Abstract: A joint of the type in which an outer member and an inner member are each mounted through a ball cage having plural balls mounted in its respective ball windows. The respective balls are in engagement with respective pairs of longitudinally extending ball grooves made in mutually facing surfaces of the respective inner and outer two members, the ball cage is formed at its outer spherical surface with respective longitudinally extending cut-out grooves continuing to the respective ball windows. The respective cut-out grooves are so formed as to have respective contours substantially conforming to respective partition walls between the respective adjacent ball grooves that are formed at the periphery of the mouth of the outer member, so that each partition wall is insertable in each groove.

Abstract: In a rigid (non-sliding) homokinetic or constant velocity universal joint, an inner joint member is positioned within an outer joint member. The inner joint has a spherical outer surface which is guided by a spherical inner surface of the outer joint. Grooves in each of the joint members are arranged in pairs with a ball seated in and extending between the grooves in each pair for transmitting torque from one joint member to the other. Each groove is formed on a circular arc with a pair of grooves in the same joint member being formed on the same circular arc. The planes extending through the center line of two adjacent pairs of grooves in the same joint member intersect the axis of rotation of the joint members at a position spaced outwardly from the center of the joint.

Abstract: A simple and easily manufactured assembly plate for receiving cam parts of a knitting machine in a predetermined position and in which the assembly plate is easily positioned in a knitting machine. The plate is provided with positioning projections, pins or the like which properly position the cam parts and which are formed by simple stamping procedures or by casting or extruding plastic materials.

Abstract: For advancing the main drum in a circular knitting machine there is provided a device comprising a ratchet wheel rigid with the drum and having five rows of teeth axially spaced thereon. Five pawls are movable back and forth for engagement with the teeth of a respective row. A primary pawl can be disengaged from the ratchet wheel under control of the main chain, and four secondary pawls reciprocate in regular succession so as to perform two back and forth movements in the span of two revolutions of the needle cylinder(s). The secondary pawls have a front end wider than the axial width of the teeth. Between the rows of teeth there are arcuate members having a circumferential length depending on the knitting program and a height such as to disengage the pawls from the respective teeth. The arcuate members may be easily replaced to provide further advancing sequences for the main drum.

Abstract: A machine for dyeing and drying stocking articles and like garments comprises a vessel for containing the stocking articles to be processed, a plurality of horizontally extending perforated diaphragms within the vessel on which stocking article cakes are stacked in superimposed layers, a tubular element penetrating centrally the perforated diaphragms and extending in the vessel in an axial direction up the mouth thereof, a driven propeller within the tubular vessel, a closing cover fixed detachably to the vessel, an inlet and outlet for a processing bath, heaters for heating the bath and an inlet and outlet for drying air. The perforated diaphragms have tiltable portions for allowing loading and unloading operations.

Abstract: A clothes washing machine of the type having recirculation of water from a tub into a perforated basket within which the clothes are received with a mechanically delayed action clutch driving both the agitator during wash and rinse cycles, and the basket during spin cycles. The mechanical delay in the case of the wash or rinse cycles enables a recirculation pump to bring the water level in the basket to the operating level after the machine fill prior to initiation of agitator drive. In the case of the spin cycle, the water level is reduced by a drain pump during the delay interval prior to initiation of the basket spin. The mechanical delay is introduced by a retarding action on the centrifugal drive clutch whereby after start of rotation of the drive motor, the full engagement of the centrifugally actuated clutch is delayed by a rotary damping action consisting of a washer caused to rotate through a volume of silicone liquid enclosed in a container.

Abstract: An apparatus for the liquid treatment of cloth consists of a U-shaped liquid tank for a treating liquid, a cloth inlet passage and a cloth outlet passage located in the tank and each having a relatively narrow spacing between vertical endless net conveyers which define the opposed sides of the passages. A plurality of liquid jet nozzles are provided along the cloth passages to spray a treating liquid against a cloth so that the cloth collides alternately with the conveyers on the opposite sides of each passage. Another cloth passage is located in the treating liquid below and forms a connecting passage between the cloth inlet-and outlet-passages. The cloth passes in a folded zigzag state through the another cloth passage. This apparatus is particularly suitable for the liquid treatment of an easily expandable cloth such as a knitted cloth by piling a plurality of the sheets thereof en bloc.

Abstract: A spray washing system for garments including aspray station through which garments are transported in a generally vertical plane. The spray station has a set of vertically spaced pipes with parallel axes extending generally parallel to said plane. Each of the pipes forms an acute angle with the horizontal. A spray nozzle is mounted on each of the pipes and is arranged to direct a spray against garments in said plane. The pipes are rotatively oscillated about their axes to cause the spray area of the nozzles mounted thereon to oscillate. The vertically spaced pipes are interconnected so as to be simultaneously rotatively oscillated. Bars are rigidly connected to and extend from the pipes. Links are rotatively connected to the bars of two vertically spaced pipes on rotative axes parallel to the pipe axes, and provide for simultaneous movement of the interconnected bars.

Abstract: The invention consists of a screw cap assembly including a manually operable handle piece rotatable in both directions, a cylindrical case mechanically coupled with the handle piece for unitary rotation therewith, a key-operable cylinder lock mounted in the cylindrical case and capable of rotating only partially and independently therefrom when key-operated from outside, and a screw plug proper operably connected with the handle piece through the cylindrical case. The plug can be rotated in both screw-advancing and screw-retracting directions when the cylinder lock is key-operated to its unlocked position but only in the screw-advancing direction when the lock is in its locked position.

Abstract: A locking device for preventing the theft of certain vehicles equipped with automatic transmissions. The device is designed to mount on the shift lever of certain types of automatic transmissions and prevent shifting out of the PARK position, thus preventing theft of the automobile, even though the engine may be started by unauthorized means. The device is readily attachable to automatic transmission shift levers of the type for which it is designed, cannot be removed without a key, is positive in operation so as to prevent shifting of the transmission when locked, is simple and economical to manufacture, and is reliable and effective in preventing unauthorized operation of a vehicle.

Abstract: A plug for a key operated lock is provided with a plurality of bores transverse to the key slot formed through the plug. The bores accept studs which extend into the key slot to delimit the design of key blanks from which keys, fitting the lock, can be constructed. The selection of bores to contain studs permits rapid change of key blank designs for the lock.

Abstract: A tumbler lock is disclosed comprising a body and a cylindrical plug having an axial key passage rotatably mounted in the body. The plug and the body have aligned radial holes containing respective sets of tumblers, the tumblers in the body holes being spring urged toward the plug. The holes in the body have an outer conically tapering portion into which the respective tumblers are wedged prior to assembly of the lock and during assembly the tumblers are pressed out of these conical portions by a tool inserted into an opening in the body.

Abstract: A cylinder lock, especially for motor vehicles, consisting of a rotor with tumblers, which is operatively connected with locking elements; with a key pulled off in the locking position, the tumblers engage in a tumbler channel provided in the inner wall of a stator receiving the rotor; a cut-in or groove constructed as intentional breaking or rupturing place is provided in the rotor adjoining the last tumbler, as viewed in the key insertion direction, which ruptures when a springily engaging locking action between the rotor and the stator not accessible from the outside has taken place during a forcible pulling out of the rotor.

Abstract: A die holder has adjacent to its front end an annular step portion comprising a steep wall and a gradual wall tapered from the steep wall to the front end, the annular step portion being adapted to provide an annular space between the step portion and an inner surface bounding a billet receiving bore in a container when the die holder is inserted in the bore. During indirect extrusion, foreign impurities such as dirt, lubricant, metal oxides, and the like deposited between the bore surface and the billet are trapped and collected in the annular space against entrainment into an extruded product being formed. An annular ring partly defining the steep wall acts as a barrier that prevents the impurities from getting therepast and minimizes skull formation on the bore surface. An annular butt formed by accumulations of the impurities in the annular space and a butt end of the billet are removed from the container by means of a shear.

Abstract: A portable tool and associated method for exerting crimping-like pressure on a tubular-like object, such as a boiler tube or the like, for deforming the latter from the exterior thereof, in order to diminish its peripheral dimension and facilitate its removal from secured relation to a boiler drum or the like; the tool comprises a frame with a power unit coacting with the frame and having a force applying head coupled to the power unit for applying a crimping force along an area running generally lengthwise of the exterior of the tubular-like object, when the latter is held between the frame and the head.

Abstract: A dent straightening tool having a manually graspable handle affixed to one end of an elongate shaft and a work piece engaging, helically threaded member affixed to the opposite end of the shaft. The threaded member has a substantially constant radius root with a blunt tip provided at the distal end of the root. The thread begins from a minimum radius at the blunt tip and then progressively increases in radius along the length of the root to attain a size substantially larger than the radius of the root so that the depth of the thread is substantially deeper than the radius of the root. Also, the flat length of the thread, as measured along the root, is at least one-half of the pitch length of the thread.

Abstract: A test sample support for flat plate test samples used in the simultaneous laser, wind tunnel and tensile machine testing having a cantilever box frame member supported on the tensile machine with an adjustable sample alignment member and a stationary sample alignment member supported on the box frame member. Test sample backing members are adjustably supported on box frame member adjacent the stationary sample alignment member and on the adjustable sample alignment member. Two sample retainer buttons are secured to the stationary sample alignment member and two sample retainer buttons are secured to the adjustable sample alignment member. The stationary sample support member is positioned upstream of the test sample and has a sharp leading edge to provide a well defined flow field over the test sample.

Abstract: A portable, personal monitor measures and displays the concentrations of toxic substances to which an individual wearing the monitor has been exposed during a shift or other work period of the individual. The monitor is constructed in a compact, portable form, and it is enclosed within an outer case for wear by the individual during the work shift.

Abstract: An apparatus is disclosed for the continuous measurement of the level of liquid in a container, wherein a flexible cable extends into close proximity or engagement with the floor of the container and comprises the oscillation determining element of an oscillator. The cable has a length greater than the distance between its mount to the container and the bottom of the container, and is doubled over at least part of its length to form an arc or loop at the container floor. A support engages the cable adjacent the container floor and holds the cable so that the arc or loop maintains its position relative to the container floor even though the container floor may sag or bulge, or the spacing between the floor and top of different containers varies because of manufacturing tolerances and the like.

Abstract: A sensor (16) produces an electrical signal corresponding to the pulsating pressure in a high pressure fuel line (13) leading to a fuel injection valve (14), the pulsations being produced by opening and closing of the valve (14). The electrical signal and a reference signal are fed to a cathode ray tube display unit (18) to produce a Lissajous figure. The shape of the Lissajous figure indicates whether the Schnarren phenomenon is present and, if so, to what extent. The frequencies or amplitudes of the electrical signal and reference signal are compared to produce a signal indicating the difference therebetween which is fed to a digital display unit (22).

Abstract: This invention relates to a device for providing data for determining a non-horizontal change from one direction to another of a reference axis fixedly associated with a body.The apparatus uses gravity sensor devices, such as accelerometers, to provide data for determining change in both azimuth and slant angle. In some embodiments that data may be derived from the signal of a single accelerometer.Some embodiments of the invention are probes for surveying in geological boreholes. In some of such embodiments a single gravity sensor is fixed to a mass which is mounted for free rotation.Drive elements are provided whereby the mass may be rotated and then allowed to rotate undriven.Thus the direction in which the sensor is responsive to the gravity vector is, due to inertia of the mass, independent from random axial rotation of the probe.

Abstract: Four curtains are drawn or released together to set the measuring aperture of an air-flow measuring box at the desired area and the linear velocity of flow through the aperture is measured by a single-probe velometer normally held with the probe tip essentially at the center of the aperture, a perimeter sealing strip blocks unmeasured air flow around the back of the curtains. A box-like hood guides the air flow from a ceiling outlet under investigation to the curtained aperture and is provided with diagonal vanes to keep the measurement from being falsified by cyclonic air movement. The box-like hood folds up for storage or transportation.

Abstract: Thermistors comprising transition metal such as iron, rare earth of the lanthanide series or yttrium, and oxygen exhibit sufficient independence to variation in oxygen partial pressure over a range of exhaust gas conditions of internal combustion engines as to make them particularly suitable for temperature compensation of oxygen sensors such as those derived from titania as well as temperature sensing in other oxygen varying environments.

Abstract: A device for measuring the rate at which pressure in a bladder is increased by the action of a joint and/or muscle is disclosed. The device permits the time elapsed between predetermined pressure values to be recorded. Preferably the peak pressure reached is also recorded. Such a device finds application in the treatment of patients with rheumatoid arthritis, multiple sclerosis, strokes, head injuries with hemipareses and neuro-muscular diseases.

Abstract: A method and apparatus for removing moisture from a sample stream of gas while preventing dilution of the concentration of components of successive increments of the sample stream of gas.

Abstract: First and second sample-hold circuits sample and hold the atmospheric pressure alternately every time when a vehicle travels a predetermined distance. A signal representing a difference between the holding values of the first and second sample-hold circuits, that is, a signal representing a slope of the road on which the vehicle is travelling is displayed through a latch circuit.

Abstract: In a method for detecting foreign matters present in gas sealed electrical apparatus including a tank at the ground potential and containing an insulating gas and a high voltage live part disposed in the tank, a voltage is applied to the high voltage live part causing generation of ultrasonic waves and the ultrasonic waves propagated through the tank is sensed by a sensing element mounted on the tank.

Abstract: A non-destructive evaluation technique particularly suited for in situ testing utilizes significant changes in internal friction damping (IFD) as an indicating factor. A baseline for the specific damping capacity of an object is determined and a tolerance range is established from the baseline. Measurements of the specific damping capacity are periodically made and checked to see if they are within the tolerance range. Unexpected changes in specific damping capacity indicate the presence of an incipient flaw in the object. The evaluation technique can also be used to locate flaws, monitor crack growth and predict useful life. Apparatus for measuring specific damping capacity is also disclosed.

Abstract: A positioning determining system using a delay element and driver transducer for producing a traveling wave in the delay element, the presence of a traveling wave being detectable by a receiver transducer for determining the relative positions of the driver and receiving transducers. In accordance with the invention, a driver transducer, the delay element, and a second transducer form a self-excited feedback loop oscillator, the frequency of oscillation of which is determined by the spatial filtering provided by the second transducer so as to generate a traveling wave having a selected wavelength. The system includes automatic frequency selection to compensate for position sensing errors due to changes in the velocity of propagation of elastic waves arising because of temperature effects on the delay medium.

Abstract: A conduit conducting a dirty gas is connected by one line to an interface device connected by another line to a pressure measuring device having a cavity and a diaphragm defining one wall of the cavity. The interface device has a pair of chambers in fluid communication at their upper ends. The bottom end of one chamber is in fluid communication, via the one line, with the conduit conducting the dirty gas. The bottom of the second chamber is in fluid communication, via the other line, with the cavity in the measuring device. The second chamber, the cavity and the line connecting them are filled with a liquid which keeps dirt in the dirty gas from entering the cavity but transmits the pressure of the dirty gas to the diaphragm in the cavity.

Abstract: A measuring system (10) for measuring the flow of solids (w.sub.s) in a fluid stream is disclosed which utilizes only two differential pressure measurements (.DELTA.p.sub.1 ; .DELTA.p.sub.2) indicating the pressure drop across different points of a venturi (12). The fluid having the solids entrained therein is passed through the venturi (12) and pressure drop measurements are taken at points of the venturi (12). These pressure drop measuurements (.DELTA.p.sub.1 ; .DELTA.p.sub.2) are transmitted to a microprocessor (15) which calculates these measurements (.DELTA.p.sub.1 ; .DELTA.p.sub.2) according to a predetermined empirical formula to yield an output signal indicative of the flow of solids (w.sub.s) through the venturi (12).

Abstract: A mechanical memory device comprising (a) a bar, (b) means supporting the bar for substantially linear movement, (c) input means for linearly moving the bar to plural selected positions, and (d) plural bar position sensing and actuating means, each having means for sensing a selected position of the bar, for storing the sensed bar position and for actuating the bar to cause it to occupy the position thereof corresponding to the stored position.

Abstract: The supporting structure of a rear wheel derailleur mechanism for the rear wheel of a bicycle or like vehicle is connected to the carrier element for a chain guiding sprocket by an elongated link and an elongated guide. First and second pivots connect respective first longitudinal end portions of the link and guide to the supporting structure, and third and fourth pivots connect the second longitudinal end portions of the link and guide to the carrier element. A fifth pivot connects respective intersecting central portions of the link and guide. The axes of the several pivots are at least approximately parallel. The three pivots associated with the link practically prevent shifting of their pivot axes relative to the link and the connected devices, whereas the pivots at the end portions of the guide permit translatory movement of their pivot axes.

Abstract: A tooth grip belt pulley of deformed sheet metal with a hub formed in one piece therewith and constructed pot-shaped; the cylindrical wall of the hub is constructed as an interference seat for a shaft end and the bottom wall thereof as axial abutment for the shaft end; the edge of the hub passes over into webs of the tooth grip belt pulley.

Abstract: In a power transmission unit, a protrusion is provided on an inner wall of the transmission housing to be splashed with lubricating oil pumped up by rotation of an idler gear on the idler shaft, and an oil receiver is arranged under the protrusion to receive the lubricating oil dropping from the protrusion thereby to convey the oil into the bearing at one side of the idler shaft.

Abstract: A roller hydraulic valve lifter or similar cam follower mechanism wherein the follower of such an assembly or mechanism is provided with a pair of spaced apart struts to receive the opposed free ends of a roller shaft carrying a cam follower roller. Each free end of the roller shaft is provided with opposed flats parallel to the axis of the shaft to define abutment shoulders which engage the struts to limit axial movement of the roller shaft in the follower. Each strut is provided at its free end with a tang that is bent over to partly encircle a free end of the roller shaft whereby to retain the cam follower roller and roller shaft in unit assembly with the follower.

Abstract: A flywheel for small size tape recorders is disposed in peripheral frictional engagement with an output wheel of a motor for rotation in the opposite direction from the latter. The ratio of moment of inertia of the rotating motor portion about the output shaft to the moment of inertia of the flywheel about its support shaft is chosen equal to the reciprocal of the ratio of their angular velocities, thereby causing a substantial balancing of the angular momentum of each other.

Abstract: An electrically operated fastening appliance with an automatic controlling clutch mechanism by which on termination of the fastening operation the power transmission from the motor (13) to the driving spindle (36) is instantly discontinued to prevent application of the excessive torque to the screw-threaded connecting means to be tightened and transmission of undesired reversing torque.The automatic controlling clutch mechanism includes a central gear (40) secured to a drive shaft (38) derived from the motor (13), planetary gears (30) supported on a planet carrier (32) and an annulus member (29) with an internal gear (28) accommodated turnably in a cylindrical casing (14) and clutch elements interposed between the annulus member (29) and the casing (14).

Abstract: Attachment for a tightening and removing device of objects such as bolts, nuts and the like, for transmitting the turning force of the device to the objects when disposed in the innermost section of a narrow gap, comprising reaction force receiving means to definitely receive the reaction force generated in the attachment during a fastening and removing operation of the objects when the turning force inputted from the device is transmitted to those objects.

Abstract: Trim strip from a web slitter is received in a chute passageway which guides the trim strip away from the slitter. Low velocity air is supplied in the passageway to provide air lubrication between the chute structure and both opposite faces of the trim strip which thereby floats away from the slitter smoothly and efficiently.

Abstract: Apparatus for providing various different lines of perforations in a paper sample for use in a testing apparatus. The perforating apparatus includes a replaceable blade mounted on a base. A roller is mounted on the base for movement along the blade. Means are provided for adjusting the pressure applied by the roller to the paper sample disposed between the blade and roller.

Abstract: A clamping assembly for clamping a block of wearable material for guiding a band saw blade to maintain the blade in alignment at a working station. The block of wearable material is formed with a dovetail adjacent a rear face remote from the wearing face of the block, and the clamping assembly includes clamping elements having inclined surfaces mating with the inclined surfaces of the dovetail to provide clamping and gripping forces and inwardly directed drawing forces in the block. The clamping elements are separated in the clamping region by a gap permitting them to be drawn towards one another and thereby to exert a clamping force on the dovetail of the block of wearable material. The clamping elements are dimensioned so that one element behaves as a cantilever spaced from the other element, which thereby maintains a fixed relationship with a supporting datum surface. The clamping elements may be integral with one another or provided with contacting surfaces adjacent the rear face thereof.

Abstract: A cutter for cutting thin boards, including a base provided with a plurality of guide grooves on one side in such a manner that they are arranged so as to form progressively larger angles with the under surface of the base. A cutting blade is mounted in each of these guide grooves in such a manner that all the cutting blades fall on the same plane with each other.

Abstract: In an electronic musical instrument of a keyboard type wherein waveshapes with different tone colors read out from waveshape memories are mixed together at a mixing ratio according to a control signal and the resultant signal is converted to a corresponding musical tone, the control signal is varied with lapse of time and also is controllable in response to the initial speed at which a key of the keyboard is depressed and to the strength of pressure of the key being depressed, in addition to time lapse. Thus, the pattern of tone variation can be variously controlled.

Abstract: Data-processings for spectrum signals which express the frequency spectrum distributions of corresponding tone waveshape signals, are performed on a frequency domain. The processed spectrum signals are transformed to the corresponding tone waveshape signals by the Fast Inverse Fourier Transform algorithm. Thus filters of desired characteristics on a frequency domain can be composed of simple and inexpensive circuits, and musical tones having desirable tone qualities with abundant varieties can be easily generated.

Abstract: In a musical instrument having one or more tone generators in which a plurality of data words corresponding to the amplitudes of a corresponding number of evenly spaced reference points defining the waveform of one cycle of an audio signal are transferred sequentially from a note register to a digital-to-analog converter in repetitive cycles at a rate proportional to the pitch of the tone being generated, apparatus is provided for adaptively computing the set of data points in response to values of preselected harmonic coefficients. The computation apparatus advances past all harmonic coefficients of smaller magnitude than a selected threshold thereby reducing the computation time and making the instrument capable of responding to time varying tonal changes.

Abstract: An adaptive washer assembly comprises a washer body which provides an inner flat surface which is abuttable against a base structure such as a timber bridge member to which a conventional bolt and the attached washer body will be attached in for example, timber construction. The washer body is provided with an outer curved surface, the outer surface and the inner face intersecting to form a periheral edge portion to said washer body. In the preferred embodiment, the washer body is thicker at the center portion thereof, and a substantially cylindrical bore is provided through the washer body at the thickened central portion thereof. The central bore can be provided with a diameter substantially equal to or larger than the diameter of the shaft portion of the bolt to be attached through the washer bore to the base structure which could be, for example, a wooden timber member.

Abstract: For securing such materials as insulation to sheet metal, a nailable fastener has at one end of its metal shank three or more lobes which interpenetrate the sheet metal and bend radially outward to become firmly embedded in the sheet. Each lobe of the fastener, as manufactured, has an inner camming surface which slopes outward to the rounded outer surface, which is a continuation of the generally cylindrical shank. The intersection of these two surfaces forms a semi-elliptical cutting edge terminating in a tip. The tip and the cutting edge progressively slit and raise a pocket in the sheet for each lobe, as its inner camming surface bends the lobe outward. The resulting radial interpenetration secures and stabilizes the fastener.

Abstract: An adjustable spacer-cam assembly designed to close gaps which fall within a predetermined range of widths. The assembly includes: a cam plate which has a peripheral increasing-height ramp, a spring washer, and a threaded fastener. Serrations on the underneath surface of the fastener head engage serrations on the upper surface of the washer forming a friction clutch by which the cam plate is driven. Torque is transmitted from the washer to the cam plate by projections on the bottom of the washer which engage in apertures in the cam plate. The spacer-cam plate is driven until the ramp wedges between the members forming the gap causing the friction clutch members to slip.

Abstract: A feature of this invention is the provision of a booster charge of liquid propellant from a main supply to adiabatically compress a quantity of gas and then progressively inject the booster charge into the heated gas.