Year: 1887

page_text: Date of Application, 3rd Feb., 1887.
Specification Accepted, 4th Mar., 1887.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
Southampton Buildings in the County of Middlesex, 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 :-
My invention relates to a galvanic cell in which the positive or non-attacked element
is of aluminium and consists in the construction and arrangement of said cell, as
hereinafter more particularly set forth.
In the accompanying drawings, Fig. 1 shows the elements and their connections in
perspective. Fig. 2 is a vertical section of said elements in place in the containing
vessel. Fig. 3 shows the positive plate, its supporting bar and threaded nut. Similar
letters of reference indicate like parts.
A is the containing jar of any suitable material. B B, are plates of zinc. C, is a
bar of non-conducting material, preferably wood. In said bar is a channel or
groove, D. E is a plate of aluminium preferably perforated, as shown. Extending
from one edge of said plate is a rod F. Said rod passes through a vertical aperture in
the bar C. The upper end of said rod is threaded to receive the nut G. The edge of
the aluminium plate is received in the groove D in the bar C, and is firmly held
therein by setting up the nut G on the rod F after the latter has been passed through
the aperture in said bar.
The zinc plates B are disposed on each side of the bar C, to which they are
connected by bolts L, which pass through said plates and bar, and are set up with
nuts H. To one of the plates B, is secured the circuit connection I, by means of one
of said bolts L. Said connection consists of a flat portion J, having a shoulder which
rests upon the upper edge of the plate B, and above said shoulder there is a binding post K.
An aperture in the flat portion J receives the bolt L. On the upper part of the nut G
n

page_text: is a binding post M. The circuit connection I, bolts L, nut G and binding posts K
and M are all of aluminium.
In practice, the elements assembled as aforesaid are placed in the cell A with any
suitable exciting liquid, such as sulphuric acid and water, when the cell yields a steady
and uniform current of moderate strength.
It will be seen that by the aforesaid construction I connect together the elements of
the cell in a simple, secure and positive manner, and that I employ screws and bolts
which allow of all portions being easily separated. All bolts and other connecting
portions being of aluminium, there is no danger of oxidation at places of contact and
consequent breakage or deterioration of supports.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed as communicated to me by my foreign
correspondent I declare that what 1 claim is ;-
1. The combination of the aluminium element E having threaded rod F, the grooved
bar C. nut G, zinc element B and bolts L, substantially as described.
2. The combination of the aluminium element. E having threaded rod F, the
grooved bar C, nut G, zinc elements B B, bolts ↳ and circuit connection 1, substantially
as described.
3. The combination of the element E of aluminium, having threaded rod F, grooved
bar C, nut G, zinc elements BB, bolts L, circuit connection I and binding posts K, M,
-the said rod F, nut G, bolts L circuit connection I and binding posts K, M, being of
aluminium, substantially as described.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.