IMPROVEMENTS IN PHOTOGRAPHIC GRAPHIC APPARATUS
Year: 1860

page_text: 9.
ETTERS PATENT to. Joseph, Willcock, of 89, Chancery Lane, London,
Patent Agent and Civil-Engineer, for the Invention of "IMPROVEMENTS IN
PHOTOGRAPHIC
GRAPHIC APPARATUS," A communication from abroad by Pierre
M. T. O: Coen Albites, of 34, Rue Vivienne, in the City of Paris,
Photographer.
3.
PROVISIONAL SPECIFICATION left by the said Joseph Willcock at the
Office of the Commissioners of Patents, with his Petition, on the
31st July 1860.
I; JOSEPH WILLCOCK, of 89, Chancery Lane, London, Patent Agent and
Civil Engineer, do hereby declare.the nature of the said Invention for
IMPROVEMENTS IN PHOTOGRAPHIC APPARATUS," to be as follows:-
The object of this apparatus is to simplify the work of the photographic
manipulator; for which purpose the ordinary dark chamber and travelling
tent are dispensed with. The whole of the process being done in the dark
chamber of the apparatus, and as it is done mechanically, the work is per-
formed more regularly, and it is more accessible to every one. It can easily
be understood that the suppression of the dark chamber and travelling tent
will very much facilitate a rapid manipulation, and avoid a multitude of
inconveniences and embarrassments occasioned by the necessity of leaving
the apparatus to operate as heretofore.

page_text: Figs. 1, 2, and 3 represent different views of this apparatus. A is the
bath containing the sensitive liquid; B, moveable slide, serving to hold the
sensitive plate and to put the ground glass in position; C,C, two fixed frames
or grooves, fixed to the drawer of the apparatus, and serves for moving
backwards and forwards the slide which holds the prepared glass; E is the
positive bath, made of coloured glass; it is placed in the interior of the
apparatus, and receives the glass after the impression by the light, and
developes it instantaneously; F, a small cord passing over the two small
pullies J, J, to move the slide carrying the prepared glass, and to dip it
into the sensitive bath; L is the negative bath, with coloured glass, per-
mitting the photograph to be developed in the open air.
:SPECIFICATION filed in pursuance of the conditions of the Letters Patent
and of an Order of the Lord Chancellor, by the said Joseph Willcock
in the Great Seal Patent Office on the 9th February 1861..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,. JOSEPH
WILLCOCK, of 89, Chancery Lane, London, Patent Agent and Civil Engineer,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of July, in the year of our Lord
One thousand eight hundred and sixty, in the twenty-fourth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Joseph Willcock, Her special licence that I, the said Joseph.
Willcock, my executors, administrators, and assigns, or such others as I,
the said Joseph Willcok, my executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN PHOTOGRAPHIC APPARATUS," upon the condition (amongst
others) that I, the said Joseph Willcock, my executors or administrators,
by an instrument in writing under or their, or one of their hands aud
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office- within six calendar
months next and immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Joseph Willcock, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement:-
The object of this apparatus is to simplify the work of the photographic
manipulator, for which purpose the ordinary dark chamber and travelling tent
are dispensed with. The whole of the process being done in the dark chamber
of the apparatus, and as it is done mechanically, the work is performed more
regularly, and it is more accessible to every one. It can easily be understood
that the suppression of the dark chamber and travelling tent will very much
facilitate a rapid manipulation, and avoid a multitude of inconveniences and
embarrassments occasioned by the necessity of leaving the apparatus to
Fig. 1, perspective view of the apparatus.
Fig 2 represents a view of the apparatus and the position of the baths.
Fig. 3, 1, exterior box of the apparatus ; 2, door of the apparatus for
taking out the baths positive and negative; 3, the lens.
Fig. 1, A, the bath containing the sensitive liquid; B, moveable.slide,
falling in the bath A, and serving to hold the sensitive plate, and to put the
ground glass in position; C, C, two grooves, fixed to the drawer of the
apparatus, and serves for moving backwards and forwards the slide which
holds the prepared glass; D, the prepared plate or ground glass, supported by
the framework; E is the positive bath, made of colored glass; it is placed in
the interior of the apparatus,and receives the glass after the impression by the
light, and developes it instantaneously; F, a small cord, passing over two
Sinall pullies J, J, to move the slide carrying the prepared glass, and to dip
it into the sensitive bath; G, spring, fixed in the interior of the apparatus ;
H, silver hook, to hold the ground glass or prepared plate; I, screw for fixing
the drawer of the apparatus after being put in position; J, J, two small
pullies, upon which runs the cord that serves to move up and down the
prepared glass in the sensitive bath; K, framework in india-rubber or gutta
percha, serving to prevent the light from penetrating into the apparatus, and
to detach the silver hook that holds the ground glass, and slide it into the
bath; L, the negative and positive bath, with or without colored glass,
permitting the photograph to be developed in the open light. This bath
replaces the dark chamber and travelling tent, and permits you to judge the

page_text: progress of the developement of the image; M, drawer of the apparatus.
When required, a hole may be made in top partition of the dark chamber of
the apparatus, and in the objective or in the last only because a ray of light
penetrating by this hole upon a mirror that should be placed in the objective,
and which reflects this ray upon the ground glass without destroying the ray
upon the first glass upon which is the image, thus rendering the production
more instantaneous.
In witness whereof, I, the said Joseph Willcock, have hereunto set my
hand and seal, this Ninth day of February, in the year of our
Lord One thousand eight hundred and sixty-one.
(L.S.) JOSEPH WILLCOCK.