摘要:
An apparatus for cutting fiber-cement siding. A fiber-cement siding cutting tool in accordance with the invention may have a hand-held motor unit with a housing, a motor inside the housing, and a switch operatively coupled to the motor to selectively activate the motor. A head having a casing may be attached to the housing of the motor unit The head may have a reciprocating drive assembly coupled to the motor. The hand-held cutting tool also has a blade set with first and second fingers attached to either the casing or the motor housing, and a reciprocating cutting member between the first and second fingers. The first finger may have a first guide surface and a first interior surface. Similarly, the second finger may have a second straight guide surface and a second interior surface. The reciprocating cutting member has a body and a blade projecting from the body. The blade has a first side surface facing the first interior surface of the first finger, a second side surface facing the second interior surface of the second finger, and a top surface. The first side surface of the blade is preferably spaced apart from the first interior surface of the first finger by 0.040-0.055 inches for cutting ¼ inch and {fraction (5/16)} inch thick fiber-cement siding. Similarly, the second side surface of the blade is spaced apart from the second interior surface of the second finger by 0.040-0.055 inches for cutting such fiber-cement siding. The distance between the first and second side surfaces and the first and second finger, respectively, may be approximately 13%-22% of the thickness of the fiber-cement siding workpiece.
摘要:
An electric toothbrush comprised of a handle and a neck; the handle containing a swing link connected to a motor and a cell cabinet; the neck also containing a crank to drive a brush head and another swing link abutted to its counterpart in the handle characterized by that a rotor being inserted to the motor shaft; a U-shape member inserted to the swing link in the handle; the U-shape member being engaged by friction due to reciprocal impact from the rotor thus to drive the swing link in the neck; and the crank further driving the brush head to execute lateral swing at an angle of thirty degrees to achieve the optimal tooth brushing effect.
摘要:
A sweeping unit has a supporting frame and at least one motor-driven rotary brush which is rotationally mounted about an longitudinal axis thereof The supporting frame is provided with supporting wheels, and a distance of the wheels from the axis of the rotary brush is controlled by an adjusting device having at least one hydraulic adjusting cylinder and a control device. A supply cylinder is hydraulically connected to the at least one adjusting cylinder and has a piston, or other signalling component, connected to a metering device and/or distance measurement device. A signal from the metering and/or distance measurement device is connected to the control unit. A working area of the supply cylinder communicates hydraulically with the at least one adjusting cylinder and has a smaller cross-sectional surface area than that of the at least one adjusting cylinder. Alternatively, the piston of the supply cylinder is connected to a mechanical adjusting drive mechanism.
摘要:
An electric toothbrush having a detachable brush head assembly including a driven shaft that is driven by a driveshaft disposed with in a housing. The driveshaft is part of or secured to a torsion bar that supports an armature including a pair of magnets. An electric coil receives an alternating flow of current at a predetermined frequency that causes the magnets to be alternately attracted to the coil and causes the torsion bar to oscillate in an oscillatory rotary motion.
摘要:
This invention provides an ultrasonically driven nail cleaner, where the ultrasonic frequency both loosens hand and nail soil, as well as providing motion to at least a pair of brushes for removing the soil from the user's hands and nails. The moving force for the brushes and the ultrasonic loosening action are enabled by linkages providing straight line bilateral motion for both of the brushes. A rechargeable battery and a battery charger are provided for multiple uses for the structure provided, without the necessity of an AC outlet proximate the user.
摘要:
An optical connector cleaning device for cleaning a ferrule end surface of an optical or fiberoptic connector is described. The device includes a cleaning rod, a drive mechanism, and a cleaning media, such as a swab, a brush, a pad, or a foam, connected to an end of the cleaning rod and having a thickness past the end of the cleaning rod of at least about 0.125 inches. A mating connector housing the cleaning rod may be provided for connecting with the optical connector. The drive mechanism may be housed in a handheld body or may be mounted on a dummy card connector physically compatible with a slot in a card-cage. The dummy card connector may include an adjustable frame which can be adjusted to modify card size in order for the same dummy card connector to be physically compatible with more than one physical slot configuration.
摘要:
An electric toothbrush includes a handle, a brush head defining a brushing plane, and a guide arrangement supported by the handle and, in turn, supporting the brush head to undergo movement along an endless path of revolution having an axis extending substantially parallel to the brushing plane such that the brushing plane is maintained in the same orientation relative to a surface of a set of teeth throughout movement of the brush head along the endless path of revolution.
摘要:
Disclosed is a toothbrush. The toothbrush comprises a toothbrush body having a handle and a first vibration generating section and possessing a first groove which has substantially a U-shaped contour; an intermediate engaging member detachably engaged into the first groove of the toothbrush body, having substantially a U-shaped configuration, and possessing a second groove which has substantially a U-shaped contour; a bristle holder having anchored thereto a plurality of bristles, the bristle holder including a teeth cleaning section and a tongue cleaning section; the teeth cleaning section being detachably fitted into the second groove of the intermediate engaging member, having substantially a U-shaped configuration, and possessing a third groove which has substantially a U-shaped contour to receive therein upper or lower teeth of a person; and the tongue cleaning section integrally coupled to a curved portion of the teeth cleaning section for removing a coating existing on a surface of the tongue of the person.
摘要:
A powered toothbrush to provide oral hygiene having a brush section with a first bristle carrier that is powered and driven to rotate in a first path of motion. A second bristle field including a plurality of brush elements extends from a base support of the brush section. An extension member having an end attached to the first bristle carrier and extending outwardly therefrom and at least partially into the second bristle field is also provided on the brush section whereby the extension moves upon movement of the first bristle carrier in the first path of motion to move the second bristle field in a second path of motion. The bristle fields may include a variety of elastomeric and/or non-elastomeric bristles to provide cleaning, polishing, whitening and stimulation to the teeth and gums.
摘要:
A method and apparatus for cutting a fiber-cement material. An apparatus in accordance with one embodiment of the invention includes a blade assembly having an alignment member with a first finger portion and a spaced apart second finger portion. Each finger portion has a guide surface and the two guide surfaces define a guide plane. A reciprocating cutting member is pivotably coupled between the finger portions and is moveable relative to the finger portions transverse to the guide plane between a first position and a second position. The cutting member has a blade portion with outwardly facing side surfaces that have a first axial dimension when intersected by the guide plane with the blade in the first position and a second axial dimension, approximately equal to the first axial dimension, when intersected by the guide plane with the blade in the second position. The cutting tool can cut the fiber-cement material along an arcuate path having a radius approximately equal to the first and second axial dimensions.