Abstract: Solar heating and cooling system comprising an insulated fluid containing tank positioned with a portion thereof disposed above and below ground level. The system includes apparatus for transferring heat between the tank and the atmosphere, and to or from the subterranean earth in close proximity of the tank. Baffle means located within the tank are specially arranged to cause fluid contained therewithin to be circulated in a manner whereby heat absorbed by either of the above means is dissipated into the tank fluid. Means may also be provided for directing the flow of the fluid to and from the tank to an outside heat exchanger for heating or cooling a building so that when the temperature within the tank reaches a predetermined value relative to the temperature of the inside of the building, the flow is directed in a manner to accomplish either heating or cooling as may be desired in accordance with the season of the year.

Abstract: This invention relates to an evaporator coil structure for use in building air conditioner systems which improves the operating efficiency of the system, as well as to a method of cycling the on and off operation of the system's compressor to further improve its overall operating efficiency.More specifically a coil structure is provided that will inherently save a large portion of the energy normally wasted due to the energy absorbed by condensation of moisture as air is conducted through the coil.

Abstract: A wrench includes an upper jaw integral with a handle and a force multiplying cam member pivotally mounted on the handle. A lower jaw has a pivot point for pivoting relative to the cam member and the upper jaw. A sliding bar is mounted inside the handle to slide with respect thereto. A free end of a first toggle linkage member is pivotally connected to an ear of the lower jaw and a free end of a second toggle linkage member is pivotally connected to the sliding bar so that the pivot point can move relative to the handle. A tension spring extends between the ear and the lower jaw to urge it away from the upper jaw. An extension integral with the first toggle member forms a second handle coextensive with the first handle and cooperates therewith to move the jaws toward each other as the handles are squeezed together. Such movement continues until the jaws contact an associated object. Continued squeezing of the handles causes the second toggle member to move the sliding bar back from the upper jaw.

Abstract: A wrench includes an upper jaw integral with a handle and a force multiplying cam member pivotally mounted on the handle. A lower jaw has a pivot point for pivoting relative to the cam member and the upper jaw. A sliding bar is mounted inside the handle to slide with respect thereto. A free end of a first toggle linkage member is pivotally connected to an ear of the lower jaw and a free end of a second toggle linkage member is pivotally connected to the sliding bar so that the pivot point can move relative to the handle. A tension spring extends between the ear and the lower jaw to urge it away from the upper jaw. An extension integral with the first toggle member forms a second handle coextensive with the first handle and cooperates therewith to move the jaws toward each other as the handles are squeezed together. Such movement continues until the jaws contact an associated object. Continued squeezing of the handles causes the second toggle member to move the sliding bar back from the upper jaw.