Abstract: A method by which an elastomer is applied to a model (1) with relief marks to be reproduced. The purpose of the elastomer once set is to form a mold membrane (14) and incorporate within its own material the shape of the marks on the model. The mold membrane is then separated from the model and filled with a setting material, and the mold membrane is applied to a support in order to transfer the marks after preliminary pasting.

Abstract: A device for a vertically displaceable installation support comprising a profile such as a pole, having an internal passage for electric conductors and for carriage entrainment means; a slide rail fixed alongside the profile; a pole head fixed with adjusting means relative to the slide rail at the top of the profile; a movable carriage; a mobile locking, stabilizing and unlocking system fixed to the carriage and corresponding stationary parts on the pole head; electric connections comprising male elements on the carriage and female ones on the pole head; a position and operation monitoring flag on the pole head, and a support for the installation such as a lighting bar. The carriage is slidingly mounted on the slide rail.A spring operated emergency brake may be fitted on the carriage to slow it down and lock it on the slide rail should the entrainment means break or unduly loosen.