Show v- v Within the last two weeks the mining department has received two splendid did models models mo mo- dels for class work One is a complete working k ng model of the new Leonard head- head frame fiame used at Butte Montana The second second second sec sec- ond is a model of a standard station set used in the larger of our western mines The Leonard model is a design of a thoroughly thoroughly thoroughly thor thor- modern structural steel of the most approved type for vertical shafts It is equipped with two automatically automatically automatically cally dumping skips two three-deck three cages for handling men and supplies one single deck accommodation cage and the necessary necessary necessary sary mechanism for effecting change from skips to cages with the greatest facility It also presents the structural steel teel receiving receiving receiving ing bin into which the skips dump and within with with- in which the skips or cages are stored when not in use All the steel in the original was carefully carefully carefully care care- fully figured for feet depth and no ex ex- cess By a scale of one-fourth one inch to one foot the model presents this feature plainly All the details of up built-up members also all details of joints are reproduced as accurately accurate accurate- ly as possible The spacing and number of rivets as aswell aswell aswell well as details of foundation work including including including ing excavations concrete and castings are faithfully shown The The collar set of timbers for the four compartment shaft is also in place The model is made of heavy manila cardboard and stands 39 inches nigh mounted on a polished oak base 31 inches by 18 inches Its costs to the University was Last Wednesday vy Mr Holt received the second model which shows the framing of regular r shaft shaft timbers with both solid and spliced wall plates overcoat sets the method by which the overcoat wall vall plate over the station is caught up arid and two station station station sta sta- tion sets The shaft collar is also shown Every stick is cut as it is in practical use and the model may be taken apart and as assembled assembled assembled as- as as desired It is held together with pins pins- hanging bolts and tie rods It is built on a scale of one inch to the foot and stands about 22 inches high with a base 22 inches by 25 inches The price of this model was 00 |