Abstract: A control lever is driven by a driving unit to cause variation in tension of a coil spring and therefore variation in force with which a wiper blade is pressed against a windshield. The driving unit is disposed in an arm head and includes a geared motor, a male screw member in the form of a bolt and secured to an output shaft of the geared motor and a female screw member having an internally threaded socket portion screwed onto the male screw member and a sliding portion in the form of a rectangular bar and installed in a guide member for longitudinal movement but against rotation. The output shaft of the geared motor, male screw member and the female screw member are so arranged as to have axes in line with each other and exending longitudinally of the arm head.

Abstract: A toothbrush having a pad of bristles, a neck region and a handle is disclosed. The bristle pad has three longitudinally arranged columns of bristles, except at the distal end of the pad where there are two additional columns of bristles. The handle is short, so as to bring the user's hand into a closer relation to the mouth and teeth. The reverse side of the bristle pad has a concavity for receiving the user's finger.

Abstract: A toothbrush for efficient cleaning of the teeth, the area under the sulcus and between the teeth and for massage and stimulation of the gums, has a plurality of spaced longitudinally extending rows of bristles in center and outer rows extending from the brushhead. The bristles of the center rows extend perpendicularly to the brushhead and the bristles of each of the outer rows are inclined in different directions relative to the bristles of the center rows. The bristles of each of the outer rows are inclined in one direction from approximately the center of the row to one end thereof and in the opposite direction from approximately the center of the row to the opposite end thereof. Each of the one and opposite directions is away from a normal line at approximately the center of the row. The bristles of the outer rows may also be inclined away from the planes of the bristles of the center rows.

Abstract: The invention relates to a wiper system for motor vehicles or the like, comprising at least one wiper arm guided and actuated in a complex movement by a kinematic chain or mechanical linkage which comprises a first bar (2) actuated in an oscillating movement by a motor (63), a second bar (3) pivotally connected (23) to the first bar (2) and rigidly attached to the wiper arm, a third bar (4) articulated (34) to the second bar (3) and a fourth bar (5) secured to the vehicle body at one of its ends and torically connected to the third bar (4) at the other of its ends, said toric connection being materialized by a joint (45) made of an elastomer material. The kinematic chain and wiper arm are driven by a second kinematic chain or mechanical linkage which comprises a motor (63), a crank (64) and bar (65) with the bar (65) being pivotally connected to bar (62) rigidly connected to pivot shaft (61) connected to first bar (2).

Abstract: In a reciprocating wiper system for motor vehicles with a piston adjustably guided in a housing a slide fixed on the housing in a torsionally firm way is provided as a protection against twisting, the slide is longitudinally guided on a guide element fixed to the housing. To compensate for unavoidable tolerances of position and shape of the guide elements and the slide a calotte-shaped bearing body is fittingly guided on the guide element. The bearing body is movably mounted with play in the radial direction in a calotte-shaped receiver on the slide.

Abstract: A rotary windshield wiper having wipers mounted to rotate and flex so that rotational loci of the wipers on the portions the windowpane are curved downward, whereby the rotary window cleaner is constructed so that it can be installed in front engine type automobiles.

Abstract: A device for cleaning a chimney flue having four side walls which comprises a rigid enlongated shaft, a fixed mounting plate means attached at one end of said elongated shaft, four scraping blades attached to said mounting plate means so as to collectively define a substantially rectangular or square perimeter, each of said blades having a scraping end and a fixed end pivotably attached to said mounting plate means remote from said scraping end, and means attached to said shaft within said perimeter for expanding and contracting said blades to permit cleaning of said four side walls of said flue at the same time.

Abstract: A vehicle windshield wiper, whereby a blade is supported on a lever member hinged to a fixed support and designed to swing about a pin by virtue of a linear actuator, an output member of which consists at least partially of a screw connected to an electric motor having a hollow shaft, by means of a circirculating-ball screw-nut screw coupling, and extending through the motor itself.

Abstract: A paint scraper for removing paint from wooden or other soft surfaces without damage to such surfaces includes a shaft and a blade oriented at a slightly obtuse angle with respect to the axis of the shaft and a concave deflecting shank extending from a blade support portion to a handle portion for guiding peeling paint away from the vicinity of the blade. The blade is relatively sharp and thin, but is kept from oscillating by the support portion of the shaft which includes a lip which allows attaching parts to prestress the blade so that it remains stiff.

Abstract: A device for controlling the diameter of cylindrical sections of a rotating calender roll. The device comprises at least one nozzle which directs a jet of air against the calender roll. The flow of air from each nozzle remains approximately constant. Only the temperature of the jets change as heating elements associated with each nozzle are energized or deenergized. Thermal expansion or contraction, resulting from localized heating or cooling by the air jets, corrects local non-uniformities in the calender roll diameter.

Abstract: An ultrasonic wiper for conveying a fluid off of a windshield glass of a vehicle characterized by comprising ultrasonic oscillators which excite progressive waves in the glass in a predetermined directional movement.

Abstract: Herein disclosed is a wiper blade which is constructed to suppress or at least minimize undesirable wiper blade floating phenomemon which would occur during high speed cruising of a vehicle in the rain. The wiper blade comprises a main lever detachably connected to a wiper arm and having a longitudinally extending ridge portion, sub-levers aligned along the main lever and pivotally connected to the same, and an elongate blade rubber held by the sub-levers and extending along the main lever. The main lever is formed with a substantially flat wall which extends from one side of the ridge portion toward the blade rubber to such a degree as to partially cover the same, and the ridge portion is formed with a plurality of openings.

Abstract: A toothbrush comprising five or seven rows of tufts of soft filaments or bristles of which the middle row of bristles is higher than the rows of tufts of bristles on each side. The middle row performs the special task of cleaning the gum line or sulcus while the rows on each side alternately, as used in various positions in the mouth, either clean the teeth themselves or support and massage the gum tissue.

Abstract: A round baler is provided which comprises a bale chamber which is expandable between a bale start position and a full bale position and which comprises a first bale-forming means disposed generally circumferentially around a portion of the full size bale chamber when the baler is in its bale-forming condition, and a second bale-forming means which is movable relative to the first bale-forming means between two extreme positions. The second bale-forming means is cooperable, in one extreme position, with the first bale-forming means to form the bale start chamber of reduced dimensions for starting bale formation, and, in the other extreme position, with the first bale-forming means to define a generally cylindrical bale chamber generally corresponding to a full size bale. The first and second bale-forming means are cooperable to form a round bale of crop material during movement of the second bale-forming means from the one extreme position towards the other extreme position.

Abstract: A windshield wiper device of an automobile comprises a wiper arm, a wiper blade supported by the wiper arm and having an elastic blade element for wiping a windshield, an engaging member attached to one of the wiper arm and the wiper blade and having first, second and third contacting portions, and a blade lifting member mounted on the body and having a guide portion for guiding the first contacting portion of the engaging member to run thereon, a stopper portion succeeding to the guide portion for coming into contact with the second contacting portion of the engaging member to cause the engaging member to stay at the stopper portion so that the wiper blade is lifted to keep the elastic blade element away from the windshield, and a holder portion for coming into contact with the third contacting portion of the engaging member to hold the engaging member thereby so that the wiper arm is fixed in position to lift the wiper blade from the windshield when it is mounted on the body of the automobile.

Abstract: A round baler is provided which comprises a bale chamber which is expandable between a bale start position and a full bale position and which comprises a first of bale-forming means disposed generally circumferentially around a portion of the full size bale chamber when the baler is in its bale-forming condition, and a second bale-forming means which is movable relative to the first bale-forming means between two extreme positions. The second bale-forming means is cooperable, in one extreme position, with part of the first bale-forming means to form the bale start chamber of reduced dimensions for starting bale formation, and, in the other extreme position, with the first bale-forming means to define a generally cylindrical bale chamber generally corresponding to a full size bale. The first and second bale-forming means are cooperable to form a round bale of crop material during movement of the second bale-forming means from the one extreme position towards the other extreme position.

Abstract: A swiveling, position-maintaining scrubbing brush is provided with a pivot body joined to a handle and having pivot members engaging bosses on the brush body. Means, exemplified by a wedge received in a cut in the body, are provided to spread apart the pivot members and to thus adjust the resistance to swivel movement of the brush body.

Abstract: A push broom having a head formed from a bristle strip or strips of the type consisting of a channel with U-shaped bristles extending downwardly therefrom and bent into an oval formation with curved ends. The curved ends receive complemental curved clips which are slipped downwardly over the curved channel ends and are clamped thereto. The clips may have depending flanges which overlap the upper portions of the bristles. A reinforcing member may be inserted and clamped in the oval formation. Also a special strong connection may be provided to connect the handle to the head.

Abstract: A device for cleaning the top surface of beverage cans is formed from a circular disk provided with symmetrical openings and has a plurality of bristles extending downwardly from a bottom surface thereof. A cylindrical sidewall surrounds the bristles and a bottom circular edge of the cylindrical sidewall extends downwardly past the ends of the bristles. First and second radially spaced circular brush portions are formed of a diameter to engage the gutters formed on two different standard beverage cans. Radially extending brush portions are positioned to clean the flat top surface of beverage containers. In use, the circular plate is placed on top of a beverage can, with the bristles extending downwardly and engaging the top surface of the beverage can. Water is then allowed to run through the openings, while the circular plate is rotated back and forth with the bristles in engagement with the beverage can. This results in a thorough cleaning of the top surface of the beverage can.

Abstract: An improved toothbrush having a handle and two sets of bristles; one set of bristles being disposed on each end of the handle. One set of bristles is configured as a conventional toothbrush and may, thus, have any one of a number of combinations of bristles and shapes for performing routine dental hygiene. The other end of the brush is unique in both the configuration of the supporting portion of the handle, the crescent configuration of the bristles and the articulation (pivoting action) of the crescent-shaped toothbrush relative to the handle. This portion of the handle is further modified (curved) to support the crescent-shaped bristle as to place them in opposing relationship to the inside surface of the user's teeth. This is achieved without any strain or unorthodox positioning of the brush by the user. Since the crescent-shaped toothbrush is able to articulate (pivot) relative to the handle, it is equally effective in cleansing all inside surfaces of the teeth, not simply the front teeth.