AB Bygging was granted a patent for a climbing jack for heavy lifting, which was the starting point for the development of our jacks in the 2510 series. The following year, these jacks were used during the construction of the “Läkarhuset” in Solna Centrum. First, the stairwell shafts were slipformed, then the floor slabs were lifted into place by the climbing jacks. The construction procedure is known as the Youtz-Slick-method or Lift slab construction.