Year: 1895

page_text: Date of Application, 28th Aug., 1895
Complete Specification Left, 28th May, 1896-Accepted, 4th July, 1896
протошелю и крестастер,
I, WILLIAM BERTHOLD INNE, of 26, Oldhall Street, Liverpool, Colliery
Agent, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of spectacles, and has
for its object to obviate certain disadvantages attending their use.
It is the common experience of persons who wear spectacles that great dis-
comfort is met with when it is desired or necessary to stoop or hold the head at an
inclination and yet be able to look or see through the lenses in a horizontal
direction, as is frequently the case in billiard playing, rifle shooting, reading, and
on many other occasions. For instance, in stooping to a billiard table, or when in
the prone position at rifle shooting, it is necessary to bring the head to a vertical
position in order to look through the lenses horizontally.
According to this invention the lenses of spectacles are mounted in their
supporting frames upon pivots or trunnions in such a manner that they will remain
in the vertical plane irrespective of the inclination at which the head of the wearer
may be.
The lenses may be caused to retain a vertical position by swivelling or pivotting
them above their centre of gravity, or by the addition of weights to their lower
portions.
The method of so swivelling the lenses of spectacles may vary according to the
use to which the wearer wishes to put them. For billiard playing and the like,
where the head is bowed, the upper half rims of the frames may be dispensed with ;
and for reading and the like, where the head is usually thrown back, the lower
half rims may be dispensed with.
Means may be provided for raising and lowering the lenses in their bearings, i.e.,
in stooping or when the head is bowed, the lenses may be raised in their frames,
and lowered when the head is thrown back-as in reading and the like. This may
be accomplished by providing two or more sockets for the trunnions of the lenses,
provision being made for the trunnions being pushed up or down into one or other
pair of sockets. Means are also preferably provided for locking or retaining the
lenses in any desired position, so that the spectacles become fixed lens spectacles,
which may consist in providing the trunnions with "flats"
adapted to be gripped by the supporting frame.
Dated this 27th day of August 1895.
or a square surface
J. A. COUBROUGH,
Registered Patent Agent,
10 St. George's Crescent, Liverpool, Agent for the Applicant.
Improvements in Spectacles.
I, WILLIAM BERTHOLD IHNE, of 26, Oldhall Street, Liverpool, Colliery
0 Agent, do hereby declare the nature of the said invention and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement :-
This invention relates to improvements in the construction of spectacles, with
the object of obviating certain disadvantages attending their use.

page_text: It is the common experience of persons who wear spectacles that great dis-
comfort is met with when it is desired or necessary to stoop or hold the head at an
inclination and yet be able to look or see through the lenses in a horizontal
direction, as is frequently the case in billiard playing, rifle shooting, reading, and
on many other occasions. For instance, in stooping to a billiard table, or when in
the prone position at rifle shooting, it is necessary to bring the head to a vertical
position in order to look through the lenses horizontally.
According to this invention the lenses of spectacles are mounted in their
supporting frames upon pivots or trunnions in such a manner that they will remain
in the vertical plane irrespective of the inclination at which the head of the user
may be.
In the drawing hereto annexed Figure 1 shews a pair of spectacles constructed
according to this invention. In this example a represents the frame of the
spectacles, and b the lenses thereof. The frame a is fitted with four pivots c which
enter corresponding cavities formed in the side of each lens. The said cavities are
above the centre of gravity of each lens, in order that the lenses will hang upon
their pivots in the vertical plaue irrespective of the inclination which the frame a
may assume.
The spectacles shewn in Figure are adapted for use in cases where the head of
the user is bowed as in billiard playing, and for this purpose the frame a is disposed
beneath the lenses b, in order that it will not obstruct the vision; but for the
purpose of reading or the like, when the head is frequently thrown back, the
frame a will be disposed above the lenses b, with the same object.
Means may be provided for raising and lowering the lenses b in their frame a,
by which the lenses may be raised in their frame when the user of the spectacles is
stooping or his head is bowed, and lowered when the head is thrown back, as in
reading. This may be accomplished as shewn in Figure 2 (front view) and
Figure 3 (side view), by providing two or more sockets d in the frame a for the
trunnions e of the lenses b, which in this case are rivetted to the lenses.
bifurcating the frame a, as shewn, the trunnions may be pushed into one or other
pair of sockets d.
By
Means may also be provided for locking or retaining the lenses in one position.
Such means are shewn in Figure 4 (front view) and Figure 5 (side view). In this
modification I provide the frame a with three pairs of sockets d, the central pair
being approximately square or rectangular in shape, and I give the trunnions e a
section approximating a square or rectangle. The frame a is bifurcated as before,
which allows of the trunnions being pushed from one to another pair of sockets d
according to the use to which the spectacles are put. In the upper and lower
sockets the trunnions e are free to revolve, whilst in the central sockets & the
approximately rectangular trunnions e are locked.
In the modifications shewn in Figures 2 to 5 the inner trunnions are preferably
carried upon a bifurcated socket piece fitted to the bridge of the spectacles.
In another modification, shewn in Figure 6, I adapt the outward trunnion e of
each lens to fit somewhat tightly in its socket d, and I form on said trunnions e a
milled head by which the lenses may be turned to any angle to suit the use to
which the spectacles are-for the time being—being put.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. For the purpose of adjusting the plane of spectacle lenses to the line of
vision, the method of pivotally supporting such lenses in their frame, substantially
as herein described.
2. For the purpose of retaining spectacle lenses in the vertical plane irrespective
of any inclination which their frame may assume, supporting such lenses above
their centre of gravity upon pivots fitted in said frame, substantially as herein
described with reference to Figure 1 of the drawings.

page_text: 3. The device whereby the trunnions of pivotted spectacle lenses may be raised
or lowered in their supporting frame, consisting of the sockets d in a bifurcated
frame a, substantially as, and for the purposes, herein described with reference to
Figures 2 and 3 of the drawings.
4. The device whereby the trunnions of pivotted spectacle lenses may be raised
or lowered or locked in their supporting frame, consisting of the sockets d in a
bifurcated frame, one pair of which sockets are of the same section as the said
trunnions, substantially as described with reference to Figures 4 and 5 of the
drawings.
5. The arrangement of pivotted spectacle lenses whereby such lenses may be
turned in their frame perpendicular to the line of vision, substantially as herein
described with reference to Figure 6 of the drawings.
Dated this 27th day of Mon 1806
J. A. COUBROUGH,
Registered Patent Agent,
10 St. George's Crescent, Liverpool, Agent for the Applicant.