Improvements in Combined Turntables and Weighbridges.
Year: 1898

page_text: Complete Specification Left, 24th June, 1899-Accepted, 29th July, 1899
PROVISIONAL SPECIFICATION.
Improvements in Combined Turntables and Weighbridges.
I, JOHN JENKINS LEWIS, of Cardiff Railway Company; Engineers Office, Bute
Docks, Cardiff, 'in the County of Glamorgan, Engineer, do hereby declare the
nature of this invention to be as follows:-
Combined turntables and weighbridges have hitherto been made in a similar
manner to ordinary weighbridges, that is to say, the roller track of the turntable
has been supported at four points upon two double or triangular shaped levers,
the apex of one lever being supported by that of the other, the latter lever being
prolonged and connected to the steelyard.
The object of this invention is to give a better support to the turntable, and
to adapt the machine to heavier weights.
For tliese purposes the roller track is supported (at say eight points) on a
number (say four) of independent double or triangular shaped levers pointing
radially inwards and whose apices in place of supporting one another are all
supported near the centre of the turntable by a single lever one end of which
is pivotted eccentrically beneath the turntable whilst the other end projects
beyond the side of the turntable and is connected to the steelyard.
Dated this 22.d dox
L
1
1000
Improvements in Combined Turntables and Weighbridges.
I, JOHN JENKINS LEWIS, of Cardiff Railway Company, Engineers Office, Bute
Docks, Cardiff, in the County of Glamorgan, 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;-
Combined turntables and weighbridges have hitherto been made in a similar
manner to ordinary weighbridges, that is to say, the roller track of the turntable
has been supported at four points upon two double or triangular shaped levers,
the apex of one lever being supported by that of the other, the latter lever being
prolonged and connected to the steelyard.
The object of this invention is to give a better support to the turntable, and
to adapt the machine to heavier weights.
For these purposes the roller track is supported (at say eight points) on a
number (say four) of independent double or triangular shaped levers pointing
radially inwards and whose apices in place of supporting one another are all
[Price 8d.1

page_text: supported near the centre of the turntable by a single lever one end of which
is pivotted eccentrically beneath the turntable whilst the other end projects
beyond the side of the turntable and is connected to the steelyard.
Figure 1 is a plan of a turntable constructed according to this invention the
floor and rails being removed. Figure 2 is a section on the line 2-2 Figure 1
the floor and rails being in place.
The rails are fixed on a floor & supported on radial arms chaving rollers d
at their ends. The rollers d run on a circular track e carried by radial arms f.
On the underside of the track c are brackets el provided with bearings or knife
edges which rest on the double Y shaped levers h.
The inner ends of the levers h are pivotted at to the lever which is itself
pivotted at and their outer ends are supported in loops or straps hung on
knife edges in V shaped bearings m on standards n shown in front elevation in
Figure 3. The lever is connected to the steelyard o of ordinary construction.
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
1. Supporting the roller track on independent radial levers whose inner ends
are supported by a single lever pivotted eccentrically beneath the turntable and
connected to the weighing apparatus substantially as described.
2. Combined turntables and weighbridges substantially as described and illus-
trated in the drawings.
Dated this 23rd day of June 1899.