Weighing Machines, or other Purposes.
Year: 1885

page_text: Weighing Machines, or other Purposes.
I HENRY POOLEY, of the Albion Foundry 29 and 31 Manchester Street,
Liverpool, in the County of Lancaster Ironfounder, Engineer and Weighing
Machine Maker do hereby declare the nature of the said Invention for IMPROVE-
MENTS IN AND IN CONNECTION WITH STEELYARDS FOR WEIGHING MACHINES OR
OTHER PURPOSES to be as follows :---
According to my Invention there are provided in connection with a weighing:
machine two, or more graduated scales whose divisions being suitably pitched two,
or more different standards of weight, or codes, or values are presented and which
are capable of being determined, or indicated, by one steelyard bar and without,
the intervention of a revolving index bar.
The graduated scales are ranged upon the upper edge of the steelyard bar, and
the sliding counterpoise is capable of being dropped at its indexing end into the
notches or divisions of any one of the graduated scales which are placed parallel
to one another on the bar. I will now describe the mode by which I accomplish
the above named result. The long arm is graduated in for instance say tons
avoirdupois on the one scale and in divisions of say one thousand kilogrammes
each in metric weight on the other.
'
To facilitate the reading of weight I attach to the side of the steelyard a scale
turned up to the view of the weigher upon which I display clearly one above.the
other scales of readings corresponding with the deeply cut graduations on the
steelyard bar. The moveable sliding counterpoise is by preference made saddle
form. Ohe end of the counterpoise is furnished with a roller, taking into a
groove, or grooves placed upon the upper edge of the long arm of the steelyard,
and the other, or indexing end is provided with a tumbling knife edge, or edges.
The functions of this tumbler, I will describe presently.
A vertical handle is attached securely to the index end of the counterpoise; this
handle is made in two portions, one portion, the stock handle is fixed and the
other the shell handle is a lever whose short arm is cranked and furnished with
a roller, the joint, or fulcrum being below the base of the stock handle.
the handle is grasped for the purpose of moving the counterpoise upon the steel-
yard, the short or roller end is pressed against the edge of the steelyard, thus
79
When
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page_text: raising the knife edge, or "vee" of the counterpoise out of the notch within
which. it has been resting freeing it to take a new position on the graduated edge
of the steelyard upon which it slides freely by means of the rollers described above.
Upon relaxing the grasp from the handle in question, the counterpoise falls into
the division next below its "veed" indexing end.
To avoid the possibility of confusion in the readings of weight as given by any
one of the scales of graduation, I attach to the index end of the counterpoise
a pointer stepped to correspond with the horizontal variations of the lines of
parallel graduations on the turned up index plate. This pointer is specially
formed. For the purpose of "switching" the sliding counterpoise from one series
of notched graduations to the other I provide a "tumbler" having two, or more
knife edged projections, or vees" accurately pitched upon the periphery of the
tumbler, in such a manner that as the tumbler is revolved the knife edged
projections will take into their corresponding series of graduations formed upon
the edge of the steelyard, or weigh beam The tumbler is truly faced and turns
upon a trunnion which revolves within a truly bored hole at the index end of the
counterpoise. To securely lock the tumbler in any of the positions which it is
required to take upon the series of graduations on the steelyard bar I provide a
steeled bolt which is operated by means of a coiled spring automatically causing it
to enter one of the accurately pitched recesses cut in the inner face of the tumbler
The stepped pointer indicates on the turned up side plate the series of graduations
which has been engaged by the tumbler.
In order to determine the aliquot part of the major division of weight which
divisions are cut upon the long arm of the steelyard I secure a truly planed bar
to the side of the moveable counterpoise by means of studs. A slide moves freely
upon
the bar which slide is provided with a stepped pointer, or index which can
bé set opposite any division of the minor scale of weight, attached to the side of
the moveable counterpoise in position most convenient for reading. The stepped
pointer is pitched to correspond with the parallel lines of graduation marked upon
the minor scale.
The scales are placed one under the other and for improved legibility I set the
scales in steps that is to say the zero lines are not perpendicularly coincident but
set one behind the other.
This Invention is equally applicable to weighbridges, platform, or any description
of compound lever weighing machine.
By my Invention the sliding counterpoise index end can be switched from one
fixed scale of divisions, or notches to a second third, or more fixed series of notches
differing in pitch, or value from one another and although I preferably employ a
tumbler, I do not confine myself to the tumbler; the object may be effected by
levers, slides, or other means of engaging the notches with the moveable weight or
counterpoise.
I do not confine myself to the position of scales horizontally; they may be
inclined, or on one side, vertically, of the steelyard arm;
ידר
2.

page_text: Weighing Machines, or other Purposes.
I, HENRY POOLEY of the Albion Foundry 29 and 31 Manchester Street,
Liverpool, in the County of Lancaster, Ironfounder, Engineer and Weighing
Machine Maker, do hereby declare the nature of my said 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 relates to that class of steelyards of weighing machines which
are employed in connection with weighbridges platform and other like weighing
machines and has for its object to provide in connection with such weighing
machines means whereby two, or more different standards of weight, or codes, or
values may be presented and which may be capable of being determined or
indicated by one steelyard bar and without the intervention of a revolving
index bar.
The following is a description of my Invention in such full, clear and exact
terms as to enable any one skilled in the art to which it appertains to make and
use the same reference being had to the accompanying Drawings making a part of
this Specification, the Drawings being marked with letters and figures of reference
and like letters and figures on the Drawings being used to denote like parts
throughout the various views.
According to my Invention there are provided in connection with the steelyard
of a weighing machine two, or more graduated indexing scales whose divisions
being suitably pitched two, or more different standards of weight, or codes, or
values are presented and which are capable of being determined or indicated by
one steelyard bar and without the intervention of a revolving index bar. The
steelyard is provided upon its upper surface with two, or more parallel graduated
notched, or engaging scales, which correspond with the graduated indexing scales
hereafter described and which are provided with means whereby an engaging
device working upon a sliding counterpoise can engage with any one of the
engaging scales as may be required. This device I preferably construct in the
form of an alternating piece having "vee edges which fit into the grooves, or
notches of the engaging scales which are formed on parallel graduated bars on the
face of the steelyard.
The graduated index scale plate is preferably placed on the upper part of one of
the sides of the steelyard and is inclined upwards so as to be more readily and
easily seen and read. This scale plate is upon the long arm of the steelyard and is
graduated with the desired number of scales, placed, or cut one above the other
and which form the major unit scales, such as tons avoirdupois and thousand
kilogrammes metric weight, or other weights. The index scales are pitched upon
the scale plate preferably so as not to start in line vertically, thereby facilitating
the readings and avoiding confusion.
.1
A pointer having one, or more indicating points, or elements is attached to the
index end of the counterpoise. The indicating points, or elements of this pointer

page_text: are stepped one behind the other to correspond with the preferable differently
pitched scales upon the scale plate and the notched graduated bars on the surface
of the steelyard.
The aliquot parts of the major division of weight are determined by means of a
bar on which a pointer slides and which is attached to and at the side of the
counterpoise and an index scale plate which is also attached to the counterpoise.
The index scales of the minor divisions of weight are inclined and graduated in
substantially the same manner as the index scales of the major weights and the
pointer is also constructed substantially in the same manner as that previously
mentioned as will hereafter be seen.
Figure 2 is a cross section to a larger scale taken at ▲ ▲ Figure 2.
. Figure 3 is a front elevation showing a portion of the steelyard and the moveable
sliding counterpoise with the major and minor indexing scales in their preferred
position on the steelyard and counterpoise.
Figure 4 is a cross section taken at X X Figure 3.
Figure 5 is a cross section taken at Y Y Figure 3.
Figure 6 is a longitudinal section taken at Ż Z Figure 4.
Figure 7 is a side elevation. Figure 8 is a plan view and Figure 9 is an end
view of a lever device for switching the knife edge, or " vee" of the counterpoise.
Figure 10 is a side elevation. Figure 11 is a plan and Figure 12 is an end view
of a slide device for switching the knife edge, or vee "of the counterpoise.
Figure 13 shows a modification of the slide device shown at Figure 12.
£f
vee
Figure 14 is a side elevation Figure 15 is a plan view and Figure 16 is an end
view of a sector device for switching the knife edge or " of the counterpoise.
"In reference to the Figures A. designates a steelyard, or beam having two
indexing scales a and b and two engaging scales a¹ b¹. q q¹ are the ordinary knife
edges. The divisions of these scales represent different standards of weight
namely the scale a may be taken to represent tons and the scale 6 kilogrammes.
It will be seen that the commencement of the scales a and b are pitched one
behind the other and. not in line vertically thereby facilitating the readings and
avoiding confusion. The graduated indexing scales a and b are ranged upon the
upper edge of the steelyard bar A; and the sliding counterpoise B which slides on
the steelyard A is capable of being engaged at its indexing end with the notches,
or divisions of the scales a¹ and b¹ which are cut on the upper face of the steelyard
and which correspond with the divisions of the scales a and b. To facilitate the
reading of weight I attach the indexing scales a and b to the side of the steel-
yard A which is bevelled as shown at Figures 4 and 5 so that the scales are turned
up to the view of the weigher. These scales a and b display clearly the scales of
reading and correspond as before mentioned with the deeply cut graduations on
the steelyard engaging scales a¹ 61. The moveable sliding counterpoise B is by
preference made of saddle form, one side being cut out to clear the indexing scale
bar. One end of the counterpoise B is provided with a roller c which takes into a
longitudinal groove d formed upon the upper edge of the long arm of the steel-
yard A and the other, or indexing end of the counterpoise B is provided with a
tumbler, or equivalent device k having projections e with knife edges, or
vees" g
the function of which is hereafter described. A vertical handle f is securely
attached to the index end of the counterpoise B. This handle f is made in two
portions, one portion the stock handle f is fixed to the counterpoise B and the
other portion the shell handle f' is a lever whose short arm is cranked and
furnished with a roller fs the joint, or fulcrum f being below the base of the
stock handle f. When the handle f is grasped by the hand of the weigher for the
purpose of moving the counterpoise B, the short, or roller end f* of the shell
handle fiis pressed against the steelvard A so that the roller fs raises the knife

page_text: 4
edge, or vee" g of the counterpoise B out of the notch on the steelyard A with
which it has been engaged, thus freeing the "vee" g and counterpoise B to take a
new position on the graduated, or notched scale of the steelyard A upon which it
slides freely by means of the rollers c and f³ described above. Upon the weigher
relaxing his grasp from the handle f the counterpoise is lowered and its "vee" g
falls into and engages with the notched division next below it.
To avoid the possibility of confusion in the readings of weight as given by
either of the scales of graduation a and b I attach to the index end of the counter-
poise B a pointer i stepped, or formed to correspond with the horizontal variations
of the lines of parallel graduations on the turned up index plate having the
scales a and b. This specially formed pointer i is so shaped that it indicates on
both the scales a and b at the same time.
"
For the purpose of switching the sliding counterpoise B from one series a¹ or b¹
of notched graduations on the face of the steelyard A to the other the "vee
projection g is formed in duplicate on the pivotted tumbler k. The two knife
edged projections, or "vees" g being accurately pitched upon the periphery of the
tumbler in such a manner that as the tumbler k is revolved, or rocked the
knife edged projections g will take into their corresponding scale or series of
graduations, which are notched upon the face of the steelyard, or weighbeam A.
The tumbler k is truly faced and turns upon a trunnion 7 which revolves within a
truly bored hole at the index end of the counterpoise B. To securely lock the
tumbler k in any of the positions which it is required to take upon the series of
notched graduations on the steelyard bar A, I provide a steel bolt m with a round
nose which is operated by means of a coiled spring n which automatically causes
the bolt m to enter one of the two accurately pitched recesses p cut in the inner
face of the tumbler k. The stepped pointer i indicates on the turned up indexing
scales a and b the series of graduations as they are engaged by either of the "vee
projections g of the tumbler k.
In order to determine the aliquot parts of the main divisions of weight which
divisions are cut, or notched and form the scales a¹ and b¹ on the long arm of the
steelyard A. I provide a truly planed bars which I secure to the side of the move-
able counterpoise B by means of the studs s¹. Upon this bars there is a slide
weight t which slide weight is provided with a stepped pointer, or index u which
can be set opposite to any division of a minor scale of weight v which is attached
to the side of the moveable counterpoise B in a position most convenient for
reading, the scale v being the aliquot parts of the scales a and b on the steelyard.
The stepped pointer u is pitched to correspond with the parallel lines of graduation
marked upon the minor scale v, the upper divisions being the aliquot parts of the
metric scale, the lower divisions being the aliquot parts of the avoirdupois scale.
The scales a and b of the steelyard A and the scale of the counterpoise B are
respectively placed one under the other and for improved legibility the respective
scales are set in steps, namely the zero lines of the scales are not perpendicularly
coincident, but are set one behind the other.
I have described a certain class of steelyard, namely that which appertains to the
weigh bridge, but I would have it understood that my Invention is equally appli-
cable to steelyards of platform, or other description of weighing machines also
although I have particularly described my Invention in connection with two
standards of weight, namely avoirdupois and metric it will be understood that my
Invention is equally applicable to other different standards of weight, or codes, or
values and by multiplying the scales and the notched graduations more than two
standards of weight can be displayed.
By my Iuvention the index end of the sliding counterpoise B may be arranged
to be capable of being switched from one fixed scale of divisions or notches on the
steelyard to a second, third, or more fixed series of notches on the face of the steel-
yard differing in pitch, or value from one another. Although I preferably employ
a tumbler as shown in the Drawings, I do not confine myself to the tumbler as the
object of switching may be effected by levers, slides or other means of engaging the

page_text: "
vee g of
notches with the moveable weight, or counterpoise B. For example instead of
arranging the "vee" g of the counterpoise B upon a tumbler as shown at
Figure 4 it can be arranged according to the modification shown at Figures 7.8
and 9. In this case the knife edges g are in duplicate and are on the ends of the
levers kk which correspond with the tumbler k in Figure 4. These levers k k rock
on the fulcrums 7 and are so arranged that they can be thrown back as shown in
dotted lines in Figure 7. Thus either lever k can be thrown back and its knife
edge g disengaged, or it can be allowed through its knife edge g to engage with the
notches of its scale on the face of the steelyard, set screws being provided for
holding the levers k in position, or instead of using the tumbler as shown at
Figure 4, or the lever modification as shown at Figures 7. 8 and 9 the "
the counterpoise B can be arranged upon a lifting slide k as shown at Figures 10,
11, and 12, or upon a simple slide k as shown at Figure 13. In these latter cases
the slide corresponds with the tumbler k and has the same object namely to
switch the " vee g from the notches of one scale to the notches of the other scale
on the face of the steelyard, the slide k being mounted on the end of the counter-
poise B and being held thereto and fixed in the requisite position thereon by the
set screws ¹¹ which pass through the guide slot in the slide k and screw into
the end of the counterpoise B, or the " vee g can be arranged upon a sector
device k having radial movement from a central set screw so as to engage with
the notches of either of the scales a or b as shown at Figures 14. 15 and 16 the
sector k corresponding with the tumbler k and having the same function.
35
23
Instead of arranging the scales a and b at an incline on the side of the steelyard
arm as shown in the Drawings, they may be arranged vertically but I prefer to
arrange them at an incline as thereby the scales are more legible.
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
First The combination with a steelyard of two, or more graduated indexing
scales thereon arranged on one side of the steelyard substantially as described and
a pointer having a pointing, or indicating element, or elements substantially as and
for the purposes set forth.
Second The combination with a steelyard of two, or more graduated scales
thereon, arranged one over the other substantially as described and a pointer
having a pointing or indicating element, or elements substantially as and for the
purposes set forth.
Third The combination with a steelyard of the type herein described of two, or
more indexing scales arranged, or stepped one behind the other substantially as and
for the purposes set forth.
Fourth The combination with a steelyard and a counterpoise weight of multiple
stepped indexing scales such as a and b and a stepped sliding pointer such as i
substantially as set forth for the purposes described.
Fifth The combination with a steelyard of two, or more engaging scales thereon
and a device upon the counterpoise for engaging with such scales having an
element, or elements for engaging with corresponding provisions in the scales,
whereby the sliding counterpoise may be switched from one scale to another, or
others substantially as set forth.
Sixth The combination with a steelyard of two, or more engaging scales, an
engaging device for engaging with such scales an indexing scale and pointer
arranged substantially as set forth, for the major units of weight and two, or more
stepped scales and a sliding pointer, substantially as and for the purposes described
and for the minor units of weight.
Seventh The combination of the steelyard A of the scales ab arranged with an
upward inclination, the counterpoise B, the engaging device k engaging scales a¹ b¹
pointer scales v pointer weight t and its guide bar & substantially as set forth i
with reference to the Drawings.

page_text: 8
Eighth The combination with the counterpoise weight B of the scales v arranged
as set forth, the combined weight and stepped pointers tu and the bar a substan-
tially as set forth with reference to the Drawings.
Ninth The steelyard A. scales a¹ 61 and scales a 6 constructed and arranged sub-
stantially as set forth particularly with reference to Figures 1. 2 and 24 of the
Drawings.
Tenth In combination with the sliding counterpoise B, the engaging device, or
tumbler k having a trunnion (l) and a spring locking device consisting of a
spring (n) and bolt (m) substantially as set forth with reference to Figures 3. 4
and 6 of the Drawings.
Eleventh The engaging device constructed and operating substantially as set
forth with reference to Figures 7. 8 and 9 of the Drawings.
Twelfth The engaging device constructed and operating substantially as set
forth with reference to Figures 10. 11. 12 and 13 of the Drawings.
Thirteenth The engaging device constructed and operating substantially as set
forth with reference to Figures 14. 15 and 16 of the Drawings.