Abstract: Column circuitry for a CMOS static RAM includes a bit line clamp combined with a bit line current source regulated by a voltage reference which tracks changes in transistor characteristics. Separate data read and data write lines are provided, with a differential amplifier for each pair of bit lines. The data read lines are coupled to compensated current source loads, and the differential amplifiers are couplled to switching transistors which are also compensated for transistor characteristic changes, Each bit line pair has a sneak capacitance prevention transistor so that in non-selected columns the bit line pairs are coupled together allowing the memory cells therein to pull down all of the bit lines. This isolates the read lines from unwanted capacitance in the differential amplifiers of each of the non-selected columns, Further, a VCC protection circuit is provided.

Abstract: A cassette holding device for a tape recorder wherein the shock resistance thereof can be assured sufficiently with a simple construction during transportation and during normal use of the tape recorder and protection of a cassette holder, capstan shafts and a tape cassette and reduction in cost and facility in use of the entire tape recorder can be attained. The device comprises an ejecting member which holds, when it is at advanced position, an arresting member to an advanced position in which a cassette holder can receive therein a tape cassette inserted into the tape recorder. When the arresting member is at a retracted position, the ejecting member is prevented from moving from a retracted position to the advanced position, but when the arresting member is moved .[.form.]. .Iadd.from .Iaddend.the retracted to the advanced position, the ejecting member is allowed to move from the retracted to the advanced position to eject a tape cassette from the tape recorder.

Abstract: A baby bib includes a first panel being of an elongated construction and having a pair of opposed leg segments extending upwardly to serve as a closure about the neck of the wearer. A neck liner embraces a portion of the periphery of the panel in the area including at least a portion of the legs, and is of a construction which provides a snug and flexible line of contact between the bib and the neck. A second panel of an absorbent material may be removably mounted upon the first panel. The first panel includes a pocket located at a lower edge to collect materials which fall upon the bib and are not retained by the second panel.

Abstract: An improved design for an open fingered glove is disclosed. The traditional mechanism of attachment of the palm piece to the back piece through the use of fourchettes is eliminated and, instead, the stability of the attachment of the glove parts is provided by a by the use of connector strips made from lycra, leather or other traditional materials. The connector strips connect the sides of each finger from the palm part to the back part at a location proximate the tip of each finger and running to a point short of the crotch of each finger. Using such a construction, structural integrity may be maintained while permitting an opening to exist at the crotch of each finger, thereby providing for increased cooling of the hand.

Abstract: Lace works for a bathroom sink on a counter top of a vanity and similar articles comprising an elongated ribbon of lace fabric. A structure is for removably attaching the elongated ribbon of lace fabric as a decorative border about the rim of the bathroom sink on the counter top of the vanity.

Abstract: A one piece rotationally molded cot for toddlers and other individuals includes a recessed sleeping surface supported above a raised bottom wall by a plurality of upwardly extending pillars. A closed dead air space between the bottom wall and sleeping surface and an additional air space beneath the bottom wall and above the room floor provide insulation for warmth. The cots nest in stacked relation for storage in minimum space. Dollies configured for conforming engagement beneath head and foot ends of the cots include swivel casters to facilitate transportation. Accessory items for use with the cot include a foam pad receivable in a fabric pad cover, a mattress, and a sheet. Cooperating VELCRO (.TM.) fasteners secure the cover to the cot and the sheet to the mattress.

Abstract: A method and apparatus for transferring a load (8) carried by a carrier member (12) between two mutually separate transport paths (3a, b). During transfer, the carrier member switches from being suspended by a device (4a) displaceable in the first carrier path (4a) to being suspended by a device (4b) displaceable in the second carrier path (3b). The carrier member (12) when it is suspended by a first connecting device (9a, 11a) from the displaceable device (4a) of the first conveyor path (4a), is connected to the displaceable device (4b) of the second conveyor path (3b) by a second connecting device (9b, 11b). The length of the second connecting device is reduced and the carrier member (12) is displaced thereby so as to be wholly suspended from the displacement device (4b) of the second conveyor path. A drive mechanism lengthens or shortens at least one of the connecting devices in relation to a housing (14) for modifying the distance between the carrier member (12) and the displaceable devices (4a, 4b).

Abstract: A zipper assembly is used to releasably attach a bag liner to a sleeping bag to retain the bag liner within the sleeping bag and to expand the bag interior to compensate for volume lost by insertion of the bag liner. The zipper assembly includes first and second pairs of spaced rows of liner zipper teeth. Two rows are secured to the existing rows of bag zipper teeth by two zipper slides. A third zipper slide releasably secures two of the other rows of liner zipper teeth to permit an individual to enter and exit the bag liner. In another embodiment of the invention, a protective cover is releasably secured to a bag by a zipper assembly.

Abstract: A water mattress includes a closeable vinyl envelope for receiving water, the vinyl envelope having a top, a bottom, and a plurality of sides, the sides being disposed in opposing pairs. A plurality of double-walled members extend from the top to the bottom of the envelope inside the cavity. Each double-walled member has a top connecting web extending across the top thereof and two walls depending from the connecting web, the connecting web being secured to the top of the envelope. Each double-walled member is also secured to the bottom of the envelope and extends longitudinally substantially from one side of the envelope to the opposing side of the envelope. It is preferred that each double walled member wall include an intermediate elastic section so that each of the double walls may stretch to a limited extent when force is applied thereto by water in the mattress. A pneumatic mattress of similar construction is also disclosed.

Abstract: The invention relates to a device for an examination bed which is adjustable in height, used particularly for a tomography by scintigraphy. The object of the invention is to enable a large amplitude displacement of the bed along the vertical. It allows to situate the bed, at the maximum position, at a height with respect to the to the ground more than twice higher than the low position. An intermediary carriage (14) is intercalculated between the patient support (13) and the pedestal (15) of the device. The carriage (14) and the patient support (13) move simultaneously and along the vertical with respect to the pedestal (15) of the device. By using a chain (20) whose extremities (26, 27) are fixed to the pedestal (15) and to the patient support (13), and which passes on top of a pulley (19) fixed to the intermediary carriage (14), the patient support (13) is raised by lifting the intermediary carriage (14).

Abstract: Mobile imaging table for transporting a patient and for imaging the patient using a radiographic imaging apparatus such as a CT scan, MRI apparatus, or X-ray. The mobile imaging table comprises a generally rectangular lower frame member supported on rollers, a vertically movable upper frame member, a longitudinally and horizontally movable table top which is movable between a first position for transport of a patient and a second position for imaging, and at least one linear bearing assembly for guiding the vertical movement of the upper frame member. Each linear bearing assembly comprises at least two telescoping vertical plates (or other linear bearing support members) and each vertical plate has at least one (preferably two) vertically extending linear bearings mounted thereon. Either a pair of longitudinally extending linear bearing assemblies (one on either side of the mobile imaging table) or a single transverse linear bearing assembly may be provided.

Abstract: A high-low base including a lower frame member supported upon a floor, an upper frame member, and an elevation assembly for variably elevating the upper frame member in height above the lower frame member, fits completely under, and within the pedestal base, of a conventional contour bed. A motorized drive mechanism variably controllably elevates the upper frame member in height above the lower frame member, and the entire contour bed including its pedestal base in height above the floor, in order to facilitate transfer of a bed user to and from a wheelchair, or the provision of care to the user supine within the bed. An upper surface of the contour bed is adjustable to contour a mattress that rests upon this upper surface mechanically and electrically independently of the adjustment of the height of the bed.

Abstract: A seating system primarily intended for use in wheelchairs and similar applications for reducing the development of decubitus ulcers. The seating system includes a relatively rigid, shaped tray and a pressure relieving fluid pad. The tray has a thigh supporting shelf and a depressed seating well. The fluid pad preferably has a plurality of fluid pouches positionable over the thigh supporting shelf of the tray and an array of rearward pouches positionable over the depressed seating well. The rearward pouches in the seating well are wedge shaped and taper downwardly in vertical thickness from one end portion to the other. Each rearward pouch has its thicker end portion overlying a central part of the seating well and its thinner end portion positioned over the upwardly inclined, outer rim section of the seating well.

Abstract: An air amplifier utilizing the coanda effect is disposed adjacent to a web of material to be cleaned. A relatively small volume of compressed air is driven from a slot onto a curved wall surface. The "coanda effect" causes that compressed air to adhere to the wall, and causes a suction creating a relatively high-volume air flow upstream from the slot to be drawn along with the small volume of air adhering to the wall. The high-volume amplified flow of air is drawn along the surface of a web of material to be cleaned to entrain impurities from the web of material to be cleaned. A vacuum source is mounted adjacent to the end of the wall such that impurities are drawn into the vacuum source and removed from the area. In addition, ionized particles are directed into the relatively high-volume air flow to increase the cleaning efficiency of the system. The present invention provides a high efficiency web cleaning system that need not be mounted as close to the web as prior systems.

Abstract: A roller brush for sweeping machines includes an axle (1) which carries distance members (2, 3) which in turn carry profile bars (4) which are arranged along a circumference of the roller brush. The profile bars (4) in turn carry bristle bars (6) provided with bristle members (6.1) which are arranged to protrude mainly radially from the roller brush. One or more cover bars (5) are arranged between adjacent profile bars (4) along the circumference. The cover bars (5) are preferably developed with equal width along the circumference of the roller brush whereby the profile bars (4) are spaced at equal relative distance along the circumference.

Abstract: A wall mounted back washer and applicator which may be used to wash, massage, or to apply lotion or salve to the back of the human torso without assistance. The device includes a foam pad mounted to a rigid plate which contains a plurality of suction cups for demountably attaching to any wall surface. In the alternative, the foam pad may be replaced by or used in conjunction with an inflatable bladder 40 which is inflated or deflated according to the user's desires for a rougher or softer application surface. The size of the device accommodates for the use of any standard size wash cloth. Fabric of equal or larger size and thickness can be used with the device.

Abstract: A paint roller frame and cage assembly mounted for rotation on a shaft portion of the roller frame. The cage assembly includes a plurality of circumferentially spaced, axially extending support bars joined together by a plurality of ribs providing an annular support for uniformly supporting a roller cover thereon. At the inboard end of the support bars is an annular flange having an outer diameter less than the outer diameter of the annular support. Mounted on the annular flange is a retaining spring including a Belleville type spring washer having circumferentially spaced apart spring fingers extending radially and axially outwardly from the outer periphery of the washer for frictionally retaining the roller cover on the cage assembly. The Belleville type spring washer is retained on the annular flange by an end cap having a first annular sleeve telescopingly received over the annular flange.

Abstract: An improved doorstop provides increased safety along with simplified operation over previous doorstops. The doorstop is adapted to be received in a floor mounted receptacle in close proximity to the door. The device includes a door contact member which pivots from a first position in contact with a fully closed door to a second position which permits the door to be opened a limited but finite distance. There is no need to remove the device from the floor receptacle to permit limited movement of the door, thus affording increased protection against forced entry. The improved doorstop is useful both on sliding doors as well as hinged doors. Several alternative embodiments of the improved doorstop are shown and described. When used with a hinged wooden door, the doorstop optionally includes the use of a rigid plate which may be affixed to the door to protect the door from damage by the device and to distribute force exerted against the door over a larger surface area.

Abstract: A hinge structure for a door has a sprung stub at the top of the door which fits into a cavity in an overhead lintel. At the bottom the door has a plate with an aperture to fit on a support post on a support bracket. The support bracket has a vertical limb attached to a vertical door jamb and a horizontal limb with the post which rests on the floor. The door has a part circular vertical edge portion about which it is hinged. The sprung stub can be depressed by a rod inserted in an aperture in the door.

Abstract: A security cover plate assembly for a barrel hinge and the assembly has an inner cover plate and an outer cover plate. The inner cover plate has a flat wall portion and a curved wall portion. The outer cover plate has a flat wall portion and a curved wall portion and a top wall and a bottom wall extend from the respective top and bottom edges of its curved wall portion to cover its respective top and bottom ends. These top and bottom walls prevent access to the hinge pin of a conventional barrel hinge for a door, a window, a boat hatch, or any other installation when the security cover plate assembly plate has been installed in combination therewith. At least one pin extends transversely from the flat wall portion of one of the flat wall portions and the other of the flat wall portions has a pin receiving aperture. The transversely extending pins prevent removal of a door from its hinge assembly even if the hinge pin has been removed.

Abstract: Lathe with a workpiece spindle (28) defining a Z-axis as well as a tool carrier slide (56) bearing a tool carrier in the form of a tool turret (112) having a turret body and a turret head, the slide being displaceable in the direction of a first axis (X-axis) extending transversely to the Z-axis, whereby workpiece spindle and tool carrier slide are displaceable relative to one another in the direction of the Z-axis, the tool turret is pivotable about a second axis (Y-axis) likewise extending transversely to the Z-axis as well as transversely to the X-axis and the turret head is mounted on the turret body so as to be rotatable about an indexing axis extending transversely to the Y-axis, and with first tool receiving means on the turret head (114) as well as a second tool receiving means (142) mounted on the turret body (110).

Abstract: A method monitors and measures the uniformity of tows with mechanical sensing elements in the course of production on a tow line. The tension of the running tow is measured upstream of a transport roll arrangement and is utilized as a measure of the uniformity of the tow. Irregularities in the tow result in tow tension determination outside a predetermined tension range, and when the determined tension measurement is outside that range the irregular tow portions are remove. Also, the frequency of tow tension determination outside a predetermined range may be used as an indication of tow quality and for removing substandard tows.

Abstract: The present invention is a fastener assembly that is readily attached to fabric material and the like, without need of sewing. One embodiment of the fastener assembly includes a pair of interlocking male and female members, each for placement upon an opposite side of the fabric material. A coupling, such as a button, cufflink, or snap fastener element, is affixed to one of the members, and a locking device permanently secures the male and female members on opposing sides of the fabric material. Another embodiment of the invention includes two pairs of interlocking male and female members, each having mating couplings configured to removably attach the pairs of members together.

Abstract: An apparatus for forming a clinch joint in overlapping sheets of deformable material and the related method is disclosed. The apparatus includes a die assembly which cooperates with a punch. The die assembly includes an elongated mandrel having an anvil projecting axially from one end for deforming the sheets of material squeezed between the anvil and the punch. The mandrel is larger than the anvil to define a shoulder thereabout generally perpendicular to the die axis. An expandable die button is coaxially aligned upon the mandrel and is provided with a base ring encircling the mandrel and a plurality of die segments. The die segments each have a head portion and a leaf portion extending between the head and the base ring.

Abstract: A pintail fastener installation tool includes a nose piston cylinder which surrounds a nose piston having a longitudinal bore which is aligned with a jaw opening of a nose assembly. The nose piston also has a venturi bore which meets the longitudinal bore at an angle. When connected to a source of pressurized air and enabled, the venturi bore creates a venturi effect which suctions detached pintails out of the nose assembly and piston into a container. The venturi bore may be disabled by a slide valve which separates the venturi bore from the air feed. The slide valve includes a ring which is positioned around the exterior of the nose piston cylinder. The slide valve is linearly slidable between an open position, which allows pressurized air to flow from the air feed to the venturi bore, and a closed position, which prevents air flow from the air feed to the venturi bore. A pintail container secured to the nose piston cylinder includes a slotted inner bottle and a slotted outer bottle with ribs.

Abstract: A blind rivet setting tool is provided with a spare set of parts which enables a simple conversion from a short, powerful setting stroke to a longer, less powerful stroke.

Abstract: An inertial bullet puller comprises a rigid, tough plastics material carrier tube having an opening at its upper end adapted to receive a cartridge and a head portion at its lower end adapted to be struck against a hard surface. The carrier tube is affixed to the end of a handle in a manner similar to the construction of a hammer. The upper end of the carrier tube includes a plurality of slots cut therein to receive an annular segmented support comprised of a plurality of segments interconnected with an O-ring. A cap at the upper end of the carrier tube includes a tapered inner end to provide a cam surface for positively moving the segments radially inward and holding them in position. After a cartridge is inserted through the segments, the cap is tightened to urge the segments inwardly along the slots so that they engage the cannelure and casing of the cartridge. In use the lower end of the tube is struck against a hard surface until the bullet is observed to pull free of the cartridge casing.

Abstract: This invention pertains to a method of converting a family of the M113 vehicle to enhance the performance of the vehicle. By using the stretch and fabrication method disclosed herein in addition to upgrading mechanical components, volume under armor, mobility and payload capacity of the vehicle are enhanced.

Abstract: In the continuous manufacture of hot strip material, slabs are produced by a pair of continuous casters and heated to a rolling temperature in a bi-level roller hearth furnace. Hot slabs are discharged from the bi-level furnace alternately from its upper and lower roller hearths. The slabs are then scarfed to clean oxide scale from both sides and to heat the slabs to a temperature of about 2300.degree. F. The scarfed ends of adjacent slabs are overlapped and passed through a two high slab mill welder wherein the overlapped ends are joined together. The joined slabs are thereafter finish rolled to strip gauge in a continuous multi-stand hot strip mill.

Abstract: There is disclosed a continuous terminal crimping machine for continuously cutting an electric wire intermittently fed, stripping an end of the cut electric wire, and crimping a terminal on the stripped end of the electric wire. The crimping machine includes a rotatable arm for clamping the end of the electric wire fed along a feeding path to move the same to a predetermined position of a terminal crimping apparatus disposed beside the feeding path and returning the same to the feeding path after the terminal is crimped on the end of the moved electric wire. When the arm stops rotation, an oil damper is caused to abut against surfaces for determining the position where the arm is to be stopped. The oil damper produces damping force caused by viscous resistance to absorb shock at the time that the rotation of the arm is stopped.

Abstract: The lower ends of alignment bearing shafts of an upper die member of a tape automated bonding apparatus are modified to include tapered alignment pins, each having a tapered surface that is complementary to the tapered interior end of the bore of a respective bushing on a lower die member. The alignment pin serves to guide its associated alignment shaft and a ball bearing sleeve carried thereby into the bushing. In addition, a first set of rails is installed directly beneath a die member actuator, and a second set of rails is installed on the upper die member. The second set of rails slide upon the first set of rails, so that the upper die member effectively mechanically floats on the first set of rails. The lower die member is affixed to a translatable platen, which is driven to an end stop position at the part excision station. Then, the upper die member is lowered onto the lower die member, so that the alignment pins contact the bores in the bushings on the lower die member.

Abstract: A method for manufacturing of rotor or stator windings for electrical machines comprises the steps of winding a plurality of parallel wires to form at least two groups of coils on a rotating jig. The plurality of parallel wires are fed from a stationary feed device, which is located in a peripheral direction with respect to of the jig. A finished wound group of coils are transferred from the jig to a coil receiver so that at least two groups of coils are transferred consecutively from the jig to the coil receiver so that for each group of coils, the coil receiver is rotated to a different angular position with respect to the jig.

Abstract: The improved thermotropic LCP composition comprises 10-13 wt. % of a thermotropic liquid crystal polymer resin and 90-87 wt. % of zircon and is useful as an electrical insulator. The composition is a good electrical insulator, permits good heat conduction and experiences small thermal expansion, thus insuring high reliability. The composition may be injection molded to form an electrically insulated housing of a stator for electric machines or appliances that includes a coil and terminals thereof.

Abstract: A lithium secondary battery comprising a positive electrode a double oxide of lithium and nickel wherein said double oxide is formed by burning a mixture of a nickel compound such as nickel carbonate, and a lithium compound such as lithium nitrate, at an atomic ratio of Li/Ni of from >1.0 to 1.4, in either air or oxygen, and a method of manufacturing the same.

Abstract: An apparatus and method are provided for removing a stopper from a material holding container. A container holder is provided for immovably holding a stopper-fitted material holding container in place. While the material holding container is held by the container holder, the fitted stopper is grasped by claw members. The grasping claw members are driven by a linear drive source and swinging motion drive source. The fitted stopper is removed from the material holding container, while applying a pull-up force and twist force to the fitted stopper.

Abstract: An apparatus is provided for separating components of a brazed vane assembly by preheating the assembly to a temperature below the solidus of the base metal of the vane assembly and above the liquidus of the braze, then maintaining such temperature while separating the airfoil from the platform by pulling/pushing the airfoil and platform apart.

Abstract: The present invention includes a body implantable lead having a multipolar proximal connector, at least a first conductor coupled to at least one stimulating electrode, a sensor for sensing at least one physiologic parameter of the body, and a second and a third conductor coupled to the sensor. The sensor is hermetically sealed in a D-shaped housing. Sensor components are mounted onto a microelectronic substrate which is advantageously placed on an inner flat portion of the D-shaped housing. End caps having sealing rings, either glass frit or metal, are used to seal the ends of the shell. A hermetic seal is easily achieved by heating the sealing material until they re-flow between the end caps and the shell. Advantageously, the sensor terminals are sized to fit snugly within a narrow bore of the end cap which is then circumferentially welded closed. The D-shaped sensor is placed on a carrier having at least two lumens.

Abstract: An integrated circuit package, as well as a method for fabricating the same, is herein disclosed. The integrated circuit package of the present invention includes a cavity located within an assembly of laminated printed wiring boards. Such cavity provides two or more bonding tiers for connection with a semiconductor die. The contact pads are further connected, through conductive vias, to external connection means such as solder balls or pins. The semiconductor die is encapsulated with a molding compound through a transfer molding process. The present invention is especially advantageous in manufacturing pin grid array ("PGA") and ball grid array ("BGA")integrated circuit packages.

Abstract: Low dielectric absorption component connection points are created on a printed circuit board by cutting apertures in the board surrounding the points, leaving only narrow stems still connecting the resulting island to the board.

Abstract: So-called "retrofitting" of old style fluorescent lighting fixtures is carried out in a punch and die press provided with a special punch and die assembly having guide blocks positioned laterally of the punch and die for receiving pre-existing notches flanking the unnotched portion of the notched edge margin of a so-called "trougher raceway" strip portion of the old fluorescent lighting feature to be retrofitted, the punch of which assembly has cutting edges configurated for piercing the metal work strip backwardly of the notched edge thereof and at the ends of a longitudinal cut to be made and at the back ends of mutually spaced lateral end cuts to be made and for executing severing stokes along such cutting edges and thereby cutting out and removing a slug of metal exactly conforming in shape and dimension to the pre-existing guide notches.

Abstract: The plastic retainer is of skeletal construction sized to receive a nail clipper. The side walls of the retainer receive the nail clipper in friction fit manner and define a chamber to receive nail clippings. In addition, the forward end of the nail clipper is received in a recessed position with the jaws of the nail clipper behind a front wall of the retainer. The forward end of the nail clipper can be moved to a raised operating position with the jaws of the nail clipper above the front wall and in an exposed position for nail cutting purposes. Projections are provided on the retainer at the forward end to prevent the forward end of the nail clipper from moving out of the retainer when being raised into the raised operating position.

Abstract: A dry shaver has a housing with a head frame floatingly supporting an outer shearing foil. An associated inner cutter is driven to move in hair shearing engagement with the outer shearing foil. The head frame is formed with a stopper which is in use adapted to come into contact with a user's skin. The shaver is characterized in that the outer shearing foil is supported to the head frame by means of a floating mechanism which, when the outer shearing foil is depressed at a given portion by contact with the user's skin, allows an upper end of the depressed portion of the outer shearing foil to displace down beyond the stopper such that the stopper comes into contact with the skin for bearing the depressing force.

Abstract: A shaving system of the wet shave type includes support structure and blade structure secured to the support structure. The blade structure has an aperture with an annular sharpened shaving edge that is defined by main facet portions that converge at an angle of less than 40.degree. and supplemental facet portions that are extensions of the main facet portions and converge at an included angle of less than 60.degree. to define an annular ultimate tip portion. The annular ultimate tip of the sharpened edge defines a shaving plane and the bisector of the included angle defined by the supplemental facets is disposed at an angle (shaving angle) in the range of 15.degree.-35.degree. to the shaving plane.

Abstract: A cutting head stabilizer for controlling the movement of the substantially U-shaped cutting blade of a tire groover. The stabilizer facilitates the rapid and precise movement of the substantially U-shaped cutting blade about the gripping surface of a tire.

Abstract: For a scoring or utility knife typically used in a cutting stroke by being pulled toward the user, the use for assembling together right and left housings serving as a compartment for a retractable blade and as a hand grip, of a screw characterized by a laterally extending cylindrical head which is positioned to be engaged by a thumb of the hand grip to supplement the grip about the knife during its use, and also a front depending abutment to facilitate pushing the knife in a scraping stroke directionally away from the user.

Abstract: A hunting knife with a retaining member with dull sides located beneath the handle into which the blade can be retracted. This enables the knife to be handled safely, and to be placed in a holster without any sharp protruding edges which can damage the holster. Further, when the blade is extended, the dull sides of the retaining member do not damage animal organs or tissues away from the gutting area which makes it more efficient and easier to use. A keeper mechanism firmly locks the blade in its extended or retracted positions.

Abstract: A device to measure round objects, especially threaded objects is shown where three cam surfaces located on the interior of an annular ring are contacted by rollers which are advanced or retracted as a cam surface is traversed. The traverse of the cam surface allows change in diameter formed by the rollers and by locking the cam position, a fixed gauge is formed. The rollers directly contact the part to be measured. As applied to thread measurement, the three point gauge uses annular rollers to measure properties of thread fit and use when the rollers have the threads slightly offset from each other to make a pitch test set. The device allows a single gauge to handle at least 12 normal go and no-go gauging functions with just change of rollers for various fit and pitch classes. The gauge also is settable at special sizes near a standard size due to a range of adjustment.

Abstract: A construction framing tool is provide by an elongated body member and a pair of cooperative members at its opposite ends for assembling studs, joists and rafters between headers and footers. The tool includes a holder or cradle as part of one cooperative member and a shoulder as part of the other cooperative member.

Abstract: A measuring gauge for measuring both inside and outside diameters. The inventive device includes a main body having a plurality of extension members telescopingly received therein which may be extended therefrom to various lengths. The device further includes a pair of pivotally mounted OD legs operable to engage the outside surfaces of an object being measured, and a pair of pivotally mounted ID legs operable to engage the interior surfaces of the measured object. The OD legs and the ID legs are aligned such that indicia provided along the device can be used for both inside and outside measuring operations.

Abstract: Add-on filters for heated-air blowers and other electric motor-powered appliances. The filters are fabricated from a washable, flexible, reticulated foam which traps even minute solid and liquid particles and is adhesively attached to the blower housing. A template, which also serves as a protective cover for the adhesive, has index lines along which a blank of the filter material can be trimmed to size and configured for a particular blower intake.