Abstract: A sweeping machine is disclosed including a planar pleated filter and a striking mechanism for removing collected dust from the pleated filter. The striking mechanism includes an elongated strap which overlies the pleated filter. A rotatably driven eccentric weight drives the strap to strike the upper surface of the pleated filter.

Abstract: A method and apparatus for scaling a fish by hand is disclosed wherein the apparatus includes a handle and a scraping element connected to the handle. The scraping element includes at least one row of serrated teeth projecting from a surface of the scraping element. A relatively large water conducting tube is fixed with respect to the handle. At least one relatively small tube projects from the relatively large water conducting tube and is positioned on the scraping element adjacent to the at least one row of serrated teeth. The relatively small tube includes a plurality of angled holes from each of which a jet of water issues to wash the fish being scaled. A valve in the relatively large water conducting tube permits a user to regulate a flow of water through the large tube.

Abstract: A card has a frame including two parallel-spaced, rigidly supported side walls having lateral surfaces, a lickerin and a doffer disposed between the side walls and mounted on the lateral surfaces thereof; and carding organs situated between the lickerin and the doffer. At least some of these carding organs are, with their lateral end faces, disposed immediately adjacent the lateral surface of the respective side wall and are laterally mounted on the side walls.

Abstract: Apparatus for feeding fibres, and particularly worsted fibres to a carding machine that may be a conventional worsted card or conventional cotton card. The apparatus comprises a stationary feed plate (1), a rotatable feed roller (2) and a rotatable takerin (3) for carrying fibres from the feed roller and transferring them to the surface of a carding cylinder. The surface of the takerin is furnished with pins at a pin density of not more than 36 pins per square inch (5.58 pins per square centimeter) and the distance (B) between the feed plate and the envelope of the tips of the pins on the takerin is from 0.3 to 0.75 inch (0.76 to 19.5 mm). Using this low pin density and wide spacing between the feed plate and the envelope of the pin tips effects excellent cleaning of worsted and other long staple fibre before it passes to the carding cylinder.

Abstract: A process and mechanism for the dry screen forming of fibers to attain a dispersion in air of substantially individual fibers from which a fibrous sheet is formed. Fibrous nits, pills and flocs are removed from the dispersion by rolling the nits, pills and the like into elongated shapes as they pass a fiber screening member and carrying the elongated fibrous bodies from the dispersion of fibers and away from the sheet forming area for the fibers. The mechanism includes a fiber screening member, a fiber receiving member on which the sheet is formed and a foraminous member which rolls the nits, pills and the like between it and the fiber screening member as the air dispersion of fibers passes toward the fiber receiving member.

Abstract: A pair of devices mountable on a shoe for anchoring a center of a shoe lace, each device, in one design, including a leather pad affixed to the shoe and a removable cap being attached on top of it by means of a tongue and clamp securement, the shoe lace being laid across the clamp before the cap is attached.

Abstract: Synthetic thermoplastic fibers are produced by drawing the fibers, applying a finishing agent to the drawn fibers, and crimping the fibers in the presence of steam in a crimping zone wherein there are present a defined first region of low but increasing steam pressure, a defined second region of substantially constant, relatively high steam pressure, and a defined third region of decreasing steam pressure. Superior crimped products are obtained having a more permanent bulkiness which resists deterioration during further processing and subsequent use.

Abstract: A blank for a stone setting comprising a base and prongs extending radially therefrom, said blank having a planar lower side and a notched upper side, the notches at the upper side defining at the junctions of the prongs with the base hinges which enable bending the prongs upwardly relative to the base to form a stone cage and at the distal ends thereof a seat for the stone and tangs for fixing the stone against the seat. A method of making a setting including making the blank by striking it from malleable sheet metal, removing parts of the sheet metal from around the bank, stripping the blank from the sheet metal, using a punch to force it into a die for bending the prongs and tangs at their notched areas to shape it into a cage. A further method of setting a stone by seating a stone against the seat at the top of the cage and bending the tangs against the stone.

Abstract: A machine for preparing and introducing closure sliders inside annular hollow members for producing spring safety catches for necklaces and the like, consisting of two operative unitsets, each comprising a table rotatably mounted about a vertical axis and actuated by means for rotating the table intermittently through angles of 90.degree. and carrying four radially reciprocating pliers units spaced apart from each other of 90.degree.

Abstract: A heat exchanger assembly of the type having a heat transfer core element which includes a plurality of fins in parallel stacked relationship for defining heat transfer surfaces and a plurality of fluid carrying tubes extending transversely through the fins for defining a fluid circuit, the assembly including at least one tube-to-tube joint, the improvement comprising a solderless connection at the tube-to-tube joint wherein one of the tubes includes an end having an annular, outwardly extending shoulder followed by an inwardly tapered flared portion for receiving the outwardly tapered portion of the other portion and the other of the tubes including an end having an outwardly flared portion for receiving the outwardly tapered portion of the other tube end and an inwardly directed flange clinched over the shoulder of the other tube end to produce a solderless mechanical connection between the two tubes.

Abstract: An apparatus is disclosed for riveting two elements together utilizing upper and lower plate fastener portions wherein means are provided for securing the lower plate fastener portions in an aligned relationship with an underlying anvil base. Also provided are means for securing the upper plate portions aligned with the lower plate portions and the two elements therebetween while the rivets are driven.

Abstract: A torque adapter apparatus for threading an externally threaded base member aving a smooth bore rear end to an internally threaded tubular projectile housing. The adapter utilizes a biased pegged locking plate member to initially retract a plurality of peripherally positioned friction camming elements to permit insertion of the adapter within the base member rear end. Once the adapter is within the base of the base member the pegged locking plate biasedly cams a plurality of tape locking elements into a locked position permitting torquing of base member to the threaded projectile housing.

Abstract: A tool (12) for mounting a track assembly (11) on a track-type vehicle comprises first (18) and second (39) attachments for being interconnected between a drive sprocket (10) and the track assembly (11). A flexible connector (35) has its ends attached to the first attachment (18) and is further attached to the second attachment (39). In carrying forth the method, the sprocket (10) is rotated to dispose the free ends of the track assembly (11) adjacent to each other for connection by a master link (16) or pin (42). The tool and method provide for the expeditious and safe mounting of the track assembly (11) on the vehicle, including smaller-sized ones.

Abstract: A fastening system utilizes a tapered plug configured to be matingly received in an elongate, buttonhole-like slot. The slot has an enlarged receiving portion into which the tapered plug can be axially inserted, and a narrower retaining portion having a cross-section which tapers in correspondence with the taper of the plug to establish a snug, secure connection. The retaining portion has an undercut end region which matingly engages a maximum of surface area of the tapered plug to establish a connection which will transmit relatively heavy tension, compression and shear loadings as well as bending moments. The plug is preferably molded from plastics material. The slot is preferably formed using a rotating cutter.

Abstract: An offset gate MIS device is fabricated by forming an insulating film with a gate insulator portion as a part thereof on the surface of a semiconductor substrate having one conductivity type, providing a gate electrode on a portion of the insulating film, using the gate electrode as a mask to apply impurities of the other conductivity type with a first impurity concentration to the surface of the semiconductor substrate through the insulating film, forming a shielding film on the surface of that portion of the insulating film which is near the gate insulator portion beneath the gate electrode, using the shielding film as a mask to remove an unmasked portion of the insulating film so as to selectively expose the surface of the semiconductor substrate, applying impurities of the other conductivity type with a second impurity concentration higher than the first impurity concentration to the exposed surface of the semiconductor substrate, and heating the resultant structure to diffuse the impurities into the semi

Abstract: An electrically programmable memory array of the floating gate type is made by a process which allows the edges of the floating gates to be aligned with the edges of the control gates which also form address lines. Contacts to individual cells are not needed. These factors provide a very small cell size. The source and drain regions are formed prior to applying the first level polysilicon then covered with thick oxide, rather than using the polysilicon as a mask to define the gate areas.

Abstract: A primary coil and N secondary coils of insulated electrically conductive wire are wound side-by-side about a ferrite core. Every T turns, the wire forming the secondary coils is wound over a separator strip forming an array of loops. A pair of spaced parallel conductors, for displacing the separator strip, are inserted in the array of loops and are soldered to the loops. The loop portion in the space between the conductors is removed. The assembly is covered with a layer of insulating material. The windings are repeated in a second or more layers over the first layer until the desired number of primary and secondary turns is formed.

Abstract: A via (21) is formed in a multilayer printed circuit board (10) by initially etching apertures (14) in the land areas (13) of the circuit pattern on the layers (11) prior to uniting the layers. A beam (16) of laser energy is then directed through the apertures to form a via through the printed circuit board. Each via is defined by the apertures in a plurality of vertically aligned land areas. The via is then electrolessly plated to provide electrical connections between vertically aligned land areas.

Abstract: In apparatus and method for installing a multi-contact electrical connector at the terminus of a multi-conductor cable, a plurality of electrical contacts are inserted in a dielectric body member of the connector with the installed adjacent contacts spaced apart a relatively short, accurately determined distance and the installation method and means provide for the insertion of the contacts sequentially, in interlaced groups of simultaneously inserted contacts, thereby enabling the adjacent simultaneously inserted contacts of each sequential group to be spaced apart a distance greater than the limited given distance during installation while maintaining the accuracy of the relatively short given distance between adjacent installed contacts.

Abstract: A shaving apparatus has a circular shear plate provided with hair-entrance apertures and a cutting unit associated with and rotatable relative to the shear plate. The cutting unit comprises a cutting member having a circular central body and a hair-pulling member having a circular central portion. Cutters extend from the central body circumference toward the shear plate, with each cutter having a guide wall. A lead cutter is associated with and movable along the guide wall of each cutter, the lead cutter being connected to the central portion circumference by a V-shaped elastically deformable arm. One link of the connecting arm is secured to the central portion and extends tangentially therefrom; and the other limb is connected to the lead cutter. Each connecting arm is elastically deformed so as to urge its lead cutter against the guide wall of the associated cutter.

Abstract: A razor handle for a razor blade assembly adapted to be movably mounted on the handle, the razor handle having opposed and aligned journal means disposed on arm portions, the arm portions being movable toward and away from each other reciprocally and axially of the journal means to permit the journal means to engage and disengage the razor blade assembly.

Abstract: An elongated pressure sensitive adhesive element for attachment within a recess on a component part of a shear, the upper side of the sheet carrying indicia for indicating the manufacturer or distributor or seller of the shear. The shear has pivoted crossed blades normally biased to opened position and is provided preferentially with a recess or inset in the spine or upper wall of the upper handle, into which an ornamental and/or information-bearing label may be inserted: (a) to impart a pleasing appearance to the tool; (b) to conceal an unsightly rivet which attaches the biasing spring to the handle; and (c) to carry information such as the manufacturer's or distributor's name, his trademark, tool model or number, or the like. The label and upper handle may be of contrasting colors to enhance tool attractiveness.

Abstract: This small hand operated yard tool is designed and invented specifically for the individual home owner to cut off dandelion flowers from their lawns. The tool consists of a four by six and one-half inch blade with a double edged row of triangular shaped cutting prongs, attached to a short 32 inch inverted T shaped handle, that when held in an adult's hand by their side reaches down toward the ground to just above ground level. When said blade is swung forward and backward underneath the dandelion flowers it cuts and snaps them off, thus removing said blemish from the lawn and diminishing future outcrops of the weed.

Abstract: A method of measuring the bends in a preformed tube by locating in space, with a mechanical tube-engaging apparatus, the centerline of each straight tube section. Where the bends are measured of a tube which is longer than the physical boundaries of the apparatus, adjacent portions of the tube are successively positioned within the boundaries of the apparatus and the centerlines of sufficient straight tube sections are located with the tube in successive positions to correlate the tube position and orientation at the successive tube positions. In measuring a tube with a straight section of such a length that bends at either end thereof cannot be correlated at successive tube positions within the physical boundaries of said apparatus, an apparatus is attached to the straight section of the tube to create simulated bends within the long straight section, enabling measurement of the bends at each end of the long straight section.

Abstract: A sighting device for enhancing a golfer's putting accuracy comprises an elongated vertical sight and a liquid level, which are provided by a compact hand-held, semitransparent or translucent casing with particular indicia and contained liquid. After the golfer moves to a position at which he views the ball and the cup along their shortest interjacent path, he views the position of the cup with respect to the ball in reference to the sight and plumbs the sight in reference to the level. A correct indication of how the ball will break thereby is provided.

Abstract: A dryer for particulate material, especially wood chips, to render them suitable for burning comprising an enclosure, spaced baffle plates in the enclosure dividing the enclosure from bottom to top into three chambers; an intermediate drying chamber for holding a column of particulate material for drying and two air chambers, one on each side of the drying chamber. The baffles contain openings, the air chamber at one side contains a bottom opening through which drying air is supplied to the enclosure and the air chamber at the other side contains an opening at the top through which moist air is discharged from the enclosure.

Abstract: A multiplication study device for teaching a student multiplication skills by operation of push-buttons mounted in a box-shaped case. The push-buttons are each provided with a semi-transparent see-through surface which permits the appearance therethrough of an answer to a multiplication problem when the push-button is depressed so as to come into contact with a projecting member disposed therebelow. A plurality of the push-buttons are mounted in the case, and the case includes a rear cover for mounting the projecting members. A common resilient member in the form of a urethane plate is employed for normally urging the push-buttons in an upward direction.

Abstract: A fashion previewing system having improved optical and color characteristics for allowing the previewing of various hair styles and colors, and other fashion items. The previewing system utilizes a slide projector for projecting a hair style in realistic color onto a rear projection screen. Forward of the screen is a lens, coated on the projector side of the lens with an anti-reflective coating, and coated on the opposite side thereof with a partially reflective coating. The outer surface of the lens with the partially reflective coating thereon is convex so as to reflect the facial image of the viewer back to the viewer. The inner surface of the lens is flat or curved in cooperation with the outer surface to make the hair style projected by the projector visible to the viewer in proper proportion to the reflected facial image. The slides containing the hair style and color to be projected are preferably characterized by a blackened face and neck region and an appropriate background color.

Abstract: A series of interrelated sets of tetrahedron Each set is capable of assembly into a cube with all the cubes being identical in size. Typically, there are at least three such sets, though there may be more; and when there are three sets, for example, one set contains twice as many tetrahedron blocks as the second set and four times as many as the third set. The tetrahedrons are preferably hollow and each of them has a magnet for each face, e.g., affixed to the interior walls of its faces, the magnets being so polarized that upon assembly into a cube or pyramid, the magnets of facing faces attract each other. Preferably, the blocks are colored in such a way that faces of the same size and shape are colored alike and each size and shape has a different color.

Abstract: Disclosed herein is a new and improved running shoe in which the structure and anatomy of the shoe, including the upper and the thermoplastic rubber unit bottom to which it is secured is balanced and synchronized with the complex action of the wearer's foot in order to tend to optimize the functioning of the multitudinous bones and muscles of the foot and leg during running movements, in general, and during the mid-stance period of the running gait in particular. The unit bottom of the new running shoe has a specially configured and contoured plantar surface having a narrow throat portion with specially shaped integral medial and lateral pad portions disposed therein intermediately of the anterior and posterior portions thereof. The dorsal surface of the new unit sole is generally contoured to conform faithfully to the anatomy of the plantar portion of the wearer's foot when the foot is in its neutral position.

Abstract: The boot includes a heel portion which together with a sole and vamp define a space for accommodation of a wearer's foot. A stiff inner upper is integrally connected to the vamp and heel portion and a stiff outer upper surrounds the inner upper. The outer upper is connected to the inner upper at the rear of the boot only and is free to move in the forward and rearward direction relative to the inner upper but is substantially immovable relative to the inner upper in the lateral direction.

Abstract: A ski boot comprises an upper, of which the stiffness is adjustable, and a strap surrounding the upper of the boot in the zone advantageously corresponding to the bottom of the leg.Means are provided to fix the strap on said upper.The strap comprises at least one zone of elastic deformation located between the said means for fixation on the upper, and means for controlling the deformation advantageously cooperating with the strap at least one either side of said zone of deformation.

Abstract: A protective device for spiked athletic shoes to prevent damage from and by the spikes. The protective device comprises a sole portion containing a plurality of spike-accepting apertures, and resilient clips for holding the device to the athletic shoe. One of the resilient clips is designed to grip the toe welt, while a pair of spaced clips grip the heel of the shoe. In another embodiment, the heel gripping clips are staggered on opposite protective devices so that the devices may be placed together in face-to-face relationship for compact storage. In another embodiment, the clips are pivotally attached to the protective device, and can be pivoted flush with the device when not in use for storage.

Abstract: An adjustable contact portion is detachably secured to the mast of an implement such as a snow plow blade and the other contact is secured to the fluid operator in the mast which raises and lowers the blade. These contacts are operatively connected to the battery of the implement and to an indicator adjacent the operator. The operator sets the adjustable contact portion and when the blade is lowered to the desired degree, the two contacts engage thus completing the circuit and operating the indicator so that the operator is informed that the blade is at the lowermost position desired. The device may also be used on agricultural implements such as discers or the like in order to indicate when a preset depth is reached or digressed from.

Abstract: A pedal driven plow having a frame, front and rear wheeled axles and a plow blade pivotally mounted to the front of the frame. A pair of longitudinally extended, pivotally mounted pedals have tongues on their underside which alternately engage gears on the rear axle to propel the plow when the pedals are alternately raised and depressed by a walking motion. Support bars are provided along the frame sides. An alternate embodiment utilizes a chain drive.

Abstract: The scooper-excavator is self-propelling and comprises a chassis having a roughly U-shape in its horizontal plane. A bucket-wheel is mounted to be rotatable about a horizontal axis which is fixed relative to the chassis and is engaged at least partly between the branches of the chassis. Discharge means are mounted on the chassis to discharge the product scooped by the bucket-wheel. The scooper-excavator is supported on the ground by three support means which define in the aforementioned horizontal plane three bearing points located at the corners of an isosceles triangle. Those of the support means corresponding to the corners at the base of the isosceles triangle are, in the course of the work of the scooper-excavator, permanently driving means and orientable about respective vertical axes. These driving and orientable means are located on each side of the chassis and respectively associated with the branches of the chassis.

Abstract: A marker plate construction for use in terminals, particularly, serially disposed multiple terminals as used in switching appliances. Known marker plates are linked into strips and have to be individually separated from the strip in cases when the juxtaposed terminal blocks have different widths. The marker plate strips according to the invention include tear-off connectors between the individual marker plates which are extensible, or are of variable length in such a manner that the cutting of the marker plate strip during the insertion of the individual marker plates at separate terminal blocks is eliminated.

Abstract: A frame for displaying phonograph record album covers. The frame also provides an effective means for storing phonograph record albums. The inner periphery of the frame defines an opening which is slightly larger than an album cover so that a cover can be mounted within the frame by simply placing the cover on the upper surface of the bottom frame section. The album cover rests within the frame with the top of the cover tilted slightly inwardly. Grooves or bosses are framed in the lower frame section for the purpose of preventing the bottom edge of the tilted cover from sliding off the frame section. Removal of the album cover is accomplished by applying fingertip force to the lower portion of the album cover thereby causing the lower edge of the cover to move out of the groove or bosses towards the rear of the frame. When the cover is approximately vertical, the upper edge of the cover will fall forward into the hand of the user.

Abstract: A mount for photographs, pictures and the like comprising a rigid frame defining within its perimeter a window opening, said frame having front and back sides and at the back side one or more planar surfaces defining one or more recesses for receiving in superimposed relation window glass, a photograph or picture, a removable back panel, and a back board attached to the rearmost planar surface over the back panel. The frame is comprised of ceramic and the back board may optionally be provided with a hanger and/or support.

Abstract: In a price display board self-coiling plastic tapes having a sequence of numerals imprinted on them are translatable past rows of windows. Tape holders behind the windows have platens for supporting the tapes from their rear faces. The platens have one edge molded integrally with the holders and three free edges so they can act as preflexed flat springs for pressing the tapes against tape guide flanges which extend along the sides of the windows.

Abstract: A location indicating device has a size and shape to be carried on a key ring or chain and is adjustable to display various indicia corresponding to a location, such as that of a parked vehicle. The location indicating device is formed of a flat housing having opposite display and operating ends and an adjustable indicator assembly disposed in the housing including indicating strips carrying indicia for positioning at the display end, the indicating strips being movable via rotatable thumb wheels extending externally of the housing at the operating end to permit selective rotation thereof for positioning selected indicia at the display end of the housing.

Abstract: A sign holder for a window of a vehicle, such as a station wagon, car or pick-up truck, in which a panel for displaying a sign is supported by one or more fixtures, each of the fixtures having a tubular member normally extending vertically at the rear of said panel and having reciprocable shafts extending out of the upper and lower ends. The shafts are provided with shoes which seat on the frame of the window, and the panel is held in spaced relation to the window to permit circulation of air and thus minimize condensation on the window and face of the sign. A spring or other resilient member is disposed between the shafts for urging the shafts upwardly and downwardly to seat the shoes on their respective window frame members.

Abstract: A method and device for temporarily supporting advertising pieces or the like on a vertical surface. The device includes a flexible backing band having a pair of spaced, parallel permanent magnet strips secured thereto. The magnet strips are of opposite polarity and arranged to clamp an advertising piece therebetween when the flexible band is folded over to position the magnets in an aligned facing orientation. A pressure sensitive adhesive layer is provided on the flexible band to affix the device to a suitable vertical surface to display the advertising piece.

Abstract: A crossarm type support having a vertical post formed from a rectangular tube having a set of internal splines. Spike elements formed from flat steel stock are bolted in the lower end of the posts. A plastic stabilizer block is inserted between the spikes for strengthening the base of the post. The post is installed in the ground by pushing on a horizontal portion of a spike with a heel or by the use of a hammer or the like. A crossarm is provided at the upper end formed from a second rectangular tube having a grooved channel along its lower edge and a slotted channel along its upper edge. The vertical posts and crossarm are mortised to form complementary notches for mounting the crossarm to the post. The post and internal splines interlock with the crossarm and channels to provide internal support and rigidity to the joint. The lower crossarm channel receives hooks for attaching a hanging sign and the upper channel includes a plastic insert for receiving an interchangeable rider sign.

Abstract: Springs adapted for long-term installation in a limited space, in a minimum-stress condition. When thrust is desired, the springs are stressed by adjusting the position of some components, resulting in a tendency to expand.

Abstract: An improved lobster trap composed of a one-piece molded plastic hollow trap body defining a main interior chamber, a door to close and open and gain access for removing lobsters trapped in the chamber, and a lobster trap opening provided with a guide path for entering lobsters and which guide path terminates in the central zone of the trap in spaced relation from the walls, top and bottom, so that a lobster following the guide path would fall into the chamber, attracted by bait. The body and the door are of openwork construction, said body having a plurality of openings in spaced relation from one another throughout the surface thereof.

Abstract: Educational building blocks are described which comprise a right prism member and two flat rectangular plates having widths equal to the altitude of the prism and lengths greater than the greatest altitude of the prism bases. One of the plates is attached to each base of the prism so that the flat surface of the plates coincide with the prism bases. The flat plates are so oriented that they are in mirror image relationship to each other. Blocks of this kind may be fitted together to create a great variety of structures and forms.

Abstract: A pneumatic noise-producing toy utilizing a hollow cylindrical container having an elongated deformable tubular body member, closed at one end and provided with a removable closure member at the other end, and a firing device cooperable therewith having spaced jaw members between which the container may be disposed, and upon the application of manual force to move the jaw members toward one another sufficient compression forces may be applied to the container to deform the latter and increase the air pressure therein sufficient to forceably disengage the closure member therefrom and produce an explosion-like noise.

Abstract: An electrically-operated mobile model toy which carries in it a drive motor and a DC power source to feed to the drive motor and is moved by the driving force of the drive motor is disclosed, wherein a start control device and an imitation sound generator to generate an imitation sound as the drive motor rotates are provided, the start control device being provided between a driving section driven by the drive motor and a driven section and so constructed that it can transmit the driving force of the driving section to the driven section when the number of revolutions of the drive motor exceeds a preset level, the imitation sound generator being provided between the drive motor and the start control device.

Abstract: A moving toy climbs an upright surface via suction cups affixed to a housing and additional suction cups affixed to the free ends of crank shafts. The crank shafts are coupled to the ends of a drive shaft outside the housing and the drive shaft is driven by a motor coupled thereto in the housing.