Disclosed herein are embodiments of an oxygen torch cutting system. In one embodiment, the oxygen torch cutting system comprises a cutting torch supplied with an oxygen gas source, a fuel gas source, and a third gas source. The third gas source can be a mixture of hydrogen and oxygen gasses (HHO) or hydrogen gas (H.sub.2) and can be added to the fuel gas source. The oxygen torch cutting system can include one or more gas lines, gas control valves, and flashback arrestors. The addition of HHO or H.sub.2 gas to the fuel gas source can be facilitated by a tee connector. The inclusion of HHO or H.sub.2 gas into the fuel gas source increases the efficiency of the oxygen cutting torch system by replacing a significant amount of the fuel with less expensive HHO or H.sub.2 gas and increases the oxidation rate of metal and creates a cleaner flame.

A swivel head assembly for a dual head oxy-fuel torch which incorporates a fixed oxygen delivery head and a 360 degree rotatable fuel delivery head mounted coaxially upon the oxygen delivery head, such that regardless of whether the torch is pushed forward, drawn backward or manipulated to either side, the fuel delivery head can be readily repositioned relative to the oxygen delivery head so as to always lead the delivery of oxygen for preheating, thus accommodating ease of arm movement and avoiding the need for cumbersome body movement and positioning around the target cutting surface.

A swivel head assembly for a dual head oxy-fuel torch which incorporates a fixed oxygen delivery head and a 360 degree rotatable fuel delivery head mounted coaxially upon the oxygen delivery head, such that regardless of whether the torch is pushed forward, drawn backward or manipulated to either side, the fuel delivery head can be readily repositioned relative to the oxygen delivery head so as to always lead the delivery of oxygen for preheating, thus accommodating ease of arm movement and avoiding the need for cumbersome body movement and positioning around the target cutting surface.

A technology for processing (and/or working) a gemstone is provided, and specifically, a method for, and an apparatus for manufacturing a high-hardness diamond simulant by cutting a gemstone into a 100-sided body are provided.

A cutting torch comprises a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to generate ignition gas from heating oxygen and fuel gas, a heating oxygen bypass channel originating from the heating oxygen channel and coupled to the ignition mixer, the heating oxygen bypass channel configured to supply heating oxygen to the ignition mixer, a fuel gas bypass channel originating from the fuel gas channel and coupled to the ignition mixer, the fuel gas bypass channel configured to supply fuel gas to the ignition mixer, and a fuel gas shut-off valve located on the fuel gas bypass channel. The shut-off valve is configured to turn off the supply of the fuel gas to the ignition mixer, and the ignition mixer supplies only heating oxygen to the cutting oxygen channel.

A cutting torch comprises a cutting oxygen channel for supplying cutting oxygen, a heating oxygen channel for supplying heating oxygen, a fuel gas channel for supplying fuel gas, an ignition mixer configured to generate ignition gas from heating oxygen and fuel gas, a heating oxygen bypass channel originating from the heating oxygen channel and coupled to the ignition mixer, the heating oxygen bypass channel configured to supply heating oxygen to the ignition mixer, a fuel gas bypass channel originating from the fuel gas channel and coupled to the ignition mixer, the fuel gas bypass channel configured to supply fuel gas to the ignition mixer, and a fuel gas shut-off valve located on the fuel gas bypass channel. The shut-off valve is configured to turn off the supply of the fuel gas to the ignition mixer, and the ignition mixer supplies only heating oxygen to the cutting oxygen channel.

The invention relates to an ozone supply unit (26) for a flame burner apparatus and/or an oxygen cutting apparatus (10), comprising an oxygen inlet (28) to be supplied with oxygen (18), an ozone generator (32) coupled to the oxygen inlet (28) and configured to convert at least a part of the oxygen (18) supplied to the oxygen inlet (28) into ozone (18a), and an outlet (30) coupled to the ozone generator (32), wherein the outlet (30) provides at least a part of the oxygen (18) supplied to the oxygen inlet (28) and at least a part of the ozone (18a) converted by the ozone generator (32). The ozone supply unit (26) is configured to be integrated into a flame burner apparatus and/or an oxygen cutting apparatus (30). The invention further relates to a method for supplying ozone to a flame burner apparatus and/or an oxygen cutting apparatus (30).

The invention relates to an ozone supply unit (26) for a flame burner apparatus and/or an oxygen cutting apparatus (10), comprising an oxygen inlet (28) to be supplied with oxygen (18), an ozone generator (32) coupled to the oxygen inlet (28) and configured to convert at least a part of the oxygen (18) supplied to the oxygen inlet (28) into ozone (18a), and an outlet (30) coupled to the ozone generator (32), wherein the outlet (30) provides at least a part of the oxygen (18) supplied to the oxygen inlet (28) and at least a part of the ozone (18a) converted by the ozone generator (32). The ozone supply unit (26) is configured to be integrated into a flame burner apparatus and/or an oxygen cutting apparatus (30). The invention further relates to a method for supplying ozone to a flame burner apparatus and/or an oxygen cutting apparatus (30).

An organic colorant complex with the following general structure:

AB.sub.n(DE).sub.mT.sub.xQ.sub.y

wherein A is an organic chromophore; B is an electrophilic reactive group covalently bonded to A directly or through a linking group; D is a nucleophilic linking group covalently bonding B and E, selected from the group consisting of NR, O, S, and 4-oxyanilino (—HN-Ph-O—); wherein R is selected from the group consisting of H, alkyl, aryl, and E; E is an organic alkyl and aryl group or an end group; T is an ionic group covalently linked to A; Q is an organic cation, bonded to the organic chromophore A through ionic interaction with T; n, m, x, and y are independent integers from 1 to 10.

A downhole torch system and method of use includes a cylindrical housing, a protective material provided on at least one of the cylindrical housing and the fuel load, and a fuel load located within the cylindrical housing. The protective material is provided between the fuel load and the cylindrical housing to protect the cylindrical housing from adverse effects caused by the reaction of the burning fuel and/or the subsequent production of combustion products for cutting and/or perforating processes during operation of the torch system. The protective material significantly improves the cutting and/or perforating performance of the torch system.