degassing valve has a chamber with a float positioned therein to provide for automatically venting gas from a fluid system. The degassing valve includes an actuator lever having on one end a closure for sealing a vent and being attached at the other end to the float. Upward and downward movement of the float causes the actuator lever to close and open the vent. The degassing valve is made of corrosion resistant material and is readily disassembled and assembled for modification and repair.

Abstract: A throttling valve assembly has an outer housing that is sealed. An actuator is connected to a pressure balanced shaft that extends into the housing to operate a plurality of linkages that can rotate blades in tandem. With the surrounding housing sealed, the shaft penetrations of the blade support shafts no longer need seals or a purge system to supply process gas during times of reduced pressure in situations with the blades nearly closed. A pressure equalization system has balance passages internal to the housing to allow flow from higher pressure zones to lower pressure zone of the process gas so as to avoid creation of a condition that can draw air into any zones of reduced pressure in the housing.

Abstract: Disclosed is a method and system for converting or retrofitting manually-operated flush valves. A conversion system for converting an installed manually-operated flush valve includes a power module, a control module, and a driver module mechanically coupled to a manual handle to externally activate the converted flush valve.

Abstract: A valve cover having a valve cover body, preferably of two sections. These sections are placed on either side of a valve. When joined, the sections enclose the valve, but form line apertures around the lines leading to and from the valve. Once the sections are in place, a cap is placed over the sections. The cap is sized to fit the sections tightly and will prevent the sections from separating. The cap and the valve cover body are preferably provided with locking apertures. When these locking apertures are aligned, the cap may be secured to the valve cover body with a lock. With the valve cover locked in place around a valve, access to the valve is denied. The valve cover may glow in the dark to facilitate location of the valve in dark conditions.

Abstract: A tank which is primarily intended for spraying applications and mountable on an all terrain vehicle (“ATV”). The tank (10) includes a main tank section (11) which, in use, extends laterally of the ATV and at least one longitudinally extending arm 12. The pump assembly is located in a cavity (14) in the underside of the main tank section (11). A cover (15) can cover the cavity (14) to mount the pump assembly in place. The tank (10) can include a removable auxiliary tank (21).

Abstract: The present invention is for a spill prevention system to prevent fuel spills from a connecting line connecting duel fuel tanks on a truck when the connecting line is severed or detached from one of the reducer fittings to which it is attached. The connecting line provides pressure communication between the fuel tanks so that fuel flows from one tank to the other whenever there is an unequal pressure acting on the fuel, which occurs whenever one tank has more fuel in it than the other. The connecting line connects to the reducer fitting located on each fuel tank. A safety valve is immersed in the fuel in each tank and connected to the reducer fittings. Each safety valve is configured to shut off flow to the connecting line when the connecting line is severed or detached from the one of the reducer fittings.

Abstract: A dual plunger valve having nested inner and outer plungers seated within a bore in the valve housing. The valve housing has an inlet port and an outlet port fluidly connected by the bore and sealed from one another by the plungers which are biased towards respective sealing surfaces by a pair of nested biasing elements located between the inlet port and the outlet port. The outer plunger is slidable within the bore and has a lip extending inwardly therefrom. The inner plunger is slidable within the outer plunger between a sealed position and a second position wherein it is in contact with the lip. Pressure in the inlet port which is high enough to overcome the force of the biasing elements causes the inner plunger to slide within the outer plunger to its second position wherein the outer plunger will then begin to slide within the bore to remove the seal between the inlet port and the outlet port.

Abstract: The invention relates to a valve, especially a gas safety valve, comprising a fluid-guiding path (32) that can be sealed by means of a sealing device (30) which is provided with a sealing surface (34) that can be brought against an abutment surface (36) of an abutment part (38) and is at least partially inserted into a receiving region (40) of a receiving part (42). As the sealing device (30) is fixed inside the receiving region (40) in such a way that a counter-holding part (54) can be brought into contact with the sealing device (30) by connection to the receiving part (42), the sealing device is arranged inside the receiving region of the receiving part and is securely held therein in the position thereof.

Abstract: A device for controlling a valve rotary actuator and communicating information regarding the valve rotary actuator, including a non-contact sensor which monitors, through a continuous range of rotation, the rotational position of a rotating unit connected to the valve rotary actuator, a main housing including a pneumatic valve body integrally formed with the main housing, the pneumatic valve body accommodating a valve spool, a sensor housing which supports the non-contact sensor and is connected to the main housing, and a manifold including a pathway in fluid communication with the pneumatic valve body.

Abstract: The invention pertains to a rotary feed-through for supplying a fluid to a rotating machine part with a hollow shaft (3) that is rotatably supported in a housing (1, 2) and has a first sliding surface (29), with a sealing bushing (31) that is arranged in a rotationally fixed fashion within the housing (1, 2) coaxial to the shaft (3) and has a second sliding surface (30) for contacting the first sliding surface (29), and with a collecting chamber (27) that is arranged within the housing (1, 2) and serves for collecting the leakage fluid escaping between the two sliding surfaces (29, 30). The leakage fluid collected within the rotary feed-through can be monitored with the aid of a detection channel (26, 33, 34, 37, 39, 47) in the housing (1, 2) that is connected to the collecting chamber (27) and contains a leakage sensor (41).

Abstract: A type of four-way valve, in the technical field of plastic processing, is designed to facilitate easy production and accurate control. The four-way valve has two inlets and two outlets, including: a container main having a movable cover and divided by four partition boards into five spaces. Each sidewall of its foremost space and hindmost space has a through hole that is respectively connected to a three-way pipe, each partition board has a vent groove, so that all spaces are communicating with each other; a cylinder having a spindle that is connected to a fore piston and hind piston penetrating four spaces from the fore part, the fore piston and the hind piston respectively located in the second space and the fourth space.

Abstract: A valve assembly, comprises a housing having an inlet, an outlet, and an internal volume; a pair of sealing rings and mounted to the housing; and a spherical plug rotatably disposed within the housing for contact with the seating rings, the spherical plug comprising a general spherical main body having a generally cylindrical bore therethrough; and a plurality of slotted plates longitudinally parallel to each other and parallel with the axis rotation of the spherical plug.

Abstract: A compressed gas-aided coating dispensing device includes a valve controlling the flow of compressed gas through the device. The device includes a port for coupling to a source of compressed gas and a port through which the compressed gas flows downstream from the valve. The valve includes a first valve member and a first seat cooperating to control flow through the device, and an operating member for controlling the relative positions of the first valve member and first seat. The valve further includes a second valve member and a second seat. The operating member also controls the relative positions of the second valve member and the second seat.

Abstract: There is provided a method of controlling a flow of a fluid in a microchannel, in which a part of a surface of the microchannel is a hydrophilization portion comprised of a substance being capable of decreasing a contact angle of water by irradiation of light, and the method comprises (1) irradiating the hydrophilization portion with light to decrease a contact angle of water of its surface (hydrophilization step), (2) releasing a substance for increasing a contact angle of water from a material for controlling a contact angle of water which contains the substance for increasing a contact angle of water which provides a surface having a contact angle of water larger than that of the hydrophilization portion after the decreasing of a contact angle of water (releasing step), and (3) bringing the released substance for increasing a contact angle of water into contact with the surface of the hydrophilization portion to adhere the substance for increasing a contact angle of water to the surface, thereby increasing

Abstract: The present invention discloses a microfluidic separating and transporting device, which utilizes free-energy gradient surfaces having micro/nano physical and chemical properties to drive and separate microfluids automatically. The device of the present invention comprises a platform having microchannels. The surfaces of the microchannels have surface energy gradient-inducing rare-to-dense microstructures. The rare-to-dense microstructures are formed in two regions; one is formed in the primary microchannel and used to transport microfluids, and the other is formed in the microfluid bifurcation region. When different microfluids flow through the microfluid bifurcation region, the microfluids will separate automatically to their own secondary microchannels according to the surface energy gradient. Thereby, droplets of different microfluids can be separated apart or split into diffluences.

Abstract: The present invention relates to a residual pressure valve having a valve body and a valve seat. The valve seat is formed by a flexible tubular piece which is fixed in a housing, consists of an elastomer and surrounds the valve body under elastic prestress. Furthermore, the valve body is formed by an axially symmetrical control element. The control element has a cylindrical, barrel-like or biconical basic shape and has a hollow space in each case starting from each of its axial ends, which is in each case connected via at least one channel to an annular control chamber. The control chamber is arranged in the outer surface of the control element and is separated from the respective other control chamber by a radial intermediate wall resting on the flexible tubular piece.

Abstract: There is described a valve assembly having a casing defining a cavity for passage of a fluid; and a valve housed in the cavity; the valve has first sealing means cooperating with the casing to divide the cavity into a first and a second environment; at least one opening permitting flow of the fluid between the first and second environment; and second sealing means varying in configuration to permit/prevent communication between the first and second environment through the opening; and the second sealing means also cooperate with the casing, on the side facing the second environment, to prevent the first and second environment from communicating fluidically through the opening.

Abstract: The fluid flow device includes a first metal component having a hardened engaging surface or portion and a second metal component that is softer than the hardened portion. The second metal component is assembled with the first component such that the hardened surface engages and plastically deforms the second metal component to provide a seal.

Abstract: An apparatus for simultaneously pulling and twisting a cylindrical extrudate as a whole into a helical configuration, that is, a cylindrical configuration that, as a whole, has longitudinal and circumferential vector components. The apparatus is adapted to act on a solidified extrudate by causing it to be pulled downstream in the direction of its longitudinal axis while simultaneously being rotated about its axis. A circumferential twisting and a downstream pulling are simultaneously applied to a cooled and solidified extrudate. This is accomplished with a single piece of apparatus as shown. Thus, by twisting the solidified extrudate downstream both a circumferential and an axial component are imparted to the solidified extrudate. This, in turn, imparts a longitudinal and a circumferential movement to the molten extrudate as it emerges from an extruder die before it is fully solidified. The thus twisted molten extrudate is the cooled and solidified in its twisted condition.

Abstract: A reinforced hose according to an embodiment of the present invention includes a first reinforcing layer having a reinforcement material with a first tensile strength. A second reinforcing layer overlays the first reinforcing layer and includes a reinforcement material with a second tensile strength. The second tensile strength is substantially greater than the first tensile strength. In another embodiment of the present invention, a reinforced hose includes a first reinforcing layer including a reinforcement material having a first level of fatigue resistance and a second reinforcing layer overlaying the first reinforcing layer and including a reinforcement material having a second level of fatigue resistance. The first level of fatigue resistance is substantially greater than the second level of fatigue resistance.

Abstract: A vacuum brake hose having excellent interlaminar bonding strength between a tubular inner layer and an outer layer, as well as available at low cost by mass production. The vacuum brake hose comprising the tubular inner layer formed by using acrylonitrile-butadiene rubber, a reinforcing fiber layer provided on an outer peripheral surface of the tubular inner layer and the outer layer formed on an outer peripheral surface of the reinforcing fiber layer by using chloroprene rubber, wherein the reinforcing fiber layer is impregnated with adhesive consisting essentially of components (A) to (C) and interlaminar bonding between the tubular inner layer and the outer layer is effected through the adhesive: (A) chloroprene rubber; (B) acrylonitrile-butadiene rubber; and (C) at least one filler of carbon black and a white filler.

Abstract: A fabric wherein air layers are formed between a plurality of textures of the fabric to enhance the property of keeping warm and to soften the textile thereof. The obtained fabric is very luxurious and is enhanced in the degree of freedom in the manner of weaving thereof and thus the scope of the application can be widened. The fabric includes a base texture having base warp and base weft; and a cover texture including cover warp running in the same direction as that of the base warp and cover weft interweaved with the cover warp. The cover warp are adapted to be intertangled with the base weft in every few intervals to form loops protruding between the adjacent points of capture on the base texture, and the cover texture forms a plurality of tubular air layers on the base texture.

Abstract: A technique allowing manufacturers to produce woven moisture management fabrics with good moisture transfer properties is based upon a model of the fabric construction, thereby avoiding a manufacturing trial-and-error process. An initial woven fabric design including hydrophilic and hydrophobic yarns is modelled, the warp and weft yarns generally lying in a plane of the fabric. By orthographic projection onto respective planes substantially parallel to the plane of the fabric, a first view and an opposing second d view of a unit cell of the model is produced. If the total projected area of hydrophobic yarn on one of the first and second views is between 40% and 70% of the total projected area, and total projected area of hydrophilic yarn on the other of the first and second views exceeds 50% of the total projected area, then a fabric according to the fabric design will have near optimum moisture wicking properties and is manufactured to the design.

Abstract: A core material for piping comprising a cord portion and a belt portion which are integrally molded from a synthetic resin material and further having a hook portion integrally formed on one surface of at least any one of the cord portion and the belt portion, the core material for piping being provided to a required position of a facing sheet material, wherein hardness of the hook portion is set higher than the hardness of the cord portion and the belt portion, thereby having a required engagement strength while securing easiness of bending of the cord portion and the belt portion.

Abstract: An existing tying machine (20) is modified by the addition of components to produce a self contained laundry tie-out station (10). The components for the modification include a linear slide support yoke frame (22), attached on top of the tying machine's component mounting platform (24) with a pneumatic linear slide unit (34) mounted on top. A hanger slide rod assembly (40) is attached to the mounting face of the linear slide unit for retaining a selected group of hangers (36) containing laundered clothing (36?). Conveyer feed lines are aligned with distal ends of the recessed hanger slide rod (42) when in an at rest position. A pneumatic system operates the slide unit and controls are integrated into the tying machines existing electrical system. The invention draws the group of hangers into the tying machine where it bunches the hangers together and electromechanically binds the group with a twist tie.

Abstract: A filling machine assembly having supports for supporting any suitable fixture. At least one of the supports includes a plurality of modules with each of the modules including at least one coupling member for interlocking adjoining modules to form a continuous uninterrupted support. The modules can include sides with at least one coupling member mounted to each side. The coupling members are preferably complementary in configuration with each other for interlocking the first and second modules.

Abstract: A fuel dispensing nozzle is provided with fuel activated levers that engage the vehicle fill pipe to prevent drive-off without paying. Fuel pump pressure acts on plungers to pivot fill pipe levers, against spring pressure, to lock the two together. Movement of the levers is initially prevented by a trigger that is spring biased forward on the nozzle spout. Since the fill pipe is not large enough to pass the trigger, insertion of the spout into the fill pipe moves the trigger against spring pressure to uncover the levers. The levers are locked to the fill pipe as long as pump pressure is present. Removal of fuel pressure allows the levers to be withdrawn by spring action. A breakaway joint is provided to stop fuel flow in the event of drive-off with the fuel nozzle in a fuel filled pipe.

Abstract: A canister filling system is provided for independently filling multiple canisters from a common set of storage stations prioritized in a cascaded manner. The system includes first and second fill stations configured to receive and independently fill canisters with pressurized gas. First and second storage stations store gas at corresponding first and second charge pressures, respectively. A supply-chain joins each of the first and second fill stations to both of the first and second storage stations. First and second valve assemblies are provided in the supply-chain to monitor, independent of one another, the canister pressures at the corresponding first and second fill stations. The canister pressures represent the pressure within corresponding canisters.

Abstract: A filling system for an anesthetic evaporator allows an adapter neck (5) of a bottle adapter (1), which said adapter neck is coded in an anesthetic-specific manner, to be inserted into the filler neck of a filling device in a simple manner. A hinge (39) is provided between the adapter neck (5) and the threaded sleeve (2) of the bottle adapter (1).

Abstract: A collapsible funnel and a method for making a collapsible funnel is disclosed. In accordance with one embodiment of the invention, the collapsible funnel may be provided with a screen for filtering fluids placed into the funnel. In accordance with another aspect of the invention, a funnel is provided which includes multiple adjacent panels and a glue strip adjacent to one end, which enables the funnel to be manufactured with conventional process machines.

Abstract: A closure device for tank filler necks in motor vehicles. The closure device has the object of configuring the tank filling operation to be more comfortable. This objective is achieved in that at least two closure elements are swivel-mounted on the tank filler neck, the closure elements having insertion bevels on their top that are designed in such a way that when a fuel nozzle is placed on them the closure elements swivel and open the tank filler neck.

Abstract: A nozzle inhibitor is positioned in a filler neck closure assembly to prevent a user from pumping unleaded fuel into a diesel fuel tank. The nozzle inhibitor blocks full insertion of a small-diameter unleaded fuel nozzle into the filler neck closure assembly yet allows full insertion of a large-diameter diesel fuel nozzle into the filler neck closure assembly.

Abstract: A stump grinding disk includes a metallic wheel defining an axis of rotation and including a pair of side surfaces and a circumferential outer edge surface. The outer edge surface includes a plurality of circumferentially spaced recesses. Each recess extends axially completely through the disk. A plurality of side cutting elements are mounted on each side surface. A plurality of outer peripheral cutters are spaced circumferentially apart around the outer edge surface. Wear strips are mounted in respective recesses. Each wear strip includes a metal matrix in which hard particles are disposed. Each wear strip defines a radially inner surface affixed to the wheel, and a radially outer surface arranged substantially flush with adjacent portions of the outer edge surface.

Abstract: A planing machine including a base, at least two support columns disposed on the base, and a carriage assembly carrying a cutterhead. The carriage assembly may be mounted on the support columns. At least one of the base and the carriage assembly is movable vertically towards the other of the base and the carriage assembly. The planing machine may have panel mounted on at least one one of the base and the carriage assembly and extending between the carriage assembly and the base housing for preventing user contact with the cutterhead.

Abstract: A clamp apparatus for retaining coaxial components on a shaft of a wood fragmenting rotor assembly includes two interconnectable clamp segments having respective recesses that define a receptacle for receiving a rotor assembly shaft when the clamp segments are interconnected and moved toward one another. Clamp camming surfaces extend radially inwardly from at least a portion of each of the respective recesses and engage a shaft camming surface of a rotor assembly shaft as the clamp segments are moved toward one another about the shaft. A closure moves the clamp segments toward each other, bringing the clamp camming surfaces into engagement with shaft camming surface of the rotor assembly and producing a camming action between the clamp camming surfaces and the shaft camming surface that drives the clamp segments axially inward along the shaft, which drives the coaxial rotor assembly components into desired respective axial abutting positions along the shaft.

Abstract: A knife for cutting a profile including a curved surface in a workpiece may comprise a cutting face including a cutting edge in the shape of the profile to be cut, a bore for mounting the knife on a rotary cutterhead, the bore oriented parallel to the substantially planar cutting face, and a back surface adjacent the cutting face and including the cutting edge, the back surface contoured in the shape of the profile and partially radially encompassing the bore. The knife may be sharpened by grinding the cutting face to expose a new cutting face. The back surface is in the shape of the profile, therefore each new cutting face includes a cutting edge with a substantially similar profile. Knives having tips of, for example, carbide may be radially interspersed on the rotary cutterhead between the profile knives.

Abstract: The sliding table has a stationary bed and a carriage which is movable relative to the bed. The carriage has an upper surface on which a work piece is seated. The bed has rollers and the bed has a track. Alternatively, the bed has a track and the carriage has rollers. In either case, the rollers roll back and forth in the track. Either the rollers are biased into contact with the track or the track is biased into contact with the rollers. In the former case, an eccentric and a coil spring are used to bias the rollers. In the latter case, the track has a bearing plate which is biased by a rubber strip or O-ring cord stock into contact with the rollers.

Abstract: A method of treating a pattern wood for a wood panel. A liquid mixture of Chinese herbs and medicines is prepared using Chun goong, Dan hyang, Jung hyang, Peppermint, Pyoh gwah, Gong sah in, Cinnamon, Dang gyih, Sam behk cho, Uh sung cho, and Behk hwa sa suhl cho. A pattern wood is heated in a vacuum tank at a temperature in the range of 70 to 90 degrees centigrade. The liquid mixture of Chinese herbs and medicines is poured on the pattern wood in the vacuum tank and the liquid mixture and pattern wood are maintained in the vacuum tank for a period of 1 to 4 hours. The pattern wood is then removed from the vacuum tank, dehydrated, dried.

Abstract: A load control system controls movement of a cutter wheel of a stump cutter wherein the cutter wheel rotates at a rotational speed independent of the rotational speed of an engine which powers the stump cutter. The stump cutter includes a hydrostatic transmission having a variable displacement hydraulic pump whereby the rotational speed of the cutter wheel is independent of that of the engine. The load control system includes a sensor for directly or indirectly sensing the rotational speed of the cutter wheel, a microprocessor for determining a response to changes in cutter wheel rotational speed and trim valves for controlling the feed rate of the cutter wheel.

Abstract: A wood chipper includes a control system for controlling feed wheel rotation and engine operation to provide safety features and a fuel-saving mechanism. The control system allows the engine to start only when the feed wheel is in neutral; stops and/or reverses rotation of the feed wheel in response to an increased load on the engine; and dethrottles the engine if the feed wheel remains in neutral for a predetermined period of time. A pair of electric switches are activatable by the feed bar whereby an electronic control unit (ECU) can determine the position of the feed bar based on activation or non-activation of the switches and control the feed wheel and engine in light thereof. The ECU controls a pair of directional control valves via respective solenoids to control flow of hydraulic fluid to control rotation of a feed motor which drives the feed wheel.

Abstract: A method and a device for producing slots in workpieces are disclosed. An oscillatory drive is provided, on the output shaft of which a saw blade is accommodated by one end, and at the other end of which a cutting edge is provided. The oscillatory drive is positioned on a workpiece with a defined angle between the workpiece surface and the saw blade, the saw blade being driven in an oscillating manner and moved along a guide in a direction extending radially in relation to the output shaft. Connecting elements can be inserted into slots produced on two workpieces in this way so that they match and can be adhesively bonded to the two workpieces, in order to produce a permanent and precise connection between the workpieces.