Abstract: A selectable rate sync generator system for use with a television test pattern generator includes a master oscillator of predetermined frequency, selector switches for selecting the desired total horizontal line time, and a horizontal line trigger circuit for generating a train of clock pulses having twice the repetition rate (2H) of the line time selected. H rate blanking and drive pulses are generated in response to the clock pulses. Selector switches are provided for selecting a desired number of horizontal scanning lines in two fields, and a vertical trigger circuit generates vertical trigger pulses having the repetition rate (V) of the number of lines selected. V rate blanking and drive pulses are generated in a response to the V trigger pulses, and the H and V rate blanking pulses are summed to provide a composite blanking signal. H rate sync pulses are generated in a response to the clock pulses and are delayed therefrom by a predetermined interval.

Abstract: An ankle support having a main body portion to extend about the Achilles' tendon of a foot and along the inner and outer sides of that foot with a tongue portion and overlapping first strap portion passing across the ankle to completely encircle the ankle of a wearer and having a stirrup portion depending from the main body portion to pass beneath the arch and sole of the foot leaving the heel and toes exposed is disclosed. The main body portion, first strap portion and tongue are formed as different regions within a single sheet of multi-layer fabric with the stirrup portion being formed from a separate piece of the same multi-layer fabric and joined by stitching to the main body portion in two regions along one edge thereof. A pair of side stiffening members are sandwiched between main body portion layers to reduce sidewise flexing of the ankle joint.

Abstract: A chain drive for use on a bicycle having a conventional frame and wheels. The chain drive comprises a wheel hub mounted for rotation on the frame. The opposite end portions of the hub are disposed on opposite sides of the frame, respectively. Two sprocket devices are mounted on the opposite end portions, respectively, of the hub for imparting rotation thereto. A pedal operated crank is also mounted for rotation on the frame, and includes two coaxial sprockets secured to the opposite ends of the crankshaft. The crank sprockets are axially spaced, parallel and disposed on the opposite sides, respectively, of the frame. The two sprocket devices and the two crank sprockets are radially aligned, respectively, one sprocket device being associated with one crank sprocket. Two chains are mounted on the aligned sprocket devices and crank sprockets, respectively, for driving the wheel hub by means of the crank.

Abstract: The present invention relates to a mechanical press, and in particular to such a press having a crown portion with an open top thereby permitting the crankshaft and connection arm assembly to be lowered therein in a preassembled state. Next, a cover plate is connected to the crown and the press motor assembly is mounted thereon. Belt connections to the drive assembly can be made through openings in the cover plate and access to the drive assembly can be had through removable doors on the ends of the crown. Preferably, the press frame comprising the bed, uprights and crown are formed as a single casting thereby avoiding the necessity for tie rods.

Abstract: A unit bearing motor includes a frame member having opposite sides and a bearing post thereon, the bearing post having first and second opposite ends with first and second spaced bearing portions respectively extending axially inwardly from the ends. The bearing post has a first portion extending from one side of the frame member to the first end and a second portion extending from the other side of the frame member to the second end. The shaft of the machine is rotatably supported in the bearing portions and has a portion extending from the first end of the bearing post for supporting the rotor of the machine. A cup member is secured to the other side of the frame member and encloses the second portion of the bearing post to define a lubricant reservoir. The frame member has openings formed therethrough outwardly from the bearing post and communicating with the reservoir.

Abstract: The invention relates to the concentration of particulate matter by froth flotation and in particular to improvements leading to the conservation of water. The apparatus includes an upstanding flotation compartment adapted to contain a relatively quiescent body of aqueous pulp. Aqueous pulp is introduced into and float fraction is collected from the upper portion of the flotation compartment, and hydraulic and aeration compartments are disposed near the bottom of the flotation compartment for aerating the water therein. A water-collecting compartment connected to the bottom of the hydraulic and aeration compartments is adapted to receive water from the latter. A tailings-discharge duct centrally of the flotation compartment extends through the hydraulic, aeration and water collection compartments to discharge fluidized tailings.

Abstract: This invention relates to an adjustable ankle stirrup device for a chiropractic table adapted to mount straps which may be affixed to the ankles for restraining patient movement toward the head of the table during treatment. The stirrup device includes two stirrup brackets mounted on opposite sides of the table which are adjustable longitudinally thereof and vertically supportable in selected positions to accommodate patients of different heights.

Abstract: Apparatus for winding coils in the slots of an externally-slotted dynamoelectric machine core member comprises a flyer and a support for the core. Shroud member portions are disposed within the path of rotation of the flyer. Two rotatable wheel elements are provided on opposite sides of the core and having peripheral surfaces adjacent the shroud portion surfaces. The outer surface of each shroud portion has an outwardly extending groove therein and the peripheral surface of the respective wheel element extends into the groove thereby inhibiting rotation of the shroud member. Each of the wheel elements has a cut-out portion which communicates with its peripheral surface and which has a radially extending trailing edge which faces the respective core side as the wheel element is rotated in a direction to move the edge from the inner to the outer end of the respective shroud surface. The wheel elements are rotated in opposite directions and the cut-out portions are phase-displaced by 180.degree.

Abstract: An injection molding machine which is capable of injecting both thermoplastic compounds and glass loaded thermosetting polyester compounds, wherein the machine is capable of rapid conversion from its thermoplastic configuration to its thermosetting configuration, and vice versa. The machine comprises an elongated charge forming barrel having a rearward thermoplastic feed opening, which is customarily supplied by pelletized thermoplastic material from a vertical feed hopper, and a thermosetting material feed opening extending into the barrel at a position forwardly of the thermoplastics feed opening. When processing thermoplastics materials, a conventional, fully flighted plasticizing screw is installed in the barrel so that the pelletized material is conveyed forwardly from the rear feed opening, and plasticized for subsequent injection. During thermoplastics processing, the thermosetting feed opening is plugged.

Abstract: A gun-type fluid fuel burner having a blast tube with a fuel dispensing nozzle therein includes a blower housing having a scroll side wall and opposite end walls. The housing side wall has an upwardly facing air discharge opening therein which communicates with the blast tube, and one of the end walls has an air inlet opening therein. A squirrel cage blower wheel having a diameter more than twice its width is mounted for rotation in the housing and is directly driven by a two pole single phase alternating current motor mounted on one of the housing end walls, the blower drawing air through the input opening and discharging the air under pressure through the discharge opening. A damper plate is mounted on the housing for movement between an open position and a position closing the discharge opening, the damper being moved to its open position in response to air pressure from the blower and returning to its closed position under the influence of biasing force.

Abstract: An electronic keyboard musical instrument comprising a multiplexed keyboard and a programmable microcomputer interfaced between the keyboard and a system of capture tone generators, and including means for causing phase locking between the tone generators. The loading circuitry for the microcomputer monitors the serial data stream and transmits only key change information to the microcomputer. The microcomputer controls the assignment and the assignment of tone generators for the accompaniment, solo and pedal manuals based on the key change information transmitted to it. In order to avoid cancellation between tones which are in octave or multiples thereof apart, the tone generators for each manual are phase locked with the other tone generators for that manual. Not only are the top octave synthesizers for each tone generator phase locked, but the divider strings are uniformly loaded so that they operate in identical states.

Abstract: A sealing device for providing a fluid-tight seal when jointing different types of pipes. The sealing device comprises a sealing ring made of a resilient material are positioned in an annular groove in the outer pipe, and has a sealing portion adapted sealingly to engage an inner pipe introduced therein. A retainer ring made of a rigid or semi-rigid material cooperates with a radially inwardly extending projection of the sealing ring for retaining the sealing ring in a correct position in the groove during the introduction of the end portion of the inner pipe to a position wherein the end portion of the pipe deforms the sealing portion. The projection is positioned immediately in front of the retainer ring in the direction of introduction of the inner pipe, and the sealing portion is positioned behind the retainer ring.

Abstract: A storage device for fishing reels comprising an enclosure having an access opening and a first wall on which is mounted at one end a plurality of spaced supporting posts. Each of the posts is provided with two spaced reel-retaining keepers, one of these being secured and the other being movable longitudinally of the post. The post is threaded adjacent the position of the movable keeper and a nut is threaded thereon for the purpose of retaining the movable keeper against movement away from the secured keeper. The opposite ends of an elongated mounting foot of a fishing reel are engageable with the keepers in such manner that the tightening of the nut serves in securing the reel to the respective post. A door is provided on the enclosure for closing the opening thereof whereby unobstructed access to the post is available.

Abstract: A bearing arrangement for a wide variety of apparatus, such as machine tool tables, tool slides and carriages, wherein the bearing on one side of a movable element is preloaded by means of a hydraulic device forming a part of or connected to the opposing bearing on the other side of the movable element. A movable element, such as a machine tool table, is received in a support base having a lower guide surface and an upper guide surface. A roller-type bearing is secured to the table and bears against the guide surface which faces it, and, in this case, the last-mentioned guide surface is machined extremely flat and true relative to the tool. A second roller-type bearing is secured to the opposite side of the table and is urged against a guide surface by a hydraulic piston and cylinder. The hydraulic pressure which is developed presses the first roller bearing tightly against the respective guide surface and preloads the bearing so that the table will move with extreme accuracy relative to that surface.

Abstract: The alarm mechanism is electrically operated and includes an electrical switch having an arm which projects beyond the alarm's housing. The arm is semi-rigid and flexible such that it may be engaged to actuate the switch yet will deflect to one side to permit passage of a door engaged therewith during opening. The housing is mounted on a wall immediately adjacent to the door with the arm extending along side the door. Upon opening the door, the arm is engaged thereby sounding the alarm. The housing is frictionally and rotationally mounted on the wall such that it may be swung to a position in which the arm is moved out of interfering or engageable relation with the door.

Abstract: A power gas burner includes a plenum having front and rear walls and a side wall. A blast tube is connected to the front wall communicating with the plenum. A blower has its discharge connected to the plenum. An air-gas mixing tube is disposed in the blast tube with its discharge adjacent the distal end thereof and its inlet extending into the plenum, the mixing tube defining a secondary air passage with the blast tube. The mixing tube has an air-admitting opening adjacent its inlet communicating with the plenum. A gas line extends into the inlet of the mixing tube. A spider supports the discharge of the mixing tube and has legs engaging the distal end of the blast tube. A flame spreader disc is spaced from the discharge of the mixing tube, the diameter of the disc being generally equal to the diameter of the mixing tube at its discharge.

Abstract: A key device for locking an element to a shaft for rotation therewith includes a key-engaging surface on the shaft which is provided with first and second opposite ends and angles radially inwardly toward the shaft axis. The first end of the key-engaging surface is located at the shaft periphery, and the shaft is provided with a radially extending shoulder at the second end of the key-engaging surface. An element to be secured to the shaft has a shaft-receiving opening which receives that portion of the shaft having the key-engaging surface. The element is provided with an outer side and a radially extending keyway which opens through the shaft-receiving opening in registry with the key-receiving surface. The keyway is provided with a rear cam surface which extends angularly from the outer side of said element at a point radially spaced outwardly from the shaft-receiving opening to the shoulder on the shaft.

Abstract: A digital method of testing a wire drawing distance to determine the percent wire elongation provided thereby in which a predetermined test length of wire is pulled through the die and then around a rotatable capstan thereby rotating the same. A train of electrical pulses is generated in response to rotational movement of the capstan, there being 10.sup.n pulses generated in response to the rotational movement of the capstan caused by pulling a length of drawn wire therearound equal in length to the test length prior to drawing through the die where "n" is a positive integer greater than zero and less than five. The pulses generated during the pulling of the test length of the wire through the die are counted, and a visual indication of the pulse count with the most significant digit eliminated is provided.

Abstract: A balanced, half-pitch capacitor induction motor having a stator core member with equally spaced teeth equal in number to twice the number of motor poles and with the inner ends of the teeth having equal angular extent, and a squirrel cage rotor member. The main field winding comprises serially connected coils equal in number to the number of motor poles respectively embracing alternate, consecutive ones of the teeth and being adapted to be connected across a single phase source of alternating current. An auxiliary field winding comprises serially connected coils embracing consecutive teeth intermediate the teeth having the main winding coils thereon, the auxiliary winding coils being serially connected with a phase-displacing capacitor across the serially connected main winding coils. The main and auxiliary windings have equal ampere turns and equal pitch thereby providing a balanced, half-pitch, two phase motor winding. The rotor member has its squirrel cage bars spiraled by one-tenth of a full turn, i.e.