IMPROVEMENTS. IN APPARATUS FOR CUTTING CHAPP AND SUCH LIKE MATTERS
Year: 1870

page_text: LETTERS PATENT to Affifi Lely, of Redditch, in the County of
Worcester, Machinist, for the Invention of "IMPROVEMENTS. IN
APPARATUS FOR CUTTING CHAPP AND SUCH LIKE MATTERS.'
"
PROVISIONAL SPECIFICATION left by the said Affifi Lely at the
Office of the Commissioners of Patents, with his Petition, on the
3rd December 1870.
I, AFFIFI LELY, of Redditch, in the County of Worcester, Machinist,
3 do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN APPARATUS FOR CUTTING CHAFF AND SUCH LIKE MATTERS," to be as
follows:-
:
These improvements relate to means by which the matters to be cut
may be at rest during the time of the cutting. being effected and
the required progressive motion is given to them only between the
periods of cutting.
In carrying out these improvements I employ a worm wheel acting
on a pin or tooth wheel or wheels to give the progressive motion to the

page_text: feed rollers, and thence to the matters to be cut, but in place of the thread
of the worm being continuous in its curve it is formed with a part or
parts where the curve of the thread is turned into straight lines or lines at
right angles to the axis of it, so that at these parts the progressive motion
to the matters to be cut ceases and for the time those matters remain at
rest, and these times of rest to the matters correspond with the times
when the knife or knives act on the matters to cut them. By these
means lateral strain on the knife during cutting by the pressure thereon
of the matters to be cut is avoided, the matters are cut of uniform
length, and power for working the apparatus is economized.
Also the improvements relate to means by which the length of the
matters cut may be varied. For this purpose there are two or more
worm wheels of varying pitch one adapted to act in the spaces of
adjoining teeth of the pin or tooth wheels, another to miss one pin or
tooth for each movement thereof, and if need be, they may be applied :
for other variation. These worm wheels are capable of being moved
to bring the one for the time required into operation and there held till
a change is desired.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Affifi Lely in the Great Seal Patent Office on :
the 2nd June 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, AFFIFI
LELY, of Redditch, in the County of Worcester, Machinist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent bearing date the Third day of December, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Affifi Lely, Her special licence that I, the
said Affifi Lely, my executors, dministrators, and assigns, or such 3
others as I, the said Affifi Lely, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should
and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle 3

page_text: of Man, an Invention for "IMPROVEMENTS IN APPARATUS FOR CUTTING CHAFF
AND SUCH LIKE MATTERS," upon the condition (amongst others) that I, the
said Affifi Lely, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and scals, should
particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent.
:
NOW KNOW YE, that I, the said Affifi Lely, do hereby declaro.
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say:-
These improvements relate to means by which the matters to be cut
may be at rest during the time of the cutting being effected, and the
required progressive motion is given to them only between the periods
of cutting.
In carrying these improvements into effect, I employ a worm wheel
acting on a pin or tooth wheel or wheels to give the progressive motion
to the feed rollers and thence to the matters to be cut, but in place of
the thread of the worm being continuous in its curve, it is formed with
a part or parts where the curve of the thread is turned into straight
lines, or lines at right angles to the axis of it, so that at these parts the
progressive motion to the matters to be cut ceases, and for the time
those matters remain at rest, and these times of rest to the matters
5 correspond with the times when the knife or knives act on the matters
to cut them.
Also the improvements relate to means by which the length of tho
matters cut may be varied. Two or more worm wheels of varying
pitch one adapted to act in the spaces of adjoining teeth of the pin or
0 tooth wheels, another to miss one pin or tooth for each movement
thereof, and if need be they may be applied for other variation. These
worm wheels are capable of being moved to bring the one for
the time required into operation and there held till a change is
desired.
5
But that the Invention may be fully understood I will by the aid of
the accompanying Drawings proceed to describe means pursued by me
in carrying the same into effect...
"

page_text: Figure 1 shows a portion of a side view, and Figure 2 a portion of an
end view of apparatus for cutting chaff and such like matters with
improvements thereto according to my Invention. a, a, are the axes of
the rollers a¹, a³, which give the progressive motion to the matter to be
cut by a knife or knives carried by the wheel b, and c, c, are face wheels
affixed to the axes a, a, and having teeth c', projecting from their sur-
faces to take into the threads of a worm wheel d, all which aro similar to
what are now in use except that in carrying out my improvements
I in place of forming the threads of the worm wheel d of a continuous
curve or incline, I form them so that the curved or inclined portions ďª, ď³,
continue during portions only of the circumference of the worm
wheel d, and they at & run in lines at right angles to the axis of the
worm wheel, the effect of which is that the delivery rollers on the
axes a, a, will have an intermittent rotary motion imparted to them and
remain stationary during the intervals so that the cutting by the knives
may take place during such times of rest.
Figure 3 shows an end view of the worm wheel with its worm, and
Figure 4 shows the surface of the worm thereof opened out as shewn,
the worm is provided with two periods d' for giving motion to the feed
rollers and two periods of rest to them during each revolution of that
wheel d, and with such arrangement of worm wheel two cutting blades
would of course be used. If only one cutting blade were required to
act in the rotation of the worm wheel & then the worm of such wheel
would be formed with only one inclined part to give the desired
progressive motion to the matter to be cut, and one straight or
holding part d³ to hold the feed rollers stationary during the cutting
operation.
Figures 5 and 6 show portions of an end view, and Figures 7 and 8
portions of two side views, with the parts in different relative positions, a
modification of the Invention by which the length of the matters cut
may be varied. In this case the two toothed plates c are each capable
of sliding endwise on the square portions of the axes a of the feed
rollers a¹, so as to be held in or out of gear with a worm on the wheel d,
and the worm wheel d is formed with two pairs or sets of worms 1 and 2 3
of different pitch so as to vary the movement of the feed rollers as
effected by them, and this wheel dis capable of sliding endwise on its

page_text: square or other suitably formed portion of the axis 6' of the wheel b,
and the cutters carried thereby. These Figures show this worm wheel d
in two different positions in relation to the wheel c, c. In Figures 5
and 7 the threads 1 are shown in operation to act similarly to the
arrangement shown by Figures 1 and 2. In Figures 6 and 8, the
worms 2 are shewn in operation to cause the feed rollers to move double
the distance at each of their partial rotations. The sliding of the
wheels c, c, on these respective axes a is effected by means of the lever
handle e, which is supported to turn on the axis e¹, and is formed with
forks e' to embrace the necks c³ of the respective wheels c so as to move
them into or out of gear with the worms of the wheel d, and in either
position the lever arm e is held by falling into notches in the spring rod ƒ.
When the teeth of the wheel c are withdrawn from contact with either
worms of the wheel d, that wheel may be slided readily endwise as indi-
cated on the axis 6'. When in the position indicated by Figure 7 that
wheel may be held correctly by the spring cotter g. When in the
position indicated by Figure 8 it will not require any such fastening.
By these means lateral strain on the knife during cutting by the pressure
thereon of the matters to be cut is avoided, the matters are cut of uniform
length, and power for working the apparatus is economized.
Having thus described my Invention and means which I adopt in
carrying the same into effect, I would have it understood that I do
not confine myself to the precise arrangement of parts as shown and
described as they may be varied without departing from the peculiar
character of my Invention, but what I claim is the improvements in
apparatus for cutting chaff and such like matters whereby the matters
to be cut may be held stationary during the cutting operation substantially
as described.
In witness whereof, I, the said Affifi Lely, have hereunto set my
hand and seal, this Twenty-fifth day of May, in the year of our