Abstract: An improved therapeutic ultrasonic toothbrush for daily removal of soft plaque, disruption of the bacterial colonization process within the gingival pockets, the reduction of the recurrence of aphthous stomatitis, and for the acceleration of the healing of the sores of the oral cavity. The device includes a handle constructed of a rigid material, a battery pack, an electronics driving module, a piezoelectric member, and a removable brush head. The piezoelectric crystal resonates, expands and contracts volumetrically, in tune with the frequency supplied by the electronics driving module and thereby converts the electronic energy into sound-wave energy. The sound waves loosen up the bound between the bacterial plaque and the teeth and disrupt the bacterial colonization process within the periodontal pockets and the mucous membranes of the oral cavity. Ultrasonic emission from the back side of the brush accelerates healing of sores of the oral cavity.

Abstract: A multipurpose painter's tool having a blade and handle. The blade has an essentially circular aperture at the base edge thereof defining a collar for stripping roller sleeves from paint roller tools and is provided with an arcuate surface in a side edge of the blade for removing paint from a paint roller. At an apex in the base edge there is provided a projecting boss which cooperates with an adjacent knife edge for use in freeing plastic lids of large paint cans of the type in which the lid has an apertured depending skirt. Work areas are provided between the collar and the side edges of the blade for performing various scraping and puttying functions, opening small paint cans and tightening and loosening wing nuts. At the bottom of the handle there is provided a hammerhead for setting nail pops.

Abstract: A toothbrush wherein a plurality of tubular bristle holders are sleeved onto respective upright pins inside the head of the toothbrush and supported on a respective spring to hold a respective bundles of bristles outside a respective hole at the top of the head of the toothbrush so that each tubular bristle holder is rotated downwards along a spiral groove around the respective upright pin when the respective bundle of bristles is depressed by the teeth, or rotated upwards when the respective bundle of bristles is released from the teeth.

Abstract: A windshield wiper including an outer elongated frame having a top and two vertical sides, a pair of extension arms being a generally inverted U-shaped member having two parallel depending legs each formed with a plurality of holes, the arms are slidably received in opposite ends of the outer frame, a pair of angled positioners each having an upper plate and a vertical plate, the positioners for fixing the arms with respect to the outer frame, a pair of intermediate elongated frames each provided at an intermediate portion thereof with a first axle engaged with the extension arm, a pair of inner elongated frames each provided at an intermediate portion thereof with a second axle engaged with the intermediate elongated frame, and a wiper blade having two opposite grooves engaged with the intermediate elongated frames and the inner elongated frames, whereby the windshield wiper can be adjusted in length by manipulation of said positioner.

Abstract: A versatile paint carrier comprising a box-shaped paint receptacle having an open top for holding paint therein. A first perforated basket is mounted in a vertical position to an inner surface of a side wall of the paint receptacle, so that paint can drip from bristles of paint brushes stored in the first perforated basket back into the paint receptacle. A second perforated basket is mounted in a vertical position to an inner surface of a rear wall of the paint receptacle, so that paint can drip from a roller of a paint roller stored in the second perforated basket back into the paint receptacle.

Abstract: A ball cleaning device adapted for use in causing a plurality of billiard balls to be cleaned under a supply of cleaning fluid comprises a housing having a generally cylindrical side wall, a top access opening and a closed bottom; a spindle rotatably fitted through the bottom of the housing to extend upwards along an axis of the housing; a turntable coaxially mounted on the spindle for rotational movement therewith, the turntable supporting the game balls; an idle wheel concentrically mounted on the turntable for rotation relative to the turntable, the idle wheel having a plurality of compartments arranged along its circumference, each of the compartments receiving the game balls in a spaced apart relationship with one another; and an electric motor for rotatably driving the spindle and the turntable in unison to subject the game balls to a random rolling movement and a planetary movement around the spindle so that the idle wheel is pushed by the game balls into rotation about the spindle.

Abstract: A wiping system for cleaning snow accumulating on the rear signalling lights of a vehicle, using intermittent blasts of air. The blast wiping system comprises timers and a solenoid valve for regulating a flow of air from the air reservoir of the vehicle into intermittent gushes of air. The wiping system comprises also supply tubing for connecting the solenoid valve to the air reservoir of the vehicle, nozzles for directing the intermittent gushes of air toward a surface of the vehicle's lights, and delivery tubing for connecting the solenoid valve to the nozzles. Each nozzle of the blast wiping system is placed near a lower quadrant of the light surface. Each nozzle is further oriented to deflect a gush of air in a tangential upward direction relative to the surface of the light, whereby a layer of snow on that surface is lifted off and blown away in a patch-like formation.

Abstract: A monitoring system for use in a waterless container cleaner of the type having a pressure blower, a pressurized air line having a pressurized air line filter, a vacuum blower, a vacuum air line having a vacuum air line filter, a compressed air line having a compressed air line filter, and a compressed air line regulator having a reservoir for collecting condensation within the compressed air line, is described. The monitoring system comprises: a digital controller, a visual display unit, and three pressure differential sensor switches. Preferred embodiments of the waterless container monitoring system include: a dew point monitor, a container gap sensor switch, a flow rate sensor switch, and a level detector mechanism.

Abstract: A shear viscous damped hinge uses a negator spring and a high viscosity fluid to provide a relatively slow and controlled deployment of the hinge. Shear damping of the fluid slows the angular velocity of the hinge. The invention reduces the end of travel impact loads thereby reducing the risk of damage to the hinge and the object rotated by the hinge. The hinge is particularly useful in, but not limited to, spacecraft applications.

Abstract: A hinge comprises a seat, an elastic pressing member, a pivoting member and a cam member. The seat is provided with a receiving space in which the pivoting end of the pivoting member and the cam member are pivoted such that the pivoting member is capable of turning on the pivoting end acting as a fulcrum, and that the cam portion of the cam member is pressed by the elastic pressing member so as to regulate the angle at which the seat and the pivoting member are caused to intersect.

Abstract: Textile machinery comprising a card having a main swift and a member which is a working cylinder or a comb, juxtaposed to the main swift and having a shaft. The distance between the main swift and the shaft is adjustable by providing a support for the shaft, the support being mounted on and for movement relative to a frame of the card. A gauge holder against which the support is adapted to bear, has a plurality of rotated positions in each of which the gauge holder imparts to the support a different position, in each of which different positions the shaft is at a different distance from the main swift. A fluid pressure jack applies the support to the gauge holder. The gauge holder is rotated by a ratchet and pawl assembly actuated by another fluid pressure jack. The gauge holder has a plurality of gauges thereon radiating in different directions therefrom, those gauges being of different lengths and being selectively engageable with the support.

Abstract: An apparatus for cleaning and opening fiber tufts includes a feeding device and an opening device adjoining the feeding device for receiving fiber tufts therefrom. The device has a series of immediately consecutive, mutually cooperating fiber processing rolls each having a point density which increases from roll to roll as viewed in a direction of fiber material advance through the roll series of the opening device.

Abstract: A comber machine with a nipper head (3) has a fixed bearing (2), and at least one pair of detaching rolls (6") which are rotatably mounted in bearings (41). The nipper head (3) and the detaching rolls (6") are moved during a combing cycle towards one another and away from one another by the distance of a stroke path, up to a minimum distance which corresponds to a predetermined separation value. While still maintaining the stroke path, the predetermined separation distance (ecartement value) can be adjusted. To facilitate the setting of the ecartement value, provision is made for bearings (41) of the detaching rolls (6") to be displaced relative to the fixed bearing (2) of the nipper head (3), jointly on a track (45) which enlarges or reduces the separation value.

Abstract: In a plastic clip which serves to close sausage casings, bags or the like and consists of two interlockable parts (1, 10), at least one part (1) consists of an elongate frame, which has side bars (2), which have a large height in relation to their wall thickness. The side bars (2) are provided with central recesses (4), into which the end of the wrapper, which end has been gathered to form a tip, can be inserted. The other part (1; 10) together with the first part encloses the wrapper and that has been gathered to form a tip. At least the other part (1; 10) is provided with a projection, which consists of a rib (13), which extends parallel to the side bars and protrudes into the interior (5) of the frame. That projection deflects the tip in wave shape and applies pressure to the tip at the same time.

Abstract: A clamp, particularly suitable for tidily restraining a set of sheets, documents and the like, appropriately grouped together in a form suitable for easy consultation thereof, preventing individual sheets from falling out or becoming lost. The clamp includes two clamping jaws longitudinally extending and provided on one side with opposite clamping edges for gripping the set of sheets to be clamped; the two jaws are hinged at one of their ends and are provided with a snap-engaging device which can be manually disengaged to allow the insertion or removal of the sheets. The clamp is particularly suitable for gripping a set of individual paper sheets, magazines, newspapers or for other similar applications.

Abstract: A mechanism for fastening a hook to a shock cord. The mechanism uses a cap to enclose and capture an end of the shock cord inside a cavity of the fastening mechanism. The fastening mechanism includes an aperture and side openings which each expose its inner cavity. A shock cord is fed through the aperture and at least one side opening, enlarged by doubling over and crimping and secured therein by an endcap. Alternatively, the slot and aperture are joined, which allows the shock cord to be easily pressed into the cavity.

Abstract: A clamp for arrangement on a carrying arm is described. The clamp has a first and a second clamp half (10, 20) with in each case two lateral angle pieces (12; 21 ), in which are located a hole (14; 23) for positioning the clamp halves (10, 20) on the carrying arm, whereby the angle pieces (12, 21) which are directed against each other lie pairwise against each other and in each case one angle piece (21) of each clamp half (10, 20) lies on the inside and the other angle piece (12) of the same clamp half (10, 20) lies on the outside, and a legged spring (4) which lies between the clamp halves (10, 20) and keeps the clamps (3) closed. The internal angle piece (21) of one clamp half (10; 20) interlocks rotatably with the external angle piece (12) of the other clamp half (20; 10), and the legged spring (4) fills, in axial direction, the space between the internal angle pieces (21) in each case of the clamp halves (10, 20).

Abstract: A clip is disclosed which comprises a unitary body having a pair of opposing arms joined by an arcuate portion and each of the arms having an opposed jaw portion at ends opposite the arcuate portion, each of the jaw portions having an exterior surface and an interior surface, each exterior surface having a finger grip and each interior surface having teeth with each finger grip being positioned above each of the teeth, and at least one of the opposing arms having a planar section adjacent the arcuate portion and an offset section between the planar section and the jaw portion.

Abstract: In accordance with the present invention, a two-piece side-release buckle is provided comprising releasably connectable male and female members. The male member includes a strap connector base portion on which a strap or a belt may be attached. The male member also includes two resilient arms extending outwardly from the base portion. The arms each include at a free end distal to the base portion separate upper and lower abutment surfaces. The upper and lower abutment surfaces are discrete and spaced-apart from each other. The female member includes a body with a cavity therein, in which the arms of the male member may be inserted for coupling the male and female members. The body includes retaining surfaces in the cavity that are adapted for engaging one of the abutment surfaces of the male member when the male and female members are coupled to securely lock the members together.

Abstract: A method for reducing or eliminating forming fabric edge curl includes slitting or scoring the knuckles formed by cross-machine direction yarns on the long-shute knuckle side of a papermaker's forming fabric. The knuckles are scored or slit to a depth no greater than half the diameter of the cross-machine direction yarns. At least one such slit or score is provided per knuckle. The scoring or slitting has the effect of bringing the ratio between the shrink forces acting on the two sides of the forming fabric in the cross-machine direction closer to unity, and, in turn, reduces or eliminates the edge curl resulting from shrinkage in the cross-machine direction.

Abstract: A semiconductor type acceleration sensor comprises a flexible printed circuit board on which a semiconductor type detector chip section is mounted. The detector chip is formed with openings therethrough overlapping an opening formed in a rear-side base plate of the flexible printed circuit board such that the detector chip section is supported only by a bridge portion. In case of excess input in an acceleration direction, elastic deformation of the bridge portion and a bending portion of the flexible printed circuit board provide absorption of the excess input for protecting the detector chip section.

Abstract: A mounting tool for mounting a tubular member to the top of a fence. The mounting tool includes a generally conically shaped main body member. The main body member includes a forward axial end of conical shape. A handle is mounted transversely to the mounting member. The handle is preferably mounted in a plane offset with respect to a vertical plane of symmetry of the main body member. The main body member also includes spreader wings which are adjustable to vary the amount of spreading of the tubular member and to accommodate tubes of different dimensions. The mounting tool is inserted into an end of the tubular member and is pushed or pulled through the tubular member to aid in mounting the tubular member to the top of a fence.

Abstract: The method for mounting an intravascular stent on the distal end of a catheter. The stent-loading device includes at least two substantially flat surfaces, that are parallel to each other, and that have relative sliding movement while remaining parallel. A stent is placed on the distal end of a catheter and positioned between the substantially flat surfaces which are then moved in an orthogonal direction relative to each other while simultaneous compressive force is applied to the stent. The stent is progressively crimped onto the catheter.

Abstract: A method of making the ejector tubes which serve to guide the ejectors used in molds, for example those used in injection molding comprises a series of operating stages performed on a tube which is the starting point. The first stage is the cutting of a length of the tube to the desired length, with diameter oversizing to allow for subsequent truing. The second stage involves reducing the diameter at one of the end sections. The third stage consists of pretruing the outside, the fourth stage being machining the inside of the end section with total concentricity. The fifth stage involves induction treatment, and this is followed by the sixth stage which is the truing of the outside to obtain the desired outside diameter. In the seventh stage the inside diameter of section is trued, and then finally, in the eighth stage the front section is refaced, thus obtaining an ejector tube for moulds in general. Optionally, a butt may be formed on the rear end of the tube.

Abstract: A rotor especially for use in a high speed electric motor/generator comprises fibre-reinforced plastics material incorporating magnetic filler material, the fibre-reinforced plastics material being arranged as a multi-layered cylindrical portion of the rotor, the magnetic filler material being disposed within and between the layers. The said cylindrical portion may be a hollow tubular-portion. The said portion may be enclosed in a non-composite eg, wear resistant, layer.

Abstract: In a method of assembling a carriage assembly, all first magnetic head assemblies facing first surfaces of magnetic disks are attached to associated arms of the carriage. Each of the magnetic head assemblies is fixed to one side surface of an associated one of the arms, by fitting and calking the mount portion of the first magnetic head assembly in the through-hole of the associated arm. Subsequently, all second magnetic head assemblies facing second surfaces of the magnetic disks are attached to the arms. Each of the second magnetic head assemblies is fixed to the other side surface of the associated one of the arms, by fitting and calking the mount portion of the second magnetic head assembly in the through-hole of the associated arm.

Abstract: A method of manufacturing a thin-film magnetic head having a write element capable of producing a magnetic flux density sufficient to write the high coercivity magnetic tapes at high track density. The manufacturing process requires a minimum number of lithographic steps, thereby increasing the yield of the multiple track magnetic head module. A trench is cut into the ferrite substrate material and filled with an insulator to produce a more efficient write element. A recess is then formed in the ferrite substrate having a geometry sufficient to hold a deposited thin-film conductive coil below the surface of the ferrite substrate. An insulator is then deposited on the ferrite substrate to form a gap spacer as well as to insulate the conductive thin-film coils from the ferrite substrate. The conductive thin-film coil is then deposited on the ferrite substrate in the recesses.

Abstract: A method and apparatus for encapsulating a payload in a shroud and mounting the resulting assembly on a launch vehicle. An encapsulation cell is provided for containing a payload to be encapsulated in a shroud. That cell is maintained at a "clean room" level of cleanliness. A shroud having a cleaned and sealed interior is placed on the roof in a vertical orientation. A seal arrangement seals between the shroud near its lower end and the roof, creating an airlock. The roof panels below the shroud are opened and the payload is lifted into the shroud through the opening and secured in the shroud. The opening is then closed, the seal retracted and the assembly of payload and shroud moved to a bay where it is mated to a space launch vehicle. This cell and encapsulation system eliminates the need to clean the shroud exterior and any need for a very large clean room cell to house the payload, shroud and lifting device.

Abstract: An amorphous core/coil assembling apparatus which prevents or minimizes damage to an amorphous core of an amorphous material upon insertion of the amorphous core into a pair of coils and which is high in reliability and superior in operability. An amorphous core of an inverted U-shape is first fixed at a predetermined position, and then a coil receiving table on which a pair of coils are placed is guided to a position at which end portions of the legs of the U-shape of the amorphous core are positioned in the proximity of a pair of V-shaped openable and closeable guide caps, whereafter the guide caps are removed from the end portions of the legs of the amorphous core.

Abstract: To permit the connection of an electric cable (12) in an end element (10) having a partly frustum-shaped outer surface, a crimping tool is proposed incorporating a gripping plier (50) and a crimping die (60). When the element (10) to be crimped has Been placed in a recess (48), an actuation of the tool has the effect of the element (10) being gripped by the plier (50), the closure of the die (60) and then the application of a tension to the end element by said plier (50), so as to make the die pass through said element. The die (60) then opens automatically and remains open until the tool has returned to the inoperative position.

Abstract: A method for fabricating an electronic assembly comprises attaching an insulative film to a frame and positioning at least one electronic component having a face with connections pads face down on the insulative film. The insulative film is positioned on a porous sheet supported by a vacuum fixture. The porous sheet and vacuum fixture are adapted so as to be capable of creating vacuum conditions for holding the insulative film with a substantially flat surface on the porous sheet. A vacuum is created within the vacuum chamber for flatly holding the insulative film on the porous sheet. A substrate is applied to the insulative film and the at least one electronic component. In one embodiment the substrate is applied by securing the insulative film in position with a mold form having at least one opening around the electronic component and adding substrate molding material at least partially around the component through the opening.

Abstract: A flex or TAB product suitable for chip carrier applications wherein the flex reliability problems caused by copper dendrite growth and lead bending during power and thermal cycling are reduced by application of special coatings to lead areas of the flex tape.

Abstract: A method of producing a rocket thrust chamber in which cooling tubes are positioned within a structural jacket to form a tube bundle, and a liner is positioned within the tube bundle thereby sandwiching the tubes between the jacket and the liner. The tubes are then subjected to high internal pressure and inflated while the liner is simultaneously subjected to the same high pressure, thereby forcing the tubes into intimate contact with adjacent tubes, the liner and the jacket. The tubes, liner and jacket are then subjected to ultrasonic vibrations to bond the tubes and jacket into an integral structure.

Abstract: A method of automatically assembling wiring devices of the type having mounting straps in a continuous sequence, the disclosed wiring device being a duplex wall receptacle. A strip of the mounting strap material is fed longitudinally, being alternately moved by equal increments and stopped to place each segment of the strip progressively at a plurality of operational stations. Portions of the strip are removed to form blanks for the mounting straps which remain mutually attached at positions along each side of the strip which form end portions of the blanks and, ultimately, of the mounting straps. One or more additional strips in which ground contact blanks have been formed are fed in a direction perpendicular to that of the first strip and the ground contact blanks are staked to the mounting strap blanks and severed from their respective strips.

Abstract: A nail clipping and collecting device for use with a conventional nail clipper is designed to be easily grasped and manipulated, particularly by persons with reduced or impaired manual dexterity. A conventional nail clipper is removably positioned within a base and within a handle of the device which are removably hingedly connected together, and the base is configured for receiving, storing and emptying nail clippings. The handle is configured for removably storing a nail file, and a magnifying lens is adjustably connected to the handle for positioning to magnify a nail to be cut.

Abstract: A reciprocatory dry shaver has a head from mounting three elongated cutter heads, one center cutter head and two outer cutter heads extending in parallel with each other. Each cutter head comprises a holder carrying a stationary cutter and a movable cutter driven to reciprocate in shearing engagement with the stationary cutter. The head frame is mounted on a shaver housing from which a reciprocating element projects to drive the movable cutter of each cutter head. The center and outer cutter heads are floatingly supported at individual longitudinal ends by associated center and outer spring members so that each cutter head is vertically movable relative to the head frame. The center spring members are formed in one of the head frame and the associated holder while the outer spring members are formed in the other of the head frame and the associated holders.

Abstract: A razor head comprising a support structure having side portions positioned outside the cutting path of the blade edges and which are formed of a resilient material, for example, a synthetic rubber-like compound. By positioning resilient material in skin-engaging contact on the sides of the razor head support structure outside the cutting path of the blades, a soothing sensation is advantageously imparted to the shaving process and a higher degree of control over the skin as the skin flows over the blades, is attainable.Another aspect of the present invention comprises, a resilient material utilized in the construction of the support structure at a pivotal connection between two relatively movable members in order to dampen vibrations. Other embodiments comprise a plurality of operatively connected blades.

Abstract: A pair of shears has a fixed blade, a fixed handle connecting the fixed blade, a driving blade, and a driving handle connecting the driving blade, a spring between two handles, a pin on the crisscross portion between two blades, and a switch button on the outer side of the fixed handle. The first threaded hole and the first positioning post are formed on the front of the fixed blade. The second threaded hole and the second positioning post are formed on the inner side of the fixed handle. A cutting device such as a saw blade and a scikle is disposed in front of the fixed blade. A through hole and a positioning hole are formed on the rear of the cutting device. The first positioning post inserts in the positioning hole. A screw passes through the through hole and the first threaded hole to fasten the cutting device.

Abstract: The blade of a folding knife is pivoted on a D-shaped pivot axle which also serves to lock the side pieces and belt clip of the knife in place. A thumb pin used to open the blade is also D-shaped and press fit into place in the blade. The blade has transverse grooves at its base to aid in extracting the knife from a sheath. The blade is locked into place by a side-lock plate, which is held in place by ridges in the side pieces. The side pieces are preferably made of rigid plastic, but with soft inserts in the sides for improved gripping.

Abstract: FIG. 1 shows a drawing instrument which is in chain dotted lines except for a lower portion of one leg of the instrument. The leg is formed generally of plastics and has a metal end piece provided with a non-needle-like or squat conical tip or point which extends from a circular base.

Abstract: A compass able to draw any-size ellipses consists of a body, a first and a second position ring, a movable rod, a pen rod, a position rod and a coil spring. The first and the second position ring are screwed on an upper and a lower portion of the body respectively. The movable rod is fitted in a lengthwise center hole of the body. The pen rod is combined on a lengthwise opening of the movable rod. The position rod is fitted in a tubular chamber of the movable rod, with the coil spring fitted around the position rod. The movable rod can move up and down to rotate the pen rod, and the pen rod can be turned around the body for one round by pushing down and up of the movable rod to draw any-size ellipses.

Abstract: A device is disclosed for adjusting and aligning an axle of a wheeled vehicle wherein a pair of such devices are disposed on either side of a vehicle such as a motorcycle. The devices then provide a scale on both sides of the machine which are visible through sights. A person attempting to adjust and align the axle of the machine must then simply match the scales on either side of the machine to ensure that the axle is aligned.

Abstract: A toothing testing apparatus includes at least one pair of measuring disks or balls of a certain diameter which are introducible into respective substantially diametrically opposed tooth spaces of a testpiece, and measuring probes each including a base part and a measuring part elastically secured to the base part and rockable relative thereto, for measuring the distance between the measuring disks or balls of said at least one pair, the measuring part having one of the measuring disks or balls attached thereto and the base part being housed in or against a stationary part of the testing apparatus. The measuring disks or balls are symmetrically positioned and automatically centered in the tooth spaces to be measured, and the depth of penetration of the measuring disks or balls into the tooth spaces is measured by the testing apparatus.

Abstract: The invention relates to an adjustable cartridge case gauge comprising a head portion adjacent to the shoulder of the case and a foot portion adjacent to the surface of the breech, the construction being such that the distance between the head portion and the foot portion are infinitely adjustable.

Abstract: A contour tracing device provides a housing unit which holds a series of parallel probe rods. The rods extend from the housing side walls, and are restrained to sliding, linear motion with respect to the housing. When the ends of the rods are pressed against a surface, they move relative to the housing so as to reflect the surface's contour and maintain their position until manual pressure is again applied. The device may include a lever for locking the rods in a desired configuration, thus preventing the rod positions from being inadvertently altered. The tracing device may include a level indicating device.

Abstract: A cylinder positioner apparatus for offset presses and duplicators which provides for rapid and efficient alignment of plate cylinders of single-color and multicolor presses. A detachable adjustment member is placed on printed images and a micrometer adjustment is used to accurately set the instrument for removing vertical misalignment or to change the vertical positioning of the plate cylinders of the press. The positioner can be used on two-color presses, single stations of multi-station color presses and single-color presses.

Abstract: A multi-purpose measuring instrument for wood working machines including a body having a horizontal side and a vertical side. The edge of the horizontal side is provided with magnets and the vertical side is provided with slide blocks capable of longitudinal sliding movement and being positioned. The slide blocks may be used in measuring the height of the blade of the wood working machine. A circular level set is movably and rotatably provided in the center of the body. The level set consists of inner rings, outer rings and a bubble tube. The outer rings may be turned to a desired degree and angle adjustment of workpieces is achieved by adjusting the rings and the position of the bubble in the bubble tube, providing multiple measuring functions.

Abstract: A set of cooperating tools to assist a roofer in the multiple tasks involved in covering a roof surface with shingles or tiles, and numerous other chores associated with wall and roof construction, protection and maintenance. The set includes a straight-edge ruler, shingle and tile cutting jig, workbench, knee-rests, blade knife, gauges, levels and various accessories that can be synergistically combined to accurately and safely measure, cut and install shingles or tiles while standing on a slanted roof surface under precarious conditions.

Abstract: A method and apparatus for detecting magnetic marks on a wireline logging cable and for more accurately making depth measurements during logging is described. The method uses depth-based, rather than time-based, samples and calculations. A Hall Effect sensor samples the cable at regular depth intervals approximated by an encoder mechanism. The signal values from the Hall Effect sensor are signal processed to better discriminate the precise location of the magnetic marks on the cable. The location of the magnetic marks is used to refine the depth measurements from the encoder mechanism. Depth-based sampling eliminates detection dependence on cable speed, enhances detection ability, reduces computational load, and leads to more accurate determination of the location of magnetic marks.

Abstract: A dryer control system for controlling the drying of polymer plastic pellets within a dryer hopper is provided. A series of temperature snap switches and pressure switches are strategically located within the dryer control system to cause a variety of passive fault lights to be activated to signal faults while the system continues to operate or to cause an alarm light to be activated which stops the drying cycle. The passive fault lights indicate a situation within the drying cycle which should be corrected but which is not sufficiently serious to stop the drying cycle. An alarm being activated, on the other hand, indicates a situation which requires shut-down of the drying system until the problems which caused the alarm are corrected. A programmable logic controller and a temperature controller control the operation of the system by receiving signals from the snap switches and pressure switches throughout the system.