Self-help Mechanical Drawing: An Educational Treatise |
From inside the book
Results 1-5 of 100
Page 13
... draw , and it is generally true that no one will be appointed to that position , except temporarily , who does not possess some knowledge of the art , either " freehand " or instrumental . It is a question how far a good working ...
... draw , and it is generally true that no one will be appointed to that position , except temporarily , who does not possess some knowledge of the art , either " freehand " or instrumental . It is a question how far a good working ...
Page 16
... draw well who draw intelligently ; aptness in this , as in many other virtues , is a matter of slow growth , " here a line and there a line " -it's the proper direction , not the rate of progress , that counts in the end . There are ...
... draw well who draw intelligently ; aptness in this , as in many other virtues , is a matter of slow growth , " here a line and there a line " -it's the proper direction , not the rate of progress , that counts in the end . There are ...
Page 17
... draw a few lines in a moment to let a sudden necessity be known , is the man of the hour . All candidates for First Class Engineer's Certificates in marine service in the navy have to undergo an examination in rough drawing ; this is ...
... draw a few lines in a moment to let a sudden necessity be known , is the man of the hour . All candidates for First Class Engineer's Certificates in marine service in the navy have to undergo an examination in rough drawing ; this is ...
Page 21
... draw , but to all the same rule applies , first the elements of the art , and afterwards the more advanced study . It is not expected that all should exhibit a decided taste for drawing , for the possession of this is rather a gift of ...
... draw , but to all the same rule applies , first the elements of the art , and afterwards the more advanced study . It is not expected that all should exhibit a decided taste for drawing , for the possession of this is rather a gift of ...
Page 23
... draw gear teeth and cams , and how to design various link motions . Make up your own problems from what you see in the shop and make your drawing a means to an end and not the principal thing ; it is of little use to be able to make a ...
... draw gear teeth and cams , and how to design various link motions . Make up your own problems from what you see in the shop and make your drawing a means to an end and not the principal thing ; it is of little use to be able to make a ...
Other editions - View all
Common terms and phrases
addendum circle Area axis beam compasses bisect blade Boiler bolt called center line Circum circumference compasses curved line cylinder desc Diam diameter dimensions direction distance dividers dotted draughtsman drawing board drawn edge end view equal erased figure fingers finished free-hand front elevation gear geometry hand Hawkins illus illustration inches India ink instruments length letters Linear Perspective machine measurements mechanical drawing object oblique Office Rules outlines paper parallel lines pencil perpendicular picture plane pitch circle pitch line polygon position practice projection proportion radius represents retina right angles rods scale screw section lines Set-Square shading shaft sheet shop drawings shown in fig shows side views sketch solid space spur gear spur wheel square Steam Engine steel straight line student surface T-square tee-square thickness of tooth three views thumb tion top view triangle vanishing points vertical lines visual rays width
Popular passages
Page 238 - Every line and letter (signatures included) must be absolutely black. This direction applies to all lines, however fine, to shading, and to lines representing cut surfaces in sectional views. All lines must be clean, sharp, and solid, and they must not be too fine or crowded. Surface shading, when used, should be open.
Page 87 - POSTULATES. I. LET it be granted that a straight line may be drawn from any one point to any other point.
Page 240 - ... at the lower lefthand corner, all within the marginal line, but in no instance should they trespass upon the drawings.
Page 18 - ONE step and then another, And the longest walk is ended ; One stitch and then another, And the largest rent is mended ; One brick upon another, And the highest wall is made ; One flake upon another, And the deepest snow is laid.
Page 238 - The scale to which a drawing is made ought to be large enough to show the mechanism without crowding...
Page 95 - From a point P in this line draw the perpendicular P B to the line AB, and on P describe the circle BD, touching the lines and cutting the center line at E. From E draw EF perpendicular to the center line, cutting AB at F, and from Fig.
Page 240 - They should, if possible, measure at least one-eighth of an inch in height, so that they may bear reduction to one twenty-fourth of an inch; and they may be much larger when there is sufficient room.
Page 87 - A Proposition, is something which is either proposed to be done, or to be demonstrated, and is either a problem or a theorem.
Page 88 - AXIOMS. 1. Things which are equal to the same thing are equal to each other. 2. When equals are added to equals the wholes are equal. 3. When equals are taken from equals the remainders are equal.
Page 53 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.