Improvements in Weighing Machinery.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Weighing Machinery.
We, JAMES LYONS SAMPSON, of Wenlock Road, London, N., Engineer, and
JAMES HART, of the same address, Engineer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in that class of weighing machinery in
which the goods to be weighed are suspended from a wheel or roller travelling on
a rail usually placed at a considerable height above the floor and in which a section
of this rail is connected to a system of weighing levers placed near the rail while
the steelyard or indicating apparatus is removed to a convenient position near the
floor.
According to this invention the above mentioned section of rail is supported by
knife edges on arms or projections at one end of a lever which we will call the
lower lever and which arms or projections as we prefer extend from a transversely
arranged portion of the lever made hollow or tubular to take torsional strains; the
other end of this lower lever is connected by a flexible piece of metal to a part of
the box or casing of the apparatus, whilst at an intermediate part of its length the
lever is provided with knife edges resting in links supported by knife edges on a
lever above which we will call the upper lever and which as we prefer is also
constructed with a transversely arranged portion made hollow or tubular to take
torsional strains. This upper lever is supported at one end by knife edges with
which it is provided and which rest in fixed pillow blocks and at the other end by
means of a knife edge or edges with which the lever is furnished resting in a pillow
block or blocks carried at the upper part of a support or strut whose lower portion
is bifurcated and forms pillow blocks that rest on knife edges carried by the
steelyard or the bifurcation might be dispensed with and a single pillow block and
knife edge be used. By means of a crank the support or strut can be lifted off
the steelyard so as to be then supported out of use by the crank pin and then the
section of rail ordinarily supported by the lower lever can rest on fixed supports.
This section of rail is prevented from canting laterally by means of flexible
connections arranged between it and a fixed portion of the apparatus.
Dated thie 2nd dex of November 1895
Improvements in Weighing Machinery.
We, JAMES LYONS SAMPSON, of Wenlock Road, London, N., Engineer, and
JAMES HART, of the same address, Engineer, 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 relates to improvements in that class of weighing-machinery in
which the goods to be weighed are suspended from a wheel or roller travelling
on a rail usually placed at a considerable height above the floor and in which a

page_text: section of this rail is connected to a system of weighing levers placed near the rail
while the steel-yard or indicating apparatus is removed to a convenient position
near the floor.
In the accompanying drawings,
Fig. 1 is a sectional side elevation, and Fig. 2 a front elevation, showing weighing
machinery according to this invention.
Fig. 3 is a plan of the apparatus with its cover removed.
Fig. 4 is a plan showing a detail.
According to this invention the section of rail 1 connected to the weighing levers
is supported by knife-edges 2 on arms or projections 3 at one end of a lever 4,
which we will call the lower lever, the arms or projections 3, as we prefer,
extending from a transversely arranged portion 5 of the lever made hollow or
tubular to take torsional strains. The other end 4" of this lower lever is connected
by a flexible piece of metal 6 to a fixed part 7 of the box or casing 8 of the
apparatus, which is supported by brackets 8, whilst at an intermediate part of its
length the lever is provided with knife-edges 9 resting in links 10 supported by
knife edges 11 on a lever 12 above, which we will call the upper lever and which,
as we prefer, is also constructed with a transversely arranged portion 13 made
hollow or tubular to take torsional strains. This upper lever is supported at one
end by knife-edges 14 with which it is provided and which rest in fixed pillow-
blocks 15 and at the other end 12" by means of a knife edge 16 or edges with
which the lever is furnished resting in a pillow block 17 or blocks carried at the
upper part of a support or strut 18 whose lower portion may be bifurcated and form
pillow-blocks that rest on knife-edges carried by the steelyard or may (as shown)
be unbifurcated and be arranged to rest at its lower end 19 upon a stirrup shaped
piece 20 the side members of which rest on knife edges 21-carried by lugs 22 on
the steelyard 23 which may be of ordinary construction.
By means of a crank 24 journalled at 24* and provided with a crank pin 24ª and
handle 25, the support or strut 18 can when desired, be lifted off the stirrup shaped
piece 20 by turning the crank-pin in the direction of the arrow, and the section of
rail 1 ordinarily supported by the lower lever 4 can then rest on fixed supports 26
carried by the casing 8. In this way the steelyard can be readily disconnected
from the lever mechanism and the various knife edges relieved of strain.
The section of rail 1 is prevented from canting laterally by means of flexible
connections arranged between it and a fixed portion of the apparatus. As shown
these connections 27 are secured to the section 1 by means of tee-shaped metal
blocks 28 riveted to the section 1 at 29 and connected to the fixed casing 8 of the
apparatus by means of brackets 30 bolted to them and to the casing.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In weighing-machinery of the kind referred to, the general arrangement of
upper and lower levers for supporting the rail section and transferring the load to
the indicating-apparatus, substantially as herein before described.
2. In weighing-machinery of the kind referred to, the arrangement of flexible
connections for preventing the movable section of rail from canting laterally,
substantially as herein before described.
3. Our improved weighing-machine constructed, arranged and operating
substantially as herein before described with reference to and shown in the
accompanying drawings.
Dated this 1st day of August 1896.
For the Applicants,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.