Im- PROVEMENTS IN PLASTERING TROWELS
Year: 1868

page_text: LETTERS PATENT to Samuel Ault, of Bridgtown, near Cannock, in the
County of Stafford, Edge Tool Maker, for the Invention of "Im-
PROVEMENTS IN PLASTERING TROWELS."
Scaled the 19th January 1869, and dated the 2nd November 1868.
PROVISIONAL SPECIFICATION left by the said Samuel Ault at the
Office of the Commissioners of Patents, with his Petition, on the
2nd November 1868.
I, SAMUEL AULT, of Bridgtown, near Cannock, in the County of
Stafford, Edge Tool Maker, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN PLASTERING TROWELS," to be as follows:-
Plastering trowels as ordinarily constructed consist of a flat plate of
steel, to the upper side of which a holder, which is grasped by the hand
in using the trowel, is permanently fixed.
My Invention consists in constructing the holders of plastering
trowels and securing them to the plates of the trowels in the manner

page_text: herein-after described, whereby the said holders are made capable of
being readily connected to or disconnected from the plates of the said
trowels.
In constructing a plastering trowel according to my Invention I make
the holder of two uprights or tangs, between which a screw pin or rod
is secured near the tops of the said uprights or tangs. This pin or rod
carries the wooden handle by which the holder is grasped while using
the trowel. On the bottom ends of the said uprights and made in one
piece therewith is a dovetail plate, the said plate having a taper figure,
that is, it is wider at one end than at the other end. On the upper side
of the steel plate of the trowel a hollow dovetail or seat is fixed, the said
dovetail seat being of a size and figure suited to receive the taper dove-
tail plate on the bottom of the holder. I make this hollow dovetail
seat somewhat of a trough figure, and fix it to the upper side of
trowel plate by rivetting. The dovetail seat may be made by casting,
or wrought by hand or otherwise into the required figure. I do not
limit myself to the shape of the dovetail plate and its seat.
When it is wished to connect the holder, made in the manner described,
to the trowel plate the narrow end of the dovetail plate at the bottom
of the said holder is inserted in the wider end of the dovetail scat
on the said trowel plate, and by a sliding motion the said dovetail
plate is passed into and made accurately to fill up the said seat; the
holder of the trowel is thus connected with the trowel plate. When
the trowel plate is worn, or for any other reason it is wished to remove
its holder therefrom, the said holder may by sliding it towards the wider
end of the dovetail seat be disconnected from the trowel plate and be
connected with a fresh trowel plate provided with a seat of the kind
described.
By my Invention the same holder can thus be used with any number
of trowel plates.
I prefer to make the uprights or tangs and bottom dovetail plate of
the holder and the dovetail seat of steel, but they may be made of brass,
malleable iron, or other hard metal or alloy.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Ault in the Great Seal Patent Office on
the 28th April 1869..
:
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
AULT, of Bridgtown, near Cannock, in the County of Stafford, Edge Tool'
Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of November, in the year
of our Lord One thousand eight hundred and sixty-cight, in the thirty-
second -year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Samuel Ault, Her special licence that I,
the said Samuel Ault, my executors, administrators, and assigns, or
such others as I, the said Samuel Ault, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN PLASTERING TROWELS,"
upon the condition (amongst others) that I, the said Samuel Ault, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great'
Scal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Samuel Ault, do hereby declare
the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement thereof, that is to say :-
Plastering trowels as ordinarily constructed consist of a flat plate of
steel, to the upper side of which a holder, which is grasped by the hand
in using the trowel, is permanently fixed.
My Invention consists in constructing the holders of plastering
trowels and securing them to. the plates of the trowels in the manner.
herein-after described and illustrated in the accompanying Drawing,

page_text: whereby the said holders are made capable of being readily connected
to or disconnected from the plates of the said trowels.
In constructing a plastering trowel according to my Invention I make
the holder of two uprights or tangs, between which a screw pin or rod
is secured near the tops of the said uprights or tangs. This pin or rod
carries the wooden handle by which the holder is grasped while using
the trowel. On the bottom ends of the said uprights and made in one
piece therewith is a dovetail or connecting plate, the said plate having a
taper figure, that is, it is wider at one end than at the other end. On
the upper side of the steel plate of the trowel a hollow dovetail or seat
is fixed, the said dovetail seat being of a size and figure suited to receive
the taper dovetail on the bottom of the holder. By engaging the dove-
tail plate with the seat on the trowel plate the holder of the trowel is
connected with the trowel plate, and by withdrawing the dovetail plate
from the said scat the said holder may be disconnected from the said
trowel plate.
Figure 1 represents in side elevation, and Figure 2 in end elevation a
plastering trowel constructed according to my Invention.
Figure 3 represents a plan, and Figure 4 an end elevation of the plate
of the trowel with the removable holder disconnected therefrom.
Figure 5 represents in side elevation, partly in section, the holder
separately, and Figure 6 represents an end elevation of the same. The
same letters of reference are employed to indicate the same parts in
each of the Figures.
a is the plate of the trowel, and b, 6º, is the holder, capable at pleasure
of being connected with and disconnected from the said plate a. The
said holder consists of two steel uprights or tangs 62, 63, between which
the wooden handle or grip b is supported by the screw pin or rod c,
the said pin or rod being secured near the tops of the said uprights or
tangs. On the bottom ends of the said uprights 62, 63, and made in one
piece therewith is a dovetail plate d; this dovetail plate d is taper,
being wider at one end than at the other end. The shape of the plate d
is best seen in Figures 2 and 6. On the upper side of the steel plate a
of the trowel a hollow dovetail or seat e is fixed by the rivets e. The
said hollow dovetail or seat e has somewhat of a trough-shape, and is of
a size and figure proper to receive the taper dovetail plate d on the
bottom of the holder.

page_text: of enabling the holder to be readily connected to or disconnected from
the trowel plate, substantially as described and illustrated.
In witness whereof I, the said Samuel Ault, have hereunto set my
hand and seal, this Twenty-sixth day of April, in the year of our
Lord One thousand eight hundred and sixty-nine.
Witness,
GEORGE SHAW.
SAMUEL AULT. (L.S.).