Abstract: Impending bearing failure, seal failure and drilling an undergage well bore, among other things, are immediately detected by sensing the presence of aqueous drilling fluid in a lubricant or other type of sealed cavity of a drilling tool or the like during a downhole drilling operation in an environment of aqueous fluid. Electrical conduction elements are preferably employed to sense the presence of the aqueous fluid. The electrical conduction means may employ a soluble anhydrous conductive material which, when in contact with the aqueous drilling fluid, dissolves or becomes an electrical conductor to signal the presence of the aqueous fluid. The aqueous fluid may additionally serve as an electrolyte between two dissimilar metals, thereby forming a galvanic cell, or as a conductor between a pair of contact terminals. In a drilling operation, a signal is preferably transmitted from a downhole location to the surface of the earth by mud pulse telemetry.

Abstract: A clay content curve, for the borehole under investigation is developed through logging procedures such as a gamma ray log or a spectral gamma ray log. Additionally, compaction trend curves based upon historic logging data are obtained for the geologic area of interest. Information provided by the total porosity trend curve is corrected using a function of the shaliness indicator curve. This correction allows the deviation of an effective porosity log for the reservoir which can be recorded or can be used to edit porosity logs.

Abstract: Improved methods and apparatus are provided for correlatively matching, recording, and displaying, two or more sets of logging data measurements with respect to the borehold depth at which they were generated, and independent of their historical or real-time character. In a particular embodiment of the invention, measurements from each set of data derived or sampled at correlative depths are adjacently displayed in graphical form during a logging operation. The depth offset between the measurements is visually or automatically detected, and in response thereto, the subsequent correlation of other selected measurements and depths at which subsequent measurements are derived are thereby adjusted for further processing, display and recording.

Abstract: For use in an oil well drilling system, methods are disclosed to determine the depth of drill string washouts and the depth of leach zones that cause lost circulation. The methods are based primarily on the circulating pressure of the drilling fluid at the surface within the standpipe.

Abstract: A method and apparatus are provided for indicating the altitude of the tropopause or of an inversion layer wherein clear air turbulence (CAT) may occur, and the likely severity of any such CAT, which includes directing a passive microwave radiometer on the aircraft at different angles with respect to the horizon. The microwave radiation measured at a frequency of about 55 GHz represents the temperature of the air at an "average" range of about 3 kilometers, so that the sine of the angle of the radiometer times 3 kilometers equals the approximate altitude of the air whose temperature is measured. A plot of altitude (with respect to the aircraft) versus temperature of the air at that altitude, can indicate when an inversion layer is present and can indicate the altitude of the tropopause or of such an inversion layer. The plot can also indicate the severity of any CAT in an inversion layer.

Abstract: Apparatus for milk flow measurement comprising debubbling apparatus for receiving milk which may contain bubbles and for removing bubbles therefrom, measuring apparatus receiving milk from the debubbling apparatus and having an outlet the rate of outflow therethrough being a predetermined function of the amount of milk contained therein, and apparatus for sensing the amount of milk contained in the measuring apparatus, thereby to determine the rate of flow.

Abstract: A dual range accelerometer includes a mass 10 supported on a cantilevered beam 12, there being stops 70, 71 such that for low accelerations the beam acts as a cantilever and for high accelerations, one of the stops causes the beam to flex as a beam supported at both ends. Surface acoustic wave devices 17, 46 provide a signal having a frequency which is a function of strain in the beam 12, thereby to detect accelerations in two different ranges.

Abstract: A diesel engine mechanical governor is disclosed having various novel features including a fuel modulating and maximum and minimum speed controlling cam plate and follower mechanism which connects the governor speed responsive actuating mechanism with the fuel rack actuating means to modify the effect of the manual fuel control means in a predetermined manner. The disclosure also includes novel rocking flyweight mechanism arranged to provide an output force as a function of rotational input shaft speed in which the exponential increase in centrifugal force upon outward rocking of the flyweights is partially offset to provide a more gradual increase in force with a corresponding increase of speed.

Abstract: Apparatus for ultrasonically testing polymer materials includes means for measuring the thickness of the specimen and for measuring the mass density of the specimen in situ. Ultrasonic measurements of the specimen are obtained. Then the specimen holder is rotated past the critical angle and new ultrasonic measurements are obtained. From these ultrasonic measurements the storage and loss moduli and attenuation coefficients for the polymer specimen are obtained.

Abstract: A cylindrical stress sensor has a case that is long relative to its diameter. The case may be completely imbedded in the body of a host material in which a change of stress is of interest. That portion of the sensor which is imbedded has a rounded end. The rounded end, circular cross section, and relatively large length-to-diameter ratio avoid errors occasioned by stress concentration. A strain transducer of a vibrating wire excited by a magnetic coil is located remote from any imbedded end of the sensor. Changes in strain on the wire alter the frequency of the wire. This change in frequency is picked up by the excitation coil as a signal. A stacked, three-transducer array, with the wire of each transducer at 45.degree. from a neighboring transducer, can detect changes in the magnitudes and directions of the principal stresses, without first establishing the direction of the primary or secondary principal stress.

Abstract: A method of proof testing an optical glass fibre by pulling it around a free roller whose radius is sufficiently small to impart the strain necessary to detect fibres whose surface or near surface flaws weaken the fibre below a required strength. Proof testers are disclosed incorporating, single rollers, a set of three parallel rollers and a jig holding four sets of three rollers. Proof testers incorporating the extra rollers whose axes are at different angles are shown to more thoroughly explore the surface of the fibre for cracks.

Abstract: An improved apparatus is disclosed for measuring the adhesive bond strength etween two materials. A short, cylindrical specimen (28) having a test surface of one material is attached to a rigid base (12) on which a slide (16) is mounted on preloaded rollers (22) for movement along a pair of tracks (14) provided on the base. Above the specimen, a rigid mold block (36) is supported on an axially extending arm (24) formed integrally with the slide (16). The peripheries (32, 38) of the specimen and the mold block are essentially aligned so that seal ring (50) may be moved into engagement with a narrow gap formed between the specimen and the mold block. The second material, whose adhesive bond to the first material is to be determined, is introduced into the volume defined between the mold block and the specimen and caused or allowed to solidify there.

Abstract: A transducer for measuring extremely small rates of flow of a liquid under high pressure. A transparent tube has a small channel within which is contained a ball having a diameter substantially that of the channel. The tube is housed in a pressure vessel in such a manner that the high pressure liquid to be measured surrounds the tube over most of its length. The liquid flows externally of the tube toward the inlet end of the channel, thereby equalizing the pressure differential within and without the tube. As the fluid passes through the channel from the inlet to the outlet, it propels the ball past a sensor, such as a photoelectric device. The velocity of the ball past the sensor indicates the volumetric flow rate of the fluid. The device is periodically reset by momentarily reversing the direction of flow through the tube to return the ball to its starting position.

Abstract: An electromagnetic flow probe for measuring fluid flow, and featuring interchangeable magnet and electrode lumen structures. A complex electrode lead pattern is incorporated in a lumen unit through which the fluid flow is conducted. The magnet structure is equipped with a magnetic field adjustment capability, and adjustable alignment lugs for receiving the lumen unit.

Abstract: A magnetic flowmeter includes first and second tube sections each having ls of non-magnetic material. The first tube is suitably connected to a process for passing a flow of an electrically conductive fluid to be measured. The second tube is established as a reference containing a still medium and is maintained at the same temperature as the first tube. A rotatable magnet assembly is disposed between the two tubes with at least two magnets attached to radially extending arms from a central shaft. Each magnet includes an air gap suitably sized to pass astraddle the diameter along a portion of the length of each of the two tubes. The magnets are provided in matched pairs spaced 180.degree. apart such that signals will be simultaneously generated in signal leads attached to each of the two tubes. By comparing the signals from the two tubes and varying the rotating speed of the magnet assembly until the signals are equal, or attain a maximum, the flow velocity of the fluid within the first tube can be determined.

Abstract: A rate meter senses successive drops of fluid flowing through a conduit and produces gating periods with time durations corresponding to the period of time between such successive drops. The rate meter then determines the number of incremental time periods in each gating period. The rate meter generates the reciprocal of this determination to obtain an indication of the rate of fluid flow. The rate meter may be self-contained. It includes a housing having a vertically disposed channel constructed to retain the conduit and a horizontally disposed channel communicating with the vertically disposed channel. The horizontally disposed channel is constructed to receive a cross bar made from a resilient material and fixedly disposed on the conduit. The cross bar supports the rate meter in a freestanding relationship. The cross bar may be provided with slots near its ends to enhance its resiliency.

Abstract: A flow meter is provided having a housing with inlet and outlet ports respectively adapted to be connected with a source of fluid pressure and a fluid user. A semicircular vane member mounted within the housing is movable in response to a change in the flow rate between the inlet and outlet ports to rotate a shaft to which the vane member is attached. The shaft, in turn, extends externally of the housing and is operatively coupled to an indicator for providing an external visual indication of the rate of fluid flow through the flow meter. The improvement, however, comprises a unitary spring seal having a first portion rigidly secured to the housing and a second portion which extends between the housing and the vane shaft. This second portion extends along the shaft within the housing and is resiliently urged against the outer peripheral surface of the shaft in order to prevent fluid leakage between the vane shaft and the housing.

Abstract: A float device is provided for density gradient fractionation which permits continuous removal of liquid samples from the surface of the liquid within a tube. The float device floats on the liquid surface and is provided with a centrally disposed length of tubing which extends through the device to provide communication between the liquid surface and a suction source such as a peristaltic pump. A concavity in the bottom of the float assists in removing trapped air and minimizes turbulent flow, thereby assuring high resolution of obtained samples.

Abstract: A device for taking fluid samples from one or more locations in a pipeline or vessel comprises a hollow body (31) for projection into the pipeline or vessel, a rotatable internal sleeve (50) having fluid inlet ports (53) which are in register with respective inlet ports (35) in the body (31) at least once per revolution, for fluid to enter a cylinder (70) which is within the sleeve (50), and fixed relative to the body (31). A piston (120) is moved in the cylinder in accordance with the profile of a cam groove (60) formed in the internal wall of the sleeve (50), and executes a fluid sample discharge stroke when the rotation of the sleeve (50) brings into register a fluid discharge port (74) of the cylinder, a fluid discharge port (57) of the sleeve and a fluid discharge port (38) of the body (31). The device provides reliable sampling for most fluids and over a very wide range of conditions.

Abstract: A sample introducing device, placed in the midway of an analyzing apparatus having a sample flowing route and a carrier fluid flowing route, in which device a valve disc rotatably disposed under urging force between a pair of supporting members, provided with a sample flowing passage and a carrier fluid flowing passage, in a sandwiched manner, is manually rotated with a handle so as to switch a sample flowing hole made in the valve disc for containing a predetermined amount of a sample to a position alignable with the carrier fluid flowing passage. By this simple operation of rotating the valve disc the desired amount of the sample can be transferred to the carrier fluid flowing passage, through the switching over of the sample flowing hole, for being flowed to an apparatus for analysis.

Abstract: An insertion regulator for insertion into and retraction from a pressurized pipeline and the like includes a sensor probe housing structure that is adapted for sealed connection at an aperture formed in the pipeline. The probe housing defines a probe receptacle opening into the pipeline. A sensor probe extends through the probe housing with an inner portion thereof in communication with the pressurized fluid medium within the pipeline. The inner extremity of the sensor probe is inserted into the pipeline against the influence of pressure contained therein by means of an actuator system employing a piston actuator that is movable responsive to pressure communicated thereto from the pipeline. The inner extremity of the probe is positionable at a preselected position within the pipeline for optimum sample taking and is retractable to a protected, noninterfering position within the probe receptacle to permit the passage of pigs and other objects through the pipeline.

Abstract: A liquid sampler, and particularly, a liquid sampler for sampling liquid taining frazil ice, employs a sampling tube open at both top and bottom which can be thrust into the liquid to be sampled and a membrane-type cylindrical valve which is closed by pulling a single string which is looped about the cylindrical membrane. A cutting shoe at the lower end of the sampling tube permits cutting through ice for obtaining the sample.

Abstract: A collector device for collecting, metering and holding a small sample of liquid, e.g. a drop of blood taken from a finger prick, comprises a vessel provided with an opening closed by a plug, and a screwthreaded cap having a protruding spigot which, when the cap is screwed fully onto the vessel, enters the opening and pushes the sliding plug down into the interior of the vessel. The plug is formed at its outer end with an outwardly facing recess, e.g. part-spherical, and the spigot is formed at its end which enters the opening with a tapering conical formation adapted to enter the recess. In use, with the cap removed the recess is filled with a quantity of liquid, the cap is then partly replaced to cause the spigot to abut the end of the plug so that its conical formation enters the recess and displaces excess liquid therefrom, trapping a metered sample of liquid of predetermined volume, less than the volume of the recess, in the space defined between the abutted ends of the plug and spigot.

Abstract: The present invention relates to a process for setting up a vertical gyroscopic device mounted on a moving craft, wherein the action of roll reset means is eliminated only with a delay time with respect to the rotation of the mass, this delay time being such that upon its expiration the kinetic moment of the mass in rotation is sufficient to ensure the stability thereof and the erector system is controlled in the sense of activation only with another time delay necessary to reduce the movement of precession of the device. The invention is applicable to the guiding or control of missiles or aircraft.

Abstract: A starting device for an engine wherein a drive shaft associated with a starting motor is connected through a one-way clutch to a pinion gear for driving a ring gear of the engine. The device comprises a first sleeve slidably fitted on the drive shaft, a second sleeve slidably fitted on the first sleeve, a drive clutch member for the one-way clutch slidably fitted on the second sleeve, and a buffer spring between the first sleeve and the one-way clutch. The first helical spline between the drive shaft and the first sleeve imparts a great forward thrust to the pinion gear by utilization of the turning force of the drive shaft into complete engagement with the ring gear so as to positively drive the latter. An excessive load may be absorbed by compressive deformation of the buffer spring.

Abstract: The electromagnetic disk-free clutch includes a cylindrical rotor supported on one rotary part and defining at one end face a frictional disk and at the other end face an annular groove which accommodates a tubular stator with an electromagnetic coil. The frictional ring of the rotor faces a corresponding frictional ring of a spring-biased armature which is supported for joint rotation and for an axial displacement on the other rotary part. The stator part adjoining the open end of the annular gap is radially extended to form a covering flange having a cross section substantially equal to the cross section of the axially directed parts of the stator and the rotor. The face of the rotor forming the frictional ring is provided with uniformly distributed openings and the axial dimension of the annular groove in the rotor exceeds that of the stator.

Abstract: A drive control is disclosed which is particularly useful for machines having a hydrostatic transmission or ground drive pump, such as a tractor. A shift assembly controls the input to the hydrostatic transmission, and it includes a shift lever which is movable by a bellcrank mechanism in opposite directions from a neutral position into forward or reverse. The drive control further includes a rocking foot pedal which is connected by an actuating linkage to both the shift lever and the hydrostatic transmission. The desired direction of operation is set with the shift assembly, and the speed of movement in the selected direction is proportional to the amount the foot pedal is depressed. The foot pedal assembly includes a heel tab actuator which can be used as a manual override for the purpose of braking by bringing the hydrostatic transmission back to neutral while maintaining the transmission in the selected directional position.

Abstract: A speed control apparatus for a vehicle comprising a speed control lever pivotally mounted in every direction to a frame of the vehicle, a console mounted on the frame, the console having formed therein a U-shaped guide groove in which the speed control lever is adapted to move, a pair of levers each pivotally mounted at an intermediate portion thereof to the frame and adapted to be selectively engageable at one end thereof to the speed control lever, a pair of rods each pivotally connected at one end thereof to the respective levers, a turning member rotatably mounted to the frame, the turning member having a pair of arms projecting therefrom in opposite directions from each other relative to the axis thereof, each arm being pivotally connected to the other ends of the respective rods, and a control valve for forward and reverse change-over and speed control of the vehicle connected to one of the arms and adapted to be changed over between forward and reverse positions in accordance with the turning directio

Abstract: A mounting assembly for a motorcycle handlebar having a straight central portion attached to a head of the frontwheel fork and two bent lateral portions. The mounting assembly includes a clamping device in which the central portion is clamped between a semi-circular bearing surface provided in a lower clamping plate and an upper clamping plate by means of a pair of clamping screws extending through the upper plate into the lower plate. In order to maintain functioning of the motorcycle handlebar even in the event of loosening of the clamping screws, the central section is formed with an extension abutting the lower surface of the upper clamping plate whereas the bores provided in the upper clamping plate to receive the clamping screws are widening in the downward direction and each screw of the pair extends into the lower clamping plate at a difference distance whereby the upper clamping plate is inclined due the desired inclined position of the handlebar.

Abstract: Apparatus for pumping oil from a well includes a hydraulic pump for reciprocating a sucker rod string. A counterweight is connected to the sucker rod string by a chain strung over sprockets within a compact framework. The hydraulic pump applies a shock absorbing back pressure to the sucker rod.

Abstract: A power transmission which includes two harmonic differential drive units which are operable to oppositely vary the rotational speed of the two outputs in direct proportion to each other. The transmission is particularly suitable for use in controlling the two drive chains of a tenter so as to correct skew distortions in the fabric, and wherein the output of the tenter chains is oppositely varied without altering the mean speed of the two chains.

Abstract: A transaxle for use in a vehicle having an engine mounted transversely with respect to the center plane of the vehicle comprising a compound planetary gear assembly mounted on the axis of the crankshaft for the engine, clutch and brake structure arranged in a strategic fashion to provide a minimum axial dimension for the transaxle, a final drive gear and differential mechanism mounted for rotation about an axis laterally spaced from and parallel to the engine axis, and a chain drive mechanism disposed intermediate the planetary gear assembly and the engine for effecting a driving connection between the driveshaft and the output gear element of the gear assembly whereby the outside dimensions of the transaxle permit packaging of the transaxle in an engine compartment with the engine axis disposed transversely and the driveshafts for the vehicle traction wheels may be positioned to effect a minimum angular displacement with respect to the axis of the differential.

Abstract: A variable speed transmission including a transfer section for establishing operating direction, a variable speed planetary transmission section arranged in operating alignment with the transfer section, and a range section for effectively multiplying the number of speed ratios established by the variable speed planetary transmission section. The transfer section includes a pair of planetary gear train, sun gears of which are coupled with a power input shaft and the variable speed planetary transmission section comprises four sets of planetary gear trains, all sun gears of which are coupled with a center shaft which is arranged in alignment with the power input shaft.

Abstract: A planetary speed change gearing for a power transmission system including a flywheel secured to a power transmission shaft of an engine, a flywheel housing enclosing the flywheel and an output shaft provided on the flywheel side and directly connected to a machine to be driven. The planetary speed gearing is built in a recess formed in the flywheel.

Abstract: The fuel-air mixture of an engine in a motor vehicle is controlled on the basis of a signal related to the fluctuations in the cyclic variations of the average combustion chamber pressure. This signal is derived indirectly from a sensor which monitors the rotational speed of engine members, e.g. the crankshaft. In order to provide closed-loop control, there is provided a reference value which is adapted continuously to changing engine speed. In addition, a correction of the reference signal is made to account for varying degrees of damping induced by changing inertial masses coupled to the engine, in particular the elements of the transmission connected between the engine and the vehicle. The correction for damping is made on the basis of signals related to the prevailing gear ratio either by direct indication of the gearshift lever position or by measuring the rotational speeds of the input and output shafts of the transmission.

Abstract: The control device for automatic transmissions with an overdrive mechanism engages the brake of the overdrive mechanism while the shift control valve of the hydraulic control device is in the N-position (neutral), so that when the shift lever is shifted from the N-position to the D-position or R-position, the overdrive mechanism is momentarily set for overdrive thereby reducing shocks upon manually shifting.

Abstract: A shift control device for an automatic transmission comprises a pressure hold valve equipped with a pressure oil and an oil chamber wherein said pressure oil is connected to an oil passage being between a shift valve and an oil servo and equipped line pressure is supplied to said oil chamber, and a flow control valve which restricts exhausting of the pressure oil of said pressure hold valve; wherein oil is exhausted through a fore-stage shift valve after the oil pressure of the oil pressure servo to be released is held in the appointed times at the shift where fore-stage engaging elements are disengaged and other engaging elements are allowed to operate without passing through the one-way clutch of an automatic transmission.

Abstract: A method is provided which produces a head of piolet, all in one piece, by punching out a metallic blank (i.e. a long cross-shaped blank whose outline is symmetrical with regard to its longitudinal axis and comprises four parts: a peen part, a pike part, and two lateral fastening flaps) from a plate of metal, and then by the folding of that metallic blank symmetrically with regard to its medial plane, along its longitudinal axis or on both sides thereof, at least along that portion of length which corresponds to the pike. The blank is eventually shaped approximately along an arc of circle which is located along the medial plane of the blank before mounting upon the handle of the piolet.

Abstract: A tong assembly for use in making-up and breaking-out joints of varying diameter. The tong assembly includes a housing, a carrier element, at least one jaw, a link corresponding to each jaw and pivotably connected to the carrier element and to which the corresponding jaw is pivotably connected, a drag device, and a brake. A power device may be connected to the tong assembly to drive the tong and a backup tong may be secured relative to the housing and to the power device of the tong assembly.

Abstract: Ratchet wrench, having a motor drive and having a member which oscillates angularly, cooperating with a rotor, which intermittently drives a shaft angularly through a pre-determined number of degrees, the shaft being configurated to carry a socket to fit a nut to be turned. The wrench has a head which carries the oscillating member and a ratchet pawl. A manual adjustment is provided to adjust the pawl for driving the shaft in either direction as desired. The ratchet pawl is carried in the rotor member which is mounted in the head and which carries the shaft on which is mounted the socket for fitting on the nut to be turned. All of the parts are held within the head with appropriate friction being applied to the rotor by use of a wave washer.

Abstract: A device for turning a section of well pipe to connect it to or disconnect it from a pipe string includes a power unit to be mounted at a side of a well and having a part, preferably a piston, which is power actuable in opposite directions, with that part acting upon movement in one direction to exert a pulling force on a flexible line connected to a tong for turning the pipe section, and with the specified part acting upon movement in the opposite direction to exert pulling force on a second elongated flexible element, preferably a chain, which extends about the pipe section and acts to spin it rotatably when the chain is pulled.

Abstract: An adjustable socket wrench having a split socket formed of a pair of complementary jaw members which can be readily adjusted relative to one another for rendering a single wrench adjustable to a relatively large number of differently sized nuts and/or bolts coming within a given range of sizes and which socket includes a reinforcing member to resist the turning or twisting moment imparted to the split socket when the socket is subjected to a torque or turning stress.

Abstract: The invention is concerned with a spark plug wrench with provision for adjustment of the torque, the wrench comprising two toothed discs (2, 3) supported within and at one end of a cylindrical housing (1), these discs being provided at their confronting faces with teeth (5) of a form such that, when screwing-out takes place sharply dependent flanks of opposed teeth are applied together to transmit the full force while, when screwing-in takes place, slippage is allowed between the teeth. In one embodiment the inner lying toothed disc (3) is arranged on an axially displaceable attachment spindle (6) and held against rotation. At the opposite end of the housing (1) is a threaded disc (10) with an adjusting ring (11), and the last-mentioned toothed disc (3) is axially displaceable and has a pack of spring washers (16) thereon to produce the required pressure between the discs (2, 3) for transmitting a pre-set torque.

Abstract: A set of blades is held in the blade-supporting section of a base frame connected to a mounting section, which attaches it to a table surface with the blades overhanging the surface. A pusher head having a number of fingers is pivotally connected to the mid-portion of a handle which is rotatably mounted on the frame. A tilting linkage is rotatably connected to the pusher and to the frame for disposing the pusher more directly through the blades at the end of its stroke than if the pusher were rigidly attached to the handle. The chopped pieces pass directly to the container in a free space below the blade section of the frame. Pairs of struts and tilting linkages balance and stabilize the operating action.

Abstract: A slitter and readily removable head includes a drive housing and an idle housing projecting from a base with the arbors for the slitting knives extending between the housings. The lower arbor is journaled in vertically movable blocks with a jack system in the base thus moving the lower arbor. The idle housing and arbors are movable on the base as a unit away from the drive housing so that the idle housing and arbors may readily be removed and replaced. The lower arbor journal block of the idle housing includes a T-slot socket engageable with one or more jacks at a certain horizontal position so that arbors of different length may be employed. The idle housing and arbors forming the removable head contain no gearing, jacks, jack drive connections or fluid or electrical lines requiring connection or disconnection. A turntable may be employed to move the disconnected head to a storage or retooling location.

Abstract: For use with any type of saw and base such as a miter saw which can be set as to angle, the present apparatus comprises a pair of profile members corresponding to different sizes and shapes of conventional mold and such profile members may be supported at a proper angle on the flat bed of a table, such as a miter saw table, so that the piece of mold being cut is placed in a proper face-to-face profile engagement position with the profile member and thereby held in the proper angle and the proper position to be cut exactly in the manner as the mold will occupy when installed on a ceiling or other place. The method is the procedure for positioning the profile member in place, holding same in position, placing the mold to be cut in face-to-face relationship coextensively against the profile member, and cutting same. According to this, two pieces of mold will be cut on each end of each piece so that the matching cuts will fit exactly when installed in place.

Abstract: A tambourine is disclosed having a mechanism mounted therein to operate individual actuators arranged to move the cymbals or "jingles" of the tambourine causing them to contact one another and produce sound. The mechanism may include a member integral with the tambourine frame for spinning the tambourine on its latitudinal axis.

Abstract: A foot-operated drum pedal is composed of a rocker constituted in a sprocket, and a chain connecting between the sprocket and the toe end of a pedal element. In the foot-operated pedal, a block and an inverse U-shaped bracket are attached respectively to both ends of the chain using pins, the block is screwed to the toe end of the pedal element and the bracket is screwed to and grips the sprocket, and a machine screw which is inserted between rollers of the chain disposed along the block is screwed to the block.

Abstract: A key cover plate for a piano or the like is injection-molded thermoplastic material marbleized by incomplete mixing of a color agent. The cover plate simulates the grain of natural ivory and has a Munsell hue of between 4.5Y to 8.8Y to 6.6YR. The cover plate also has a Munsell chroma of between 1.0 to 2.6 and a Munsell value of between 8.3 to 9.3. A contrast ratio of the plastic ivory material is between 70 to 90.

Abstract: A decorative light flashing apparatus employs a mass-damped dynamic microphone which preferentially responds to impulse-type sounds to trigger a timing circuit. The timing circuit produces pulses in response to the impulse-type sounds which drive a commutating circuit for sequentially illuminating a plurality of light sources in time to the impulse-type sounds.