Abstract: A seeding device which comprises an attachment that can be placed onto existing tillage implements such as field cultivators and utilizes an air distribution system which permits the transfer of a metered amount of seed into individual air carrying lines, wherein each of said lines deposits seeds immediately behind each shovel or furrow opener on the tillage implement to provide an accurate, and large scale seeding device.

Abstract: A processor of photosensitive material includes an automatic control system for providing anti-oxidation replenishment. The control system includes a real time clock for providing an indication of the time of day, and means for storing a schedule of operating hours of the processor. The control system controls anti-oxidation replenishment as a function of the time of day and the schedule of operation. In one embodiment, the control system provides anti-oxidation replenishment on a twenty-four hour basis (even during non-operating hours) by operating the developer circulation pump and the anti-oxidation replenishment pump on a periodic basis during non-operating hours. In another embodiment, which is particularly useful when there are restrictions against leaving on electric power to the processor during non-operating hours, the control system adds a bulk amount of anti-oxidation replenishment at the time of turn-off of the processor.

Abstract: A deadman-type hand switch mounted on a rotary lawnmower handle actuates a magnetically coupled clutch drive to couple the rotary blade to the lawnmower drive shaft. Release of the hand switch removes the magnetic force holding the clutch members together and actuates a mechanical brake to stop the rotation of the blade. Gravity and the brake's action assist in physically decoupling the clutch members.

Abstract: A hanging shelf includes a shelf having a pair of opposing sides, each having a recess proximate its ends. The recess communicates with a slot along essentially its entire depth, and the slot communicates with the exterior of the shelf. A webbing is inserted into the slot and then into the recess. A plug is inserted into the recess for frictionally holding the webbing against the surface of the recess with sufficient force to hang the shelf from the webbing. An edging member conceals from view the manner in which the webbing is attached to the shelf.

Abstract: A photographic reprint system utilizes film segments or strips which are attached to an elongated tab. Information relating to the printing of each frame, including the desired print quantity, the color balance setup to be used in printing the frame, and exposure corrections used in printing that frame are stored sequentially in a storage medium such as a floppy disk. After the tab with attached film segments has been prepared, it is taken to a photographic printer where the tab with attached film segments is advanced sequentially and the film frames are printed. This printing is based upon information which is retrieved sequentially from the storage medium. The photographic printer includes displays for displaying the print quantity, color balance setup, and exposure corrections for each frame. In addition, the printer includes a display for displaying the order number, strip number, and frame number corresponding to the information retrieved from the storage medium.

Abstract: The present invention relates to a shank assembly for a soil undercutter, which is similar to an extremely wide cultivator shovel which travels underneath the ground and cuts the roots from weeds and plants without substantially disturbing the surface of the ground. The shank assembly position can be adjusted by changing the length of a link which holds the shank assembly in position. As shown the link includes a spring trip with a near center type toggle trip release that prevents "floating" and will hold the blade in position until an obstacle is encountered. The shank and spring mounting rod are pivotally mounted with respect to a common pivot, and when the blade encounters an obstruction the toggle linkage releases permitting the shank to pivot rearwardly and upwardly, while the toggle linkage compresses the spring. The trip will automatically reset after the blade clears the obstruction.

Abstract: An automatic fluid replenisher control system for processors of photosensitive material stores density aim point values for control strips of photosensitive material, a developer exhaustion replenishment rate, and anti-oxidation replenishment rate. Signals are provided from which the area and the density of the material processed can be determined. The automatic replenisher control system provides exhaustion replenishment as a function of area and density of the processed material and the stored developer exhaustion replenishment rate, and provides anti-oxidation replenishment as a function of the anti-oxidation replenishment rate and the amount of exhaustion replenishment which has been provided. On a periodic basis, a control strip is processed, and densities of a high and a low density area of the control strip are measured. The automatic replenisher control system compares the low density value with one of the density aim point values.

Abstract: An electric heating system for heating the passenger compartment and defrosting the windshield and rear window of a motor vehicle prior to starting includes an electric air heater unit fixedly mounted in the vehicle trunk under the conventional horizontal shelf behind the rearmost seat of the vehicle. Air drawn from the trunk by a blower is heated by an electric heater and conveyed upwardly into the interior of the vehicle over the rear window and forwardly toward the windshield. The electric heater and blower are energized from a house power receptacle by a power cord retractable into a storage reel in the trunk beneath the shelf when not in use. The heater and blower are automatically energized at a pre-selected time by a manually settable timer located within the trunk.The timer motor is continuously energized from the vehicle battery whereby timer operation is independent of whether the power cord is connected to the house power receptacle.

Abstract: A photographic reprint system includes a preparation station at which film segments or strips are attached to an elongated paper tab. Holes are punched in the tab to indicate the location of each film frame to be printed. Information relating to the printing of each film frame, including the desired print quantity, is stored sequentially in a storage medium, such as a floppy disk. In addition, the desired print quantity is printed in human readable form on the tab. After the tab with attached film segments has been prepared, it is taken to a photographic printer, where the tab with the attached film segments is advanced sequentially and the negatives are printed. Prior to the printing of each film frame, the desired print quantity which was stored in the storage means is retrieved and displayed. If the desired print quantity exceeds a predetermined number of prints, the printer waits for verification from the operator before printing.

Abstract: An elongated passive solar roof ice melter is placed on top of accumulated ice and snow including an ice dam along the lower edge of a roof of a heated building and is held against longitudinal movement with respect to itself. The melter includes a bottom wall having an upper surface highly absorbent to radiant solar energy; a first window situated at right angles with respect to the bottom wall, and a reflecting wall connecting the opposite side edges of the bottom wall and the first window. The reflecting wall has a surface facing the bottom wall and the window which is highly reflective to radiant solar energy. Radiant solar energy passes through the first window and either strikes the highly absorbent upper surface of the bottom wall or first strikes the reflecting wall to be reflected down to the upper surface of the bottom wall.

Abstract: A solar heat collector having a radiant energy transmitting cover which is mounted relative to the supporting frame for the collector in a manner to permit thermal expansion in two orthogonal directions in the plane of the cover and wherein sealing strips are provided to keep the collector sealed from external elements while permitting such expansion.

Abstract: A support member or bridge member used for holding a repair material injector in proper position relative to a piece of glass that is to be repaired, such as a windshield, and which holds the injector under a predetermined spring load even when there is a rounded or curved surface to be repaired. The support is self orienting relative to the windshield so that the injector used for injecting repair materials is held normal to the tangent plane at the opening of a break that is to be repaired in the windshield.

Abstract: A wheel rim mounting device for variable wheel spacing in combination with a conventional wheel hub attached to an axle of a tractor includes a cylindrical sleeve with an inner flange attached to the flange of the wheel hub. A plurality of circumferentially spaced rigid bars are rigidly attached to the outer surface of the cylindrical sleeve with the bars having a plurality of outwardly facing threaded apertures. Circumferentially spaced U-shaped brackets are rigidly attached to the inner surface of a wheel rim and slidably engage the bars attached to the cylindrical sleeve. The U-shaped brackets include a plurality of apertures, two of which are alignable with two of the threaded apertures of the bar. Cap screws engage the apertures of the U-shaped bracket and the threaded apertures of the bar securing the wheel rim to the cylindrical sleeve.

Abstract: A bridge adapter assembly connects a plurality of modular telephone cables and multiple conductor (e.g. twenty-five pair) telephone cables. The bridge adapter assembly includes a housing having first and second generally rectangular major surfaces which are generally parallel to one another, first and second generally rectangular side walls, and first and second generally rectangular end walls. A first multiple contact connector is mounted in an opening in the first side wall, and a second multiple contact connector is mounted in an opening in the second side wall. Modular connector jacks are mounted in openings in the first end wall and the second end wall. Conductors within the housing connect the first and second multiple contact connectors and the modular connector jacks. Since no connectors are provided on either the first or the second major surfaces, a plurality of the bridge adapter assemblies may be stacked to provide a large number of connections.

Abstract: A high volume valve for controlling flow of fluid from a source of fluid under pressure, such as in an accumulator, to an actuator used for testing specimens under high rates of loading. The valve includes a poppet type valve piston that is normally held in a closed position by hydraulic pressure behind the poppet, and when the pressure holding the poppet closed is released, the main supply of fluid under pressure acts on the poppet to open it very quickly. A second accumulator open to the opposite side of the poppet from the main source of pressure is utilized for controlling speed of opening of the valve. The amount the poppet opens also can be adjusted for controlling the rate of flow of fluid from the main source of pressure to the actuator.

Abstract: A flowmeter comprising a disc-like target member mounted in a flow conduit and which forms an obstruction to flow. The meter includes means to measure the differential in pressure on opposite faces of the target or obstruction body to determine the flow rate as a function of such differential in pressure.

Abstract: A calibrator for use in calibrating a two wire DC transmitter includes an oscillator and a light emitter which produce a time varying light signal of known frequency. No physical connection is required between the calibrator and the transmitter, other than a path for the light signal. The transmitter includes a light sensor which is responsive to the presence of the light signal and which produces a time varying calibration signal in response to the light signal. Calibration adjustment circuitry in the transmitter is used to adjust the output of the transmitter when the calibration signal is provided, thereby calibrating the transmitter.

Abstract: An athletic or sports brassiere which includes a one-piece back, strong under-bust support, and breast cups which are made to limit upward bounce during jogging or similar athletic activities, but which have elastic panels supporting the underside of the breast. The one-piece back is T-shaped, with the shoulder straps and side bands part of the one piece back. The garment fastens in the front for ease of use and for comfort.