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block bolt border line bottom boundary line bow pencil bow spacers brass broken lines carefully center of figure circles clean compasses corners Cutting Lines cylinder diagonals diameter dimension lines draw arcs Draw center draw lines Draw the vertical drawing-board edge Eleva ellipses fillets flat foot free-hand lettering Front Elevation full and broken full lines heavy lines hexagon hidden lines horizontal center line horizontal lines inch Ink-work.-Draw irregular curves left-hand legend length line measure lines are drawn lines in ink lines in pencil method middle point needle-point nibs Note object paper pencil and ink pencil and pen pencil-work Pencil-work.-Center the figure Pencil-work.-Draw placed plane portion position projection lines R. L. pen radius Section on AB Section on CD shade lines SHEET Side Elevation sketch-book spaces square Standard Hatching standard lines straight lines surface cut tangent thread tint tion triangle triangular scale vertical center line vertical lines width
Popular passages
Page v - Eugineer-in-Chief of the Bureau of Steam. Engineering of the Navy Department, and the opinion given in the above letter of reply to the Hon. Mr. Crowley, made at the request of the latter, is trne to the best of his knowledge and belief.
Page 160 - Column 2 Column 3 Column 4 Column 5 Column 6 Column Column...
Page 59 - The figures for the dimensions are placed so as to be read from the bottom or right-hand side of the drawing-board.
Page 160 - STANDARD DIMENSIONS OF BOLTS AND NUTS FOR THE UNITED STATES NAVY. Diameter. Area.
Page 71 - Nuts it is found that the height of the nut is the same as the diameter of the bolt, while the height of the bolt-head is i'ess, as a rule.