Improvements in or relating to Price and Weighing Scales.
Year: 1898

page_text: Reprinted as amended in accordance with the decision of the Comptroller-General
dated the 21st day of February, 1900.
Improvements in or relating to Price and Weighing Scales.
A communication from THE COMPUTING SCALE COMPANY, of Dayton, Ohio, United
States of America.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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:―
The ordinary weighing scales such as are now commonly employed in barter and
trade, are adapted for the purpose of merely ascertaining, in pounds and ounces, the
weight of any given body, and in the type of such scales commonly known as platform
scales, the construction embodies essentially a pivoted beam provided with graduations
indicating pounds and ounces, suspended on knife edged pivots supported by a
suitable frainework; a platform upon which the body to be weighed is placed;
certain equalizing and multiplying levers by which the platform is supported; a
connecting rod by which connection is made between the platform levers and the
inner or shorter arm of the pivoted beam; a movable poise arranged upon the longer
or graduated arm of the beam and adapted to be slidden back and forth thereupon to
indicate in connection with the graduations total weights of articles balanced by the
poise; and a pendant at the extreme outer end of the beam for receiving additional
weights for balancing the bodies to be weighed, which exceed the balancing capacity
of the poise alone.
In ordinary barter and trade or in making sales based upon a money value, by the
use of these ordinary scales, after ascertaining the weight of a given article, by sliding
the poise along the beam and reading the graduations or indications with which it
registers, or if a supplemental weight is used, taking that into consideration also, it
is necessary to make a calculation, mentally or otherwise, to ascertain the value in
money of the ascertained weight of said article. This is usually done by multiplying
the ascertained weight by the price per unit of weight at which the material is sold.
In the class of scales, to which the present invention relates however, to wit, price
scales, or scales that indicate the money values of goods proportionate to the price per
pound or other unit of weight, the merchant in inaking his sales is saved the trouble
of making mental calculations of the total values, and to this end the scales are
constructed so as to be adapted to deal with varying units of prices per unit of weight,
instead of with a single fixed unit of weight alone and with varying total values in
money corresponding to the several units of price per unit of weight, instead of with
total weights merely, whereby the total value of a quantity of an article at any given
unit of price per unit of weight may be ascertained and read from the beam by
bringing the latter to a state of balance through the medium of a shifting poise in the
ordinary way and reading the graduation with which the poise registers, or if desired,

page_text: the weight equivalent of a sum of money desired to be invested in a given article at
any unit of price per pound, may be ascertained by shifting a sliding poise to the
indication or graduation indicating that value or sum of money and then placing upon
the platform a quantity of the article sufficient to bring the beam to a state of
balance.
To secure the variability of the price per unit of weight and at the same time
enable the total value to be read from the same set of graduations on the price beam,
it is necessary to vary the effective leverage of the beam itself, and consequently the
balancing value or power of the sliding poise and supplemental weights. This may be
accomplished by varying the distance between the pivotal center of the beam itself
and the point at which the load is applied thereto, either, first, by shifting the beam
together with its supporting bearings with relation to the draft rod through which
the weight of the load is cominunicated to the beam, or by shifting the draft rod
connection itself, allowing the beam to remain in relatively fixed position, the effect
of either of these adjustments being to vary the length of that arm of the lever
intermediate the pivotal support of the beam and the draft rod or connection with the
platform.
In order to produce an efficient and correct scale of this character, it is a fundamental
principle that the beam itself, independent of the draft rod or its connections, must
be in perfect balance and that the draft rod itself together with its connections and
the platform must be balanced up so as to exert no influence upon the beam except
when the scale is thrown out of balance either by placing a load thereupon (as an
article being weighed) or by shifting the poise on the beam or placing a supplemental
weight on the pendant. The reason for this is obvious, inasmuch as should the draft
rod and its connections exert any influence upon the beam by reason of the gravity
of the parts the adjustment of the draft rod with relation to the beam would vary this
influence in accordance with the well known laws of leverage, and would make it
impossible to secure a correct balance or set of graduations for indicating total values
which would be correct at the different adjustments of the draft rod and bean with
respect to each other.
Bearing the foregoing in mind and referring to the accompanying drawings, it will
be understood that.
Figure 1 is a perspective view of a platform scale which class is adopted as the
most convenient one in connection with which to illustrate the present improve-
ments.
Figure 2 is a detail sectional elevation showing the price beam, weighing beam,
carriage carrying the price beam and cap of the scale frame upon which the carriage
travels.
Figure 3 is a vertical cross section on the line 3-3, Figure 2, looking towards the
right.
Figure 4 is a similar section on the line 4-4, looking towards the left.
Figure 5 is a similar section upon the line 5-5 looking towards the left.
Figure 6 is a horizontal section on the line 6-6 looking downwardly.
Figure 7 is a detail longitudinal section of the carriage locking bar.
Figures 8 and 9 are detail sectional views at right angles to each other taken
through the head block, beam and draft or steel-yard rod.
Figure 10 is a detail section of the poise, showing the locking mechanism therefor.
Figure 11 is a perspective view of the base showing the platform removed, the
base broken away, and the platform spider or skeleton frame as though made of
transparent material in order to show underlying parts.
Figure 12 is a vertical section through the base showing the arrangement of the
swivel, the platform levers being omitted.
Figure 13 is a top plan view of one of the supplemental weights showing the
markings thereon to indicate the total value and also to indicate weight when used
in connection with the weighing or tare beam.
The type of scales which I have adopted as the most convenient type in connection
with which to illustrate my present improvements is what are known as platform

page_text: counter or grocer scales, although it will be understood that many features of the
invention may be used in connection with other types of scales, and hence I do not wish
to be confined specifically to this particular type. In the scale illustrated, the base
which is adapted to rest upon the platform or counter, is indicated by the letter A
and it is in the form of a housing to contain the multiplying levers or platform levers
to be hereinafter referred to specifically, and from this base, columns A¹ extend
upwardly and support at their upper ends a cap A³ having tracks, a, upon its upper
surface upon which tracks the carriage B for the price beam is adapted to travel back
and forth. The carriage B is provided with a price bean stand B₁ and it is held in
place and guided by a rod a', Figure 3, carried by the cap, Figure 2, and embraced by
lugs or projections b on the carriage.
Beneath the cap A³ and suspended upon knife edges in the bracket A³ is an ordinary
weighing beam or tare bean C having a bar c graduated in the ordinary units of
weight (pounds and ounces for instance) and provided with a sliding poise or tare
weight and in addition with a pendant or tare counter-poise C adapted to support
when desired any one or a number of supplemental weights C3, shown in Figure 1, as
resting upon a rack or support C projecting upwardly from the base A between the
columns. From the shorter arm of the beam C a steel-yard rod E extends
downwardly through a tubular extension E' on the base and is adapted to connect at
its lower end with the rearwardly extending arm F of one of the platform levers F.
There are two of these platform levers shown in Figure 11 of the drawings, one F¹
at the front of the base A, the other F2 at the rear of the base A and both
supported upon corner loops of suspended from the base in the ordinary manner. In
addition, the levers F1, F2, carry knife edges f¹, upon which knife edges, downwardly
extending legs on a skeleton frame or platform sub-base G are adapted to rest. The
platform levers F1, F2, are centrally connected by a loop and knife edges 2 and when
the parts are in the position shown in Figure 11, they are adapted to receive the
platform F3, Figure 1, and to support the same for the reception of goods or articles
to be weighed or the price of which is to be indicated.
In the preferred construction, pivoted bearing blocks gl, of hardened material are
mounted within furcations in the lower ends of the legs y for co-operation with the
knife edges f, which bearing blocks are located a sufficient distance above the lower
ends of the arms to prevent any possibility of the knife edges entering the joints
between the bearing blocks and arms in assembling the parts. In this preferred
construction also the platform sub-base or skeleton frame is provided at each corner
with a relatively small levelling projection g² which inay be filed off to a greater or
less extent in order to secure a perfect set for the platform and the platform is
prevented from independent lateral movement by the projections g³ which enter
apertures properly formed therein. The platform sub-base or skeleton frame is
held against lateral movement longitudinally of the knife edges by checks g of
ordinary construction.
To balance up the weight of the platform levers, steel-yard rod and parts connected
therewith, to be presently described, the pendant or counter-poise C² is preferably
made heavy or provided with an internal chamber for the reception of shot or
like material as in the ordinary construction and in order to secure the final
adjustment of these parts, a balance ball H is mounted upon a screw-threaded
rod on the longer arm of the weight or tare beam C so as to be capable of an
accurate adjustment longitudinally thereon.
The direct connection between the steel-yard rod E and the beam is formed
by a steel-yard rod loop e formed above the connection with the knife edges on the
beam into the fork at e¹ for the pivotal attachment of the upper end E³ of
the steel yard rod, which upper end forms the connection between the lower
portion of the steel-yard rod or platform levers and the price beam before referred
to.
This price beam is lettered K and is mounted on knife edged bearings in the beam
stand B¹ so as to move longitudinally with the carriage and in its preferred con-
struction, especially with a view to producing a scale which will be relatively narrow,

page_text: it is composed of a series of substantially parallel graduated beams with a goose-
neck at one end from which a pendant, or as I shall terin it, a value
counter-poise 1, is suspended and at the opposite end with a chamber 2 in which a
greater or less quantity of material may be placed to raise, or lower the center of
gravity of the beam itself and thereby regulate its sensitiveness.
At this point it is well to state that the sensitiveness of a beam depends upon the
position of the center of gravity with respect to the pivotal center of the beam, thus
if the center of gravity be too high, a balance cannot be secured because the beam
when turned or inclined, in one direction or the other, will tend to stay in such
position and is said to be too sensitive and on the other hand if the center of gravity
is too low, the beam will be "loggy" in its action and will not respond to light
weights placed upon the platform to a sufficient degree to give proper indication.
Upon one of the bars of the beam preferably the lowermost bar K¹, is movably mounted
the "price poise" or head block L, this head block or price poise L being provided with
knife edges which co-operate with arms E2 of the forked upper ends of the steel-
yard rod. The bearings in these forked ends are preferably substantially circular and
the knife edges are double knife edges so as to produce little friction when operating
either to pull the beam down or push the same upwardly as the case may be, and it
will be particularly noted in accordance with the opening statement herein, that the
price beam is balanced up independently of the weight of the head block or price
poise, that is to say the weight of the bead block or price poise is borne by or
compensated for by the steel-yard rod and counterbalancing connections connected
therewith. Thus the weight of said bead block or price poise does not operate to throw
the price beam out of balance when shifted from one point to another thereupon.
The upper edge of the bar K¹ of the price beam K is preferably notched for co-
operation with projections on the price poise and said bar is provided with
graduations which in the scale illustrated, are numbered from 1-to 7-1 pence
on the lower edge of the bar and from 8 pence to 6 shillings on the upper edge of
the bar. These graduations indicate prices at that many units per unit of weight, or
more properly from 1½ pence to 6 shillings per pound, and when the beam is shifted
through the head block or price poise to a position where the indicating points
register with any desired graduation, the scale is in adjustment for indicating value
of goods at that rate per pound. In order now to give the total value of any of these
rates, the upper bars K² of the beam K are also graduated with two sets of gradza-
tions running from 0 to 2 shillings 6 pence and fro.n 0 to 10 shillings respectively,
the upper set of graduations being adapted to be read in connection with the upper
set of graduations upon the price bar of the beam and the lower set of graduations
to be read in connection with the lower set of graduations upon the price
bar of the beam. In order to facilitate the reading of the proper row of
value graduations and figures with the proper row of price per pound graduations
and figures, the rows of graduations and figures near the lower edges of the barj K¹
and K are of a color different and readily distinguished from the color of said bars,
while the rows of graduations and figures near the top edges of said bars are of a
color different and readily distinguished from the color of said other rows of gradua-
tions and figures; for example, the graduations and figures on the lower edges of
said bars are in white and those in said upper edges are in red; then if the price per
pound be found in the white row of figures, the value will be indicated by the value
poise in the white row of value graduations and figures. It will thus be seen that the
young and inexperienced can readily read the proper graduations and see that they
are getting their money's worth of goods, as well as the price per pound they pay
therefor. The sliding poise K³ is mounted upon the hars K² and is provide i with
pointers which register with the said sets of graduations and indicate the value of
articles placed upon the platform at the rate indicated by the value poise or head
block.
To limit the movement of the beam and provide a convenient means for indicating
when the beam is moved, the price beam is provided with an indicating needle M
which works between the limiting stops M' on the bracket M² projecting up through

page_text: the carriage B, and in order to lock the carriage in its adjusted position and to
permit of its convenient and ready movement back and forth to bring the head block
or value poise into registry with any desired one of the price graduations, the
following mechanism is employed.
A lock bar N preferably of rectangular cross section, as shown in Figures 3 and 5,
is journaled at its ends in the carriage B and provided along one of its edges (Fig. 2)
with teeth or serrations which co-operate with a fixed tooth n¹ on the cap or
stationary part A³ of the frame to lock the carriage in its adjusted position, and when
it is desired to release the carriage the handle N¹, mounted on one end of the locking
bar N, is turned towards the front of the scale, thereby turning the locking bar N
out of the engagement with the fixed tooth 1, when the handle itself may be utilized
as a hand-hold in moving the carriage together with the price beam back and
forth until the price poise is brought into registry with the desired indication.
The rotation of the locking bar N is further utilized to elevate and support the
price poise together with the steel-yard rod and its connections and to support
the price beam in horizontal position so as to permit it to slide through the price
poise freely as follows. A pair of relatively long links 0, 0, are pivotted to the cap A"
at o and at their free ends they are similarly pivoted to and support a poise lifter ()¹
carrying two poise lifters posts 02 which extend up into position for their tapered
upper ends to enter correspondingly formed apertures o² in the lower end of the
price poise. The poise lifter links are guided in their vertical movements by guides o
mounted on a cross piece in the cap a and they are raised and lowered by means of
an adjustable bracket 03 mounted upon the upper link and having an
projecting over the locking bar N in position to cooperate with one of its edges when
arm 0+
the bar is turned up to the position indicated by dotted lines in Figure 5. The edge
of the locking bar which co operates with the bracket on the lifting link is preferably
made flat, and as a consequence, as said bar assumes the position shown in dotted
lines in Figure 5, there would be a slight lowering of the price poise lifting
mechanism and this is taken advantage of in order to interpose a support for said
mechanism which will carry the weight of the same, leaving the locking bar of the
carriage entirely free from the bracket, and to accomplish this, a supporting pawl (5
is pivotally mounted on one side of the bracket in position to cooperate with the
edge of the locking bar when the bar is in its horizontal position or to swing in over
a fixed rest 0 on the cap u, when said bar is turned up to the position shown in
dotted lines. The adjustment is so made that the end of this supporting pawl will
pass in over the fixed support at the moment when the lifting mechanism is at its
highest point, or resting on the corner of the locking bar, and consequently no
dropping of the lifting mechanism can then take place as the locking bar continues
its movement and brings its flat edge under the bracket. In order to avoid the use
of a spring for this supporting pawl it is preferably made in the form of a bell crank
lever pivoted at its center and with one of its arms weighted and tending to turn it
into its operative position the moment such movement is permitted by the turning
of the locking bar.
To secure an accurate adjustinent of the bracket vertically with relation to the
lifting link so as to ensure a correct action, the bracket is preferably made with a slot
for the reception of said link with adjusting screws of cooperating with the top and
bottom of the link respectively and a locking screw o³.
The upward movement of the poise lifter raises the poise until the projections
thereon are free from the notches or serrations in the beam and also serves to support
hat end of the beam against downward movement. In the preferred construction
he poise L itself is provided with an anti-friction roller m in its lower end mounted
n bearings in the block m¹ held upwardly in the poise by a spring m². The roller
enters a longitudinal slot in the under edge of the beam, thereby supporting the
eam upon a rolling bearing and in addition said roller performs the function of
entering the beam and price poise with relation to each other whereby the poise is
revented from rubbing against the faces of the beam and destroying the surfaces or
raduations thereon.

page_text: To support the opposite end of the beam while the carriage is being shifted a
secondary lifter composed of a horizontal lifter m is pivotally connected at one of its
ends to the carriage and its opposite end supports a vertically movable rod m³, the
upper end of which when the rod is elevated engages the under edge of the beam and
supports the same in horizontal position. This secondary lifter is also raised and
lowered by the movement of the locking bar N, for which purpose a cam mo is
mounted on the inner end of said locking bar and is adapted in its rotation to co-
operate with a projection m² on the secondary lifter to raise the same as shown clearly
in Figure 4.
As a convenient means for returning the locking bar to its locked position auto-
matically, a torsion spring P is connected to its inner end within the carriage and
held in its adjusted position of tension by means of a square stud P' passing through
the end of the carriage as shown clearly in Figure 2.
The beam which is primarily for the purpose of weighing in pounds and ounces
or for compensating for tare is provided with a sliding poise C¹ hereinbefore referred
to and, inasmuch as when this poise has been moved to balance up for tare, it is
desirable to secure the same in such adjusted position, I have provided a means for
locking it in its adjusted position which means will not interfere with the ordinary
uses of the poise or in any way complicate its accurate adjustment upon the beam.
Broadly stated the means which I employ is a snap lock or one which may be snapped
into action for holding the poise at any desired position of adjustment or snapped out
of operative position so as to permit the poise to be slipped along the beain in the
ordinary manner to secure an accurate balance. The under side of the bean is
preferably notched and in the lower edge of the poise (see Figure 10) I mount two
sliding pins Q, Q1, the pin Q being provided at its ends with a relatively small roller
which will engage the teeth in the lower edge of the beam and the other of which Q¹
is pressed outwardly by an internal coiled spring q. The two pins are connected by a
centrally pivoted dog or lever q¹, whereby when one of said pins is pressed inwardly
the other will be forced outwardly and vice versa. To hold the pin Q in or out as the
case may be, a transversely arranged spring pin Q is also mounted in said poise and
adapted to co-operate with notches or recesses q² in the pin Q. The spring q³ which
holds the pin Q up to its work is preferably relatively weak and will permit the pin Q²
to retreat when sufficient pressure is brought to bear upon either of the pins Q or Q¹,
but at the same time it will hold the pins in their adjusted position. If the pin Q₁
is pressed inwardly, the poise will be released and is free to be moved along the beam
until the desired adjustment is reached, then if pressure be brought to bear upon the
pin Qit will be forced inwardly and its inner end engaging with the teeth on the
lower edge of the beam will lock the poise in such position of adjustment. Where
the teeth are made relatively fine the roller will permit the poise to be adjusted
longitudinally of the beam by the application of considerable pressure but this
mode of operation is found in practice not so desirable inasmuch as it makes it more
difficult to secure an accurate balance.
The base of the scale is provided with a means whereby when the scale has been
set upon the counter or other surface adapted for its support it may be swung
around so as to face in any desired direction by means of a swiveling arrange-
ment. For this purpose the lowermost portion of the base lettered A2 and which
may be made either integral with or separate from the base A, is provided with
a circular track R beneath which is the cooperating supporting frame S having a
similar track $1 and centrally connected to the base A2 by a central .bolt or
screw R¹. The supporting frame S is provided with four, more or less, leveling
screws or projections which may be adjusted in or out to a greater or less extent
for securing the accurate level for the scale base and between the two tracks R
and S there is arranged a series of anti-friction rollers T. These rollers T are
preferably mounted upon the ends of radial arms T¹ forming part of the spider which
is held in its central position and with the rollers between the tracks R and S by the
center-pin or bolt before referred to, When rollers T are not used the tracks R & S
bear together,

page_text: With such an arrangement the scale may be set up and adjusted accurately to
level, even on an irregular surface and when once adjusted, it may be turned to any
convenient position for use and in order to prevent it from swinging freely when so
desired, a lock is preferably provided which will hold it normally in its adjusted
position but which will yield to relatively strong pressure and allow the scale to turn.
For this purpose a supporting frame S is preferably provided with a notched
peripheral extension S2 and the frame A2 is provided with a spring pawl S³ adapted
to cooperate with said notched surface but to yield when sufficient pressure is
exerted so as to permit the frame A² and scale to turn independently of its
supporting frame. For the purpose of throwing the spring lock or detent into
or out of operative position, a cam S is journaled in the frame A² or in an off-
set thereon and a handle S projecting through to the outside of said frame is
provided for turning the said cam into position for holding the spring detent in
operative relation to the serrated surface ou the supporting frame or to permit
said detent to retreat from said surface and allow the two frames to rotate freely
upon the anti-friction rollers provided for that purpose.
The weights or as I shall term them supplemental weights used in balancing up
goods of greater weight than can be balanced by the sliding poise or poises alone
are preferably made as shown in Figure 13, that is to say, the face of each weight is
divided by beads or ribs into three panels, each of said panels being adapted to bear
a mark corresponding to the value of the weight in money or in pounds and ounces,
as the case may be.
Referring to the figure last mentioned, it will be seen that in the panel above the
slot for the pendant stem, there is a money value 10 shillings which corresponds to
the value of that weight when on the counterpoise and read in connection with the
set of price graduations at the top of the price bar and below said slot there is a money
indication of lower value 2 shillings 6 pence to be read in connection with the price
graduations along the bottom of said bar when on said counterpoise while at the
end of the slot, the panel bears an indication of pounds, this indication to be read in
connection with the weight or tare beam and only when on the counterpoise C² for
indicating weight alone."
From the foregoing description of the mechanical arrangement and construction
of the parts, the operation of the scale will be readily understood from the following
examples.
Assuming that the scale in balance with the sliding poises at the extreme left
of the beams, should it be desired to determine the value of an article in bulk,
say a roast of beef, it is placed upon the platform, the handle at the left end of
the carriage is drawn completely down and the carriage together with the beam is
shifted until the price per pound at which the beef is sold registers with the
price poise, when the handle is released and returns automatically to its upright
position, thereby locking the carriage in its adjusted position, freeing the beam
and clamping the price poise at that indication. The value poise is then slidden
along the price bearn until the scale is balanced when it will be found that the
poise registers with a value graduation corresponding to the exact value of the
beef.
Again, suppose that it is desired to purchase two shillings worth of an article
(sugar for instance) which is sold at any of the rates within the capacity of the
scale say at four pence, the handle is drawn down, the carriage shifted until the
price poise registers with the graduation indicating the price per pound four pence,
Then the value poise is slipped along the price beam until it registers with the
ndication of 2 shillings, then the sugar is poured on the platform or in a paper
bag placed there for its reception until the scale balances, when it will be
ound that the exact quantity of sugar for that money value has been placed on
he scale.
If the weight of the article or the value thereof in either of the foregoing
xamples is greater than the capacity of the poise to balance the same,
ecessary number of supplemental weights are placed upon the value counter poise
the

page_text: or pendant and the final balancing of the scale is secured by sliding the value
poise as before and the additional value of the supplemental weights is added to
the value indicated by the poise to give the total value.
Again, should it be desired to weigh in money value, a quantity of material which
must be placed in a receptacle (a crock or jar for instance) the jar or crock is placed
upon the platform and the tare poise is moved along the tare beam until the scale
is in balance, when the tare poise may be locked in adjusted position and the price
beam set as before at the desired rate per pound and results indicated in exactly
the same manner as in either of the foregoing examples.
Should it be desired to weigh in pounds and ounces only, the price beam and
carriage need not be taken into consideration at all, as the price beam is always
in balance with itself, and hence regardless of its adjustment, it. does not effect
the accurate operation of the other portion of the scale, but the readings may be
taken from the tare beam or weighing beam as in any ordinary weighing scale.
The supplemental weights in this instance are placed on the weight counter-poise
or pendant when the particle to be weighed exceeds the capacity of the tare
poise to balance the same.
Having now particularly described and ascertained the nature of this said
invention, and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is :-
1. In a price scale, a price beam and price poise movable relatively to each other
and connections between the price poise and platform, in connection with a price
poise lifter, independent of the platform connection and having bearings separated
from each other in the plane of relative movement of the price poise and beam.
2.-n-a-price-seale;-the-relatively-movable-price beam-und-poise--for--determining
by their-relative-positions-the-price-per-unit-et-weight-of-an-article, with-means-for
holding-said-beam-horizontally-out-of-engagement-with-the-price-poise-while--the
twe-are-being-shifted-with-relation-to-each-other-and-for-engaging said price poise
with the beam-when brought-to-the-proper-position-of-adjustment.
3. The use-in-a-price-scale-of-a--price-beam-having-a-notehed-or-serrated-edge-in
connection-with-a-price-determining poise having teeth-cooperating with said-notched
or-serrated-edge-and-an-anti-friction-roller-for-facilitating-the-relative--movement-of
the-price poise.
4. 2. In a price scale the combination with a relatively movable price beam and
price poise and connections between the said price poise and platform, of a poise
lifter independent of the platform connection having separted poise lifter posts
cooperating with bearings in the price poise on opposite sides of the platform
connection whereby tilting of the price poise in the plane of relative movement of
the poise beam is prevented.
3. In a price scale, the combination with a relatively movable price beam and
price poise and connections between said price poise and platform, of a vertically
inovable price poise lifter independent of the platform connection and cooperating
with the price poise below the plane of the bottom of the beam, substantially as
described and illustrated in the accompanying drawings.
6. 4. In a price scale, the combination with a relatively movable price beam and
price poise, said beam having a slot or recess in its lower edge, of an anti-friction
roller mounted in the price poise and working within said slot or recess as set forth.
5. In a price scale, the combination with a relatively movable price beam and
price poise, said beam having a slot or recess in its lower edge, of a spring pressed
anti-friction roller mounted in the price poise and working within said slot, or recess,
as set fortb.
6. In a price scale, the combination with a relatively movable price beam and
price poise, said beam having a slot or recess in its lower edge, of an anti-friction
roller mounted in the price poise and working within said slot or recess with means
for lifting the price poise to support the beam on said roller; substantially as
described.

page_text: 7. In a price scale, the combination with the base, the carriage movable
longitudinally thereon, the price beam fulcrumed on the carriage, the price poise on
the beam and the connector for the platform connected with said price poise, of the
links pivotally mounted on the base, the poise lifter carried by said links and having
posts cooperating with the under side of the price poise beneath the beam on each
side of the platform connector with means for raising and lowering said poise lifter.
10. 8. In a price scales, the combination with a notched beam having a toothed
or serrated edge, of the poise sliding on said beam and the snap lock carried by the
poise and adapted to be automatically held either in its operative or inoperative
position.
H. 9. The use in a scale having a beam with a notched or serrated edge, of a
poise having a roller cooperating with said notched or serrated edge and a spring for
holding said roller in engagement therewith.
12. In-a-price-seale embodying a platform
with-platform-levers-for-supporting
the same, a-weighing-beam-connected-with-said-platform-levers-and-a-price.beam
also-connected-with said platform-levers-with-means-for-varying the effective-
exerted-by-said-beam,-graduations-for-determining-the-degree-of-variation
leverage
in the leverage-of-the-price-beam-and-indicating rate-prices-and-graduations-on-said
price-beam-indicating total values-with a sliding-poise-for-registering-with-said-total
value-graduations.
13. 10. In a price scale, a price beatn, price poise adjustable with relation thereto,
price poise lifter, and links on which said price poise lifter is mounted, a lever m*, a
rod mo, and means for raising said lever and the price poise lifter to support the
beam in horizontal position; substantially as described.
14. 11. The use in a scale of a swivel base composed of a top and a bottom plate
pivoted together by a central bolt and circular tracks on the adjacent faces of said
frames.
15. 12. The use in a scales of the swivel base with interposed anti-friction rollers.
16. 13. The use in a scale of a swivel base composed of a top and bottom frames
held together by a central bolt, circular tracks on the adjacent faces of said frames,
anti-friction rollers interposed between said tracks and a detent for holding the
frames in their relatively adjusted position; substantially as described.
17. 14. The use in price and weighing scales of a supplemental weight in combina-
tion with high and low value graduations K2 upon the beam K substantially such as
shown and described.
18. The use-in-a-price-seale-of-a-beam-graduated-and-numbered-with-double-rows
of price-and-value-characters-in-different-colors.
19. The-use-in-a-price scale-of-a-beam-substantially-such as-shown and described.
'
Dated this 20th day of April 1800
BOULT & WADE,
Agents for the Applicant.