IMPROVEMENTS IN HAY AND STRAW ELEVATORS to be as follows
Year: 1884

page_text: We EDWIN ROBERTS and HENRY ROBERTS of the Deanshanger Iron Works,
in the County of Northampton, Engineers and Ironfounders; do hereby declare
the nature of our Invention for "IMPROVEMENTS IN HAY AND STRAW ELEVATORS
to be as follows:→
•
"
The object of this Invention is to prevent the drum or winding gear of an
elevator from being over-wound thereby avoiding breakage of the machine and
danger to the attendants when folding, unfolding and raising the elevator, which
is attained, in the following manner.
.
I place upon the pole wheel of the elevator, two catches or lugs, also fix upon
the first motion shaft upon which the handle is placed a disc wheel having two
catches reverse to each other.
I also place a suitable double-ended catch resting on a spring which latter is
adjusted to keep the catch in a normal and central position, and consequently clear
of the projections on the drum previously referred to excepting when required
otherwise.
Now in the operation of folding, unfolding and raising the elevator our Invention
acts in the following manner;
In the act of folding, when the handle has been turned sufficiently in the one
direction, the lug cast on the periphery of the pole-wheel comes in contact with
the double ended catch pressing it down and causing the long end to rise and
engage itself with the catch, or with one of the two catches formed on the inner
part of the disc-wheel-when the handle is turned in the other direction' sufficient
to unfold the elevator, the same double ended catch is then acted upon by two
other lugs or projections cast the reverse way upon the pole and disc wheels
respectively, and thus prevents the handle being turned further in that direction.
Dated this 7th day of May 1884

page_text: "
We, EDWIN ROBERTS and HENRY ROBERTS of the Deanshanger Iron Works
in the County of Northampton, Engineers and Ironfounders do hereby declare
the nature of our Invention for IMPROVEMENTS IN HAY AND STRAW ELEVATORS,
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
The object of this Invention is to prevent the drum or winding gear of an
elevator from being over-wound, thereby avoiding breakage of the machine and
danger to the attendants, when folding, unfolding and raising the elevator which
is attained in the following manner.
I place upon the pole-wheel of the elevator two catches or lugs, also fix upon
the first motion shaft upon which the handle is placed, a disc wheel having two
catches or projections reverse to each other.
I also place a suitable double ended catch or lever resting on a spring which
latter is adjusted to keep the lever in a normal and central position and
consequently clear of the disc and pole-wheels and the projections or lugs upon
the same excepting when required.
Now in the operation of folding unfolding and raising the elevator our Invention..
acts in the following manner; in the case of folding, when the handle has been
turned sufficiently in the one direction, the lug on the periphery of the polewheel
comes in contact with the double ended catch, pressing it down and causing the
long end to rise and engage itself with the catch, or with one of the two catches
formed on the inner part of the disc wheel; when the handle is turned in the
other direction sufficient to unfold the elevator, the same double ended catch is
then acted upon by two other lugs or projections fixed the reversed way upon the
pole and disc wheel respectively, and thus prevents the handle being turned further
in that direction.
And in order that our said Invention may be properly understood and the
Imode whereby we propose to carry the same into effect, we will now proceed to
describe the accompanying Drawings.
The improved apparatus forming the subject of this Invention is shewn in detail
in Fig. I; the application of the same to a hay and straw elevator when opened
and closed being illustrated in Figs.. 2 and 3.
In Fig. I A is the pole-wheel so called because the pole 1, L, by which the
elevator o, o, is folded, unfolded, and raised and operated generally, is attached to
this wheel. B and C are two projections cast on the periphery or rim of the
wheel A. D represents a disc-wheel placed on the first motion shaft K and on
which the handle K' Figs. II and III, for working the mechanism is also placed.
E and F are two other projections or lugs placed in reverse directions on the
wheel D. G is a double ended catch or lever turning on the centre G' and partially.
resting upon and controlled by the spring H.
The train of wheels by which the pole wheel is turned by means of the
handle K is shewn marked K L M N O and P respectively, and need no further
description.
In Figs. II and III m m are the two rods attached to the pole-wheel at n, n,
by means of the nuts as shewn; o, o, is the framework of the elevator carrying the
elevator chain &c. the work performed by the improved apparatus, the subject of
this Invention.being to unfold, fold and raise this wooden framework, and to do it
without overwinding;-in Figs. II and III the chains and prongs by which the
hay and straw is elevated and carried to its required destination are shown ab
P2, P. 22.

page_text: Having now described the various details of our Invention and its application
by reference to the Drawings, we will now more particularly describe the manner
in which the improved winding gear is used or put in operation and also how the
desired object is attained, viz. "the prevention of over winding."
The object of the Invention being to prevent the drum or winding gear of
an elevator from being over-wound, thereby avoiding breakage and damage to
operators when folding, unfolding and raising the elevator, which is attained in
the following manner.
We place upon the pole-wheel marked A two projections or lugs marked B
and C respectively, also fix upon the first motion shaft K upon which the
handle K¹ is placed, a disc-wheel marked D also having two projections E and F,
reverse to each other.
We also place a suitable double-ended lever or catch marked G between the
pole-wheel A, and the disc wheel D, pivotting on the centre G₁, and resting upon
the spring marked H, which is adjusted in the manner shewn.
Now in the operation of folding, unfolding, and raising the elevator our invention
operates thus.
In folding. When the handle K¹ has been turned sufficiently in the one.
direction, the lug marked C on the pole-wheel A comes in contact with the
double-ended lever or catch G, pressing it down, causing the long end to rise
and engage itself with the catch marked E, one of the two projections on the
disc-wheel D.
When the handle is turned in the contrary direction. sufficient to unfold the
elevator o, o, the lug marked B comes in contact with the lever G compressing
the spring H, bringing one end of the lever or catch G in contact with the
projection marked F, and thus prevents the handle K¹ from being turned further
in that direction.
By means of the screw and nuts at the end of the spring H, the same is adjusted
so as to keep the double-ended lever G clear, and out of contact with either of
the two wheels marked A and D, excepting when engaged by either of the two
lugs B and C.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is;-
1st. Preventing overwinding in hay and straw elevators by means of certain
lugs or projections, on both the pole and disc wheels respectively, these said lugs
operating in conjunction with a catch or lever essentially as herein described, and
as shewn in our detail Drawing Fig. I.
.
2ndly. The form of the double ended lever herein-before described, which
operates upon both sets of lugs or projections, and also the method of controlling
the action of the same by means of a spring as shewn.
Dated this Twenty-ninth day of May, one thousand eight hundred and eighty