The tinsmith's helper and pattern book, with useful rules, diagrams and tables by Vosburgh H. K

Author:Vosburgh, H. K
Language: eng
Format: epub, pdf
Tags: Tinsmithing
Publisher: New York city, David Williams company
Published: 1901-03-25T05:00:00+00:00

Epitome of Mensuration. ^k

OF SPHERES.

To Fiud the Convex Surfaee of a Spliere or (;lobe.

Rule. — Multiply tJie diameter of the spJiere by its eir-cumferenee and the product is its surface: or.

Multiply the square of the diameter by ^.1416: the product is the surface.

What is the convex surface of a glohe 6j^ feet in diameter ?

6.5 X 3-1416 X 6.5 = 13273 square feet; or, 6.5= =r 42.25 X 3-1416= 132.73 square feet, the convex surface.

MENSURATION OF SOLIDS AND CAPACFriES OF BODIES.

To Find the Solidity or Capaolty of Any Fl^nreH In the Cubloal Form.

Rule. — Multiply the length of any one side by its breadth and by the depth or distance to its opf>osite side, and the product is the solidity in equal terms of measurement.

Example. —The side of a cube is 20 inches : what is its

soHdity?

20 X 20X 20 = 8000 cubic inches, or 4.62^/) cuhk

feet, nearly.

A rectangular tank is in length 6 feet, in breadth 4' 2 feet and its depth 3 feet; required its capacity in cubic feet; also its capacity in United States standard gallons.

6X4-5X3 = 81 cubic feet; 81 X 1728 = 139.968 -f-231 = 605.92 gallons.

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