Abstract: Apparatus for controlling a load connected to an internal combustion engine during operation is disclosed and claimed. The apparatus comprises a suction switch (12) which is sensitive to a decrease in vacuum in the manifold (16) of the vehicle when more motive power is required. The switch (16) causes a controller (30), at terminal (44) thereof, to provide a voltage higher than a predetermined set voltage at the D+ terminal of a conventional regulator (46), thereby to interrupt current flow in the excitation circuit of a conventional alternator (48). The alternator is consequently switched off to reduce the load connected to the engine, thereby to make more engine power available to the drive wheels of the vehicle. The apparatus thus also serves as a fuel saving device.

Abstract: The cylinder of a revolver has a recess in its rear face through which the chambers pass and which is surrounded by a shoulder. In the base of this recess is a second recess in which is received an extractor star carried by the ejector rod and itself carrying a cylindrical member having the ratchet thereon. Within the first recess there is a steel clip which carries the cartridges. The clip is of substantially the same thickness as the depth of the recess, and has a plurality of arms radiating from the central portion to form generally circular openings each subtending an angle in excess of 180.degree. at its centre. Each arm is split along a line running substantially radially of the central portion to permit the arm to flex for the purpose of inserting the cartridges into the openings.