Abstract: A waste gas flare igniter includes a pair of ignition tubes, each having a fuel line and an electrode extending therethrough to points near the ends of the tubes. The tubes are connected to an air distribution box which is slidably mounted on linear guides. A jackscrew and motor translate the air box and tubes between an extended position wherein the tubes connect with inwardly directed extensions passing through a heat shield at the end of the flare pipe for ignition of the waste gas and a retracted position spacing the tubes from the heat shield. The air box is connected by a telescoping duct to a blower, and the fuel line to a valve and pump to provide a fuel-air mixture which is ignited when the tubes are extended to ignite the waste gas.

Abstract: A fluid flow control and mounting thereof retains a flexible tube in a constant position relative to a stationary structural member and selectively constricts the tube to control the flow of a working fluid transmitted therethrough. The flow control includes an anvil engaged by the tube and a mounting connected to the anvil for detachably connecting the same to a structural member. The anvil has a transversely curved surface with a transverse concave groove therein for receiving and securely yet detachably positioning and retaining the tube therein. Flow control members are movably mounted on a rod extending from the anvil surface and include a slidably mounted clamping disc engageable with a tube positioned in the groove and an adjustment knob movably mounted on the rod. The clamping disc has a roughened surface for frictionally engaging the tube and an opposite smooth bearing surface for engagement with the adjustment knob.