Improvements in Windlasses.
Year: 1894

page_text: Date of Application, July, 1034
Complete Specification Left, 20th Mar. 1895-Accepted, 15th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Windlasses.
I JOHN BENNETT of 14 South Oak Street Burton, on Trent retired
Schoolmaster do hereby declare the nature of this invention to be as follows :—
My improvement consists, in adding to the barrel of a windlass a screw portion
for the purpose of enabling it to convey or transfer from one end to the other, that
which it raises. thus providing a means by which vessels or the like may be loaded
or unloaded directly into or from any floor of a warehouse entirely by mechanical
means.
Over the screw. portion works the female screw, which is attached, to wheels
running upon part of the frame in which the windlass works. To this is attached
(a) a grid for supporting the weight raised. It opens, to receive the weight when
drawn up and then closes. (b) A. break to prevent overwinding. (c) A moveable
portion of the female screw. which by the action of the cord sets it in motion.
Under the cord is the cord regulator to prevent the coils from overlapping. To
the cord are added three pieces for different purposes.
(1) For conveying forward.
(2) For conveying back.
121 vin
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I. JOHN BENNETT of 14 South Oak Street Burton on Trent in the County of
Stafford retired Schoolmaster 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 :-
My improvements consist in adding to the barrel, of a windlass a screw. portion
for the purpose of enabling it to convey or transfer from one end to the other that
which it raises or which it is desired to lower at a given point and thus provide a
means by which vessels or the like may be loaded or unloaded directly. into or
from any floor of a warehouse or the like entirely by mechanical means.
For my purpose I make the barrel of any desired length and enclose it in a
frame of the same length in the ends of which it revolves. This frame is elevated
to the height required and supported on poles or otherwise if required.
The windlass may be worked in any of the usual ways, by manual power at the
axles of the shaft at either end, or by steam or other power acting inside the end
or outside either end if the axles are suitably extended.
The screw portion of the windlass barrel is provided with a female screw which
is fixed to wheels and is the means by which the conveying or transferring is
done.
The accompanying drawings will enable my invention to be better understood.

page_text: A. B. C. 'D. Fig. 1.Trepresents" a portion of the frame in which the windlass-
barrel revolves.
E. G. F. Fig. II. is the barrel of which E G is for conveying and G F for
winding.
H is the female screw or conveyer fixed to wheels which run upon A D & B C.
The part of E G within H' has the thread removed and revolves freely.
Hhas attached to it;
(1.) A grid I, the two central bars of which are made to open from the under
side and close by the balance weights which 'swing below. For this purpose
these two bars are each set in a separate frame as shewn in Fig. V. The central
bar a is turned round at the outer end so as to present no obstruction to the
passing in of the cord; the opposite bar 6 passes through the weights and is always
below the grid. The plates attached to the ends of the bars are bored about their
centres to allow the next bar C of the grid to pass through. On this bar C the
frame pivots. When the central bar a is thrown 'up the weights are drawn forward
"and upon the pressure' being removed 'they swing back again drawing 'the' frame
With them.
(2) A brake' K with projecting arms and working a connection L situate at the
back of H. The brake is made to slide up and down on rods as shewn, Fig. III.
(3.) "A detached portion L of the female screw or conveyer H'suspended at the
back, Figs. II, IV, VI. 'Fig. VI shews L on the reverse side and also
the connection between K and L. The bar g, which is cranked 'at'both ends
passes through H from front to back. The front crank k joins K by the connecting
rody and d similarly connects with L. 'When the brake K is raised it rocks the
arm and pivot and consequently 'the bar g. This pulling the link d rocks
lever d' piroted at and this lever being connected with the nut L throws it into
gear with the worm. When thus placed L and H become one, and the thread,
which previously revolved freely just outside H is placed inside 'L'H. 'Upon the
screw revolving the thread, guided by, and acted upon by L'enters' H, and the
whole L H is drawn forward. There being then no further use for L it drops as
the cord descends.
M, N, O are pieces used for supporting the load upon the grid 1. M is used
when the load is required to be conveyed forward from G to E and it takes the
cord with it. O is for use when the load is required to be conveyed in the opposite
direction from E to G. In O a T-piece passes through the centre bit; the arms
of two swing ladders, extended at the base are fixed upon the second bars of the
open grid. Upon the barrel revolving and O lifting the ladders collapse and fall.
into the positions shewn by the dotted lines which enables O to pass down through
the open grid. N is similar to M but when it rests upon the grid the hook relieved
of the weight falls backward and releases the cord which descends while H with
the load is moving on. Upon omitting to attach M or N the conveying portion
ceases to act.
R, Fig. I. is the cord regulator. It consists of a screw and a nut Z extended so
as to rest and slide upon runners on either side and parallel to screw and having at
one end a hole for the cord to pass through. Its position is directly under the
barrel at GF and a cogwheel fixed upon it is worked by the cogwheel attached
to F. As the barrel G F revolves Z travelling backwards or forwards at exactly
the same rate keeps the cord always moving, thus preventing any overlapping of
the coils. R also prevents overwinding when M or N are not attached for as Z
comes to the end of the screw about the time the cord ends and can go no farther
the cogwheels and interlocking stop the barrel. By adjustment R may be
made to stop the cord at any time.
The action of the whole windlass is as follows;-
The weight to be lifted being underneath 'M it is hooked on to it and the
windlass rotated so as to raise it. When M reaches and passes through the grid
this latter closes beneath it and supports the load and M, having by means of K
forced L up so as to engage the screw thread and the rotation of the axle being

page_text: reversed takes the load along with it while, if N be substituted for M, the rope
automatically disengages itself from N and drops down for a fresh load. When
the original load is removed at the other end, the rotation is again reversed and
simultaneously brings back the part H and winds up a new load.
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. The lifting and carrying windlass arranged and operating substantially as
shewn and described.
2. In a windlass for lifting and carrying weights the combined winding and
screw barrel substantially as shewn and described.
3. In a windlass for lifting and carrying weights the devices for engaging and
disengaging consisting of the grids I, the brake K, the part L, and the suspended
pieces M N & O substantially as shewn and described.
4. In a windlass the combination of a winding and screw barrel supported and
revoluble in a frame a traverser or conveyer H having a screw portion L, an
engaging and disengaging part consisting of the grids, the brake, the connecting
rods and cranks the pieces M, N, O and the cord regulator, substantially as
shewn and described.
5. The application and construction of the cord regulator substantially as
described for this and similar purposes.
Dated this 19th day of March 1895.