henry-dropping-time-ball-1894.pdf (4.38 MB)
A new method of dropping the time ball
journal contributionposted on 2023-11-22, 10:46 authored by Robert Henry
Mr. Robert Henry, in reading a paper on " A new method of dropping the time ball," referred briefly to the existing means for letting Hobart know when it is supposed to be 1 o'clock. In his opinion, provided the arrangements were all in good working order, the present method should be effective. But to ensure absolute accuracy it was desirable that the process should be automatic as far as possible, and with this object in view he submitted a scheme for dropping the ball, and also firing the gun electrically. He described the details, and acknowledged indebtedness to Captain Parker, R.N., for the idea as to the manner for releasing the time ball.