Improved Camera-Lucida Apparatus.
Year: 1897

page_text: Improved Camera-Lucida Apparatus.
ERNEST GILES, No. 5 California Gardens, Barnsley, Yorkshire, Watchmaker, do
hereby declare the nature of this invention to be as follows:-
A box made to any shape and any size of wood or other material. A hole is made
in the said box with a lens fitted in the exact focus required, the lens being held in by
a metal plate with a hole cut in. Inside of the box is a mirror placed at forty five
degrees. Above the mirror is horizontally fitted a piece of ground glass or transfer
paper. A hole is also made at the top of the box. A person holding this box, the
lens being in the front, all objects animated or stationary, scenery &c. are conveyed
by the lens on to the mirror and reflected to the ground glass and can be seen through
the top hole of the box.
ERNEST GILES, No. 5 California Gardens, Barnsley, Yorkshire, Watchmaker, 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:-
A box or case made to any shape or size for the pocket and upwards of wood or
any other material.
Fig. 1 represents the box or case A with one side taken out to show the interior.
A hole B is made of the size required in the said box A, the said hole B being
chamfered outside all round. A lens C of the exact focus required, a little larger in
diameter than the said hole B is laid into the chamfered part of the hole B. The
lens C is held into its place by means of a metal plate D having a hole cut into its
centre a little smaller than the said lens C. The said metal plate D is secured to the
box A by means of 4 screws, nails or pins, a, a¹, a², a³. The said plate D is made
square, round or any other shape. The sides of the box A, Fig. 2, have two
grooves, b, d, made into them in the inside; the groove b, being horizontal, the
groove d, is made underneath the groove b at an angle of forty five degrees.
Inside of the box A is placed into the grooves d, a mirror E the size required, it
being at an angle of forty five degrees from the front of the said lens C.
Into the grooves b, is fitted a piece of ground glass F or transfer paper.
A hole G is made at the top of the said box A near the back.
Instead of the said lens being held in by a metal plate D, it is fitted into a
tube H, Fig. 3, and held in the end of the said tube H by means of a lid,
with
most of the front cut out to admit light. The said tube being held into the hole B,
Fig. 1, of the box A by friction to focus by drawing in or out.

page_text: Instead of securing the metal plate D by screws, nails or pins to the box A, it is
made of thin metal with two projections, K, K', as in Fig. 4, one on each side. Two
notches or grooves are made through, the box A, at the sides of the hole B, the two
projections K, K', are bent and put through the two grooves at the sides of the
hole B and bent again in the inside of the box A by which means it is held secure.
If this box or case A is held by a person, the lens C being in the front, all objects,
animated or stationary within the focus of the lens C, are conveyed by the said lens C
on to the mirror E. The said mirror E being at forty five degrees angle from the lens C
reflects the objects upward on to the ground glass F or transfer paper which retains
the scene that is reflected from the mirror E.
The hole G being above the ground glass F, the person can see the exact
reproduction of nature as a picture in its true colour and character on a miniature
scale.
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:
An improved apparatus which shows in the light, any objects that appear in the
front of it