Abstract: A torque sensor that includes a sensor housing, a sensor input member at least partially received in the sensor housing, a sensor output member at least partially received in the sensor housing, a torsionally resilient coupling member that couples the sensor input member to the sensor output member and an optical sensor system that includes a light source, one or more encoders and one or more optical sensors. The encoder or encoders periodically transmit light between the light source and the at least one optical sensor based on an amount of relative rotation between the sensor input member and the sensor output member.

Abstract: The present invention related to a load detecting apparatus which comprises a hollow cylindrical strain body (11) provided with, on an outer peripheral surface or an inner peripheral surface thereof, at least one strain detecting element (16, 18, 19, 20); a first member (21) fixed to an one axial end of the strain body to close an opening, and a second member (24) fixed to an other axial end of the strain body. One of the second member and the first member receives a load in a direction orthogonal to an axis of the strain detecting body, so that a shearing force is applied to the strain body.

Abstract: A thermophoresis-resistant dilution apparatus for dilution of gas from an emission source, such as a combustion engine, for example a gasoline, diesel or natural gas engine. The apparatus is designed to simulate atmospheric dilution, mixing and cooling processes, enabling sampled emission gas and dilution air to thoroughly mix and cool to ambient temperature, allowing some volatile and semi-volatile gas-phase organics to nucleate, condense and coagulate to their usual aerosol phase. The apparatus is designed to resist thermophorectic forces acting on the particulate matter in the sampled emission gas, thereby preventing particulate matter losses. In addition, the apparatus evenly distributes the dilution air into the sampled gas for improved mixing.

Abstract: A micro sample heating apparatus has a substrate, a micro heating device disposed on a first surface of the substrate, a cavity having a vertical sidewall and corresponding to the micro heating device positioned in a second surface of the substrate, and an isolation structure positioned on the second surface of the substrate. The isolation structure has an opening corresponding to the cavity, and the cavity and the opening form a sample room.

Abstract: A method and system for sampling high vapor pressure substances is provided. In one embodiment, a sample is pre-concentrated by compression and condensation, water is removed by a condensing gas dryer, particulates are removed from the sample with an electrostatic precipitator; and the sample is shuttled through a sintered core at high vapor pressure so that molecules are condensed on the surface of the sintered core. In another embodiment, a system for sampling high vapor pressure substances includes a shuttle having a first piston and second piston for shuttling a sample through a sintered core at high vapor pressure and a condensing heat exchanger between the first piston and the second piston, the condensing heat exchanger including the sintered core.

Abstract: A system for sampling emission products from an emissions source, for example combustion engines including gasoline, diesel and natural gas engines, for subsequent measurement and analysis of the emission products. The system includes a dilution apparatus, a residence time chamber, a plurality of sampling probes within the residence time chamber, and a plurality of sampling trains connected to the sampling probes to take simultaneous representative emission samples for subsequent analysis. The system has particular use in quantifying chemical and toxic trace species from emissions sources. The results of the analysis can be used to formulate decisions on changes in engine design strategy, and can be used to determine the effectiveness of aftertreatment systems on the emissions source.

Abstract: A residence time chamber and sampling apparatus for use in a system for sampling emission products from an emissions source, for example combustion engines including gasoline, diesel and natural gas engines, for subsequent measurement and analysis of the emission products. The results of the analysis can be used to formulate decisions on changes in engine design strategy, and can be used to determine the effectiveness of aftertreatment systems on the emissions source. The residence time chamber includes a plurality of isoaxial sampling probes, with a plurality of sampling trains connected to the sampling probes to take simultaneous representative emission samples for subsequent analysis. The residence time chamber minimizes many noise factors which can affect the accuracy of the test system, by applying isokinetic sampling and by reducing the interaction of the sampling gas and the particulate matter with the sampling probe inlets and with the various surfaces of the residence time chamber.

Abstract: A method of using an aseptic sampling arrangement. The sampling arrangement includes a septum cartridge and a securing element for use with a fluid enclosure. A locking arrangement is provided to allow selective access to the septum cartridge and the securing element. The sampling arrangement further includes a needle, a tube, and a collection bag. The sampling arrangement can be used to monitor the quality of a fluid product. The method of monitoring includes obtaining a fluid product sample from the fluid enclosure within the collection bag. The collection bag is then incubated for a period of time during which oxygen permeates the bag to simulate post-pasteurizing conditions and/or pre-pasteurizing conditions of the fluid product. The method further includes monitoring the level of contamination detected within the fluid product sample.

Abstract: Disclosed is an extractive sampling system to secure representative fluid samples and transport to analyzers as a sample destination. The invention is directed to modification of sample acquisition components and the addition of elements to overcome sample obtainment issues that occur in a variety of fluids to be samples.

Abstract: A mechanism for inducing non-reactive linear motion of a body employs a motor acting through a drive mechanism to rotate a pair of radial arms in counter-rotating directions, synchronously, about a central axis. A gear is rotatably supported about an axis normal to the plane of rotation of the arms, at the outer end of each arm. These two gears are weighted at points on their peripheries and the two gears are in mesh with identical, nonweighted fixed gears supported about the central axis, so that the weighted gears undergo one full rotation for each rotation of the arms. During each rotation of the arms, they experience two alignments, at two radially opposed positions. In one of the positions, the weighted segments are aligned so as to be positioned away from the central axis. At the other alignment position of the arms, the weighted segments are positioned close to the central axis.

Abstract: A gear-changing device for a speed-changing transmission, in particular for motor vehicles, includes at least two pot-shaped gearwheels rotatably borne on a transmission shaft and a synchronizer clutch adapted to alternately couple the respective gearwheels with the transmission shaft. A sliding sleeve of the synchronizer clutch is displaceable over respective synchronizer rings, each having locking gear teeth, onto respective gear-selecting gear teeth of the gearwheels by actuation of a gear-changing rocker, which contacts diametrically opposing positions of the sliding sleeve. The two pot-shaped gearwheels have recesses facing towards each other and radially-outer gear rims. The gear-selecting gear teeth and, as much as possible the synchronizer clutch with the two synchronizer rings, are disposed in the recesses.

Abstract: A single motor transmission shifting mechanism with exactly one electric motor for generating drive motions for selecting, and for generating drive motions for shifting gears of a motor vehicle transmission device, and with a threaded spindle for switching from a mode, in which selection motions can be effectuated, into a mode, in which shifting motions can be effectuated, and with a shifting shaft, which can be moved in axial direction for selecting, and which can be rotated around its longitudinal axis for shifting, wherein all components, transferring the drive load for shifting from the electric motor to the shifting shaft during shifting operation, maintain their axial position relative to the longitudinal axis of the threaded spindle during this shifting operation.

Abstract: A drive device for a hatch of a motor vehicle, wherein a spindle drive is provided with a threaded spindle and a spindle nut mounted on the threaded spindle, by which drive the first fastening element and the housing tube can be driven axially relative to each other. The spindle drive can be rotatably driven by an electric motor. The threaded spindle has a thread with a lead that changes over the length of the threaded spindle.

Abstract: An apparatus and method for driving a driven unit of a printing press, specifically a printing couple or a folding unit of a rotary web press, is disclosed. A cylinder or roller to be driven is driven by a drive with an interposed transmission. An input element is mounted on a shaft of the cylinder or the roller to be driven and an output element is assigned to the drive co-acting with the input element. A shaft of the drive is carried in at least two bearing locations. The output element is mounted directly to the shaft of the drive such that the output element is located immediately adjacent a bearing location of the shaft of the drive.

Abstract: A damping material for mechanical parts includes a non-coupling interface that comes into contact without being metallically coupled. The non-coupling interface is formed from the surface to a predetermined internal depth, and may assume a non-penetrative structure. In such circumstances, it is preferable that a depth of the non-coupling interface be equal to, or greater than 20% of a dimensional thickness in the same direction. The non-coupling interface may be formed so as to penetrate from one surface to another surface. The damping material for mechanical parts is a gear damping material for forming a gear having damping characteristics, and has: a main body portion formed in a ring shape or in a disk shape; and a predetermined portion to form teeth shape provided at the outer periphery side face or at the inner periphery side face. The non-coupling interface is formed from at least one end face in an axial direction of the main body portion.

Abstract: A wave gear drive (1), wherein a rigid internal gear (2) is formed in a conical gear and a flexible external gear (3) is formed in a spur gear with a module m. The number of the teeth of the external gear (3) is reduced by the quantity of 2n (n is a positive integer) less than that of the internal gear (2), and the amount of the deflection of the major axis of the elliptic rim neutral line of the external gear (3) in the cross section perpendicular to the axis of the external gear (3) in the tooth trance direction is set to 2 ?mn (?>1). In the cross section perpendicular to the axis at the intermediate part in the tooth trance direction, the engagement of the teeth of the both gears (2, 3) is approximated by the engagement of a rack to obtain the moving route (M) of the teeth of the external gear (3) according to the rotation of a wave generator (4).

Abstract: An adjustable steering column assembly of a vehicle has a central lock device for selectably locking an adjustable steering housing and co-extending steering shaft to a stationary bracket or chassis. For driver convenience and comfort, the steering housing and shaft are together adjustable with respect to the bracket. The lock device has a roller actuator preferably having inner outer members with a lever supported operably in between by a guide feature for movement along a first centerline substantially parallel to the steering shaft. Preferably, cam couplers are located between the outer member and the lever and the inner member and the lever for converting movement of the lever along the centerline to longitudinal movement of a carrier that traverses the centerline.

Abstract: An improved method for fabricating a hybrid steering wheel is provided that may integrate the overmolding of a polymeric layer with the formation of the rim to simplify the manufacturing process. The improved method for fabricating the hybrid steering wheel includes: forming a metallic skeleton which includes a hub and a plurality of fixed spokes extending from the hub; injection molding a first polymeric material to form a core, wherein the core arcuately connects the ends of the spokes; and injection molding a second polymeric material to form a skin over the core, wherein the core and skin form a rim of said steering wheel.

Abstract: A vehicle steering wheel being rotatable around a steering wheel axis (A), includes a steering wheel hub (38), a receiving part (12) configured as a separate, prefabricated component and an airbag module (13) with a generator carrier (10), the generator carrier (10) being inserted into the receiving part (12), the receiving part (12) and the generator carrier (10) being made of plastic. The invention also includes a vehicle steering wheel being rotatable around a steering wheel axis (A), having a steering wheel hub (38), a receiving part (12), and an airbag module (13) with a generator carrier (10), the generator carrier (10) being inserted into the receiving part (12).

Abstract: An improved decorative shell covering for steering wheels is provided that enables the seams between the shells to be out of the driver's line of sight and in a position less noticeable to the touch of a driver's fingers, ensures proper placement of the shells on the wheel, and prevents movement of the shells after placement. The use of the improved covering further reduces the cost of decoration and wheel processing scrap, manufacturing costs, and transportation costs. The improved covering includes a first shell for covering a first portion of an outer surface of the wheel. The first shell may have an outer surface comprising an arc that subtends generally more than about 180° and an inner surface configured to correspond with the first portion of the outer surface of the wheel. The covering may further include a second shell for covering a second portion of the outer surface of the wheel.

Abstract: One of retard passages, which supplies working fluid to one of retard chambers, is a dedicated passage. The other remaining retard passages, which supply the working fluid to the other remaining retard chambers, are branch passages, which are branched from a retard passage that serves as a supply passage. With this construction, a flow quantity of working fluid per unit time supplied from the one of retard passages to the one of retard chambers becomes larger than a flow quantity of working fluid per unit time supplied from the other remaining retard passages to the other remaining retard chambers. Thus, the one of retard chambers can be filled with the working fluid earlier than the other remaining retard chambers.

Abstract: A weight 4 which is held by a weight holder 3 in a balancer has a pressing face 4b? which is pressed against a guide face 12a provided along the circumferential direction of rotation of the weight holder 3 by centrifugal force generated by rotation of a rotary body. When the rotary body rotates, the weight 4 which is pressed against the guide face 12a via the pressing face 4b? changes its position relative to the rotary body in the circumferential direction of rotation, whereby the weight 4 is disposed in a position in which it suppresses whirling motion of the rotary body. The guide face 12a and pressing face 4b? are inclined relative to the axial direction of rotation so as to tend to outward side in the diametrical direction of rotation as tending to one side in the axial direction of rotation. The weight 4 is pressed against a receiving portion 7a? by component of the centrifugal force, in which the component acts along the guide face 12a and pressing face 4b?.

Abstract: Provided is a wave gear device capable of transmitting a high torque. The silk hat type wave gear device comprises an annular circular spline having internal teeth formed thereon; a flexible flex spline having external teeth formed to mesh partially with the internal teeth and arranged on the inner side of the circular spline; and a wave generator arranged on the inner side of the flex spline. The flex spline includes a boss portion adapted to be fixed on an external member, and a connecting portion for connecting the external tooth portion and the boss portion. The connecting portion is so shaped that a sectional shape when cut in a plane extending through an axis of rotation of the flex spline is gradually reduced in thickness toward the substantial center from the side of the external tooth portion and the side of the boss portion.

Abstract: An improved differential unit for an integrated hydrostatic transmission (IHT) is provided. The differential unit comprises an input gear, a cross-shaft disposed within a central opening of the input gear, and a pair of clutch members disposed coaxial with the input gear. One of each clutch member is disposed on opposite sides of the cross-shaft. A first plurality of friction members extend from each clutch member. The differential unit also comprises a pair of side couplings, each coaxially disposed within one of the clutch members, and a second plurality of friction members extending from each side coupling. Each clutch member includes a cam surface that comes in contact with the cross-shaft when the differential unit is under normal operating conditions. Alternative embodiments are also described herein.

Abstract: An improved differential unit for an integrated hydrostatic transmission (IHT) is provided. The differential unit comprises an input gear, a cross-shaft disposed within a central opening of the input gear, and a pair of clutch members disposed coaxial with the input gear. One of each clutch member is disposed on opposite sides of the cross-shaft. A first plurality of friction members extend from each clutch member. The differential unit also comprises a pair of side couplings, each coaxially disposed within one of the clutch members, and a second plurality of friction members extending from each side coupling. Each clutch member includes a cam surface that comes in contact with the cross-shaft when the differential unit is under normal operating conditions. Alternative embodiments are also described herein.

Abstract: A method for synchronizing multiple generators includes positioning a pilot feature of a shaft of a first generator positioned at a first angular position that is substantially aligned with a first predetermined reference point located at a predetermined angular position relative to an axis, locking the shaft of the first generator at the first angular position, aligning a pilot feature of a first shaft of a second generator with a second angular position that is substantially aligned with a second predetermined reference point located at a position relative to the axis that is substantially equal to the predetermined angular position, calculating an angular difference between the two angular positions, and rotating a second shaft splined with the first shaft of the second generator about the axis in another direction, based on the calculated angular difference.

Abstract: The present invention concerns a process for the preparation of high density green compacts comprising the steps of providing an iron-based powder essentially free from fine particles; optionally mixing said powder with graphite and other additives; uniaxially compacting the powder in a die at a compaction pressure of at least about 800 MPa and ejecting the green body. The invention also concerns the powder used in the method.

Abstract: A twist drill for use, predominantly by non-professional do-it-yourself workers incorporates a flute architecture with an internal ridge for promoting the break up of chips into short length components. The tip of the twist drill includes an axial relief construction for improved performance across a wide variety of materials, and a highly sloped face for prompting transport of chips away from the drill tip.

Abstract: The combination beverage holder with bottle opener is an insulated beverage holder for use with cold drinking containers, and has a substantially hollow body open at its top and a beverage support wall at its bottom. A bottle opener is attached to the bottom wall or to a rigid support attached to the bottom wall and proximate sidewalls of the beverage holder. A plurality of straps having extensions with hook and loop attachment fasteners are attached around the substantially hollow body for cinching the beverage holder snugly to the beverage container and for attaching the beverage holder to a post or other support.

Abstract: A tool for removing a cap from a pest control device includes a hub and at least four fingers depending from the hub in circumferentially spaced relationship with each other to cooperatively define a socket for receiving the cap within the tool. The fingers are resiliently moveable transversely outward relative to the hub upon receiving the cap into the socket whereby the fingers are biased transversely inward against a sidewall of the cap when the cap is received in the socket. A plurality of stops extends from fewer than all of the fingers laterally inward of the socket. The stops are adapted for contacting a top of the cap upon receipt of the cap within the socket such that the fingers and stops cooperate to orient the tool on the cap.

Abstract: Spin-in and spin-out apparatus and methods are presented wherein an oilfield tubular spinner used in combination with a wrench detects the shouldering-up of tubulars during make-up and tubular thread disengagement during break-out. Sensors are employed to quantify measurables indicative of shouldering-up and thread disengagement, the measurables being used to shutdown spin-in and spin-out operations. Thresholds are employed to detect measurable values of interest. Timers are employed to monitor and control the spin-in and spin-out operations.

Abstract: A torque tool for tightening or loosening connections has a driving element engageable with a turnable part of the connection for turning the turnable part of the connection for tightening or loosening the connection and turnable about an axis, and a power drive configured for acting on the driving element such that the drive acts on the driving element to turn the driving element and thereby to turn the turnable part of the connection over a partial stroke and a space is formed between the drive and the driving element, and the drive is then displaced over the space toward the driving element to act again on the driving element to turn the driving element and thereby to further turn the turnable part of the connection over a further partial stroke.

Abstract: A wrench tool is described which comprises an orifice that is formed to control the rotation of a hexagonal work piece. The orifice is substantially cylindrical and comprises an array of eighteen principle longitudinal grooves positioned therein substantially forming a symmetrical pattern around an imaginary central axis. The eighteen grooves are formed and spaced apart so as to create an array of eighteen principle longitudinal protuberances. The protuberances substantially form a symmetrical pattern around the imaginary central axis for engagement with the work piece. And, the protuberances are spaced apart by predetermined dimensions, and each protuberance has a predetermined height to length ratio.

Abstract: An adjustable wrench including a head having parallel jaws. The parallel jaws include a first fixed jaw and a movable second jaw. The second jaw is mounted to the head for parallel, sliding movement relative to the first jaw. The wrench also includes a first handle rigidly coupled to the first jaw, and a second handle pivotally mounted to the first handle and coupled to the second jaw. The second handle is coupled to the second jaw such that movement of the handles relative to each other causes the parallel jaws to open and close.

Abstract: A wrench includes an H-shaped handle with an open end and a box end connected two ends of the handle. The handle includes two elongate recessed areas defined in two wide sides thereof and each of the two recessed areas extends to two respective root portions of the open end and the box end. A width is 3 to 4 times of a thickness of the flat surface. A thickness of each of the open end and box end is the same as a thickness of the handle. The wrench is light in weight and the function ends can be easily inserted to a narrow space.

Abstract: Improved locking pliers are provided with a member having a threaded aperture welded, attached, or formed onto the handle of the pliers. The threaded aperture is adapted to receive a threaded rod or member for the application of pulling and pushing forces and other controlled movement or mobilization of the pliers. The axis of the threaded aperture is parallel to the axis of the adjustment knob of the pliers.

Abstract: A power tool generally includes a housing and a motor assembly connected to a transmission assembly. The motor assembly and the transmission assembly are secured against rotation in the housing. A plurality of protrusions extends from a component of the transmission assembly. The power tool further includes an output spindle and a spindle lock assembly that connects the output spindle to the transmission assembly. The spindle lock assembly includes an anvil, an outer ring member and a plurality of roller members. The roller members and the protrusions are disposed between the anvil and the outer ring member. An indicator member extends from the outer ring member. A compliant member connects the outer ring member to an interior portion of the housing. A scale is connected to an exterior portion of the housing, wherein the indicator member moves relative to the scale to indicate a value of torque at the output spindle.

Abstract: A torque wrench is disclosed that includes a drive head that defines a torque transfer axis and that is adapted to transfer torque to a workpiece. The torque wrench includes a tubular handle that is operative, upon rotation relative to a lever, to increase the bias on a spring upon lengthening a distance between the drive head and the opposite end of the handle, and to decrease the bias on the spring upon shortening the distance thereby setting the predetermined operating force.

Abstract: A tool handle device includes a hand grip member having a bore formed through the hand grip member for receiving a shaft, the shaft has an orifice formed in one end for detachably engaging with a tool member and for rotating or driving the tool member, the shaft further includes an engaging hole formed in the other end portion for engaging with a driving tool and for allowing the shaft of the hand grip member to be selectively rotated and driven by the driving tool, the shaft may include a noncircular segment extended out of the hand grip member for being driven by the driving device. The shaft has a noncircular cavity for engaging with a noncircular connector of the tool member.

Abstract: Embodiments of the present invention provide a boring bar tool including a tool carrier adapted to translate along a boring bar. Adjustable guide members may be coupled with the tool carrier and adapted to contact the boring bar. The guide members may also be adapted to sufficiently support the tool carrier on the boring bar.

Abstract: Disclosed are a method and apparatus in the field of computer numerically controlled machine tools. A rotating workpiece is brought into contact with a tool, the tool being disposed in a rotating tool holder and traversing an eccentric path. By rotating the tool holder and workpiece synchronously, various characteristics forms may be produced. The method in some embodiments is useful in the turning of noncircular shapes, such as ovoid pistons and other parts.

Abstract: The present invention provides a lathe which accumulates a reduced amount of chips on a slide member serving as a tool holder mounting base and which enables a reduction in the forward-backward dimension of the entire lathe. A lathe includes a spindle 2 that rotatably supports a workpiece and processing means 4 located in front of the spindle 2. The lathe moves one or both of the spindle 2 and the processing means 4 forward and backward to execute machining on the workpiece. The processing means 4 includes a tool 40, a tool holder 41 that supports the tool 40, and a slide member 42 which is slidable in a lateral direction and which supports the tool holder 41. The slide member 42 has an inclined surface 42c that is positioned lower as the inclined surface 42c approaches the spindle 2 and on which the tool holder 41 is mounted and supported.

Abstract: A flash vaporizing liquid jet cutting tool and method for piercing with minimal damage to the cut material. The liquid is preferably superheated water, typically with abrasive particles added after the jet is expressed through a nozzle (abrasive water jet, AWJ) or with abrasive particles added before the jet is expressed through a nozzle (abrasive slurry jet, ASJ). In piercing, only a portion of water that has not changed phase enters into the cavity or must leave the cavity and the piercing pressure, which can damage the material, is therefore reduced.

Abstract: A clamping mechanism for a food slicing machine having a product holder that is driven cyclically through a food slicing blade along an arcuate or linear path. The clamping mechanism is driven by the drive means that drives the product holder, thereby assuring the timing of the clamping during the cutting portion of the stroke. A drive rod extends from the drive means, which can be a driveshaft, and extends to a plate that is pivotably mounted to the product holder. The plate pushes plungers through the sidewall of the holder to seat against and clamp the food product against the sidewall of the holder.

Abstract: A gear and shaft assembly that translates the bevel of a power tool to an indicator more easily readable by an operator provides a front bevel indicator and locking mechanism. A locking mechanism is conveniently placed within reach of the operator and directly controls the motion of the gear assembly. The front bevel indicator may provide a higher resolution of the tilt angle by selection of the various gear ratios of the gears that translate the bevel position of the power tool mounted in the rear to the front of the mount of the power tool.

Abstract: A transmission device for a band saw includes mainly a transmission, which, connected axially with a motor, consists of a driving gear set, a driven gear set, an output gear set and a gear rod. The gear rod is connected with a gearing jaw engaged with the output gear set inside the transmission and having a pushing device able to push the output gear set forward or backward to engage with the driven gear set to rotate in different speeds. And, combined with a driving mechanism, various speeds can therefore be selected for the sawing band to work, depending on the properties of the material to be sawed, upgrading sawing quality and efficiency.

Abstract: Driver distraction in a motor vehicle is assessed by capacitively detecting the driver's head pose relative to the forward direction of vehicle motion. A symmetrical array of sensor electrodes is disposed in the cockpit ceiling above the driver's head, and pairs of electrodes disposed along varying axes of rotation with respect to the forward direction are successively activated for capacitance measurement. The capacitance measurements are combined to form a signal whose strength depends on the degree of alignment between the driver's head (i.e., the head pose) and the respective axes of rotation, and the driver's head pose is calculated to assess driver distraction.

Abstract: A guitar hanger and non-mechanical locking device for hanging a guitar having a neck and head portion, the hanger configured for hanging a guitar from its neck portion and for minimizing inadvertent release from the hanger. The guitar hanger includes a support member and appended thereto, a set of prongs spaced apart from one another to receive the neck portion therebetween but not the head portion. The prongs are further characterized as having converging ends spaced apart from one another such that the neck is capable of passing between the prongs in a first orientation but not in a second orientation.

Abstract: A musical workstation system produces a display presentation in one of a musical composition responsive to musical composition data and responsive to one or both of input variables and a selected operating mode. The system is comprised of (1) means to provide the musical composition data (such as local storage (ROM, RAM, CD-ROM, hard disk etc.), or via a communications interface to an external device (such as another music workstation, a master controller, a computer), a memory, a selection subsystem, a controller, and a display subsystem. The memory selectively stores the received original musical compositions. The selection subsystem determines a selected operating mode and display format. The controller, responsive to the selection subsystem, provides means for selectively controlling the storing of the musical composition data in memory and selectively processing (e.g.

Abstract: An electronic musical page turner is consisted of a LCD (liquid crystal display) display, triple foot actuator switches, and an external personal computer, scanner, USB portable storage device, and USB wireless electronic pen. The system transfers and displays of electronic score music files using many available software and electronic music files format such as PDF, Scorches, Solora, etc . . . The musical score data can be exchanged between the LCD display and a personal computer through the use of foot actuators and command functions on LCD display's control menu. The LCD can display two pages of music score in landscape viewing mode or one page in portrait viewing mode. Foot actuators are manipulated by the performer to progress the sheet music score on the LCD display. The performer can turn the electronic sheet music score to next page, previous page, or home page by pressing specific foot actuator.