B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
327/54
B23K 9/00 (2006.01) B23K 9/29 (2006.01)
Patent
CA 1138941
ABSTRACT OF THE DISCLOSURE A manual torch for tig welding is disclosed which has an adjustable head which can be orientated at various angles relative to the handle. The torch includes conduits for both cooling fluid as well as the inert gas and the conduits are defined within the pivoting connection of the torch. The manual torch comprises an insulated handle, a head fastened to one side of the handle and provided with an insulated casing, with the head having a forward portion comprising a first stationary flank and a second removable flank and a rear portion to which the cooling fluid conduit and the insert gas conduit are attached. A rotatable block arranged between the first and second flanks is provided and has a recess for the flow of inert protective gas connected to the inert gas conduit. A carrier, which can be orientated, is provided bearing an electrode and supported by the block. The carrier has a circular recess provided around the electrode and connects the recess of the rotatable block. A ceramic nozzle surrounds the electrode and a pivot pin is provided on each side of the rotatable block to rotatably support it on the stationary and removable flank. This allows rotation of the rotatable block to a desired inclination angle of the electrode and the supply of electrical current thereto. An insulating ring partially surrounds the rotatable block and allows its rotation within the maximum inclination range to avoid dispersion of high frequency arc ignition currents. Such a torch reduces the dispersion of high ignition arc currents and minimizes the possibility of rupture of the conduits.
332421
Johnson Douglas S. Q.c.
Torrani Roberto
LandOfFree
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