AN IMPROVED VOLTAIC MEDICATED PLASTER
Year: 1877

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for the Invention of
16
AN IMPROVED VOLTAIC MEDICATED PLASTER." A communication from abroad
by Warren Bailey Potter, of the Firm of Weeks and Potter, of Boston, Massa-
chusetts, United States of America, Wholesale Druggists.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 11th December 1877.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "AN IMPROVED VOLTAIC MEDICATED PLASTER."
[A communication from abroad by Warren Bailey Potter, of the Firm of Weeks and
Potter, of Boston, Massachusetts, United States of America, Wholesale Druggists.]
This Invention relates to the mode of applying voltaic plates to a medicated
plaster.
The said improved plaster has a sheet of medicated adhesive compound of any
suitable ingredients ordinarily used for medicated plaster, mounted upon a sheet of
cloth, leather, or other suitable material, and a series of metal plates. Heretofore
these plates have usually been applied to the front of the plaster, being imbedded in
or struck to the adhesive sheet of medicated compound, while in my improved plaster
these metal plates are applied to the back of the plaster, and holes are punched
through the plaster, exposing a portion of the plates, so that when in use the plaster
and its backing sheet of cloth lie between the skin and the plates. The plates are
best secured in this position by a strip of cloth cemented over them and upon the
cloth back of the plaster.
For convenience I use the adhesive compound of which the plaster is made as a
cament

page_text: I commonly use six plates, zinc and copper alternately, and six holes through the
said plaster, but the number may be varied. I also commonly perforate the plaster
to make it porous.
The plates are ordinarily connected together by passing a projection from one
through an orifice in the other, but this is not necessary in my improved plaster
when the plates are secured to the plaster, for the strip of cloth when properly
cemented in place will not only hold the plates to the plaster, but will also keep the
said plates in proper relation to each other.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the 29th
May 1878.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. "AN IMPROVED VOLTAIC MEDICATED PLASTER."
A communication from abroad by Warren Bailey Potter, of the Firm of Weeks &
Potter, of Boston, Massachusetts, United States of America, Wholesale Druggists.
This Invention relates to an improved voltaic plaster formed by applying voltaic
plates to a medicated plaster, as herein-after specified.
The said improved plaster has a sheet of medicated adhesive compound of any
suitable ingredients ordinarily used for medicated plaster mounted upon a sheet of
cloth, leather, or other suitable material, and a series of metal plates. Heretofore these
plates have usually been applied to the front of the plaster, being imbedded in or
stuck to the adhesive sheet of medicated compound, while in my improved plaster
these metal plates are applied to the back of the plaster, and holes are punched
through the plaster, exposing a portion of the plates, so that when in use the plaster
and its backing sheet of cloth lie between the skin and the plates. The plates are
best secured in this position by a strip of cloth cemented over them and upon the
cloth back of the plaster.
For convenience I use the adhesive compound of which the plaster is made as a
cement.
In the accompanying Drawing Figure 1 is a plan of one of my improved plasters;
and Figure 2 is a longitudinal section of the same drawn to an enlarged scale for the
sake of clearness.
A is the medicated compound; B is the cotton cloth backing; C, C, are the voltaic
plates; and D is the strip of cloth holding the said plates in place.
I commonly use six plates, zinc and copper alternately, with six holes through
the said plaster, but this number may be varied. I also commonly perforate the
plaster to make it porous.
The said plates are ordinarily connected by passing a projection from one through
an orifice in the other, but this mode of connection is not necessary in my improved
plaster when the plates are secured to the plaster as shown in the Drawing, for the

page_text: strip of cloth D, when properly cemented in place, will not only hold the plates to
the plaster, but will also keep the plates in the proper relation to each other.
The said plates may be arranged in a line, as shown, or otherwise, as desired.
Having thus fully described the said Invention as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it understood
that I claim, the improved voltaic plaster above described, having the voltaic plates
secured to the back of the plaster, und holes cut through the plaster above the plates,
as and for the purpose specified, so that when in use the said plaster shall lie between
the plates and the skin.
In witness whereof, I, the said William Robert Lake, have hereunto set my
hand and seal, this Twenty-seventh day of May, in the year of our Lord One
thousand eight hundred and seventy-eight.
WH PORT LARW