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Binyanei Hauma, Jerusalem

In the course of quarrying work on the foundations of Binyanei Hauma in Jerusalem when the building was being extended, ovens for firing bricks that were built, it seems, by the 10th Roman Legion that besieged the city, were discovered. Lipsker took upon itself the task of separating two ovens in their entirety from the rock and moving them to an adjacent area. The separation was executed using horizontal drilling beneath the ovens’ foundations, while leaving the drilling pipes as a stable “tray’ bearing the ovens’ weight (50 tons each). The next stage was to hydraulically raise the “trays” and separate them from the rock. Then the ovens were loaded onto trucks by cranes and transferred to an adjacent area.