Improvements in Scales.
Year: 1894

page_text: Date of Application, 10th Apr., 1894
Complete Specification Left, 14th July, 1894-Accepted, 25th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Scales.
I, GEORGE HERBERT, of 6 and 7 West Smithfield, London E.C., Scale and
Weighing Machine Manufacturer do hereby declare the nature of my said invention
to be as follows:-
The object of my invention is to effect improvements in the scale pans and
analogous parts of scales and other weighing machines, for the purpose of increasing
the durability of the weights used with such scales and weighing machines.
In carrying out my invention, I insert, or otherwise fix in or upon the upper
surface of the weight pan or scale, a veneer, surface, or covering of india rubber,
vulcanite, vulcanised fibre, gutta percha, ebonite, leather, aluminium, asbestos, or
some other suitable elastic or soft material, which will increase the durability of the
weights, used with such scales, and reduce the loss in weight arising from wear and
frictional contact, as is the case when the weights come in contact with the metal
scales, now in general use.
In some cases I form the scale pan for receiving the weights of one or more of
the materials aforesaid, either in combination with metallic frames, or without, as
preferred.
By my invention the process of weighing articles is rendered uoiseless, the
weights coming in contact with the above materials reducing the vibration to a
minimum.
Dated Och & nil 1901
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.
COMPLETE SPECIFICATION.
Improvements in Scales.
I, GEORGE HERBERT, of 6 and 7 West Smithfield, London E.C., Scale and
Weighing Machine Manufacturer, do hereby declare the nature of my said 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 the pans of scales and analogous parts of scales and
weighing machines, more particularly (but not exclusively) to those known as the
weight pan or weight scales, and has for its objects to improve the durability of
the weights used with such scales, and obviate the consequent loss in weight of such
weights arising from wear and frictional contact, as is the case when the weights
come in contact with the metal scales now in general use; also the prevention of
vibration or concussion; and the improvement of the fittings of scales generally ;
the use of my invention also increasing, the durability of the knife edge centres,
agate, or other bearings, and also rendering such operations almost noiseless.
In carrying out my invention I manufacture, or so alter and adapt the weight
scales now in use, as to enable me to insert or otherwise fix, in or upon the upper
surface of the same, a veneer surface or covering of vulcanised rubber, ebouite,
vulcanite, gutta percha, asphalte, corticine, linoleum, kamptulicon, or some other
suitable elastic or soft material, and with or without the combination of air cushions
or chambers or their equivalents.

page_text: I sometimes make the weight scales or pans of one or more of these materials,
either singly or in combination, and with or without metallic frames. The scales
may be flat, concave, convex, or of any other desired shape.
And in order that my said invention may be particularly described and
ascertained, reference is hereby made to the accompanying drawings, in which
similar figures of reference indicate corresponding parts.
Fig. 1 is a plan and Fig. 2 an enlarged section, illustrating one method of forming
my improved weight scales or pans.
Figs. 3, 4 and 5, are sectional illustrations of other methods of manufacture.
Referring to Figs. 1 and 2, 6 is a metallic disc or weight scale. 7 is a layer of
elastic material, held in position by spinning, or otherwise turning the annular lip 8
over into the material after inserting the same, thereby securing a close and
tight joint.
and
In Fig. 3 the metallic disc or frame 6 is so formed that the elastic material 7 is
inserted from below the frame, the plate 9 being afterwards under pressure soldered
at 10, where it meets the frame 6, a projection being formed at 13 for securing the
tension of the elastic material, and making a tight joint.
In Fig. 4 the frame is formed with a lip 8, which is spun or otherwise turned
over the elastic material 7, as in Figs. 1 and 2.
In Fig. 5 the weight scale with its frame is shown formed in two parts, 6 being
one part of the frame, and 11 a plate fitting the part 6 and held in position by
screws 12, as shown, or otherwise secured, after the insertion of the elastic
material 7.
Although I prefer the above described methods of attaching aud fitting the elastic
material to the weight scale or other pans, the material may be attached by
cementing, or by other adhesive material, and means.
In some cases I use corrugated elastic material, or such material formed with a
roughened surface, to reduce wear and prevent slipping.
I also sometimes fit the undersides of the pans or frames with elastic rings, studs,
plugs or equivalent devices, for reducing vibration arising from contact with the
counter or other article.
I also sometimes fit similar elastic rings, studs, or plugs, or equivalent devices, on
the upper side or top of the stop or resting place of goods and weight scales, in the
case of certain weighing machines, for example: inverted machines.
For a similar purpose, and to improve the method of fitting the goods scales to
the arms, arranged triangularly or other fittings to the goods scales, on account of
the varying sizes of the china plates and other scales, I fit the vertical portions of
such arms with rubber plugs, studs, or pads, whereby the fitting is improved and
the usual clatter, arising from the contact of the plates with the arms, is prevented.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. In scale pans of scales and weighing machines, the combination therewith of
an elastic material, such as rubber or other suitable substance, with or without the
combination of air cushions or chambers, or their equivalents, substantially as and
for the purposes herein before described and illustrated by the drawings.
2. In scale pans of scales and weighing machines, the application and use of an
elastic material, such as rubber, or other suitable substance, with or without the
combination of air cushions or chambers or their equivalents, substantially as and
for the purposes herein before described.
Dated 13th July 1894.
GEO. DO WNING,
8, Quality Court, London, W.C., Agent.