Year: 1887

page_text: Date of Application, 2nd Mar., 1887
Complete Left, 2nd Dec., 1887
Complete Accepted, 6th Jan., 1888
Sir DAVID LIONEL SALOMONS, Broomhill, Tunbridge Wells, Bart., THOMAS PARKER,
and PAUL BEDFORD ELWELL, both of Wolverhampton, Engineers do hereby declare
the nature of this invention to be as follows:-
This invention relates especially to that type of secondary cell in which the active
material is supported by metal frames, or grids, but it also applies to that type in
which the active material forms its own support.
On either edge of the plate are cast, or otherwise fixed, at suitable intervals, lugs
or projections about " long x " wide, in a plane with the plate.
Upon all these lugs, or upon those of alternate plates, or as may be arranged, are
fixed rings, washers or bands of insulating material, of suitable thickness to form
distance pieces between the lugs of one plate and those of the next on either side, or
the lugs may be pierced or slotted, and headed keys or plugs of vulcanite or of any
other suitable insulating material, fixed in, the head being the means of separating
the plates.
Or, distance pieces of vulcanite tube or other tube of insulating material inay be
inserted between the pierced lugs & a band or strip of rubber or other suitable
material, passed through the alternate lugs and tubes, holding all securely together.
Or, vulcanite strips with notches may be slipped over or in, and between the lugs
so as to both separate and tie them together. The plates are thus held apart at the
edges and a clear space left between them for the electrolyte and any particles of
oxide etc., if detached from the plates must fall through to the bottom.
A rod of vulcanite, glass, or other suitable material may be slipped in between the
centres of the plates and left suspended from the top. This can be instantly with-
drawn if it be desired at any time, to examine the cells or to remove any paste
sticking between the plates.
Thin Saanan do of March 1007
DAVID L. SALOMONS.
P. BEDFORD ELWELL.
THOMAS PARKER.

page_text: COMPLETE SPECIFICATION.
An Improved Means of Separating the Plates in Secondary Batteries.
We, Sir DAVID LIONEL SALOMONS of Broomhill, Tunbridge Wells in the County
of Kent Baronet THOMAS PARKER of Commercial Road Wolverhampton in the
County of Stafford, Electrical Engineer and PAUL BEDFORD ELWELL of St. Cuthbert's
Albrighton in the County of Stafford Electrician, 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 more particularly to that type of secondary voltaic battery
in which the active material is supported by metallic frames or grids but these
Improvements are also applicable to that type of secondary voltaic battery in which
the active material forms its own support.
These Improvements consist in casting upon or otherwise fixing or securing to the
edges of the plates, lugs or projections; and in arranging upon or securing to the
lugs or projections or to alternate lugs or projections or to the lugs or projections on
alternate plates, suitable distance pieces of insulating material.
The lugs or projections are formed in the plane of the plate and they may
conveniently be about three eighths of an inch in length by about a quarter of an inch
in width.
The distance pieces may be constructed of any suitable material which will act as
an insulator such as vulcanized india-rubber or india-rubber compounds, vulcanized
fibre, wood, celluloid, earthenware or porcelain, glass and the like; and they may be
constructed in the form of rings, washers or bands to slip over and fit upon the lugs
or projections; or in the form of studs, plugs or pins to fit within and project from
holes cast or otherwise formed in, or slotted or pierced through, alternate lugs or
projections.
All the plates used in the same cell should have their lugs or projections formed or
secured in such positions and at such distances apart that the lugs on one plate
correspond with the lugs on all the other plates. The distance pieces on or in the
lugs or projections of one of the plates will then come into contact with the lugs or
projections or with the distance pieces thereon or therein, of the adjacent plate or
plates and act as separators.
It is obvious that the distance pieces may be arranged in various methods and com
binations. Thus, on one plate, the lugs or projections being numbered consecutively,
-the distance pieces may be borne by the lugs or projections having odd numbers,
and in the contiguous plate or plates by those having even numbers. Alternatively,
every alternate plate only, may have its lugs or projections provided with the distance
pieces which will then bear upon or be in contact with the lugs or projections upon
the intervening plates. Because of the smaller effective area of the distance pieces
when they are formed in the shape of plugs we prefer in all cases to fix these in
alternate lugs or projections in such a manner that plugs of one plate come into
contact with or bear upon the lugs of the contiguous plate or plates. To secure this

page_text: result it is necessary to alternate plates having plugs in the lugs or projections
bearing even numbers, with plates having the plugs in lugs or projections bearing
odd numbers.
For facility of construction, and to promote interchangability of the plates it will
however generally be found more advantageous to provide all the lugs or projections
of all the plates with distance picces which should in that case be constructed in the
form of rings washers bands or collars.
The plates are held apart or separated at the edges by means of the distance pieces,
and a clear space is thus left between them for the electrolyte, and any particles of
oxide or other material, if detached from the plates, will fall through this space to the
botton of the cell.
When the plates are of considerable dimensions in surface, or in other cases when
desired, a rod of vulcanite or similar insulating material may be slipped between the
centres of each pair of plates and be left there suspended by a projection or
projections thereon from the tops of the plates. This rod may be instantly withdrawn
at any moment when it is desired for example to examine the state of the cell, and
may be readily replaced.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we desire it to be
understood that what we claim is,
(1) As means for separating the plates in secondary batteries; lugs or projections
cast or otherwise fixed upon or secured to the edges of the plates, in combination with
insulating distance pieces; substantially as hereinbefore described.
(2) As a means for separating the plates of secondary batteries; a vulcanite rod
suspended between the centres of a pair of plates in combination with the lugs or
projections on the edges of the plates and the distance pieces thereon or therein;
substantially as herein before described.
Dated this 28th day of November A.D. 1887.
WILLIAM E. HEYS,
Agent for the Applicants.

page_text: Date of Application, 2nd Mar., 1887
Complete Left, 2nd Dec., 1887
Complete Accepted, 6th Jan., 1888
Sir DAVID LIONEL SALOMONS, Broomhill, Tunbridge Wells, Bart., THOMAS PARKER,
and PAUL BEDFORD ELWELL, both of Wolverhampton, Engineers do hereby declare
the nature of this invention to be as follows:-
This invention relates especially to that type of secondary cell in which the active
material is supported by metal frames, or grids, but it also applies to that type in
which the active material forms its own support.
On either edge of the plate are cast, or otherwise fixed, at suitable intervals, lugs
or projections about 3" long × 1" wide, in a plane with the plate.
Upon all these lugs, or upon those of alternate plates, or as may be arranged, are
fixed rings, washers or bands of insulating material; of suitable thickness to form
distance pieces between the lugs of one plate and those of the next on either side, or
the lugs may be pierced or slotted, and headed keys or plugs of vulcanite or of any
other suitable insulating material, fixed in, the head being the means of separating
the plates.
Or, distance pieces of vulcanite tube or other tube of insulating material may be
inserted between the pierced lugs & a band or strip of rubber or other suitable
material, passed through the alternate lugs and tubes, holding all securely together.
Or, vulcanite strips with notches may be slipped over or in, and between the lugs
so as to both separate and tie them together. The plates are thus held apart at the
edges and a clear space left between them for the electrolyte and any particles of
oxide etc., if detached from the plates must fall through to the bottom.
A rod of vulcanite, glass, or other suitable material may be slipped in between the
centres of the plates and left suspended from the top. This can be instantly with-
drawn if it be desired at any time, to examine the cells or to remove any paste
sticking between the plates.
Dhind this Second day of March 1887.

page_text: An Improved Means of Separating the Plates in Secondary Batteries.
We, Sir DAVID LIONEL SALOMONS of Broomhill, Tunbridge Wells in the County
of Kent Baronet THOMAS PARKER of Commercial Road Wolverhampton in the
County of Stafford, Electrical Engineer and PAUL BEDFORD ELWELL of St. Cuthbert's
Albrighton in the County of Stafford Electrician, 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 more particularly to that type of secondary voltaic battery
in which the active material is supported by metallic frames or grids but these
Improvements are also applicable to that type of secondary voltaic battery in which
the active material forms its own support.
These Improvements consist in casting upon or otherwise fixing or securing to the
edges of the plates, lugs or projections; and in arranging upon or securing to tho
lugs or projections or to alternate lugs or projections or to the lugs or projections on
alternato plates, suitable distance pieces of insulating material.
The lugs or projections are formed in the plane of the plate and they may
conveniently be about three eighths of an inch in length by about a quarter of an inch
in width.
The distance pieces may be constructed of any suitable material which will act as
an insulator such as vulcanized india-rubber or india-rubber compounds, vulcanized
fibre, wood, celluloid, earthenware or porcelain, glass and the like; and they may be
constructed in the form of rings, washers or bands to slip over and fit upon the lugs
or projections; or in the form of studs, plugs or pins to fit within and project from
holes cast or otherwise formed in, or slotted or pierced through, alternate lugs or
projections.
All the plates used in the same cell should have their lugs or projections formed or
secured in such positions and at such distances apart that the lugs on one plato
correspond with the lugs on all the other plates. The distance pieces on or in the
lugs or projections of one of the plates will then come into contact with the lugs or
projections or with the distance pieces thereon or therein, of the adjacent plate or
plates and act as separators.
It is obvious that the distance pieces may be arranged in various methods and com
binations. Thus, on one plate, the lugs or projections being numbered consecutively,
-the distance pieces may be borne by the lugs or projections having odd numbers,
and in the contiguous plate or plates by those having even numbers. Alternatively,
every alternate plate only, may have its lugs or projections provided with the distanco
pieces which will then bear upon or be in contact with the lugs or projections upon
the intervening plates. Because of the smaller effective area of the distance picces
when they are formed in the shape of plugs we prefer in all cases to fix these in
alternate lugs or projections in such a manner that plugs of one plate come into
contact with or bear upon the lugs of the contiguous plate or plates. To secure this

page_text: result it is necessary to alternate plates having plugs in the lugs or projections
bearing oven numbers, with plates having the plugs in lugs or projections bearing
odd numbers.
For facility of construction, and to promote interchangability of the plates it will
however generally be found more advantageous to provide all the lugs or projections
of all the plates with distance pieces which should in that case be constructed in the
form of rings washers bands or collars.
The plates are held apart or separated at the edges by means of the distance pieces,
and a clear space is thus left between them for the electrolyte, and any particles of
oxide or other material, if detached from the plates, will fall through this space to the
bottom of the cell.
When the plates are of considerable dimensions in surface, or in other cases when
desired, a rod of vulcanite or similar insulating material may be slipped between the
centres of each pair of plates and be left there suspended by a projection or
projections thereon from the tops of the plates. This rod may be instantly withdrawn
at any moment when it is desired for example to examine the state of the cell, and
may be readily replaced.
Having now particularly described, and ascertained the nature of our said
Invention and in what manner the same is to be performed, we desire it to be
understood that what we claim is,
(1) As means for separating the plates in secondary batteries; lugs or projections
cast or otherwise fixed upon or secured to the edges of the plates, in combination with
insulating distanco pieces; substantially as hereinbeforo described.
(2) As a means for separating the plates of secondary batteries; a vulcanito rod
suspended between the centres of a pair of plates in combination with the lugs or
projections on the edges of the plates and the distance pieces thereon or therein;
substantially as herein before described.
Dated this 28th day of November A.D. 1887.
WILLIAM E. HEYS,
Agent for the Applicants.