## 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, &c |

### From inside the book

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**depth**of the frame be three times the**depth**of the beam , as represented at Fig . 2 , it will be about six times as strong as the beam , and about eighteen times as firm , that is , it will bend only an eighteenth part of the distance ... Page 24

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**depth**A c , of a truss to support a weight of two tons be only one foot , and AF be ten feet , the pressure in the direction of AF will be ten tons . It will be observed that when the beam is supported by oblique posts , as in Fig . 2 ... Page 70

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**depth**, and length being all reduced to the same denomination , extend from 1 to either the breadth or**depth**, and this extent will reach from the**depth**or breadth forwards to a fourth number , which will represent the superficial ... Page 71

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**depth**be the same throughout the entire length , the extent from 1 to the superficial content thus found will reach forwards from the length to the solid content . Example . - What is the solid content of a pillar 1 foot 3 inches square ... Page 93

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**depth**. The gauge point for the old wine gallon was at 17:15 , lettered W. G. , and for the old ale gallon at 18.95 , lettered A. G. These marks are consequently found upon rules constructed prior to January , 1826 . The back of the ...### Other editions - View all

### Common terms and phrases

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