The masterpieces of the Centennial International Exhibition\ : illustrated (1876)
Centennial Exhibition (1876 : Philadelphia, Pa.), Shinn, Earl, 1838-1886, Smith, Walter, 1836-1886, Wilson, Joseph M · Philadelphia : Gebbie & Barrie · leaf 465
MECHANICS AND SCIENCE. 249 are so arranged that they commence to open their ports when the eccentric is producing its most rapid movement, and by means of the wrist-plate connec- … tion the speed of the opening is kept at a uniform rate, the declining move- ment of the eccentric towards the end of the throw being compensated for by
Centennial Exhibition (1876 : Philadelphia, Pa.) · Centennial Exhibition · Art · Decorative arts · Machinery
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![An illustration from The Cabinet Of The Arts: being a New and Universal Drawing Book, Forming A Complete System of Drawing, Painting in all its Branches, Etching, Engraving, Perspective, Projection, & Surveying ... Containing The Whole Theory And Practice Of The Fine Arts In General, ... Illustrated With One Hundred & Thirty Elegant Engravings [from Drawings by Various Masters] (1821)](https://img.insideoutlibrary.com/img/200/heidelberg-dougall1821bd2-101-1.webp)