Abstract: A garment is provided which includes a flat-knitted fabric laminate made of at least one flat-knitted fabric. The flat-knitted fabric includes a polyurethane film which is stretchable in substantially all directions. A knit fabric made of fleecy thread may be adhesively bonded to the film and be positioned between the film and the inner lining. The garment can be made up of five tailored flat-knitted laminate pieces: three flat-knitted laminate pieces for the two front sides and the rear side of the torso, and two flat-knitted laminate pieces for the two sleeves. The seams form the two sleeve cuffs, and the seams are sewn onto the flat-knitted laminate pieces for the torso. The front pieces are sewn together, and the rear side of the torso piece is positioned along the side of the torso by a respective seam. The seams are used to connect these parts along the shoulders.

Abstract: Wigs include a cloth member, having hairs attached thereto and shaped into a dome for receiving a user's head, and a polymer flexible member adhered to an underside of the cloth member using an adhesive which extends upwards through the cloth member to a topside of the cloth member to form a realistic scalp-like appearance at the topside of the cloth member and to more securely secure the hairs of the wig. Methods of wig modification include adhering a flexible polymer member to an underside of a cloth member of a wig with a flesh-toned adhesive which extends upwards through the cloth member and covers a portion of the topside of the cloth member. Methods of wig construction include providing a cloth member, forming at least one flexible polymer member and coupling hairs thereto, and coupling the flexible polymer member to the cloth member using a flesh-toned adhesive.

Abstract: A resin composition for flame retardant artificial hair which has favorable transparency and combability similar to those of human hair and exhibits excellent flame retardancy. A resin composition for flame retardant artificial hair is obtained by configuring a resin composition including 100 parts by mass of a polyester (A) and 5-40 parts by mass of a bromine-containing flame retardant (B) including at least one kind selected from poly(pentabromobenzyl acrylate), a brominated phenol resin, and polydibromophenylene oxide, wherein the melt viscosity of the polyester (A) is 80-300 Pa·s.

Abstract: A system having a sleeve, a rod, a microtube, a transitional member, and an acceptance member. The rod is sized and shaped to have an outer diameter that is smaller than a width of an existing hair and configured to accept the sleeve. The transitional member is sized and shaped to enable the sleeve to be slid from the rod and stretched onto the microtube. The microtube is sized and shaped to accept the existing hair and the sleeve. The acceptance member is sized and shaped to enable the existing hair to be positioned into the microtube. When the sleeve is slid off the microtube and onto the existing hair, the sleeve constricts towards its original diameter, thus gripping the existing hair.

Abstract: A system for a rapid production of apparel executes instructions to cause one or more processors to perform an on-demand production method. The method includes a first step of receiving a first set of data associated with the body shape of the user and a second step of selecting the one or more apparel. A third step is collecting a second set of data including one or more user preferences, and a fourth step is analyzing the first set of data and the second set of data. A fifth step is cutting the material, and a sixth step is stitching the one or more material pieces together. A seventh step is finishing the apparel, and an eighth step is tracking the status of the apparel.

Abstract: A safety eye installation tool for installing safety eyes in fabric includes a first handle that is pivotally coupled to a second handle. A first bar and a second bar are coupled to and extend from a first end of the first handle and a first terminus of the second handle, respectively. A channel is positioned in the second bar distal from the second handle. The channel is configured to insert a rod of a safety eye that is positioned through a fabric and a washer. An eye of the safety eye is configured to abut the first bar. The first handle and the second handle are configured to be grasped in a hand of a user to pivot the first bar is toward the second bar. The washer is motivated along the rod toward the eye to couple washer to the rod and the eye to the fabric.

Abstract: A garment includes a hood portion and a sleeve portion detachably engaged at its proximal end with the hood portion, e.g., by snaps. Each sleeve of the sleeve portion has a hand pocket at its distal end that a person wearing the garment can insert her hands into when the sleeve portion is attached to the hood portion. Also, each sleeve portion at its proximal end is open so that when detached from the hood portion, a person can place her arms into the sleeve portion.

Abstract: Protective headgear assemblies are provided that reduces the impact forces by spreading them laterally and uses air to resist the impact forces and decrease the rate of deceleration of the human head on impact, can have an energy absorbent inflatable outer shell made of uniformly consistent viscoelastic material in contact with and placed directly on the outer surface of a rigid helmet; the outer shell layer having an inner layer and an outer layer separated into segments by partitions; the segments having openings into a common collector segment having an air valve to receive air from outside of the outer shell; the openings providing a restricted passage for the air in the segments to escape into the collector segment then distributed into remaining segments on impact, then returning to equilibrium after the impact.

Abstract: A conversion assembly is secured to a hard hat having a protective dome cover and a visor. The conversion assembly includes a plurality of compartment housings operatively secured together. A plurality of electronic circuits is housed within the plurality of compartment housings. A mechanical connector removably secures the conversion assembly to the hard hat when functions performed by the plurality of electronic circuits are required for a person wearing the hard hat. The invention provides enhanced functionality to an already existing hard hat, helmet or other protective head gear.

Abstract: There is provided a ventilation shoe that allows for downsizing and enables a shoe interior to be sufficiently ventilated. The ventilation shoe comprises an upper (31), a sole (32) formed by layering a plurality of sole plates, and a ventilation device configured to take the air into a shoe interior (34) and release the air out of the shoe interior (34). The ventilation device comprises an air intake passage (L1) configured to take in the air, an air release passage (L2) configured to release the air, and a pump chamber (P) configured to feed the air taken in through the air intake passage (L1) to the air release passage (L2). The sole (32) is formed by layering a plurality of sole plates. The pump chamber (P) is formed in a flat shape between the sole plates. Valve mounting apertures (152, 157) are formed in a middle sole plate that is placed vertically between other sole plates. Each check valve (V1, V2) integrated via a support member is mounted to the valve mounting aperture (152, 157).

Abstract: The present disclosure is directed to articles that include one or more coated fiber(s) (i.e., fiber(s) with a cured coating disposed thereon), where the coating includes a matrix of crosslinked polymers and optionally a colorant (e.g., pigment particles or dye or both). The cured coating is a product of crosslinking a coating composition including uncrosslinked polymers (e.g., a dispersion of uncrosslinked polymers in a carrier, wherein the uncrosslinked polymers are crosslinked to form the matrix of crosslinked polymers). The present disclosure is also directed to articles including the coated fibers, methods of forming the coated fibers and articles, and methods of making articles including the coated fibers.

Abstract: The present disclosure is directed to articles that include a cured coating that includes a matrix of crosslinked polymers and optionally a colorant (e.g., pigment particles or dye or both). The cured coating can include a matrix of crosslinked polymers. The cured coating is a product of crosslinking a coating composition comprising uncrosslinked polymers (e.g., a dispersion of uncrosslinked polymers in a carrier to form the matrix of crosslinked polymers), wherein the uncrosslinked polymers are crosslinked to form the matrix of crosslinked polymers. The matrix of crosslinked polymers can be elastomeric. The present disclosure is also directed to articles including these bladders, methods of forming these bladders, and methods of making articles including these bladders, where the bladders include the cured coating.

Abstract: An article of footwear includes an injection molded outsole of a first material having a durometer reading of at least 28 to at most 38 on the Asker C scale, an injection molded insole of a second material having a durometer reading of at least 28 to at most 38 on the Asker C scale, and an upper, at least a section of a peripheral edge of the upper being sandwiched between the insole and the outsole.

Abstract: A footwear configured to attenuate shock and provide rebound is provided, including an outsole having independent compression pods separated from an outer support perimeter by a peripheral groove and from one another by multiple transverse grooves that are deeper than the peripheral groove. The pods can extend from a medial side to a lateral side, across a majority of an outsole width. The pods can compress individually and forwardly as the footwear engages the ground, and can rebound, providing energy return. The pods can independently compress medially and/or laterally to provide enhanced side to side flexibility of the outsole and attendant cushioning. The transverse grooves can be deeper than the thickness of the lower walls of the pods so that those lower walls can compress deeply upward and into the outsole to provide shock attenuation. A cushion unit can be adjacent those surfaces and can further provide rebound.

Abstract: A tunable rigidity insole with interchangeable stiffeners includes an arch pad main body and three rigid stiffeners. The arch pad main body includes a set of first to third engaging holes, and at least one or two of these three rigid stiffeners will be selected to assemble into the engaging holes on the arch pad main body. The three rigid stiffeners provide supports to lateral longitudinal, central and medial longitudinal arch portions respectively. The first, second and third rigid stiffeners have at least two engagement members for each stiffener, and the engagement members have engagement extensions with a partial length component toward another engagement extensions at the end of stiffeners thereof respectively. The engagement members engage with the arch pad main body corresponding to the engaging holes respectively.

Abstract: A shoelace retainer is provided for use with a shoe. The shoelace retainer generally includes a base defining at least one channel for receiving a first portion of a shoelace therein while the shoelace is coupled to a shoe, thereby coupling the shoelace retainer to the shoe, and a cap associated with the base and defining at least one receptacle relative to the base where the at least one receptacle is configured to receive a second portion of the shoelace when the base is coupled to the shoe.

Abstract: A link or slide for a garment strap includes mutually parallel longitudinal bars and a pair of opposing transverse bars each forming a juncture with ends of the longitudinal bars. The transverse bars curve forward from the junctures away from the rear of the longitudinal bars, reducing potential discomfort to an active wearer. In embodiments, the link is formed of resilient material and the link thickness tapers to a minimum at the junctures, forming flexible zones which provide added comfort. In additional embodiments, the longitudinal bars have angled edges adjoining slots through which the garment strap passes. The angled edges resist undesirable motion of the strap, especially while the wearer is exercising.

Abstract: A seat-belt tongue includes a plate having a longitudinal portion that is insertable into a buckle, and a broader portion that is located on an opposite side of a tip end of the longitudinal portion and is formed wider than the longitudinal portion, wherein the broader portion has a base that is connected to the longitudinal portion, a beam that extends in a long-side direction of the broader portion, a connecting portion that connects the base and the beam at each end in the long-side direction, and a through hole that is formed by the base, the beam, and the connecting portion and through which a seat belt is inserted, and the beam or the base is formed such that a cross-sectional area of the beam or the base when viewed in the long-side direction becomes smaller at both ends than at a center in the long-side direction.

Abstract: In a cover of a buckle device, an engagement hook of a side wall of an upper cover is fit together with an engagement groove of a side wall of a lower cover to assemble the upper cover to the lower cover. When the side wall of the upper cover receives an external force, a holder of a buckle switch is sandwiched between a side plate of a buckle body and a rib of the lower cover such that the side plate receives the external force. Accordingly, the rigidity at the engagement hook of the cover is able to be increased.

Abstract: Embodiments of the invention provide a connector for a soft or flexible article, the connector including a male structure comprising a base and a projection, the projection defining a head and a stem connecting the head to the base, the head having a diameter greater than the diameter of the stem, the male structure base defining at least one tag extending substantially perpendicular to the projection. The connector includes a carriage structure comprising a base which defines a socket arranged to receive the projection of the male structure, the carriage structure defining at least one tag extending substantially parallel to the socket.

Abstract: An attachment device includes a webbing matrix having an elastic property in at least one direction, and a gripping member fixedly connected to a first distal end the webbing matrix. The device further includes a first hook or loop material disposed proximate a second distal end and on a first side of the webbing matrix, and on a second corresponding hook or loop material disposed proximate the first distal end and on a second side of the webbing matrix. The device further includes a series of gripping elements being infused into the second side of the webbing matrix, and a fastening device disposed on the first side of the webbing matrix, where the fastening device includes a thin flexible base material surrounding a perimeter of the fastening device, the thin flexible base material fixedly connected to the webbing matrix.

Abstract: Locking mechanisms and electronic devices having locking mechanisms are described herein. In one example, a locking mechanism includes a latch configured to move between a locked position and an unlocked position, wherein a component of the electronic device is secured in the locked position and removable in the unlocked position. The locking mechanism further includes a memory wire in communication with the latch, wherein the memory wire is configured to contract in length to move the latch between the locked position and the unlocked position to release the component of the electronic device.

Abstract: The current invention is a flexible bracelet with the name of a chore on it. The bracelet serves as a reminder to complete a task. The user flips the bracelet after completing the task, so the text is covered. The bracelets are a great tool to help shift responsibility for tracking chores from a parent to a child, developing and strengthening positive personal habits. The bracelets will be available in a variety of colors, with icons and names of many regular tasks.

Abstract: A device for attaching an end of a bracelet to an object, including a support plate, a control member, two pins slidably mounted on the same axis, called the sliding axis, wherein the control member is mounted to move in translation on an arbor, called the translation arbor, which is substantially perpendicular to the support plate, and wherein the control member is offset with respect to the sliding axis of the pins and connected to the latter by connecting elements able to transform the translational movement of the control member into a sliding movement of the pins when the control member is actuated.

Abstract: A variable-sized finger ring includes a fixed diameter outer ring component surrounding a circumference of a finger opening, a moveable inner component positioned along a portion of the circumference of the finger opening, a compression spring elastically biasing the moveable inner component radially inwardly in relation to the fixed diameter outer ring component.

Abstract: The invention relates to a decorative element comprising an elongate support body and a multitude of, in particular faceted, gemstones on an adhesive layer on the support body, wherein a minimum position and a maximum position exist for each of the gemstones.

Abstract: Jewelry that includes a topographical feature of a selected geographic location is made by obtaining topographic data for a geographic area around the selected location. The data is then used to create a topographic surface that is representative of the topography of the area and the 3D surface is adjusted for scale, viewpoint, and other features and merged with a template for a piece of jewelry. The resulting merged object is printed and the printed object is cast to produce a piece of jewelry that includes a topographic representation of the selected location.

Abstract: The invention relates to a Nordic walking pole, comprising a pole tube (2), at the lower end of which an attachment (3) is provided, to which attachment a buffer (4) of rubber-elastic material is detachably fastened. The buffer according to the invention has an insert (5) of hard material in a central cut-out. Said insert is fastened to the attachment in order to connect the buffer to the pole.

Abstract: A smart self-driving system includes a body, such as a piece of luggage, supported by a plurality of wheel assemblies. At least one wheel assemblies includes a wheel rotating motor configured to rotate a wheel of the wheel assembly to move the luggage in a given direction. At least one wheel assemblies includes a wheel orientation sensor configured to measure the orientation of the wheel. At least one wheel assembly includes a wheel orientation motor configured to orient the wheel in the given direction. The smart self-driving system is configured to move in forward direction that is different than a head direction of the body.

Abstract: To provide a technology capable of easily constructing a headphone stand in a coffee shop or the like. A bag includes a bag body including a front part and a rear part that face each other, an opening provided on an upper edge of the bag body, and a shape keeping part that prevents closing of the opening and keeps the bag body expanded.

Abstract: The embodiments disclose an apparatus, including at least one digital device protective case, wherein a front magnet coupled case bumper with a plurality of magnets and a back magnet coupled case bumper with a plurality of magnets form a magnet coupled digital device protective case to hold and protect a digital device including a phone, wherein a back slide coupling and a front slide coupling slide into a slide coupled digital device protective case, a tempered glass front face and a tempered glass back for coupling to the front magnet coupled case bumper and back magnet coupled case bumper respectively, and wherein a slide coupled digital device protective case with one partially open end to insert and protect a digital device including a phone includes a front slide coupling coupled with the tempered glass front face and a back slide coupling coupled with the tempered glass back.

Abstract: A protective case for a portable electronic device includes aa housing with an open tray and a resilient cord. The tray is recessed into the rear of the housing. The cord spans the opening of the tray, creating a cord pattern of overlapping segments capable of securing items placed into the tray. In an embodiment, the tray may be separated from the housing and the cord separated from the tray. A user may customize the cord layout by threading the cord across the tray opening in a desired pattern based on the goods within the tray.

Abstract: The present invention provides an improved method of hairdressing for dreadlocks, the results of which are long lasting without the requirement of extensive and costly maintenance. The method curls locks internally using a length of thread (14) that is inserted inside each dreadlock (16) using a needle-like device (12) and attached to the dreadlock at two or more attachment points (18, 20). The thread (14) is tensioned between the two or more points (18, 20) so as to compress the hair between said points, thereby shortening the length of the dreadlock (16). This compression also allows for any weak points in the locks (16) to be condensed and strengthened. If enough shortening is applied, the dreadlock (16) will reach a point at which it cannot compress any further and will consequently curl or kink. The more tension applied, the more the dreadlock (16) will curl or kink.

Abstract: The invention relates to a process for straightening keratin fibres, comprising: (i) a step in which a straightening composition containing at least two denaturing agents is applied to the keratin fibres, (ii) a step in which the temperature of the keratin fibres is raised, using a heating means, to a temperature of between 110 and 250° C.

Abstract: The hair treatment method includes the following steps (i) to (iii) for dyeing hair and at the same time deforming hair semi-permanently or permanently: (i) a step of dyeing hair through a hair treatment including applying a dye to the hair, (ii) a step of applying the following components (A), (B), and (C) to the hair, (A): one or more compounds selected from the group consisting of glyoxylic acid, a glyoxylic acid hydrate, a glyoxylate salt, and a glyoxylamide; (B): a phenolic compound having an electron-donating group on at least one m-position and having a hydrogen atom on at least one of the o-positions and the p-position, wherein the electron-donating group on the m-position may form, together with an adjacent carbon atom, a benzene ring optionally substituted with hydroxyl group(s); (C): water, and (iii) a step of heating and shaping the hair.

Abstract: Decorative articles of apparel, such as decorative headbands, are provided. In an exemplary embodiment, a decorative article of apparel includes a body member for at least partially encircling a wearer. Further, the decorative article of apparel includes a plurality of elastic string members mounted to the body member. Each elastic string member is configured to be stretched to form a channel between the body member and the respective elastic string member. Also, each elastic string member is configured to exert a constrictive force on and retain an inserted element in a respective channel.

Abstract: In an embodiment, the present invention is a treatment sheet for separating portions of hair during a color processing treatment. In the embodiment, the treatment sheet is clear and transparent.

Abstract: The invention discloses an infrared intelligent constant-temperature electric blower. The infrared intelligent constant-temperature electric blower comprises a blower body, an infrared temperature measuring device, an LCD device, a touch control button, an MCU processor and two silicon controlled rectifiers; the blower body is internally provided with a fan and a heating device; the infrared temperature measuring device is installed at an air outlet of the blower body; the LCD device is embedded on the outer side wall of the blower body; the touch control button is embedded on the outer side wall of the blower body; the MCU processor is internally arranged in the blower body, the input end is connected with the infrared temperature measuring device, and the output end is connected with LCD device; the two ends of one silicon controlled rectifier are connected to the MCU processor and the fan respectively.

Abstract: Disclosed herein are methods, apparatuses, systems for treating and preventing pseudofolliculitis barbae on a skin surface area. A method comprising: applying a first cosmetic product to a skin surface area affected by pseudofolliculitis barbae; contacting a stone grooming apparatus, having a convex tephra composite head and a cylindrical elongated member handle, to the skin surface area affected by pseudofolliculitis barbae in a consistent motion and in an amount effective to dislodge embedded ingrown hairs on the skin surface area affected by pseudofolliculitis barbae; exfoliating inflamed skin particles on the skin surface area affected by pseudofolliculitis barbae; and applying a second cosmetic product to the skin surface area affected by pseudofolliculitis barbae.

Abstract: A device for enclosing a typical nail clipper for the purpose of collecting virtually all nail clippings, including clippings that are discharged from the clipper at an angle less than 90 degrees from the face of the clipping surface, further comprising a sound dampening spring that is positioned between the upper and lower sections of the typical nail clipper.

Abstract: The present invention relates to a device for applying a cosmetic composition (P) to the lips, comprising: —an applicator member (8) comprising a partially flocked applicator head (9) —a container containing the composition which is in the form of an emulsion comprising: ?water; ?at least one film-forming agent chosen from vinyl polymers comprising at least one carbosiloxane dendrimer-based unit; ?at least one polar non-volatile hydrocarbon-based oil; ?at least one non-volatile phenyl silicone oil, preferably without dimethicone fragment. The invention also relates to a process for making up and/or caring for the lips, in which said composition is applied to the lips by means of the device previously described.

Abstract: A cosmetic applicator for applying a cosmetic or care product includes an applicator head constructed from a thermal storage material. The applicator head is retained at a distal end of a stem. The applicator head comprises an applying member at a distal portion of the applicator head. The applying member includes at least one side face and an end face, and a longitudinal feed channel is disposed within the applying member. A distal end of the longitudinal feed channel opens to the end face of the applying body and defines an opening at the end face.

Abstract: A stencil system for marking up an eyebrow area for a cosmetic procedure comprises a stencil composed of a thin, flexible, clear plastic-like film having an adhesive on its back side for adhering to a client and further featuring a plurality of imprinted reference positioning designators to use to position the stencil. The imprinted reference positioning designators correspond to at least four reference points on a client face, and the imprinted reference positioning designators align with at least three reference points on covering both sides of the client face to provide a three-point reference alignment to position the stencil onto the client face. The three-point reference alignment replicates on both sides of the face to provide for symmetrical placement of the stencil on both sides of the client face.

Abstract: The present invention relates to a support structure for a rucksack, including a support framework having a first and a second bearing point arranged at a spacing from one another along a first direction, and a first and a second rotation element. The first rotation element is mounted on the support framework at the first bearing point and is rotatable about a first rotation axis and the second rotation element is mounted on the support framework at the second bearing point and is rotatable about a further rotation axis. The first and second rotation elements are constructed for receiving a shoulder belt and hip belt, respectively, in a torsion-resistant manner. The first and the second rotation element are rotationally coupled to one another in a manner reversing the direction of rotation.

Abstract: The present disclosure provides hands-free item carrying devices and related methods. The devices include a support platform including an interior surface with an item support portion, a bottom and top ends. The devices further include a flexible stabilizing portion coupled to a bottom portion of the support platform and positioned adjacent to the interior surface. The devices also include a body harness with a pair of shoulder straps, at least one first end portion coupled to the stabilizing portion, and at least one second end portion coupled to at least one of the stabilizing portion and the support platform. When the shoulder straps are worn by a user, the support platform is selectively movable between an open positioned angling away from the user from the bottom end with the top end being distal to the user, and a closed positioned with the top end being proximate to the user.

Abstract: The present disclosure relate to a smart and intelligent water bottle that can inform its user of his hydration needs by tracking water consumed by the user and also functions as a safety device by enabling user to transmit a SoS and GPS co-ordinates to predefined list of friends, family or official institutions. The bottle, while tracking water consumption, can differentiate between actual consumption and intended or unintended discharge of its contents. The bottle incorporates a panic button configured to recognize a genuine pressing of the panic button based on natural increase in heart rate of the user in case of emergencies. The disclosed bottle incorporates a capacitive sensor and a tilt sensor for measurement of water present in the bottle is done. In an aspect, the capacitive sensor is configured centrally within a hollow space in the bottle to prevent its contact with water.

Abstract: Described herein is an apparatus and method for attaching an ultrasound imaging device to a user. The apparatus may include a clip configured to clip to a portion of the user's clothing. The apparatus may further include a holding element configured to receive the ultrasound imaging device and hold the ultrasound imaging device in place.

Abstract: A brush head for an oral care implement includes at least one (first) group of tufts extending from a mounting surface of a tuft carrier having a rotation axis. The tufts have a base end and a free end. The tufts of the first group are tufts having an extension in a circumferential direction about the rotation axis exceeding an extension in a radial direction. The tufts of the first group may be inclined with respect to the mounting surface in at least one direction. Each of the first-group tufts may comprise a first group of filaments and a second group of filaments, wherein the second-group filaments' free ends protrude beyond the first-group filaments' free ends.

Abstract: A hair brush includes a handle defining a longitudinal axis and a brush head having at least two longitudinal primary arms extending longitudinally from the handle and disposed in lateral spaced relation to define a longitudinal gap therebetween. Each of the longitudinal primary arms includes a pair of longitudinal rear spines disposed in lateral spaced relation, a single longitudinal intermediate spine extending from the rear spines, and a pair of longitudinal forward spines disposed in lateral spaced relation and extending from the intermediate spine. Hair engaging bristles are disposed on each of the rear spines, the intermediate spines and the forward spines. The at least two longitudinal primary arms are substantially flexible to conform to the contour of the user's head. A container containing a hair treatment agent such as dry shampoo may be releasably mounted to the handle.

Abstract: A personal hygiene device has a handle, a treatment head, and a motor carrier disposed in the handle. The motor is pivot-mounted against at least one spring element arranged between the handle and the motor carrier. The motor has a stator portion fixedly mounted at the motor carrier and an armature portion spring mounted at the motor carrier to allow a motion relative to the motor carrier. The armature portion is coupled with a drive shaft connected with the treatment head for transferring motion thereto, wherein an external treatment force acting on the brush head leads to pivoting of the motor carrier relative to the handle. The motor has a motor permanent magnet and a coil for providing an alternating electromagnetic field interacting therewith to excite an oscillating motion of the drive shaft.