PACKINGACHINE
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by the said Frederick Wheeler at tho
Office of the Commissioners of Patents on the 3rd February 1882.
FREDERICK WHEELER of East Cowes Isle of Wight,
WEIGHING AND PACKING MACHINERY,
IMPROVEMENTS IN
My Invention has for its object to weigh and pack in parcels tea, sugar, coffee,
rice, four, oatmeal, and similar substances.
These substances are allowed to fall from a hopper into a measuring chamber,
which is closed by two movable slides, one at the top and one at the bottom, the
height of the lower slide being made adjustable, so as to admit more or less material
into the measuring chamber-From the latter the materials fall through a shoot
into a scale suspended from a scale beam, the scale having a movable bottom which
can be closed by a spring and from which the material can be discharged into a
bag placed under the scale-The bag rests on a revolving turn table by which it
is carried within reach of a tap and folder-The flap is a lever pivotted to a fixed
stand and having a knee joint in the centre-It is so placed with regard to the
bag that by turning down the arm one side of the bag is folded inward. Two
other sides are folded down by two blocks or plates moving horizontally against
the side of the bag-The turn table carries four bags distributed at equal distances
on its circumference each bag being turned successively first under the scale and
then between the folders.
The turn table as well as the movable slides which close the measuring chamber
may be set in motion by the same wheel, worked by a treadle.
A shut off mechanism may be employed, consisting of a balanced beam having a
shoot attached to it, which shoot receives material from a feeder supplied from the
hopper above the measuring chamber and delivers it into the scale or into a waste
pipe, according to the position of the said shoot, which depends on the position of
thic balanced beam. The latter is suspended from the scale beam and causes
the shoot to discharge its contents into the waste pipe as soon as its equilibrium is
disturbed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Frederick Wheeler in the Great Seal Patent Office on the
3rd August 1882.
FREDERICK WHEELER, of East Cowes, Isle of Wight. IMPROVEMENTS IN
WEIGHING AND PACKING MACHINERY
My Invention has for its object to weigh and pack in parcels tea sugar coffee
rice Hour oatmeal and similar substances These substances are allowed to fall
fron a hopper into a measuring chamber which is closed by two movrable slides,
one at the top and one at the bottom, the height of the lower slide being made
adjustable so as to admit more or less material into a measuring chamber-From
the latter the materials fall through a shoot into a scale suspended from a scale beam
the scale having a moveable bottom which can be closed and from which the
material can be discharged into a bag placed under the scale-The bag rests on a
revolving turntable by which it is carried within reach of a flap and folder-The
flap is a lever pivoted to a fixed stand and having a knee joint in the centre-It
is so placed with regard to the bag that by turning down the arın one side of the
bag is folded inward-Two other sides are folled down by two blocks or plates
moving perpendicularly against the side of the bag-The turntable carries four
bags distributed at equal distances on its circumference each hag being turned
successively first under the scale and then between the folders-The turntable as
-well as the moveable slides which close the mensuring chamber may be set in
motion by the same wheel worked by a treadle-A shut off mechanisin may be
einployed, consisting of a balanced beam having a shoot attached to it which shoot
receives material from a feeder supplied from the hopper above the measuring
chamber and delivers it into the scale or into a waste pipe according to the
position of the said shoot which depends on the position of the balanced beam.
The latter is suspended from the scale beam and causes the shoot to discharge its
contents into the waste pipe as soon as its equilibrium is disturbed-The Drawings
hereunto annexed will serve more fully to illustrate the manner of performing the
Invention. Figure 1 side elevation; Figure 2 end clevation-Figure 3 back
elevation; Figure 4 plan-Figure 5 sectional plan and Fig. 6 detail of weighing
apparatus In all the Figures like letters refer to like or corresponding parts-
The machine consists of a large feeder A from which the article to be weighed
passes into the scale by the shoot B. The bridge-C partially supports the contents
of the feeder preventing them settling into an immovable mass. The two slide
valves D and E which form the top and bottom of the square measuring chamber Z
regulate the passage of the material to the scale delivering it at the proper
moment, and as near to the required weight as can be obtained by measurement
minus a small allowance for variation &e. the object being that in every case the
quantity admitted to the scale shall be rather less than the weight required, no
provision being made for taking overweight out of the scale. Valve D slides out
laterally and E longitudinally-They both run in T grooves; valve E is carried on
a sliding face X which forms the back of the chamber Z which arrangement
allows the whole or any part of the chamber Z to be filled according to quantity
or weight required The height of valve E is determined by the index or table F
on which is marked the position of the valve for admitting the required quantity
of the required article to the scale. H is a small feeder for making up weight
when the crank I moves, the material (which runs from the large into the small
feeder) is worked through the paralel bars J (arranged in a semi-circle) and issues
from the wile and narrow slit of the funnel attached to the small feeder at an

page_text: angle of 50° in a light steady stream The bars J are arranged finely or coarsely
according to material to pass through them-They are arranged in frames which
slide in like a drawer so that the bars can be changed to suit the article to bo
weighed L is the scale. The beam O has a shoot M to receive the stream and
direct it into the scale-M is fixed to the beam, is a part of it and is balanced with
it, the beam being hung low to counter balance the top weight of the beam shoot.
When there is not sufficiont weight in scale the stream coming from the small
feeder runs down the beam-shoot into scale. At the slightest drop of the beam the
shoot M passes below the stream from small feeder and cuts off the supply to the
scale which then runs into the drawer N till the crank T stops. This arrangement
is controlled by the peculiar construction of the weight pan T of the scale, which
has a small hole through the bottom, in which works a small weight U shaped
like a screw bolt, which weighs about a 1, oz or less when more than a quarter
ounce weight of material has to be inade up to the scale, the weight from T rests
on its own bottom, but as soon as weight is made up within 4 oz: the wright pan
rises until it is stopped by having to take up the additional weight U. This
movement puts the beam into a horizontal position and nearly closes the connection
between the small feeder and the beam shoot and the last few grains of weight
required are consequently made up very gradually and the cut off is instantaneous
on account of the minute drop required to shut off the supply to scale. V is a
catch to prevent any upward rebound of the scale. after it partially drops. The
catch is thrown back to its original position by the weight in the scale when the
latter is relieved from its contents-The scale pan P is opened at one side at the
proper moment by the hook S fixed to it being pulled by the arm R which is
worked by the gut passing over pulley and attached to a lover below moved by
the inner pin or stud on the large wheel-The scale is kept closed by a curved
spring as shewn, and the arm R is pulled back by a spring quite clear of the hook
on the scale. The contents of the scale pass down the funnel into the package
below. The packing part of the machine consists of a turntable a containing 4
frames b, b, b, b, for suj porting paper bags of suitable construction. These frames
are changeable according to size of packing required The arm c is hinged at d
and opens outwards to facilitate putting in and taking out of hag.
turntable stops, one bag is inserted at e, another fills under the scale
is fulded and seal d at -g is a bridge on which the side folders
thin flap mounted on an axle which is carried by a slide 2 moving in a
The lever moved by a cam l, pushes back the slide 2 and the flap
the package on the turntable to pass. The slide then runs back into position and
the Hap his turned down into a horizontal position by the crank which is raised
and depressed at the proper times by the two arms 4 and 5 which are worked by
projecting pins on the main axle-The depressing of the flap h turns in one side
of the paper bag The side folders advance in turn.
Each one moves
forward in an arc of a circle and therefore gradually draws in and folds its own
side of the bag against the vertical part of the bridge. The brush m, which is
kept saturated by gum from the internal reservoir n is brought down upon the
top of the bag and as the turntable revolves, the folded top of the bag is gummed
and the remaining side of bag is turned down on the gummed top by entering
under the weighed press p. The brush is pulled down by the cam and lever
arrangement 7. It rises by a spring when not required-The two side folders are
worked by the two levers 8 8 which are depressed by the pin 9 on the driving
wheel 10 and by means of gut passing over pulleys, move the levers which advance
the side folders-The latter is thrown back by springs. The crank i is worked by
the toothed wheel 12 which is turned two or three times by a sufficient number
of teeth 13 cast on the side of driving wheel. The valves D E are worked in and
out the former by the revolution of the stud near the circumference of the driving
wheel the latter by the stud near the centre of saine wheel. The driving wheel is
toothed and is driven by the smaller wheels attached to the handle or treadle a
shewn. One revolution of this wheel completes the operation of weighing and
When the
and another
slide, his a
groove i-
and allows

page_text: packing one parcel. I claim the automatic mode of weighing effected by the drop
of the beain of the scale and the automatic mode of foliing of the packago, all
substantially as illustrated and described and for the purposes set forth.
In witness whereof I the said Frederick Wheeler have hereunto set my hand
and seal this First day of August A.D. 1882.
K WITTELFR