Measuring probe for taking a sample from a metal bath and for measuring the bath temperatures

Claim 1

A measuring probe for simultaneously taking a sample from a molten metal bath and for measuring a parameter of the bath comprising a sample container and a device for measuring a parameter of a molten metal bath each disposed on a common head piece, said head piece including a cylindrical body having a collar at one end, said body partially receiving a sample container, said head piece having its other end inserted into one end of a connecting tube, the other end of the connecting tube being secured to and closed by one end of a cylindrical plug, said plug having at least one longitudinally extending peripheral gas-vent groove, the other end of said plug having a cylindrical projection telescoped with respect to one end of an intermediate tube, said connecting tube and said intermediate tube and the plug each being surrounded by a protective tube telescoped onto said head piece and in contact with said collar, the inside diameter of said protective tube being substantially equivalent to the outside diameter of the plug and said cylindrical body, the interior of said connecting tube being vented for escape of gases to the chamber between said protective tube and said intermediate tube by way of said groove, said cylindrical body having a central bore and at least one other bore generally parallel thereto, said central bore at said one end of the body receiving a supply tube for said sample container, said additional bore being shorter than the length of said body and having a radially disposed exit port at theouter perphery of said body, said cylindrical body having a slot coextensive with said central bore and receiving said sample container, an electrical contact device supported within said intermediate tube and electrically coupled to said measuring device, and a spacer at the other end of said intermediate tube, said spacer being provided with means to vent gases from said chamber.