Improvements in Winches.
Year: 1895

page_text: Date of Application, 13th Aug., 1895
Complete Specification Left, 7th May, 1896-Accepted, 20th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in Winches.
1, GEORGE LOWE ALWARD of 11 Hainton Street, Great Grimsby, in the
County of Lincoln, Fishing Vessel Owner and Commission Agent, do hereby
declare the nature of this invention to be as follows:-
My invention relates to winches and comprises the following improvements
In lieu of the single drum possessed by winches as heretofore made I provide
two or more drums mounted loosely on the driving shaft all being on the same side
of the main driving wheel or one or more being on one side of said wheel and the
other or others on the opposite side.
In combination with the said drums I provide suitable friction clutches movable
on the driving shaft and adapted to engage with the drums for the purpose of
driving the same.
In some instances the main driving shaft is made hollow and a rod or rods is
passed through and communicated with the clutch or clutches for the purpose of
moving the same in and out of gear.
The drums are provided with brakes which are preferably V shaped to hold
them stationary when required.
I sometimes provide more than one main driving wheel which may be a toothed
wheel or a friction wheel and I also sometimes use toothed or other forms of
clutches in lieu of friction clutches.
These improvements are applicable to existing winches whether driven by steam
or otherwise.
Dated this Thirteenth day of August One thousand eight hundred and ninety-
Improvements in Winches.
GEORGE LOWE ALWARD of 11 Hainton Street Great Grimsby in the County of
Lincolnshire Steam Fishing Vessel Owner do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention has for its object to improve trawl winches in use for Otter or
beam trawls, by using two or more drums for the trawl warps as a substitute for
the single drum used heretofore, thus enabling a better control of the independent
winding and unwinding of each warp to be obtained.
In carrying out my invention, where a two-drum winch is employed, the usual
winch frames, cylinders, and foundations, are made use of, the large main driving
of spur wheel is keyed on to the main shaft, with the large warping drums running
loosely and fitted with separate clutches and brakes, preferably of V shape and the
clutches of the friction type.

page_text: All the warp drums may be fitted on the same side of the main driving or spur
wheel, or one or more fitted on each side with separate brakes and clutches to each
drum.
In carrying out my invention, when I make use of four warp drums, clutches
and brakes, the drums being fitted on each side of the main driving or spur wheel,
the frames, cylinders, and foundations being made suitable for this arrangement.
By this means I am able to use & work two complete sets of trawl warps and
gear, each set being entirely independent of the other. By this means I can
dispense with the large fairleads fitted in the centre of the trawlers deck.
In combination with the said drums, I provide suitable friction or teeth clutches
moveable on the driving shaft and adapted to engage with each drum for the
purpose of driving the same.
In some instances the main driving shaft is made hollow and a rod or rods are
passed through to connect with the clutch or clutches for the purpose of moving
the same in and out of gear.
And in order that my said invention and the manner of performing the same may
be properly understood, I hereunto append two sheets of explanatory drawings, to
be hereinafter referred to, and showing my improvements applied to trawl
winches.
Figure 1, Sheet 1, is a trawl winch with main driving or spur wheel w. fixed
between the two warp drums d. d. c. c. are the clutches by which either drum d.
may be worked independently of the other, so that one may wind in, or unwind
the trawl warp whilst the other is stopped, or both may simultaneously wind in or
unwind the trawl warps. b. is the brake band attached to each drum, which may
be made either flat or V shaped. a. is a bracket with bearings supporting the
crank and second motion shafts and their pinions p. which transmit the driving
power to the main driving or spur wheel w. e. e. are the cylinders. f. f. are the
frames, with necessary bearings.
Figure 2, Sheet 1, is a trawl winch with four warp drums, d. d. d. d. with main
driving or spur wheel w. fixed centrally, with two drums on each side of it.
c. c. c. c. are four clutches by which one or more drums d., may be wound or
unwound whilst the others remain stationary, or all of the drums d. d. d. d. may be
wound or unwound simultaneously. b. b. b. b. are brake bands attached to each
drum, which may be made either flat or V shaped. a is a bracket with bearings
supporting the crank and second motion shafts and their pinions . which transmit
the driving power to the main driving or spur wheel w. e. e. are the cylinders.
f.ff.f. are frames with necessary bearings.
Figure 3, Sheet 2, shews an arrangement of winch with two drums, d. d. both
fixed at the same side of main driving or spur wheel w. This arrangement of
winch bas all necessary clutches, brakes, frames, and cylinders, which are lettered
respectively for the various parts similar to Figure 1 and Figure 2.
Figure 4, Sheet 2, is an arrangement of a hollow main driving shaft with
friction or other clutch worked by gear passing through the hollow portion of the
shaft. k. is a hand wheel with nut, for working the shaft l, which works cross-
bar m, which in turn moves the clutch c along the shaft s.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In connection with trawl winches, especially for those working the "Otter"
trawl, constructing a winch with two or more warp drums which revolve on the
main driving shaft and are actuated by clutches, to enable either of the trawl or
* Otter boards to be drawn up or let down separately or together as may be
'necessary, and to enable the net to be more efficiently worked in rough weather,
substantially as and for the purposes herein before described.
"
2. The constructing of a winch with either two or more warp drums whereby
the trawl nets on either side of the vessel can be provided with separate wire

page_text: hawsers wound on separate drums, enabling the trawl gear to be worked throughout
in duplicate, substantially as and for the purposes herein before described.
3. The application of four warp drums whereby the trawl warps for working
either the starboard or port trawl can be wound on the drums nearest to that side
of the ship, and the warps lead direct aft on each side without having to lead first
forward and then around a fairlead revolving bollard aft again, as with winches
used heretofore, substantially as and for the purposes herein before described.
4. The application of extra warp drums whereby the strain on the wire warps is
reduced, the wear and tear is lessened and time saved in working the fishing gear,
substantially as and for the purposes hereinbefore described.
5. The application of four warp drums each supplied with separate brakes and
clutches, each working separately and independently of the other, and all capable
of being worked simultaneously as may be desired, whereby the trawls can be
hauled in and let out faster and with less strain than heretofore, substantially as
and for the purposes hereinbefore described.
6. The combination of the parts constituting improved trawl winches, substantially
as and for the purposes herein before described.
Dated this Seventh day of May 1896
G. L. ALWARD.