The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 52
ubdued the Fins. The Empress Catherineordered it to be removed to the city for a fomidation on which to place abronze statue of that monarch on horseback. Many inettcctual attemiitswere made for its remo\ al; but it was easily performed afterwards by intro-ducing cannon-balls for rollers between… … Figure 1 represents a contrivance for shutting doors. The power is ap-plied in the same manner as in our modern printing presses. There is a pillat each end of the apparatus : one pin is fitted to and tunis in a socket at-tached to the frame, and the other is fitUd to a similar one on the door.…
Architecture · Civil engineering · Science
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