Improvements in Self-holding Double Eye-glasses.
Year: 1889

page_text: Date of Application, 20th Dec., 1889
Complete Specification Left, 24th Mar., 1890-Accepted, 26th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Self-holding Double Eye-glasses.
WILLIAM FORD. STANLEY 1 Railway Approach London Bridgo Surrey Optician
do hereby declare the nature of this invention to be as follows:
My invention consists in making eye-glasses adapted to hold on the face with a
rigid frame, constructed either in one piece of metal, or in pieces screwed, soldered,
or jointed together so as to make the frame when in use practically stiff, and solid, and
not as heretofore with a spring nose piece in fold to make the eye-glass portable, or
the bridge of the nose in two separate pieces with a spring to bring the eyes together
as in another form. By this form of rigid frame the eye pieces are kept at a fixed
uniform distance apart, and in axial line as in ordinary eye-glasses, and do not move,
or adjust together as in any form of folder or cross spring eye-glass. To hold this
frame on the face I place two spring plackets similar to those sometimes used in
folders inside the nose piece. These plackets by preference are pierced with a hole at
the upper end to pass over the rigid nose piece, and get steadiment for position
therefrom. The office of these plackets in this invention is not as in the folders merely
to adjust to the form of the nose leaving the spring of the folder to hold it on the
face, hui the plackets are constructed, or used so that they hold the entire frame by
their own springs without the use of any other, or exterior spring. The form of
the hand eye-glass of this invention may be that of the ordinary eye-glass front, but
without the temple sides, and with the addition of placket springs such as are put
upon folders, or the eye-glasses may be constructed with straight solid nose piece.
or the nose piece may be jointed to fold provided the joint, or joints are stiff, and
act in a direction to lock up by the action of the spring of the plackets pressing
the nose.
The principle of this invention being maintained of a consistently rigid
form of bridge piece when the eye-glass is in use with separate plackets which alone
spring to hold the eye-glass on the face.
Dated this 20th day of December 1889
H. T. TALLACK,
28, Hatton Garden, London, E.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Self-holding Double Eye-glasses.
WILLIAM FORD STANLEY Optician 13 Railway Approach London Bridge Surrey
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:-
-
My invention consists in making eye-glasses adapted to hold on the face with a
rigid frame constructed either in one piece of metal or in pieces screwed, soldered
or jointed together, so as to make the frame when in use practically stiff and solid, and
not as heretofore with a spring nose piece to fold to make the eye-glass portable, or
the bridge of the nose in two separate pieces with a spring to bring the eyes together,
as in another form. By this form of rigid frame the eye pieces are kept at a
fixed uniform distance apart and in axial line, as in ordinary eye-glasses and do
not move or adjust together as in any form of folder or cross spring-eye glass.
To hold this frame on the face I place two spring plackets, similar to those
sometimes used in folders inside the nose piece, these plackets by preference are
pierced with a hole at the upper end to pass over the rigid nose pieco and get
steadiment for position therefrom. The office of these plackets in this invention is
ID 71

page_text: .
not as in the folders merely to adjust to the form of the nose leaving the spring of the
folder to hold it on the face, but the plackets are constructed or used so that they
hold the entire frame by their own springs without the use of any other or exterior
spring. The form of the eye-glass of this invention is preferably constructed with
straight solid nose piece or it may be that of the ordinary front but without the temple
sides and with the addition of placket springs such as are put upon folders, or eye-
glasses, or the nose piece may be jointed to fold, provided the joint or joints are
stiff and act in a direction to lock up by the action of the spring of the plackets
pressing the nose. The principle of this invention being maintained of a consistently
rigid form of bridge piece when the eye-glass is in use with separate plackets
which alone spring to hold the eye-glass on the face. The necompanying drawings
will render my invention clearly understood. Fig. 1 is an elevation of the general
form of double eye-glasses of this invention. Fig. 2 is one half of a similar pair, but
with different shaped plackets. Fig. 3 is an end view of Fig. 2. Fig. 4 shows half
pair with another modification of placket. Fig. 5 is an end view of Fig. 4. Fig. 6
is an elevation of my invention applied to eye-glasses of the ordinary rigid form, but
without temple sides, fitted with my plackets. Fig. 7 is an end view of inner half of
Fig. 6. Fig. 8 is an end view of inner half shewing another modification of placket.
fitted to my straight bar bridge form. Fig. 9 shews the detail of connection of bar
bridge to frame of glass. Fig. 10 is a plan of bar bridge shown hent for special
purposes. Fig. 11. is a plan of adjustable bar bridge. Fig. 12 is a plan of jointed
bar bridge. The letters of reference correspond throughout the drawings with similar
parts. A is the bridge or bar which holds the two frames of the glasses rigidly in
position. B the plackets. C frames for glasses. D the connection of bar bridge to
glass frame and joint of glass frame. I is the locking arrangement of adjustable bar
bridge. is the joint in bridge bar to allow of folding.
It will be seen that in Fig. 1 the plackets are secured at their lower end and the
upper are free toerun over the bridge bar, the upper part of the spring being slotted
for this purpose, in Figs. 2 and the plackets are secured at the top and the bottom
part is slotted to slide under the screw guide. Figs. 4 and 5 shew the plackets secured
at the bottom, with a guide at the upper part for the slotted end to run in, in Figs. 6
and the plackets are secured at the bottom and the upper part is slotted to run each
side of the bridge piece, but in this case the slots are open at the top as the bridge
cannot be passed through the slot as in the bar bridge forms and the glass frames are
jointed at the sides. but these joints may be in any convenient place. Fig. 8 shows
The placket secured at the bottom, and the top slotted to run in guide. In Fig. 12.
shews the folding joint which will be seen works at right angles to the direction
that other folders do, this joint is either made to work stiff or may be fitted with an
internal spring, to keep rigid when open. I preferably make the glass frame joint as
shewn in Fig. 9 but this joint may be in any other suitable position and either the
bridge bar carried round to it or a separate block may he attached to the glass frame
to attach the bar bridge to. The bar bridge may be bent in any suitable form to suit
special circumstances a general form bent slightly forward is shewn at Fig. 10, and
it may be fitted with means for adjusting its length as shown at fig. 11. In this case
one half of the bar bridge is made hollow for the opposite half to slide into and when
set to the correct distance the whole is fixed rigid by the screw nut arrangement
shewn in sertion at E. By plackets I means the spring piece shewn at B in the
drawings. Various modifications may be made, always preserving the essential
features of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is:
-
1. In self holding double eye-glasses a consistently rigid and fixed form of
bridge piece with separate plackets which alone spring to hold the eye-glasses qu

page_text: 2. Self holding double eye-glasses as described in foregoing specification and
illustrated in the accompanying drawings.
3. The special frame joint and bridge piece connection as described at Fig. 9 of the
accompanying drawings.
4. Self holding double eye-glasses with stiffly jointed bridge piece fitted with spring
plackets as described.
5. Self holding double eye-glasses with adjustable bridge piece and fitted with
spring plackets as described.
T.: 0141 .....
1800
H. T. TALLACK,
28, Hatton Garden, London, E.C., Agent for Applicant.