New or Improved Combined Table and Educational Black-board.
Year: 1894

page_text: Date of Application, 22nd Jan., 1894
Complete Specification Left, 22nd Oct., 1894-Accepted, 24th Nov., 1894
PROVISIONAL SPECIFICATION.
New or Improved Combined Table and Educational Black-board.
I, ROBERT GIBSON of 16 Queen Street, Glasgow, North Britain, Publisher do
hereby declare the nature of this invention to be as follows:-
My invention relates to an elevating folding table or educational black-board
combined; specially suited for teaching geometrical drawing and school or
lecture use.
A table top or black-board is formed of two or more folding parts hinged
together, one of said parts being combined with and hinged to a head piece having
an upright screwed or sliding rod, capable of being turned and elevated to any
desired height in or on a pedestal standard. The folding boards have metallic rods
or bars sliding in or on grooves or screw pins to adjust and hold said boards flat or
at any desired angle to each other; and have bolts on bottom or back thereof
which catch into recesses in head piece, so as to hold one or more of the boards at
right angles to pedestal for table use.
Dated this 20th day of January 1801
D. F. MASON,
Glasgow, Patent Agent.
COMPLETE SPECIFICATION.
New or Improved Combined Table and Educational Black-board.
I, ROBERT GIBSON of 16 Queen Street, Glasgow, North Britain, Publisher 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:—
My said invention relates to a new or improved elevating folding table or
educational black-board combined, specially suited for teaching geometrical drawing
and for school or lecture use.
And in order that the invention may be properly understood I have appended
the annexed drawings whereon Fig. 1 is an elevation and Fig. 2 a plan of the table
as constructed according to my invention.
The same reference letters refer to the same parts throughout the drawings.
According to my invention, the table top or black-board a is formed of two
folding parts a', a, hinged together at 6 in usual way so as to be capable of being
folded together. The one half of top a¹ is hinged at c to a head piece d on the
upright screw e fitting into the pedestal f so that it can be elevated and turned
therein as desired. The board a¹ is provided with a quadrant 9 by which it can be
held at any desired angle to the head d. The board a can also be held at any
desired angle relative to the board a¹ by the slotted rod and screw pin h; the
board a as shown at Fig. 1 being set at right angles to board a¹; but it may be set as
shown at Fig. 2 for table use. The two boards a', a, may be rigidly held together
by having a slot i along one of their sides into which is folded or laid a metal rod o
which prevents the boards from folding. The board a is provided with a latch r
which catches into a notch s in head d when used as a table.

page_text: 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 educational table or black-board consisting of two boards hinged together
and to an adjustable head piece, mounted on a pedestal, and provided with holdfast
quadrant, lever, and rod, all arranged and combined as and for the purposes set
forth and shown on drawings.
101
D. F. MASON,
Glasgow, Patent Agent.