Improvements in or connected with the Prevention of Fraudulent Alterations on Cheques or the like.
Year: 1899

page_text: Date of Application, 20th Feb., 1899
Complete Specification Left, 20th Nov., 1899-Accepted, 10th Feb., 1900
Improvements in or connected with the Prevention of Fraudulent
Alterations on Cheques or the like.
I, JOHN GEORGE PARVIN, of 24, Portland Place North, Clapham Road, in the
County of London, do hereby declare the nature of this invention to be as
follows:-
This invention for improvements in or connected with the prevention of
fraudulent alterations on cheques or the like consists in crimping or stamping a
series of serrations over the figures or other marks whose alteration it is intended
to render impossible without detection.
In carrying out this invention any ordinary small hand or other press is used
and the block and its counterpart are crimped or formed with small serrations,
the depths of the serrations being diminished near the edges so as to prevent the
paper being torn when being stamped. A cheque is stamped over the figures
and a cancelled cheque may be stamped over the mark denoting that the cheque
is cancelled.
The serrations can be made to any suitable design so as to denote devices or
words, or devices or words marked across serrations.
Dated this 20th day of February 1899.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
Improvements in or connected with the Prevention of Fraudulent
Alterations on Cheques or the like.
I, JOHN GEORGE PARVIN, of 24, Portland Place North, Clapham Road, in the
County of London, Mercantile Clerk, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:―
This invention for improvements in or connected with the prevention of
fraudulent alterations on cheques or the like consists in crimping or stamping a
series of serrations over the figures or other marks whose alteration it is intended
to render impossible without detection.
In carrying out this invention any ordinary small hand or other press is used
and the block and its counterpart are crimped or formed with small serrations,
the depths of the serrations being diminished near the edges so as to prevent the
paper being torn when being stamped. A cheque is stamped over the figures

page_text: and a cancelled cheque may be stamped over the mark denoting that the cheque
is cancelled.
The serrations can be made to any suitable design so as to denote devices or
words, or devices or words marked across serrations.
In the accompanying sheet of illustrative drawings:-Figs. 1 and 2 are
elevations at right angles to one another of a device for marking cheques and
the like to prevent fraudulent alterations, constructed according to this invention.
The block a of the hand press b is crimped or formed with small serrations c.
The depth of each, serration diminishes towards the edges and the depths of
the serration's diminish towards the ends so as to prevent the paper being torn
when being stamped.
The counterpart d of the block is crimped or serrated corresponding to the
block a.
".
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
Preventing fraudulent alterations on cheques or the like by crimping or
stamping a series of serrations over the figures or letters whose alteration it is
intended to render impossible without detection.
Dated this 20th day of November 1899. .
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.