Improvements in Apparatus for Controlling the Filling of Sacks at the Outlet Shoots of Threshing and similar Machines, and in Securing the Sacks thereto.
Year: 1891

page_text: Date of Application, 3rd Dec., 1891
Complete Specification Left, 22nd Aug., 1892-Accepted, 24th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Controlling the Filling of Sacks at
the Outlet Shoots of Threshing and similar Machines, and in
Securing the Sacks thereto.
A communication from RUDOLF HOFHERR, of X Erlachgasse 26; Vienna, in the
Empire of Austro-Hungary.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., do hereby declare the nature of this invention to be as follows:-
A great many machines are so constructed as to deliver their products directly
into sacks, which for this purpose are placed at the delivery end of the machine and
either attached by means of hooks or otherwise supported in the required position
at one or more points. The discharge shoot of the machine is then opened and the
sack filled. As soon as the sack was filled however it has hitherto been necessary
to close the sliding door of the discharge orifice previous to removing the filled sack,
i.e. disconnecting it from the machine. The removal of each filled sack and the
substitution for it of an empty sack, to be filled in its turn, therefore always
required about six or eight different movements of the hand, to be performed in a
predetermined and constantly to be remembered, order of succession.
This invention relates to a fastening device enabling by one operation of a lever
both the sack to be secured in place and the sliding shutter or door of the delivery
shoot to be opened.
The mouth of the discharge or delivery shoot is provided with a bent projection
or hooked bracket whereby a sack fitted to the said mouth is prevented from slipping
off, the sack supporting clamp being secured above the discharge orifice and con-
sisting of two spring arms or equivalent.
A sliding door or shutter is arranged to cover the mouth through which the
material passes into the sacks. A bell-crank lever is arranged so that its shorter
arm operates the sliding door or shutter in order that according to its position this
door is either shut or open. The longer arm of the bell-crank lever is situated
between the two portions or arms of the sack supporting clamp and is provided on
both sides with staples each of which encloses one of the arms.
By pressing down the lever the clamp is closed so as to grasp the sack while the
short lever arm at the same time opens the sliding door.
By raising the lever handle the clamp is opened so as to release the sack while at
the same moment the delivery door is closed by the short lever-arm.
The sack to be filled is placed against the discharge mouth placed over the hooked
bracket or the like and between the clamping arms whereupon the lever-handle is
pressed down so that the sack is secured in position while at the same time the
discharge shoot is automatically opened.
When the sack is filled the lever is raised so that the sack is released and the
discharge shoot simultaneously closed.
Dated this 3rd day of December 1891.
W. P. THOMPSON & BOULT,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Controlling the Filling of Sacks at
the Outlet Shoots of Threshing and similar Machines, and in
Securing the Sacks thereto,
A communication from RUDOLF HOFHERR, of X Erlachgasse 26, Vienna, in the
Empire of Austro-Hungary.
1, ALFRED JULIUS BOULT of 323 High Holborn, in the County of Middlesex,
Member of the Institution of Mechanical 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:-
A great many machines are so constructed as to deliver their products directly
into sacks, which for this purpose are placed at the delivery end of the machine,
and either attached by means of hooks or otherwise supported in the required
position at one or more points. The discharge shoot of the machine is then
opened and the sack filled. As soon as the sack was filled, however, it has
hitherto been necessary to close the sliding door of the discharge orifice, previous
to removing the filled sack, i.e. disconnecting it from the machine. The
removal of each filled sack and the substitution for it of an empty sack, to be
filled in its turn, therefore always required about six or eight different move-
ments of the hand, to be performed in a predetermined, and constantly to be
remembered, order of succession.
This invention relates to a fastening device, enabling by one operation of a lever,
both the sack to be secured in place and the sliding shutter or door of the delivery
shoot to be opened.
The invention will be best understood by reference to the accompanying drawings
in which,
Figure 1 is a sectional elevation of the device, the delivery shoot being closed
and the sack carrying clamp open.
Figure 2 is a similar sectional elevation, showing a sack fastened to the discharge
end of the machine, the sliding door of which is open for delivery.
Figures 3 and 4 are end or plan views, Figure 3 corresponding to Figure 1 and
Figure to Figure 2.
The mouth a of the discharge or delivery shoot is provided with a bent projection
or hooked bracket whereby a sack fitted to the said mouth is prevented from
slipping off, the sack supporting clamp being secured above the discharge-orifice
and consisting of two spring arms or equivalent c c¹. Between the wall d and the
orifice or mouth a is arranged the sliding door or shutter e to cover the mouth
。 through which the material passes into the sacks. The bell-crank lever f pivotted
at the wall or cheek of a is arranged so that its shorter arm operates the sliding
door or shutter e,
in order that according to its position, this door is either shut
(Figures 1 and 3) or open (Figures 2 and 4). The longer arm of the bell-crank
lever is situated between the two portions or arms of the sack supporting clamp
and is provided on both sides with staples g g¹ each of which encloses one of the
arms cc.
By pressing down the lever the clamp c c is closed so as to grasp the sack, while
the short lever-arm at the same time opens the sliding door.
By raising the lever-handle, the clamp c c is opened so as to release the sack,
while at the same moment the delivery door is closed by the short lever-arm.
The sack to be filled is placed against the discharge mouth a placed over the
hooked bracket or the like and between the clamping arms cc' whereupon the lever-
handle is pressed down so that the sack is secured in position (Figures 2 and 4),
while at the same time the discharge shoot is automatically opened.
When the sack is filled the lever is raised so that the sack is released and the
discharge shoot simultaneously closed.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
1. Apparatus for attaching sacks to threshing and other machines consisting of a
lever such as one end of which engages and moves the sliding door e in combination
with spring arms or clamps such as c c and the mouth a of the discharge shoot
fitted with a bracket or projection such as whereby when the sack is placed
upon the bracket 6 between the clamps c' it is only necessary to operate the
leverf to grip or disengage the sack while at the same time the short lever arm
opens or closes the sliding door e according to the position of the sack, the whole
substantially as described and illustrated in the accompanying drawings.
2. In apparatus for the purpose specified the employment of a double purpose
lever such as f which simultaneously operates the sliding door and sack-gripping
devices substantially as described.
3. The combination in apparatus for the purpose specified of simultaneously
operated filling door and sack-gripping devices.
Dated this 22nd der of August 1892.
ALFRED J. BOULT,
Chartered Patent Agent.