SORTANT TO Adjustable to either Long or Short Distance Vision.
Year: 1886

page_text: Date of Application, 15th Dec., 1886.
Complete Left, 15th Sept., 1887
Complete Accepted, 18th Oct, 1887
SORTANT TO
Adjustable to either Long or Short Distance Vision.
We, JOHN DAY, of 7 Adelphi Place, Preston, in the County of Lancaster, Coach-
builder, and WILLIAM CARTWRIGHT, of 13 Jordan Street, in the same town, Óptician,
do hereby declare the nature of this invention to be as follows:-
According to this invention we provide an ordinarily constructed pair of spectacles
having glasses or lenses suitable for long distance vision with an additional pair of
glasses or lenses hinged or pivotted on the upper edges of the rims of the first pair
in such manner that the second pair may be turned upwardly out of the way or may
be turned downwardly so as to be in front of the first pair and in combination there-
with to produce the required focal length for short distance or reading vision. The
upper edges of the rims of the first pair carry the socket part of the hinges; the
second pair being mounted on a spindle which has attached to it in a parallel line
the pivots or pins which may be readily passed into the hinge sockets or removed
therefrom as desired. By making the second pair readily detachable and replaceable
as described facilities are afforded for changing and adapting to each other in our
improved double spectacles glasses or lenses of varying powers so as to produce the
focal lengths required.
The spindle (carrying the second pair of glasses or lenses) projects somewhat at
one side and has upon its extremity a small disc which may be taken between the
finger and thumb and rotated so as to cause the second or front pair of glasses to
be turned up or down and thus change the focal length for either long or short
distance vision without requiring the removal of the spectacles from the face of the
wearer.
TAL: 15th
1000
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Spectacles having Double Glasses or Lenses
Adjustable to either Long or Short Distance Vision.
We, JOHN DAY, of 7 Adelphi Place, Preston, in the County of Lancaster, Coach-
builder, and WILLIAM. CARTWRIGHT, of 13 Jordan Street, in the same town, 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:
According to this invention we provide an ordinarily constructed pair of spectacles
having glasses or lenses suitable for long distance vision with an additional pair of
glasses or lenses hinged or pivotted on the upper edges of the rims of the first pair in
such manner that the second pair may be turned upwardly out of the way or may be
turned downwardly so as to be in front of the first pair and in combination therewith
to produce the required focal length for short distance or reading vision. The upper
edges of the rims of the first pair carry the socket part of the hinges; the second
pair being mounted on a spindle which has attached to it in a parallel line the pivots
or pins which may be roadily passed into the hinge sockets or removed therefrom as
desired. By making the second pair readily detachable and replaceable as described
facilities are afforded for changing and adapting to each other in our improved
double spectacles glasses or lenses of varying powers so as to produce the focal
lengths required.
The spindle (carrying the second pair of glasses or lenses) projects somewhat at
one side and has upon its extremity a small disc which may be taken between the
finger and thumb and rotated so as to cause the second or front pair of glasses to
be turned up or down and thus change the focal length for either long or short
distance vision without requiring the removal of the spectacles from the face of the
wearer.
In the accompanying drawings we illustrate the mode in which we prefer to carry
our said invention into effect.
Fig. 1 represents our improved combination spectacle closed up, for reading or
looking at near objects.
Fig. 2 represents the improved spectacle open, for looking at distant objects, one
pair of glasses only being used.
a is the spindle (carrying the second pair of glasses or lenses) having at one of its
extremities the small disc or button b. We prefer, to fasten the second pair of lenses
to the spindle a by means of thin metal clips and screws cc and to support the spindle
in studs or bearings d d' affixed to the rim surrounding the main lenses. The stud d'
is made with a diagonally arranged or other form of slot leading to the hole forming
the bearing so that the spindle a may be readily removed from its bearings d d².
Thus for out door use the second pair of lenses may be taken off leaving simply an

page_text: ordinary pair of spectacles suitable for long distance vision. g is a stop or collar
which is pushed against the side of the stud d so as to bring the second lenses ff into
proper focus with the inner or main lenses.
Having now particularly described and ascertained the nature of the said invention
and in what manner it is to be performed we declare that what we claim is:-
Constructing spectacles having glasses or lenses suitable for long distance vision
with an additional pair of glasses or lenses hinged or pivotted on the upper edges of
the rims of the first pair in such manner that the second pair may be turned
upwardly out of the way or removed altogether or may be turned downwardly so as
to be in front of the first pair and in combination therewith to produce a focal
length suitable for short distance vision substantially as described and shewn in the
drawings.
DAVOR BEI May of September 1.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.