Improvements in or connected with Chaff Cutters.
Year: 1899

page_text: Date of Application, 5th May, 1899
Complete Specification Left, 5th Feb., 1900-Accepted, 14th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in or connected with Chaff Cutters.
I, SAMUEL BRASSINGTON BAMFORD, of the Firm of Bamford & Sons, Leighton
Iron Works, Uttoxeter, in the County of Stafford, Agricultural Engineers, do
hereby declare the nature of this invention to be as follows:-
My invention relates to safety-feed chaff cutters which have a feeding web
or endless chain working at the bottom of the feed box and receiving motion
from the lower toothed roller shaft, and also an inclined feeding web or endless
chain placed over the feed box and receiving motion from the top or rising toothed
roller shaft.
Such chaff cutters have hitherto been of a somewhat complicated nature, the
object of my invention is to simplify the construction and number of parts, and
to this end it comprises the improvements hereinafter described.
In carrying out my invention I use an endless feeding web or chain at the
bottom of the feed box, for the purpose of drawing the hay or material to be
cut, towards the toothed feed rollers, and the knives, and I also use over the top
of the feed box (near the rising toothed roller) an inclined feeding web or end-
less chain, having its lower end close to the rising toothed roller and receiving
motion from it.
As the motion of the inclined web must be in a similar direction to the rising
toothed roller, I use a chain with two sprocket wheels and I extend the rising
toothed roller shaft at its right hand end (when looking at the front of machine)
and also the shaft carrying the lower end of the inclined feeding web.
On each of the shaft ends I fix a sprocket wheel and connect these wheels
with a link chain whereby the inclined feeding web is driven by the rising
toothed roller shaft and in the same direction. I sometimes use three, spur
wheels instead of a chain and sprocket wheel.
In order to simplify the construction I attach the whole of the frame work
carrying the inclined feeding web to the back of the rising mouthpiece without
any other support whatever. A plate is fixed on each side to carry the inclined
feeding web, each side plate having at its lower end an angle bracket which is
bolted to the back of the rising mouthpiece carrying the rising toothed roller
The side plates are connected together at their opposite or highest ends with a
cross plate. I also fix a cover plate over the whole of the inclined web to pre-.
vent accidents.
The lower portion of the rising frame slides in recesses made on the inner
side of the top of the fixed side cheeks of the chaff cutter head. Bearings are
also made at the lower portion of the rising side plates, working in slots in
the fixed side cheeks of the chaff cutter heal. These bearings carry the lower
shaft or roller with projections for the inclined feeding web which receives
motion through the chain and sprocket wheels from the rising toothed roller
shaft.
At the upper end of the inclined feeding web is also a roller with projections.
The axle of this roller revolves in the rising side plates, and has an adjustable
bearing at each end for regulating the web. When the upper toothed roller
rises with the frame which carries it (to which is fixed the side plates or frame
work carrying the inclined feeding web) the whole rises and falls together, and
by the usual lever and weight adjusts itself to the varying thickness of feed in
the feed box.
-

page_text: The upper and lower feeding webs together gradually compress and pass the
hay or material to be cut towards the mouthpiece and knives.
In consequence of the inclined feeding web having a rising and falling move-
ment throughout its entire length, it adapts itself completely to the bulk of
material passing underneath.
The gear lever arms on each side of the mouthpiece are connected together by
a cross handle over the feed box in the usual way. But I curve the lever arms
to a point over the top end of the inclined feeding web so that the attendant
when feeding may press his arm or body against the cross handle thus throwing
the machine out of gear.
Datad this 5th day of Vov 1900
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.
Improvements in or connected with chan cutters.
I, SAMUEL BRASSINGTON BAMFORD, of the Firm of Bamford & Sons, Leighton
Iron Works, Uttoxeter, in the County of Stafford, Agricultural Engineers, 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 invention relates to safety-feed chaff cutters which have a feeding web
or endless chain working at the bottom of the feed box and receiving motion
from the lower toothed roller shaft, and also an inclined feeding web or endless
chain placed over the feed box and receiving motion from the top or rising toothed
roller shaft.
Such chaff cutters have hitherto been of a somewhat complicated nature; the
object of my invention is to simplify the construction and number of parts, and
to this end it comprises the improvements hereinafter described and illustrated
in the accompanying drawings in which:-
Figure 1 is a front view of the head of a chaff cutting machine having my
improvements applied thereto :
Figure 2 is a sectional side view, and
Figure 3 a longitudinal section thereof.
a is the endless feeding web or chain at the bottom of the feed box the
object of the said web a being to draw the hay or material to be cut, towards
the toothed feed rollers c, d and the knives e. Over the top of the feed box b
I provide an inclined feeding web or endless chain f, having its lower end close
to the rising toothed roller e and receiving motion from it.
.
As the motion of the inclined web f must be in a direction similar to that of
the rising toothed roller c I extend the rising toothed roller shaft at its right
hand end (when looking at the front of machine) and also the shaft fl carrying
the lower end of the inclined feeding web f and on these shaft ends I fix sprocket
wheels and i respectively the said wheels being connected by a link chain j
whereby the inclined feeding web f is driven by the rising toothed roller shaft c
and in the same direction therewith. Or I can use three spur wheels instead of
the chain and sprocket wheel.
In order to simplify the construction of the machine the whole of the frame-
work carrying the inclined feeding web f is attached to the back of the rising
mouthpiece without any other support whatever. To this end a plate mis
fixed on each side to carry the inclined feeding web f, each side plate m having
at its lower end an angle bracket m' which is bolted to the back of the rising

page_text: mouth-piece carrying the rising toothed roller c. The side plates m are con-
nected together at their opposite or highest ends with a cross plate m² and a cover
plate m³ is provided over the whole of the inclined web to prevent accidents.
The lower portion of the rising frame slides in recesses n made on the inner
sides of the top of the fixed side cheeks n¹ of the chaff cutter head. Bearings
are also provided at the lower portion of the rising side plates m m, the said
bearings working in slots o in the fixed side cheeks n¹ of the chaff cutter head.
These bearings carry the lower shaft or roller f which is formed with pro-
jections for the inclined feeding web f and receives motion through the chain j
and sprocket wheels and i from the rising toothed roller shaft c' as above
described.
At the upper end of the inclined feeding web f is also a roller. q with pro-
jections. The axle of this roller revolves in the rising side plates m and has an
adjustable bearing q¹ at each end for regulating the web. When the upper
toothed roller c, rises with the frame which carries it (to which is fixed the side
plates or framework carrying the inclined feeding web) the whole rises and falls
together, and by the usual lever and weight adjusts itself to the varying thick-
ness of feed in the feed box.
The upper and lower feeding webs f and a together gradually compress and
pass the hay or material to be cut towards the feeding rollers and on to the
mouthpiece and knives.
In consequence of the inclined feeding web having a rising and falling.
movement throughout its entire length, it adapts itself completely to the bulk
of material passing underneath.
The gear lever arms on each side of the mouthpiece are connected together by
a cross handle over the feed box in the usual way. But I curve the lever arms
to a point over the top end of the inclined feeding web so that the attendant
when feeding may press his arm or body against the cross handle thus throwing
the machine out of gear.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
--
1. In chaff cutters of the kind described, mounting the inclined feeding web
in a frame secured to the rising mouthpiece which carries the top roller in such
a manner that the said feeding web rises and falls through its entire length,
substantially as herein before described.
2. In chaff cutters of the kind described in Claim 1 driving the inclined web
by chain and sprocket or toothed gear from the shaft of the rising toothed roller
in the same direction as the latter, substantially as herein before described.
3. In chaff cutters of the kind described, mounting the inclined feeding web
in adjustable bearings fitted to a frame comprising side plates secured together
at the upper end by a cross plate and to the back of the rising mouthpiece at
the lower end by means of angle brackets, and fitting into recesses in the side
plates of the head, substantially as herein before described.
4. Chaff cutters consisting of the parts combined, arranged and operating,
substantially as herein before described and illustrated in the accompanying
drawing.
G. F. REDFERN & Co..
4, South Street, Finsbury, London,
Agents for the Applicant.