Year: 1896

page_text: We, HYPOLITE DAVID and ANTOINE FRANCOIS TROPHEME, of 21 Boulvevard
Poissonniere, Paris, in the Republic of Frauce, do hereby declare the nature of this
invention to be as follows:-
This invention relates to a weighing apparatus so combined with a kind of barrow
as to form a portable weighing apparatus which may be used for conveying weighed
objects or such as require to be weighed.
This improved weighing apparatus is composed of two distinct parts; a barrow or
carriage of appropriate shape and a frame which we term the carrier. These two
parts are suitably connected to one another by means of two levers hereinafter
described.
The barrow provided with handles carries side pieces or cheeks at its front part,
in which the ends of a cranked axle for carrying the wheels are fixed. When the
apparatus is placed in a position ready for weighing, the carriage rests at its front
end, through the agency of bearing pieces, arranged on the said carriage, upon
pieces terminating in bevel edges which we will terin the knives, which form a rigid
body with one of the aforementioned levers. At the rear portion, the said carriage
rests, through the medium of a cross bar connecting side pieces or cheeks of the
carriage with supporting links and bearings, upon knives connected to the other of
the aforementioned levers.
The two levers have their fulcra arranged respectively as follows: the fulcrum of
the first lever in the front part of the apparatus at the point where the knives it.
carries are in contact with the bearings, fixed at the front of the carrier; the fulcrum
of the second lever in the rear part of the apparatus at the point where the knives
carried by this lever rest in the bearings likewise suitably connected to the rear part
of the carrier.
When under these conditions the apparatus is in a horizontal position, the
carriage, whether charged or not, rests upon the kuife edges and acts upon these
latter in such a manner as to cause the levers to turn about their fulcra, that is to
say their points of contact with the knives at their front and rear ends.
The free extremities of the front and rear levers carry knife edges which rest in
a supporting piece which in turn carries a bearing supported by a knife edge on a
thin lever which can turn pivotally about its knife edge near the middle of
the apparatus, the said knife edge resting on a bearing connected to a small frame
carried by a cross bar connecting the side pieces of the carrier.
One of the extremities of the third lever terminates in a rod on which a weight
is fixed, which serves to adjust the weighing apparatus; at its other extremity this
same lever is provided with an index movable relatively to another index carried by
the barrow or carriage.

page_text: Below the third lever the halane heaun o' the weighing apparatus is so arranged
that it can slide; this balance beatn is provided with umbered divisions for
indicating the weight in kilogrammes or other units; it is held in place by the
frame forming the fulcrum for the third lever and by a piece connected to the said
lever; it can be actuated by means of a ring which it carries at its extremity at the
rear of the apparatus.
Above the third lever and resting upon it, is a small movable piece provided with
divisious representing hectogrammes or other fractional parts which the movable
piece serves to indicate.
A screw turning freely in the index carried by the third lever and in a rod or lug
carried by the said lever, serves to displace a weight for the purpose of taring the
weight of the apparatus if required.
On the carrier a double cranked piece is mounted on a shaft; this two-cranked
piece is actuated by a lever or handle and serves to fix the various movable parts
of the apparatus in position by lifting the balance beam and therewith the third
lever.
When an object is required to be weighed, the apparatus is placed in a horizontal
position; the different constituent parts are so arranged that, in this position, the
levers of the weighing apparatus are in equilibrium; that is to say, since the halance
beau is pushed as far as it will go beneath the third lever, so that its zero mark
coincides with a small index ou the extremity of the said lever, and as the swall
movable piece above referred to lies in such a position that its zero mark likewise
corresponds to a second index on the extremity of the third lever, the two index
fingers first mentioned will exactly coincide.
When the object to be weighed is placed on the carriage, pressure is transmitted
to the knives next to the pivotted extremities of the front and rear levers which are
thus displaced about their fulera; they descend ander this pressure and carry along
with them the piece supporting the inuer ends of the said levers, the third
lever, the balance bean and everything connected with these parts which are
thas displaced about the knife edge on the third lever at the middle of the
apparatus.
In order to return the weighing apparatus to the position of equilibrium, the
balance beam is then drawn out of its bearing until the first mentioned index which
has been displaced with the third lever relatively to the index on the barrow, "gain
coincides with the latter index; if the weight of the object does not correspond to
an exact number of kilogrammes, or other units, the small movable piece at the
rear end of the third lever is then displaced until the perfect equilibrium of the
apparatus is obtained. The figures which are then indicated on the said movable
piece and on the balance beam by the two index fingers at the end of the third lever,
give the exact weight of the object resting on the carriage.
It should be mentioned that, when the apparatus is in the position required for
weighing, the wheels of the carriage are suspended a certain distance above the
ground.
When the apparatus is required to be moved, or when any object or load is to be
transported thereon, the rear of the apparatus can be raised by means of arms, to
any suitable position.
When the apparatus is brought out of the weighing position into an intermediate
position between the horizontal and the approximately vertical, the wheels are
gradually brought into contact with the ground, as the apparatus is turned about
the lower portions of the front carrier cheeks, which will be suspended when the
wheels rest on the ground; that is to say the cheeks will then be clear of the
ground.
In order to effect this lifting of the carrier, the transverse bar between the front
cheeks of the carriage is lifted into contact with the under side of a portion of the
said carrier which is thus carried by the transverse bar.
It should be mentioned that in consequence of the metho I just described in which
the carrier is lifted, the various swinging or balancing parts are entirely free to

page_text: move and can incline themselves according to the position given to the apparatus.
Owing to this freedom of movement of these said swinging or balancing parts, the
levers and their knives are not subject to any strain during the movement of the
apparatus..
Irrespective of what may be the position given to the apparatus, any lateral
displacement of the movable parts is avoided by arranging, for instance at the
transverse ends of the. front and rear levers near the knives, small metal plates which
are firmly secured to the bearings; the latter are moreover provided with a kind of
cap serving to limit the vertical displacement of the knives and consequently of the
levers.
Dated th18 191
C018
day of November 1896.
We, HYPOLITE DAVID and ANTOINE FRANÇOIS TROPHÈME, of 21 Boulevard
Poissonniere, Paris, in the Republic of France, do hereby declare the unture 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 relates to a weighing apparatus so combined with a kind of truck
or barrow as to form a portable weighing apparatus which may be used for conveying
or transporting the weighed objects or such as require to be weighed from one place
to another.
In order that the said invention may be clearly understood we have illustrated the
same in the accompanying drawings in which
Figure 1 represents a longitudinal sectional view of the improved weighing
apparatus.
Figures 2, 3 and 4 are transverse sections on the lines. 2-2, 3-3 and 4-4
respectively of Figure 1.
Figure 5 shows a horizontal sectional view thereof, with the platform of the truck
or barrow removed.
Figure 6 shows various positions which the apparatus may occupy.
The improved weighing apparatus is composed of two distinct parts; a barrow or
truck A of appropriate shape and a fraine B which we term the carrier. These two
parts are suitably connected to one another by means of two levers C and D
hereinafter described.
The truck or barrow A provided with handles r carries side pieces or cheeks A¹ at
its front part, in which the ends of a cranked axle Figures 1 and 2 for carrying the
wheels e el, are fixed. When the apparatu- is placed in a position ready for weighing,
nid position being represented in full lines at I Figure 1, the truck A rests at its
front end, through the agency of bearing pieces a a', arrangel on said carriage.
apon pieces terminating in bevel edges which we will term the knife edges or
fulerums c c Figures 2 and 5, which form a rigid body with one of the afore-
mentioned levers C. At the rear end the said truck rests, through the medium of a
crossbar Figures 1 and 3 connecting the side pieces or cheeks of the truck
with supporting links 8 8 and bearings a², as, upon knife edges or fulcrums & d'
connected to the lever D.
The two levers C and D have their fulcra arranged respectively as follows: the

page_text: falerum of the lever C in the front, part of the apparatus at the point where the
knife edges c, c, which it carries are in contact with the bearings b, fixed at
the frout of the carrier B; the fulcrum of the lever D in the rear part of the
apparatus at the point where the knife edges d, d carried by this lever rest in the
bearings likewise suitably connected to the rear part of the carrier B.
When under these conditions the apparatus is in a horizontal position as
represented in Figure 1, the track A, whether loaded or not, rests upon the knife
edges c, c, d, d and acts upon these laiter in such a manner as to cause the
levers C and D to turn about their fulcra, that is to say their points of contact with
the knives c³ ³ d² d³.
The free extremities of the front and rear levers C and D which lie opposite their
fixed fulera, carry knife edges which rest in a supporting piece F which in turn
carries a bearing supported by a knife edge on the lover G which can turu
pivotally about its knife edge near the middle of the apparatus, the said knife
edge resting on a bearing & Figures 1, 2 and 4 connected to a small frame H carried
by a cross bar i conuecting the side pieces of the carrier B.
One of the extremities of the lever G terminates in a rod k on which a weight K
is fixed, which serves to adjust the weighing apparatus; at its other extremity this
same lever G is provided with an index finger movable relatively to another index
finger j carried by the barrow or truck A.
Below the lever G the balance bean 1, of the weighing apparatus is so arranged
that it can slide; this balance beam is provided with numbered divisious for
indienting the weight in kilogrammes or other units; it is held in place on the one
hand by the frame il and on the other hand by a piece connected to the lever G;
it can be actuated by means of a ring provided at its extremity at the rear of the
apparatus,
Above the lever G and resting upon it, is a small movable piece I Figures 1 and 3
provided with divisions representing hectogrammes or other fractional parts, which
the movable piece serves to indicate. A screw ma Figures 1 and 5 turning freely in
the index finger j and in a rod or lug n carried by the said lever G serves
to displace a weight J for the purpose of tareing the weight of the apparatus if
required.
On the carrier B a double cranked piece N Figures 1, 3 and 5 is mounted on a
sbaft; this double-cranked piece is actunted by a lever or handle and serves to
fix the various movable parts of the apparatus in position by lifting the balance
beam, and therewith the lever G.
When an object is required to be weighed, the apparatus is placed in a horizontal
position as indicated at I in Figure 1; the different constituent parts are so
arranged that, in this position, the levers of the weighing apparatus are in
equilibrium, that it to say, since the balance beam L is pushed as far as it will
go beneath the lever G, so that its zero mark O coincides with a small index
finger a Figure 1 on the extremity of the said lever, and as the small movable
piece I lies in such a position that its zero mark O likewise corresponds to the
index u, the two indices jaud will exactly coincide.
When the object to he weighed is placed on the carriage A, pressure is transmitted
to the knives c, c, d, d' and the levers C and D which are thus displaced about their
fulcra descend under this pressure and carry along with them the supporting
piece F the lever G, the balance beam L and everything connected with these said
parts which are displaced about the knife edge f
In order to return the weighing apparatus to the position of equilibrium, the
balance beam Listhen drawn ont of its bearing until the index; which has been displaced
with the lever G relatively to the index j on the barrow, again coincides with the
latter index; if the weight of the object does not correspond to an exact number of
kilogrammes or other units, the small movable piece J is then displaced until
perfect equilibrium of the apparatus is obtained. The figures which are then
indicated on the said movable piece and on the balance beam by the two
indices u, u, give the exact weight of the object resting on the truck A.
5

page_text: It should be mentioned that, when the apparatus is in the position required
for weighing, the wheels e and el of the truck A are suspended a certain distance
above the ground.
When the apparatus is required to be moved, or when any object or load in
to be transported thereon, the rear of the apparatus can be raised by means of
the arms to any suitable position and can be made to occupy any position
between the position indicated by I and that indicated by II in Figure 6 or it may
if desired be moved into the position III.
When the apparatus is brought out of the weighing position into an intermediate
position the wheels e el are gradually brought into contact with the ground, as the
apparatus is turned about the lower portions y of the carrier B which will be
suspended when the wheels rest on the ground; that is to say the cheeks will be
clear of the ground.
In order to effect this lifting of the carrier B, the transverse bar t¹ of the truck A
is lifted into contact with the under side of the portion of the said carrier which is
thus carried by the trausverse bar.
It should be mentioned that in consequence of the method just described in
which the carrier is lifted, the various swinging or balancing parts are entirely
free to move and can incline themselves according to the position given to the
apparatus. Owing to this freedom of movement of the said swinging or balancing
parts, the levers and their knives are not subject to any strain during the movement
of the apparatus.
Irrespective of what may be the position given to the apparatus, any lateral
displacement of the movable parts is avoided by arranging, for instance at the
transverse ends of the front and rear levers near the knives, small metal plates
which are firmly secured to the bearings; the latter are moreover provided with a
kind of cap p serving to limit the vertical displacement of the knives and
consequently of the levers.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. A portable weighing apparatus, serving at the same time for tmnsporting loads,
its characteristic feature consisting in the combination of a truck or barrow mounted
ou wheels, and provided with a supporting frame in connection with oscillating
levers in such a manner that, when the apparatus, occupies the weighing position,
the truck rests upon two of the oscillating levers which have their fulora arranged
on the supporting frame and which act upon a lever provided with a movable
balance beam, the supporting trame being-during the period of transporting the
apparatus carried by the truck after having been displaced relatively to this latter,
so na to disengage or release the intermediate levers, substantially as hereinbefore
described with reference to the drawing.
2. In the weighing apparatus, as referred to in the first claim, the arrangement of
the supporting frame, provided with bearings, upon which rest the knife-edges
forming the fulcra of three oscillating levers, substantially as herein before described
with reference to the drawing.
3. In the weighing apparatus, as referred to in the first claim the arrangement
of the truck provided with bearings resting on knife edges carried by two of the
oscillating levers, substantially as hereinbefore described with reference to the
drawing.
4. In the weighing apparatus, as referred to in the first claim, the use of metal
plates arranged in communication with the outer extremity. of the knives of the
levers as well as with caps arranged above the bearings in contact with the said
knives for the purpose of limiting the lateral or vertical displacement of the
oscillating levers, substantially as hereinbefore described with reference to the
5 drawing.
5. The arrangement as a whole and of the constructional details of the portable

page_text: weighing apparatus, serving at the same time for transporting loads, substantially
as herein before described with reference to the drawing.
Dated this 18th day of September 1897.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicants.