Abstract: An elongated handle having top and bottom surfaces and defining front and rear end portions. The handle includes top and bottom surfaces and opposite side surfaces as well as a transversely enlarged head on the front end thereof. The head includes a longitudinally convex bowed and generally transversely straight bottom surface portion and a central upstanding opening is formed through the head and opens upwardly through the top surface of the handle and downwardly through the bottom surface portion rearwardly of the front end of the head. A transverse roller is journaled in the opening between the front and rear limits thereof and a cutting blade is supported from the head and defines a rearwardly and downwardly facing straight transverse cutting edge generally flush with the aforementioned undersurface portion and spaced intermediate the roller and the forward extremity of the opening.

Abstract: A safety razor incorporates an apparatus for substantially vertical displacement of a blade carrier and the shaving edge carried thereby with respect to a skin guard. The blade carrier includes a circular hub retained by a circular receiving portion of a cover member used in the razor. A circular interfacing device, between the hub and the receiving portion, incorporates two eccentric segments. A first segment receives the hub, and the second segment is engaged by the receiving portion of the cover. Rotation of the interfacing device in the cover provides displacement of the blade in accordance with movement of the centers of the two segments of the device. Such displacement specifically causes movement of the razor blade with respect to the skin guard formed in the cover, and is used to provide a height adjustment for the blade.

Abstract: A one-piece plastic razor molded to contain a handle, a guard plate at the top thereof, at least one locating pin upstanding from the guard plate and adapted to extend through a slot in the razor blade, a cover hinged at one end of the guard plate having at least one slot, beads in the locating pin to frictionally engage the cover slot and firmly lock the cover against the blade on the guard plate and means to ease opening of the cover to replace the blade without sacrificing the locking action of the cover on the guard plate.

Abstract: A cutter device for sheet material having a movable, flat, blade member; a frame; and a pair of parallel, spaced, blades fixed to the frame and between which the movable blade member is movable for cutting co-operation therewith. A lever arm is pivotally connected to the frame and is operative, in use, on the blade member to cause it to move between the pair of blades for cutting-co-operation therewith.

Abstract: A pair of scissors with an adjusting mechanism comprising a bolt to be inserted through openings of blades of the scissors, a fastener engageable with one of said blades, a means for keeping said fastener to be engaged which said blade, and a nut being put around said bolt, said nut being engaged with said fastener, whereby the nut will rotate either to tighten or to loosen the blades by rotating the fastener.

Abstract: A pocket sized record album opener that is adapted to be held in the hand and contains a recessed cutting edge that slidably engages the cellophane bridge over the open mouth of an album jacket thereby opening the same, all the while, the cutting edge being free of the actual record and the user's hand. In one embodiment, a pair of serrated disk-like cutting wheels are mounted on spaced apart parallel axles such that their lateral surfaces are at different distances from a flat fence-like guide surface. The fence-like guide surface may be moved relative to the position of the pair of serrated disc-like cutting wheels, thereby permitting the apparatus to be utilized in cutting covers, whereby the cuts in the covers to be made vary in distance from the surface on which the fence moves. A cover is pivotably secured to the housing carrying the axle, acting as a cover for the fence-like guiding surface and the exposed portion of the serrated cutting wheels.

Abstract: A dust shroud for a portable circular saw is described comprising an upper blade housing, a lower blade housing, an external connecting link connecting the two and aligned with the saw blade, and flexible sealing means attached to the upper part of the lower blade housing. The thickness of the connecting link is not greater than the thickness of the saw blade and since the link is aligned with the saw blade it follows the saw blade through the kerf created by the blade in the worksheet. The upper blade housing is attached directly to the saw's motor housing and moves therewith while the lower blade housing is attached to the upper blade housing through the connecting link and is thus kept aligned with the upper housing as the saw cuts through the workpiece. The flexible sealing means keeps dust from escaping from the lower blade housing since it continuously conforms to irregularities in the surface of the workpiece.

Abstract: We have discovered a Skater's Device which comprises a telescoping tubular member extensible over a range of positions from a first innermost position to a second outermost position, thereon. Scribing means are fixedly positioned at one end of said telescoping tubular member and releasable locking means are connected to said telescoping tubular member to retain said telescoping tubular member at the desired position. The center pin means are fixedly positioned at the other end of said telescoping tubular member to fix and retain the center point. A toe loop scribing means is longitudinally and adjustably mounted to said telescoping tubular member to scribe a toe-loop circle tangent to the circle scribed by said scribing means.

Abstract: An apparatus is provided for detecting the presence of, for measuring the magnitude of, and for determining the location of, variations in the distance between the tenter chains in a carpet drying oven. Such apparatus facilitates the measurement of the distance between the tenter chains at various positions along the length of the oven without the need for prolonged shut-down of the oven as has heretofore been required for manual obtention of such measurements. In addition, the instant apparatus allows such measurement to be made while the tenter is under tension due to the weight of the carpet thereon.

Abstract: This invention is a machine component, specifically a bolt, incorporating a means of indicating the clearance the component has with an associated operating part. The device is in the form of a hollow bolt, within which is a slidable, but frictionally restrained, pin which protrudes from the head of the bolt. The device finds particular usefulness in mechanisms which, in the position in which the clearance is critical, are unaccessible for direct measurement.

Abstract: The apparatus includes a service module which receives measurement signals from gauging heads and amplifies them, through amplification circuits, at levels permitting a subsequent direct processing and operation modules connected to the service module through a multipolar flexible cable which include programmable matrices for selecting the signals necessary for the checking to be carried out by the relevant operation module. The apparatus is particularly adapted for processing signals relating to dimensional checking of mechanical parts.

Abstract: A device for aiding in the hanging of a picture or similar wall supported member. The device is of an inverted "T" shape having cross arms and a neck part. Slide members are carried on the cross arms to engage a hanging wire. Locating marks on the neck part indicate the top of the picture and are used to position the device at a desired wall location for the picture with the slide members locating the hangers, such as hooks.

Abstract: A method and apparatus for determining and recording boat compass deviation which includes a novel apparatus which may be oriented with respect to either a line of sight bearing or a compass reading and includes means for recording at predetermined annular increments the difference between the boat's compass heading and the magnetic heading of the vessel.

Abstract: A drawing apparatus provided with calculative function of a calculation portion. A universal parallel ruler in which operating keys and a calculation result display portion for operating the calculative function are disposed on the surface of a member, the base of which is connected with an operating grip of a head portion to project sideways of the member, the head portion being disposed to be moved and set to any position on a drawing board by guide rail members or jointed arm members and supporting a vertical scale and a horizontal scale to be set to any angle.

Abstract: A process and an apparatus for the drying and preheating of coking coal is described, in which a coarser grain fraction of the starting coal is separated out at least at one location in a flight stream tube through which the coal and a heat carrier gas are fed, and in which this larger grain fraction is subsequently reintroduced into the main stream containing only the finer grain fraction of the coal and the predominant portion of the heat carrier gas. The method and the apparatus through which the method may be carried out allow for a single-step process for both drying and preheating of the coal, make it possible to substantially reduce the length of the flight stream tube necessary, and increase the uniformity of the degree of pretreatment of the variously-sized fractions of the starting material.

Abstract: Moist chlorinated polymers, which are separated from an aqueous suspension, are dried. To this end the moist polymers are pre-dried in a centrifugation zone and the pre-dried polymers are completely dried in a fluidization zone which is arranged downstream of the centrifugation zone and in which a bed of fluidized material is continually maintained.The apparatus used for carrying out the drying process comprises a centrifugal nozzle structure which has a discharge outlet associated with it and a fluidized bed drier provided with a closable discharge outlet. The discharge outlet of the centrifugal nozzle structure opens into the upper portion of the fluidized bed drier.

Abstract: The moisture content of tobacco, particularly greenleaf tobacco, is reduced to an accurately determined value by conveying a continuous tobacco stream through three successive sections of a transporting system wherein the tobacco is contacted by air currents. In accordance with a first embodiment, a relatively hot current of air is conveyed countercurrent to the direction of tobacco transport in the first section of the transporting system; in the second section, the flow of hot air is concurrent with the direction of tobacco transport; in the third section, the tobacco is contacted by relatively cool air having a relatively high moisture content. The air which is conveyed through the third section can be withdrawn from the first section, and the temperature of air in the second section is regulated as a function of deviations of moisture content of partially or completely conditioned tobacco from a desired moisture content.

Abstract: Apparatus and method for the treatment of dusty, pulverized, granular goods. The treatment occurs in a vortex chamber with a tangential entrance opening for the gas and in special cases with a separate entrance opening for the goods, and an exit opening for the gas. To control the retention time of the goods in the vortex chamber, a provision is made that the vortex chamber casing comprises an annulus, concentric to the axis of the chamber at its periphery and located opposite to the discharge opening, for the feed of a further treatment gas and for the discharge of the goods.

Abstract: An improved grain drying apparatus of the type having a bin with a perforated floor through which hot air is blown upward for grain drying purposes, and a rotary sweep assembly employing a wet grain distributing auger on its lag side and a dried grain retrieving auger on its lead side. One improvement includes an inclined elongate plate forming an overflow dam which extends along the floor on the lead side of the retrieving auger and which is connected to the sweep assembly for rotation therewith so as to build up the thickness of dried grain on the floor ahead of the retrieving auger to increase the resistance of the dried grain to the upward flow of hot air on the lead side such that a greater proportion of hot air will flow upwardly through the floor on the lag side through the wet grain being deposited thereon.

Abstract: A paper machine dryer cylinder mounts a plurality of circumferentially spaced stud clamps which project from the inside face of the panel, each stud clamp constituting a slotted, arcuate body with a screw spanning the slot to reduce the diameter of a central opening within the body and to which a dryer bolt head is clamped to fix the panel to the end face of the dryer cylinder to reduce heat loss axially of the cylinder.

Abstract: A flight simulator arrangement wherein a conventional, movable base flight trainer is combined with a visual cue display surface spaced a predetermined distance from an eye position within the trainer. Thus, three degrees of motive freedom (roll, pitch and crab) are provided for a visual proprioceptive, and vestibular cue system by the trainer while the remaining geometric visual cue image alterations are developed by a video system. A geometric approach to computing runway image eliminates a need to electronically compute trigonometric functions, while utilization of a line generator and designated vanishing point at the video system raster permits facile development of the images of the longitudinal edges of the runway.

Abstract: Color wheel comprising 3 transparent overlaid discs with circumferential arrays of primary color gradation on each such disc, the colors being overlappable when the discs are moved relative to each other to define thousands of combinations and arranged so that in primary positions of the three discs, which are transparent, the color wheel forms perfect complements, triads, quartets, sextets, etc. and in almost all relative positions perfect and equal increments of analogous gradations of different color schemes (at all arcs where colors are changing). In each disc there is a 240-degree sweep of each primary color comprising a central 120 degrees of 100% intensity of the primary color decreasing in each 60-degree band of the side of the central 120-degree bands from 100% to 0 intensity at the outer edges of the 240-degree band.

Abstract: Apparatus is provided for facilitating communication of a multi-symbol message by a speechless, handicapped person. The apparatus includes a plurality of independently selectable symbol indicators, preferably arranged in a matrix, and each including an electrically energizable light source such as a light emitting diode that is energized when the symbol is selected. As an aid to message composition, an individually selected one of the symbol indicators serves as a cursor. The apparatus receives signals supplied by an actuator accessory for defining commands including a cursor-move command and a record command. Upon completion of message composition, the apparatus provides for automatically selecting each symbol indicator that had served as the cursor at the time of receipt of a record command.

Abstract: A teaching aid procreated to develop learner participation in mental computation of number combinations involving all of the elements of basic arithmetic. Four elongated slide members are permanently housed within the confines of a frame member. Each slide member has the numerical figure indicia of from one to twelve printed thereon. The frame means has four windows therein. Each window is associated with one of the slide members whereby movement of the slide members will cause various numbers to be viewable therethrough. Arithmetic function indicia is printed on the frame member between the windows whereby various arithmetic problems can be displayed by movement of the slide members to cause selected numerical figure indicia to be viewable through the windows.

Abstract: A shoe having improved fastening means for holding it upon a wearer's foot includes a tongue having fingers extending laterally from each of its sides. Slits are formed in each side wall of the shoe near to the shoe sole. The fingers extending from each side of the tongue pass through the slits in the associated side wall and then in a reverse direction to extend over the upper surface of the shoe, where the two sets of fingers are fastened together.A shoe having improved means for supporting and protecting the foot of the wearer includes a relatively flat rigid supporting base for the foot. A relatively rigid rocker member which is longitudinally curved to form a load-bearing pedestal is placed beneath the base. One end of the rocker member is pivotally secured to the base and the other end is spaced from it. The space between the rocker member and the base is filled with resilient material.

Abstract: An athletic shoe for running and having a bar tread configuration providing improved traction with the running surface while cushioning the foot and providing improved flexibility so as not to limit the bending of the foot.

Abstract: A set of ripping teeth secured to a bulldozer blade in either a deployed or undeployed position. The teeth project from a pair of integrally formed support frames with the upper edge of each frame terminating in respective tubular mounting sleeves. Mounting pin project from the outer ends of the mounting sleeves, and a mounting shaft extends between the inner ends of the mounting sleeves. The mounting pins and the mounting shaft are fixedly received by the mounting sleeves, and they are slidably received by spaced apart hangers which are releasably secured to the blade through blade mounted brackets. In its deployed position, the frames extend downwardly along the front of the blade with the teeth projecting beyond the lower edge thereof. As the bulldozer moves forwardly with the blade lowered, the teeth perform a ripping function in the same manner as teeth which are rigidly secured to the blade.

Abstract: A perpetual calendar in kit form which includes a visual display board for accepting grid sheets having an array of spaces corresponding to the days in a month. The current month is designated on the board by a positioning peg. The days of the week are denoted on tabs which are slidably positionable on the board for monthly orientation with the grid sheet. A writing instrument is suspended from the board in overlying position with respect to the grid sheet and is placed under a selected weekday for aligning monthly dates occurring on that day. The writing instrument also includes an adjustably displaceable date index which can be keyed to any date on the grid sheet. In addition, the writing instrument is further removable for recording information on the grid sheet.

Abstract: A plurality of horizontally extending rod shaped elements are secured together so as to lie in a substantially vertical plane with a relatively small space remaining between adjacent elements. A variety of clips may be affixed to the curtain for supporting and displaying various different items. The clips include an upwardly extending tang which lies behind the curtain, a ledge which rests on one of the rod elements and a holding portion.

Abstract: A picture viewer having a housing to contain a pile of pictures, a slide in the housing, a window in the housing, a pressure plate confronting the window, springs mounting the plate, in certain embodiments biased to press the plate toward the window, and in other embodiments biased to retain the plate away from the window, a control to alternately move the plate against the spring bias or release the plate to alternately apply and relieve pressure on the pile of pictures, the control operating in response to withdrawal and return of the slider and also being manually operable.

Abstract: The invention relates to an apparatus for the alternate exposure of individual sheets from a pile of sheets, in particular to a photo-viewing change device, having a bearing face for the sheet edges at one side of a pile of sheets and having an access means or a shifting device for shifting an end sheet of the pile of sheets parallel to its sheet face.

Abstract: A sign post comprising vertically and horizontally extending frame elements which are mutually connected in order to form one or more compartments for accommodating signboards, wherein each of the horizontal frame elements, at the ends thereof, is provided with securing elements comprising recesses extending crosswise with respect to the longitudinal direction of the horizontal frame elements, each vertical frame element has a hollow profile and is in a side wall provided with openings for accommodating the securing elements of the horizontal frame elements in such a way that the recesses of the securing elements are arranged inside the vertical frame element or elements, a locking rail is provided for each vertical frame element, the locking rails being provided with openings of such a form that they allow accommodation of the securing elements accommodated in the openings of the corresponding element and movement of the locking rail with respect to the securing elements in such a way that wedge elements of

Abstract: An animal trap of the type which precipitates an animal into a disposal chamber (12) through a disposal opening (40), characterized by having a pyramidal bait chamber (11), with an entrance (32) and non-grip internal surfaces, around the disposal opening (40), and a pivoted shutter (42) that normally closes the disposal opening (40), but is actuated by the weight of the animal to not only unclose the disposal opening (40), but also close the entrance (32).

Abstract: An apparatus for improving flight safety in the vicinity of an airport by reducing the incidence of birds in the vicinity of the landing strip. Worm traps are disposed adjacent opposed marginal edges of the landing strip and extend longitudinally therealong and have an outer upper wall surface sloping downwardly and outwardly from the landing strip to the adjacent grassed area. The worm trap is located in a trench along the landing strip and a narrow strip between the worm trap and wall of the trench provides entry for the worms into the trench. The worm traps have an inner chamber for collecting the worms as they crawl there into through an opening adjacent the bottom of the worm trap. Means are provided within the chamber to electrocute the worms.

Abstract: A foldable, pocketable aerial toy glider is made of flexible sheet material supported and shaped by attachment to a resilient perimeter forming bodying member comprising good memory characteristics. The sheet material central portion is loose and becomes dished upwardly during flight.

Abstract: A toy vehicle having a spring drive mechanism coupled through first and second unidirectional slip clutch members to the drive wheels thereof, the slip clutches including gear members for winding the spring through a first gear ratio while pushing the vehicle in the reverse direction on a surface, and for propelling the vehicle through a second gear ratio upon release of the vehicle, each of the actions utilizing only one of the slip clutch members.

Abstract: A submersible toy comprised of an upper body portion and a watertight lower body portion coupled to said upper body portion, the upper body portion having a first horizontal rudder on the periphery thereof and a float disposed inside thereof, the lower body portion having a motor and a cell disposed inside thereof, a propeller mounted on a rotary shaft of the motor and a vertical and a second horizontal rudder disposed at the rear of the propeller. With this construction, the submersible toy can alternatingly cruise under water and on the surface.

Abstract: The process of embryogenesis in vitro whereby single embryonic cells are obtained and from which normal, healthy plants can be produced. The process is capable of making, in vitro, any metabolite producible by the whole plant, for example tropane alkaloids. This process of embryogenesis in vitro comprises the steps of inducing from any plant material, for example, from plant material of the families Solanaceae and Erythroxylaceae, the formation of a partially dedifferentiated tissue comprised of mitotic cells, such as callus and tumor cells, preparing a cell culture therefrom, rejuvenating the cells to return them to the embryonic state through controlled environmental conditions, for example, in the case of Solanaceae and Erythroxylaceae through temperature and light, differentiating the embryonic cells to restore the ageing process thereof whereby the tissue function, as part of their normal growth pattern, will give embryos and consequently metabolites.

Abstract: A plant growth media in the form of a gel which is useful for growing plants in the form of seeds, seedlings, cuttings, nursery stock, etc., is obtained by dissolving a water-soluble polyisocyanate capped prepolymer containing said growing plant in an aqueous medium optionally containing various plant growth additives such as fertilizer, agricultural modified minerals and the like. The media can be formed in a variety of shapes.

Abstract: A pair of lever arms are hinged together at one end and disposed beneath a plant container, compression spring being disposed between the other ends of said lever arms and a flexible water supply hose being sandwiched between said lever arms intermediate their ends. Thus, when the soil in the container is dry and thus light, the spring opens the arms and allows water to flow through the hose to the soil; when the soil is moist, and thus heavy, its weight overcomes the force of the spring and compresses the hose to cut off the supply of water.

Abstract: The sides of the blades in a pivoted blade structure are mounted against a laterally curved, relatively rigid, side seal strip having centrally positioned on the protruding portion of the curve a series of laterally spaced soft and flexible longitudinally extending teeth. The sides of the pivoted blades are supported by these teeth and are sealed by these teeth when the blades are in a closed position.

Abstract: A hinged screw section for a worm drive garage door operator which allows the worm shaft to be assembled at the factory and folded back upon itself so that it can be shipped in a smaller and shorter package. Two different joints have been developed, one of a "I" type in which the connecting link between the two sections of worm shaft is merely a flat metal section with a hole in each end which fits into a slot in the ends of the two worm shaft sections and the assembly is pinned together with two rivets or bolts and the spacing between the two threaded shafts is such that a rack driven carrier will mate with threads of each portion. A second configuration utilizes an "H" joint and the link contains slots and flat tangs are formed on the ends of the two threaded shafts and joined with rivets to the link.

Abstract: An operator for a casement-type window having an openable sash mounted adjacent one edge thereof for combined pivoting and linear movement of said sash edge relative to a window frame. The operator includes a first operator arm rotatable about a fixed axis and having an end adapted for movable engagement with the sash at a distance from said one edge of the sash to impart a rotational force to the sash, a second operator arm and a connecting link pivotally connected between said second operator arm and the sash adjacent said edge, and said second operator arm being pivotally mounted on the first operator arm, with there being intermeshing drive gears fixed one to each of said arms, with one gear being a drive gear and the other gear being a driven gear.

Abstract: A hard-top type vehicle door window assembly having a tape drive window regulator mechanism with a connector device which is guided on a straight slide pole and permits a change in angularity of the window as it is moved therealong with the window laterally stabilized as it approaches its closed position by cooperation of a stabilizing arrangement between the window and the door's inner panel and also between the connector device and the inner door panel.

Abstract: An improved method of manufacturing a concrete manhole casing and plugs for use therein. The method comprises fabricating a form for the manhole and securing a plurality of retractable arbors on the inside thereof. The arbors are extended through the form and a sealed plug is inserted on the end of each arbor. The concrete is poured into the form; vibrated and compacted. The arbors are withdrawn leaving the sealed plugs in place. The plugs carry a threading on their periphery and a novel locking structure on the inside surface.

Abstract: There is provided an apparatus for sharpening ice skates, which includes means for supporting the blade in a fixed location, and means for moving a rotating grinding member along the blade, with the grinding member rotating about an axis parallel with the plane of the blade. The guide means are provided to allow the grinding member to follow a predetermined profile. The guide means include a gearing arrangement which rotates a cam shaft as the carriage supporting the grinding member moves longitudinally of the blade. A pivotal arm supporting the grinding member has a cam follower which is raised or lowered by the cam surface, to cause the grinding member to follow the predetermined profile.

Abstract: A workpiece separating and unloading device is disclosed for use with vibratory finishing machines of the type comprising a generally circular or annular finishing bowl; the device comprises a generally horizontally disposed workpiece separating screening assembly and a dam or weir which is movably supported so as to be positionable above the level of the finishing media and workpieces within the bowl during a normal finishing operation and being selectively movable to a downward or lower position extending generally transversely of the path of movement of the workpieces and media within the bowl to cause the media-workpiece mixture to be moved onto the upper surface of the separator screen whereby the workpieces are conveyed to some predetermined destination and the finishing media drops downwardly through the separator screen back into the interior of the finishing bowl; the dam or weir is mounted upon a pivot arm which is secured within the central enclosure or dome of the finishing bowl and is pivotable a

Abstract: The invention relates to a holding device for cup-shaped glassware articles in a glass processing machine, especially in a bursting and grinding machine, wherein the cup is placed into the holding device prior to commencement of the processing operation. The cup is retained during processing of the articles in the holding device which comprises a cup-shaped holding element the cavity of which receives said cup. The base portion of the cup may be engaged by a rotating holder of said glass processing machine, and the marginal inner face of said holding element mounts means for retaining cup as it is transferred from station to station in the machine.

Abstract: A rainwater ducting system mounted adjacent the eaves of a building is comprised of a horizontally disposed open gutter containing horizontally directed auger means and a communicating downspout containing vertically directed auger means. The auger means are designed to occlude less than 50% of the cross sectional area of the trough and downspout, and are separately activated by waterproof motors remotely controlled and adapted to provide variable forward and reverse speeds. In operation, the auger means advance solid debris toward and downward through said downspout.

Abstract: An improved gutter hanger is disclosed of one piece construction having an elongated body portion which horizontally spans the open top of a trough-shaped rain gutter, an upstanding support portion which projects upwardly from one end of the body portion above the gutter, and an upwardly and rearwardly facing hook portion at the other end of the body portion which interlocks with an oppositely directed hook-shaped front edge portion of the gutter. At least one upwardly projecting tongue, struck out of the upstanding support portion, engages under an inwardly and reversely bent rear upper edge portion of the gutter. A nail receiving hole extends through the upstanding support portion at a position above the upper extremity of the one or more tongues so that when a nail is driven through the hole into a building wall, the nail cooperates with the gutter hanger to support the gutter from the building wall and to securely lock the gutter against displacement without the nail piercing the gutter.