Abstract: A ratchet wrench consisting of a socket driver head pivoting or fixed at one end, an elongated handle in the middle, and a pivoting extension shaft having an extended handle grip at the opposite end. The wrench is designed to install and tighten nuts onto machine bolts and break loose and remove nuts from machine bolts wherein the nut is in a recessed or confined area making it hard to reach with a conventional fixed-handle ratchet wrench. The extended handle grip is generally U-shaped with a linear section perpendicular to and substantially centered about the end of the extension shaft. The U-shaped handle of the extension shaft extends the user's reach when applying the torque necessary to install or remove a nut located in a cramped work space. In addition, the U-shaped handle includes a magnet for retrieving articles that are out of the reach of the user.

Abstract: Methods of and apparatus for detecting pitches which are illegal in the game of slow pitch softball by virtue of their having exceeded a maximum allowable height of twelve feet in traveling from the pitcher's mound to home plate. Infrared, visible, or ultraviolet light is reflected from a ball reaching a height above the permitted maximum to a detector which is incorporated in a unit typically mounted on the backstop at the appropriate height. The light which is reflected may be natural light, or the light may be generated in and propagated from the backstop-mounted unit. In both cases, the impingement of the reflected light on the detector causes that component to output an electrical signal which is amplified and employed to drive a sound generator, thereby providing an audible warning that an illegal pitch has been thrown.

Abstract: A combination inerting and fire extinguishing system particularly suited for employment in a pulverizing bowl mill (10) of the type that is operative for effecting the grinding of material and that includes a substantially closed separator body (16) in which a grinding table (18) is supported for rotation relative thereto and a plurality of grinding rolls (22) are also supported therewithin such that the plurality of grinding rolls (22) cooperate with the rotating grinding table (18) to effect a grinding of the material disposed upon the grinding table (18). The subject inerting and fire extinguishing means includes a continuous purging means, a backup inerting means, a pulverizing bowl mill clearing means and a water injection fire suppression means. The continuous purging means is operative during any inerting sequence to cause an inerting medium to flow continually through the pulverizing bowl mill (10) so as to ensure that there is no buildup of volatile gases therewithin.