Improvements in Attachments for use with Drawing Boards, Notice Boards, Writing Desks, and the like.
Year: 1897

page_text: Date of Application, 17th Feb.,
1897
Complete Specification Left, 17th Nov., 1897-Accepted, 15th Jan., 1898
PROVISIONAL SPECIFICATION.
Improvements in Attachments for use with Drawing Boards,
Notice Boards, Writing Desks, and the like.
I, ROBERT JOHN SIMPSON, of Triangle Chambers, Martineau Street, Birmingham,
Designer, do hereby declare the nature of this invention to be as follows:-
This invention has for its object a convenient method of attaching paper or
canvas to drawing boards or attaching notices and the like to boards or news
papers to their stands.
It consists in letting into the face of the board on two opposite sides or at top
and bottom near to the edge strips of metal partly covering grooves or sinkings in
the face of the board. Metal strips tempered and curved so as to form springs
of a more or less bow shape are laid across the board over the paper placed thereon,
with the centre portion of the curved spring strips placed on the centre of the
board, the ends of the spring strips are then brought down & sprung under the
side strips. In this manner the paper will be firmly held down.
Instead of the side strips being of metal; hard wood, vulcanite or other suitable
substance may be let into the board, forming undercut grooves or the undercut or
partly covered grooves may be formed in the face of the board itself.
Or the side strips and grooves may be dispensed with and the spring strips made
to clip over the edges of the board or table in which case the edges thereof may,
if desired be covered with metal or other hard substance.
The spring strips when in place may be used as a straight edge against which
to use the set squares in drawing and they may be also marked with scales as also
may be the side strips.
The spring strips may be covered with india rubber or other material when
desired.
One end of each spring strip may be fixed down, hinged, or otherwise attached,
either free or not to slide up and down.
In some instances it will be found convenient to fit these attachments direct to
desks or tables and in such situations they may be used for holding down pads of
blotting paper.
.ת
1E1 1
TA
HENRY F. TALBOT,
7 Cherry Street, Birmingham, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Attachments for use with Drawing Boards,
Notice Boards, Writing Desks, and the like.
I, ROBERT JOIN SIMPSON, of Triangle Chambers, Martineau Street, Birmingham,
Designer, 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:-
Reference being had to the accompanying sheet of domince

page_text: This invention has for its object a convenient method of attaching paper or
canvas to drawing boards and attaching notices and the like to boards, or news-
papers to their stands.
It consists in the use of strips of metal tempered and curved so as to form
springs, of a more or less bow shape laid across the board over the paper or canvas
placed thereon.
I will now proceed to describe various methods of carrying out this my invention
referring to the accompanying sheet of drawings to assist therein.
Fig. 1 illustrates in plan and Fig. 2 in section one arrangement in which I let
into the face of the board on two opposite sides or at top and bottom near the edges
of the board strips of metal (a) partially covering grooves or sinkings (b). in the
face of the board I take a strip of metal (c) curved as shewn in
dotted lines at (c) and laying the centre of this curved spring strip
upon the centre of the board over the paper or canvas I bring one end
of the strip (c) down to spring under the one fixed strip (a) and turn the other
end of the spring strip (c) over to spring under the opposite fixed strip (a). In
this manner the paper will be firmly held down on the board.
Instead of the side strips being of metal, hard wood, vulcanite, or other suitable
substance may be let into the board, forming undercut grooves, or the undercut or
partly covered grooves may be formed in the face of the board itself.
Figs. 3 and 4 illustrate in plan and section another arrangement in which I
dispense with the side strips (a) and grooves (b) and make the spring strip (c) clip
over the edges of the board or table as shewn in Figs. 3 and 4, in which case the
edges of the board or table may if desired be covered with metal or other hard sub-
stance. A groove (d) may be formed on the one or both edges of the board into
which to spring the end or ends of the spring strips (c) and to further prevent the
spring strip from becoming displaced a wedge (e) Fig. 4 may be used or a pin (e¹)
may be passed through a hole in the end of the strip (c) into the groove (¹) as
shewn at Fig. 5.
The spring strips when in place may be used as staight edges against which
to use the set squares in drawing, as illustrated at (f), Fig. 1, and they may also
be marked with scales as at (9), and the fixed strips (a) may also be marked with
scales. The spring strips may be covered with india rubber or other material when
desired.
One end of each strip may be fixed down or otherwise attached, either freely or
not as for instance at Fig. 6 where a groove (h) is cut in the face of the board to
receive the curled end (i) of the spring strip (c) or a wire may pass from side to
side of the board in the groove (h) upon which to hang the curled end (2) of the
strip (c). The arrangement of spring strips attached at one end will be suitable
for holding newspapers upon their stands and for such like purposes.
In some instances it will be found convenient to fit these attachments to desks
or tables for holding down pads of blotting paper and the like.
I do not confine myself to the precise methods described of attaching the spring
strips to the boards more to the precise modes illustrated of causing the ends of
the strips to grip the edges of the boards.
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:
Holding down upon drawing boards, tables, desks, and the like paper, canvas,
and the like by means of strips of metal substantially as described.
Dad thin 16th day of Novembar 100%
HENRY F. TALBOT,
7 Cherry Street, Birmingham, Agent for the Applicant.