Abstract: In a hairbrush having a base portion for implantation of bristles and a grip portion, bristles are implanted to extend from a center axis in the radial direction viewed in a cross-sectional plane of said implantation portion, in such a fashion that the curve defined by the tips of said bristles describes an arcuate shape, the curve defined by the tips of said bristles is arcuately recessed in a cross section in the longitudinal direction, and the axis of rotation of said grip portion in the longitudinal direction is in parallel with the center axis of said bristles and is spaced apart therefrom by 5 to 15 mm on the side of said bristles.

Abstract: A device for applying surface pressure to an advancing plate-shaped workpiece comprises two endless pressing belts positioned at two opposite surfaces of the advancing workpiece, and two pressure plates spaced from the respective pressing belts and forming pressure chambers containing pressure medium which presses the working strands of the pressing belts against the opposite surfaces of the advancing workpiece. Each pressure plate has a groove engaging an elongated hollow hose filled with the pressure medium and supported against the working strand of the respective pressing belt and limiting the pressure chamber.

Abstract: In a toothbrush having a pair of adjustable bristle-mounting tabs which pivot relative to the bristle-mounting base so that the bristles mounted on the tabs may deflect in order to conform to varying tooth surfaces, a metal plate formed within the head of the toothbrush has opposite lobes thereof which extend into and form part of the tabs to provide better hinging action for the tabs and to prevent the tabs from breaking off and possibly being swallowed. The toothbrush is made using an injection mold, the lower half of which has a pair of dowels which are inserted in apertures within the opposite lobes of the metal plate to initially position the metal plate therein. The lower half and an opposite mating upper half together provide opposite mating pins which engage the opposite sides of the metal plate so as to precisely position the plate within a cavity defined by the joined opposite halves of the mold.

Abstract: An apparatus for dehydrating a crude veneer includes a pair of spaced parallel rolls each being provided with teeth on the periphery thereof which become sequentially aligned with those of the other roll as the rolls are rotated in opposite directions to each other. A veneer is passed through the gap between the rolls to efficiently squeeze out water while being subjected to a minimum of plastic deformation. This is accomplished by optimumly selecting the distance between the tips of the teeth on the two rolls as well as the distance between the peripheries of the rolls except for the teeth. The periphery of each roll is covered with an elastic material such as sponge in order to prevent water once pressed out from the veneer by the teeth from permeating into the veneer again.

Abstract: A combination base board/corner and floor brush holder is provided for simultaneously cleaning or polishing the base boards and floor. The device consists of a circular pad for removable attachment to bottom of the holder for use on a floor and a plurality of brushes for removable attachment around perimeter of the holder for use on a base board of a wall. A flexible cover is removably attached over the holder to keep the brushes in proper position when the holder rotates when used. A longer softer brush may be installed so that bristle will reach to a corner apex between wall at right angles to each other.

Abstract: An interdental toothbrush has a handle made from a mixture of a thermoplastic elastomer and a general purpose polypropylene. A twisted wire brush projects from the handle in axial alignment therewith. The toothbrush can be held within a loosely clasped fist, with one end of the brush held between a thumb and an index finger. By manipulating the thumb and index finger, the angle at which the brush projects may be changed at will. In this way, the insertion of the brush in more difficult to reach spaces in or around teeth is more easily performed.

Abstract: A supporting frame includes a pair of press bars adjustable fore and aft and being positionable in an upper or lower position relative to the frame. A hydraulic press head assembly is supported above the press bars and is manually operable to engage a work piece supported by the press bars. The hydraulic press head assembly includes a manually operated pump, a release valve, a relief valve and an oil reservoir all supported upon the upper end of a press frame. The entire assembly is designed to be supported on a conventional work bench or on its own work bench as desired.

Abstract: A retractable wiper apparatus is disclosed in which two cam members are mounted about a drive shaft, the cam members serving to retain a detent in a locked position during rotation of the drive shaft in the forward direction and during the wiping operation. Upon reversal of the drive shaft rotational movement, the detent is released by the cam members and the wiper is placed in a retracted position.

Abstract: The invention concerns a system for keeping windshield wiper blades free of ice or snow accumulation. A rectangular strip of transparent material is either affixed to or formed integrally with the windshield to extend outwardly from the surface thereof for a distance of 1/16". The strip is about the same length as the wiper blade and one inch wide. It is positioned with the longitudinal edges parallel to and the lower edge spaced 2" from the rest position of the wiper blade, whereby the blade wipes over both longitudinal edges of the strip in each direction on every cycle of reciprocating blade movement. The dimensions of 1/16" in thickness, 1" in width, and 2" spacing from the blade have been found to provide superior results in optimum blade cleaning with minimal wear on the blade edges, and are therefore considered critical dimensions.

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: A calender wherein a permanently installed main roll cooperates with at least one exchangeable roll to provide a nip for the passage of a web of paper or the like. The end portions of the exchangeable roll are mounted in bearings which are insertable into and extractible from sockets provided in levers which are pivotably mounted in the frame of the calender. The calender has a transporting unit which is provided with grippers for the bearings and with motors which reciprocate the grippers to extract the bearings from their sockets after the levers are pivoted to positions in which the exchangeable roll is spaced apart from the main roll. The transporting unit thereupon transfers the exchangeable roll onto a mobile rack which can be transported to a station where the exchangeable roll is repaired.

Abstract: A hair brush having bristles attached to a member which is rotatable with respect to a handle, together with a method of making and assembling a hair brush comprised of only two separate members, is disclosed. A surface on the member is provided between the handle and the bristles. The person holding the handle may apply force with a finger or thumb against the surface to brake as desirable relative motion between the handle and the bristles. A mechanical braking mechanism for providing a constant drag on the relative motion is optional.

Abstract: Apparatus and process for compressing moisture containing material including a pair of opposed rolls for receiving and advancing the material therebetween to apply rolling load thereto to compress the material and remove at least a portion of said moisture therefrom, and differential means for causing one of said rolls to rotate at a lower speed than the rolling speed of the other of the rolls, the differential rolling speeds developing friction between the rolls causing the rolls to be heated and apply heat to said material to further remove moisture therefrom, to cause the compressed material to adhere to the one roll and to cause the removed moisture to adhere to the other roll, also alone and in combination, apparatus and process of decomposing organic material such as an animal biomass by the action of aerobic microorganisms in the presence of oxygen, including introducing the organic material into a container having an end adapted to receive the organic material and an output end adapted to discharge th

Abstract: A cylindrical bale forming machine has a bale transfer unit yieldably maintained in a transport or rest horizontal position located below the bale discharge gate to receive a bale discharged from the machine for transfer to a ground location rearwardly clear of the discharge gate. The transfer unit is operated in response to the movement of the discharge gate into its open or bale discharge position and is returned to its rest position in response to movement of the discharge gate out of the open position therefor.

Abstract: The wiper arm is fixedly connected with a rod of the five-link linkage, the transmission members of which include a frame stationarily arranged with respect to the body of the vehicle, a swinging member connected with the frame, two rods connected with one another, the first one being also connected with the swinging member, and a swinging lever connected with the frame and with the second rod, this swinging lever being driven by the pushing crank transmission. In this spatial five-link linkage, the hinges connecting the swinging member and the swinging lever with the frame are formed as pivotal connections, the hinge connecting one of the rods and one of its adjoining members is a spherical one, and the hinge between this rod and its adjoining member is formed as a pivotal connection, the axis of which is obliquely located with respect to the axis of one at least of the other pivotal connections in the linkage.

Abstract: A toothbrush wherein the front end face of the handle has a flat projection which is receivable in a complementary socket in the adjacent end face of the detachable bristle carrier and the projection is integral with an arrowhead-shaped male detent which is detachably snapped into a recess extending from the socket into that surface of the carrier from which the bristles extend.

Abstract: A winter wiper blade consists of an articulated plastic frame, a rubber boot enclosing the frame and an external wiper blade element. The frame consists of a primary yoke and pairs of pivotable center and end yokes, each having a respective claw thereon for support of a backing strip, in turn slotted to receive the anchoring bead of the rubber wiper element. A pair of end caps, each having spring arms thereon and a further claw are adapted for interlocking engagement in a groove at the outer end of the end yoke to support the tip of the wiper element. Each end cap includes extensive surface area to engage and seal with a conforming shaped end channel portion of the rubber boot. A u-shaped saddle is disposed at the central portion of the primary yoke over the rubber boot for receipt of a wiper motor arm and is uniquely mounted by transverse rivets to facilitate assembly thereof.

Abstract: A drum press with a rotating dewatering drum, inside which is eccentrically located a press roll of which the outer surface together with the inner surface of the dewatering drum defines a press gap compressing mass, such as bark, and in conjunction with the dewatering drum a removal screw is provided which detaches the mass that has been pressed to adhere to the inner surface of the dewatering drum and removes it for the next treatment step. The portion of the removal screw which is used to detach the pressed mass comprises a separate screw section removably disposed on the shaft of the removal screw and which is replaceable with ease.

Abstract: In a belt press of the type used to dewater heavy slurries, an improved belt drive system is provided. The upper belt is driven by at least two rollers, one of which is situated in the dewatering section wherein the upper and lower belts are squeezed and traveling together. The improved drive arrangement provides a more uniformly increasing tension in the belt as it passes through the dewatering section than in such presses heretofore. Further because the lower belt is at least partially driven by its frictional engagement with the upper belt, through the sandwiched slurry, the synchronization of the belt speeds is improved. Further improved control of the belt press performance is provided by means for sensing the speeds of the belts and responsive means for regulating the belt tensioning systems accordingly.

Abstract: An oral hygiene device for mounting on and manipulated by a user's finger comprises a stem, an oral hygiene working head and a clamp for mounting the device on a user's finger. The working head is provided at one end of the stem and the mounting clamp provided at the other end of the stem. The stem includes a stepped portion between the working head and the mounting clamp to elevate thereby a portion of the stem provided with the working relative to the clamps so as to provide a working head essentially as an extension of the finger. The clamp may be formed of plastic having two pairs of opposing lugs. The plastic may be sufficiently resilient to conform to the shape of the user's finger to ensure an adequate secure mounting of the finger. The oral hygiene device of this construction provides a new mode for the delivery of improved oral hygiene to facilitate a quick and accurate arrival at predetermined destinations of the gum tooth junction.