Abstract: An actuator device responsive to a pressure variation in its surrounding environment comprises a wall structure forming a small chamber having a pressure activated inlet check valve that allows fluid to flow into the chamber. One wall portion of the device is movable to an extendable position when pressure within the chamber exceeds the outside pressure.

Abstract: A gauge means according to the present invention comprises a gauge face and indicator means disposed adjacent the face, at least a part of the indicator means extending along the face in a first direction, and at least a part of the indicator means being movable along the face in a second direction generally transverse to the first. A first scale comprises a first series of indicia marks progressing longitudinally along the extending part of the indicator. Each mark of the first series corresponds to a given value of a first parameter. A second scale comprises a second series of indicia lines each of which extends along the face angularly with respect to the first and second directions. Each line of the second series corresponds to a given value of a second parameter. The movement of the movable part of the indicator means is responsive to a third parameter. The first, second, and third parameters are functionally related.

Abstract: Electrically actuated apparatus for sampling liquid from a body thereof provides visible countdown of the time interval between successive samplings and also provides visible countdown of the duration of the time in which individual samples are being taken. The samples are propelled by fluid from an external or internal source of pressure, whichever is greater, interconnected for each sample duration period to a sample intake chamber in the body of liquid being sampled.

Abstract: A transmission for connecting a prime mover with a load, such as vehicle wheels, in which the transmission is of group construction with a primary group shiftable under load and at least one other group which is not shiftable under load. The group shiftable under load provides for at least two forward speeds and a reverse speed at the main output shaft of the transmission which supplies the power to the load.

Abstract: A mechanism is provided for use in conjunction with a time accumulating means adapted to accumulate timer run time on a timer mechanism in response to an outward reciprocation of the slide of a coin-receiving mechanism from a fully inward position. The mechanism is associated with the slide and provides for positively stopping inward movement of a gear rack used to set the timer run time and includes resilient means to take up any deviation in mechanism assembly tolerance thereafter without further inward movement of the gear rack.

Abstract: Control device for bar transfer comprising a lever driven in rotation about a fixed axis, an arm mounted rotating on the lever around an axis parallel to the preceding axis, the arm being further connected to the bar transfer by a catch-pin of axis parallel to the aforesaid axes, the lever and the arm having the same length between the axes in question, and a mechanism being provided to drive the arm at a relative angular velocity double that of, and in the opposite direction to that of, the lever, wherein there is provided a drive mechanism for the lever comprising a drive element with cycloidal trajectory to modulate the speed of rotation of the lever and thus of displacement of the bar.

Abstract: A number of identical molded segments are brought together to form a stack. Each segment contains intersecting left and right-handed helical guideways, each guideway defining about one-half the pitch of a thread. Each adjacent identical segment is oriented with respect to each other adjacent segment to provide a substantially continuous left and right-handed helical guideway. Each adjacent identical half-pitch segment is oriented about 180.degree. out of phase with respect to each other adjacent identical segment. A minimum of two identical one-half pitch segments is required to provide a reversing lead screw.

Abstract: An interior and outer wiper of car can be used to scrape the rain water or fog either inside or outside a car. This wiper is designed to clear the driver's sight to prevent from occurring traffic accident. Either the interior or the outer wiper can be used. Both the interior and outer wiper can be used at the same time. They may be operated synchronously by means of a cam.

Abstract: A four-bar kinematic chain has an input member which includes a portion formed with a guide channel, an elongated output member that is pivoted intermediate its end portions, and a link member having one end pivoted to one end portion of the output member and another end portion provided with a sliding block received in the guide channel. A crank drive is connected with the input member for oscillating the same and the guide channel, to thereby effect oscillatory movement of the other end portion of the output member and concomitant movement of an element to which the other end portion is coupled. An arrangement is provided for arresting the sliding block at selected locations in the guide channel, to thereby permit a variation in the stroke and frequency of the movements of the other end portion of the output member.

Abstract: The derailleur is mounted inboard as respects the bicycle frame. It is aligned with the rear drive sprockets. The take-up cage carrying sprocket wheels over which the slack part of the chain passes is carried on an actuating rod or stem, which engages a positioning means which provides for positive transfer of the chain from one drive sprocket to another, and for positive alignment of the take-up means and drive chain with individual drive sprockets. The positioning means is in the form of overlying plates, having overlying slots configurated to positively guide the stem carrying the take-up cage to assure the positive transfer of the drive chain, and positive alignment with individual drive sprockets.

Abstract: A pulley in which one flange, slidably mounted on a driving shaft, is movable towards another flange, fixed to the shaft, in response to the centrifugal force created by rotation of the shaft, acting on a quantity of oil contained in an annular chamber which is defined by the movable flange and a back-plate fixed to the driving shaft and is permanently connected to either the ambient atmosphere or a source of oil through a breather passage.

Abstract: The present invention relates to a belt stabilizing apparatus for maintaining a belt stable about a pair of rotating drums in response to lateral forces applied thereto. One of the drums is mounted for pivotal movement about an axis perpendicular to the normal axis of rotation thereof and contained in a plane perpendicular to the planes containing the loaded and unloaded spans of the belt such that as the drum pivots in response to lateral forces the belt tends to move in a direction opposite thereto and resilient means is provided to limit the pivotal movement of the drum and prevent the belt from riding off the drums in such opposite direction.

Abstract: Apparatus for tensioning a safety belt, in which tension is applied to the belt through the action of a piston in a working cylinder, includes a mechanism for blocking the reverse action of the piston in the cylinder following the application of pressure. The reverse motion blocking mechanism includes at least one wedge, movable along a slide surface in response to the application of gas pressure, and toothings on the piston into which the wedge may be lodged to prevent reverse motion of the piston following the application of tension to the safety belt.

Abstract: A tensioning apparatus including a mount for pivotally supporting a belt-driven device having a housing with pivotal supports defining a pivotal axis with said mount. An adjustable tensioning means locks the device in its adjusted position.

Abstract: A belt drive including a pulley, a belt reeved about the pulley and means for slacking the belt to disengage it from the pulley is provided with a shroud about the pulley which has portions narrowly spaced from the edges of the pulley to capture the slacked belt between the pulley and the shroud, thus to guide the belt for proper engagement with the pulley during clutching, to prevent the slacked belt from coming off of the pulley and to coact with the declutched expanded belt to maintain it out of range of the pulley in the declutched mode. The shroud has a mounting bracket and fastening means for releasably attaching the bracket to the engine block. The fastening means comprises a positioning detent which engages a portion of the engine block and a single point fastener which releasably fastens the bracket to the engine block.

Abstract: An impact absorbing device for protecting a rotatable member of a motor powered machine tool feed mechanism from excessive impact and overload is disclosed. The device includes structure forming a flanged piston concentrically mounted with respect to the rotatable member and axially slidable within a housing in response to axial displacement of the rotatable member, (which is undesirable and thrust and radial bearing structure in which the rotatable member is journaled for rotative displacement. The housing and the flanged piston combine to define a pressure chamber whose volume varies as a function of the axial position of the piston. The pressure chamber is connected to a source of fluid under pressure, to cause the piston to yieldingly resist axial displacement of the rotatable member with respect to the housing.

Abstract: Spring loaded member for automatically biasing a split nut toward engagement with a threaded rod, and rotatable cam member for effecting disengagement.

Abstract: The present invention pertains to an actuator having a unique universal-type joint assembly incorporated therein. The actuator comprises a stationary member and a movable member mounted for movement with respect to the stationary member. The actuator further comprises a first drive means, such as a drive screw, and linkage means connects the first drive means to the stationary member and provides universal-type movement. The linkage means includes a substantially non-torque-absorbing thrust transmitting element. A second drive means, such as a drive nut, is threadedly connected to the drive screw for reciprocation therealong and is also connected to the movable member of the actuator.

Abstract: The power transfer of the present invention employs a driver having a medial section which includes a plurality of continuous, helical grooves and a plurality of axially aligned transfer material return flow paths. The medial section terminates at each end in a generally cylindrical head, each of which is provided with grooves which communicate with the medial section grooves. The head grooves conduct the power transfer material to the axial paths for axial flow through the driver. The power transfer material flows through the helical grooves, through the head openings, if so embodied or if used, through the head cooperating grooves and the axially aligned paths to travel a complete, circuitous route about and through the driver.

Abstract: A steering gear of the type comprising a pulley rotatable by means of a steering wheel, and a member to be steered by wire ropes extending from the pulley, is arranged to provide a restoring moment. The rotatable pulley is formed with two adjoining grooves having a width corresponding to the cross-sectional dimension of the respective wire ropes, and a depth permitting at least two turns of wire rope to be wound thereinto. The restoring moment is obtained in that when steering movements are effected the run of the wire rope being wound onto the pulley and extending tangentially thereof will be situated at an effective radial distance from the center of the pulley greater than that of the corresponding run of the wire rope being unwound from the pulley.

Abstract: A snap fit cable attachment for a bowden cable wherein a bowden cable flag and a cable mounting support member are interlocked together by means of a plug and socket arrangement with a snap tab on one of the elements and an abutment for the snap tab on the other element.

Abstract: Articulated handlebars for bicycles, motorcycles and the like, which have conventional support means thereon for handlebars, comprising elongated, substantially horizontal attaching means with a clamp or a pair thereof for removably fixing the attaching means to the support means; at least one supporting means, mostly vertical, at an angle to the attaching means; one or a pair of handle shaft means associated with the supporting means, for carrying at its or their outer end(s) one or a pair of handles; and respective securing means for attaching the supporting means to selected portions of the attaching means, and the handle shaft means to selected portions of the supporting means, respectively; whereby any spatial, height, length and angular attitude can be set for the handle(s), as required by the operator of the bicycle, motorcycle and the like. Various exemplary embodiments and structural solutions are disclosed.

Abstract: The invention generally relates to inertial energy storage devices formed of wound anisotropic material. In particular, the invention provides a disc-like flywheel formed of windings of anisotropic filaments wherein the filaments are provided with a relatively thin sheath of flexible material around each of the filaments, the flexible sheath providing positive contact between adjacent windings even during deformation of the windings caused by rotation of the structure.

Abstract: A hub element of the vibration damper is adapted for connection to a shaft and has a first circumferentially extending support surface. An inertia element surrounds the hub element and has a circumferentially extending second support surface. An elastomeric member is compressed between these surfaces and mounts the inertia element on the hub element with freedom of vibration. An arrangement is provided on one or the other of the elements for continuously varying the characteristic frequency of vibration of the damper, by subjecting the elastomeric member in axial or radial direction to continuously variable compression.

Abstract: A power transmission comprises one or more sequential modules each including a modular portion of an enclosure for the complete transmission, a planetary gear set, a direct drive clutch, a self-energizing reduction brake and a hydraulic control system preferably adapted to substantially simultaneously condition the direct drive clutch and reduction brake for establishing either a direct or reduction drive mode for each module.

Abstract: A motion transmitting device comprising four basic elements, namely, eccentric means, meshing means in the form of a series of individually movable meshing elements, wheel means formed with portions complementary to the meshing elements, and movement-limiting means. The eccentric means is disposed to cause the meshing elements to sequentially wobble (or generally move) in-and-out of meshing engagement with the complementary portions, while the meshing elements are individually guided within specifc limits of wobbling motion (or, generally, motion) by the movement-limiting means.In one embodiment, the wheel means is conveniently a toothed gear wheel, which meshes with a special form of transmission chain whose pins provide the meshing elements and which may conveniently extend to provide part of the movement-limiting means, the other part thereof comprising apertures in a datum member which define the limits of the movement of the pins.

Abstract: A speed reducing device which is capable of large speed reductions and torque multiplication in a single stage is disclosed. The device includes input and output shafts in axial alignment, together with a transformer gear component having primary and secondary gears which rotate together. The primary gear engages a fixed gear spline while the secondary gear engages a rotatable output gear spline. This combination of gears, together with an eccentric and counterweight mounted on the input shaft, provides a system having numerous advantages in the field of high-ratio mechanical power transmission.

Abstract: This invention describes a system of control for a power source-transmission-load system such as might be used on an off-the-road vehicle, for example. The power source is an internal combustion engine having a known optimum characteristic of desired manifold vacuum versus engine speed. The transmission is a hydrostatic or hydromechanical transmission having infinitely variable speed ratio and having a control means for varying said speed ratio.The control system includes a transducer means for measuring engine speed and converting this quantity into an analog fluid pressure proportional to the speed. This analog fluid pressure proportional to speed is modified in a function generator to produce an analog fluid pressure which is proportional to the desired manifold vacuum as a function of engine speed. Means are provided for measuring the actual manifold vacuum and for comparing the actual manifold vacuum with the desired manifold vacuum on a continuous basis.

Abstract: An electronic means senses the difference in rotational speed between a main shaft gear to be engaged and the main shaft, and actuates a friction disc assembly to connect the low gear to the main shaft to accelerate the countershaft and thus the gear to be engaged if the gear speed is lower than the main shaft speed, and to connect the first gear to the transmission casing to decelerate the countershaft and thus the gear if the gear speed is higher than the main shaft speed, shifting from neutral into the desired gear ratio is prevented until the gear and main shaft speeds are synchronized.

Abstract: A pressure control circuit for use in connection with an automatic transmission of a vehicle is disclosed which comprises a pressure regulating valve for regulating a hydraulic pressure discharged from a pressure source and for actuating frictional engaging means, said pressure regulating valve including an accumulator, a valve spool and a spring urging said valve spool in one direction, said accumulator including a hydraulic chamber, into which is supplied the hydraulic pressure which will mechanically impart an additional force to said spring at a given value of the hydraulic pressure.

Abstract: A flat sheet metal plate defining a reference plane on one side. Said plate having first and second sections and an intermediate section. The first and second sections being flat and in a common plane, and the intermediate section formed into a semi-circular loop with a center portion of the loop removed. The remaining portions of the semi-circular loop provide a pair of guide lugs to guide a round file. The first and second sections are adapted to rest on the depth gauge and cutter of a cutting link in a saw chain with the guide lugs straddling the chain and aligned with the gullet of a cutting link to guide the file in a desired orientation against the cutting edge of the cutting link.

Abstract: According to this invention, two band saw grinder units are constructed in paired relationship, spaced apart, and arranged to receive two band saw bands suspended from overhead supports which will permit the bands to move up and down for the grinding operation instead of horizontal as in the prior art. The grinder units are controlled and powered from a central mechanism located in the area between the units, while the bands are supported in an area outward from the area occupied by the central control mechanism, avoiding conflicting occupancy of the various parts. Novel construction and improved means for adjusting the linkage required for accurate grinding of one or two blades at a time are outstanding features of the invention.

Abstract: A fluid pressure control system for automatic power transmissions including a source of fluid providing a controlled line pressure, a manual valve movable to a number of positions including range P (parking), range R (reverse), range N (neutral), range "3", range "2" and range "1" in the order mentioned for setting the transmission in a desired operational range and provided with at least three spaced lands. A unitary, first pressure regulator valve is provided which has at least two spaced valve lands and a fluid passage interconnecting the unitary, first pressure regulator valve and the manual valve. The fluid passage communicates with a fluid chamber provided between the valve lands of the unitary first pressure regulator valve. In the range P, one of the valve lands of the manual valve is adapted to cut the line pressure. In the range R, the aforementioned fluid passage is blocked by another of the valve lands of the manual valve.

Abstract: A method and construction of a saw blade whereby the ends of a saw blade are secured to define an endless saw blade construction which has a series of cutting teeth progressively arranged from leading to trailing end so that the respective teeth are rendered self-feeding. Each cutting tooth is formed with a relatively wide root which is inclined to define a clearance angle of 10.degree. to 15.degree..

Abstract: A combination tool including a power slip, spinner unit and torque wrench, all mounted movably to a common support structure adjacent a well. The assembly is operable to first support the lower of two successive sections of pipe in the power slip, and then turn the upper section relative to the lower one to screw the pipes together or apart, with the major portion of the rotation being effected by the spinner, and the final high torque make-up rotation or initial joint breaking rotation being produced by the torque wrench.

Abstract: Pliers made from a plastic material which is preferably reinforced with glass fibers and made with two lever members hinged together to provide gripping jaws at one end and handles at the other end. The jaws are dimensioned to be slightly elastic and have their meeting faces angled so the faces diverge from the front back toward the hinge and increased pressure on the handle will clamp and deflect the jaws until the faces are in abutment and stops on the handle side of the hinge limit and prevent the jaw deflection movement beyond their full abutment disposition. A plastic resilient member acts on the handles to urge them apart. Auxiliary gripping devices can be attached to extend beyond the nose portions of the jaws.

Abstract: Apparatus for enlarging a portion of a bore of a rotor includes a rotor support and drive and a boring bar with controlled fly cutters, which operate in unison with an indicator that follows a template shaped to correspond to the desired shape of the enlargement.

Abstract: A feedstock cutting and feeding device for forming machines of bolt nuts and other products of similar shape wherein the moving distance required by a cutter to cut off the rod material is the distance between the original position thereof and the center of the cut-off die.

Abstract: A cutting saw chain having cutting tooth links distributed therealong. Each cutting tooth link having a portion at one end upstanding therefrom and twisted out of the plane of the link to form a cutting edge. The links on opposite sides of the chain have the upstanding portions twisted in opposite directions. Each cutting tooth link at the other end has a portion upstanding in the plane of the link and forming depth limiting means. A link in advance of each cutting tooth link also has an upstanding part forming a depth limiter for the following cutting tooth link.

Abstract: A tone source apparatus is provided for an electronic musical instrument. It comprises a memory circuit which has a plurality of addresses and is so arranged that where at least one cycle of a musical tone waveform is divided into p units and a waveform in each section range is represented by a formula containing the abscissa as its variable, a coefficient and a section range quantum number of each formula is memorized in the form of digital signals in the corresponding address. Also included are a clock pulse oscillator, a counter means for counting output clock pulses of the clock pulse oscillator, and a coincidence circuit serving to generate the coincidence signal when the output digital signal of the counter means and a digital signal of the section range quantum number memorized in the memory circuit coincide with one another. A decoder designates the next stage address in order by output signals of the coincidence circuit.

Abstract: In an electronic musical instrument, such as an electronic organ, the speech characteristics of reed organ pipes are simulated by applying pulses produced by key-actuated tone generators, which pulses are preferably narrow as compared to their repetition frequency, to a low-pass filter, the pass characteristic of which has a relatively sharp knee and a very rapid rate of rolloff, thereby to sharply attenuate the harmonics contained in the pulse which have frequencies above the cutoff frequency. The resultant tone passed by the filter is surprisingly reed-like in character, and by changing the cutoff frequency, reed-like voices of differing properties, imitative for example, of an organ Oboe tone, an orchestral Oboe tone, a Clarinet, a Kinura or a Trompette are obtained.

Abstract: Music encoding and decoding apparatus which divides a keyboard instrument into groupings of designated lengths such as octaves wherein each octave is scanned, either in sequence or on triggering of a key in that octave; the apparatus includes a master encoder which encodes a key closure, the encoding being in the form of a word of multiple bits having a specified word length. The apparatus further encodes the expression of the note. The expression constitutes a portion of the word. Decoding apparatus is likewise incorporated. It reverses the sequence and drives a solenoid for operation of a keyboard instrument.

Abstract: The stop control for an organ console comprises a panel including groups of touch sensitive switches disposed in pairs with an adjacent indicating lamp, wherein the switches of a pair respectively actuate and deactuate a given stop while the lamp indicates whether the stop is actuated. The switches of a pair are connected to set and reset terminals of a latching circuit which provides an output for energizing the indicating lamp and for controlling appropriate stop circuitry in the organ. The touch sensitive switches are disposed in groups according to the organ manual or function to which the corresponding stops pertain. A general cancel switch returns the various latching circuits to a reset condition. A transposer control circuit includes a plurality of switches and adjacent indicating lamps wherein the depression of a particular switch operates a latching circuit and resets other latching circuits associated with the transposer.

Abstract: A toy piano has a set of sound-producing elements disposed within a frame, and a set of key-shaped levers pivotably supported on the frame along a normally horizontal axis for movement from a first position to a second position, respectively. A set of hammers is pivotably disposed within the frame for striking the sound-producing elements; the hammer-contacting ends of the levers normally rest on the hammers, respectively, for preventing the release thereof. The sound-producing means are actuated either manually by depressing one of the levers and releasing it thereafter so that a corresponding hammer is then made to impinge on one of the sound-producing elements, or automatically when a cam-shaft is permitted to periodically strike at least one of the released hammers.

Abstract: A bridge for a stringed instrument, preferably a violin, is disclosed for the purpose of enhancing the volume and tone quality of the instrument. The bridge is made from wood and has an upper generally oval body portion which is supported by the lower inverted V-shaped leg section. The body portion includes four slits through its width, associated with the strings as described in detail in the specification. The leg portion includes two slits aligned to form another inverted V-shape conforming to the shape of the leg portion. The leg portion may also have holes drilled into it for the purpose of removing material to reduce the overall weight of the bridge. Several preferred contours are disclosed for the body portion, one of which may be selected for use with different stringed instruments.

Abstract: An intonation aid for instruments of the violin family is molded from a plastic material as a thin, curved member which fits over the fingerboard. The aid includes a plurality of spaced stops arranged at different acute angles transverse to the strings thereby defining finger positions for the distinct half notes in the scale up to the second octave.

Abstract: An elongated bar is provided and one end of the bar includes structure for removable support from an oscillatable hammer block of a pedal actuating assembly with the other end of the bar projecting outwardly from the block generally radially of its axis of oscillation. The other end of the bar includes an outer terminal end portion including a first threaded connection structure and a beater ball is provided and includes a second threaded connection structure. The first and second threaded connector structures coact to removably threadedly support the beater ball from the outer terminal end portion of the bar. The beater ball is supported from the bar spaced outwardly of one side thereof to be advanced toward a bass drum and the structure comprising the first and second threaded connector structure is of simple design for ease in manufacture at a low cost and also capable of establishing a firm but releasable connection between the beater ball and the bar.

Abstract: A musical instrument tuning device for tuning a musical instrument, having a vibrating sound producing member, is herein disclosed. The musical instrument tuning device includes a tone sensor, connected to the vibrating sound producing member. A comparator is connected to the tone sensor. A signal generator is also connected to the tone sensor. A tone adjustor is connected to the comparator, and to the vibrating sound producing member. The tone sensor senses the rate of vibration of the vibrating sound producing element, and produces a tone sensor signal indicative of the rate of vibration. The signal generator produces a selected frequency signal. The comparator receives the tone sensor signal and selected frequency signal, and produces an error signal indicative of the difference between the tone sensor signal and selected frequency signal. The tone adjustor receives the error signal, and adjusts the rate of vibration of the vibrating sound producing element in response thereto.

Abstract: A liquid propellant gun utilizes a differential piston having a plurality of bores through its head, which head divides the liquid propellant pumping chamber from the combustion chamber, and propellant supply means providing liquid propellant under pressure into said pumping chamber, which propellant under pressure both advances the piston to enlarge the pumping chamber and to decrease the combustion chamber and injects and atomizes a predetermined quantity of propellant through said bores from said pumping chamber into said combustion chamber, and a check valve which precludes flow of liquid propellant under pressure from said piston to said propellant supply means and damps said piston at the end of its combustion stroke by means of a damping cylinder.

Abstract: The present invention is directed to an improved key cutter, and more particularly to a key cutting devie adapted simultaneously to cut two key blanks in accordance with the bitting of a pattern key. The apparatus is characterized by the inclusion of a vise assembly for carrying the pattern key and the key blanks which simultaneously engages the surfaces of the key blanks on spaced portions of the periphery of a single milling or cutting wheel, the apparatus including, in addition, means for compensating for wear and dulling of the cutter wheel.