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The Central Ohio Transit Authority (COTA / ˈ k oʊ t ə /) is a public transit agency serving the Columbus metropolitan area, headquartered in Columbus, Ohio. It operates fixed-route buses , bus rapid transit , microtransit , and paratransit services.
W. & L.E. Gurley patented a Latitude Level on September 2, 1884. Its purpose was to "recover the Latitude of a Solar Transit, without referring to the vertical arc; and generally for setting the telescope at any desired angle in running grades, etc."
The Central Ohio Transit Authority is the regional public transit provider for greater Columbus and Central Ohio. With a service area of 1.2 million residents, COTA provides nearly 19 million passenger trips annually.
Gurley introduced the Light Mountain Transit in 1876. This example was made after 1886, when Gurley began using bent standards, and before 1908, when Gurley began using serial numbers. The label in the box, with an image of "W. & L. E. Gurley's Instrument Manufactory," was used until 1900, and suggests that the transit was made before that date.
Surveyors who carry instruments long distances, often over difficult terrain, are always concerned about weight. W. & L. E. Gurley made their first lightweight instrument—an aluminum transit—in 1876.
W. & L. E. Gurley. Description. Gurley described this as a Surveyor's Transit with two verniers to the horizontal limb. The horizontal and vertical circles are silvered, graduated every 30 minutes of arc, and read by verniers to single minutes. There is a clamp and tangent to the telescope axis.
This 1854 Engineer’s Transit was a very important evolutionary step in Gurley’s rise to dominance. W. & L.E. Gurley started business in 1852 after William and Lewis Gurley acquired all of the interests in the Phelps & Gurley firm.
