A method for extracting glass containers contained in a tray and transferring them to a linear conveyor, wherein a series of trays, provided with a series of recesses or impressions, house a series of glass containers and are caused to move and advance at a predetermined distance from each other on a feeding plane in steps and/or continuously to be brought beneath an extraction device of the glass containers from the trays, wherein the extraction device comprises a series of extraction pincers of the single glass container arranged between each other at a first reciprocal distance (k) equal to the distance between said recesses or impressions, wherein the method provides for a step for extracting said glass containers from said trays by means of said pincers, a step for transferring all of said glass containers withdrawn by said extraction device from said trays to a position above said linear conveyor and a step for releasing all of said glass containers together on said linear conveyor; wherein the extraction device comprises wheel sectors or star segments (16, 17 and 18), caused to rotate around a common horizontal axis according to a circular path, said wheel sectors or star segments (16, 17 and 18), carrying on an outer peripheral surface formed as an arc of circumference, said series of extraction pincers of the single glass container; wherein during the extraction step said sectors are caused to rotate tangent to said trays which advance in synchronism with the rotation of the sectors and said glass containers are extracted one at a time from said trays; a head of a robot is also provided, which is provided with movement in space and which provides a series of gripping elements for the withdrawal of said glass containers carried by said sectors (16, 17 and 18) and their release on said linear conveyor, the method providing a step for withdrawing together all of said glass containers carried by said pincers of a single sector (16 or 17 or 18), by means of said withdrawing elements of said robot head, when the rotation of said single sector (16 or 17 or 18) from which the withdrawal step is effected, is stopped; a step for transferring all of said glass containers withdrawn by said robot head from said single sector to a position above said linear conveyor; a step which is effected during the transfer of said robot head wherein said glass containers carried by said withdrawing elements positioned at a first distance (k) are moved to a second distance (h), different from the first distance (k), for depositing said glass containers on said linear conveyor, wherein said gripping elements are movable and variable in position with respect to each other; wherein the extraction device comprises wheel sectors or star segments (16, 17 and 18), caused to rotate around a common horizontal axis according to a circular path, said wheel sectors or star segments (16, 17 and 18), carrying on an outer peripheral surface formed as an arc of circumference, said series of extraction pincers of the single glass container; wherein during the extraction step said sectors are caused to rotate tangent to said trays which advance in synchronism with the rotation of the sectors and said glass containers are extracted one at a time from said trays; a head of a robot is also provided, which is provided with movement in space and which provides a series of gripping elements for the withdrawal of said glass containers carried by said sectors (16, 17 and 18) and their release on said linear conveyor, the method providing a step for withdrawing together all of said glass containers carried by said pincers of a single sector (16 or 17 or 18), by means of said withdrawing elements of said robot head, when the rotation of said single sector (16 or 17 or 18) from which the withdrawal step is effected, is stopped; a step for transferring all of said glass containers withdrawn by said robot head from said single sector to a position above said linear conveyor; a step which is effected during the transfer of said robot head wherein said glass containers carried by said withdrawing elements positioned at a first distance (k) are moved to a second distance (h), different from the first distance (k), for depositing said glass containers on said linear conveyor, wherein said gripping elements are movable and variable in position with respect to each other; a step for withdrawing together all of said glass containers carried by said pincers of a single sector (16 or 17 or 18), by means of said withdrawing elements of said robot head, when the rotation of said single sector (16 or 17 or 18) from which the withdrawal step is effected, is stopped; a step for transferring all of said glass containers withdrawn by said robot head from said single sector to a position above said linear conveyor; a step which is effected during the transfer of said robot head wherein said glass containers carried by said withdrawing elements positioned at a first distance (k) are moved to a second distance (h), different from the first distance (k), for depositing said glass containers on said linear conveyor, wherein said gripping elements are movable and variable in position with respect to each other;