When was the cutting torch invented

The removed the boiler in less than 10 days. Thus, our acetylene industry was born and commercialized. Starting with lighting homes and street, cooking in homes, lighting automobiles and metal workings. The Harris Group website states that in , John Harris of Cleveland, OH discovered oxy-acetylene cutting while he was using the oxy-fuel process in his hobby shop to produce synthetic rubies and sapphires.

He accidentally discovered that some of the free oxygen had actually cut the steel plate he was using as the base for his experiments. In , he formed the Harris Calorific Company to manufacture and sell oxy-acetylene welding and cutting equipment. Harris Group has been part of Lincoln Electric since KG in Baden-Baden, Germany in The company became a global leader in metal cutting by specializing in high quality torch height controls for the plasma and oxy-fuel processes.

Kurt Nachbargauer, the IHT managing director with more than 30 years experience, took over running the company in when Dr. Schmall retired. The torch offers the ability to fully control torch to plate distance throughout the cutting sequence. Additionally, the torch includes an internal circuit that can ignite the fuel gases upon command. A study of the graphical representation in FIG.

The attachment has been found to be so efficient that in many cases the oxygen can be either eliminated or substantially reduced by screwing the adaptor 11 and tubular member 19 apart from one another as shown in FIG. Sufficient ingress of air through the forwardly sloping air apertures 36 occurs to enable low temperature brazing to take place, but it is necessary for the nozzle 22 to be removed, the flame occurring where the gas issues from the tubular member In oxy welding, perfect combustion condtions will exist if oxygen and acetylene are mixed in a 5 to 2 ratio volumetrically, but the most commonly used ratio is between 3 and 4 volumes of oxygen to 2 volumes of acetylene, indicating that some of the envelope flame draws its oxygen for combustion from the air, entrained by the moving gases.

When this air is mixed with the envelope flame, oxidation of the work piece can take place, and it is believed from the results of our experiments that it is the heated air in and around the envelope flame which is responsible for oxidizing metals such as aluminum. On the other hand with this invention we have been able to weld the common grades of aluminum with a minimum of flux and a very small quantity of gas, since the slow moving small diameter flame entrains less air. Owing to the more efficient combustion of gas, much less gas is used when this attachment is employed.

In one test which was supervised by Peter Linden Harrison, B. Thus it will be seen that the invention provides quite remarkable results both for the quality of weld which can be achieved and for gas consumption. It will be obvious to those skilled in the art that various modifications, changes and equivalents may be made and used in the present invention.

The scope of the invention is therefore to be determined by the appended claims. An oxy-acetylene torch attachment comprising a tubular adaptor having an inner bore of such diameter as to engage over the outer surface of the hand piece bend of a welding torch, a tubular member having a cylindrical wall defining a mixing chamber extending in a downstream direction from the adaptor and terminating in a nozzle at the discharge end of the mixing chamber, a hollow body having a threaded bore, the adaptor and tubular member each having a thread on its outer surface threadably engaging said threaded bore, the downstream end of said adaptor terminating in a frusto conical shape which converges in a downstream direction, the upstream end of said tubular 2.

An city-acetylene torch attachment according to claim 1 wherein said nozzle threadably engages the downstream end of the tubular member has a bore of the same diameter as the mixing chamber, an outlet aperture, and a frusto conical wall detfining an acute cone angle extending between said bore and outlet aperture.

An oxy-acetylene torch attachment according to claim 1, wherein said nozzle threadably and releasably engages the downstream end of said tubular member. Guinea Ecuatorial Equatorial Guinea. Madagasikara Madagascar. Moris Mauritius. Sao Tome and Principe. Seychelles, Sesel Seychelles. Tanzania, United Republic of. Uburundi Burundi. Western Sahara.

Aotearoa New Zealand. Belau Palau. Brunei Darussalam. Dhivehi Raajje Maldives. Korea Democratic People's Republic of. Micronesia Federated States of. Papua Niugini Papua New Guinea. Philippines, Pilipinas Philippines.

Solomon Aelan Solomon Islands. Taiwan, Province of China. Turkmen Turkmenistan. Vanuatu Vanuatu. Savage A TD Cutmaster ESAB Prime.

Secondly as with all torches, the flame does not fully consume the gas or in this case the liquid fuel which tended to rise to the surface with the resulting pollution of the environment. Vogel page Histoires d'un scaphandrier or the Stories of a Commercial Diver. Underwater cutting tools history Underwater cutting tools history part one. S Gladiator before sinking 2. S Gladiator during salvage 3. It seems that this idea was born more or less simultaneously in the head of two.

In a new torch made its appearance, that of the Berliner Mr. With this torch the diver could in function of the thickness mm cut a steel sheet of 1 meter between and seconds 16 A year later it is the turn of Messer Griesheim to arrive on the market with its underwater cutter.

To avoid this, the manufacturer had planned to send the oxygen through a tank of heated water. Widely used in the years for the cutting of numerous wrecks, it employment then declined sharply because despite its high performance this torch had also some serious drawbacks: Indeed the noise generated by the combustion flame was comparable to that generated by a jet and was widely exceeding decibels.

To follow: The French gas burning torches. Vogel page 13 F. Hermans page Partager cet article. Repost 0.