Improvements in Nose Clips or Double Eye Glasses.
Year: 1893

page_text: Date of Application, 18th Apr., 1893
Complete Specification Left, 1st Dec., 1893-Accepted, 6th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in Nose Clips or Double Eye Glasses.
We, ROBERT PURDOм, and HENRY STOKES, trading as Purdom and Stokes,
of Great Tindall Street, in the City of Birmingham, Manufacturers, do hereby
declare the nature of this invention to be as follows: :-
<:
This invention relates to detail improvements in the nose clips or bridges of
double eye glasses or pince nezs," and of that type known in commerce as
astigmatic clips, or that order employed to rectify any accidental faults in the lens
of the eye, when the same are of such a nature that rays of light proceeding from
one centre do not converge to the same point.
In carrying out our invention, we connect the glass apertures of the frame, or
the frames for containing the lenses or glasses by a resilient bridge or frame, which
admits of the frames or sides opening out or closing in the same right line.
The said bridge consists of a frame of the one part composed of two parallel
bars disposed at short distances from each other, and with the outer ends connected
by a head or end, whilst the other and inner ends are connected rigidly together
by a like head or, end, and with a cranked stalk or stem proceeding from the middle
of the back of the said head and terminating at near the top of the frame or lens
carrier of the one part.
The lens or other carrier of the other part carries a single rod or bar, with a
head or stop at its inner end near to a like crank stalk connection as aforesaid.
The said stem or rod part takes and works through the middle of the outer end of
the other part, and with a cross head, guide or slide taking upon and coming
between the double and parallel rod members of the other part, and with the stem
also coming between the said parallel members, and encircled by a coiled spring,
so that the distances between the lens or glass frames of the connected together
two-part frames are capable of being varied by the sliding of the component parts
constituting the bridge one upon each other.
Thus, by opening out the parts, the spring confined between the inside ends of
the sliding parts is compressed, and the stored up energy created by the compression
takes the said parts back to their normal positions on being released. Thus the
gripping is performed by the said two-part members being drawn together by the
tension of the spring.
The action of the sliding parts is smooth, the spring is protected, and the whole
of the working parts do not bend and have cross rigidity imparted to them, without
the same being liable to become deranged or disturbed by use, whilst the liability
to breakage is minimised.
In carrying out a further form of our invention, we provide each frame or part
with like single bars, with heads or slides at their terminal ends, which meet or are
opposed to each other, and which rods take through the middles of the closed ends
of an independent frame, composed of two parallel bars disposed at short distances
from each other and with the rods or bars of the frames as aforesaid, passing and
working between the bars of the independent frame, and with their heads or ends,
which are eyed or seated, working upon and within the space disposed between the
bars of the said independent frame.
Encircling the said bars of the frames, and disposed between the inside ends of
the independent frame, and the inside parts of the heads of the adjustable frames,

page_text: are coiled springs, which are compressed or expanded in unison on the two part
frames being opened out or allowed to close.
Deted thin 17th dow of Anvil 1902
ROBERT PURDOM,
HENRY STOKES,
By Henry Skerrett,
Agent for Applicants.
Improvements in Nose Clips or Double Eye Glasses.
We, ROBERT PURDOM and HENRY STOKES, trading as Purdom and Stokes,
of Great Tindall Street, in the City of Birmingham, Manufacturers, 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:―
66
This invention relates to detail improvements in the nose clips or bridges of
double eye glasses or pince nezs," and of that type known in commerce as
astigmatic clips, or that order employed to rectify any accidental faults in the lens
of the eye, when the same are of such a nature that rays of light proceeding from
one centre do not converge to the same point.
In carrying out our invention, we connect the glass apertures or rims of the
frame, or the frames for containing the lenses or glasses by a resilient bridge
or frame, which admits of the frames or sides opening out or closing in the same
right line.
The said bridge consists of a frame of the one part composed of two parallel bars
disposed at short distances from each other, and with the outer ends connected by a
head or end, whilst the other and inner ends are connected rigidly together by
a like head or end, and with a cranked stalk or stem proceeding from the middle of
the back of the said head and terminating at near the top of the frame or rims
of the one part.
The lens or other carrier of the other part carries a single rod or bar, with a
head or stop at its inner end near to a like crank stalk connection as aforesaid.
The said stem or rod part takes and works through the middle of the outer end of
the other part, and with a cross head, guide or slide taking upon and coming
between the double and parallel rod members of the other part, and with the stem
also coming between the said parallel members, and encircled by a coiled spring, so
that the distances between the lens or glass frames of the connected together two-
part frames are capable of being varied by the sliding of the component parts
constituting the bridge one upon each other.
Thus, by opening out the parts, the spring confined between the inside ends of
the sliding parts is compressed, and the stored-up energy created by the compression
takes the said parts back to their normal positions on being released. Thus the
gripping is performed by the said two-part members being drawn together by the
tension of the spring.
The action of the sliding part is smooth, the spring is protected, and the whole
of the working parts do not bind and have cross rigidity imparted to them, without
the same being liable to become deranged or disturbed by use, whilst the liability to
breakage is minimised.
In carrying out a further form of our invention, we provide each frame or part
with like single bars, with heads or slides at their terminal ends, which meet or are
opposed to each other, and which rods take through the middles of the closed ends
of an independent frame, composed of two parallel bars disposed at short distances
from each other, and with the rods or bars of the frames as aforesaid, passing and
working between the bars of the independent frame, and with their heads or ends,

page_text: which are eyed or seated, working upon and within the space disposed between the
bars of the said independent frame.
Encircling the said bars of the frames, and disposed between the inside ends of
the independent frame, and the inside parts of the heads of the adjustable frames,
are coiled springs, which are compressed or expanded in unison on the two part
frames being opened out or allowed to close.
Figure 1 of the accompanying drawing represents in front elevation a double
eye glass or nose clip fitted or provided with our new resilient bridge constructed
and arranged according to one form of our invention.
Figure 2 represents a topside edge view of the same partly in section, and with
the parts of the said resilient bridge in the positions which they normally assume.
The sectional parts show how the two-part members slide one within the other in
order to guide the one part parallel within the other part.
Figure 3 represents a topside edge view of Figure 1, and alike unto Figure 2, but
with the guide parts not being in section and the rims drawn outwardly with the
spring compressed between the bearing members of the resilient bridge.
Figure 4 represents detail parts of the bridge separately.
In Figures to 4, the frame consists of rims or glass apertures a, a', united
or connected together by a resilient bridge or a compound frame b, which admits
of the component parts of the said bridge or frame contracting or opening out in a
direct line according to the breadth of a nose upon which they may be worn.
This said bridge is made up or composed of two parallel disposed working
and sliding bars or frames or of two parallel parts c and d, the one part c,
consisting of a single rod member c', having a fixed cross head or cross end c²,
with guide holes 3, through it, wherethrough parallel and compound rods d', of the
other part d, coming upon the two opposite sides of the single rod member c', take
and slide.
The inner end of the part c, has a collar, shoulder or stop c*, and rear of this stop
is a cranked stem part es, which joins the part e to the left-hand rim. The rods d₁,
of the compound slide d, are terminated by a cross head or bar d², having a hole d³,
through its middle, wherethrough the single rod member c', of the part c, takes and
slides. The rods at the inner end of the part d, are united by a cross bar or end d',
and rear of it is a cranked shank , which unites the said part d, to the right
hand rim.
Located between the inner faces of the heads or cross heads c², d², of the
parts and d, constituting the compound and resilient sliding bridge, and
encircling the rod member c', is a coiled spring e, with its ends abutting against
the said ends of the parts as aforesaid, and tending to press them asunder, and
so automatically bring the rims, with the jointed nose bearing clips f, carried by
them, closer together, hence the clipping of the nose.
Figure 5 represents a modified form of our invention.
Figure 6 represents detail parts of the same separately.
In this arrangement, two springs are employed located between fixed and
relatively moving heads or ends of the component parts constituting the resilient
bridge.
Thus, a, a are the rims, connected to each other by the resilient bridge b,
composed of a middle frame d, consisting of parallel rods d', united at their ends by
cross heads d, and with the said rod members d', taking and sliding through
holes formed within the heads or ends 3, of the sliding parts c, the rod.
members c', of which pass through holes d³, in the said ends d₁, of the middle
member d, which, relative to the other and sliding parts, remains quiescent.
Disposed at the junction of the cranked shank parts c5, of the rod members c', with
the rims a, a', are collar stops c, and disposed between the inside faces of the
end parts c, d, of each side, are coiled springs e, which tend to press the sliding
parts inwardly, hence the bringing together of the jointed nose bearing clips f.
Figure 7 represents a modification of Figures 1 to 4.
In this arrangement, the single rod member c', is screwed at one end, and a

page_text: travelling nut g, takes upon it, and which nut, which constitutes a bearer for one
end of the spring e, to come against, is capable of traversing upon the said screwed
part, and so increasing or decreasing the tension of the same, according to the
position of the said nut.
By arranging the sliding members with single and compound rods respectively,
the adjustable frames are made to approach and recede from each other in perfect
union and have no tendency to rock or rotate one upon another.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
First In nose-clips or double eye glasses having resilient bridges, making
up or constructing the bridge part of the said articles of two sliding and opposed
parallel-working members, moving in opposite directions, and with the ends of
the said two-part members having located between them a coiled spring or
coiled springs for the separation of the two-part members and the bringing
together of the adjustable frames of nose clips, substantially as described and
set forth.
Secondly-In adjustable nose-clips or double eye glasses, making up the bridges
of a sliding member part c, and a sliding member part d, the former made up of
frame parts c', c², c³, e, and the latter of frame parts d', d², d³, d, and with a coiled
spring e, disposed between the parts c, d, substantially as described and set forth
in Figures 1, 2, 3, 4 and 7.
Thirdly: In adjustable nose-clips or double eye glasses, the combination with
the resilient bridge of the specific construction as set forth in Figures 1, 2 and 3, of
a nut 9, taking upon a screwed part of the middle member, substantially as described
and set forth in Figure 7.
Fourthly In adjustable nose clips or double eye glasses, making up the bridges
of single rod members directed from the rims, and with the stems of the same
taking through holes in the ends of a middle disposed double-barred frame, and with
the cross ends of the said single rod members having holes through them, which
take and slide upon the bars of the said double-barred frame, and which parts are
arranged, combined and operate and co-operate substantially as described and set
forth in Figure 5.
Fifthly In nose-clips or double eye-glasses, the improvements in, and in the
construction, arrangement and combination of the parts of the same, substantially
as herein described and set forth.
Dated this 29th day of November 1893
ROBERT PURDOM,
HENRY STOKES,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicants.