IMPROVEMENTS IN TEETH BRUSHES
Year: 1881

page_text: LETTERS PATENT to Evelyn Pierrepont, D.D.S., L.D.S., Dental Surgeon, of
52, Conduit Street, Regent Street, in the County of Middlesex, for an Invention
of "IMPROVEMENTS IN TEETH BRUSHES."
PROVISIONAL SPECIFICATION left by the said Evelyn Pierrepont at the
Office of the Commissioners of Patents on the 14th November 1881.
EVELYN PIERREPONT, D.D.S., L.D.S., Dental Surgeon, of 52, Conduit Street,
Regent Street, in the County of Middlesex. IMPROVEMENTS IN TEETH
BRUSHES."
This Invention relates to an improvement in teeth brushes, and the object is to
make such brushes so as that the tufting will conform to the contour of the dental
arch, whether for the inside or for the outside thereof, and so that by giving a
partial rotary motion to the brush between the fingers and thumb whilst the brush
is in contact with the teeth the higher portions of the tufts of bristles which fit to
the enterstices of the teeth will perform an upward and downward sweeping action
in respect of the teeth for removal of fibrous or other portions of extraneous matter
that would escape the ordinary mere transverse brushing action.
The tufting of this brush is made with higher portions of the tufts of the bristles
with lower portions between them toward the handle portion of the brush for the
incisor, canine, and bicuspid teeth, and at the forward end of the brush short tufts
are provided between longer tufts to conform to the size of the molar teeth and
conformably to the contour of half of the dental arch, and the neck of the brush is
made with a bend for rendering the position of the handle convenient for the
holding and using of the brush and also affording clearance for the encisor teeth.
In the brush for outside of the teeth the end of the back is narrowed off to accom-
modate the closer approach of the gums and shorter length of the molar teeth, and
for the brush for inside of the mouth the back is narrow throughout.
The handle is faced off in order to allow of the fingers operating the partial
rotary motion of the brush for the sweeping action, or the handles may be round
and fluted, or grooved or roughed straight or spirally for effecting the convenient
holding.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Evelyn Pierrepont in the Great Seal Patent Office on the 13th May
1882.
EVELYN PIERREPONT, D.D.S., L.D.S., Dental Surgeon, of 52, Conduit Street,
Regent Street, in the County of Middlesex. IMPROVEMENTS IN TEETH
BRUSHES."
This Invention relates to improvements in teeth brushes, and the object is to
make such brushes so as that the tufts will conform to the contour of the dental arch,
whether for the inside or for the outside thereof, and so that by giving a partial
rotary motion to the brush between the fingers and thumb whilst the brush is in
contact with the teeth the higher portions of the tufts of bristles which fit to the
interstices between the teeth will perform an upward and downward sweeping
action in respect of the teeth for removal of fibrous or other extraneous matter
that would escape the ordinary transverse brushing action.
Figs. 1 and 2 represent brushes made according to this Invention tufted following
the contour of the outside of the dental-arch and the interstices between the teeth,
the neck of the handle being varied.
Figs. 1 and 2 represent brushes made and tufted following the contour of the
inside of dental-archi.
Fig. 3 is a diagram showing the application of these brushes, although-of-course-
-but-one brush will be used at one time.
Fig. 4 is a like view illustrating the sweeping cleansing action.
Fig. 5 represents an outside brush with the handle in relation to the tufted
portion so as that the hand in using the brush may be more conveniently away
from the face.
a are the higher portions of the tufts of bristles numbered 1, 3, 5, 7, and to 13 in
Fig. 1, and numbered 1, 3, 5, 7, and to 11 in Fig. 1, with lower tufts b between
them numbered 2, 4, and 6 in each of the said Figures (these are shown towards
the forward end or point of the brush as of one tuft, but several smaller ones may
be employed although it would add to the cost).
:
The tufts toward the handle portion of the brush are for the incisor, canine, and
bicuspid teeth, and at the forward end of the brush the short tufts b (one or more)
are provided between longer tufts to conform to the size of the molar teeth. The
juxtaposition of the brushes in Figs. 1, 1, and 2, 2º, and well illustrates this
description and the novel manufacture conformably to the contour of the inside
and outside of the half of the dental-arch.
At c. the neck of the brush is made with a bend for rendering the position of the
handle convenient for the holding and using of the brush and also affording
clearance for the incisor teeth. In the brush for outside of the teeth the end of
the back is narrowed off to accomodate the closer approach of the gums and shorter
length of the molar teeth, and for the brush for the inside of the teeth the back is
narrow throughout. As to the rows of tufting it may be remarked that the
number of tufts will vary necessarily according to the size and quality of the
brush, thus there may be one tuft at the point or two tufts, and two, three, or more
rows of tufts towards the double end, and so on. The handle in faced off, as seen
in the Drawings, in order to allow of the fingers operating the partial rotary
motion of the brush for the sweeping action, or the handles may be round and
fluted, or grooved, or roughed straight or spirally for the convenient holding
thereof.
It has also to be remarked that although I have specified for the best forms that the
neck and handles of the brush may properly take, nevertheless this tufting may be

page_text: applied to so-called straight handled brushes, and further, the special forms of the
necking of the brushes as shown may cause the material from which the handles
and backs are produced to be cut to waste, so that it may be desirable in cheaper
kinds to make the backs of the handles of separate portions and plug or otherwise
affix the same together.
Having now described the nature and particulars of the Invention in such wise
that the same may be readily carried into practical effect, I have to remark that I
am aware that irregularly tufted brushes, that is, pointed tufts for teeth brushes,
have been used for aiding the simple frictional or transverse brushing action, and
I am to be understood as excluding brushes so made and tufted from my claim
hereunder.
I claim,
Firstly. In teeth brushes the tapered and high and low tufts a and b conformably
to the contour of the incisor, canine, bicuspid, and the molar teeth, as and for the
purpose herein set forth and shown by the Drawings.
Secondly. In teeth brushes the tufting as described conformably to the inner and
outer contour of the half of the dental-arch, as set forth.
Thirdly. In combination with the specially tufted teeth brushes herein described
the bent neck c of the handle for operating the sweeping action of the tufts, as and
for the purpose set forth and shewn in the respective Figures of the Drawings.
In witness whereof, I, the said Evelyn Pierrepont, have hereunto set my hand
and seal, this Ninth day of May, in the year of our Lord One thousand
eight hundred and eighty two.
5 In presence of
WALTER A. BARLOW,
Patent Agent & Engineer,
6, St. Paul's Chyd.,
London, E.C.
EVELYN PIERREPONT. (L.S.)