Improvements in Weighing Machines and Apparatus for Attaching like, to Ascertain the they may to Carts and the Contain at any Time whened.
Year: 1886

page_text: Date of Application, 11th June, 1886
Complete Left, 18th Feb., 1887.
Complete Accepted, 29th Mar., 1887
Improvements in Weighing Machines and Apparatus for Attaching
like, to Ascertain the Weight they may
to Carts and the
Contain at any Time when Loaded.
I WALTER YATES Joiner & Builder 232A New Bank Street Gorton near Manchester
Lancaster do hereby declare the nature of this invention to be as follows:-
For an illustration of how I propose to carry out the said improvements. Say I
use a spiral spring about three inches in length, and of a strength, that the weight of
one Cwt. will compress it down one and a half inches. This spring is placed in a
cylinder in a vertical position, and a piston fitting the cylinder is placed on it with a
rod attached passing downwards through the centre of the spiral spring and coming
out through an opening in the bottom of the cylinder to be attached to apparatus I
shall further on describe. Connected to the top of the piston by an arm that works up
and down through a slot or grove in one side of the cylinder is a rack, that moves
downwards as the spring is compressed. This rack turns a pinion wheel calculated io
revolve once round on the spring being compressed one and a half inches, from this
pinion clock work motions are imparted to other wheels and pinions, calculated to
indicate tons: cwts.: qrs. and lbs. on dials, similar in form to gas meter dials. The
weight being given as one Cwi. required to compress the spring one and a half inches,
it is obvious, that with accurate workmanship that amount of compression of the spring
represents in weight one Cwt. This arrangement is then fixed on the top side and in
the centre of the axletree of the cart the piston rod extending through the axletree
of the cart to the underside and the dial facing to the back of the cart, so as to be read
by looking under the cart at the back.
I now proceed to explain what is the most distinctivo feature of this invention as
applicable to carts and other weighing machines. It is the method I employ with
levers to manifoldly increase the measure of indication from a light spring. Viz.-
In a slot or fork formed in the end of the piston rod extending to the underside of the
axleiree. I attach on one centre or pin two swing or swivel motion to avoid friction
and allow free motion to two levers I employ which bear on and pull down the same.
These two levers bearing on the swivels at one end, are extended horizontaly right and

page_text: left hand along underneath the axletree any given distance required for convenience of
construction: The fulcrums which these levers rest upon, are fixed underneath the
axletree at equal distances from the centre of the piston rod. The levers bear on
the spring by means of the piston rod at one end, and at the other rest on the
fulcrums.
To increase the measure of indication of the spring, I now graduate back along
the levers from the centre of the piston rod towards the fulcrums. Say for example
I move the weight, bearing on the levers with a knife edge, back half way towards the
fulcrums, this reduces the weight on the spring one half, so on, on each centre removed
from the last point towards the fulcrums. First division or centre one half. Second
centre one quarter. Third centre one eighth. Fourth centre one sixteenth. Fifth
centre one thirtysecond, so in moving back to the fifth centre, increasing power of
indication, Thirty-Two times as against one on the direct bearing on the spring. The
dials on the face are graduated to indicate according to the strength of the spring and
the centre used.
Another feature I claim in this invention is the method I use to put the weight to
bear on the levers so as to give effect to this invention as applied to carts &c. Viz.-
Underneath the cart bottom, through bushes in two frames further on named, is fixed
a shaft running parallell over the levers before named and prepared at one end, for a
double arm crank handle for the purpose of turning the shaft, one arm of this handle
passes between the spokes of the cart wheel on to the shaft, the other arm being out-
side the wheel forms the handle for turning the shaft. On the shaft is fixed two
mitred and toothed wheels, which on the shaft being turned, work in and turn,
two mitred toothed wheels in frames before mentioned which are fixed vertically
one over each lever at the points where the weight is to rest when in the act of
weighing. On the mitred wheels that work in the frames, are arms pointing down-
wards, in which are formed square sockets into which are fitted screws, squared along
one end the length required to reach the bottom of the sockets in which they are
loose. The bottom rails of the frames are tapped for the screws to work in. When
the shaft is turned the mitered wheels revolving, cause the screws with the square ends
entering into the square sockets, to move downwards in the frames on to dish headed
pins fixed in position through the axletree and bearing on the levers with a knife edge,
thus putting the weight of the body of the cart and contents on to the levers at the
weighing points.
In weighing the wheels of the cart require to be scotched, and the load adjusted to a
balance or to bear very slightly on the legs of the cart shafts. Any inequality in
loading the other, or sideway, the double levers compensate for and equalise the
pressure on the spring of the indicator. The crank handle outside the cart wheel is
turned until the body of the cart is lifted clear off its ordinary bearings.(provision
being made for this in spring carts by a little extra play being allowed at the back end
of the cart spring, so as to avoid the reaction or bearing down of the cart springs.
In box carts the play required between the axletree and the cart body is provided for,
by vertical standards or arms securely fixed on to the axletree, which extend into
sockets fixed underneath the cart a cotter bar is arranged for loosening and locking it
down.) on the axletree and rests on the levers bearing on the spring of the indicator,
where the weight can be read off. The tare is taken in the same manner before
loading or after discharging the load.
Dated this Tenth day of June 1886

page_text: Improvements in Weighing Machines and Apparatus for Attaching
to Carts and the like, to Ascertain the Weight they may
Contain at any Time when Loaded.
I WALTER YATES, Builder of 232A New Bank Street, Gorton in the County of
Lancaster, 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-
In order that the same may be clearly understood, I annex hereto a sheet of
Drawings illusterative thereof.
Fig. 1. in the annexed Drawing shews the section of a cart body and the axletree
with my improvements applied thereto. Fig. 2 and 3 are detatched sectional views of
paris on vertical lines A-B and CD drawn to a larger scale.
On the centre of the axletree a. a. Fig. 1. is fixed a spring balance (in which I do
not claim any novelty of construction) with the dial b, facing to the back of the cart.
The connecting rod c, Fig. 2, acting on the spring is extended through the axletree to
the underside, and in a fork or slot formed in the end of the rod are attached hanging
on one centre or pin two swivel motions d. Fig. 2 Bearing and resting on knife edge
bars or pins in these swivels, are two levers e. e. Fig. 1. extending right and left hand
and resting at the other end on fulcrums f. f. Fig. 1. Underneath the cart bottom
through bushes in frames g. g. Fig. 1. is fixed a shaft h. h. Fig. 1 running paralell
over the levers e. e. one end of the shaft extending to the side of the cart and prepared
for a loose crank handle i for the purpose of turning the shaft. On the shaft h. h. are
fixed two mitered and toothed wheelsjj which on the shaft being turned, work in and
turn two other mitered toothed wheels k. k. fixed in the frames g. g. which frames are
fixed one over each of the levers e. e. at the points where the weight is to rest on the
levers, when in the act of weighing.
On the mitered wheels k. k. are arms pointing downwards (see section Fig. 3) in
which are formed square sockets, into which are fitted screws with a square head on
one end, the screws and square heads being the length required to reach the top of tho
sockets in which they arc loose. The screw ends works in the bottom rails of the
frames g. g. which are tapped and prepared for them.
When the shaft h. h. is turned the mitered wheels revolving cause the screws / Fig. 3
to move downwards on to the pins n. n. Fig. 1 which are fixed in required positions
through the axletree and bear with a knife edge on the levers e. e. Fig. 1. thus gradually
putting the weight of the body of the cart and its contents on to the levers at the
graduated weighing points.
In box carts provision is made for loosening the body of the cart from the axletree
simultaneously with the turning of the shaft h. h. Fig. 1. in the following manner
Viz. On the axletree are fixed two vertical standards o. o. Fig. 1. with cotter holes
through them in position paralell to the shaft h. h. The cotters p. p. it into these

page_text: holes are fixed with collars round the shaft h.. and are tapped to work on right and
left hand screws as shewn on the shaft h. h. When the shaft is turned for weighing
the cotters receed out of the holes in the standards o. o. and release the cart body with
sufficient play to allow it to lift off the bed or bumper blocks s. s. Fig. 1 and let the
whole weight rest on the levers e. e. Fig. 1. In practice I purpose to use either a
spring balance or a steelyard in connection with the connecting rod e going through
the axletree. But as I do not claim any special feature or novelty in the construction
of either the spring balance or steelyard I purpose useing, I do not submit any detail
drawing of their construction.
In carts and other vehicles with springs the unlocking arrangement is not required
a little play only being necessary in the cotters at the end of the springs to give a
little play between the bearing up and pulling down of the springs.
In weighing the wheels of the cart or other vehicals require to be scotched and the
load adjusted to a balance or to bear slightly on the horses back, any other inequality
in loading sideways the double levers e. e. compensate for and equalise the pressure of
weight on the spring balance or steelyard. The crank handle is then put on to the
shaft h. h. and turned untill the whole weight of the body of the cart rests on the
levers e. c.
The weight is then read off the dials or tested on the steelyard. The tare
for the body of the cart is taken in the same manner before loading or after discharging
the load.
To prevent any loose horizontal or lateral motion when the cart body is locked down
and traveling, two steady pins or studds Fig. 1 are fixed on the bottom of tho cart
body and as the cart is lowered on to its bed they sink into holes in iron plates fixed on
the top of the blocks s. s. Fig. 1 which form the the bed of the cart.
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:
1st. The application of the two levers e. e. fixed in the position as described for the
purpose of balancing the load below the centre of the arms or bushes of the axletree
and compensating or balancing any inequality in the load sideways, also for increasing
the the indicating power of the spring balance or steelyard to any graduated number
as against one on the direct centre bearing.
2nd. The construction and combination of the frames, screws, toothed mitered
wheels, shaft and cotters working with the motion as described for the purpose of
gradually lifting and putting the weight on or off the weighing apparatus, and
simultaneously with their motion locking or unlocking the body of the cart from the
axletree for the purpose of weighing.
D 17e dawn of 1007