Abstract: A tool for aligning sheaves or the like rotatable about spaced-apart parallel axes of rotation. The tool comprises an elongate member for extending between two sheaves generally perpendicular to the axes of rotation. There is a first contacting means generally near a first end of the elongate member for contacting a first sheave. There is a second contacting means generally near a second end of the elongate member for contacting a second sheave. The second contacting means comprises at least two gauge members extending from one side of the elongate member. Each gauge member comprises indicating means for indicating a distance between the elongate member and the second sheave.

Abstract: The material to be dried, such as coal, is mixed with an aromatic liquid, such as benzene, which removes a portion of the available water from the coal. The mixture of water and benzene, called an azeotrope, has a minimum boiling point relative to the surrounding liquid medium and is easily removed from the total mixture as a vapor. The condensed vapor forms two phases which are separated, furnishing a water stream for use elsewhere in the overall coal processing system and a benzene steam for recycle use. The dried coal/benzene slurry is further processed.

Abstract: Web-drying apparatus having a plane of lower blow boxes underlying the path of travel of the web to blow dry air against the undersurface of the web to support the same in closely-spaced relation to the blow box. Upper blow boxes are disposed on the upper side of the web closely adjacent the plane of travel of the web. The upper blow boxes are disposed in pairs extending diagonally across the full width of the web and terminating at opposite ends in fan chambers which are located in spaced locations along the sides of the path of travel of the web. The blow boxes in each pair diverge from the fan chamber, one extending forwardly and one extending rearwardly in the direction of the web travel to provide an angular space therebetween which provides free access to the web path and also to enable exhaust spent drying medium therethrough. The opposite ends of the blow boxes are closed in alternation.

Abstract: Apparatus for preheating solid particulate material which material is to be subjected to thermal processing in a furnace. The preheater includes a vessel having an inlet for solid particulate material to be heated, an outlet for preheated material, an inlet for hot exhaust gas from the furnace and an outlet for spent preheating gas. The various inlets and outlets are positioned with respect to each other to achieve countercurrent contact between gas and solids. A gas-solids contact zone is defined within the vessel. A plurality of superimposed conduits connect the solid material inlet with the gas-solids contact zone. A valve is positioned in each of these conduits to control the flow of material to the gas-solids contact zone and thereby control the depth of material within that zone. The greater the depth of material within the gas solids contact zone, the greater amount of preheating that will be accomplished due to a greater length of time that the solid particulate material is exposed to the hot gas.

Abstract: A seed corn dryer apparatus comprising an exterior shell secured to a foundation. The exterior shell includes a pair of side walls, a front wall, a rear wall, and a roof. A pair of interior walls are secured to the foundation within the exterior shell in a generally parallel and spaced-apart fashion from the side walls. A plenum, divided into upper and lower plenums, is contained between the interior walls. A storage area is contained between the interior walls and side walls. Air can circulate between the upper and lower plenums only through the storage area.

Abstract: An apparaus to improve the mobility of a visually impaired person comprises first and second exciter systems placed on either side of the person and acting to produce light beams which are received by corresponding first and second receivers, and first and second sound devices each with the corresponding associated receiver to produce a distinctive sound when the light beam is interrupted before getting to the receiver. In a preferred embodiment, the apparatus includes a cane held by the person so that as the cane is moved into the path of the light beam, the light beam is interrupted. The sounds, or lack thereof, which accompany the movement of the person and/or the cane provide an indication to the person whether the cane is being used properly and/or whether the person is walking in a straight line, e.g., between the light beams.

Abstract: A system of children's blocks for teaching arithmetic, comprising various types of arithmetic operation blocks, and a number of answer blocks. Each block is dimensioned in accordance with a predetermined numerical value. Addition blocks contain a linearly slidable rod having a portion protruding from the block a distance corresponding to a numerical value printed on the block. When two or more addition blocks are aligned, the rods of said blocks push against each other, to cause the rod of one of the end blocks to protrude a distance corresponding to the sum of the values of the mutually engaged blocks. An answer block contains an internal flag member and a visible indicator positioned so that an indication of correct result is displayed only when the protruding portion of the rod of an engaged addition block corresponds to a value associated with the answer block utilized.

Abstract: A system of children's blocks for teaching arithmetic, comprising various types of arithmetic operation blocks, and a number of answer blocks. Each block has a rod dimensioned in accordance with a predetermined numerical value. Addition blocks contain a linearly slidable rod having a portion protruding from the block a distance corresponding to a numerical value printed on the block. When two or more addition blocks are aligned, the rods of said blocks push against each other, to cause the rod of one of the end blocks to protrude a distance corresponding to the sum of the values of the mutually engaged blocks. An answer block contains a "Yes" light and/or an audible bell chime coupled to electrical sensing switches which are positioned so that an indication of correct result is displayed only when the protruding portion of the rod of an engaged addition block corresponds to a value associated with the answer block utilized.

Abstract: An audio-vocal integrator apparatus to develop the listening and language functions of a subject. The ear of the subject is alerted to an acoustical signal by osseous conduction and the signal is only transmitted to the ear after the ear has been previously alerted by osseous conduction.

Abstract: A track shoe is described having a shoe upper and sole made on a straight last, whose last axis bisects the heel and passes through the second metatarsal head of the wearer's foot. The spike plate portion of the sole has a rear pair of spike fasteners which place the two rearmost spikes behind the heads of the overlying first and fifth metatarsal bones. The spike fasteners of such rear pair are centered along a straight line which intersects the last axis at an obtuse angle in the range of about 102.degree. to 115.degree. which is substantially the same as the angle of intersection between such axis and a line between the first and fifth metatarsal heads. A third spike fastener is located behind the head of the third metatarsal bone ahead of the line adjoining the rear pair of spike fasteners. The track shoe is provided with a shoe upper of open mesh nylon fabric.

Abstract: An improved method for dredging by means of a pair of spuds provided on the respective sides of the stern of a dredger and adapted to be alternately driven into the bottom of the water, a ladder projected from the bow portion of the dredger and a suction port member that is mounted at the extreme end portion of the ladder.

Abstract: Framing means for pictures and like objects includes a frame having a substantially L-shaped cross-section to define a front flange for supporting a picture holding set assembled of a transparent plate, a picture or the like object, resilient insert and a relatively rigid back board; the rear face of the frame is formed with juxtaposed pairs of inwardly directed, V-shaped projections which are spaced at such a distance from each other and from said front flange as to receive and hold in a fixed position said picture holding set while said resilient insert is in compressed state.

Abstract: A positioning device is provided which is adapted to be secured to the back edge of a picture frame or the like. The device comprises a pivotally mounted indicator arm adapted to freely hang in the vertical plane when the picture frame on which disposed is in a normal hung position. When the picture frame is horizontally level no portion of the indicator arm is visible from the picture front; when the picture is not level a portion of the indicator is visible to the picture viewer.

Abstract: A frame for covering the border area of a wall-mounted display, including a plurality of nails with first heads at the driven end of the nail and second heads axially displaced from the first heads. A resilient structure for supplying directional pressure, such as tension spring wires, is located between the two heads radially extending beyond the first heads when expanded. The nails are driven through the display with the second nail heads holding or mounting the display on the wall. Each of the frame strips includes apertures in its underside which are larger than the first nail heads but smaller than the tension spring wires, permitting such frame strips to pass over the first nail heads and the tension spring wires contracting the wires in the process. These tension spring wires expand to hold the frame in place by resilient action.

Abstract: A hook setting attachment is adapted to be mounted on a fishing rod and includes a movable member mounted on a fixed elongated member adapted to be attached to the fishing rod. A line attaching device is adapted to connect releasably the fishing line of the fishing rod to the movable member. A main spring urges resiliently the members to an initial position, and a latching device fixes releasably the members in a set position against the force of the main spring. A retaining device holds releasably the latch in its latched position and subsequently permits the latch to restore to its initial position to free the movable member and thus cause it to snap back to its original position under the force of the spring, thereby jerking on the fishing line to set the hook in the mouth of a fish.

Abstract: A fishing rod of hollow tubular construction with a side inlet opening for the fishing line adjacent the handle end and a line exit opening adjacent the tip of the rod. Within the tubular rod are located spaced line guides at intervals which are progressively shorter towards the tip of the rod, the line guides being formed of an anti-friction material and so positioned and constructed that when the fishing rod is bent through about 90.degree. the fishing line will not contact the interior surface of the rod.

Abstract: A carrier is movable up and down a heavy downrigger or weight line by a hydrodynamic responsive plane the attitude of which is responsive to the presence or absence of a lightweight fishing line and lure attached to a trailing end of the carrier. Release of the fishing line trips the plane about an axis transverse to the carrier into an upward movement mode.

Abstract: An animal trap, especially for lethally catching small rodents such as mice, comprises a generally rectangular base, to which is pivotally mounted a generally U-shaped striker wire, spring urged from a set position to a striking position. A trigger member, of generally S-shape as viewed from the side, is located adjacent one end of the base, and holds the striker wire against the underside of its middle surface to maintain the striker wire in the latched position. An elongated platform is pivotally mounted on the base and is connected at one end to the trigger member. Immediately above the platform is provided a bait receptacle, with an open side presented away from the trigger end of the base, and a pivoted cover or hood which can open and close top access to the bait receptacle, and is elongated and open-ended. The bait in the bait receptacle is thus accessible only to an animal approaching from the striking end of the base, and by the animals stepping on the platform near the striking end.

Abstract: An insect trap comprises a tubular body compatible with a discarded drink container with one or more of the ends removed to receive removable end funnels as points of entry for the insects. An internally mounted electric lamp is associated with a prong connector adapted to mount in an AC household outlet. The prong connector serves the dual functions of providing both mechanical support and a source of power when the trap is operated in one mode directly from an AC household outlet. In an alternative embodiment, a rechargeable battery pack is enclosed within the cannister and the prong connector provides a means for recharging the battery pack as well as providing means for mechanically supporting the trap when operated directly from an AC household outlet.

Abstract: A modular playhouse comprising a plurality of sections derived from two related modular units. The first modular unit is a right angle triangle having its hypotenuse equal to twice its base. A set of two-dimensional sections based on the triangular module having linear dimensions each of which corresponds either to the base, the hypotenuse or the height of said triangle. The second module is a rectangle having a width equal to the triangle base and a length equal to the triangle hypotenuse. A set of two-dimensional sections based on the rectangular module have linear dimensions corresponding to the length and width of the rectangular module. The box in which the sections are packaged is adapted to form a table-like structure for supporting and securing said sections, the size and proportions of said table-like structure also being derived from the two related modular units. Said sections are connected to each other and to the table-like structure by bendable or flexible strips.

Abstract: A high utility disk toy for use in a multitude of indoor and outdoor games, comprising of a disk hull with a concave/convex surface with a central crown and dome and a peripheral horizontal rim wing flight stabilizer that extends outwardly from the base of the disk hull. In one embodiment of the invention the toy is molded or formed so that the three major parts, the disk hull, central crown and dome and the rim wing flight stabilizer are of a single piece construction with the same lightweight material. In an alternative embodiment of the invention the three major parts are made separately of the same or different materials in various shapes, sizes and colors. Said parts are then assembled by the users, to achieve desired results or to study and observe the effect of a part change on the spin or flight characteristics of a given unit.

Abstract: A doll with embracing arms and concomitant clapping hands movement. The structure features a guided movable panel in the torso of the doll which, when the doll torso is squeezed, moves to a depressed position within a receptacle within the torso so that the arms of the doll pivot about individual pivotal mountings, i.e., each of the arms is partially rotatable about a substantially vertical axis, so that the arms move towards each other as if the doll were embracing the child playing with the doll. An air actuated sound-generating member is preferably centrally mounted to the movable panel below leg panels which guide the movement of the movable panel into and out of the receptacle, and a bellows extends within the lower part of the receptacle between the sound-generating member and the rear side of the receptacle, so that when the movable panel is depressed, i.e., when the doll is squeezed by the child, the bellows forces air through the member and a cooing sound emanates from the member, i.e.

Abstract: In a picture frame vase, a picture frame surrounds a board made of attractive material, and the board has a rectangular opening below a center. A water pocket is mounted on the back of the board just below the rectangular opening, so that stems of flowers may be inserted through the rectangular opening and into the water pocket. The narrow pocket holds the stems inward so that the flowers, standing upright, generally lie along the face of the board. The frame in a preferred embodiment is made with sufficient depth so that the frame, and not the water pocket, contacts the wall. The size of the frame and size and shape and position of the opening are variable, and the water pocket size, shape and position are changeable. One frame, face, board and pocket are a completely molded one-piece unit. A frame has a mirror finish to enhance the appearance of the device when it supports flowers.

Abstract: A planting box having a frame which consists of a plurality of vertical walls and being of polygonal cross-section is provided with vertical channels and vertical ribs. The channels and ribs are complementary in their cross-section. Ribs of one planting box fit into the recesses of another identical planting box, so that a planting arrangement can be erected which consists of a plurality of inter-connected identical boxes. In each channel of the planting boxes supporting shoulders are formed which support the ribs of a laterally adjacent planting box, so that each box is vertically offset with respect to any laterally adjacent box by half of the box height.

Abstract: Method of adaptive control of a recessing cycle on a grinding machine where the roughing is terminated, if the allowance drops to a value determined from the characteristic value derived from the preceeding grinding cycle and from the allowance at the beginning of grinding so that the allowance for finish grinding may have a desired value. The material removal speed at the beginning and at the end of sparking conform to a requested functional relationship. The grinding operation is ended according to the final dimension of the machined part. The finish grinding is carried out, if the requested functional relationship of removal speeds and of the preselected accuracy are not maintained, or if the removal speed drops under the preselected value.

Abstract: This invention relates to improved abrading elements for honing tools containing a plurality of abrading elements, which may be rotated and/or radially moved in contact with the surface to be honed, the improvement comprising an abrading element embodying an abrasive article, having an abrading face and an opposite, substantially flat, attachment face, in a molded plastic, unitary, support structure, the unitary support structure having a substantially flat support face to which the attachment face of the abrasive article attaches, the support face having voids therein such that from about 70 to 90 percent of the surface area of the attachment face of the abrasive article is in contact with the support face and the support face being resiliently supported by a triangular truss support bridge intimately molded therewith.

Abstract: A segmental grinding wheel includes abutting, interfitting and interchangeable composite abrading segments clamped to a rotary chuck, each of which comprises a preformed bonded abrasive segment of simple shape with at least a portion of each side, except a working face thereof, encased in a relatively non-abrasive precision molded plastic shell of precise dimensions, more complex and perfect interfitting configuration. The shell is preferably made of material that is or contains a grinding aid, prevents coolant swarf from filling the pores of the abrasive segment and reinforces the abrasive segment.

Abstract: Portable sand blast apparatus for cleaning a surface at a confined location wherein the apparatus attaches to a conventional sand blasting nozzle and includes a flexible filter shroud having an open end terminating in a resilient sealing ring. The shroud confines the sand blast particles and functions as a filter bag to permit the escape of air while the flexible surface seal prevents escape of the particles adjacent the surface being treated. A handle is mounted at the shroud open end, and a transparent window may be incorporated into the shroud for visibility purposes.

Abstract: A heavy duty drawbar features a Z-type brace which is accessible from the end of a vehicle which carries the drawbar. The Z-type brace provides significant strength for the overall drawbar while still allowing easy access to the hitch fastening bolts for easy changing. Also, the hitch can be placed very close to the vehicle when held by such a Z-type brace. Two of the Z-type braces are supported each between generally vertical frame members and the hitch of the drawbar is supported between the two Z-type braces.

Abstract: Containers having their bodies made from laminate material, such as paper board/plastic foil/metal foil laminates, readily tend to distort and this results in unreliable application of metal foil closure caps used to seal the mouths of the containers. The present invention provides apparatus for successively advancing cylindrical containers of this type beneath a cap-applying device and for restoring distorted containers to their true circular cross-sectional to enable correct application of the caps to the container mouths. The apparatus comprises two star wheels, having equal pitch circle diameters, which are mounted side-by-side with their axes of rotation parallel and spaced apart by a distance less than the common pitch circle diameter of the two wheels. The latter have equal numbers of part-circular recesses in their peripheries for engaging containers.

Abstract: A lawn mowing machine of a self-driving type having a rotating and stopping device for a lawn cutting blade and a driving and stopping device for the machine body, in which a gripping lever for on-and-off operations of the rotating and stopping device for the cutting blade is operable independently of a gripping lever for on-and-off operations of the driving and stopping device for the machine body, while the latter-mentioned lever, when it is gripped, is engaged with the former-mentioned lever to move it in an operative direction, thereby maintaining it in an operative state.

Abstract: A hay conditioner is provided with a crop deflecting baffle having a raised inoperative position and a lowered operating position for deflecting crop downwardly for deposit in a swath. The baffle position control includes a transverse rod having chains attached to its periphery and to the baffle, a ratchet and pawl for holding the rod against the force of gravity, and a handle selectively engageable for rotating the ratchet.

Abstract: The invention seeks to improve the versatility of mower-conditioners by providing a single machine which can produce a relatively confined windrow of cut crop or a relatively scattered windrow for fast drying of the crop and without the need for a separate tedding operation. In accordance with the invention a mower-conditioner comprises mower means for cutting standing crop, rotary crop conditioner and spreader means located rearwardly of the mower means for operating on the cut crop, fixed deflector means positioned rearwardly of the crop conditioner and spreader means and further deflector means movable between first and second positions relative to the fixed deflector means, the fixed and movable deflector means being operable in one position of the movable deflector means to form a windrow of the crop discharged from the crop conditioner and spreader means and in the other position of the movable deflector means to allow the crop conditioner and spreader means to widely spread the cut crop.

Abstract: A machine for cutting and conditioning forage comprises a main frame having, pivotally connected thereto, a cutter platform carrying a cutter bar and two counter-rotating transverse rolls for crushing the forage cut by the cutter bar; the cutter platform is attached at each side to the main frame by an upper side arm and a lower side arm the latter being a hydraulic actuator, the arrangement being such that when the hydraulic actuators are extended from the fully retracted position the upper side arms first turn about their pivots, allowing preliminary forward movement of the cutter platform with respect to the main frame, before they meet respective abutments which prevent further movement, whereupon the cutter platform turns about the pivots fixing it to the upper side arms and is raised from the ground.

Abstract: A tobacco protecting harvester of the floating spear type disturbs the plants a minimum amount but positively controls them at all times, while severing and loading them onto tobacco sticks in respective groups and offloading the loaded tobacco sticks.

Abstract: A stalk-crop harvester displaceable along the ground has a plurality of forwardly open throats each adapted to receive a row of the crop during harvesting thereof and having at its front end to one side a cutting rotor and to the other side a sprocket for a conveyor chain extending back along the respective throat. Provided at the front end of each of the throats is one of a plurality of identical mounting plates which are each symmetrical about a respective upright plane bisecting the respective front end and extending generally in the normal direction of displacement of the harvester. Each such plate carries a pair of similar mounts which axially flank the respective plane, and one of which rotatably carries the respective sprocket and the other of which rotatably carries the respective rotor.

Abstract: The disclosure is of a fodder mower-conditioner mounted laterally of a tractor and comprising two or more rotary-scythe cutters and one or more conditioning rotors all rotating about axes which as viewed from above fall within a horizontal plane of a width equal to and containing the horizontal diameters of the tractor rear wheel tires, the rear wheel tire which is nearer the mower-conditioner being nearer to the nearest cutter trajectory than to the nearest conditioning rotor bearing.

Abstract: A multiple purpose machine for cultivating and harvesting fruit bearing trees having a construction suitable for straddling a row of trees and performing various operations on the trees enclosed therein while continuously moving along a tree row. The agriculture machine is so designed to perform the operations of insecticide and fertilizer spraying, trimming, abscission spraying and harvesting. The fruit harvesting machine comprises an enclosure having two side portions disposed in surrounding relationship to the tree. In the interior of the enclosure, two oppositely disposed rows of fans are offset relative to the tree on either side of the tree so that the air blasts coming from the fan creates a whipping effect around the tree. Interrupting the air blast are vanes which are disposed in a varying angle relative to the air blast to create an oscillating effect on the tree. Hydraulic extenders are connected to the wheels allowing the machine to level its base.

Abstract: A crop baling machine of the kind for producing wound bales has a hollow cylindrical winding compartment having a bottom gap in the compartment cylindrical wall through which the crop is fed by a pick-up device. Conveying rollers then convey the crop to an endless slat conveyor a radially inner run of which is guided at its side edges to sweep round the inner, part cylindrical wall of the compartment. The outer run of the conveyor is guided round the outside of this wall. A rear compartment portion is hinged to open upwardly to release the bale. The construction is relatively simple and robust and requires less power than conventional machines because uniform radial compression of the bale is achieved. Also, dust and particles of crop cannot easily escape from the baling compartment.

Abstract: Disclosed is a combination weed cutter and rake which cooperate by utilization of a common handle to permit weeds cut with a weed cutter to be raked into a pickup pile with the same implement. The rake is pivotally mounted on the handle at its lower end and is movable against a spring force into a work position back to back with the weed cutter with its tines extended below the weed cutter but directed 180.degree. rotationally therefrom, and is locked in this position by a pin passed through a lock ear. The rake is urged by the spring to a stowed position with the tines disposed upwardly toward the mid-section of the handle and away from the action area of the weed cutter. In an alternate form, the rake is held in its work position or stowed position by resilient finger latches.

Abstract: The method and apparatus for forming round conductors directly on a strander and stranding the formed conductors in one or more helical lays, in either direction, on a core. The strander supports a forming apparatus including a plurality of pairs of cooperable forming rolls between which the round conductor passes during reformation.

Abstract: The present invention comprises a process for producing a randomized novelty yarn which exhibits essentially no uniform characteristics along its length and a novelty irregular fabric produced therefrom. The novelty yarn is comprised of at least two unlike yarn ends whose different characteristics, when formed into a combination yarn, produce a fabric which is essentially non-uniform and exhibits a random pattern over the length and width thereof.

Abstract: A laminated indicator which changes in a visually perceptible mode with the passage of time and a method for making such an indicator. At least two layers are provided whereby the molecular migration of an agent in an interior layer to the outermost surface of the exterior layer causes a change which can be visually percepted, e.g., a change in color or shade. Preferred embodiments include the migration of a dye or the migration of an acid or base wherein the outermost layer has the other member of an acid-base pair and a pH indicator.

Abstract: A time striking device for an electronic timepiece including a time striking signal detecting means coordinately arranged and installed in a time indicating gear train of an electronic timepiece and supplying a time striking signal prior to a striking time at every striking time, a reference zero second detecting means counting timepiece driving pulses and supplying a reference zero second signal, a coincidence circuit supplying a primary time striking direction signal by the coincidence of the outputs from these two detecting means, a frequency dividing circuit counting the timepiece driving pulses and sending out the secondary time striking direction signal at a desired time interval, a selecting circuit selectively supplying the primary time striking direction from the coincidence circuit and the secondary time striking direction signal from the frequency dividing circuit to a time striking section.

Abstract: A time detecting switch for a time signalling clock having a time wheel and detecting wheel both rotatably mounted coaxially and a phase detecting type slide switch between the time wheel and the detecting wheel comprises one of the wheels comprising an electrically conductive hub having a flange with a radial contacting surface at one end of the hub, an insulating disc and a sectoral switch plate around the hub, the disc being sandwiched between the plate and the flange with the plate being mechanically and electrically connected to the other end portion of the hub facing the other wheel. The other wheel has a sliding contact for contacting the sectoral plate and the radial contacting surface of the flange is capable of maintaining uninterrupted continuous sliding contact with the signalling circuit of the clock.

Abstract: A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low-frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.

Abstract: A solid state clock for an automobile or the like, which includes display means in the form of a vacuum fluorescent display. Current is supplied from the automobile battery to the display through an integrated circuit or "chip". The voltage from the battery is doubled by an inductor coil coupled between the battery and the integrated circuit. An electrical switching means in the form of a transistor is coupled between the integrated circuit and the inductor coil for supplying converted frequency thereto. A second switching transistor and a Zener diode is provided to regulate the duty cycle of the first transistor to maintain the voltage to the display substantially constant.

Abstract: An electronic timepiece having an intermittent driving means for rotating the second hand step by step, in which the second hand may be driven in two or more ways, one of by a large step as driving the second hand at the rate of one step per second and the other is by a small step such as driving the second hand at the rate of ten steps per second. There is provided a large step driving pulse producing circuit, a small step driving pulse producing circuit, a transducer for transducing the pulse into the rotating motion, a large step transmitting means, a small step transmitting means, a train for transmitting the rotating motion to the second hand, and means for changing the pulses applied to the transducer and for changing the transmitting means.

Abstract: Improved timekeeping apparatus, such as a watch or clock with an electro-optic display simulating a conventional mechanical analog timepiece. Electro-optical material, e.g., liquid crystal material, is activated in selected areas to change its appearance to simulate movement of the hands.

Abstract: A combined cycle electric power generating plant having a steam generator and a gas turbine in which low Btu gas from a coal gasifier is the fuel. The gas turbine drives the compressors for both the air and low Btu gas used to generate the hot combustion gases therein. In addition, the oxygen-containing exhaust gases from the gas turbine are used to support combustion of the fuel in the steam generator.