IMPROVEMENTS. IN WATCHES AND POCKET CHRONOMETERS
Year: 1862

page_text: PROVISIONAL SPECIFICATION left by Henry Robottom and Richard
Underwood at the Office of the Commissioners of Patents, with their
Petition, on the 30th January 1862.
We, HENRY ROBOTTOM and RICHARD UNDERWOOD, both of 31, Robert
Street, Hoxton New Town, in the County of Middlesex, Watch Manufac
turers, do hereby declare the nature of the said Invention for "IMPROVEMENTS.
IN WATCHES AND POCKET CHRONOMETERS," to be as follows:-
The object of the improvements is to arrange parts of watches and pocket
chronometers so that they may be "wound up" and the hands "set" without:
requiring a key or other separate instrument for the purpose. Through the
pendant we pass a spindle, upon the outer end of which is affixed a milled head
or other means to faciltate its being turned; at the other end is affixed a bevilled
pinion which takes into to drive another bevilled pinion, the axis of which is
carried by one end of a spring which also carries a bearing for the first pinion.
When motion is given to the spindle by its head the bevilled pinion thereon gives
motion to that into which it gears. This second pinion takes into the teeth of
another wheel, and by friction at contact therewith is, in its rotation, drawn
into contact also with the teeth of a wheel driving the fusee. This latter
wheel is held by spring adjustment to its arbor so as to yield in the event of
the teeth thereof being met end to end.

page_text: Movement of the hands is obtained by bringing one of a series of wheels
into contact (by pressure or otherwise) with the driving means referred to,
such wheelwork being drawn out of gear when the required setting of the
hands has been effected by spring. For giving motion to movements without
fusees, the spring bearing the second bevilled pinion will not be required.

page_text: PROVISIONAL SPECIFICATION left by Henry Robottom and Richard
Underwood at the Office of the Commissioners of Patents, with their
Petition, on the 30th January 1862.
We, HENRY ROBOTTOM and RICHARD UNDERWOOD,. both of 31, Robert
Street, Hoxton New Town, in the County of Middlesex, Watch Manufac-
turers, do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN WATCHES AND POCKET CHRONOMETERS," to be as follows:-
The object of the improvements is to arrange parts of watches and pocket
chronometers so that they may be "wound up" and the hands "set" without
requiring a key or other separate instrument for the purpose. Through the
pendant we pass a spindle, upon the outer end of which is affixed a milled head
or other means to faciltate its being turned; at the other end is affixed a bevilled
pinion which takes into to drive another bevilled pinion, the axis of which is
carried by one end of a spring which also carries a bearing for the first pinion..
When motion is given to the spindle by its head the bevilled pinion thereon gives-
motion to that into which it gears.. This second pinion takes into the teeth of
another wheel, and by friction at contact therewith is, in its rotation, drawn
into contact also with the teeth of a wheel driving the fusee. This latter
wheel is held by spring adjustment to its arbor so as to yield in the event. of
the teeth thereof being met end to end.

page_text: Movement of the hands is obtained by bringing one of a series of wheels
into contact (by pressure or otherwise) with the driving means referred to,
such wheelwork being drawn out of gear when the required setting of the
hands has been effected by spring. For giving motion to movements without
fusees, the spring bearing the second bevilled pinion will not be required.