Abstract: A bola deployment device for launching a bola from a firearm has a housing member, a plurality of tubular segments with pockets for inserting a bola weight and a stowage area for placing the bola cord. The bola deployment device is attached to the end of a firearm and when fired, the weighted ends of the bola effectively separate from each other as the bola departs from the bola deployment device.

Abstract: A rocket-launched line charge apparatus for obstacle breaching includes at least two explosive charges connected by detonating cord. The detonating cord passes through a flexible tubing, and is bunched in a sinuous arrangement within the plastic tubing so as to store excess detonating cord. The detonating cord is attached to the two ends of the flexible tubing by cable ties. The explosive charges, the tubing and the detonating cord are enclosed in a fabric sock formed by overbraiding, the fabric sock being the strength member connecting the two explosive charges during deployment. The plastic tubing arrangement is applicable to storage of other cords in other systems involving tethered deployment of objects.

Abstract: Very thin films of liquid anti-reflection materials are applied to optical substrates to increase effectively visual clarity and visual acuity by reducing reflection light losses, reducing internal reflections and increasing light transmission. The primary properties of the materials which are useful as anti-reflection films are characterized as non-volatile, optically clear liquids having a refractive index less than the refractive index of the optical substrate to which they are applied. Low cost, effective anti-reflection coatings are thus applied to optical substrates, such as eyeglasses, using a single liquid layer of the anti-reflective material.

Abstract: The playback of a compact disc is enhanced by adhering to the compact disc an annular ring to increase the frictional engagement between the disc and the spindle upon which it turns. The playback is further enhanced by adhering a layer of soft, flexible material to dampen vibrations caused by the variations in speed by which the compact disc turns.

Abstract: Chain hanger devices are described for attachment to a bicycle frame for supporting and retaining the drive chain vertically and laterally when the rear wheel and drive sprocket are removed from the frame. The hanger devices engage the chain without requiring manual manipulation of the chain. The rear wheel can be inserted into the frame again without physically handling the chain.

Abstract: A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and a minor amount, effective to inhibit the accumulation of black sludge in a gasoline fueled internal combustion engine, of an aliphatic hydrocarbon substituted aromatic hydrocarbon. The aliphatic hydrocarbon substituted aromatic hydrocarbon comprises a compound of the formulaAr--R--(Ar).sub.nwherein each Ar is independently an aromatic nucleus having from 0 to 3 substituents, R is a hydrocarbyl group, and n is an integer ranging from 1 to about 6. In a further embodiment, the aliphatic hydrocarbon substituted aromatic hydrocarbon further comprises from about 1 to about 50 percent by weight of tetrahydronaphthalene or hydrocarbyl substituted tetrahydronaphthalenes.

Abstract: A moisture sensing detector of snow, sleet, ice and rain. The detector includes a sensing probe and coacting control circuitry for receiving the moisture signal from the probe and actuating associated equipment such as, for example, a railroad switch heater. The probe includes sturdy substantially elongated electrically charged aluminum electrodes spaced apart a very small distance (1/8" gap for example) by fiberglass strip insulation. Any moisture (even a drop of water) bridging the small gap completes a circuit between the electrodes which triggers the control circuit into actuating the railroad track switch heater or any like equipment. The electrodes are substantially elongated to provide a large sensing area. A heating unit is secured to one electrode to heat the entire length of the probe thereby melting any ice, sleet and snow (since they do not conduct an electrical current) thus permitting the probe to detect resultant moisture.

Abstract: An apparatus containable entirely within the tank of a toilet tank and bowl combination and adapted to dispense a predetermined amount of a liquid formulation into the toilet bowl in response to cycling of the water level in the tank during a flushing operation of the toilet. The apparatus comprises a reservoir for storage of a supply of the liquid formulation and a positive displacement dispensing pump which is driven through its working stroke by a float vertically movable in response to the cycling water level in the tank, said float having an open top and sealed bottom and peripheral sidewall defining a vertically extending interior cavity which nests the reservoir.