Improvements in Machines for Bagging Chaff.
Year: 1887

page_text: Date of Application, 6th Dec., 1887
Specification Accepted, 6th Jan., 1888
COMPLETE SPECIFICATION.
Improvements in Machines for Bagging Chaff.
I, GEORGE EDWARD VAUGHAN, of 57, Chancery Lane, in the County of Middlesex,
Patent Agent, do hereby declare the nature of this invention, being a communication
to me from abroad by William Andrews, and Arthur Ward Beaven, both of
Christchurch, New Zealand, Engineers, (trading as Andrews and Beaven) and in
what manner the same is to be performed to be particularly described and ascertained
in and by the following statement:
Machines for pressing chaff into bags have hitherto been used in connection with
chaff cutting apparatus, the chaff being raised from the latter by an elevator, and
this invention relates to machines, of the nature ordinarily employed in the Australian
Colonies and New Zealand, which mainly consist of a screw revolving within a
cylinder. In these machines after the bag has been drawn on to the exterior of the
cylinder the chaff is pressed into the same by the revolution of the screw, the bag
being thereby gradually drawn or pushed off the cylinder until the mouth of the same
reaches the bottom of the latter when the bag is full the revolution of the screw is
then arrested, until the full bag has been removed, and another empty bag placed in
position on the cylinder, when the screw is again started. This stopping and
restarting of the screw is very objectionable, and, in order to obviate the necessity
therefor the machines, constructed in accordance with this invention, have a valve or
slide (hereinafter termed the valve) arranged within the cylinder, which valve is
caused, either automatically or otherwise, to arrest the feed of the chaff to the screw
at the desired time, and to keep the same arrested until it is again desired that the
chaff shall be pressed forward, the employment of the said valve renders any
This invention further
interference with the working of the screw unnecessary.
relates to improvements in the construction of rings by which bags are secured in the
desired position on the cylinder.

page_text: In machines to which this invention relates the bag is drawn up over the exterior
of the cylinder as herein before stated, and the mouth thereof is attached to, or secured
by, a ring or it is supported by a platform, the said ring or platform is suspended by
cords or chains, which are arranged in connection with a brake so as to prevent the
too easy descent of the bag and the amount of chaff, which is pressed into the bag by
the revolution of the screw, can be regulated by adjusting the amount of friction
exercised by the brake. The said chains or cords which are attached to the ring or
platform at the mouth of the bag are by the revolution of the brake spindle wound
on to sheaves fixed on the latter, and, at the same time, the revolution of the said
spindle winds up or raises a chain, cord or rod connected with the valve which is
thereby opened, or, in some cases, the valve is arranged in connection with a lover so
that it can be raised and opened independently by an attendant. When the valve has
been raised the chain, cord, rod or other connection is retained by a catch or grip
which, when it is desired that the valve should be closed, is released by means of a
lever, chain, cord or rod connected to it, or, it is released automatically by a lever
which is connected by a chain or cord with the bag ring and is actuated thereby
when the said ring reaches the lower part of the cylinder, that is, when the bag is
full. When the. chain, cord or rod connected with the valve is released, the latter
closes by reason of its own weight or it is closed by the action of a spring or springs
or other suitable mechanical device.
The word "brake", as employed in this specification is intended to mean the.
brake spindle or the brake or any connection thereof having a similar revolving
movement.
al
I will now proceed to refer to the accompanying drawings in which Figure 1. is
a side elevation of a machine constructed in accordance with this invention, Figure 2
is a section through A. B. Figure 1., and Figure 3. is a section through X. Z.
Figure 2. In these Figures the bag ring is shown connected to a pivoted lever so
arranged in connection with the catch or grip holding the chain for retaining the
valve in an open position, that when the bag has been filled and the bag ring has
reached its lowest point, the said lever will be turned, thereby releasing the last
mentioned chain from the catch or grip and allowing the brake to descend and close.
The valve, as illustrated in the said Figures, consists of two flaps G. hinged to the
slide g. The same letters of reference indicate like parts in all the said Figures.
D. is the cylinder. E. is the screw which consists of one or more blades and which
is fixed on the spindle F. G' G2 are chains for holding flaps of valve when closed, L. is
a chain, one end of which is attached to the slide g. and the opposite end to the brake
spindle, although the chain L. is shown attached to the said spindle, it will be
understood that it may be attached to any connection of the brake having
similar action. The said chain L. runs over a sheave M., N. is a catch or grip which
presses the chain against O. and retains the valve open, N¹ shows the position of the
catch when open to allow the chain to run down, whereby the valve is closed, H. arc
chains from bag ring I. to the sheaves I I2 on the brake spindle. The last mentioned
chains are wound on to the said sheaves and the bag thereby pulled on to the cylinder,
by pulling the cord J. which is wound on its sheave in the opposite direction. K. is
a ratchet-wheel which, when caught by the pawl K4, as shown in the drawings,
retards the revolution of the brake spindle, and consequently the running down of
the bag, the said ratchet-wheel K., which is mounted loosely on the brake spindle, is
pressed between the friction blocks K K. The block K is fixed on the brake
spindle and the block K² revolves therewith, but is arranged to slide along the same
so that the pressure on the ratchet-wheel K. can be regulated by means of the screw
nut K³. When the cord J. is pulled the ratchet and whole brake revolve together,
and wind up the chain L. on the brake spindle; P. is a chain connecting the bag
ring I. to the lever R. which is connected to the grip N, for the purpose of
automatically releasing the same when the bag is full and it is desired that the valve
should be closed.
In Figure 1. the varve is shown closed, and the lever R. in the position it would

page_text: The
occupy when the catch N. is released and the reverse position of the lever R is shown
in dotted lines. In Figure 2. the valve is shown open. The dotted lines N' in
Figure 3 show the catch or grip N. open. Figures 4. and 5 are sectional views of a
machine showing modifications in the construction of the valve and the mechanism
connected therewith. The same letters of reference indicate like parts in both these
Figures. F. is the cylinder E. the screw, and G. a fixed bearing for same.
flaps 112 which constitute the valve (shown closed in Figure 4 and open in Figure 5)
are jointed to the sliding joint J. and are connected to the bearing G. by the links H.;
the chains H'H' support the flaps; J³ is a rod by means of which the valve is lifted
and opened. L is a lever pivoted at L' for raising the rod J³; M³ is a catch which
falls on to the lever L. when it is depressed, and retains it in that position. M. is a
weighted lever to which the catch M' is attached; M³ is a chain connecting the bag
ring M² to the lever M. so that when the bag is pressed to the bottom of the cylinder
the chain M³ pulls the lever and removes the catch M from the lever L. which being
weighted at its inner ends falls and closes the valve.
In Figure 4. the dotted line S. shows a further modification which consists of a rod
the upper end of which projects inwards and is connected to the rod J³ carrying the
sliding joint J. the remainder of the rod S. is arranged outside the cylinder and is
moved
up or down by the pressure of the bag ring against the stops S¹ S¹ thereby
opening or closing the valve.
In some cases the valve is constructed somewhat similar to a throttle valve and is
pivoted at the centre to the sliding piece J.
The term "bag ring," hereinbefore employed, is intended to refer to the mouth of
the bag, or to a ring or other contrivance arranged in connection therewith.
The following is a description of the improvements in connection with bag rings
and in clips to be used in connection therewith. Figure 6. is a front view of the bag
ring and clip, and Figure 7. is a top view of the same. Figure 8. is a top view of the
clip, and Figure 9. is a detached view of the fastening thereof. N. is the bag ring
which is, by preference, bell-mouthed, and is connected by chains N with sheaves on
the brake spindle as hereinbefore described. O. is a circular clip which is placed
round the ring when in position on the cylinder and retains the bag in the desired
position; P. is a hinged lever which is pivoted to the end P1 of the clip as shown in
Figures 6. and 7. or to the opposite end as shown in Figure 8., by folding the lever P.
back to the position P³ Figure 7. the clip is opened. When the lever P. is constructed
and arranged as shown in Figure S., the clip is sufficiently elastic to open by itself,
in this case, the lever P is hinged at P' and the inner end thereof is prolonged to P,
the opposite end P of the clip is shown opened out to allow the lever P. to be passed
through it, this having been done the end P is brought round to position Po
(Figure 8.) and locks into the recess or catch P. When the lever P. is in the
position P (Figure 8.) it forces the end P out of the recess P". Spikes, spring
catches such as Y, or weighted catches such as X Figure 6. can be used for
temporarily retaining the ring N. until the clip O. is placed in position and
gripped.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what I
claim is
First. In chaff bagging machines, the arrangement within the cylinder and above
the screw, of a valve, substantially as, and for the purposes, hereinbefore described.
Secondly. In chaff bagging machines constructed substantially as hereinbefore
described, the connection of the chain cord or rod, by which the valve is suspended,
with the spindle or other part of the brake, substantially as, and for the purpose,
hereinbefore described.
Thirdly. In chaff bagging machines constructed substantially as herein before
described, arranging the bag ring or support of the bag in connection with the clutch
or grip by which the valve is held in suspension, substantially as, and for the purpose,
hereinbefore set forth.

page_text: Fourthly. In chaff bagging machines constructed substantially as herein before
described, the construction and arrangement of the catch or grip for holding the chain
supporting the valve, substantially as hereinhefore described.
Fifthly. The combination and arrangement of parts constituting the improved
bagging machine and consisting of the cylinder, screw, valve and parts connected
therewith, substantially as, and for the purpose, hereinbefore described.
And sixthly. The combination, construction and arrangement of the bag ring N.
and clip O. Figures 6. 7. 8. and 9, substantially as, and for the purpose, hereinbefore
described.
1007
VAUGHAN & SON,
Agents for the Applicant.