Abstract: A work holding device includes a substantially C-shaped first frame that includes a first end and a second end and is rotatable about a first center axis that is located therebetween, and a substantially C-shaped second frame that includes a third end located between the first end and the first center axis and a fourth end located between the second end and the first center axis, the second frame being rotatable about a second center axis that passes the third end and the second end and is perpendicular or substantially perpendicular to the first center axis. A groove into which an edge of a work is insertable is provided in the second frame.

Abstract: A power tool comprising: a body (103); a dust catching attachment (120) attachable to the body (103); an engagement mechanism portion (151) which engages the body (103) with the dust catching attachment (120); and a spacing member that biases the body (103) and the dust catching attachment (120) in a state that the body (103) and the dust catching attachment (120) are engaged to each other by the engagement mechanism portion (151).

Abstract: The invention relates to waste material removal devices and related assemblies and methods. In certain aspects of the invention, a machining tool has a waste material removal device, which comprises a suction slide for carrying out a movement in a translational direction (x). The suction slide includes a suction arm support and a suction arm, and the suction arm is fastened pivotably on the suction arm support. In certain aspects of the invention, a waste material removal device has a suction arm having a suction opening and a separating device for separating solid waste material parts according to their weight arranged at the suction opening. The suction opening is oriented at an angle between 10° and 170° to a longitudinal axis of the suction arm.

Abstract: A power tool enabled to detect an inadvertent rotation at higher accuracy includes a first sensor that detects a first driving information corresponding to a kinetic movement state of the tool body when the tool body is rotated around a longitudinal axis of the tool bit in the event of a working operation of the power tool, a second sensor that detects a second driving information corresponding to an output torque of the tool bit driven by the motor, and a controller connected to the first sensor and the second sensor for controlling the power tool. The controller is configured to calculate holding information corresponding to a holding force of a user to hold the tool body based on the first driving information and the second driving information and control the driving of the power tool based on the holding information.

Abstract: A device for orientating a sensor probe relative to the local normal vector of a work surface, the device comprising: a frame, a moving support element linked to the frame and able to slide in a predetermined direction, a sensor probe able to pivot on an axis of rotation not parallel to the predetermined direction relative to a point of articulation of the support element, pressure means able to move and generate a force on the moving support element in predetermined direction so as to press the sensor probe against the work surface, in which the sensor probe comprising a single convex external sensing surface suitable for being placed in contact with the work surface, the sensing surface having a single equilibrium contact point, the equilibrium contact point being the point on the sensing surface closest to the point of articulation.

Abstract: A surfacing apparatus supported adjacent a substantially vertical surface of a structure for applying an even and uniform texture to the surface of the structure using a selectively adjustable force exerted on a texturing means to engage the surface of the structure. The surfacing apparatus is suited for horizontal and vertical movement in controlled prescribed paths under controlled and prescribed pressure from the adjustable tensioning means.

Abstract: The rotation support bar (2) of a grinding tool (1) has a bendable hinge section (4) at the intermediate section thereof, and has a balancer (5) on the grinding stone tip (3) side. The hinge section (4) comprises two or more opposed pairs of grooves (4a) which have circular arc-shaped bottom surfaces and which are provided in the outer peripheral surface of the rotation support bar (2) so as to extend in the direction perpendicular to the axial direction of the rotation support bar (2). The grooves (4a) are provided at equal angular intervals.

Abstract: A sanding system may include a leading roller assembly having a first measuring device that is configured to measure a first thickness of a component at a location proximate the leading roller assembly. A trailing roller assembly may include a second measuring device that is configured to measure a second thickness of the component at a location proximate the trailing roller assembly. A sander disposed between the leading and trailing roller assemblies is configured to sand a portion of the component. A control unit is coupled to the leading roller assembly, the trailing roller assembly, and the sander. The control unit may be configured to drive the sanding system in relation to the component and operate the sander based on analysis of the first thickness measured by the first measuring device and the second thickness measured by the second measuring device.

Abstract: To provide a scribing method by blasting that allows forming a groove at high accuracy without masking, a blasting machine that includes an ejection nozzle having a slit-shaped ejection opening with a width of 10 to 500 ?m and a length of 5 to 5000 times the width, and an abrasive with a median diameter equal to or less than one-half of a width of the ejection opening of the ejection nozzle and with a maximum particle diameter smaller than a width of the ejection opening are used; and the abrasive is ejected together with compressed gas on a surface of a workpiece at an ejection distance of 0.1 to 3.0 mm and an ejection pressure of 0.2 MPa to 0.6 MPa without masking so that 0.25 cm3 or less of the abrasive is included per 1000 cm3 of the compressed gas discharged from the ejection nozzle.

Abstract: A containment system the operator to contain, see, blast, and reclaim the grit or abrasives used to strip external surfaces of a pipe, rod, or substantially cylindrical object. The containment chamber or housing is constructed of sections that can be quickly assembled to encapsulate such objects. The grit reclamation or recovery system of the invention is operable to be used in connection with objects that are positioned in a vertical, horizontal, or angled orientation. The containment housing is assembled from sections to encapsulate pipe to contain the dust and grit while blasting. The containment housing has inflatable seals that seal and grip around the pipe. Nozzle control and access as well as vision access are provided to allow the operator to control where the pipe will be blasted and the intensity of the blast. The containment system has a centrifugal grit reclamation design that will work in vertical, horizontal and angular orientation.

Abstract: Provided is a balancing device for a rotating body defining a rotation axis and including a plurality of balancing heads aligned along the rotation axis, each balancing head including, balancing masses configured to be moved at least along a movement circumference to cancel out the unbalance of the rotating body; at least one motor configured to move said balancing masses independently of each other, the balancing masses belonging to different balancing heads being reciprocally distanced along the rotation axis; and unbalance detectors including a plurality of vibration detectors configured to measure the vibrations caused by the unbalances of the rotating body.

Abstract: A rotatable handle for a wrench includes a fixation rod, a first handle body, and a second handle body. An end of the first handle body is rotatably and axially movably sleeved onto to an end of the fixation rod, and the other end of the first handle body is adapted for being fixed with a wrench head. An end of the second handle body is rotatably and axially movably sleeved onto the other end of the fixation rod, and the other end of the second handle body is adapted for being fixed with another wrench head. Therefore, the relative angle between the two wrench heads can be adjusted appropriately by the relative rotation of the first handle body and the second handle body.

Abstract: A method for rotating a rotatable part using a hydraulic piston-cylinder drive operated by a hydraulic pressure source and having at least one piston and a ratchet, wherein a torque is applied to the rotatable part during a loading stroke and the piston is moved into a starting position via a return stroke. The loading stroke ends when an end position of the piston is reached and subsequently the return stroke is started, wherein the end position is a position of the piston before the piston abuts against an end stop.

Abstract: A cam shaft is disclosed having an asymmetric chamfer for guiding a ball bearing deeper into a cam shaft groove to avoid ball loss when an immediate deceleration force is applied. The chamfer spaces the ball from an opening in the front face of a hammer that moves axially relative to the cam shaft when a tool having the cam shaft and hammer is dropped. The ball is therefore less likely to escape through the front opening of the hammer when the impact wrench is dropped.

Abstract: A tool bit holder assembly includes a shank receivable in a tool holder of a rotary tool, and a body defining a socket that removably receives a tool bit. An annular recess, defined in an exterior surface of the body, has a front and rear shoulders and an axial length. A floating sleeve with a ring magnet at its front end is slidably received over the body with an elastic retainer movably received in the annular recess. The elastic retainer has an axial length less than the axial length of the annular recess to enable the sleeve to float axially between a rear position where the retainer abuts the rear shoulder and a front position where the retainer abuts the front shoulder. The sleeve is axially moveable rearward from the rear position to a parked position where the elastic retainer engages the body rearward of the rear shoulder.

Abstract: A torque wrench for use in driving fasteners is provided. The wrench includes an electronics unit disposed within a body of the wrench that is capable of sensing and measuring the torque applied to a fastener by the wrench and providing an output of the level of torque to the user. The electronics unit is also disposed within a barrier in the body that isolates the unit from the exterior environment around the wrench. The data sensed by the electronics unit can be utilized to provide feedback to the user regarding the operation of the wrench, and to monitor the overall operation of the wrench for calibration purposes, among other functions. During use, the wrench can provide the user with visual, audible and tactile feedback regarding the operation of the device relative to stored maximum torque values stored in the electronics unit.

Abstract: A torque wrench with double drive ends includes a handle having at least two hollow tubular bodies coaxially connected with each other, two drive heads respectively disposed at two ends of the handle, and a double torque adjustment mechanism including at least one adjustment member, two slide blocks and two elastic members. The two slide blocks are movable within the two tubular bodies. The adjustment member is positioned between the two slide blocks for driving the two slide blocks. The two elastic members are respectively positioned between the two slide blocks and the tubular bodies. By means of the adjustment member, the elastic force applied by the elastic members to the drive heads the can be adjusted to set the torque values thereof.

Abstract: Embodiments described herein are configured to release and remove window belt molding.

Abstract: A pin puller is revealed. The pin puller includes a cylinder mounted with an actuating rod therein. A front end of the actuating rod is connected to and fixed on a pin connection unit. The pin connection unit is fitted over and connected to one end part of a positioning pin while a binding sleeve is disposed around the pin connection unit. The other end part of the positioning pin is mounted and connected to a fixing unit for pin-disassembling or a fixing unit for pin-assembling for driving the cylinder to move the actuating rod. The positioning pin is further pulled to be disassembled or assembled by the pin connection unit. Thereby the pin puller has simpler structure. Thus the manufacturing cost is lowered and the pin puller is having simpler structure and more convenient in operation and use.

Abstract: The present disclosure provides an apparatus having a base with at least one guide formed along a length thereof. A fitting clamp and a tube clamp are coupled to the base and spaced apart from one another. A drive mechanism is operable for moving at least one clamp relative to the other clamp along the guide of the base so as to slidingly assemble a tube and fitting together.

Abstract: The present invention relates to a device for providing access to a space, wherein the space is provided with an access element, such as for instance a door or window, wherein the device is provided with pressing elements for exerting an impact force on one or more parts of the access element, such as for instance a door frame, comprising: an elongate housing, an elongate impact element for exerting the impact force on the access element which is adjustably movable between a starting position and an end position by a first drive, the first drive adapted to produce the impact force, the impact element is comprised in a first guide extending along the impact element, the impact element is provided from close to the first outer end up to at least an exit opening with a narrowed portion, the first drive comprises a first fluid reservoir provided with a first fluid suitable for high-pressure application, wherein in the starting position of the impact element the first fluid is arranged compressed in the first f

Abstract: A driving tool is provided with a driver for driving out a fastener from a nozzle, a balancer, and a balancer biasing member for biasing the balancer in a direction away from the nozzle. The balancer moves in the direction away from the nozzle by a biasing force of the balancer biasing member when the driver moves toward the nozzle.

Abstract: An override mechanism for a nailer includes a nose unit, a magazine, a safety bar, a lever, a pivotal plate and a restriction member. The safety bar has one side slidably engaged with the guide slot of the nose unit. The lever has an extension and a pressing portion on two ends thereof. The pivotal plate has a base portion and an operation end, and the pivotal plate is pivotable relative to the extension of the lever. The operation end extends through the magazine and enters one of the grooves in the magazine. The operation end is located on the movement track of the side plate of the push plate. The restriction member is movably located in the longitudinal hole of the base. The user is acknowledged when a pre-set number of nails is remained in the magazine by restricting movement of the safety bar.

Abstract: A claw hammer includes a handle having a handle head, a claw pivotally mounted at the handle head of the handle, and a hammer head mounted at the handle head and movable relative to the handle head between a locking position where the hammer head and the claw are engaged together to lock the claw to the handle head and an unlocking position where the hammer head and the claw are disengaged from each other for allowing the claw to be rotatable relative to the handle head to the desired operating angle.

Abstract: A technique for improving the vibration-proof effect and usability of a handle is provided in an impact tool. An impact tool is provided which linearly drives a tool bit in an axial direction thereof to cause the tool bit to perform a predetermined hammering operation. The impact tool includes a motor, a striking mechanism part, that is driven by the motor and causes the tool bit to linearly move, a tool body that houses the motor and the striking mechanism part, an outer shell housing that covers at least part of the tool body and is connected to the tool body via a vibration-proofing first elastic element so as to be movable in a direction transverse to the axial direction of the tool bit with respect to the tool body, and a handle which is designed to be held by a user and connected to an opposite side of the outer shell housing from the tool bit via a vibration-proofing second elastic element so as to be movable in the axial direction of the tool bit with respect to the outer shell housing.

Abstract: An electric handheld sanding tool with improved cooling efficiency includes a host body and a sanding assembly. The sanding assembly is installed in the host body and includes an electric motor, a circuit module and a sanding element. The circuit module and the electric motor are interposed by a cooling fan which is synchronously moved with the electric motor. The host body has at least one air outlet corresponding to the cooling fan and at least one air inlet corresponding to either of the circuit module and the electric motor such that when the electric motor is driven by the circuit module and drives synchronously the sanding element and the cooling fan, the spinning cooling fan draws cold airflow through the air inlet to pass through an airflow orifice and dispel operation heat generated by the electric motor and the circuit module through the air outlet.

Abstract: A power tool includes a housing including: a body part having a substantially cylindrical shape and extends in a front-rear direction; and a handle part connected to the body part. The body part includes: a driving source; a power transmission mechanism part configured to transmit a driving force of the driving source; and a tip tool holding part to which the driving force of the driving source is transmitted from the power transmission mechanism part. The handle part includes a switch. A top part protruding from a surface of the handle part is formed on a side surface of the handle part along a longitudinal direction of the handle part. At least a portion of the top part is arranged at a position deviating rearwards from a center of the handle part in the front-rear direction.

Abstract: A sawhorse trestle has a discontinuous work-surface which is adjustable so as to provide a variable aperture between respective parts (2, 12) of the work-surface. Thus, the trestle may include two half-trestles (10, 20), each including two hinged frames (1, 11) topped by a horizontal support member (2, 12) providing part of the work-surface, those half trestles (10, 20) being connected by an adjustable, such as slideable, connector (3).

Abstract: The present invention includes an open-top sheath case for receiving a chainsaw blade and a planar sheath cover detachably secured to the sheath case to cover the open-top of the sheath case. The sheath cover includes an inwardly extending “L” shaped lip along the longitudinal edges of the sheath cover. An open-top tool kit box includes a floor, a pair of side walls and a front and rear end walls extending upwardly from the floor. The tool kit box further includes an outwardly extending lip provided on the upper edges of the sidewalls and the front end wall. The outwardly extending lip of the tool box kit is sized to be slidably received by the inwardly extending lip of the sheath cover.

Abstract: A tool handle includes a cavity to receive a T-handle tool. When the tool handle is placed on the T-handle tool, the tool handle provides a better grip of the tool handle to apply greater torque. The tool handle includes a protrusion which is able to detachably couple with the T-handle tool. Once coupled with the T-handle tool, the tool handle is able to be grasped by a user to rapidly turn the T-handle tool. In some embodiments, the T-handle tool includes an added tool. A tool container is able to store T-handle tools and the tool handle. The tool container includes a locking mechanism to lock the tools in place and a tamper prevention mechanism to ensure the locking mechanism is not tampered with while the tool container is in the store.

Abstract: One bicycle service kit includes: a main body; at least one slot formed at an upper end of the main body; and at least one cable positioned in the slot, the cable including a head portion held within an interior of the main body, the head portion having a dimension larger than a width of the slot, the cable including a free end configured to be attached to a bicycle tool. Another kit includes: a circular main body defining an open interior; a shelf formed in the open interior of the main body, the shelf defining a plurality of slots; at least one cable positioned in at least one of the slots, the cable including a free end configured to be attached to a bicycle tool; and a front cover coupled to close the open interior of the main body.

Abstract: An articulate probe device includes a first mechanism, a second mechanism, and an overtube mechanism. The first mechanism includes a proximal link which is movable coupled to a first intermediate link, a plurality of intermediate links, and a distal link which is moveably coupled to a second one of the intermediate links. The second mechanism includes a proximal link which is movable coupled to a first intermediate link, a plurality of intermediate links, and a distal link which is moveably coupled to a second one of the intermediate links. The overtube mechanism includes a proximal link which is movable coupled to a first intermediate link, a plurality of intermediate links, and a proximal link which is moveably coupled to a second one of the intermediate links. Further, at least one of the first mechanism, second mechanism, and overtube mechanism is steerable and extendable beyond the other mechanisms.

Abstract: An industrial robot includes a parallel kinematics mechanism that provides three degrees of freedom to a ring structure while maintaining the ring structure substantially in a fixed orientation relative to a reference plane established by a stationary base plate. A pivot sleeve is suspended within the stationary base plate and may pivot on two perpendicular axes of an intermediate gimbal. An elongate boom is mounted within the pivot sleeve and extends from an upper end through the pivot sleeve to a lower end. An end effector is mounted at the lower end of the elongate boom and is arranged for carrying a work element. Gimbal rings are located at the upper and lower ends of the elongate boom and are interconnected by a control linkage to maintain the end effector substantially parallel to the ring structure during movement of the end effector through a three-dimensional work envelope.

Abstract: A self-propelled cleaner (1), i.e., a self-propelled electronic device, includes a temperature measurement unit (63) that measures an ambient temperature during self-propelled operation, a temperature decision unit (521) that decides whether the measured ambient temperature is equal to or more than a set value, and an abnormal temperature notification unit (522) that externally reports abnormal temperature information indicating that the measured ambient temperature is equal to or more than the set value if the measured ambient temperature is decided to be equal to or more than the set value.

Abstract: Proposed is a method of teaching an industrial robotic station with elimination of errors of assembling and installation as well as errors accumulated during operation for a predetermined operation time or a number of operation cycles. The method consists of providing a robotic station with a coordinate system fixed relative to the frame and all other stationary components including at least two reference objects, one of which is a tactile sensor and another is a hard body such as a hard spherical ball. A position of the center of the hard precision in the fixed coordinate system of the robotic station is determined via contact with a changeable tactile sensor attached to the coupling of the robot arm and is assumed as center of coordinates of an operative coordinate system which is then used for moving the robot arm to working positions memorized in a CPU and in accordance with a memorized sequence.

Abstract: A robot control device comprises a mass parameter setting unit which sets a mass parameter, and a stop command unit which sends a stop command of a robot. A first upper limit value regarding external force and a second upper limit value smaller than the first upper limit value have been set. The stop command unit stops the robot when estimated external force exceeds the first upper limit value. Furthermore, the stop command unit makes the robot to be in a stop state when an average value of the external force exceeds the second upper limit value.

Abstract: A system for performing remote welding operations on an apparatus is disclosed. The system may generally include a welding chamber configured to house the apparatus and a robotic welder positioned within the welding chamber. The robotic welder may be configured to perform an actual welding operation on the apparatus. In addition, the system may include a welding simulation device positioned outside the welding chamber and a controller communicatively coupled to the robotic welder and the welding simulation device. The welding simulation device may be configured to perform a simulated welding operation corresponding to the actual welding operation. The controller may be configured to track the movement of the welding simulation device and control the operation of the robotic welder based on the movements of the welding simulation device.

Abstract: In an elastic-deformation-compensation control device (10), a first dynamic characteristic calculation unit (300) performs filtering processing with respect to a motor-angle command value (?mc) outputted from a motor-angle-command-value calculation unit (600), and outputs a processed motor-angle target value (?md). A second dynamic characteristic calculation unit (400) is provided with a high-frequency cutoff characteristic having a cutoff frequency which is lower than that of the first dynamic characteristic calculation unit (300), performs filtering processing with respect to the output from an axial force torque calculation unit (200), and outputs a processed axial force torque compensation value (fd).

Abstract: Examples are provided that describe calibration of a sensor of a robotic device. In one example, a system includes least one processor and data storage comprising instructions executable by the at least one processor to cause the system to perform operations. The operations include simulating a movement of a robotic component of a robotic device to a plurality of positions. The operations may also include determining a relationship between a simulated torque values and simulated force values at the plurality of positions. The operations may also include determining expected torque values based on detected force values and the determined relationship. Based on the expected torque values satisfying a threshold associated with the simulated torque values, determining a plurality of calibration parameters of the one or more sensors according to the optimization.

Abstract: A joint driving unit driving a joint of a robot arm includes a motor, a speed reducer transmitting rotation of the motor in a variable speed, an input side encoder detecting a rotation angle of a rotation shaft of the motor, and an output side encoder detecting a rotation angle of an output shaft of the speed reducer. When positioning the end effector at a working start position at which predetermined work is started, operation of the robot is set to an output based control mode in which an angle of a joint is feedback controlled based on an angle detection value from the output side encoder. When the robot performs the predetermined work, the operation of the robot is changed to an input based control mode in which the angle of the joint is feedback controlled based on an angle detection value from the input side encoder.

Abstract: A lower robotic arm includes a base structure, a plurality of digits, and a plurality of tendons. The digits each include first, second, third, and fourth phalanges. Each digit is operatively attached to the base structure at the respective first phalange. A first joint operatively connects the first and second phalange to define a first axis, a second operatively connects the second and third phalange to define a second axis, and a third joint operatively connects the third and fourth phalange to define a third axis, such that the phalanges are selectively rotatable relative to the adjacent phalange, about the respective axis. The tendons are operatively connected to a respective one of the fourth phalanges. Each tendon selectively applies a first torque to the respective fourth phalange to urge the respective phalanges to rotate in a first direction about the respective axes.

Abstract: A gripper section for use with a clamp arm for use with automated machinery. The gripper section includes a plurality of beam members which extend from a base, with each beam member of the plurality of beam members having a fixed end and a free end. The gripper section also includes a plurality of gripper surfaces proximate to the free ends, with each gripper surface attached to a respective beam member of the plurality of beam member. Each gripper surface of the plurality of gripper surfaces and its respective beam member move independently of the other plurality of gripper surfaces and plurality of beam members. Wherein the plurality of gripper surfaces and the plurality of beam members conform to the shape of an object/part to be manipulated by the gripper section.

Abstract: Examples for precision assembly of robotic components are described herein. A robotic manipulator may require the assembly and disassembly of its components. To enable efficient assembly of the robotic manipulator, an example assembly may include connection links between robotic components that enable functional and precise assembly. In one embodiment, an example assembly may include connection links having various structural features positioned incrementally at respective positions proximal to outside edges of the connection links for securing the connection links together in a fixed, immovable geometric configuration. In some instances, the connection links may further include electrical components or slots for electrical components of components for establishing electrical connections between the connection links within the assembly. Further, an example assembly may include a clamping component for providing axial force to secure the connection links in the precise configuration.

Abstract: A tip end part of a main arm member of a Scott Russell mechanism is enabled to be brought close to a base end part of a sub arm member. A Scott Russell mechanism device is formed into a boomerang-like shape such that a main arm member coupled to a sub arm member is curved to detour a coupling position. Thus, when the coupling angle is changed so that a base end part of the main arm member and a base end part of the sub arm member are most separated from each other, a tip end part of the main arm member can be moved close to right beside the base end part of the sub arm member. With the Scott Russell mechanism device, a moving range of the tip end side of the main arm member can be enlarged.

Abstract: A joint unit pivotably coupled to a tip end part of a main arm member of a Scott Russell mechanism is pivoted in two ways. A Scott Russell mechanism device pivotably couples a main arm member and a sub arm member to each other, as well as it pivotably couples a joint unit to a tip end part of the main arm member. Moreover, by providing a pivot driving unit to the main arm member, as well as providing a fourth motor and a drive transmission mechanism unit to the sub arm member, the Scott Russell mechanism device can switch between pivoting the joint unit associatively a change of a coupling angle of the arm members and pivoting the joint unit by the drive of the fourth motor.

Abstract: A robot for handling loads, comprising an end effector, three actuators, each with a single degree of freedom, three arms, each of them pivotably connected to an actuator and on the other side pivotably connected to the end effector, a frame carrying the actuators; and a control unit connected to the actuators. Also, an assembly of plural of these robots.

Abstract: A robot includes a body and a bumper. The body is movable relative to a surface and includes a first portion of a sensor. The bumper is mounted on the body and movable relative to the body and includes a backing and a second portion of the sensor. The backing is movable relative to the body in response to a force applied to the bumper. The second portion of the sensor is attached to the backing and movable with the backing relative to the first portion of the sensor in response to a force applied to the bumper. The sensor is configured to output an electrical signal in response to a movement of the backing. The electrical signal is proportional to an amount of displacement of the second portion relative to the first portion.

Abstract: A folding knife has dual operational mode. In a first modality, the knife is opened and closed manually. In a second modality, the knife is fully automatic. The user is able to switch between modalities with manipulation of a slider bar in the space between handle halves. The user is able to switch from the automatic mode into the manual mode, and vice versa, only when the blade is in the open position. A torsion spring around the pivot shaft connects the blade to the handle. The spring drives the blade open in the automatic operational mode and a switch mechanism is used to alternately engage and disengaged the spring from the blade. One end of the spring is fixed to the handle and the other end interacts with a groove in the tang of the blade when the switch mechanism is in the automatic position. A spacer bar that is part of the switch mechanism has a surface that is operable to laterally displace the spring relative to the blade groove when the switch is in the manual position.

Abstract: A safety razor for personal grooming is disclosed. The safety razor includes a handle, a cap, and a base plate that has blade-engaging surfaces that define the razor blade angle when clamped between the cap and the base plate. The base plate can be double-sided to provide a second angled blade-engaging surface that defines a second razor blade angle when the razor blade is clamped between the second side of the base plate and the cap. The modular base plate allows a shaver to replace or flip, in the case of double-sided base plates, the base plate in order to change the blade angle and the aggressiveness of the shave from the safety razor.

Abstract: The present invention discloses a one-step groove forming device and method for oblique crossing of reducing pipe fittings. The forming device is composed of a plurality of clamping components (1) and at least one marking component (2), the clamping components (1) are movably connected and can be fixedly connected, and at least one clamp (3) is arranged on the clamping component (1); the marking component (2) comprises a probe (4) and a marking knife (5) fixed on the probe, one end of the probe (4) is provided with a pinhead (6), and the marking component (2) is used in concert with the plurality of clamping components (1). The forming device of the present invention can realize one-step groove forming for oblique crossing of pipe fittings with different diameters at any angle.