The American House Carpenters' and Joiners' Assistant: Being a New and Easy System of Lines, Founded on Geometrical Principles, for Cutting Every Description of Joints, and for Framing the Most Difficult Roofs; to which is Added a Complete Treatise on Mathematical Instruments. Also, Mensuration, Tables of the Weights and Cohesive Strength of the Several Materials Used in the Construction of Buildings, &cD. Burgess, 1853 - 136 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 11.
Σελίδα 53
... vernier scales . - Simply divided Scales . Simply divided scales consist of any extent of equal divi- sions , which are numbered 1 , 2 , 3 , & c . , beginning from the second division on the left hand . The first of these primary ...
... vernier scales . - Simply divided Scales . Simply divided scales consist of any extent of equal divi- sions , which are numbered 1 , 2 , 3 , & c . , beginning from the second division on the left hand . The first of these primary ...
Σελίδα 55
... Vernier Scales . - The nature of these scales will be understood from their construc- tion . To construct a vernier scale , which shall enable us to take off a number to three places of figures : divide all the primary divisions into ...
... Vernier Scales . - The nature of these scales will be understood from their construc- tion . To construct a vernier scale , which shall enable us to take off a number to three places of figures : divide all the primary divisions into ...
Σελίδα 56
... vernier scale . Increase the first figure by one ; subtract the third figure from the second , borrowing one from the first increased figure , if necessary , and extend the compasses from the division upon the vernier scale , indicated ...
... vernier scale . Increase the first figure by one ; subtract the third figure from the second , borrowing one from the first increased figure , if necessary , and extend the compasses from the division upon the vernier scale , indicated ...
Σελίδα 57
... vernier scale may advantageously be laid down paper upon which the plot is to be made . A vernier scale is preferable to a diagonal scale , because in the latter it is extremely difficult to draw the diagonals with accuracy , and we ...
... vernier scale may advantageously be laid down paper upon which the plot is to be made . A vernier scale is preferable to a diagonal scale , because in the latter it is extremely difficult to draw the diagonals with accuracy , and we ...
Σελίδα 67
... vernier scale , or of the beam compasses , by which it is to be divided , bisect it , and figure it 1 at the commencement on the left hand , 1 again in the middle , and 10 at the end . The half line , then , is taken for unity , or the ...
... vernier scale , or of the beam compasses , by which it is to be divided , bisect it , and figure it 1 at the commencement on the left hand , 1 again in the middle , and 10 at the end . The half line , then , is taken for unity , or the ...
Άλλες εκδόσεις - Προβολή όλων
The American House Carpenters' and Joiners' Assistant Lucius D. Gould Περιορισμένη προεπισκόπηση - 2023 |
Συχνά εμφανιζόμενοι όροι και φράσεις
26 Spruce St angle rib beam beam compasses bevel breadth Cast Iron circle circumference colatitude constructed copy cube root cubic feet depth describe the arc diagonal diameter divided draw the lines edge Eighths elevation ellipsis extent will reach Figure floor frame girders given line given number gnomonic projection half hypothenuse inches instrument Invented and Drawn jack-rafters Join joists length in feet limb line of chords line of numbers line of sines Lith 26 Spruce meridian method of finding multiplied nail number of degrees number of equal pencil perpendicular plane Plate polygon primary divisions proportional purlin quadrant quarter girt quotient radius regular polygons represent right angles right line roof rule Rule.-Multiply screw secants sector Shows the method slider sliding soffit square root straight line stroke subdivision tangents thickness transverse distance triangle truss vernier scale weight