Instrument for calculating the inclination style of a sundial

摘要

1.Instrumento for calculating the inclination style sundial, essentially characterized by the fact consist of a vertical rectangular plate, divided longitudinally by a plumb line, in two zones and provided on said plumb line, into two zones and provided in said plumb line of a vertical longitudinal opening whose sides is indicated scale terrestrial parallel and in the bottom of it, a vertical bracket having a holder holding a granulate semicircle horizontally and simultaneously acts as a guide to a plumb line that held by one end on top of the said hanging plumb line by the weight of a weight supported by that passing through it. 2.Instrumento for calculating tilt style of a sundial.