Abstract: A safety goggle assembly in combination with a pair of glasses including corrective lenses. The safety goggles have at least one lens formed of a safety type material. The corrective glasses have at least one lens in a frame in which the frame is form with a bridge portion that fits tightly over a bridge of the goggle. The corrective glasses include an upper bar which fits behind a protruding member in a forehead portion of the goggle. Therefore, the corrective glasses will be secured within the goggle between the bridge and the forehead portion without the use of special securing elements.

Abstract: A prescription lens attachable to a safety glass frame. The safety glass frame is provided with a single lens, a center cross pin and indentation on an inner surface of the safety glass frame juxtaposed the temple pivot pin. A prescription frame includes separate prescription lenses and a central clip that clips onto the cross pin of the safety glass frame. The outer ends of the prescription frame are provided with angular locking ends that are pressed into the indentation on the safety glass frame. Thus, the prescription lens frame is held securely onto the safety glass frame between the safety glass frame and the persons eyes. Damage to the safety glass lens or frame necessitate replacement of only the non-prescription safety glasses because the prescription frame can be removed from the damaged frame and secured to a new safety glass frame.

Abstract: A pair of glasses to which an eyeglass accessory is secured by use of at least one T-slot on the pair of glasses and a complementally-shaped T-bar on the eyeglass accessory. In a preferred embodiment the eyeglass accessory allows corrective prescription lenses to be mounted inside a pair of safety glasses.

Abstract: A protector for easy and quick installation on and removal from the threaded end of a pipe, such as well casing or tubing, when making up a string of well casing or tubing for insertion into a well bore. The protector includes a tension belt constructed in a manner to resiliently bias the protector toward open position with the ends of the tension belt being interconnected by a latching device having an integral handle associated therewith with the tension belt being encapsulated by a resilient body to protect the threads of the pipe. The latching device and associated handle structure is recessed into the body and related housing structure so that no components project beyond the periphery of the resilient body.