Process and apparatus for lubricating glass mold castings

Apparatus for lubricating a split-mold mold casting in which the mold includes two half-molds each having an end and defining a half-casting, the apparatus comprising, in combination:

• means for moving the half-molds apart to an open position;
• means including a pair of head members respectively mounted at fixed locations adjacent each open half-mold and beyond said end thereof for directing a jet of gas toward the open half-mold along an axis just about parallel to the half-casting;
• and
• means for heating the jets of gas to form a powdery carbonaceous lubricating material.

In glass bottle producing apparatus of the type having at least one split rough-forming mold including two half-molds each having a longitudinal axis and an end, a finishing mold, and means for transferring rough forms from the rough-forming mold to the finishing mold, a lubricating device for the rough-forming mold which comprises, in combination:

• means for moving the half-molds of the rough forming mold apart to an open position;
• means including a pair of head members respectively mounted at fixed locations adjacent each open half-mold of the rough forming mold and beyond said end thereof and in a position for directing a jet of gas toward said open half-mold along an axis just about coincident with the longitudinal axis of the half-mold;
• and
• means for igniting the jets of gas to form a powdery carbonaceous carbonated lubricating material.

A process for lubricating a split-mold casting in which the split mold comprises two half-molds movable between open and closed positions, each of the half-molds having a half-mold axis and the half-molds defining a central axis when in their closed positions, the process comprising, in combination:

• moving said half-molds apart to their open positions;
• forming a first jet of combustible gas at a first fixed location with respect to said central axis, said first fixed location being spaced from one of the open half-molds and in substantial alignment with the half-mold axis of said one half-mold when in its open position;
• forming a second jet of combustible gas at a second fixed location with respect to said central axis, said second fixed location being spaced from the other open half-mold and in substantial alignment with the half-mold axis of said other half-mold when in its open position;
• igniting the jets of gas to form a carbonaceous lubricating material;
• directing the carbonaceous lubricating material in separate streams from the respective fixed locations to the corresponding half-molds to lubricate the same;
• and
• thereafter moving said half-molds toward each other to their closed positions.

A process for lubricating a split-mold casting in which the split mold comprises two half-molds movable between open and closed positions, each of the movable half-molds having a half-mold axis the half-molds and defining a central axis when in their closed positions, the process comprising, in combination:

• moving said half-molds apart to their open positions;
• forming a first jet of combustible gas and a first flame at a first fixed location with respect to said central axis, said first fixed location being spaced from one of the open half-molds and in substantial alignment with the half-mold axis of said one half-mold when in its open position;
• forming a second jet of combustible gas and a second flame at a second fixed location with respect to said central axis, said second fixed location being spaced from the other open half-mold and in substantial alignment with the half-mold axis of said other half-mold when in its open position;
• said first and second flames separately heating the jets of gas to form separate parallel streams of carbonaceous lubricating material;
• directing the separate streams from the respective fixed locations to the corresponding half-molds to lubricate the same;
• and
• thereafter moving said half-molds toward each other to their closed positions.