| 摘要 |
The device according to the invention, which is particularly adapted for obtaining plumbs and heights of any masonry work A to be built, used for framing the future openings to be fixed in, of a brick building under construction, is characterised by a main straight tubular assembly 1 which is equipped with various accessories with the purpose of fitting, adjustment of the plumb and fastening of the present device onto the masonry work. The desired object is achieved using the support plate 4, the bubble (spirit) level 7 protected by two brackets 6, in case the apparatus falls, the U-shaped profiled sections 2 and 3, provided for locking the holding bar clamps C, the plastic tape 8 which is graduated metrically, and read directly, defining the desired height of the future window surrounds A to be built. <IMAGE>
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