Improvements in Spectacles.
Year: 1889

page_text: Date of Application, 29th Jan,, 1889
Complete Specification Left, 2nd Oct., 1889-Accepted, 2nd Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Spectacles.
I, LAZARUS THRELFALL BAINES of The Hall, Bawtry, in the County of York,
Barrister-at-Law, do hereby declare the nature of this invention to be as follows:-
The invention has for its object improvements in spectacles, and relates to means
whereby they may be readily adapted to the requirements of the wearer, when they
are to be used either for reading and close observation, or for viewing distant
objects. For this purpose I employ a frame of any ordinary construction, and I fit
the same with glasses to suit a given sight. To the upper part of the frame of each
eye piece I hinge another eye piece frame, and I apply thereto a suitable spring and
catch, so that when required they can be fastened the one over the other and used
for a given sight, and when required for a different sight, by releasing the catches,
the springs will act to raise the outer glasses and allow the wearer to use only the one
pair of glasses.
The catch I prefer to employ is that commonly used with purses, namely two studs
which slightly overlap each other, and the spring used may be combined with the
binge in any ordinary manner, or it may consist of a curved wire fixed at one end
to one side of the main frame and passing at its other end through a loop or eye fixed
at the upper part of the secondary or supplemental eye piece frame.
Dated this 29th day of January 1889.
LAZARUS THRELFALL BAINES.
By Harris & Mills,
23, Southampton Buildings, Agents.
COMPLETE SPECIFICATION.
Improvements in Spectacles.
I LAZARUS THRELFALL BAINES of The Hall, Bawtry, in the County of York,
Barrister-at-law, 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 :-
The invention has for its object improvements in spectacles and relates to means
whereby they may be readily adapted to the requirements of the wearer when they
are to be used either for reading and close observation or for viewing distant
objects.
For this purpose I employ a frame of any ordinary construction and I fit the same
with glasses to suit a given sight. To the upper part of the frame of each eye piece
I hinge another eye piece frame and I apply thereto a suitable spring and catch so
that when required they can be fastened the one over the other and used for a given
sight and when required for a different sight by releasing the catches the springs
will act to raise the outer glasses and allow the wearer to use only the one pair of
glasses. One form of catch I may employ is that commonly used with purses namely
two studs which slightly overlap each other and the spring used may he combined
with the hinge in any ordinary manner or it may consist of a curved wire fixed at
one end to one side of the main frame and passing at its other end through a loop
or eye fixed at the upper part of the secondary or supplemental eye piece frame.
And in order that my invention may be more clearly understood and readily carried
into effect I will proceed aided by the accompanying drawings more fully to describe
the same.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1. is a front view of a pair of spectacles constructed according to my
invention.
Figures 2. and 3. are plan views of the same showing the moveable glasses in two
different positions and Figure 4. is a side or edge view of Figure 3.
Figures 5. 6. 7. and 8. are similar views of a pair of spectacles_showing a slight
modification and Figure 9. is an enlarged view of parts thereof. In all the figures
like parts are indicated by similar letters of reference. I will first describe the
spectacles represented at Figures 1. to 4.
The frame consisting of bridge a eyes or bows band sides or temples e may be of
any ordinary construction and I fit the same with glasses d to suit any desired sight.
To the upper part of eye or bow 61 connect by hinges e other eyes or bows b¹ which
are fitted with glasses d' which in combination with the glasses d can be used for
another sight; on the eyes or bows I fix spring arms or fingers the free ends
of which are passed through loops g fixed to the eyes or bows b. A stud / is fixed
to each eye or bow b and a stud to each eye or bow ¹; these studs h. h¹ slightly
overlap each other and form a catch by which the two bows or eyes can when
required be held together and which can be readily liberated at which time the
spring arms or fingers will act to throw up the eyes or bows b¹ and thereby enable
the eyes or bows 6 to be alone in use.
The modification represented at Figures 5 to 9 is similarly constructed to that
above described except that hinges springs and catches of different forms are
employed; in this latter case the arms of the binges are more widely separated from
each other and a coiled spring i is place around the hinge pin, one end of which
spring is connected to the eye or bow and the other to the eye or bow 6 a catch h*
is fixed to each eye or bow 6' which can grip the lower edge of the eye or bow band
so be made to hold the two eyes or bows b. b¹ together when required.
A stop 2 is fixed to each bow to limit the extent to which the eyes or bows b¹
will rise when liberated from the eyes or bows b and a stud 63 is fixed to each eye or
bow b¹ to facilitate the liberation thereof from the eyes or bows b.
I would here remark that I do not confine myself to the precise constructions of
hinges, springs, and catches herein shown and described as such may be varied without
departing from the peculiar character 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
The construction of spectacles with a second pair of eyes or bows and glasses
hinged to the eyes or bows forming part of the frame and provided with suitable
springs and catches substantially as herein shown and described and for the purpose
stated.
T
31
1 1
1000
LAZARUS THRELFALL BAINES.
By Harris & Mills,
23, Southampton Buildings, Agents.