Improvements in or relating to Weighing Machines.
Year: 1894

page_text: Date of Application, 1st Sept., 1894-Accepted, 20th Oct., 1894
COMPLETE SPECIFICATION.
Improvements in or relating to Weighing Machines.
We EDUARD BÖHMER and JOHANNES BÖHMER both of Bromberg-Schrötters-
dorf in the Empire of Germany, Manufacturers, 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 weighing machines and principally to those having
platforms for reception of heavy weights, and the object of the improvements is to
avoid or minimize the effect of shock or jolt upon the bearings and knife edges, such
as may occur from a careless falling of the load thereon or in placing or removing
the load or otherwise.
The improvements substantially consist in giving to those parts of the machine
which give or sustain thrusts, a springing or elastic foundation or bearing.
In the annexed drawing
Fig. 1 is a side elevation of a platform weighing machine provided with the
improvements.
Fig. 2 is a side elevation and Fig. 3 is an end elevation of one construction of a
hanger bearing.
Figs. 4 and 5 are similar views of another construction of hanger bearing.
Fig. 6 is a side elevation, Fig. 7 an end elevation and Fig. 8 a plan of a knife
edge bearing.
Fig. 9 is a portion of a longitudinal section of a weigh bridge or machine with
flush platform for weighing waggons or other heavy loads.
Figs. 10 and 11 are side and end elevations respectively of one of the bridge
knife edge bearings.
Figs. 12 and 13 are side and end elevation respectively of the bearing of one of
the under beams.
In the weighing machine shown in Fig. 1 the platform is made double, that is to
Bay on the actual platform c, a second platform c¹ is supported by means of resilient
cushions such as coiled springs or rubber blocks to take up or deaden shock from
the load on the platform c¹. The pallets i on which the knife edges rest, and those
which are supported upon knife edges and carry the hangers are each provided
with resilient or elastic supports such as the rubber blocks or pads g Figs. 2. 3. 6.7.8
or the coiled springs rr Figs. 4 and 5.
In the machine illustrated in Fig. 9 the bearings of the bridge are supported by
springs (Fig. 11) while the pivots of the under beams are carried by pallets
supported on rubber pads g.
r po
It will be seen that by interposing between the pallets of the knife edge bearings
and the parts more immediately carrying or carried by said pallets, an elastic or
springing cushion has here described, shocks to the knife edges are greatly lessened;
and by futhermore dividing the platform into two parts, the one supporting the
other through elastic or springing cushions the shocks are greatly diminished at
the outset. It is obvious that if thought desirable the elastic cushion could be
ommitted from any one or more of the bearings, also that there may be employed as
a cushion any forms of springs and any kind of suitably resilient or elastic material
or that springs and such material may be used in combination. We do not confine

page_text: the improvements to the particular constructions of weighing machines. here
illustrated but ;-
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is ;-
1. In weighing machines the construction for deadening shocks from movement of
the load consisting in providing all or some of the parts of the machine which
come under pressure or tension with resilient bearings.
2. In a weighing machine the combination with platform of platform c
supported thereon and elastic cushions between said platforms for the purpose set
forth.
3. In a weighing machine the combination with a pallet i and a knife edge
operating against said pallet, of means for elastically supporting said pallet against
the pressure of said knife edge for the purpose set forth.
4. The construction of elastic bearings for pallets i and hangers j substantially
as illustrated and described.
Dead his I
La1004
R. HADDAN,
Of the Firm of Herbert Haddan & Co.,
18, Buckingham Street, Strand, W.C., London, Agent to Applicants.