Gazette Of The United States, & Philadelphia Daily Advertiser

NEW YORK June 7.

It affords us pleasure to give publicity to every new discovery, particularly when it bids fair to become of great utility--The following was handed for publication by one of the Mr. Goulds.

A new Sea Log has lately been invented by messrs. Chester and Calvin Gould, for which they have received letters patent--The principles of it are as follows-- to wit:

"A wheel of copper, about 9 inches in length, and 6 inches in diameter, with a joint or screw in the middle of the axis, in order to set the vanes in an angular position with the axis, as it is to run endways through the water. The wheel will consist of 6 leaves or vanes, then will the motion of the wheel be regulated according to the quantity of angle contained betwixt the ends of the vanes and the parallel of the axis. The same wheel may be made to run from 20 to 40 feet at one revolution, but 33 feet is considered the most proper distance. This wheel is hung in the centre of a copper cylinder, so that it can turn at liberty. To this wheel a combination of small brass wheels are connected the 4th of which will move a hand round a graduated circle once in 100 miles, and the 5th once in 2000 miles; so that the distance is shown by a inspection of the hands. The whole of the machine being made of copper and brass, will weigh from 6 to 8 pounds. It may run any convenient distance under water, according to the length of the rope by which it is towed, as from 5 to 20 feet, which will effectually remedy any errors arising from the heave of the sea; and the cylinder will guard it against cross currents. It will have to be brought in as often as the course of vessels is varied for inspection. If the vessel sails fast or slow, it notices the distance accordingly, and never wants winding up. It has been tried from Philadelphia to this place, and performed with great accuracy, as was certified by the Captain and Mate.

"The above described machine is not at all liable to get out of order, and being well made, will last several years without repairing."

Any person desirous of seeing the above machine, may be gratified by calling at the house of Mr. Michael Stagg, Murray-street, north-west corner of College-Green.

THESE may certify, that we have had Mess. Chester and Calvin Gould's New Invented Sea Log with our vessel from Philadelphia to New-York, observed its motion in rough and smooth water, and under swift and slow-motion, and found it to perform with great accuracy, under every circumstance which attended it in the passage.

JAMES MARBLE,
EPHRAIM MARBLE,
Captain and Mate.