Self-help Mechanical Drawing: An Educational TreatiseT. Audel & Company, 1902 - 287 σελίδες |
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Αποτελέσματα 1 - 5 από τα 32.
Σελίδα 23
... 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 nice ...
... 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 nice ...
Σελίδα 24
... GEARS , 209-216 DRAWING . MATERIALS AND INSTRUMENTS , 101-134 WORKING DRAWINGS 219-227 MECHANICAL DRAWING , 135-188 READING WORKING DRAWINGS , 228-230 PENCILING , 139-147 PROJECTION , 148-164 PATENT OFFICE RULES FOR DRAWINGS , USEFUL ...
... GEARS , 209-216 DRAWING . MATERIALS AND INSTRUMENTS , 101-134 WORKING DRAWINGS 219-227 MECHANICAL DRAWING , 135-188 READING WORKING DRAWINGS , 228-230 PENCILING , 139-147 PROJECTION , 148-164 PATENT OFFICE RULES FOR DRAWINGS , USEFUL ...
Σελίδα 162
... gear wheel , the lines without the teeth as now completed being deemed sufficient , giving all particulars ; however , to prevent the error of mistaking the circles it is well to represent one or two teeth on the drawing . In the ...
... gear wheel , the lines without the teeth as now completed being deemed sufficient , giving all particulars ; however , to prevent the error of mistaking the circles it is well to represent one or two teeth on the drawing . In the ...
Σελίδα 183
... gear . It would be impossible to convey the same ideas by ordinary plan or elevation drawing ; all the objects on the same page are more clearly represented by the use of section lines or cross - hatching . Fig . 259 . Sectioning is ...
... gear . It would be impossible to convey the same ideas by ordinary plan or elevation drawing ; all the objects on the same page are more clearly represented by the use of section lines or cross - hatching . Fig . 259 . Sectioning is ...
Σελίδα 195
... necessary in some cases . A card index with cross references and written by someone who knew what to do is an essential part of the system . A gear is primarily a toothed wheel ; gearing is Hawkins ' Mechanical Drawing . 195.
... necessary in some cases . A card index with cross references and written by someone who knew what to do is an essential part of the system . A gear is primarily a toothed wheel ; gearing is Hawkins ' Mechanical Drawing . 195.
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.