Abstract: A heating appliance which burns solid fuel has a bottom feed to a furnace vessel, conveniently by means of an auger. The furnace vessel is arranged to be driven in rotation which assists keeping a uniformly distributed fire in the furnace vessel, and makes possible the discharge of ash overflowing from the top of the vessel through an airlock system. Preferably, a water jacket surrounds the furnace vessel and a poker is moved in the furnace vessel as it rotates. Combustion air can be blown or sucked in by a fan. The heating appliance can be a domestic cooker, also heating water for central heating.

Abstract: A tip-up trailer with a hydraulically operated tipping body having a device for preventing the tipping body sticking up in the raised position. This is done by providing a back pressure to bear on the piston of a hydraulically operated ram to assist in the commencement of the lowering operation. Preferably this back pressure is provided in the ram which raises and lowers the tipping body.