Year: 1887

page_text: Date of Application, 9th May, 1887
Complete Left, 8th Feb., 1888
Complete Accepted, 9th Mar., 1888
invention to be as follows:-
This Invention has for its object improvements in Weighing Machines; whereby
they may be rendered automatic, for the continuous and accurate weighing of equal
weights of articles to be measured or weighed.
For this purpose I attach, over that side of the Balance where articles are weighed,
a Hopper, fitted at its base with a suitable Chamber, & communicating with the
Hopper by an opening or orifice. In this Chamber, I suspend on two centres a slide
or curved shutter; arranged to slile over the mouth of this Orifice, in such a manner
that the movement of the Slide closes or opens the Orifice above referred to. 1 attach
this Slide, by means of a Lever and Connecting Rod-which are counterbalanced by
an adjustable Balance weight--to one of the movable Arms or parts of the Weighing
Machine in such a manner, that when that side of the Balance on which Articles are
to be weighed is empty, the connecting Rod and lever move the Slide from over the end
of the Orifice; and allows the material to be weighed to pass through it, from the
Hopper, on to the Balance; until the required quantity or weight has passed, when
its weight causes the Machine or Balance to balance the Counterpoise or Weight on
the opposite side of the Machine. The movement of so doing is transmitted by the
Connecting Rod and Lever to the Slide in the Hopper Chamber; which is thereby
moved across the end of the opening to the Hopper, and stops the flow of the material
to the Balance, until that, which has just previously been weighed thereon is removed
from the Machine; when the empty side of the Balance again rises, and the action
referred to above is repeated. The Hopper is attached to the Standard or Frame of
the Machine.

page_text: I, THOMAS WARSOP of Coniston near Ambleside, Engineer, 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:-
This Invention has for its object Improvements in Weighing Machines; whereby
they may be rendered automatic, for the continuous and accurate weighing of equal
weights of Articles to be measured or weighed.
For this purpose, I attach over that side of the Balance--where articles are
weighed a Hopper fitted at its base with a suitable Chamber, and communicating
with the Hopper by an opening or orifice. In this Chamber 1 suspend, on two
centres, a Slide or curved Shutter; arranged to slide over the mouth of this orifice,
in such a manner, that the movement of the Slide closes or opens the Orifice above
referred to. I attach this Slide by means of a Lever and Connecting Rod-which
are counterbalanced by an adjustable Balance weight-to one of the movable Arms or
parts of the Weighing Machine, in such a manner, that when that side of the Balance
on which Articles are to be weighed is empty; the Connecting Rod and Lever move
the Slide from over the end of the Orifice; and allow the material to be weighed to
pass through it, from the Hopper on to the Balance; until the required quantity or
weight has passed; when its weight causes the Machine or Balance to balance the
Counterpoise or Weight on the opposite side of the Machine.
The movement of so doing is transmitted by the Connecting Rod and Lever to the
Slide in the Hopper Chamber, which is thereby moved across the end of the opening
to the Hopper, and stops the flow of the material to the Balance; until that which
has just previously been weighed thereon is removed from the Machine; when the
empty side of the Balance again rises, and the action referred to above is repeated.
The Hopper is attached to the Standard or Frame of the Machine.
And in order that my Invention may be fully understood, and readily carried out
and into effect; I will proceed to describe the accompanying sheet of drawings;
reference being had to the letters marked thereon.
Fig. 1 is a Side Elevation of a Weighing Machine; with my improvement
attached.
Fig. 2 is an End Elevation of the same Machine.
Fig. 3 is an enlarged transverse sectional view through the line 1-2 (Fig. 2),
shewing the Orifice at the base of the Hopper, the movable Slide, Chamber, Lever,
Balance Weight, &c.; and Fig. 4 is a sectional view in Plan through the line 3-4
(Fig. 3) of the same parts.
Similar letters refer to similar parts throughout the several views.
In these views, A is the Standard or Frame of the Weighing Machine; carrying
the levers B. B, forming the Balance; and to which the Tables or Trays C and D are
attached, for receiving respectively the Weights, and articles to be weighed. To the
upper portion of the Standard A, I-carry-over the Tray-D, by means of the Arm E,

page_text: a Hopper H, communicating by a passage or orifice G with a Chamber F formed in
its lower part.
In this Chamber F, I suspend on the two centres I¹ and I carried by Brackets J¹
and J, a Shaft K and Levers L. L; which carry a Slide or curved Shutter M, which
fits close up against the mouth of the Orifice G.
On the Shaft K, I fix a double-ended Lever N; carrying at one end an adjustable
Balance-weight 0-so adjusted as to exactly counterbalance the weight of the opposite
end of the Lever, Connecting Rod, &c.; and at the other end of the Lever N, a
Connecting Rod P is attached; the lower end of which receives the Stud Pin Q,
which is attached to the Table or Tray D at its upper part.
The operation of the Machine is as follows:-
The Rice, Corn, Flour, or other Articles to be weighed and measured are placed in
the Hopper H, and the Bag or Sack to receive it is placed on the Tray D, immediately
under the Chamber F. As soon as the required Weights-say 2 lbs.--are placed on
the opposite Tray C, this side of the Balance is lowered, and the opposite side D
raised; carrying with it the Connecting Rod P, Lever N, and partially revolving the
Shaft K, and with it the Shutter M3 which is moved across and away from the
Orifice G; which is thereby fully opened and allows the Rice-or other material to
be weighed to pass into the Bag underneath, until the required quantity or weight
bas passed when the weight of the Rice or other material-in the Bag causes the
Tray D to descend, bringing with it the Connecting Rod P, Lever N, and sliding the
Shutter M across the Orifice G; which it completely closes, and stops the flow of
the Rice or other material-into the Bag. When the full Bag is removed and
replaced by an empty one; the end of the Balance D again rises; and the action
described above is repeated.
;
I have described an arrangement of Machine with one Slide, to effect the auto-
matic weighing of Materials by my improved method; but two or more Slides may
be used, in some cases, to effect the same end by my improved method.
'
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 :-
1st. The use and application to Weighing Machines of a balanced Slide or Shutter
connected by suitable means to one arm of a Weighing Machine, & moving across
an Orifice at the base or side of a Hopper, and actuated by the rise and fall of the
said Arm of the Weighing Machine; in such a manner, that the aforesaid Orifice is
opened and closed by the Slide or Shutter, according as the Weighing Machine Arm
rises or falls; as set forth, and substantially as shown and described hereinbefore.
2nd. The particular arrangement and construction of the apparatus shewn in
Figs. 1-2-3 & 4 of the annexed drawings; as set forth, and substantially as shewn
and hereinbefore described.
Dated this Seventh day of February 1888.
HENRY WALKER HILL,
Agent for the said Thomas Warsop.