The Thread Ruler and Multi-Function Drafting Instrument is a single instrument designed to draw circles, ellipses and parallel lines, and which includes features that allow the instrument to function as protractor, a ruler and a drawing compass. A plurality of Internet protocol packets, each of which contains data and priority information, are received at a first router. The hose system has a further flow sensor for generating a further sensor signal indicative of the respiratory flow proximal to the patient. A latch secures the door and allows it to be released for opening by means of a single action which can be performed using just one hand. The methods includes contacting a substrate with an activator composition which includes a reactive solvent, such as methyl ethyl ketone or acrylic-based monomers, and a reducing agent, such that the treated substrate has a working time of greater than about four weeks, and contacting the substrate with adhesive compositions to result in adhesive bonding. A control system is provided for controlling the operating parameters such as conveyor speed, regulating emitted gas, the velocity generated by the blowers, and the capacity of the BTUs created, during operations of the oven.