A NEW OR IMPROVED WINCH OR WINDLASS FOR HAULING IN FISHING NETS, ROPES, OR LINES, AND HEAVING WEIGHTS ON BOARD OF FISHING BOATS OR OTHER VESSELS
Year: 1876

page_text: PROVISIONAL SPECIFICATION left by Robert Donaldson and James Taylor
at the Office of the Commissioners of Patents on the 26th September 1876.
ROBERT DONALDSON and JAMES TAYLOR, both of Glasgow, in the County of
Lanark, North Britain, Engineers. "A NEW OR IMPROVED WINCH OR WINDLASS
FOR HAULING IN FISHING NETS, ROPES, OR LINES, AND HEAVING WEIGHTS ON
BOARD OF FISHING BOATS OR OTHER VESSELS."
This said Invention consists of a new or improved construction of portable
windlass for hauling in nets, lines, or ropes; also suitable for paying out these, or
heaving weights, masts, or herring boxes on board of fishing boats or other vessels,
all in a more efficient manner than hitherto, and capable of being worked in stormy
weather for preventing the loss of fishing nets or lines. And the new or improved
construction of this machine consists all as follows:-A basement plate is secured
to the top of a strong cross or longitudinal fixed beam near the stern of the boat,
having a strong stud projecting up from the centre of the plate for the frame to
swivel on by a socket or boss, with a strong nut or other equivalent above, having
preferably one vertical cheek or side frame cast or formed in one with the boss, and
a corresponding cheek bolted thereto behind the other by a flange at the base, so as
to carry the journal bearings of five horizontal spindles of the winding pulleys, and
gearing in the form of a small low set winch, having a casing of thin sheet metal
passing all round or over the said cheeks, covering in the toothed wheels to prevent
catching or injury to the tackle or accident to the men. The whole frame and
gearing swivel on the said vertical stud, having the large or main winding grooved
pulley in front keyed on the overhanging end of the main central spindle, and a
fly wheel keyed on the other or back end of the same spindle, which fly wheel may
have the actuating crank handle fixed in it when single power only is required.
On each side of and considerably below the large grooved pulley, a small grooved
pulley is carried on the front end of a stationary or revolving spindle, so that the
edge line of the net or rope to be hauled in is passed under the first of these small
pulleys, and up to and round the greater part of the large pulley, thence under the
second small pulley, so as to be coiled within the boat. And for giving greater
power two cross spindles are arranged to revolve and slide in bearings in the side
frames above the spindles of the small grooved pulleys, with pinions on them
between the frames gearing into the spur wheel of the large pulley, which is as three
D..
037

page_text: to one of one of the pinions, and two to one of the other, each spindle being
capable of sliding in their bearings between the frames to put either of the pinions
into gear desired to be used for actuating the central wheel and spindle, the winch
or winding handle being shipped on to the spindle.of the pinion in action for the
time being; a pawl or other equivalent being used for keeping the pinions out of
gear when not in use, thus giving the effect of a three power windlass. The whole
winding mechanism swivels and adjusts itself on the base stud, the boss having a
pinching screw to fix it thereto at any time and in any position desired.
In some cases, as for the heavier class of windlasses, one or more rollers or other
equivalent might be carried on the under side of the frame, and roll on the upper
surface of a ring on the foundation plate, to carry the weight and lessen the friction
in turning on the centre stud.