Improvements in Hand Power Chaff Cutting Machines.
Year: 1888

page_text: Date of Application, 20th Oct., 1888
Complete Specification Left, 20th July, 1889-Accepted, 24th Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements in Hand Power Chaff Cutting Machines.
I JAMES GADSBY RICHMOND of the firm of Richmond and Chandler of Southall
Street Manchester in the County of Lancaster Agricultural Implement Makers do
hereby declare the nature of this Invention to be as follows:-
My invention consists in certain improvements in the gearing and other parts of
hand power chaff cutting machines.
My first improvement relates to those machines in which a worm on the flywheel
shaft gears into and drives face worm wheels on the feed rollers and consists in
forming the teeth on each worm wheel so that they lie at the same angle as the
worm instead of having the teeth set radially on the worm wheel as now customary.
The advantage of this arrangement is that the teeth are stronger and work more
evenly with the worm whereby friction is diminished.
My second improvement consists in casting the star rollers directly upon their
shafts in place of casting the star rollers separately and securing them upon their
shafts. By this improvement labour is saved the use of loose collars or other similar
contrivances on the shafts is dispensed with and the star rollers can be set to run
more truly..
My third improvement consists in substituting for the usual spiral or flat springs
placed so as to bear upon the top feed roller springs set between the top and bottom
feed rollers. To this end I form the roller bearings in two pieces of which the lower
piece is fixed to the frame and carries the lower roller while the upper piece is fitted
in slideways and carries the upper roller a space being left between the two pieces
and between the roller axles in which is placed a strong spiral spring the ends of the
spring abutting against two lugs one on each of the two pieces. The advantage of
this arrangement is that I am able to use longer and stronger springs than with the
usual arrangement of roller bearings and springs.
My fourth improvement consists in using instead of the ordinary forked lever and
connections for weighting the top roller a cast bracket pivoted to the side links;
this bracket has two hooks or projections which take into slots cast in the front leg
of the machine and on the other side or back of the bracket is a projection to which
the bar for carrying the weight is bolted.
In combination with my improvements as described I propose to employ an open
rising cover connected by links to the sliding bearings of the top feed roller or
otherwise arranged to rise and fall with the top roller.
1
1000
H. B. BARLOW,
A gent.
COMPLETE SPECIFICATION.
Improvements in Hand Power Chaff Cutting Machines.
I, JAMES GADSBY RICHMOND, of the firm of Richmond and Chandler, of Southall
Street, Manchester, in the County of Lancaster, Agricultural Implement Makers, 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 consists in certain improvements in the gearing and other parts of
hand power chaff cutting machines.
My first improvement rolates to those machines in which a worm on the fly wheel
shaft gears into and drives face worn wheels on the feed rollers and consists in

page_text: forming the teeth on each worm wheel so that they lie at the same angle as the worm
instead of having the teeth set radially on the worm wheel as now customary. The
advantage of this arrangement is that the teeth are stronger and work more evenly
with the worm whereby friction is diminished.
My second improvement consists in casting the star rollers directly upon their
shafts in place of casting the star rollers separately and securing thein upon their
shafts. By this improvement labour is saved the use of loose collars or other similar
contrivances on the shafts is dispensed with and the star rollers can be set to run
more truly.
My third improvement consists in substituting for the usual spiral or flat springs
placed so as to bear upon the top feed roller springs set between the top and bottom
feed rollers. To this end I form the roller bearings in two pieces of which the lower
piece is fixed to the frame and carries the lower roller while the upper pieco is fitted
in slideways and carries the upper roller a space being left between the two pieces
and between the roller axles in which is placed a strong spiral spring the ends of the
spring abutting against two lugs one on each of the two pieces. The advantage of
this arrangement is that I am able to use longer and stronger springs than with
the usual arrangement of roller bearings and springs.
My fourth improvement consists in using instead of the ordinary forked lever and
connections for weighting the top roller a cast bracket pivoted to the side links; this
bracket has two hooks or projections which take into slots cast in the front leg of
the machine and on the other side or back of the bracket is a projection to which the
bar for carrying the weight is bolted.
•
In combination with my improvements as described I propose to employ an open
rising cover connected by links to the sliding bearings of the top feed roller or
otherwise arranged to rise and fall with the top roller.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying three Sheets of Drawings reference being had
to the figures and letters marked thereon.
Figure 1 is an end elevation and Fig. 2 a side elevation of a hand power chaff
cutter fitted with my three first improvements. Fig. 3 is a detail view on an enlarged
scale illustrating my first improvement and Figs. 4 and 5 are detail views also on an
enlarged scale illustrating my third improvement. Fig. 6 is a similar view to Fig. 2
and illustrates the application of my fourth improvement.
Similar letters refer to similar parts throughout the several views.
In these views-a designates the frame of the machine, & the upper and c the lower
star or feed roller, d is the fly wheel keyed on the shaft d' and 'e is the worm which
is also fixed on the fly wheel shaft and gears into and drives the two worm wheels f
one of which is fixed on the axis of the star roller b and the other on the star roller c.
The teeth of these worm wheels fare formed according to my first improvement as 4
best shown in the detail view Fig. 3 so that the shape and angle of the said teeth
correspond to the pitch of the worm e.
According to my second improvement I cast each of the star or feed-rollers b c
directly upon their shafts or axes instead of casting them separately and fixing them
upon their shafts as hitherto customary.
4
According to my third improvement I form as shown best in Figs. 4 and 5 the
feed roller bearings at each end in two pieces g and h respectively. I bolt or-
otherwise fix the lower piece g which carries the lower roller c to the frame of the
machine and I fit the upper piece which carries the upper roller bin vertical
slideways in the piece g. In the space between the two parts g and I place a strong 5
spiral spring i the lower end of which bears upon a projection on the upper piece /
while the upper end abuts against a projection g' on the lower piece g. The effect
of this arrangement is that the spiral spring i is always exerting its force in the
direction tending to draw the two feed rollers b and c together.
In my fourth improvement which is illustrated by Fig. 6 I pivot at j¹ to the side 5
links (only one of which is shown) a cast bracket k which is formed with two hooks
or projections which take into slots or openings a' indicated by dotted lines Fig. 6

page_text: cast or otherwise formed in the frame a of the machine; to the back of the bracket k
is bolted the bar m which carries the weights n by which the top feed roller is
weighted. This improved weighting devico may be used as a substitute for a spring
weighting device.
This view Fig. 6 also illustrates the application of an open cover o which is connected
to the sliding bearings h of the top feed roller b.
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 several constructions combinations and arrangements of parts embodying my
improvements in hand power chaff cutting machines said improvements consisting
essentially in forming the teeth of the worm wheels of a shape and angle correspond-
ing to the pitch of the worm, secondly in making the feed roller bearings in separate
parts and in arranging a spiral spring to constantly act on said parts and tend to
draw the rollers together and lastly in the devico for weighting the top feed roller
instead of a spring weighting device all substantially as and for the purposes herein
described with reference to the Drawings annexed.
2. The combination with the worm e, of the face worm wheels f formed with teeth
shaped and set at an anglo to correspond with the pitch of the worm substantially
as herein set forth.
h
3. The combination with the fixed bearings g carrying the lower feed roller c and
the sliding bearings / carrying the upper feed roller b, of spiral springs & each com-
pressed between abutments gl and substantially as herein set forth.
Doted this 10. dov of T..L.. 1000
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.