Abstract: The invention relates to a shuttle valve designed to retain fluid in a pressurized system when the cap or closure of the filler neck is damaged or left off. In a preferred application, the shuttle valve of the present invention is designed to be installed in the filler neck of an oil storage tank incorporated in a turbine engine of an airplane or other high speed vehicle. The valve head comprises a piston which is disposed to move slideably and is biased by gravity, or other means, to seat in normally closed position near the inner end of a cylindrical sleeve which is suspended coaxially from an annular flange in the mouth of the filler neck. The cylindrical sleeve has an axial length which substantially exceeds that of the piston, which in one embodiment is a hollow cylinder closed at one end.

Abstract: This patent relates to roller bearing self-aligning pillow blocks, which are constructed to include one or more sealed roller bearings disposed in tangential relation to the primary shaft at one or more positions around its periphery. Each roller bearing is mounted to rotate about its own stud, so that it acts as a cam follower. In some embodiments the roller bearings are disposed singly, or in pairs, in three positions spaced-apart 120 degrees around the periphery of the shaft. In other embodiments the bearings disposed to the right or the left of the center are in diametrically-opposite positions. Alternatively, in another embodiment, the rollers are disposed only in contact with the upper surface of the shaft at positions spaced-apart, say, 45 degrees.

Abstract: A rotary internal combustion engine comprising a stationary, water-cooled housing having a large cylindrical bore in which a hollow cylinder with end walls rotates at a uniform speed. On said cylinder a pair of wedge-shaped pistons is mounted diametrically-opposed to a similar pair of reactor elements carried by a multiple-splined shaft, said reactor elements and said pistons forming a combustion chamber whereby a gas and air mixture is compressed prior to ignition; and while expansion is taking place said reactor moves many degrees oppositely to the uniformly rotating piston and thereby increasing the power of the engine.

Abstract: A security device to protect a telephone line from unauthorized outgoing calls from a telephone unit, comprising either a conventional or cordless type receiver, which includes an access limiter and bypass circuit interposed between the base telephone and the telephone line which responds to an access enabling device to unblock the access limiter and bypass to outgoing calls. In one form, the access enabling device is an electronic circuit which responds to a multidigit dial signal to unblock the outgoing calls. In a simpler form, the access enabling device includes mechanically actuated device, such as a lock and key, to block and unblock outgoing calls.

Abstract: A kit which comprises a plurality of multicolor water-based fluid dispensers together with an eradicating fluid dispenser wherein the coloring fluid dispensers may be utilized to create brilliant colored markings; and the eradicating fluid dispenser may be utilized to "erase" the marks from a substrate surface without substantial bleaching or staining of the surface. In a supplement or modification, the multicolored water-based fluids are utilized in individual color stamp pads, together with a stamp pad utilizing the eradicating fluid, which are adapted for use with a series of stamps to make decorative designs.

Abstract: A waste oil drain collector and storage container kit for collecting and storing waste fluid, such as oil, drained from the engine of motor vehicles. A disclosed embodiment comprises a rectangular receptacle, which, in oil collecting position rests on a broad, flat base, supporting a drain pan in the uppermost position. A lid is designed to cover the drain pan when the receptacle is placed on end with a handle uppermost, in carrying position. A particular feature of the receptacle is a cylindrical valve which is manually rotated through three positions, a first collecting position which opens a passage from the oil drain pan to a storage container; a second pouring position which closes the passage to the storage container from the oil drain pan and opens a passage from the storage container to an external dispensing spout; and a third carrying position in which the passages into and out of the storage container are closed, and a cap is screwed in place on the dispensing spout.

Abstract: A lock-activated cut-off switch for use in connection with electrically operated overhead garage or roll-up warehouse doors. The switch of the present invention takes the form of a spring-biased, counter-weighted, wedge-shaped, trap door or gate disposed to close against the switch frame having an opening which is lined up with the opening constructed to receive the lock bolt or bar when the lock is actuated. A pair of conducting wires which respectively terminate on contacts at the lower end of the frame on opposite sides of the opening are electrically connected through contacts and a conductor on the trap door or gate, when the gate is closed, and are instantly disconnected when the trap door or gate is opened by actuation of the lock bar or bolt. This breaks the circuit to the electrically controlled operator disabling the mechanism for opening and closing the garage doors.

Abstract: A strip of highly absorbent cellulose paper which has been treated to increase its wet strength, and to render it more tear resistant, is folded lengthwise, so that one layer of the fold is slightly wider than the other, providing a lip along the outer edge. The folded strip is then formed into a small roll which is accommodated in a hollow container so that the free end is pulled out in tangential relation to the roll. Embedded in the top of the container is a cutting edge disposed to cut off increments of any desired length when the strip is held in contact with the cutting edge.

Abstract: This discloses an improved sine bar for accurate measurement of angles for machining operations, and methods of its use. This comprises a rectangular elongated base member, projecting from opposite ends of which are cylindrical connecting rods. A conforming reference bar is hingedly connected to the base member, and has a cylindrical bearing pin fastened beneath one end. When the sine bar is open to accommodate one or more calibrated gauge blocks, a spring-biased chain keeps the gauge block(s) in position between the base member and the bearing pin. A recess in the base member permits measurement of small angles. This device is especially adapted for use in setting up a lathe compound to calibrated angular positions, but is also useful for other types of milling and machining operations in which the sine bar rests on a flat surface.

Abstract: This invention relates to improvements in a container for measuring discrete quantities of poured-out liquid, which comprises a primary storage container, a measuring head, and a modified pour-spout, formed as a unitary body. The improvements include a first embodiment having a single pour-out mouth, also serving as a filler opening, wherein a removable insert plug formed integrally with the modified pour-spout is interposed into the neck between the measuring head and the primary container. In a second embodiment including a single pour-out opening, and a removable plug between the measuring head and the primary storage container, the modified pour-spout is formed integrally at the back of the measuring head by a compression-molding process. In another embodiment, having a single pour-out opening, an annular bulge interposed in the neck between the measuring head and the primary storage container provides an orifice for filling, and is collapsed to provide closure.

Abstract: A security modular connector constructed to fit into a conventional jack or receptacle for use in securing a connection in a telephone or computer system, such as for connecting a telephone base unit to a telephone line. The security modular connector differs from a conventional modular connector in that the spring-biased tab which bears on a stop when in electrically-engaged relation with the jack or receptacle is cut off so that it does not protrude through the opening of the latter, thereby denying manual access to the tab. Furthermore, a flange on the outer end of the security modular connector substantially closes the opening in the jack or receptacle when the connector is in engagement with the former. Thus, unauthorized persons are denyed access to the line. A special tool enables authorized persons to pry open the security modular connector from the face of the jack or receptacle, and depress the spring-biased tab, releasing the security connector from the jack or receptacle.