Extant Mechanical and Electrical Signals
There are examples of various mechanical and electrical signals in several railway museums and the collections of some railroad enthusiasts. These include signals that were manufactured by US&S, GRS and even the Hall Signal Company. The Hall Company's dwarf variant are the rarest and are most sought after.
Read more about this topic: North American Railroad Signals
Famous quotes containing the words mechanical, electrical and/or signals:
“A man should have a farm or a mechanical craft for his culture. We must have a basis for our higher accomplishments, our delicate entertainments of poetry and philosophy, in the work of our hands.”
—Ralph Waldo Emerson (1803–1882)
“Few speeches which have produced an electrical effect on an audience can bear the colourless photography of a printed record.”
—Archibald Philip Primrose, 5th Earl Rosebery (1847–1929)
“The term preschooler signals another change in our expectations of children. While toddler refers to physical development, preschooler refers to a social and intellectual activity: going to school. That shift in emphasis is tremendously important, for it is at this age that we think of children as social creatures who can begin to solve problems.”
—Lawrence Kutner (20th century)