Abstract: The present disclosure relates to a method and an apparatus for measuring a flow rate through a vessel, such as a conduit or pipeline. The method comprises providing a reference parameter, measuring a first parameter at a first position at the vessel and determining a difference between the first parameter and the reference parameter. The flow rate through the vessel is determined based on the difference between the first parameter and the reference parameter.

Abstract: An apparatus, and an associated method, forms a user interface permitting input of input instructions to an electronic device. Input commands are evidence by tactile input forces applied to a force receiving surface. Force sensing elements are positioned to sense indications of the tactile input force. The force sensing element is caused to exhibit a selected input parameter value through application of a selected force thereto by application of a tightening torque to a fastener positioned in proximity to the force sensing element.

Abstract: Disclosed is a rotor for a torque sensor configured to improve a mechanical coupling force with respect to a jig in a process of adjusting a torque center, thus enabling a fine adjustment, the rotor including a rotor body having a sleeve coupled to a rotating shaft and a yoke protruding from an outer circumference of the sleeve, a ring-shaped magnet coupled to an outer circumference of the yoke, and an anti-slip structure formed on the rotor body and partially coming into contact with a jig during a rotating process for adjusting a torque center, thus inhibiting slipping between the rotor body and the jig when a rotating force is transmitted, so that slipping between the jig and the rotor body is inhibited to enable precise transmission of the rotating force whereby accuracy is improved during fine adjustment of the torque center.

Abstract: Components of interest are captured on a resin column from a sample of exhaust gas from an operating vehicle. Makeup air is added to the residual exhaust gas flow exiting the resin column at a junction downstream of the resin column. Makeup air flow rate is determined using a laminar flow element and pressure and temperature gauges associated therewith. The sample and the makeup air are drawn together through a blower and the flow rate through the blower is calculated based on differential pressure across the blower and temperature of the gas drawn through the blower. The controller adjusts a proportional control valve in the makeup air line to regulate the sample flow rate, taken as the blower flow rate minus the makeup air flow rate, at a predetermined proportion of the exhaust gas flow rate.

Abstract: An apparatus with a reduced dead volume associated with sampling, comprising: a sample container configured to store a fluid, a sample line configured to transport the fluid from a first sampling area to a second area in the sample container, at least one valve in the sample line, the valve configured to selectively range from a closed configuration to an open configuration, and a flow restrictor configuration placed in the sample line, the flow restrictor configured to minimize the dead volume for the sample container.

Abstract: A core holder comprises a plurality of fluid flow lines, a housing, a core sleeve disposed within the housing, an end cap coupled to a first end of the core sleeve and a first end of the housing, and an injector assembly disposed within the housing and coupled to a second end of the core sleeve. The injector assembly comprises a plurality of fluid passages coupled to the plurality of fluid flow lines, and a chamber in fluid communication with the plurality of fluid passages and an interior of the sleeve.

Abstract: An enhanced swipe sampler and method of making are described. The swipe sampler is made of a fabric containing selected glass, metal oxide, and/or oxide-coated glass or metal fibers. Fibers are modified with silane ligands that are directly attached to the surface of the fibers to functionalize the sampling surface of the fabric. The swipe sampler collects various target analytes including explosives and other threat agents on the surface of the sampler.

Abstract: A system for sharing recommended information is presented including a plurality of electronic devices, each having a fingerprint collecting module for collecting fingerprint information and a chemical analysis module for performing a chemical analysis of the fingerprint information to create a chemical profile for identifying at least a select number of molecules and/or organic compounds for deriving distinguishing characteristics from the fingerprint information.

Abstract: A shape-sensing segment traverses through at least a portion of a kinematic chain of a tele-operated slave surgical instrument in a tele-operated minimally-invasive surgical system. The shape-sensing segment includes a pre-set perturbation. Shape information from the pre-set perturbation allows determination of relative partial-pose information for at least one link in the kinematic chain.

Abstract: A pipe inspection system and method for accessing and inspecting a feeder tube extending from a larger header pipe at an angle are disclosed. A pipe inspection tool including a head piece and a delivery tube are positioned within the header pipe and aligned with the feeder tube using cameras or other alignment means. The head piece includes a jack that presses the head piece against the interior surface of the header pipe at the feeder tube to create a sufficient seal to deliver a PIG or another pipe inspection device to the feeder tube.

Abstract: Method for generating a force vector, comprising the steps of: providing at least a first mass and a second mass; making the first mass rotate around an axis of rotation; changing the distance between the first mass and the axis of rotation between two extreme positions while rotating the first mass; making the second mass move around an axis of rotation; changing the distance between the second mass and the axis of rotation between extreme positions while rotating the second mass; making the masses move in opposite direction with respect to each other; subjecting the masses to a deceleration phase and a subsequent acceleration phase while changing the direction of movement of said masses between the extreme positions; making each acceleration phase of said masses directly adjoin a subsequent decelerating phase.

Abstract: A drive unit for a motor vehicle having a guide element, a function unit guided by the guide element and which is movable via a motor, and a carrier guided by the guide element and coupled to the function unit. The carrier includes a coupling element movable relative to a main body of the carrier, so that to bring about an engaged state the coupling element is arranged in a first position inside a receptacle of the guide element to fix the carrier on the guide element, and to bring about a coupled state the carrier is arranged in a second position inside a recess of the function unit so that the carrier is moved together with the function unit. The carrier has a securing element that is movable relative to the main body and which, in a fixing position, prevents movement of the coupling element out of the first position.

Abstract: A liquid jetting apparatus includes: a liquid jetting head; a carriage which carries the liquid jetting head and moves in a scanning direction; a plurality of pulleys arranged on a first plane, each having an axis extending perpendicular to the first plane, and including at least a first pulley and a second pulley separated from the first pulley in the scanning direction; an endless belt put around the plurality of pulleys to make contact with a circumference of each of the first and second pulleys and connected to the carriage; a pulley holder having a fixing portion, holding a tension adjusting pulley which adjusts a tension applied to the belt, being movable along the first plane together with the tension adjusting pulley; two plates sandwiching the fixing portion of the pulley holder; and a fastening member which fixes the fixing portion to the two plates.

Abstract: A drive system for moving a support assembly is disclosed. The drive system includes a lead screw configured for connection to the support assembly and defining a longitudinal axis. The drive system further includes an epicyclic gear assembly. The epicyclic gear assembly includes a carrier and a plurality of rotatable gears. The epicyclic gear assembly is rotationally coupled to the lead screw. Operation of the epicyclic gear assembly causes translation of the support assembly along the longitudinal axis.

Abstract: The present invention provides a grease composition which contains a small amount (not more than 0.06 wt %) of molybdenum and yet is capable of achieving an excellent low friction property when mechanical parts in which the grease composition has been packed are operated under a severe sliding condition in which they are subjected to a high speed and a high contact pressure. The present invention also provides a bearing, a universal joint, and a linear motion device in which the grease composition of the present invention is packed. A grease composition (7) is packed inside a grease-packed bearing (1) in such a way that the grease composition (7) is applied to at least the circumference of each rolling element (4). The grease composition (7) contains base oil, a thickener, and an additive. The additive includes molybdenum dithiocarbamate and sodium dithiocarbamate. The content of the molybdenum for the whole weight of the grease composition (7) is set to not more than 0.06 wt %.

Abstract: An actuator unit (1) of a cam shifting system, which actuator unit is mountable on an internal combustion engine or a component thereof and has at least one actuator pin (5) for moving shifting cam units of the cam shifting system into different axial positions by means of at least one shift groove formed on the periphery of the shifting cam units and cooperating with the actuator pin (5). The actuator pins (5) are spring-loaded in a direction toward the shifting cam unit, operable by a solenoid unit, and slidably supported in a housing (2) of the actuator unit (1). The housing (2) of the actuator unit (1) is provided with at least one enlargement in each inner surface facing an actuator pin (5).

Abstract: A switchable gear in a handheld power tool has at least two gear stages which are to be engaged via an adjustable switching member, the switching member being in a latched position via a retaining element fixedly held against a housing in a first gear stage. Furthermore, a spindle for receiving a tool may be driven via an axially spring-loaded gear wheel, the gear wheel being axially supported on the retaining element on the side opposite the switching member.

Abstract: An arrangement for supporting an input gear of a transmission in a motor vehicle, in particular a ring gear, characterized in that a pot-shaped support element (1) is provided, whereby a drive gear to drive the input gear engages into a recess (2) of the support element (1), and, for purposes of bearing the input gear, the support element (1) extends at least partially underneath the input gear radially on the inside.

Abstract: An object is to provide a drive unit in which a sealing structure for the motor can be simplified, and such that oil dose not leak into a motor case. The inside of the motor case is configured to be so-called dry. Although wires extending from a stator penetrate the motor case and extend to the outside, no sealing measures are required in this penetrating portion. A seal in the penetrating portion may be a simple one such as a dust seal. In other words, the present invention provides a drive unit in which the sealing structure for the motor can be simplified.

Abstract: The bar-end electric actuation device of a bicycle gearshift, comprising a body suitable for being mounted at an end of handlebars facing forwards in the direction of travel (X) of the bicycle and a first and a second electric actuation member acting on respective electrical contacts which are mounted in the body and are suitable for controlling gearshifting, upwards and downwards respectively. The first and the second electric actuation member are faced by said body according to a respective facing direction, angularly spaced apart by an angle (?) that is between 60° and 130°. Moreover, the body is suitable for being positioned externally around the end of the handlebars, leaving free access to the inside of the end itself.

Abstract: A steering column assembly includes a bracket for securely fixing a steering lock mechanism to the shroud of the steering shaft. The lock mechanism includes a bolt that projects in a locked position to act upon the shaft to limit rotation. The bracket is secured to the shroud in such a way that it is free to move relative to the shroud against a spring force. This helps the lock resist an attack using a high impact force.

Abstract: A flexible transmission device is provided, which includes a guiding sheath housing a transmission cable. The device includes such a device comprises a rigid element which limits deformation of the sheath along a first direction perpendicular to the longitudinal axis of the sheath without preventing its deformation along a second direction that is essentially orthogonal to the first direction and to the longitudinal axis. The rigid element being fixedly attached to the sheath.

Abstract: An advanced steering wheel is disclosed, where most of the surface area of the invented steering wheel, with the exception of the outer wheel ring, does not need to rotate. In this way, the central part of the steering wheel can be used for various purposes, such as information displays, various devices (such as cell phones, GPS receiver), etc. as well as the air bag and horn pad. Unlike rotational spokes and the hub of a conventional steering wheel, the inventive steeling wheel uses a mechanical coupling device such as a gear system or a belt and pulley system. When a vehicle driver rotates the steering wheel ring, the rotational driving motion is transferred to the steering shaft spindle by the mechanical coupling devices, which are mounted under the steering wheel surface. The surface area of the steering wheel can be used for various utility consoles and accessories.

Abstract: A rotary/push operating device (10) for a man-machine interface, in particular for an operating unit of a vehicle, comprises a manually operable rotary/push element (12) which can be rotated about a rotational axis (15) and which can be pushed down in the direction of the rotational axis (15), and a rolling-body bearing (14) which defines the rotational axis (15) and which comprises a immobile bearing ring (18), a movable bearing ring (20), and a rolling-body cage (22) arranged between said bearing rings. The rotary/push element (12) is coupled to the movable bearing ring (20) in such a manner that the rotary/push element (12) will move together with the movable bearing ring (20) when, during rotation of the rotary/push element (12), the movable bearing ring (20) rotates or is axially moved in the direction of the rotational axis (15). The rolling-body cage (22) comprises a plurality of rolling bodies (24) arranged in at least one radial plane of the rolling-body cage (22).

Abstract: A method for producing a steering wheel for a vehicle is provided with the method including the following steps: providing a steering wheel rim, providing a first and a second blank, in particular made of leather, for producing a covering of the steering wheel rim which covering is visible after the steering wheel is completed; producing the covering by connecting a first edge section of the first blank to a first edge section of the second blank via a seam; and finally covering the steering wheel rim with the covering in such a manner that the seam, which connects the first and the second blank to each other, continues essentially along an inner circumference of the steering wheel rim and is visible from the outside in the completed steering wheel.

Abstract: A draw-pull bar is described which consists of at least one adapter with a metallic tubular end and of an inner and outer tubular body out of carbon-fibre-reinforced plastic (CFRP). it is characterized thus that the outer CFRP tubular body conically wraps the metallic end of the adapter from the outside in a form-fit manner while the inner CFRP tubular body is form-fit connected with the metallic ends of the adapter. An elastomeric layer is tapered in the contact area between the inner tubular body and the outer tubular body in such a way that both tubular bodies are separated on the one side, but are arranged against each other in a protected and damped manner on the other side.

Abstract: The application discloses a harmonic pin drive which comprises at least one outer ring gear with inner teeth that are adapted to the shape of pins of a pin ring, a transmitter for connecting to a rotor of an electric motor, a ball bearing that is supported on the transmitter and an arrangement of flexible means. The flexible means are distributed essentially on the circumference of a radius and the flexible means are provided for attachment to a casing. Furthermore, the flexible means comprise openings for inserting pins of the pin ring. Furthermore, an output shaft is provided for receiving a rotation of the outer ring gear.

Abstract: A first tubular shaft is placed on a radially outer side of a countershaft. A second tubular shaft is placed on a radially outer side of the first tubular shaft. A first driven gear is provided at one end portion of the first tubular shaft and is meshed with a first drive gear. A second driven gear is provided at one end portion of the second tubular shaft and is meshed with a second drive gear. A second secondary coupling portion is provided at the countershaft. A second primary coupling portion is provided at the other end portion of the first tubular shaft. The second primary coupling portion is engageable with the second secondary coupling portion. A third primary coupling portion is provided at the other end portion of the second tubular shaft. The third primary coupling portion is engageable with the second secondary coupling portion.

Abstract: The invention relates to a drive unit for a mixing drum that is disposed on a motor vehicle, in which an electric motor or a hydraulic drive comprising a displacement pump and a hydraulic motor can be used to drive the mixing drum. The low-power electric motor is used to drive the mixing drum at low rotational speed during the transport journey of the mixed concrete to the building site, while the hydraulic drive drives the mixing drum at high rotational speed during loading, mixing and discharging.

Abstract: The engine starting device includes a starter motor, a pinion portion, a pushing mechanism for pushing a pinion gear of the pinion portion to a position at which the pinion gear comes into meshing engagement with a ring gear, and an integrated switch for operating a motor-energization switch to pull a plunger after the pinion gear is pushed, by configuring a switch for actuating the pushing mechanism and turning ON/OFF an energization current to the starter motor by a single plunger coil. When a restart request is issued after an engine stop is requested and therefore the integrated switch is placed in an ON state, operation timing of the pushing mechanism and coil-operation timing of the plunger coil are set so that the starter motor avoids operating until the pinion gear comes into contact or meshing engagement with the ring gear.

Abstract: Since a pinion gear unit which rotates according to the rotation of an output rotation shaft driven by the motor unit, a pushing mechanism which moves the pinion gear unit towards an engagement location of the pinion gear and an engine starting gear, and a bracket which includes a bracket main body unit which supports the motor unit and the pushing mechanism and a nose unit which extends from the bracket main body unit to a side opposite to the motor unit and rotatably bears a tip portion of the output rotation shaft on a side opposite to the motor unit, and which is attached to an engine side are included, a first stopper unit which restricts the movement of the rotation member to the direction of the engine starting gear is provided on the output rotation shaft, a second stopper unit which restricts the movement of the pinion gears to the direction of the engine starting gear by pushing and biasing of the elastic member is provided on the rotation member, and positioning the first stopper unit is positioned

Abstract: A tool trolley for an electrolysis multifunctional machine set comprises: a frame (1); a hopper (2) fixed to the frame; a tool rotarytable (3) disposed at the lower portion of the hopper and rotatable around the hopper; an operating cab (4) disposed below the center of the tool rotarytable; a crust breaking tool (5), an anode replacing tool (6), a grab bucket tool (7) for cleaning anode pit and a feeding tool (8) of the tool rotarytable flexibly connected to the tool rotarytable disposed around the operating cab; a rotation drive mechanism (13) disposed between the hopper and the tool rotarytable. The tools are radially configured around the operating cab which is rotatable within ±190 degrees or stationary, and meanwhile, the operating console in the operating cab may also be rotated ±90 degrees. Therefore, it is convenient for operation, and the operator is provided with a wider view. The tool trolley is simple in structure, and can be installed and maintained in an easier and quicker manner.

Abstract: A method of using scrap rubber and other scrap materials, such as tires or parts or pieces of tires, to manufacture or melt steel and other metals in a furnace is disclosed. The scrap rubber may be used as a carbon source for the manufacture of steel and other metals, and may be used as an energy source to melt the scrap metal used to make the steel and other metals. The net benefit of this method includes reducing the amount of scrap rubber, such as tires, to be sent to a waste disposal facility or landfill, thereby improving the environment. In addition, by increasing the use of scrap rubber as a source of energy for steel or metal production, less energy is required from other sources.

Abstract: A physical process for recovering iron from magnetic cementitious spherical particles generated from metallurgical by-products such as slag from a basic oxygen converter (B.O.F.S) by applying a thermal process assisted by Ar—He plasma, which allows the microstructural and morphological transformation of these compounds based on iron, resulting in the generation of magnetic phases, among others. The separation process is based on the classification of the particles according to their new magnetic properties. Thus, when applying a magnetic field, the particles are separated into two fractions: a highly magnetic one and with low cementitious properties, and another fraction with high cementitious properties and almost no magnetic properties. The highly magnetic fraction is mixed with an aqueous medium to form an agglomerate and facilitate its transportation to be reefed to an iron melting process.

Abstract: Various embodiments provide methods of forming zero valent metal particles using an aerosol-reductive/expansion synthesis (A-RES) process. In one embodiment, an aerosol stream including metal precursor compound(s) and chemical agent(s) that produces reducing gases upon thermal decomposition can be introduced into a heated inert atmosphere of a RES reactor to form zero valent metal particles corresponding to metals used for the metal precursor cot pound(s).

Abstract: A two stage ironmaking process is disclosed. A first stage includes solid state reduction of iron ore and producing a partially-reduced iron-containing feed material and an off-gas containing CO2 at a location that is in close proximity to a site for sequestering CO2. A second stage includes transporting the feed material to an ironmaking facility iron at another location and producing iron from the feed material.

Abstract: The present invention relates to a method of concentrating and recovering precious metals from waste mobile phone PCBs and spent automotive catalysts using waste nonferrous slag, in which precious metals such as gold, silver, platinum, palladium or rhodium can be concentrated and recovered by simultaneously treating different industrial wastes, including waste nonferrous slag, waste mobile phone PCBs and spent automotive catalysts, and industrial waste can be recycled as resources. According to the present invention, it is possible to maximize the utilization ratio of precious metal resources that totally depend on the import in terms of the domestic situation of a poor-natural resources country. In addition, the industrial waste can widely be utilized for the recovery of precious metals in the fields of household appliance recycling and electronic part manufacture, and the recycling of industrial by-products discharged in the field of non-ferrous refinery.

Abstract: Various embodiments provide new methods of rhenium recovery. The methods can include subjecting a metal-bearing solution to an activated carbon bed, and adsorbing rhenium onto the activated carbon. The methods can also include heating a basic aqueous elution solution and eluting the rhenium from the activated carbon with the heated elution solution.

Abstract: This invention relates to the field of oil refining and, in particular, to a delayed coking process that produces coke with a volatile substances content of 15-25% for use as a coking additive in a coal coking charge in the production of metallurgical coke. The invention is directed towards increasing the content of volatile substances in coke and increasing the efficiency of a plant. The method comprises preheating a primary raw material, mixing the latter with recycle in a tank in order to form a secondary raw material, heating the secondary raw material to 455-470° C. and supplying the latter to a coking chamber, and coking to form a coking additive. It is expedient to feed an antifoaming additive into the coking chamber 3-5 hours before coking is finished. It is preferable to feed in the antifoaming addition agent at two-four points around the perimeter of the coking chamber.

Abstract: A cutting member for a shaving razor includes an elongated blade portion that tapers to a cutting edge, an elongated base portion that is integral with the blade portion, and a bent portion, intermediate the blade portion and the base portion. In some implementations, at least part of the cutting member has a thickness of at least about 0.005 inch (0.127 millimeter).

Abstract: A fastener installation tool and related method are provided for installing fasteners in boards. The tool can include a feed mechanism that automatically and sequentially feeds collated fasteners to a nose assembly. The nose assembly can include a guide having an alignment projection extending downwardly from the guide, and configured to engage a board corner and/or side surface, so as to align an angled bore through which fasteners are guided with the board corner and or side surface. The nose assembly can include a magnetic element located adjacent a path on which the collated fasteners are advanced. The magnetic element can exert a magnetic force on an individual fastener, aligning it for precise entry into the angled bore. The nose assembly can include a guide pocket to positively constrain a fastener as it rotates to ensure a desired advancement trajectory. A related method of installation is provided.

Abstract: This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired.

Abstract: A fastener installation tool and related method are provided for installing fasteners in boards. The tool can include a feed mechanism that automatically and sequentially feeds collated fasteners to a nose assembly. The nose assembly can include a guide having an alignment projection extending downwardly from the guide, and configured to engage a board corner and/or side surface, so as to align an angled bore through which fasteners are guided with the board corner and or side surface. The nose assembly can include a magnetic element located adjacent a path on which the collated fasteners are advanced. The magnetic element can exert a magnetic force on an individual fastener, aligning it for precise entry into the angled bore. The nose assembly can include a guide pocket to positively constrain a fastener as it rotates to ensure a desired advancement trajectory. A related method of installation is provided.

Abstract: A ratchet wrench is provided comprising a wrench handle with a head. A ratchet member has a plurality of ratchet teeth and is seated in the head for rotation about an axis. A pawl disposed within the head is adapted to pivot relative to the ratchet member. The pawl is provided with first and second pluralities of pawl teeth disposed for movement into and out of engagement with the ratchet teeth. A selector mechanism selectively pivots the pawl to move a selected one of the first and second pluralities of pawl teeth into engagement with the ratchet teeth. In one example, the selector mechanism can selectively permit the ratchet member to perform at least three functions.

Abstract: A ratchet wrench mainly includes a main body installed with a driving gear and a driven gear respectively having teeth formed spirally and engaged with each other. A confining chamber in the main body has an inner wall formed with ratchet teeth able to restrictively lock with ratchet teeth formed on the teeth of the driven gear. An interactive member is installed in an insert hole of the driven gear, with one end connected with the orientating member and another end positioned on the cover. A pressing piece is fixed on the interactive member, confined in the insert hole of the driven gear. A spring is located between the pressing piece and the driven gear. By switching the orientating member, the driving gear can easily change rotating direction, with a strong locking effect.

Abstract: A tool for torquing a regulator onto a cylinder of a portable cylinder assembly. The tool includes a nut and a socket. The nut is configured to fit around a body of a regulator of a portable cylinder assembly. As such, the nut has a first set of grooves that avoids one or more valve assemblies on the body of the regulator. The socket has a cavity extending therethrough such that the cavity consists of three sections: a top section, a middle section and a bottom section. The top section of the socket is configured to be coupled to a device that applies a torque force on the socket. The middle section of the socket is configured to avoid a case of the regulator which is disposed above the body of the regulator. The bottom section of the socket is configured to be coupled to the nut.

Abstract: The present invention discloses a universal anti-torque screwdriver head structure integrally formed and divided into a polygonal insert end and a conical action end, and comprising a plurality of pull-push wings disposed around the action end, a stepped recessed formed between two adjacent pull-push wings and extended inwardly from an open end, and the recess having a longitudinal depth slightly greater than an action hole of a screw of a general specification, and the design of the stepped recess provides high-strength torque and tenacity and fits screws of various different specifications.

Abstract: A star-type wrench includes a shank, a first operation portion mounted on a first end of the shank, and a second operation portion mounted on a second end of the shank. The shank is formed integrally to have a star-shaped outer diameter. Thus, the shank has a star-shaped outer diameter so that when the first operation portion or the second operation portion is broken, the first operation portion or the second operation portion can be removed from the shank, and the shank can function as an auxiliary operation portion and can be reused and operated successively.

Abstract: A torque limiting driver with a belt driven use indicator, having a body with a shaft and tool at one end and a counter or indicator at the other end, is disclosed. The indicator is driven by a drive shaft and belt corresponding to movement of the tool. The indicator provides at least one visual cue which corresponds to a predetermined amount of use, or end of life. Alignment of the at least one visual cue with a sight or mark may be used to estimate or determine usage.

Abstract: A torque limiting driver with a toothed belt driven use indicator, having a body with a shaft and tool at one end and a counter or indicator at the other end, is disclosed. The indicator is driven by a drive shaft gear and a toothed belt corresponding to movement of the tool. The indicator provides at least one visual cue which corresponds to a predetermined amount of use. Alignment of the at least one visual cue with a sight or mark may be used to estimate or determine usage.