Abstract: Apparatus for dispensing coiled flexible electrical conduit includes a base having a fixed portion and a rotating portion and the rotating portion of the base is adapted to receive a container of the flexible electrical conduit. A form is placed within the container and within the coils of the flexible conduit within the container and is secured to the container and the rotating portion of the base to provide joint rotation of the rotating portion of the base, the container, and the form as flexible conduit is dispensed.

Abstract: The two-way and three-way plug valves disclosed include plug members having O-rings in place in continuous grooves defined by inner and outer side walls and a bottom wall extending therebetween. Recesses are formed at spaced apart points along the O-ring groove inner wall to provide an area into which segments of the O-ring may be displaced during existence of a pressure differential across the O-ring. The O-ring groove inner wall recesses are in fluid communication with one another by means of passages, bores and channels defined by the plug member. Edges along the recesses frictionally engage O-ring segments to restrain same against displacement from the O-ring groove.

Abstract: A lawn or turf aerating, dethatching, and grooming apparatus which derives the power needed to perform these functions from a movement of the apparatus against the lawn or turf surface that is desired to be affected by the apparatus. The apparatus is adaptable to a wide variety of lawn maintenance devices and particularly as a replacement front roller for a reel-type lawn mower.

Abstract: A game feeder includes a feed container having a funnel shaped outlet immediately above a distributor mounted for rotation on the end of a motor shaft. When the motor runs, the plate spins and broadcasts feed around the feeder. The distributor includes an inlet having a member extending across the path of movement of feed from the container outlet toward the distributor. When the distributor turns, any trash extending down from the container outlet is cut or abraded by the spinning member. The distributor includes one or more outlets having a swinging gate providing a closure for the outlet in a stopped or resting condition of the motor and preventing movement of feed unless the motor is running. When the motor turns and the distributor spins, the gate opens by centrifugal force allowing feed to pass through the distributor outlet.

Abstract: Sprayable, pre-mixed, mine sealant compositions having enhanced strength properties and capable of retarding flame propagation and suppressing combustibility of substrate materials are disclosed in three general forms. In the first form, an alkaline silicate material such as sodium silicate is employed with perlite and a mineral acid in order to provide the above properties. In a second formulation, the first form is augmented by white pigments. In a third formulation, additional bulking materials e.g., cellulose are added to provide enhanced structural integrity and mine sealant qualities.

Abstract: The multiplexer in a multichannel, secure digital communication system repetitively embeds a sequence of byte length uniquely coded synchronizing signals in each of n successive frames of one channel of a multichannel, time multiplexed digital bit stream. Redundant protective relay data and associated parity check data are embedded in four of the n frames in a second, preferably adjacent channel, with the remaining of the n frames in the second channel containing additional of the uniquely coded synchronizing signals. The time multiplexed serial bit stream is transmitted to a remote station, preferably by fiber optic communications media. The most recent bits of the received serial bit stream equal in number to the number of bits spanned by the two channels in n frames are retained in n-1 serially connected serial in, serial out shift registers. Sixteen bit portions, a frame apart, of the retained most recent bits of the serial bit stream are applied to n serial in, parallel out shift registers.

Abstract: Plastic light standard includes a nonconductive plastic pipe with an end for receiving electrical conductors or electrical conduit and a cap secured to the upper portion of the pipe above ground. The cap includes an aperture in which an electrical element is secured and through which electrical conductors extend from the electrical element into the standard for connecting the conductors from underground with the conductors from the electrical element. Stabilizer plates are secured to the pipe in the ground for stabilizing the pipe to prevent the pipe from moving.

Abstract: The specification discloses a hand held portable facing device to be used primarily for facing polystyrene building panels after installation. The facing device is constructed of a frame, a wire planing element, and tension arms which mount on the frame for keeping the planing element taut. The facing device incorporates an electrical power system which conducts electrical current from an external source, through an electrical power unit, through a safety switch, through the wire planing element, to the frame and earth ground which are electrically interconnected. The current flow heats the wire planing element and enables it to shear a flat polystyrene panel. Guide arms capable of resting on and following the flat panel are incorporated into the frame, and the tension arms and wire planing element are so attached to the guide arms that the wire planing element follows the path of the guide arms leaving a flat smooth surface.

Abstract: An apparatus which facilitates the pocketing of documents in a pocket in a business machine like a sorter. As a document is to be pocketed, it is moved along a rib structure (located on a pusher plate) which has a decelerating portion thereon to decelerate the document and to move the document against a side member in the pocket as it approaches a stop member within the pocket to thereby minimize the noise created by the first few documents entering the pocket. A second rib structure positioned near the top edge of the pusher plate engages the leading edge of a document to direct the document against a side wall in the pocket to also minimize the noise mentioned.

Abstract: A three-way valve housing is shown with side wall and end wall defined ports. A cylindrical plug member has oblong O-ring seals which jointly extend about a major portion of the plug members circumference. A central chamber in the plug member receives fluid through a laterally directed opening which is rotatable through less than 180 degrees into communication with a housing side wall port. The plug member chamber is in open communication with the port in the valve housing end wall. A snap ring is removable to permit extraction of the plug member from the housing for servicing purposes.

Abstract: A machine for grinding the depth gauges of saw chain cutter links includes a saw chain carrier mounted for movement toward and away from a power grinding element. As the carrier moves a cutter link toward the grinding element, the cutter tooth of such link moves beneath indexing structure which includes a shield plate which then moves with the carrier toward the grinding element. Upon continued movement, the shield plate contacts an indexing roller which forces the plate down against the top of the tooth. After the plate bottoms against the tooth, the plate forces the indexing roller upwardly. The roller, being linked to the grinding element, lifts the grinding element to its grinding position for grinding the depth gauge of such link. An alternative embodiment includes a brake activated by the carrier to hold the grinding element in its grinding position after the cutter tooth passes beneath the indexing roller.

Abstract: An inflatable hydroplane apparatus uses a pneumatic vehicle innertube with a flexible fabric cover including an annular flexible fabric positioned partly covering said innertube and forming a smooth bottom therefor. A handle strap is stitched to said cover for the rider to hold on to and a tow rope attaching strap is stitched to the bottom portion of the cover for attaching a tow rope from a boat for pulling the hydroplane. The innertube is inflated in the cover to form the hydroplane and deflated for storage.

Abstract: An inflatable hydroplane apparatus uses a pneumatic vehicle innertube with a flexible fabric cover including an annular flexible fabric positioned partly covering said innertube and forming a smooth bottom therefor. A handle strap is stitched to the cover for the rider to hold on to and a tow rope attaching strap is stitched to the bottom portion of the cover for attaching a tow rope from a boat for pulling the hydroplane. The innertube is inflated in the cover to form the hydroplane and deflated for storage.

Abstract: A sealing member for sealing between a member movable relative to a body or housing. An elastomeric material is mounted in a space formed between the movable member and the housing. The elastomer serves as an initial primary seal at lower pressure differentials, while structure is provided with the sealing member to inhibit elastomer creep or extrusion at increased pressures.

Abstract: A protective relay system for providing pilot protection for two and three terminal alternating current transmission lines, which system does not require a continuous metallic circuit between the relaying points. The evaluation circuit develops operating and restraining quantities, modified by a predetermined constant which determines the operating characteristic of the relay system.

Abstract: A fully functional spinning toy of the yo-yo type is adapted to serve as an easily mailable written greeting or message medium. The extreme thinness of the device enables standard envelope mailing within postal regulations. The device is also useful for advertising, as a premium, and as a business gift.

Abstract: A hydraulic safety hose apparatus is disclosed, which includes a pressurized fluid source for producing hydraulic fluid pressure in the apparatus, a hydraulic safety hose, and a hydraulic pump. The hydraulic safety hose is composed of inner and outer hoses with an annular passage between them to receive pressurized fluid in the event of rupture of the primary inner hose. A series of bleed holes in the outer hose allows the escaping fluid to harmlessly dissipate under low pressure without endangering the operator and other persons in the vicinity of the hydraulic system.

Abstract: A saw chain grinding machine has a disc-shaped grinding wheel mounted for rotation in a fixed position on the base of a grinding machine. A saw chain holder is mounted at one end of a support arm extending across and beneath the wheel, with the opposite end of the support arm being mounted on the base for swinging movement about a pivot axis parallel to the axis of rotation of the grinding wheel. Swinging movement of the support arm causes a corresponding swinging movement of the saw chain holder along the periphery of the wheel. A stop fixed to the machine base limits swinging movement of the support arm in one direction to determine a grinding position for the saw chain holder along the periphery of the wheel. The support arm is adjustable lengthwise for moving the holder and thus a saw chain cutter element toward and away from the wheel in a line extending generally toward the axis of rotation of the wheel when the arm is in grinding position against its stop.

Abstract: A pair of drive and idle pulleys are journalled from horizontally spaced apart elevated mounting structures and an elongated flexible tension member is trained about the pulleys. An elongated member extends between and is anchored relative to the mounting structures and a wheeled carriage is supported from the support member for rolling therealong. A crank is journalled from the carriage and a rotary friction drive member is journalled from the carriage and rollingly engaged with the support member for rotation relative to the carriage in response to its movement along the support member. One-way drive structure drivingly connects the drive member to the crank and an animal simulating structure is dependingly supported from the carriage and includes at least a first oscillatable body part simulating member. Connecting structure is connected between the crank and the body part simulating member for oscillation of the latter in response to rotation of the crank.

Abstract: An artificial grass mat is employed with glass marbles or small plastic balls for playing standard marbles, modified pool or table croquet. In all cases, the marbles or balls are propelled by knuckle or finger action without the use of mallets or cue sticks. Croquet wickets and goal posts are fabricated from readily bendable pipe cleaners and are anchored to plastic mounting plates which lie beneath the playing mat. The wickets and posts are received removably through slits and openings in the grass mat enabling the mat to be used selectively for at least three different forms of games. A safe rack formed of flexible plastic is employed for racking marbles or balls in the pool game. A perimeter netting on a supporting board or table structure confines marbles or balls to a shallow trough or gutter area surrounding the playing mat.