Repository: UIHistories Project: Course Catalog - 1884-1885 [PAGE 49]

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Mechanical Art and Design.

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the instruments by which desired dimensions of product are obtained. This practice is obtained in the Mechanical Laboratory, and represents five different shops, viz.:

1—PATTERN MAKING. 2—BLACKSMITHTNG. 3—FOUNDRY WORK. 4—BENCH WORK FOR IRON. 5—MACHINE TOOL WORK FOR IRON.

In the 1st, the practice consists in planing, turning, chiseling, etc., in producing true surfaces in various forms in wood, and also in combining pieces by glue joint, etc., preliminary to correct pattern-making. Patterns are finally made from which are cast pieces in iron, brass, etc., to be worked in the subsequent shops. In the 2d, the student uses the forge and performs the various elementary operations, such as drawing, upsetting, bending, welding, etc. In the 3d, the process of moulding and casting are fully illustrated. In the 4th, there is first a course of free-hand bench work, the cold chisel and file being the only tools. After the hand and eye are sufficiently trained, fitting is begun, and the square, bevel, rule, compasses, and other auxiliary bench tools are used. Pieces are then fitted together by the file, with surfaces carefully finished. In the 5th shop the ordinary machine tools of the machine shop are used. The first practice employs these machines with their cutting tools or bits, in common operations, such as turning cylinders, discs, grooves, and fillets; boring, drilling, hand-turning, milling, planing, etc. Following this is a course of practice in fitting and finishing, in which calipers, rules, etc., are introduced, and many of the various fittings employed in machinery are produced. Previous to the shop-work, drawings of the pieces are made by the student, and the exact thing to be done is indicated ; thus mistakes are avoided and practice facilitated. The designing of such machine elements as pulleys, journal boxes, cranks, stuffing boxes, etc., cultivates a knowledge of proportion, and of its proper representation on paper. This course of elementary practice fits the student for the advanced shop practice in designing and construction of complete machines undertaken later in the course.