Improvements in or connected with Weighing Machinery.
Year: 1893

page_text: Date of Application, 10th June, 1893
Complete Specification Left, 12th Mar., 1894-Accepted, 14th Apr., 1894
PROVISIONAL SPECIFICATION.
Improvements in or connected with Weighing Machinery.
I, JOHN SIBTHORPE POOLEY, of Albion Foundry, Manchester Street,
Liverpool, in the County of Lancaster, Weighing Machine Maker, do hereby
declare the nature of this invention to be as follows: :-
This invention has reference to the indicating or pointing mechanism of or con-
nected with weighing machinery, and has mainly for its object to provide means or
constructions by which errors as to the position of pointers or indicating devices
in relation to a weight index or scale are obviated or prevented, that is to say, by
this invention the exact position of a pointer or indicating device in relation to a
point or points of a weight indexing scale can be ascertained with accuracy, and
without error from all points of view, whether taken obliquely, or directly at right
angles to the face of the machine.
For convenience I will describe my invention in connection with a machine or
machinery wherein a revolving pointer or indicating device is used in connection
with a circular or arc weight-index or scale, and also wherein a registering or
recording pointer or indicator is used in connection with such scale to indicate after
a weight, say of an animal or other thing has been taken, and the load removed
from the machine, the weight of such load will be recorded by said pointer or
indicator; such recording indicating pointer being actuated from a distance
The weight
from the platform or other machine, by an attendant or person.
indicating pointer or index lies and works directly under or above the weight scale,
and is flush therewith so that when viewed obliquely or from any other aspect no
shadow is cast upon the scale, but the indicating point or part stands directly under
or above the indexing scale and in the same plane; thus the points or parts of the
weight indicating pointer or device which indicate or point to the weight on the
scale, and the scale itself, are concentric and in the same plane.
move,
In one form where the weighing machine pointer, and the recording pointer also,
and the weight scale is in duplicate in concentric arrangement, and fixed, the
weight scale may be recessed or stopped just within and without the scales thereon,
whilst the pointer or heads of the fingers, move or have their path directly within
and without these recessed or stopped parts, and lie in the same plane thereof.
These mechanisms or constructions may be used in connection with the type of
machine known as "Pit-bank Weighing Machines," and other kinds of weighing
machines wherever they may be applicable..
In cases wherein a recording pointer or indicator is used, motion may in some
cases be transmitted to it from any desired spot through shafting and bevel wheels:
where necessary part of this shafting may be arranged underground.
In some cases a recording mechanism or indicator constructed as described may
be used separately from the weighing machinery, the weight indicator being a
separate device.
T
1000
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.

page_text: Improvements in or connected with Weighing Machinery.
1, JOHN SIBTHORPE POOLEY, of Albion Foundry, Manchester Street,
Liverpool, in the County of Lancaster, Weighing Machine Maker, 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 reference to the indicating or pointing mechanism of or
connected with weighing machinery, and has mainly for its object to provide means
or constructions by which errors as to the position of pointers or indicating devices
in relation to a weight index or scale are obviated or prevented, that is to say,
by this invention the exact position of a pointer or indicating device in relation to
a point or points of a weight indexing scale can be ascertained with accuracy, and
without error from all points of view, whether taken obliquely, or directly at right
angles to the face of the machine.
I will describe my invention in connection with a' machine or machinery wherein
a revolving pointer or indicating device is used in connection with a circular or arc
weight-index or scale, and also wherein a registering or recording pointer or
indicator is used in connection with such scale to indicate, after a weight, say of an
animal or other thing, has been taken, and the load removed from the machine, the
weight of such load and record same by said pointer or indicator; such recording
indicating pointer being actuated from a distance from the platform or other
machine, by an attendant or person. The weight indicating pointer or index lies
and works directly under or above the weight scale, and is flush therewith so that
when viewed obliquely or from any other aspect no shadow is cast upon the scale,
but the indicating point or part stands directly under or above the indexing scale
and in the same plane; thus the points or parts of the weight indicating pointer
or device which indicate or point to the weight on the scale, and the scale itself,
are concentric and in the same plane.
In one form where the weighing machine pointer, and the recording pointer also,
move, and the weight scale is in duplicate in concentric arrangement, and fixed, the
weight scale may be recessed or stepped just within and without the scales thereon,
whilst the pointer or heads of the fingers, move or have their path directly within
these recessed or stepped parts, and lie in the same plane thereof.
These mechanisms or constructions may be used in connection with the type of
machine known as "Pit-bank Weighing Machines," and other kinds of weighing
machines wherever they may be applicable.
In cases wherein a recording pointer or indicator is used, motion may in some
cases be transmitted to it from any desired spot through shafting and bevel wheels;
where necessary, part of this shafting may be arranged underground.
In some cases a recording mechanism or indicator constructed as described may
be used separately from the weighing machinery, the weight indicator being a
separate device.
The invention, the nature of which is above specified, will now be described with
the aid of the annexed drawing, which illustrate a mechanism of or connected with
a weighing machine adapted to register or record the weight of an animal or other
thing which has been taken by the weighing machine, after the load has been
removed from the machine, in conjunction with the weight indicating device of the
machine, it being assumed that the weighing machine proper is disposed and acts

page_text: at some distance, which may be more or less according to circumstances, away from
the said indicating nechanism shewn in the drawing; in this arrangement shewn
the mechanism by which the weighing is effected is that commonly used in machines
known as "Pit-bank Weighing Machines," that is to say, a weighing machine
wherein the main weight employed, is partially submerged in and works in a liquid,
and in the act of weighing, is raised, more or less, out of the liquid, by the
mechanism, the said liquid being contained in a suitable tank or vessel.
Figure 1 of the drawings shews the mechanism in front elevation; whilst
Figure 2 is a cross section of same.
Referring to the drawings, the weight scale is provided or marked on an annular
ring a, mounted upon arms & carried by a hollow boss or journal mounted and
fixed in the head of the fixed supporting bracket c. The weight indicating pointer
is designated d, such pointer being carried by a spindle d' supported in bearings d
fixed on the hollow hub or boss, and connected with the weighing beam or steel-
yard through a chain or cord e attached thereto, and passing with one complete
turn over a wheel d³ on the spindle d', having a spiral rib upon it, between the
convolutions of which the chain or cord e passes, proper tension being put upon the
chain or cord by the lower weight e¹.
The weight recording pointer is designated h, the outer end of which is turned
round the outer edge of the ring a as shewn; its lower or inner end being attached
to a bevel wheel mounted loosely on the hub d', and meshing with a bevel
wheel mounted upon the vertical shaft i¹. This shaft is operated by an attendant
or other person from any convenient point or place, and at any distance required
away from the machine or mechanism.
The mechanism shewn in the drawings is mounted in a suitable case k, preferably
having a glass front k through which the ring a and scales upon it, and pointers,
are seen.
The face of the scales of or on the ring a, and the face of the ends of the
pointers hand d are all flush, in the manner above referred to, so that when viewed
obliquely or from any other aspect, no shadow is cast upon the scale, but the
indicating point or part stands directly under and above the indexing scale and in
the same plane therewith.
The ring a is provided with a portion at its inner and outer edges, namely, at a¹
and a³, behind the ends of the pointers d and h¹, forming recessed portions of such
ring, and constituting a background to the pointer ends by which they will be
thrown up better into view, and more easily seen: however these are not
essential.
As regards the weighing mechanism, m is the mass or weight, and n is the
containing vessel in which the liquid is contained, and within which the mass m
works; and o is the lever or steel-yard which is connected with the levers of the
weighing machine in any suitable known way. This mechanism m n o, and its
mode of action, is of the ordinary automatic indicating, or "Pit-bank Weighing
Machine" type, and therefore needs no further description as to detail, or construc-
tion or operation. The part of the lever o to which the chain or cord e above
referred to is connected, consists of the arc p, on the edge of which the chain or
cord e works, such are being formed at a radius, having as its centre the knife
edges 9, upon and about which the lever o moves.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The herein described improvement in or connected with weighing machines,
that is to say, a weighing machine wherein the face of the pointer or pointers is or
are disposed and work in the same plane as that in which the face of the scale or
scales is or are disposed; operating substantially as and for the purposes set forth.
2. The particular construction and arrangement of pointers and weight scales set
forth with reference to and shewn in the drawings, wherein an inner and outer

page_text: pointer work in connection with inner and outer weight scales, the faces of the
pointers and the scales all being in the same plane.
Dated this 10th day of March 1894.
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15, Water Street, Liverpool, Applicant's Patent Agents.