Abstract: A multiple purpose exercise device has a stable ground-supported frame having a single structural rail extending vertically at the rear thereof. A series of vertically aligned holes in a flange attached to the rail receive fastening pins for separately adjustably securing an exercise bench and a lever arm. The lever arm may be secured in a rigid position or in an upwardly or downwardly biased position by an interchangeable series of rigid connecting bars and spring members to allow the user to perform various pushing and pulling exercises.

Abstract: Recycled asphalt-aggregate compositions prepared by adding a suitable amount of make-up asphalt to pieces of the used composition and heating the mixture in a rotating cylindrical drum by tumbling the composition over heated pipes as it is gradually directed towards an output end of the drum, the improvement comprising adding an amount of petroleum hydrocarbon to achieve a laid down asphalt penetration of between 25 and 300 dmn at 77.degree. F. A further embodiment of the improved process comprises venting a mixture of hydrocarbon gases and moisture vaporized from the hot composition mixture at the output end of the apparatus, condensing the moisture and removing it and returning the hydrocarbon gases to a combustion chamber for providing heat to the apparatus tubes.

Abstract: In a heating and mixing apparatus having an elongated cavity and a plurality of heating tubes extending along the length of the cavity, the improvement comprises at least one supporting member for the tubes and lying across the cavity along a plane approximately normal to the axis of the tubes and having a plurality of orifices through which the tubes extend. The support member has at least one opening therein to allow composition to pass therethrough, and preferably a plurality of the supports are spaced along the drum and disposed so that the openings of adjacent supports are not aligned with one another, thereby acting as temporary barriers for the composition as it is drawn gravitationally from one end of the apparatus to the other during heating and mixing process.

Abstract: A self-leveling table has a rectangular top bolted to a unitized base. The base has a horizontal rectangular frame which supports the top fabricated from four welded angle irons. The frame is supported by two pairs of crossed legs, welded at the cross, each of which terminate in a foot. The feet are heavy sheet metal bent slightly so as to touch the floor only at the ends. The table top is fitted with latching devices at each end of the top for attachment of a table extension or another table.

Abstract: In an electrically operated dispensing machine in which actuation is initiated by pulling a handle, the improvement comprises a device for simulating mechanical actuation by pulling the handle, the device comprising a ratchet member having a toothed surface and a member engaging the toothed surface as the handle is pulled, the engagement simulating a mechanical actuation.

Abstract: In recycled asphalt-aggregate compositions prepared by adding a suitable amount of make-up asphalt to pieces of the used composition and heating the mixture in a rotating cylindrical drum by tumbling the composition over heated pipes as it is gradually directed towards an output end of the drum, the improvement comprising adding an amount of petroleum hydrocarbon to achieve a laid down asphalt penetration of between 25 and 300 dmn at 77.degree. F. A further embodiment of the improved process comprises venting a mixture of hydrocarbon gases and moisture vaporized from the hot composition mixture at the output end of the apparatus, condensing the moisture and removing it and returning the hydrocarbon gases to a combustion chamber for providing heat to the apparatus tubes.