Improved Grids for Plates in Secondary Electrical Batteries.
Year: 1896

page_text: Date of Application, 2nd Oct., 1896
Complete Specification Lofe 30th July 1907 Accented 18th Sent 1807
Date of Application, 2nd Oct., 1896
Complete Specification Lefi, 30th July, 1907 Accepted, 18th Sept 1807
PROVISIONAL SPECIFICATION.
Improved Grids for Plates in Secondary Electrical Batteries.
I THOMAS FROGGATT of Nos. 55, 57 and 59 Warham Street Kennington Park
and of "Clevedon" No. 19 Chatsworth Road West Norwood both in the County
of Surrey File Manufacturer and Electrician do hereby declare the nature of this
invention to be as follows:-
My invention consists in the construction of frames or grids made of lead or
other suitable metal in such a manner as to securely hold and retain the paste
of which the plates in electrical batteries is composed.
For this purpose each frame or grid so made by me is composed of several
metallic bars either horizontal or vertical or both some or each of which bars is
or are hollowed from the edges inwards so as to receive and securely retain the
paste or composition of which the plate consists this object being effected without
the use of any other external or internal means.
At or near one side of the top of each such frame or grid I provide a connecting
bar or "tang" of the same metal as that of which such frame is made for the
purpose of connecting the plate therein contained with the other plates comprised
in each Electrical Battery.
Dated this 2nd day of October 1896.
COMPLETE SPECIFICATION.
Improved Grids for Plates in Secondary Electrical Batteries.
I THOMAS FROGGATT of Nos. 55, 57 and 59 Warham Street Kennington Park
and of "Clevedon " No. 19 Chatsworth Road West Norwood both in the County
of Surrey File Manufacturer and 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:-
My invention consists in the construction of frames or grids made of lead or
other suitable metal in such a manner as to securely hold and retain the paste
of which the plates in electrical batteries is composed.
And in order that my invention and the manner of carrying out the same may
be fully understood I have annexed hereto a sheet of drawings to which I here-
under refer by the figures and letters marked thereon:-
Fig. 1 is a front view of my grid or frame consisting of both vertical and
horizontal bars and shews the connecting bar or "tang" at or near one side of the
top of such frame or grid and is constructed of the same metal as that of which
such frame or grid is composed.

page_text: Fig. 2 is a side view of the outer end of one of such frames or grids the dotted
lines between the letters a and b shewing the projecting edge thereof.
Fig. 3, is a view of one of the hollowed or grooved vertical bars of one of such
frames or grids.
Fig. 4, is a view of the bottom of one of such frames or grids shewing the ends
of the vertical grooved or hollowed bars thereof the letters c, d, e and f, representing
the spaces between the vertical bars thereof so hollowed or grooved as aforesaid.
I construct such frames or grids of lead and antimony in the proportions of
ten parts of lead to one of antimony but such proportions may be varied as occasion
may require or they may be constructed of other suitable metal or material.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what
I claim is
1. A frame or grid consisting of metallic bars either horizontal or vertical or
both some or each of which bars is or are hollowed or grooved from the edges
inwards so as to receive and securely retain the paste or composition of which the
plates used in electrical batteries consist.
2. The grooved or hollowed bars of which such frames or grids consist.
HENRY KEEBLE,
57 Ondine Road, East Dulwich, S.E.,
Agent for Thomas Froggatt, By Power of Attorney.
HENRY KEEBLE,
57 Ondine Road, East Dulwich, S.E.,
Agent for Thomas Froggatt, By Power of Attorney.