The Fundamentals of Mechanical Drawing |
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The Fundamentals of Mechanical Drawing (Classic Reprint) Richard Shelton Kirby No preview available - 2016 |
Common terms and phrases
auxiliary view axes block circle Circular Arc clockwise cone construction Copy the design corner cube curve cylinder describe an arc design of Pl diagonals diameter dimension line direction distance Divide draftsmen ellipse end view equilateral triangle eraser extends front view frustum given line groove H projection hexagonal prism hori horizontal line inch inclined inked line inside intersecting isometric drawing isometric projection left-hand side lower side method middle point nibs object orthographic projection pencil perpendicular perspective drawing picture plane plane of projection PLATE portion pyramid radius rectangle as oor rectangular regular hexagon revolved rhombus right angles right-hand ruling pen scale Screw threads screws second position shading side faces sides of base sides of hexagon solid space draw square square pyramid straight line straight-edge T-square tangent thick tical top view tracing cloth triangular prism true length upper base vanishing point vertical line vertical projection wide zontal
Popular passages
Page 19 - This curve is generated by a point on the circumference of a circle, as the circle rolls along a straight line. The...
Page 47 - ... the pitch are standard. On a drawing of a hexagonal head it is common to show three faces, on a drawing of a square head one face. There are many other forms of bolts, such as tap bolts, anchor bolts, drift bolts, eye bolts, carriage bolts, etc., most of which are threaded. (c) Screws. In PL 15, Fig. 4, are shown some common forms of
Page 13 - ... near the center of the line. CD is the perpendicular bisector of AB. (b) When the point is near the end of the line and near the edge of the paper, as E, choose any convenient point G, and with G as a center and GE as a radius describe an arc of more than 180°. Produce GH to intersect this arc at /. Then will JE be perpendicular to FE.
Page 7 - Although some draftsmen use the dividers for transferring distances from the scale to the drawing, this practice should be avoided by the beginner, as it tends to mar the graduations on any but a steel scale, and considerable skill is needed to produce accurate results. The dividers should not...
Page 14 - BF, will be the center of the required arc, and /£(=/Z7) will be its radius. 29. To Draw Two Tangents to a Circular Arc from a Point Outside the Arc (Fig. 9) . Given the point P and the arc whose center is at C. Connect CP and bisect CP at 0. With 0 as a center and OC (=OP) as a radius draw an arc which intersects the given arc at A and at B. Then will AP and BP be the required tangents. 30. To Draw a Circular Arc of Given Radius Tangent to a Given Straight Line and to a Given Circular Arc (Fig.
Page 22 - The length of the projection is equal to the product of the length of the line by the cosine of the angle between the line and the plane.
Page 22 - REVOLUTIONS object from III to II and then from II to I to find the required views of the given object in Space I. 256. To Find the True Length of a Line.— Fig. 525. If a line is parallel E S' V™ VLE F^F
Page 34 - ... credited with more than $600,000 for each scientific leader. In the proportion of scientific men to current income, the Institute is again near the head of the list. There are six more graduates of the Institute in the leading thousand scientific men now than in 1903. One Teacher to Every Seven Students The Bulletin of the Society for the Promotion of Engineering Education for October and November contains interesting notes on the German technical universities by Dean Shepard of the LC Smith...
Page 62 - Draw a horizontal line and a vertical line through the center of the space. Lay off a point ij" each side of the center and another the same distance directly below the center.