AN IMPROVED MODE OF MAKING HEARTH BRUSHES
Year: 1803

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I; EDWARD
THOMASON, of Birmingham, in the County of Warwick, Manufacturer, send
greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of His United Kingdom of Great Britain
and Ireland, bearing date at Westminster, the Thirty-first day of October, in the
forty-fourth year of His reign, did give and grant unto me, the said Edward
Thomason, my executors, administrators, and assigns, His especial licence, that
I, the said Edward Thomason, my executors, administrators, and assigns, during
the term of years therein expressed, should and lawfully might make, use, excr-
cise, and vend, within England and Wales and the Town of Berwick-upon-
Tweed, my Invention of "AN IMPROVED MODE OF MAKING HEARTH BRUSHES;" in
which Letters Patent there is contained a proviso obliging me, the said Edward
Thomason, under my hand and seal, to cause a particular description of the
nature of my said Invention, and in what manner the same is to be performed,
to be enrolled in His Majesty's High Court of Chancery within one calendar
month next and immediately after the date of the said recited Letters Patent,
as in and by the same, relation being thereunto had, may more fully and
at large appear.
NOW KNOW YE, that in compliance with, and agreeable to the true
intent and meaning of, the said proviso, in the said Letters Patent contained,
I, the said Edward Thomason, do hereby declare that the following is a par-
ticular description of the nature of my said Invention and methods and
improvements in the mechanism of hearth brushes, both in respect to principle
and the way and means in which the same may be performed, that is to say,-

page_text: With respect to principle, I cause the bristles to be hid or concealed in the
case, tube, or stail (of what I call the "non constat " hearth brush) by the
action or movement of pulling towards you the stail, tube, or case, or pushing
from you the stail, tube, or case, or each or any of them, as circumstances may
require; and I cause the bristles to be ejected or thrown out into a con-
venient posture of the said case, tube, or stail, by the aforesaid action or
movement (that is to say), by pushing from you or pulling towards you the
stail, tube, or case, or each or any of them, as circumstances may require.
Now, I do declare the above-mentioned principle comprehends the real
object of my Invention; and in order for the better comprehension and under-
standing how the aforesaid may be reduced to practical use, I do hereby
further declare, that altho' I vary the mode of construction by a variation of
circumstances to produce the said effects, and obtain the main purpose
intended, that is to say, of concealing the bristles from the eye when the brush
is not being used, yet, I principally adhere to the method herewith described,
as being fully answerable to what is required, and best calculated to be
understood from the Drawings and descriptions thereof. And the same is
described in the three Drawings and nine sections represented in the margin
of these Presents, and the alphabetical letters in the nine sections refer to
their respective parts in the Drawings.
Drawing No. 1, represents the hearth brush in a quiescent state, or after it
has been used and shut up, the bristles being concealed in the case x.
Drawing No. 2. represents the hearth brush ready for use, the bristles
being ejected or thrown out of the case x by thic movement of the tube A,
and the stail of the brush lengthened. Section No. 1, is the outward tube,
and slides upon section No. 2, which is an inner tube. Section No. 2, at F,
is screwed or attached to the brush case, section No. 6, at P. Sections Nos. 3,
4, and 5, are two racks and a cog wheel, all of which work or move together
within the inner tube, section No. 2, as represented' in section No. 8, that is
to say, the cog wheel, section No. 4, is fixed by a pin in the inner tube, section
No. 2, and moves on two centers, at E, E, in section No. 2. Section No. 3,
is a rack, to which the brush No. 7 is attached at K, and moves from G to H,
on the cog wheel, section No. 4. Section No. 5 is another rack which moves
from N to O on the cog wheel, section.No. 4, and the end L is fastened to
the end of the handle tube, section No. 1, as at a. It is evident, then,
that when the cog wheel is fixed in the inner tube, section No. 2, and the
two racks properly placed, as in section No. 8, that by pulling the end of the
rack L, it will give action to the cog wheel scction No. 4, which cog wheel in
moving gives action to the other rack, section No. 3; and if the rack and cog

page_text: wheel are truly made, the rack, section No. 3, will recede from you just as
much as the other rack, section No. 5, will move towards you. It is by these
means that the stail of the brush is lengthened, and the bristles forced out of
the case, section No. 6, into a convenient situation for use! Section No. 9 is
another manner of making the internal movements to obtain the same motion,
and answer the same end; that is to say, that instead of racks and cog wheel,
as in section No. 8, I use two (or a greater or less number) rollers, drums,
or pulleys, which move upon their centers at S, S, S, S. A band I, made of
leather, or any other substance that will answer the purpose, is put round
these rollers and sewed or fastened at it's two ends as tight as convenient.
The leg or shaft L, U, U, is fastened to one side of the band, and the leg W
to the other side of the band. The leg or shaft L, U, U, then becomes the
acting leg, or that which is joined to the handle A, as at section No. 1, in the
same manner as section No. 5 is attached to the handle A, and the leg W
becomes the brush leg, to be attached to the brush part, section No. 7, as in
manner represented before by section No. 3. It appears evident then, that if the
leg L is pulled, the band will move round upon the rollers in a space nearly as
great as the distance from one rollor to another, consequently the leg L will
have moved out of the tube D, F, the like space; and, on the contrary, the
leg W and K will recede or eject from the other end of the tube nearly the
same distance.
.
Drawing No. 3 shews how the brush may be hid or concealed in the case,
tube, or stail a, by a more simple and less expensive method; that is to say,
the tube A, A, A, is small enough to slide within the tube C, C, and long
enough to reach the roof or upper part of the brush, and attached thereto as
at Q; consequently, if you lay hold of the tube A, A, A, at a, and pull it
upwards or towards you, the bristle or brush part, being attached to it, must
necessarily slide into the case x, and by returning the tube A, A, A, into the
tube C, C, it will naturally force the bristles out of the case a, as is exemplified
in the Drawing No. 3. And I do hereby further declare that these hearth
brushes may be made of any kind of metal, such as iron, steel, copper, brass,
or any other metal, or composition of metals, or any kind of wood, bones,
ivory, paper, or any other substance or composition of substances that may
be found sufficiently strong and proper for the purpose or purposes of manu-
facturing the hearth brushes.
In witness whereof, I, the said Edward Thomason, have hereunto set
my hand and seal, this Ninth day of November, in the year of our
Tard One thousand eight hundred and thron
EDWARD THOMASON. (L.s.)

page_text: AND BE IT REMEMBERED, that on the same Ninth day of November,
in the year above mentioned, the aforesaid Edward Thomason came before
our Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained, in form above written.
And also the Specification aforesaid was stamped according to the tenor of
the Statute in that case made and provided.
Insolled the Nineteenth das of November in the year above written.