Improvements in Numbering or similar Machines.
Year: 1889

page_text: .
Date of Application, 3rd Dec., 1889
Complete Specification Left, 3rd Sept., 1890-Accepted, 18th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Numbering or similar Machines.
We, EDWARD PRIDDLE, of 5 Lawn Terrace, South Lambeth Road, in the County
of Surrey, Electrical Instrument Maker, and GEORGE OWEN DONOVAN of 4 Arliss
Road, Lavender Hill, in the County of Surrey, Electrical Instrument Maker, do
hereby declare the nature of our invention to be as follows:-
Our invention relates to numbering or similar machines such as checking machines,
electrical time stamping machines, type writers, or machines for stamping dates,
quantities, or amounts and has for its object the particular method of constructing
the type wheels whereby they can be manufactured in a very simple manner, and at a
greatly reduced cost.
The usual method employed in fixing the type upon the peripheries of the
recording wheels has been that of dove tailing the type into the periphery where the
type is composed of india-rubber and when composed of metal either stamped, or
deposited electrically each number has been separately soldered on to the periphery.
It is very obvious that either of the above methods require a considerable amount
of time and care in order that the types when finally arranged upon the wheel shall
be equi-distant from one another and shall lie truly around the circumference of the
wheel.
Our invention consists in manufacturing a ring of metal or other material upon the
outside surface of which the figures, letters, or other type are formed. This ring is
made of such a size that it will exactly fit upon the periphery of the wheel or drum,
for carrying such type I may fix it by soldering or in any other equivalent manner
and in order that the figures shall lie truly around the periphery of the drum,
the drum is laid upon a flat surface and the ring is placed over it and pushed down
until the various figures come into contact with suitable stops arranged around the
drum at proper relative beights so ensuring the type being truly fixed.
We may construct our ring of type either of copper or vulcanite, ebonite, or other
material.
When we form the ring of copper, a pattern is first made of the wheel or ring
having all the figures arranged on the periphery, this is then used to form a mould of
wax of the figures upon the outside of the pattern. The mould is divided into such a
number of divisions as to ensure each division being withdrawn from the pattern
without damaging the impression of the type in the wax mould.
After the pattern is withdrawn the mould is fitted together again as a whole, and a
ring is formed upon the inside thereof by the electrical deposition of copper upon the
surface of the mould so formed, or we may equivalently form the mould of plaster of
Paris or other similar material in which case we may cast a ring of metal therein, or
again we may form the mould of steel, brass, or other suitable material capable of
resisting considerable pressure and may form the type ring by forcing vulcanite, or
ebonite or other similar material into the various interstices of the mould.
The rings formed as above described may be fixed to the periphery of the wheels in
any convenient manner.
Dated this 2-1 1-
L1000
FELL & WILDING,
1, Queen Victoria Street, Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Numbering or similar Machines.
We, EDWARD PRIDDLE, of 5 Lawn Terrace, South Lambeth Road, in the County
of Surrey, Electrical Instrument Maker, and GEORGE OWEN DONOVAN late of 4 Arliss
Road Lavender Hill, in the County of Surrey, but now of 49 Hartismer Road, in the
County of Middlesex, Electrical Instrument Maker, do hereby declare the nature of
this invention and the manner in which the same is to be performed to be particularly
described and ascertained in and by the following statement :-
Our invention relates to numbering or similar machines, such as checking
machines, electrical time stamping machines, type writers or machines for stamping
dates, quantities or amounts, and has for its object the particular method of con-
structing the type wheels whereby they can be manufactured in a very simple manner
and at a greatly reduced cost.
The usual method employed in fixing the type upon the peripheries of the recording
wheels has been that of dove-tailing the type into the periphery, where the type is
composed of india rubber, and when composed of metal, either stamped or deposited
electrically, each number has been separately soldered on to the periphery..
It is very obvious that either of the above methods requires a considerable amount
of time and care, in order that the types when finally arranged upon the wheel shall
be equi-distant from one another and shall be truly disposed around the circumference
of the wheel.
In order that our invention may be the better understood we now proceed to
describe the same in relation to the drawings hereunto annexed, reference being had
to the letters and figures marked thereon. Like letters refer to like parts throughout
the figures.
Figure 1 is a plan of the pattern for moulding the ring showing the divisions in
the same.
Figure 2 is a side view of the type ring when formed.
Figure 3 is an edge view of the same.
Figure 4 is a plan showing the mould divided instead of the pattern.
Our invention consists in manufacturing a ring of metal or other material upon the
outside surface or edges of which the figures, letters or other type are formed.
This ring is made of such a size that it will exactly fit upon the periphery of the
disc or drum for carrying such type.
We may fix it by soldering or in any other equivalent manner and in order that
the figures shall lie truly around the periphery of the disc or drum the disc or drum
is laid upon a flat surface and the ring is placed over it and pushed down until the
various figures come into contact with suitable stops arranged around the disc or
drum at proper relative heights so ensuring the type being truly fixed.
We may construct our ring of type either of copper or other suitable metal or
material.
When we form the ring of copper, a pattern is first made of the wheel or ring
having all the figures arranged on the periphery, this is then used to form a mould
of wax or other suitable material of the type or figures upon the outside of the
pattern.
The mould or the pattern is divided into such a number of divisions B B B B as to
ensure each division being withdrawn from the pattern without damaging the
impression of the type in the wax mould.
The pattern may be made as shown at Figure 1, in sectional parts so that the centre
part A may be withdrawn and the outer sections B B B B be then drawn from the
mould towards the hollow space in the centre so that the pattern may be entirely
removed without dividing the mould.
Alternatively the mould is withdrawn from the pattern in pieces, the former is
again fitted together as a whole after the pattern has been withdrawn and a ring is
formed upon the inside thereof by the electrical deposition of copper upon the surface

page_text: of the mould, so formed, or we may equivalently form the mould of plaster of Paris,
or other similar material in which case we may cast a ring of metal therein, or again
we may form the mould of steel, brass, or other suitable material capable of resisting
considerable pressure, and may form the type ring by forcing suitable material into
the various interstices of the mould.
The pattern or mould whichever is divided as the case may be, can be locked together
by keys D D D D or by other suitable means such as clamps or screws.
The rings C formed as above described may be fixed to the periphery of the wheels
in any convenient manner.
It is very obvious that a considerable saving in manufacture is effected by this
method of construction.
We may solder, cement or otherwise fix the rings upon the type wheels in any
convenient manner.
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 :-
The process of production from a circular pattern or mould one of which must be
divided into suitable sections to permit the removal of one from the other, of a ring
with letters, types or figures produced upon its outer circumference or edges, either
by casting, stamping, pressure or electro-depositing, within the said mould, the said
ring being composed of metal, or other suitable material to permit of such aforesaid
process of manufacture, substantially as described.
Dated this 3rd day of September 1890
FELL & WILDING,
Per R. A. Hoffmann,
1, Queen Victoria Street, London, E.C., Agents for the Applicants