Abstract: A motorized scissors includes a bottom casing to hold a first cutter blade and a motor and a battery power supply, a top casing covered on the bottom casing, a movable cutter holder to hold a second cutter blade, a looped handle pivoted to the top and bottom casings, and a looped switching lever controlled to connect or disconnect the battery power supply to the motor, the motor having an eccentric rotor disposed in an oval hole on the movable cutter holder and driven by the motor to impart a reciprocating movement to the movable cutter holder so as to open and close the first and second cutter blades.

Abstract: A pair of grip scissors comprises a generally U-shaped spring member integrally made of a resin and a pair of blade members attached to the respective free ends of the spring member. The respective free ends of the spring member are provided with an opposed pair of stoppers bulging toward each other. The respective stoppers come into stopping abutment with each other when the spring member is manually gripped. Each stopper has a mounting side face directed away from the mounting side face of the other stopper, and each blade member has a connecting portion attached laterally to the mounting side face of the corresponding stopper.

Abstract: The invention is directed to a motor-driven chain saw having a drive motor arranged in a housing. The drive motor drives a saw chain on a guide bar via a sprocket wheel. The guide bar extends forwardly in the longitudinal direction of the chain saw and has an elongated slot in its rearward end facing toward the housing. Stud bolts fixed on the housing extend through the elongated slot in a direction transverse to the longitudinal direction of the chain saw. The rearward end of the guide bar is clamped between the housing and a sprocket-wheel cover through which the stud bolts extend. A holding device separate from the sprocket-wheel cover is provided at the rearward end of the guide bar for holding the rearward end of the guide bar in its position on the housing when the sprocket-wheel cover is removed. This holding device reliably holds the guide bar for mounting the saw chain.

Abstract: An adjustable beading and grooving tool having a combination handle and fence within which a blade holder telescopes. The holder is a longitudinally slotted cylinder having two holder arms, or may be two half-cylinders, between which a blade may be fixed to project a desired distance from the holder, thereby establishing the depth of workpiece surface penetration. The blade holder is separately, adjustably fixed in the handle with the blade located a desired distance from the fence surface to establish the location of the profile to be formed with respect to the workpiece edge against which the fence bears during use.

Abstract: A border cutter for use with a cutter blade carrier for cutting a strip of carpet, the carrier having a blade plate for a cutting blade, the border cutter including a surface plate for movement along a piece of carpet, and having a guide edge and a cutting blade opening normal to the guide edge, and having spaced guides with aligned slots for receiving the carrier plate for positioning a blade at the blade opening. The spaced guides extend parallel to the blade opening, with each guide having a plurality of slots extending therealong in alignment with the slots of the other guide, providing a plurality of locations on the surface plate for the blade carrier. One of the spaced guides includes a channel for receiving a guide toe plate of a blade carrier support of the blade carrier.

Abstract: A multi-purpose combination tool for forming an enlarged T-square or, alternately, an elongated carpenter's level to facilitate installation of wall panels, doors, windows, signs and the like. The tool comprises an arm and a cross member rigidly mountable perpendicularly thereon. The arm and the cross member each have a central web portion with parallel flanges at opposite end edges of the web portion and spaced apart level vials secured within cutouts formed in each of the respective web portions. Ruler scales are situated along the end edges so that when the arm is rigidly mounted perpendicularly to the cross member, the scales share a common point of origin. In addition, the cross member, when so attached to the arm, forms a shoulder projecting outwardly therefrom against which the straight edge of a workpiece can be abutted while the arm itself is used as a guide for marking or cutting.

Abstract: A probe is mounted on a machine head which has mobility and readouts in three linear coordinate directions. The probe carries a stylus with a tip which has mobility relative to the head in three nonlinear coordinate directions which are nonaligned with the axes of head movement. A mathematical model, produced by a calibration technique before measurements are taken, translates readouts of the stylus tip's position in the nonlinear coordinates into values which are aligned with the coordinate axis system of the machine head. The probe has three flex wire motion guiding devices connected together in series, and each of these devices has a second member movably supported on a first member by flexible wires arranged in two nonparallel sets of parallel wires. The second member is thus constrained to movement in a single arcuate path which lies transverse to the longitudinal axes of the wires in both sets.

Abstract: A bow mounted multiple tuning gauge is disclosed having a multiple position dial indicators located against an arrow shaft. A multiple tuning gauge defines a support frame and head plate with dial indicators, mounted on a adjustable mounting assembly, with means for adjusting the device to properly measure the movement of the arrow shaft.

Abstract: A measuring arrangement (2) for continuously measuring undulatory irregularities in the running surface (4) of a rail (5) of a track (6) comprises a measuring trolley (1) having flanged wheels (8) which are able to roll on the track (6) and a trolley frame (7), and a distance detector (20) disposed on the trolley frame (7) for the contactless measurement of the distance from the rail (5), and a device (11) for recording, processing and issuing measurement signals. The distance detector (20) is mounted in a linear guide (13) connected to the trolley frame (7) so as to be displaceable in the vertical direction relative to the trolley frame (7) and so as to be vibration-damped.

Abstract: A combination finger and ring sizing device consists of a planular plastic body having a first portion with a plurality of openings formed therein and a second elongated portion that is integrally joined with the first portion and that extends outwardly therefrom terminating in a free end. The openings in the first portion sequentially graduate in diametrical size and define graduated ring sizes. The openings are identified as to ring size by indicia imprinted adjacent to the openings. The elongated second portion is formed with a tapered configuration that extends away from the free end of thereof and it includes a plurality of imprinted indicia designating ring sizes.

Abstract: A touch trigger probe for a coordinate measuring machine or machine tool has a stylus (14), which is biased into a rest position. The stylus has two independent supports, provided within a housing (10). In the embodiment of FIG. 1, the first support comprises a skirt (18) of a stylus holder (12), which is axially constrained on a surface (20) of the housing (10). The second support comprises a kinematic arrangement of cylinders (34) and balls (36), together with a planar spring (30), which together provide lateral constraint. The first support is biased by a much lighter force than the second support, so that its friction is very low. This reduces the lobing and hysteresis of the stylus movement, and thereby increases the accuracy of the probe.

Abstract: In a table saw having a rip fence and a miter slot, a new precision rip fence alignment gauge for quickly positioning the rip fence a precise distance from the saw blade for accurately cutting a workpiece. The precision rip fence alignment gauge comprises first and second symmetrical laterally separable gauge half assemblies. Each gauge half assembly comprises an elongated flat rod with an elongated miter slot engagable locator bar slidably connected transversely thereto such that the elongated flat rod is longitudinally displaceable relative the locator bar. The elongated flat rod is constrained to an accurate 90.degree. angle relative the locator bar with an alignment plate fixedly connected to the locator bar and slidably contacting an edge of the rod. A threaded stud projects upwardly from near an end of the locator bar and extends through a longitudinal slot through the elongated flat rod for slidably holding the edge of the rod in contact with the alignment plate.

Abstract: The invention comprises a measuring device for turbine packing rings which may be used for measuring the critical distance from the free ends of the packing ring teeth to the packing ring hook fit slot.

Abstract: Water-containing solids are dried in a fluidized bed, which is indirectly heated by at least one heat exchanger. Water vapors having a high water vapor content are withdrawn from the fluidized bed and a part of the vapors is passed as a fluidizing fluid through the fluidized bed. The remaining vapors are cooled to form an aqueous condensate. At least part of the aqueous condensate is contacted in a purification zone with a gaseous or vaporous stripping fluid. Purified condensate and contaminated stripping fluid are separately withdrawn from the purification zone. Water vapor is preferably used as a stripping fluid in the purification zone.

Abstract: This invention discloses a simple and inexpensive household implement to blot grease from one lot of prepared solid foodstuff, particularly deep-fried articles. It comprises an air-evacuating pump connected to a openable, closable, disposable, and flexible plastic bag interiorly lined with a layer of flexible liquid-absorbing material. Upon activation of said pump, blotting action occurs after the closed bag and the layer of liquid-absorbing are packed tightly against the greasy articles.

Abstract: A vacuum drying apparatus for refuse or the like includes a drying vessel which receives a material, e.g., refuse, to be dried; a heat recoverer connected to the drying vessel through a steam discharge passage extending from the upper portion of the drying vessel; means for exhaust and drainage mounted to the heat recoverer; a heat pump; a radiator provided in the heat pump; heat exchanger for the drying vessel which introduces the heat of a refrigerant flowing through a piping of the heat pump into the drying vessel; and heat exchanger for the heat recoverer which introduces the heat of the refrigerant flowing through the piping of the heat pump into the heat recoverer. The refrigerant piping of the heat pump is capable of being switched over from a flow of the refrigerant through a circulation system for heating the drying vessel and cooling the heat recoverer, and discarding the heat generated by the radiator.

Abstract: A high speed pin oven for drying the exterior coatings on open ended cans includes a U-shaped duct through which the cans mounted on a conventional pin chain are conveyed with the side and end walls of the duct provided with orifice patterns to direct high velocity heated air against the can bottoms and side walls to provide rapid heat up and drying. The uniform high velocity air flows also help stabilize the cans against movement, thereby preventing damage and dislodgement from the carrier pins. The generally vertical serpentine chain path through the oven includes substantially larger diameter turn sections which are defined by a series of circumferentially spaced small diameter sprockets to significantly reduce the affects of centrifugal force on the cans traveling through the turns. The combination of rapid drying and high chain speed provides a much smaller pin oven with greater can capacity.

Abstract: The present invention is directed to a method and apparatus for drying a web of paper utilizing impulse drying techniques. In the method of the invention for drying a paper web, the paper web is transported through a pair of rolls wherein at least one of the rolls has been heated to an elevated temperature. The heated roll is provided with a surface having a low thermal diffusivity of less than about 1.times.10.sup.-6 m.sup.2 /s. The surface material of the roll is preferably prepared from a material selected from the group consisting of ceramics, polymers, glass, inorganic plastics, composite materials and cermets. The heated roll may be constructed entirely from the material having a low thermal diffusivity or the roll may be formed from metal, such as steel or aluminum, or other suitable material which is provided with a surface layer of a material having a low thermal diffusivity.

Abstract: A shoe, the shoe including an upper and a sole, the sole including at least one fixed sole portion, the fixed sole portion being fixedly attached to the upper, at least one removable sole portion, the removable sole portion being movable between a first position substantially adjacent to the fixed sole portion and a second position substantially separated from the fixed sole portion, the removable sole portion extending across the longitudinal axis of the shoe, and a hinge apparatus for providing a pivotal movement between the shoe and the removable sole portion, whereby the removable sole portion may be moved to the second position to provide access to the interior of the shoe without removal of the shoe from the foot of a wearer.

Abstract: The invention is directed to a midsole for a shoe including one or more foam columns disposed between an upper and a lower plate. One or more elastomeric foam elements are disposed between the upper and lower plates. The foam elements are made of a material such as microcellular polyurethane-elastomer based on a polyester-alcohol and naphthalene-diisocyanate (NDI). In one embodiment, the foam, elements have the shape of hollow cylindrical columns, and may include grooves formed on the exterior surface. One or more elastic rings are disposed about the columns and are removably disposable in the grooves, allowing the stiffness of the columns to be adjusted. In a further embodiment, inflatable gas bladders are disposed in the hollow regions.

Abstract: The invention relates to a moisture management sock and shoe. The sock includes a multi-layer moisture-wicking panel extending from a front ankle portion of the sock to a front toe portion of the sock. The moisture wicking panel is generally co-extensive with an area of the foot covered by the tongue of a shoe. First and second single layer air circulation channels are formed in the sock, and extend along opposing sides of the moisture-wicking panel from the front ankle portion to the front toe portion of the sock. A moisture-management shoe includes a shoe tongue, a toe box area, and a moisture wicking inner liner residing adjacent the tongue and the toe box area for moving moisture from the foot and through the shoe for evaporation.

Abstract: An athletic shoe includes a substantially flat pump chamber in the sole of the shoe under the heel of the user, with a one-way valve permitting the drawing in of air when pressure is taken of the heel, and second one-way valve at the outlet from the flat pump which comes into play as air is being exhausted from the chamber. One or more pressure bladders for receiving air from the pump mentioned above, are mounted in the sidewalls of the shoe, toward the rear thereof adjacent the ankle. When the user is active, and is walking or running, the pump is automatically actuated to inflate the air bladders and to provide additional support for the foot and the ankle. The air bladders may be provided with a relief valve to prevent overpressure, and/or with arrangements for slowly leaking air out of the bladder so that when the user is resting, pressure on the foot and ankle is minimized. This last function may be accomplished, either by a bleed valve, or by a series of fine perforations in the walls of the bladder.

Abstract: A heel stabilizer is provided for the midsole of a shock absorbing sole in footwear. The stabilizer may be provided on a side of a shoe or may surround the entire heel area of the shoe. A stabilizer which surrounds the heel area may be formed as a single piece which wraps around the heel area or may be formed of several pieces joined to form a frame. The stabilizer includes cells when viewed in vertical cross section which provide lightweight, stable cushioning to the foot along the periphery of the midsole. The cells may take a variety of geometric configurations.

Abstract: A ski boot in the form of an overlap construction, comprising a boot body 10, respectively a shell or the like and a collar 11 fitted to the shell pivotally. The boot body 10 and the collar 11 are closable in front by clasps 12 and 13. The collar 11 is provided on the heel side with a mechanism comprising a guide 3, in which a strap 2 is vertically movable and is linked on to the boot body 10 by way of its ends which are remote from the guide 3. At one of the two ends of the guide 3 a lever 5 is linked on pivotally which by means of a projection 15 engages into the slot 7 of the guide 3 in the pressed down position of the lever 5 and limits the vertical movement of the strap 2.

Abstract: Ski boot having a rigid shell base surmounted with an upper including at least one front portion and one rear portion that are fastened, via at least a tightening system of the upper, on the lower part of the leg, and a flexion control device, both of amplitude and of force in the frontward direction located on the rear portion of the upper. The flexion control device includes an energy stirrup that is flexible and connected in a pivotable manner to the rear portion of the upper, this rear portion being pivotable on the shell base. The stirrup has at least one abutment adapted to cooperate with a complementary abutment obtained on the shell base when the upper is closed on the lower part of the leg of the skier in the skiing position.

Abstract: The invention includes a frame, to which is mounted a handle, an engine, drive wheels and an auger. The engine drives the drive wheels, making the apparatus self-propelled and also rotates the auger. Control levers are located on the handle to selectively control the on-off engagement of the drive wheels and the auger to the engine and to control the speed of the drive wheels. As the apparatus propels itself along a trench, the rotating auger moves dirt from the sides of the ground around the trench to inside of the trench. A packer wheel on the handle packs the dirt in the filled trench. The height of the auger relative to the ground is adjustable so as to minimize lawn damage. The auger has a double row of flighting and guide wheels positioned adjacent to the auger to enable the apparatus to be easily steered.

Abstract: Detachably connecting a snow plow assembly (20) to a vehicle (22). The snow plow assembly includes a vehicle mount frame (28) and a lift assembly (30). The mount frame is for connecting to a vehicle frame (26) behind a front bumper (24). The lift assembly includes an A-frame (42) and a lift frame (44) with the forward end (70) of the A-frame for supporting a snow blade (40). Means (75) is provided for pivotally connecting a rear end (74) of the A-frame to the lift frame so that the A-frame is free to rotate relative to the lift frame. Additional means (82) is provided for releasably connecting the lift frame to the mount frame whereby the lift assembly can be attached to or detached from the mount frame as a single unit while leaving the mount frame connected to the vehicle.

Abstract: A bucket for digging a ditch by moving the bucket longitudinally of the proposed ditch, rather than in the usual transverse direction, includes a top wall, a bottom wall, a rear wall and a pair of side walls diverging forwardly from the rear wall to an open front end of the bucket, one of the side walls being planar and defining a sharp corner with the bottom wall, the other side wall having a curved bottom end whereby a round bottom ditch can be formed by dragging the sharp corner through the soil longitudinally of the proposed ditch in a first pass, and then making a second pass through the soil using the curved end of the bucket.

Abstract: A characteristic feature of the present invention is that a damping unit is rovided between the casing, impact tool and elements of a pneumatic hammer. The damping unit may have a different design.

Abstract: A improved collapsible ironing table assembly (10) of the type comprising a flat table top (11) having a peripheral framing member (12) extending therearound, a pair of spaced apart channels (13) extending longitudinally of the table top and secured to the underside surface thereof, and a pair of diagonally crossed pivotal support legs (17, 17') supporting the table top and movable between an extended working position and a retracted out-of-use position, the improvements being such that the table assembly can be collapsed to a compact approximately linear storage configuration in which the pivotal legs (17, 17') lie flat alongside one another nested essentially within the recess formed between the opposed channels (13) on the underside of the table top, the table when fully collapsed, having an overall depth which approximately equals the depth of the table top peripheral framing member.

Abstract: A device for holding a variable number of rear-illuminated advertisement carriers formed of a poster-like blanks. Each advertisement carrier is mounted in a pocket that is open on one side and formed of a transparent flexible sheet material. The pockets can be positioned from a rear chamber to a visible front area by a drive device and then returned to the chamber. The pockets are connected into a disengageable chain of pockets that is contacted and driven by motor driven gears, belts or the like.

Abstract: A cavity is formed in the floor of a building for receiving the floor type advertising apparatus. A lower holding layer of magnetic material having an opening formed therethrough is located and secured in the lower portion of the cavity. An upper holding layer of magnetic material having an opening formed therethrough is attached to the lower side of a transparent layer and both the transparent layer and the upper holding layer are located in the cavity to allow the magnetic lines of force from the holding layers to removably secure the transparent layer and the upper holding layer to the lower holding layer in the cavity. A support layer is secured to the floor of the cavity within the opening of the lower holding layer for supporting an advertising layer.

Abstract: A sealed display assembly for displaying a sign or sheet poster includes a front cover frame mounted over the rear member and having a front vertical wall with a viewing opening therein, and top, bottom and side peripheral walls extending rearwardly from said respective margins of said front wall and shaped and sized to interfit with forwardly extending peripheral walls of the rear member. A compressible sandwich of elements includes a sign or poster-forming sheet fit between the cover frame and rear member. It includes an imperforate transparent panel mounted behind the front wall of the cover frame, the poster or sign-forming sheet mounted behind the panel wall of the cover frame, a compressible sealing gasket along the margins of the rear surface of the panel and extending around and sealing the sheet, and a body of compressible material behind the sheet and pressed by the cover frame against the rear member.

Abstract: A fire arm includes a casing, a barrel mounted on a recoil slide which slides over this casing, a loading and trigger mechanism and a loader including a case closed at one end by a bottom, a mobile feeder inside the case and a feeder spring (13) between the feeder and the bottom. The fire arm has a grip, a cavity for the loader extending through the grip from a charging opening to the inside of the fire arm. A loader stop is mounted on the casing in order to keep the loader inside the cavity. In addition, the fire arm includes an ejection spring situated at the height of the charging opening of the cavity, at least partly on the outside of the case, such that the ejection spring is stretched when the loader is inserted right to the bottom of the cavity so as to aid in ejecting the loader from the cavity, independent of the number of cartridges in the loader.

Abstract: A rifle sling for steadying the left arm of the shooter, comprises a length of band or strap material (1) which has an upper arm loop (8) at one end and a hand loop (6) at the other end, said loops being inter-connected by a middle portion. The upper arm loop (8) has a double portion extending between a tightening buckle (2) and an adjustment buckle (3). By using these buckles to adjust the length of the double portion, both the upper arm loop (8) and the middle portion of the sling can be adjusted to fit the shooter. The sling may be worn in a non-operable condition with the upper arm loop (8) tightened around the upper arm of the user and with the hand loop (6) tucked in under the upper arm loop. When assuming a shooting position, the user loosens the hand loop (6) and puts his four fingers through the loop, thus tensioning the middle portion of the sling and steadying his arm while the fore-end of the gun rests in his palm.

Abstract: The mounting device for a telescopic sight on a rifle comprises a mounting bridge (5) which carries a holder (6) for the telescopic sight and on one side at each of the front and the rear ends a fixed jaw (10) and on the opposite side two movable jaws (14) movable transverse to the mounting bridge (5). The receiver (2) of the barrel comprises two blind bores (3) running substantially radially relative to the barrel axis and offset from one another in the direction of the barrel axis (A) . Opposite each blind bore (3), on the other side of the barrel, there is provided an approximately half-moon shaped notch (4), the bottom surface (4a) of which running in the barrel direction forms a clamping surface for a movable jaw (13, 14). The two fixed jaws (10)each comprise a cylindrical retaining pin (11) which fits in one of the blind bores (3). Each movable jaw consists of a pivoting lever (13) with a locking nose (14).

Abstract: A rotatable fishing lure which includes an elongate central member that is selectively engaged by a fish hook having a point and an eyelet formed at opposite ends such that a first part of the hook proximate the point is embedded in a lower end portion of the central member and a second part of the hook proximate the eyelet is embedded in an opposite upper end portion of the central member. One or more spiral arms are attached to and extend outwardly from the central member and are responsive to a pulling force exerted on a fishing line secured to the eyelet of the hook for causing the lure to rotate about an axis of the central member.

Abstract: A collapsible crab trap is provided with a centrally-located bait feeder made of wire mesh material. The trap and bait feeder are movable between a collapsed configuration and an assembled configuration. When in a collapsed configuration, it is easy to store or transport. The centrally-located bait feeder apparatus is constructed in such a manner that the crabs cannot remove an entire piece of bait from the bait feeder. Another feature of this crab trap is that the two side panels are weighted along their upper edges to positively open the side panels when on the ocean bed for the catching of crabs. These weighted side panels also provide a stable placement of the crab trap in strong moving currents.

Abstract: An insect trap comprising: a base portion having a trapping surface; adhesive material placed on the trapping surface; and a mounting structure for so mounting a light source above the trapping surface that fleas are attracted to the trapping surface and trapped by the adhesive means. The mounting structure extends over no more than 60%, and preferably between 25% and 40%, of the trapping surface. The flea trap also preferably comprises a mesh cover for covering the trapping surface in a manner that allows fleas to reach the trapping surface but prevents incidental contact therewith. A light cover is preferably provided to cover the light source, and the uppermost point on the light cover should be located no more than 3 inches above the trapping surface.

Abstract: A device for deterring bird intrusion to a space includes permanent magnets mounted on a carrier supported at the space to be protected, the carrier being supported to be rotatable so the that by rotation of same, the bird deterring magnetic field established has intensity and/or orientation change, this with employment of a field with induction of abnormally high gauss level, creates a condition highly physiologically discomforting to a bird encountering the field and such much so that the bird leaves the space area and/or its environs.

Abstract: A fumigation apparatus is provided which uses mixed gas of hydrogen phosphide and methyl bromide, said mixed gas containing hydrogen phosphide at a high concentration, and which is free from the risk of ignition and safe. The apparatus, furthermore, is capable of fumigation that can completely kill noxious insects infesting green plants within a short time, exhibiting very little phytotoxicity on the plants and leaving extremely little residual fumigating agent after fumigation. Said apparatus is composed of (a) a system for purging air and hydrogen phosphide in a hydrogen phosphide path; (b) a system for hydrogen phosphide supply and transfer from a hydrogen phosphide bomb to a mixer through a humidifier; (c) a system for methyl bromide supply and transfer from a methyl bromide bomb to the mixer; and (d) a system for transferring the mixed gas from the mixer to a fumigation chamber.

Abstract: A fishing fly, particularly of the dry fly variety, which orients itself when cast so that the point of the hook is naturally pointing upwards when the fly lands on the water (W). The fly is of a reverse and inverse design, having hackles (34) and wings (28) positioned on the curved shape portion of the hook (18), the wings directed tangentially along the shape portion at an angle to the spear of the hook (20). The dry fly is tied by winding the hackles axially around the shape portion of the hook so that the hackle fibers protrude radially in a plane generally parallel to the shank of the hook between the shank and spear of the hook. Preferably, the hook has a wide gape and an elliptical eye approximately coplanar to the shank and shape of the hook so that the eye can remain secured in a vise throughout the fly-tying process.

Abstract: A combination vase and air fragrance dispenser comprised of two interconnecting vessels, one to hold natural or artificial flowers, the other to hold air treatment material and dissipate fragrance to the atmosphere. Its two-vessel construction makes it possible to completely separate flowers and air treatment material, preventing contamination of the flowers.

Abstract: A closure assembly and strut for a pivoting closure which automatically operates to close the closure when rain begins to fall. The closure assembly is provided with two pivoting arms which, when pivoted to their extreme positions, would allow a slot provided on a hinge portion of each arm to align into which a soluble restraining element is placed. The extremity portions of each arm are used to support the closure in an opened position. When it begins to rain, water would hit the soluble element directly or would indirectly be directed to this soluble element through capillary action which would soften the soluble restraining element, allowing a spring to trip the pivot out of alignment with the ends, thereby precipitating the collapse of the closure element. Once the closure element collapses, the closure would close due to the force of gravity.

Abstract: A window balance system for a tilt sash uses a pair of constant force curl springs having curled convolutions carried by sash shoes and free end regions mounted in sash shoe channels above the region of travel of the shoes. The recurl tendency of the springs imparts a lift to the curled spring convolutions, and the shoes transmit the lift to the sash. The springs recurl into the convolutions as the shoes rise and uncurl from the shoes into the shoe channels when the shoes move downward, and neither movement requires the springs to slide frictionally within the shoe channels. Each shoe is preferably formed of two identical halves that are assembled to trap the curl spring along with a cam that locks the shoe when the sash tilts.

Abstract: A weatherstrip for attachment to the body of a vehicle having a flange edge, such as a door, is located at an interface between the flange edge and a movable window. The weatherstrip consists of a longitudinally extending molding formed by an injection molding process which has in cross-section a first and second leg joined together by a web to define a U-shaped and a first channel between the first and second legs. At least one retainer clip may be integrally formed with the molding to define a second channel which is smaller than the first channel for accepting the flange edge.

Abstract: A steel ball machining apparatus comprises a cylindrical ball storing vessel having an opening, a steel ball machining mechanism, a steel ball supply path for supplying steel balls to said machining mechanism from the opening in said vessel, a steel ball discharge path for discharging the balls from said machining mechanism, and an elevating conveyor is provided between the discharge path and the cylindrical vessel, the elevating conveyor having a ball receiving vessel which is adapted to move between a lower position in which the ball receiving vessel aligns with the discharge path and an upper position over the cylindrical vessel, a lifter of said ball receiving vessel, a ball return path provided at the upper position for feeding the balls from the ball receiving vessel over to the cylindrical vessel, the return path having a ball exit adapted to discharge the balls to said cylindrical vessel at radially different positions therein.

Abstract: The front end portion of a rotational blade is accurately located in a non-contact manner although the quantity of wear of the blade has been changed. The structure is so arranged that a pair of prisms are disposed to oppose each other at a predetermined interval, either of the two prisms converges light beams emitted from a light emitting diode within a predetermined interval, and the residual prism again converges the light beams which have been diffused after they have been converged. A photodiode receives beams converged by the other prism. The disturbance light and noise are eliminated by an amplifier so as to fetch only light emitted from the light emitting diode. A blade shields light beams converged at the central portion located at a predetermined interval, while reading devices read the quantity of light received by the photodiode and as well as read the displacement of the blade.

Abstract: An improved drill bit having a shank of larger diameter than the body of the drill has an intermediate section rearward of the point section of the drill of smaller diameter than the point, and a longitudinally elongated, enlarged diameter root section joining the rear end of the intermediate section to the shank. The reduced diameter of the intermediate section provides a clearance space, preventing rubbing of the wall of a hole drilled by the bit, while the enlarged diameter root section increases the resistance of the bit to breaking. An improved method of making the enlarged-root drill bit includes inclining a relieving wheel at a substantially smaller angle to the longitudinal axis of a blank than the angle at which the blank was fluted. In one embodiment having a front tapered tip made by the novel method, rearwardly directed teeth are formed at the rear plane of the drill point, by fluting and relieving steps alone, without requiring an additional machining step.

Abstract: The method and apparatus for honing and treating the pad engaging surfaces of vehicle brake rotors or discs consisting of engaging the rotor surface with a plurality of moving abrasive elements mounted upon flexible resilient stems wherein a smooth finished surface is formed. The abrasive elements are rotated about an axis which may be coincident with the brake rotor axis of rotation during machining, or may be offset and parallel thereto, to produce a basket weave machining pattern. A plurality of hone holders may be used when the hone axis of rotation is offset relative to the rotor axis whereby both of the rotor's surfaces may be simultaneously finished. The practice of the invention also permits the braking surfaces of aluminum alloy rotors to be oxidized to form a hard, wear resistant finish thereon.