Abstract: A method for grinding a gear wheel by a worm grinding wheel in a grinding machine, wherein the tooth flanks of the gear wheel are ground by the abrasive flanks of the profiling of the worm grinding wheel. In order to increase the productivity of the grinding, the method includes the following steps: a) calculating the engagement ratios between the abrasive flanks of the profiling of the worm grinding wheel and the tooth flanks of the gear wheel, wherein the size of the profile forming zone is determined; b) determining a geometry modified in respect of the geometry determined according to step a) such that the profile forming zone is minimal; c) profiling the worm grinding wheel with the geometry which has thus resulted; d) grinding the gear wheel by the worm grinding wheel profiled according to step c).

Abstract: An angle adjustment structure for pressing a hand tool comprising: a first handle, a second handle, a first spring washer, a second spring washer, a return spring, a first presser, a second presser, a first fastener and a second fastener. The first handle includes a contact sheet having a first thickness, a first toothed orifice. The second handle includes a groove having a second thickness, a second toothed orifice, a first fixing plate and a second fixing plate. A profile of the second toothed orifice is identical to a profile of the first toothed orifice. The return spring is defined on the first presser and the second presser. The first handle and the second handle adjust the angle when the first presser and second presser are pressed simultaneously, and being fixed by the first fastener and second fastener to avoid a removal.

Abstract: A cleaning device and methods for cleaning are provided. In one embodiment, the cleaning device includes a head assembly, a body assembly, and a handle assembly. The cleaning device also includes components that enable the cleaning device to operate in dry cleaning modes and wet cleaning modes. Dry cleaning modes can employ a vacuum assembly, including a motor, tubing, and a fluid recovery tank in order to draw in debris and waste into a fluid recovery tank. Wet cleaning modes can further employ a fluid supply tank, a pump, and tubing in order to supply fluid to a brushroll to aid in a cleaning process.

Abstract: A removal tool configured for removing an insertable engine component from an engine assembly. In the removal tool may include a coupling device, a drive member, and a lifting member attached to a main shaft. The coupling device is mounted onto a retainer securing an engine component, and the lifting member is positioned against the underside of a flange of the engine component. A rotational force applied against the drive member is transferred to the coupling device and causes the retainer to be unscrewed. As the retainer is unscrewed, this causes a lifting force from the retainer pushing against the coupling device, which causes the lifting member to be pushed upward, and further causing the engine component to be pushed upward and away from the engine assembly. This facilitates removal of the engine component concurrently with the removal of the retainer (e.g., in a single operation).

Abstract: A torque wrench includes an elongated body, a head, and a cantilever beam. The body extends longitudinally from a proximal end to a distal end and includes a channel extending therethrough. The distal end includes an opening extending laterally therethrough along a central axis. The head is rotatably received within the opening at the distal end so that the head is rotatable about the axis. The head includes a gear cam defining teeth about a periphery thereof and an engaging portion sized, shaped, and configured to engage a corresponding engaging feature of a fixation device. The beam is housed within the channel such that a distal tip is received in a space between adjacent teeth. The beam bends when a torsional force applied to the head exceeds a predetermined limit so that the cam rotates about the axis and the distal tip slips from the space between the teeth into an adjacent space.

Abstract: Disclosed are aspects of exemplars of torque-limiting devices, methods and mechanisms exemplars methods may include placing an actuator in a tool containment interface of a handle; movable mounting a tool portion with an actuation catch and a work piece engaging region (WER) in the interface; applying sufficient force to the movable mounting to the handle may be via pins, guides and slots. Said catch may be one of a body catch and a lever catch; and, the actuator terminates on one of a ball shaped end that forms and interface with the body catch and a force lever that forms an interface with the lever catch.

Abstract: A backerplate for a portable drywall sander hub assembly includes a mounting portion and a backerplate body. The mounting portion includes a threaded bore adapted to couple the backerplate to a sander hub. The backerplate body is connected to the mounting portion. The backerplate body forms a plurality of apertures therein positioned radially between an outer circumference of the backerplate body and the mounting portion. The plurality of apertures are adapted for dust to pass therethrough during operation of a drywall sander with the backerplate mounted thereto.

Abstract: The invention related to a slide-grinding body having two sections that come to a point and emanate from a base cross-section, wherein the geometry of the base cross-section (4) has curved flanks, the base cross-section is the largest at the centre and the cross-section becomes linearly or exponentially smaller towards the points of the sections (2).

Abstract: A manual ceramic cutter with an adjustable set-square, having a set-square (1) installed at one of the longitudinal extremities of a base (2) for supporting the ceramic items to be cut, and a manually-operated cutting head (3) installed with the possibility of displacement along a number of longitudinal guides (4). This cutter comprises adjustment means (13, 14) of the perpendicularity of the set-square (1) with regard to a cutting line (L1) of the cutter, and fixing means (11, 12) of the set-square (1) to the base (2). It further comprises visual verification means of the perpendicularity of the set-square (1) with regard to the cutting line (L1).

Abstract: A sliding ring for a grinding device consisting of a grinding element and a hood covering the grinding element and a sliding ring attachable to the side of the hood facing a surface to be machined, the sliding ring having a sliding surface provided for sliding on the surface to be machined, the sliding ring consisting of at least one elastic component and a sliding component, the sliding surface being formed on the sliding component and the elastic component being arranged on the side of the sliding component opposite the sliding surface.

Abstract: A torque wrench includes a body and a measuring device. The body includes a head portion and a rod portion. An end of the rod portion is connected with the head portion. The measuring device includes a strain gauge seat and a strain gauge. The strain gauge seat is arranged in the rod portion and is provided with a first recess and a deformation portion adjacent to the first recess. The strain gauge is connected to the deformation portion, thereby obtaining a precise torque value.

Abstract: A cleaner includes: a suction unit; a suction motor that generates suction force for sucking air through the suction unit and includes an impeller; a dust separation unit that includes one or more cyclone units generating cyclonic flow to separate dust from air flowing inside through the suction unit; a dust container that stores dust separated by the dust separation unit and is disposed under the suction motor; a battery disposed behind the dust container to supply power to the suction motor; and a handle disposed behind the suction motor, wherein a rotational axis of the impeller and an axis of the cyclonic flow vertically extend and an extension line from the rotational axis of the impeller passes through the one or more cyclone units.

Abstract: A cleaning system includes: a cleaning vehicle 1 that travels along a predetermined travel path R to clean the travel path; and a maintenance facility 2 provided at a maintenance stop position A set on the travel path R, wherein the cleaning vehicle 1 includes a suction portion 14 that sucks up dust on the travel path R, a storage portion that stores the sucked up dust, and a discharge portion 16 that discharges the dust stored in the storage portion to the outside, and the maintenance facility 2 includes a dust collection portion 214 that collects the dust discharged to the outside from the storage portion via the discharge portion 16 of the cleaning vehicle 1 stopped at the maintenance stop position A.

Abstract: An angle grinder includes a housing, an output shaft at least partially extending out of the housing and being rotatable about a first axis relative to the housing, a sleeve fixedly connected to the housing, a first shield surrounding the output shaft and detachably connected to the sleeve, a second shield surrounding at least a part of the first shield and detachably connected to the first shield, and a connector configured for connecting the second shield to the first shield. The second shield is formed or connected with a mounting element for cooperating with the connector, and the connector and the mounting element are separately formed.

Abstract: Thin glass elements with improved edge strength are provided—from a sheet glass element that has two opposite parallel faces and an edge connecting the faces. The sheet glass element has a thickness of at most 700 ?m. At least a portion of the edge is defined by an edge surface portion that is convexly curved, so that at least one of the faces merges into the edge surface portion, wherein a curved arc of the edge surface portion has a length that is at least 1/30 of the thickness of the sheet glass element. In the region of the convex curvature, the edge surface portion has indentations in the form of furrows.

Abstract: The invention relates to a screwing tool for transmitting a set torque. Two torque-limiting arrangements (5, 7) are provided that are biased by the same spring element (9).

Abstract: A thrombectomy device cleaning apparatus for cleaning a thrombectomy device while maintaining the integrity of removed blood clots includes a box with a box left side and a box right side each having a receiving channel adjacent an open box top side. A mesh screen is coupled to a plurality of hinges. The mesh screen has a screen channel extending from a screen left edge to a screen right edge with a profile conforming to a receiving channel of each of the box left side and the box right side. The channel receives a thrombectomy device. A lid moves between a closed position covering the mesh screen in the use position and an open position exposing the mesh screen. A pair of brush rollers is coupled to the lid and positioned to rest within the screen channel of the mesh screen. The pair of brush receives the thrombectomy device therebetween.

Abstract: A floor types identifying device for use in a vacuum cleaner is disclosed, and comprises a current sensing unit coupled and a processing and controlling module. When a suction head is moved, a driving current of a roller brush driving motor is detected by the current sensing unit, such that the processing and controlling module judges that the suction head is moved on a specific floor that has a hard surface, a short-pile-carpeted surface or a long-pile-carpeted surface according to a variation of the driving current. Therefore, for a vacuum cleaner that is integrated with the floor types identifying device of the present invention, both suction power of the vacuum cleaner and driving power of the roller driving motor can be properly adjusted in response to the floor's surficial material type.

Abstract: A torque tool is provided, including: a main body, a driving portion, a torque mechanism and an adjusting mechanism. The main body defines an axial direction. The driving portion is disposed on an end of the main body. The torque mechanism is non-rotatably disposed within the main body. The adjusting mechanism includes a plurality of first engaging portions disposed on the main body and an adjusting member rotatably disposed on the main body, and the adjusting member includes a plurality of second engaging portions releasably engaged with the plurality of first engaging portions. The main body defines a center line parallel to the axial direction, and as viewed in the axial direction, hypothetical lines extending between the plurality of second engaging portions and the center line define a plurality of included angles, and at least two of the plurality of included angles have different angle sizes.

Abstract: A glider tool can be provided for installing a back panel of an enclosure. The glider tool can include a body having a first surface, a second surface opposite the first surface, a first end, and a second end opposite the first end, the body defining a length that extends from the first end to the second end. The first end of the body can be configured to engage a front frame member of the enclosure, and the second end of the body can be configured to contact the enclosure, when the glider tool is in an installed configuration.