Improvements in or connected with the Production of Photographic Negatives.
Year: 1890

page_text: Date of Application, 24th Dec., 1890
Complete Specification Left, 18th Sept., 1891-Accepted, 24'h Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Production of Photographic
Negatives.
I, GEORGE FREDERICK REDFERN, of the firm of G. F. Redfern & Co., the
General Patent Office, No. 4, South Street, Finsbury, in the County of Middlesex,
Patent Agents, do hereby declare the nature of this invention (a communication
from abroad by J. M. Jordan of Philadelphia, in the United States of America) to
be as follows:-
The object of this invention is to effect the permanent marking of names, titles
or other matter upon photographic negatives in a more acceptable manner than
usual.
The ordinary plan of marking titles upon photographic negatives is to print
the title upon a strip of gelatine or other transparent film and then to secure this
strip upon the face of the negative, a plan which is objectionable because of its
inconvenience and expense and because of the liability of the strip to become
detached and lost.
In carrying out this invention; therefore, I print the title directly upon the face
or film side of the negative, the title, of course, appearing in reverse in order that it
will read properly upon the print:
For the purpose of printing the title I preferably use rubber type on account of
the unyielding character of the surface upon which the impression is made, but
these type are formed and set up in a manner the reverse of that adopted in ordinary
printing, that is to say, each type has its letter or character facing to the right,
instead of to the left as in ordinary type, and the type are set up successively from
right to left, instead of from left to right as usual, so that a reverse impression upon
the negative will be produced.
Any desired matter other than the title may be imprinted upon the negative in
the same way.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or connected with the Production of Photographic
Negatives.
I, GEORGE FREDERICK REDFERN, of the firm of G. F. Redfern & Co., the
General Patent Office, No. 4, South Street, Finsbury, in the County of Middlesex,
Patent Agents, do hereby declare the nature of this invention (a communication
from abroad-by J.-M. Jordan of Philadelphia, in the United States of America)
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 the production of photographic negatives and has for
object to effect the permanent marking of names, titles, or other matter upon photo-
graphic negatives in a more acceptable manner than usual.
In the accompanying drawing,
Figure 1 is a view of a photographic negative plate with a title imprinted thereon
in accordance with this invention, and
Figure 2 is a view of the type set up for printing such title.
The ordinary plan of marking titles upon photographic negatives is to print the
[ Price Bd1
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page_text: title upon a strip of gelatine or other transparent film, and then to secure this strip
upon the face of the negative, a plan which is objectionable because of its incon-
venience and expense and because of the liability of the strip to become detached
and lost.
In carrying out my invention, therefore, I print the title directly upon the face
or film side of the negative, the title, of course, appearing in reverse, in order that
it will read properly upon the print.
For the purpose of printing the title I preferably use rubber type on account of
the unyielding character of the surface upon which the impression is made. but
these type are formed and set up in a manner the reverse of that adopted in ordinary
printing, that is to say, each type has its letter or character facing to the right,
instead of to the left, as in ordinary type, and the type are set up facing to the
right, as shewn in Figure 2 of the accompanying drawing, instead of to the left, as
usual, so that a reverse impression upon the negative will be produced, as shewn in
Figure 1.
Any desired matter other than the title may be imprinted upon the negative in
the same way.
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 :-
1. The mode herein described of marking titles or other matter upon photographic
negatives, the said mode consisting in preparing elastic type with letters or
characters facing to the right, setting up these type so as to read from right to left,
and then printing the title directly upon the face or film side of the negative from
the type thus prepared and set up, whereby the title in the negative will be reversed,
substantially as hereinbefore described.
2. A photographic negative having a title, in reverse, printed directly upon the
film side of the negative, substantially as hereinbefore described.
Dated the 18th day of September 1891.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.