Abstract: An alarm system for signaling incapacity of a vehicle driver to sustain a safe level of attention to his driving as may be occasioned by want of sleep or the influence of alcohol or drugs, with such system including an electric enabling switch in series with the ignition switch and the battery. A normally closed push button alarm switch is mounted on the steering wheel whereby a driver's hand can concurrently grip the steering wheel and depress the button to keep the alarm switch open. The alarm switch is in series with the other switches as well as with an alarm signaling device so that an alarm is given when the driver's grip on the steering wheel is relaxed. Another signal device is connected in series with the battery and the ignition and enabling switches whereby passengers may be assured that the alarm system is energized and has not been disabled by an overconfident driver.

Abstract: Therapeutic apparatus having a frame that includes a pair of laterally spaced A-frames in part defined by a user's seat extending therebetween and seat supports. A pair of independent tubular guides are connected to the apices of the A-frames for pivotal movement about aligned transverse axes, and each of the guides has an elongated and resiliently extensible operating element reciprocably extending therethrough that is provided at its forward end with a laterally extending handle and at its rear end with a laterally extending and spring-mounted roller that is engageable with the user's back upon the user urging the operating element forwardly in its guide. Rocking of a guide and its element in a vertical plane by the user manipulating the associated handle causes the associated roller to roll up and down against the user's back. A foot operable crank is mounted at a position below and forwardly of the seat to enable the user to exercise his legs while exercising his arms and shoulders to massage his back.