Self-help Mechanical Drawing: An Educational TreatiseT. Audel & Company, 1902 - 287 σελίδες |
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Αποτελέσματα 1 - 5 από τα 49.
Σελίδα 13
... pencil or instrument in hand , to illustrate by sketch or drawing , the tools to be employed , or to picture the finished product ; accordingly , throughout this work , words of explanation and the drawings will go together to aid the ...
... pencil or instrument in hand , to illustrate by sketch or drawing , the tools to be employed , or to picture the finished product ; accordingly , throughout this work , words of explanation and the drawings will go together to aid the ...
Σελίδα 15
... pencil speaks the language of every land . " In extensive iron works and metal - working establishments the designer and draughtsman is always in demand . His services are indispensable and his position is a highly responsible one . It ...
... pencil speaks the language of every land . " In extensive iron works and metal - working establishments the designer and draughtsman is always in demand . His services are indispensable and his position is a highly responsible one . It ...
Σελίδα 16
... pencil , pen , crayon , or even paint - brush ; in the second the result is attained by the use of rule , tee - square , drawing pen , etc .; this method is also denominated mechanical drawing , and suggests the title of this volume ...
... pencil , pen , crayon , or even paint - brush ; in the second the result is attained by the use of rule , tee - square , drawing pen , etc .; this method is also denominated mechanical drawing , and suggests the title of this volume ...
Σελίδα 17
... pencil , can easily make them plain ; that knowledge -- which cannot be printed or self - taught - termed the Craftsman's Art , is communicated largely by personal telling and showing , from man to man ; in drawing , this help should be ...
... pencil , can easily make them plain ; that knowledge -- which cannot be printed or self - taught - termed the Craftsman's Art , is communicated largely by personal telling and showing , from man to man ; in drawing , this help should be ...
Σελίδα 30
... pencil and paper . Very rapid drawing upon the board should not be encouraged , as it is likely not to be accurate enough ; again , the board should be entirely free from grease . Cloths , sponges or chamois skin rubbers may be used to ...
... pencil and paper . Very rapid drawing upon the board should not be encouraged , as it is likely not to be accurate enough ; again , the board should be entirely free from grease . Cloths , sponges or chamois skin rubbers may be used to ...
Άλλες εκδόσεις - Προβολή όλων
SELF-HELP MECHANICAL DRAWING A N. (Nehemiah) 1833-1928 Hawkins Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
addendum circle Area axis beam compasses bisect blackboard blade Boiler bolt breadth called center line Circum circumference compasses curved line cylinder desc Diam diameter dimensions direction distance dividers dotted draughtsman drawing board drawing offices drawn edge end view equal erased figure fingers finished free-hand front elevation gear Geometrical hand Hawkins illus illustration inches India ink instruments length letters Linear Perspective machine marked measurements mechanical drawing object oblique Office Rules outlines parallel lines pencil perpendicular picture plane pitch circle pitch line polygon position practice produced 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 three views thumb tion top view triangle vanishing points vertical lines visual rays width
Δημοφιλή αποσπάσματα
Σελίδα 234 - 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.
Σελίδα 83 - POSTULATES. I. LET it be granted that a straight line may be drawn from any one point to any other point.
Σελίδα 236 - ... at the lower lefthand corner, all within the marginal line, but in no instance should they trespass upon the drawings.
Σελίδα 234 - One inch from its edges a single marginal line is to be drawn, leaving the "sight" precisely 8 by 13 inches. Within this margin all work and signatures must be included. One of the shorter sides of the sheet is regarded as its top, and measuring...
Σελίδα 99 - The Tangent of an arc is a line touching the circle in one extremity of the arc, and continued from thence, to meet a line drawn through the center and the other extremity. Thus...
Σελίδα 14 - 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.
Σελίδα 234 - The scale to which a drawing is made ought to be large enough to show the mechanism without crowding...
Σελίδα 91 - 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.
Σελίδα 236 - 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.
Σελίδα 49 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.