Year: 1897

page_text: I GEORGE CAMPION BATEMAN, of Ellesmere, Westwood Avenue, Timperley, in
the County of Chester, Optician, do hereby declare the nature of this invention
to be as follows:.
:-
The object of this invention is to render an astigmatic sliding bar 'pince-nez"
readily adjustable to fit, without undue pinching or pressure, on the nose of any
wearer.
The invention is equally applicable to any known form of astigmatic sliding bar
'pince-nez, and it consists in providing the "pince-nez" with an adjustable stop
so arranged that the two lenses can not approach each other beyond a certain.
point, and the placquets cannot therefore pinch the nose more than required to
hold the pince-nez in place.
In applying my invention to a three bar astigmatic pince nez, for example, I
provide the central sliding bar which carries one of the lenses with a screw thread
at one end, and an adjusting nut outside the bridge picce at the end of the two
outer bara to which the other lens is attached; and thus the spring can only cause
the placquets which nip the nose to approach sufficiently near to hold the pince-
nez in place, the minimum distance between these two being regulated by the
adjusting nut according to the width of the nose of the wearer.
I
noted thin 05th day of T 1907
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
I GEORGE CAMPION BATEMAN, of Ellesmere, Westwood Avenue, Timperley, in
the County of Chester, Optician, 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 :-
The object of this invention is to render an astigmatic sliding bar 'pince-nez'
readily adjustable to fit without undue pinching or pressure on the nose of any
wearer.
"
The invention is equally applicable to any known form of astigmatic sliding
bar "pince-nez or eye-glasses, and it consists in providing the pince-nez with an
adjustable stop so arranged that the two lenses cannot approach each other beyond
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page_text: a certain point and the placquets cannot therefore pinch the nose more than is
required to hold the pince-nez in place.
In applying my invention to a three bar astigmatic pince-nez, for example, I
provide the central sliding bar which carries one of the lenses with a screw
thread at one end and an adjusting nut outside the bridge piece at the end of the
two outer bars to which the other lens is attached, and thus the spring can only
cause the placquets which nip the nose to approach sufficiently near to hold the
pince-nez in place, the minimum distance between these two being regulated by
the adjusting nut according to the width of the nose of the wearer.
My invention will be readily understood from the annexed drawings showing
the application thereof to a three bar astigmatic pince-nez as before described.
Fig. 1 is a front view and Fig. 2 a plan view of such a pince-nez, and Fig. 3
is an enlarged plan view of the regulating device applied to the three bars thereof.
The lens is carried by the bow attached to the two bars bb, the leus a' is
carried by that attached to the central bar c.
This bar is screwed as seen at and the adjusting nut d is applied outside
the bridge piece 62 and thus by adjusting the nut d the action of the spring e
which is fitted between the bridge piece 62 and the cross bar el fixed to the bar c is
limited, so that undue pinching of the wearer's nose between the placquets f is.
avoided.
:
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
1
The combination with the sliding bar or bars of an astigmatic pince-nez or eye-
glasses, of a screw and an adjusting nut (or other equivalent adjustable stop) for
limiting the action of the spiral spring so that no more pressure can be given to
the nose of the wearer than is requisite to hold the 'pince-nez' in place.
Dated this 9th day of August 1897.