Improvements in Eye-glasses or spectacies.
Year: 1895

page_text: Date of Application, 30th Mar., 1895
Complete Specification Left, 12th Nov., 1895-Accepted, 25th Jan., 1896
Improvements in Eye-glasses or spectacies.
I, LUIGI FEDELE COMITTI, of 69 Mount Pleasant; Gray's Inn Road, in the
County of London, Scientific Instrument Maker, do hereby declare: the nature of
this invention to be as follows:-
My invention relates to that class of eye-glasses or spectacles known generally
as "spectaclettes "in which the two frames are connected together at the upper
part by two rods which are suitably guided and around which is placed a coiled or
helical spring which tends to hold the two frames close together and thus presses.
the bearing pieces against the nose.
I have found in practice that dirt is liable to get into the spring, and between
the rods and guides and thus prevent the spectacles or eye-glasses from working 'as
well as they should do. They are also somewhat weak at this part.
According to my invention I enclose the spring within a tube or tubes, which
prevents any dirt or dust getting into or between the working parts and strengthens
the same.
When employing a single tube it is fixed at one end to the end of
one rod; thus when the frames are pulled apart the spring is caused to enter
the tube.
In some cases I. attach a tube to the end of each rod, in which. case one tube is
sufficiently large to slide or telescope over. the other.. Or. I. may attach a small
tube to each of the ends of.the rods near the frames, which will join in the centre
when the spectacles are out of use, but which will allow a portion of the spring to
be seen between them when the frames are drawn away from each other: as in use.
In this latter forin I may make the tubes to overlap each other in the centre,. so:
that when the spectacles are in use no part of the spring can be seen..
20th day of March 1805
HARRIS & MILLS,,
23 Southampton Buildings, London, W.C., .Agents:
Improv
I, LUIGI FEDELE. COMITTI of 69 Mount Pleasant, Gray's Inn Road in the
County of London, Scientific Instrument Maker, 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 relates to that class of eye glasses or spectacles known generally
as "spectaclettes" in which the two frames are connected together at the upper
part by two rods which are suitably guided and around which is placed a coiled or
helical spring which tends to hold the two frames close together and thus presses
the bearing pieces against the nose. -
I have found in practice that dirt is liable to get into the spring and between the
rods and guides and thus prevent the spectacles or eye glasses from working as
well as they should do. They are also somewhat weak at this part.

page_text: In carrying my invention into effect I enclose the spring within a tube which
prevents any dirt or dust getting into or between the working parts.
My invention is illustrated in the accompanying drawings in which
Figures and 2 are two elevations of my improved spectaclette showing
respectively the frame in its closed position and in a somewhat extended position.
Fig. 3 is a longitudinal section, Fig. 4 is a cross section on the line 4.4 of
Fig. 3 drawn to a larger scale, of the parts shown in Figures 1 and 2 connecting
together the eyes or bows.
Fig. 5 is an elevation and Fig. 6 is a cross section on the line 6.6 of Fig. 5
showing separately one of the rods forming the "bridge."
a. a are the eyes or bows. b.b are the lenses or glasses, c. c are arms attached to
the eyes or bows and d. e are rods connected to such arms and provided at their
outer ends with loops de fitting respectively over the rods e. d. The above
construction of parts, supposing the rods d. e to be of solid semi-cylindrical form,
is well known and forms no part of my invention. Instead however of forming
the rods d. e of solid semi-cylindrical form as heretofore I construct them of hollow
semi-cylindrical form so that when fitted with their hollow sides towards each other
they shall form a complete tube. Within the free ends of these hollow semi-
cylindrical rods d. e I fix stops d' e² which respectively closely fit the hollows of
the rods e. d thus forming closed ends to the hollow cylinder formed by the juxta-
position of such rods and within said hollow cylinder I place a loose cylindrically
coiled spring the ends of which act against the stops d'e³.
Thus by pulling the eyes or bows a. a apart the spring fis compressed and when
permitted the eyes or bows will be pressed towards each other by the spring.
I would here remark that I am aware that spectaclettes have heretofore had a
cylindrically coiled spring placed around a rod and enclosed within a tube forming
the bridge or part thereof I do not therefore claim such an arrangement.
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. The improved construction of spectacles or eye glasses substantially as herein
shown and described.
2. In eye glasses or spectacles of the character herein referred to, the construction
of the bridge of hollow semi-cylindrical sliding rods provided at their free ends
with stops and forming a complete tube or cylinder within which a free cylindrically
coiled spring is placed substantially as herein shown and described and for the
purpose stated.
"
3. In eye glasses or spectacles of the character herein referred to the enclosing
of a loose or free spring within a tube or hollow " " bridge formed of two hollow
semi-cylindrical sliding rods provided with stops against which the ends of the
spring act substantially as herein shown and described and for the purpose stated.
Dated November 12th 1895.
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.