Abstract: A bicycle mounted locking system for theft prevention includes a carrier member attachable to a bicycle frame member. A swingable arm extendable from the carrier member provides for tethered anchorage to a stationary object. A swivel stirrup depending from the carrier member is engageable with a bicycle wheel for providing wheel rotational blockage and securement.
Abstract: A flue gas energy transfer system for increasing the efficiency of hot-water and/or steam boiler. They system utilizes an arrangement of heat transfer ducts with damper elements for the selective diverting exhaust combustion gases. The heat transfer ducts transmit the exhaust gases for contiguous contact with the boiler for conductive heat transfer. The heated gases are retained within the transfer duct after boiler shutdown for maintaining an elevated water temperature.
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