Topographic mira with telescopic ensamble. (Machine-translation by Google Translate, not legally binding)

摘要

Topographic look with telescopic assembly characterized by the fact of consisting of two or more bodies, of suitable sizes to adjust and slide telescopically into each other, all of them being flattened, presenting on their respective front faces the configurations for housing the readings or scales, and carrying each of the bodies to be housed in another exterior to a mounting of fastener means, elastically forced outwards, to lean against the respective grooves of glide and glide provided on the inside of the sides of each body that has to house another interior, each of these last bodies presenting a pair of holes in each side, each hole close to the corresponding end, against which, by elastic expansion, said fixing means act, either to hold the elements introduced in others, either to hold them in telescopically extended position, in addition, simply by also elastically acting against the retaining means remove the inner bodies, completely unplugging the assembly, to manipulate the bodies separately either as independent sights, either for cleaning purposes or the like. (Machine-translation by Google Translate, not legally binding)