Abstract: The invention is directed to a power driven hair clipper (HSM), comprising a drive mechanism provided in a housing (1) and a clipper head (S) equipped with a clipper comb (3) and a reciprocating clipper blade (4, 82), wherein provision is made for a foil (47) between the clipper comb (3) and the clipper blade (4, 82), such that an engagement surface (A2) of the clipper blade (4, 82) provided opposite the row of cutting teeth (42, 43) is carried on the foil (47) in sliding relationship thereto.

Abstract: The invention is directed to a power driven hair clipper (HSM), comprising a drive mechanism provided in a housing (1) and a clipper head (S) equipped with a clipper comb (3) and a clipper blade (4) and mounted on a wall of said housing (1) for pivotal motion about a pivot axis (Z) by means of a supporting element (T), wherein the clipper head (S) has two cutting teeth rows (40, 41) arranged in opposed relation to each other, wherein the supporting element (T) releasing the cutting teeth rows (40, 41) is constructed as a housing shell (5), wherein the geometric form of the housing shell (5) is formed by a sector (SK1, SK2) of a cross sectional shape of at least one circular cylinder (Z1, Z2) as well as end walls (24, 25) associated with said sector (SK1, SK2), said end walls being constructed as part of a conical surface (KM1, KM2) with cone angles (&agr;1, &agr;2) relative to the pivot axis (Z), and wherein the housing wall (110) adjacent to the housing shell (5) has an inner contour that is essentially para

Abstract: A hair clipper unit that includes edger blades on one end and taper blades on the other end. The clipper system allows a stylist to rapidly switch operation between the two sets of clipper blades and includes a power cord directing assembly including a power cord that extends from a center side surface of a motor housing and a cord securing clip on either side of the cord housing exit point for holding the cord in the proper orientation during use. The dual blade clipper unit also includes two separate drive motors, one for each set of clipping blades, and a drive motor cooling system to further reduce the heat generated by operation of the clipper unit.

Abstract: An implement is provided and has a drive motor secured to one end of a carrying tube and connected via a drive shaft in the tube with the other end of the tube. A first handle is disposed on the tube in the vicinity of the drive motor and is spaced from a second handle. To support the forearm of an operator, a supporting device is provided that extends in the longitudinal direction of the carrying tube in the direction toward the drive motor. The longitudinal axis of the supporting device forms an angle of less than 90° with the carrying tube and is open toward the drive motor.

Abstract: A protective sleeve assembly for preventing damage to a power cord providing alternating voltage and current to an electric cutting implement during the inadvertent contact between the edge of the blade assembly of the cutting implement and the power cord is invented. The protective sleeve assembly comprising: a through-wall slit that extends longitudinally the full length of the protective sleeve assembly where the though-wall slit allows for easy insertion of the power cord into the interior of the sleeve assembly; support surfaces at opposing edges of the through-wall slit which extends the length of the slit that provides for compressive interference between the opposing edges of the slit; and, a method of attaching the first end of the protective sleeve assembly to the alternating current carrying power cord connected to the electric cutting implement.

Abstract: Disclosed herein is a razor assembly comprising a power unit including a rotatable output shaft, and a detachable head assembly adapted to receive a common disposable razor blade and comprising a hollow base received on the power unit in stationary relation thereto, and a rotatable member mounted in the hollow base for rotation relative to the base, in driven engagement with the output shaft so as to rotate in response to rotation of the output shaft, and including an eccentric weight rotating in common with the member and operable, in response to rotation of the member, to vibrate the detachable head assembly.

Abstract: An electromagnetic linear actuator including a stator having an electromagnetic coil, and at least one movable element made of a permanent magnet or a magnetizable material and operable to reciprocate the movable element in a linear direction, and a cutter head including at least first and second blade members adapted to be driven by the electromagnetic linear actuator to cooperate with each other to perform a hair cutting with the first blade member coupled with the movable element. The cutter head is disposed on a line of extension in a direction conforming to a direction of movement of the movable element and that the first blade member is reciprocatingly driven substantially in the same direction as the direction of movement of the movable element. Where the first blade member is a single movable blade, the second blade member may be either a stationary blade or a movable blade or the both.

Abstract: Disclosed herein is a hair clipper comprising a blade set, a blade drive assembly located in rearward relation to the blade set and drivingly connected to the blade set, a housing assembly extending rearwardly from the blade set and including a main portion, and a removable portion located adjacent the blade set in enclosing relation to the blade drive assembly, and structure on the main portion and on the removable portion resiliently and removably connecting the removable portion to the main portion.

Abstract: A hand-held power working machine which makes it possible to enlarge the area of the front handle portion which is available for gripping, to enhance the rigidity of the hand protector, and to facilitate the mounting of the front handle and hand protector. This hand-held power working machine comprises a front handle portion and a hand protector, and is characterized in that the hand protector is constituted by a rear protector body having an inverted U-shaped cross-section formed with an upper plate and right and left side plates, and by a front protector body disposed in front of and extending outwardly from the rear protector body and forming a sectorial shape, and in that the front handle portion is integrally formed with the side plates of the rear protector body.

Abstract: A sleeve for surrounding a power cord, in whole or in part, for apparatuses such as hedge trimmers. The sleeve, preferably composed of a lightweight polymeric material in expanded, corrugated or similar form, has relatively large radial dimensions compared to the cord and therefore resists the insertion of the sleeve and the cord into apparatuses (such as a hedge trimmer's cutting blades) thereby preventing damage to the sleeve and the cord and preventing other undesired results. In addition, the relatively large size of the sleeve tends to increase the user's awareness of the sleeve and cord. Also the sleeve's increased rigidity compared to the cord aids in preventing the cord from being entangled in the apparatus and assists in managing and manipulating the cord. The sleeve is also lightweight and flexible enough so as not to constrain the intended function of the cord.

Abstract: A set of hair cutting blades, for use with an electric buzzer, comprising at least one upper blade and at least one lower blade. The upper blade has a plurality of upper teeth, and has a short side and a long side. The upper teeth vary in length such that they gradually increase in length between the short side and the long side. The upper teeth also vary in height such that they gradually increase in height between the short side and the long side. The lower blade has lower teeth which are uniform in both length and height. The upper blade is mounted to the buzzer directly over the lower blade and the blades are reciprocated against each other to create a cutting action. By a preferred embodiment, left and right facing upper blades are provided which form a mirror image of each other such that among both of said blades the short side and long side are reversed.

Abstract: A hand held power assisted shears has a piston located in a cylinder formed in a pistol grip body. A trigger controls the position of a hollow shuttle spool rod which slides longitudinally within a hollow piston rod connected between the piston and the blades. The hollow shuttle spool rod carries pressurized working fluid to the piston where it is directed to the space above or below the piston. The piston drives the blades through the piston rod to a position corresponding to the position of the trigger allowing the operator to continuously control the position of the blades and the extent and rate of closure during cutting. The relative position of the shuttle spool rod and the piston rod controls whether the working fluid is directed above or below the piston to open or close the blades. One end of the shuttle spool rod acts as a piston which causes the blades to open automatically when the trigger is released.

Abstract: A hair-cutting apparatus (1) is provided having a toothed cutting device (5) comprising a stationary first toothed cutter (6) with a first cutter-tooth row (7) and a second toothed cutter (9) with a second cutter-tooth row (10), which second toothed cutter is drivable so as to reciprocate about a pivotal axis (8), the first cutter-tooth row (7) of the first toothed cutter (6) extends linearly in a first row direction (23) and the second cutter-tooth row (10) of the second toothed cutter (9) comprises two row segments (24, 25) which in a central position of the second toothed cutter (9), starting from a center point (26), diverge with respect to the linear direction of the first cutter-tooth row (7).

Abstract: A vibrator motor for electric hair clippers, massagers and the like includes a fixed magnetically permeable piece and a moving magnetically permeable piece. The fixed and moving pieces form a plurality of flux gap zones between selected corresponding surfaces of the fixed and moving pieces.Each of the flux gap zones has an air gap formed between the selected corresponding surfaces of the fixed piece and the moving piece. The air gaps have a total gap surface area, and an apparent gap surface area. The apparent gap surface area can be measured by viewing a selected surface which forms each gap through a plane which is generally perpendicular to the direction of the path of oscillating motion of the moving piece, or through a selected cross-section of the fixed or moving piece which is perpendicular to the path. In this invention, the total gap surface area of the gap in at least one of the flux gap zones is greater than the apparent gap surface area of that gap or gaps.

Abstract: A hair-cutting apparatus has a toothed cutting device comprising a stationary cutter with a row of cutter teeth and a reciprocable cutter with a row of cutter teeth, the cutter teeth of at least one of the two cutters are rounded at their distal ends except for the area of their shearing faces and in addition are wholly rounded over their entire tooth depth into the proximal tooth area except for the area of their shearing faces.

Abstract: A structure of an electric water-proof detachable and washable razor has a unit of detaching blades and a unit of water-proof shells for receiving a battery, a motor, a switch, etc; these two units can be put together or opened to shave off the useless hair on the body of its user, and can be opened and detached to clean off the hair dust in it so that the shaver can be kept neat and save.

Abstract: A branch trimmer comprises a momentum converter for converting rotary motion of the output of a power source into linear reciprocation; a saw blade being slidably reciprocated in a longitudinal direction thereof under the application of power transmitted from the momentum converter; a gear case body for accommodating a base portion of the saw blade and the momentum converter; and a gear case cover for covering a bottom portion of the gear case body. The gear case cover is divided into plural parts, a first divided gear case cover part is formed such that the outline thereof is a slightly larger than the outline of the base portion of the saw blade disposed in the gear case body when the saw blade is maximally extended to its top dead center position thereof.

Abstract: A reciprocating saw blade unit has a pair of upper and lower separable-type saw blades. Each separable-type saw blade has the shape of a long and narrow plate and is composed of: a blade member having an engaging portion; and a power transmitting member which has an engaging portion and is connected to a driving member for slidingly reciprocating the power transmitting member along its longer dimension. The blade members and the power transmitting members are detachably coupled by using the engaging portions. The upper and lower engaging portions are arranged not to be overlapped each other at any event.

Abstract: A device (10) for removing a connecting peduncle (28) passing through a separation slot (42) between two printed circuit boards (26, 27) includes a reciprocating moving element (13) having a cutting face (14) thereon formed on a undersurface of a projection projecting from a shank (2) slidable between a pair of bucking elements (17, 18) facing each other to provide at least in an initial section thereof a seat in which the shank (2) is insertable without play. The transverse dimension of the moving element (13) is such as to be received in a sliding manner guided in the slot (42) to receive the peduncle between its cutting face (14) and the edges of the bucking elements.

Abstract: A scissors action cutter is pneumatically actuated, by a pneumatic actuator that continuously effects reciprocation of a shaft as long as an actuating lever is depressed. The reciprocal shaft is in abutting engagement with, or connected to, an actuating extension of a movable scissors blade pivotal about an axis. The movable blade cooperates with a stationary substantially planar blade, which has a free end. The movable blade thickness is significantly greater than the stationary blade thickness, so that the movable blade does not deflect out of plane, and the stationary blade is deflected out of plane at its free end, biased toward a plane of movement of the movable blade. The blades are mounted on an elongated small diameter, lightweight, cylindrical casing dimensioned to be easily held in a human hand, and the pneumatic actuator is disposed within the casing. A lever operated valve is actuated by the user's hand, exteriorly of the casing, to effect cutting.

Abstract: An adjustable hair clipper including an interconnected body and head mounted about a common pivot for rotational movement between the body and the head, the body including a motor with an associated drive shaft, a reciprocating cutter in the head, an operating shaft for actuating the reciprocating means, gears in the body interconnecting the drive shaft and the operating shaft, the gears being pivotable about the common pivot thereby permitting the drive shaft and the operating shaft to rotate relative to one another as the head and the body are rotated relative to one another.

Abstract: A precision hair clipper for cutting the hair of a subject to a uniform length comprises a housing defining a flow chamber attachable to a vacuum source. At the inlet of the housing a pair of reciprocating blades occupy one side of a quadrangular rim. The blades have rows of cooperating teeth facing the opening of the inlet. A bar commensurate with and parallel to the blade teeth is reciprocally translated across the opening between the teeth and the opposite edge of the rim. Hair drawn through the flow chamber is thus periodically pushed against the shearing teeth. The bar movement is coupled to the blade oscillating mechanism.

Abstract: A hedge trimming tool having a fixed elongated blade mounted to the power head of the tool and a cutting blade mounted over the fixed blade and reciprocating relative to the fixed blade in the direction of the lengthwise axis. A leading side of the fixed blade has projecting fingers or teeth and the overlying portion of the cutting blade has projecting teeth that reciprocate across the openings between the fingers. The reciprocating teeth have sides configured in a complex curve forming an hour glass planar profile and an inverted U-shaped cross section. The U-shaped cross section is provided by curving the sides of the teeth downwardly whereby the teeth sides are angularly projected through the plane defined by the bottom surface of the blade. The cutting edges along the sides are formed by grinding faces through the portions of the teeth projected below the bottom surface of the blade. The faces are formed in a single pass of the grinding implement with the faces parallel to the bottom surface of the blade.

Abstract: A cutting head selectively engageable with a first support tongue having by a pair of ribs disposed on the bottom of the tongue, and selectively engageable with a second support tongue having a substantially planar bottom surface, the cutting head comprising a bottom plate having an upper surface, an upper plate supported by the upper surface, a spring fixed to the bottom plate for biasing the upper plate against the upper surface, and a single tongue-receiving socket for snugly receiving the first support tongue and for snugly receiving the second support tongue.

Abstract: A motor-driven hair cutter is provided with a main cutter and a trimmer at a front end of an elongated housing. Each of the main cutter and the trimmer is a reciprocatory cutter comprising a toothed stationary blade and a toothed movable blade driven to reciprocate in hair shearing engagement with the stationary blade. The trimmer is movable between a retracted position in which a cutting edge of the trimmer is behind a cutting edge of the main cutter and a projected position in which the cutting edge of the trimmer projects forwardly of the main cutter so that the trimmer alone can be used. The trimmer blades are formed to be smaller in thickness as well as in cutting edge width than those of the main cutter blades in order to facilitate a delicate trimming of hairs in a restricted area of a user's head by the trimmer.

Abstract: Disclosed is a mowing apparatus, which includes a pair of first and second cutting members slidably superposed with each other, each of the members including a plurality of aligned cutting teeth; mechanism for moving the first cutting member relative to the second cutting member reciprocably within a predetermined range in the direction of the aligned cutting teeth at a substantially uniform speed; and a drive source for driving the moving mechanism. The moving mechanism includes a solenoid actuator having first and second coils and a plunger provided reciprocatingly movably between the first and second coils. The plunger is connected to the first cutting member.

Abstract: An electrical motor operated clipper comprises a pair of longitudinal blades, wherein a longitudinal movable blade having a rectangular slot on the backward end is tightened to a fixed blade by a machine screw, a locking washer, and a belt-shaped spring. The electrical motor is mounted in a housing. The fixed blade projects from the forward end of the housing. A lever connects the movable blade in the slot to a transmission driven by the output of the motor, and is rotatably mounted in a metal cover which is mounted in the housing. A two-line-teeth comb-attachment can be attached onto the longitudinal blades for guiding the haircut.

Abstract: Disclosed is a heavy-duty plate cutting shear to be carried on an elevated lifting device, comprising a frame with a mounting mechanism for attaching to such a device, a slidable foot affixed on the frame and having an unobstructed base face for engaging and sliding along the plate being sheared, the slidable foot having an elongate slot opening through the base face and also having metal shearing edges at both sides of the slot and adjoining the face, a swingably oscillatable blade having pivot mounted on the foot, the blade being in the slot and extending form the pivot and across the base face, the blade having metal cutting edges confronting and traversing the shearing edges on the foot.

Abstract: A self hair cutting or trimming device comprises an elongated handle housing an electric drive, the drive comprises an elongated spool mounted coil connected in series with a diode. An elongated core is mounted through the coil and connects a movable blade in sliding contact with a fixed blade projecting from the forward end of the handle. Within the backward end of the handle a plastic bolt is threadedly received to adjust the position of the core, and thereby the movable blade, through a spring disposed in between the bolt and the core.

Abstract: A power driven reciprocating blade hedge trimmer includes a speed-reducing gear train with a sun gear, a plurality of planet gears, and a surrounding hollow drum-like orbiting gear element that seals in gear train lubricant and is formed to have an outer peripheral sinuous groove serving as a cam. A pin-engaging, guided, reciprocating cutting blade element of the hedge trimmer is driven by engagement of the pin and the groove shaped cam to produce reciprocating cutting motion aligned with the axis of the rotating power source. Resilient damping elements are affixed to an end of a blade supporting element where it is held by the hand-held portion of the device, to attenuate and isolate undesirable vibrational feedback generated during reciprocation of the cutting blade element.

Abstract: A cutter of standing vegetation having a boom to which is connected at one end a hinge from which projects a reciprocating type sickle, and is suspended centrally from a pivoting handle to which is connected a control rod which runs parallel to the greater length of the boom and is connected in a pivoting fashion to a control lobe which is connected at right angles to the nonmoving part of the sickle. A motor and gearbox assembly which produces reciprocating motion mounted at the other end of the boom, having a reciprocating power-take-off to which is clamped a reciprocating flexible drive shaft which runs to and is clamped upon the moving part of the sickle and is supported, braced, and channeled, by a flexible covering which terminates in two extension points, one of which is near the reciprocating power takeoff, the other of which is near the moving part of the sickle, which terminates in another reciprocating power-take-off to which a detachable saw blade is mounted.

Abstract: This invention concerns about an electric hair comb-clipper. It mainly uses a magnetism generator which, by its two magnetic poles, changes the polar of the two poles when AC current is on, enabling the swing block with two poles to swing up and down forcing a movable clipper blade to move back and forth straight as well. Below the movable blade, a comb is attached to the base for combing hair; after hair has been combed by the comb, the base is turned around for 90 degrees to have hair cut off by the movable blade.

Abstract: A cutter bar assembly is suspended from an overhead arm carried by an operator mounted back pack structure. A flexible coupling carries the cutter bar assembly in a manner causing the assembly to assume a position inclined from the vertical for the trimming of Christmas trees. An engine and transmission are mounted on the cutter bar assembly with motion being imparted to the cutter blades by angular connector plates. A handlebar is attached to the cutter bar assembly in a manner offsetting the latter to one side of the operator for minimal operator contact with the vegetation being trimmed. A modified form includes an engine on the back pack with a flexible drive line to a transmission in place on the cutter bar assembly. Engine controls are in place on a drive shaft coupling.

Abstract: In the following is described a guard device (11) for hedging shears, which have two cutter bars (13, 12) which are arranged parallel one above the other and are reciprocable relatively to one another, at least one of which bars is driven. To avoid the danger in the use of hedging shears (10) which might arise as the result of contact with the ground by the movable cutter bars, the leading ends of the two cutter bars (12, 13) is provided with a guard element projecting beyond it in the longitudinal direction and adapted to be fastened to a fixed structural part of the hedging shears (10).

Abstract: A hair-cutting device comprises a stationary cutter; and a drivable cutter reciprocatingly movable with respect to the stationary cutter, each cutter being provided with teeth extending substantially at right angles to the driving direction. Each tooth of the drivable cutter is formed at the free end of a flexible arm, the respective flexible arms being spaced from each other to provide a slot between each pair of adjacent flexible arms. A rigid pressure element is located adjacent to and within the range of elastic deflection of the free ends of the respective flexible arms. The opposite end of each flexible arm is connected to a common cutter beam, the respective flexible arms and the cutter beam being integrally formed in one piece from a flexible sheet material.

Abstract: A powered hair clipper for use in cutting human hair is disclosed. The clipper comprises a tubular housing defining a handle to be grasped by a skillful hand of an operator and having a power driven cutter assembly at its forward end. The housing is provided with finger hooking means projecting outwardly and radially from the rear portion thereof so as to receive therein at least one of the middle, ring, and little fingers of the same hand grasping the clipper. With the help of the finger hooking means, the operator can carry the clipper by one or more fingers of his skillful hand such that the operator has no necessity of turning aside the clipper at each time when the same skillful hand takes over the handle a comb for arranging straggled or disordered hair strands prior to the trimming operation of advancing the clipper.

Abstract: A power operated tool (20) functions to cut and collect a multitude of precious metal contacts (11,11) from wire spring relays (10). The tool (20) includes a pair of jaws (31,32) that in the open position fit over several rows of contacts (11,11). When the tool (20) is energized, the jaws (31,32) are snapped shut thereby severing the contacts (11,11) from the relays (28). The jaws (31,32) in the closed engaged position define a closed chamber (41) having a port (44) for attachment to a vacuum source for sucking the severed contacts (11,11) into a collection vessel. The jaws (31,32) reopen following collection and the tool (20) is ready to cut the next set of spring contacts (11,11).

Abstract: The blade part assembling structure for electric shaver of this invention comprises fitting pins which are rotatably fitted to a blade mounting base, a movable blade mounted on the base in the first rotating positions of the fitting pins, and a stationary blade mounted on the base in the second rotating positions so that, in the case of dismounting the stationary blade, the movable blade will be locked with the fitting pins in the rotated positions of the fitting pins and any occurence of troubles during disassembling and re-assembling of the blade part by the user can be avoided.

Abstract: There is provided a hair trimming device comprising a stationary cutting element and a cooperating second cutting element. Each cutting element has a longitudinally extending side provided with spaced teeth extending in a direction substantially transverse to such side, the second cutting element being drivable relative to the stationary cutting element in such transverse direction. Each tooth of the drivable cutting element cooperates with a corresponding tooth of the stationary cutting element to form a pair, with the teeth in each pair partially overlapping each other. A recess is formed in at least one side edge of each tooth of one such cutting element, with at least part of the recess edge constituting a cutting edge. Each tooth of the other such cutting element has a cutting edge, the cutting edges on the teeth of each pair cooperating with each other.

Abstract: A hair clipper utilizes a vacuum source to draw hair into a substantially enclosed flow chamber where the substantially parallel hairs are cut by a shearing blade which moves perpendicularly across the hair flow to cut the hair to precisely equal lengths which are necessary in certain hairdos.

Abstract: A shearing handpiece comprises a body having a cutter arm pivotally mounted thereon between coaxial laterally arranged cylinders each fitted with a plunger which transmits inward movements to the cutter arm by an intervening connecting rod. One at least of the cylinders forms a part of a hydraulic slave motor and the plunger of the other cylinder is preferably constantly urged inwardly by a spring.Each connecting rod preferably has at each end thereof a semi-spherical head which seats in a corresponding socket in the arm or in the respective plunger as the case may be, these connecting rods being retained in position by the spring.The slave motor is operable by successive pulses imparted thereto through a flexible connecting tube by a hydraulic pulse generator comprising at least one master cylinder fitted with a power operated master plunger and the handpiece is provided with a control valve operable to isolate the slave motor from the tube.

Abstract: Apparatus for shearing sheep and other animals comprises a handpiece provided with a reciprocating fluid operated motor, the reciprocating element of which directly actuates a transversely oscillatable cutter operating member. The handpiece is connected by flexible tubing to power generating means by which successive pressure pulses are imparted to the fluid, preferably a hydraulic fluid, such pulses being transmitted through the tubing to the motor so that the cutter operating member of the handpiece is oscillated in unison therewith. The said power generating means preferably comprises a master cylinder which communicates with a hydraulic fluid reservoir which maintains the system full of fluid and said pressure pulses are produced by a plunger which is reciprocated in the master cylinder by power operated means.

Abstract: A reciprocating cutter type trimmer having reciprocative blades, each blade is divided into a power transmission member and an edge member, and the edge member has, at its longitudinally opposite ends, fitting parts so as to be removably mountable to a fitting part provided for the power transmission member.