Year: 1896

page_text: I, SALOMON HUMMEL, Proprietor of the Firm of A. Schweizer & Co., Kopernikus-
gasse 11, Vienna 6, in the Empire of Austria, Optician, do hereby declare the
nature of this invention to be as follows:-
In all cases, but particularly where the glasses of pince-nez, single eye-glasses
or spectacles are to be capable of being exchanged, it is desirable that the frame
for the glass shall be arranged so that it can be opened in a simple and expeditious
manner by any person.
According to the present invention this is effected by arranging on the joint
of the frame a pivoted locking lever which permits the opening and closing of
the frame, so that, when the lever is disengaged, the frame will either be entirely
open or can at least be opened so far that the glass may be inserted.
The ends of the frame are in one arrangement connected by the loop for the
attachment of the cord; at one end I provide a pin which in the closing engages
with a corresponding hele in the other end. On one of the parts is arranged a
locking lever adapted to turn about a suitable pivot, a groove or notch in the said
lever corresponding with a nose or projection on the other part in such a manner
that, on pressing the lever in one direction, the ends appear to be connected,
whilst in the other case the frame springs asunder notwithstanding the said loop
to such an extent that a glass may be inserted. When, as in the case of pince-nez,
there is no loop, or when, as in the case of spectacles, there is a hinge connected
with the side bars of the spectacles, the parts are opened completely, and in the
latter case the hinge-pin remains on one of the parts when it is pulled from the
support of the other part.
Dated this 3rd day of Ontah 1000
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.
ye-glasses.
I, SALOMON HUMMEL, Proprietor of the Firm of A. Schweizer & Co., Kopernikus-
gasse, Vienna 6, in the Empire of Austria 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:-
In all cases but particularly where the glasses of pince-nez, single eye-glasses
or spectacles are to be capable of being exchanged, it is desirable that the frame
Pi S

page_text: for the glass shall be arranged, so that any person may open it in a simple and
expeditious manner and so that the glass will not be deformed nor will anything
unusual be noticeable in the appearance of the whole arrangement.
According to the present invention this is. effected by arranging on the joint
of the frame a pivoted locking lever which is so embedded within the frame as 5
to be concealed from view and which permits the opening and closing of the frame
the said lever being arranged to embrace or grasp a nose or projection on the
corresponding part of the frame, so that when the lever is disengaged the frame
will either be entirely open or can at least be opened so far that the glass may be
inserted.
In the accompanying drawing I have shown two arrangements.
Figure 1 shows, partly in section and in the open position, a frame of the kind
that can be only partially opened.
Figure 2 shows the same closed.
Figure 3 shows, partly in section and in the open position, a frame of the kind
that can be entirely opened.
Figure 4 shows the same closed.
In the arrangement shown in Figures 1 and 2, the ends, of the frame are
connected by the loop for the attachment of the cord; at one end I provide
apin d which in the closing engages with the corresponding hole e in the other
end a. On one of the parts 6 is arranged a locking lever g concealed in the fitting
or frame and adapted to turn about a suitable pivot f, a groove or notch h in the
said lever corresponding with a nose or projection i on the other part a in such
a manner that, on pressing the lever y in the direction indicated by the arrow,
the ends a, b appear to be connected, whilst, on pressing the said lever in the other
direction, the frame springs asunder notwithstanding the said loop c to such an
extent that a glass may be inserted.
When, as in the case of pince-nez, there is no loop, c, or when, as in the case
of spectacles, there is a hinge connected with the side bars of the spectacles,
(see Figures 3 and 4), the parts a and b are opened completely, and in the latter
case the hinge-pin remains on one of the parts when it is pulled from the support
of the other part.
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:-
For eye-glass or spectacle frames, a novel locking device, characterized by a
locking lever g concealed in the frame, pivoted at one of the ends b of the said
frame and adapted to engage with a nose or projection on the other end a and
likewise concealed from view.
Dated the 23rd day of June 1907
1
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.