IMPROVEMENTS IN APPARATUS FOR WEIGHING WOOL
Year: 1881

page_text: LETTERS PATENT to Herbert John Haddan, of Kensington, Middlesex, for an
Invention of "IMPROVEMENTS IN APPARATUS FOR WEIGHING WOOL." A com-
munication from abroad by John Frederic Gebhart, of New Albany, Indiana,
United States.
COMPLETE SPECIFICATION filed by the said Herbert John Haddan at the
Office of the Commissioners of Patents on the 30th September 1881.
HERBERT JOHN HADDAN, of Kensington, Middlesex. "IMPROVEMENTS IN
APPARATUS FOR WEIGHING WOOL." A communication from abroad by John
Frederic Gebhart, of New Albany, Indiana, United States.
The present Invention relates to apparatus for weighing wool employed in
machines for feeding carding ongines.
Heretofore in these machines the scoop into which the wool falls from the wiper
or stripping apron in order to be weighed has been rigidly secured to the ends of
swinging levors, and hence if the wool falls into the scoop on the side that is next
to the machine it will require more wool to draw down the scales than it will when
the wool falls into tho scoop on the other side.
The object of the Invention is to arrange the scoop so that the same quantity of
wool will weigh the same irrespective of the side of the scoop into which the wool
falls, and it has for its further object to prevent the scoop from swinging or rocking
and to keep it from sagging at either end, as will appear.
In the Drawing, which shews only so much of an apparatus for feeding carding
machines as is necessary to illustrate my Invention,
Fig. 1 is an end clevation of the box or bin for the wool with my improvement
attached thereto.
Fig. 2 is a vertical section of the same taken transversely through the box and
Scoop, and
Fig. 3 is a front elevation of a portion of Fig. 1.
The letter A indicates the box in which the wool is first placed, and from which
it will in practice be lifted by a toothed apron, and then carried to the scoop of the
scales by a wiper or stripping apron (not herein shewn) as will be found in the
Patent before referred to.

page_text: -
The letter B indicates the scoop of the scales, which consists of a long trough
designed to be suspended in position to receive the wool from the stripping apron,
and to discharge the same after a quantity of a given weight has been collected
therein.
This scoop is pivoted to the ends of the levers C, C, which are fulcrumed about
midway of their length upon arins D, D, secured to the frame of the machine, the
said arms having notches in their upper ends to receive the fulcrum pins of the
levers.
The extent of vibration of these levers is determined by stops E; at the sides
thereof and upon the rear ends of the levers are arranged adjustable counter balance
weights F¹.
By this arrangement the same quantity of wool will weigh the same whether it
fall into the scoop at the side nearest to or farthest from the machines.
To the lower portion of the ends of the scoop are pivoted the short bars or
fingers F, and the inner ends of these fingers are hung upon a horizontal bar G, sce
dotted lines, Fig. 3, which extends across the breast or front of the machine.
The ends of this horizontal bar are supported in bearings H, which are connected
with the frame of the machine.
By this means the scoop will be kept from rocking, and also it will be provided
with additional supports, which will obviate any lowering or sagging of the scoop
at one end in case of an unequal distribution of the wool therein.
The scoop B may have its sides arranged to drop or open when properly filled, as
-is-usual-in-this-class-of-machines, but as this.forms no part of my present Invention
further description of the method of operating the scoop is deemed unnecessary.
It will be perceived that by reason of the peculiar devices for supporting-the-
scoop the said scoop will have a rectilinear vertical movement, and will not tip or
swing towards the sides or ends, consequently the loverage of the wool in whatever
position it may fall in the scoop will always be the same, insuring uniform weighing
of the wool.
What I claim and desire to securo by Letters Palent is,―
1st. In a machine for feeding carding machines, the scoop of the weighing scales
pivoted at its ends to two levers, the said levers being fulcruined about midway of
their length, substantially as and for the purpose described.
2nd. The combination with the frame of a machine for feeding carding machines
of a scoop of the weighing scales pivoted between tho ends of two levers, the said
levers carrying adjustable weights and having their fulcral pins seated in the
notched upper ends of arms secured to the frame of the machine and stops arranged
to limit the vibration of the levers, substantially as described.
3rd. The combination in a machine for feeding carding machines of the pivoted
scoop of the weighing scales with a horizontal bar extending across the breast of
the inachine, and having its ends supported in bearings and fingers hung upon said
bar and pivoted to the lower portion of the ends of the scoop, whereby the latter
is prevented from rocking, and also supported at its ends, substantially as
described.
4th. In a machine for weighing wool, the combination with the bar A of the
arms D secured thereto, tho levers C fulcrumed on said arms and provided with
weights F, the scoop B suspended from said levers, the bars or fingers F connecting
said scoop
with the bearings H and the transverse bar G, all arranged to operate
substantially in the manner specified.
In witness whereof, I, the said Herbert John Haddan, bavo hereunto set