A New or Improved Indicator for use in Imparting Instruction.
Year: 1893

page_text: Date of Application, 23rd Jan., 1893
Complete Specification Left, 23rd Nov., 1893-Accepted, 23rd Dec., 1893
..1
PROVISIONAL SPECIFICATION.
A New or Improved Indicator for use in Imparting Instruction.
I, LAMBERT MURRAY D'ORSEY of Ostend in the Kingdom of Belgium
Clerk in Holy Orders do hereby declare the nature of this invention to be as
follows:-
:-
The purpose of this invention is to provide instructional means for use in schools
and the like for the assistance of the teacher in indicating numbers figures or
signs to which the teacher may desire to direct the attention of the scholars or
audience.
On a suitable stand is a case having one or more faces on which cards or dials
bearing the figures numbers or signs may be removably affixed. A barrel traverses
the interior of this case and projecting in the centre or otherwise of the aforesaid
faces carries an indicating finger or fingers which by revolving the barrel may be
caused to point to any one of the figures etc. suitably arranged on the card or dial.
The barrel may be revolved by a cord and returned to its resting position by a
spring or weight, or it may be provided with a toothed pinion to be revolved by a lever
with toothed segment meshing therewith, the said lever or operating cord passing out
of the case to be actuated by the teacher. The cards being removable, any number
may be used each with a series of representations of numbers; figures, geometrical
designs, or objects according to the style of the instruction to be imparted. The
cards may be slit or the finger hinged to allow of the insertion of the cards.
Dated this 23rd day of January 1893.
R. HADDAN,
Agent for Applicant.
COMPLETE SPECIFICATION.
A New or Improved Indicator for use in Imparting Instruction.
I, LAMBERT MURRAY D'ORSEY, of Ostend, in the Kingdom of Belgium,
Clerk in Holy Orders, 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 :—
The purpose of this invention is to provide instructional means for use in schools
and the like for the assistance of the teacher in indicating numbers, figures, or
signs to which the teacher may desire to direct the attention of the scholars or
audience.
On a suitable stand is a case having one or more faces on which cards or dials
bearing the figures, numbers, or signs, may be removably affixed, preferably by
sliding in grooves. A barrel or spindle traverses the interior of this case and
projecting in the centre or otherwise of the aforesaid face or faces, carries an
indicating finger or fingers which by revolving the barrel may be caused to point
to any one of the figures etc., suitably arranged on the card or dial. The barrel
may be revolved by a cord and returned to its resting position by a spring or
weight, or it may be provided with a toothed pinion to be revolved by a lever
with toothed segment meshing therewith, the said lever or operating cord passing out
of the case to be actuated by the teacher. The cards being removable, any number
may be used each with a series of representations of numbers, figures, geometrical
designs, or objects according to the style of the instruction to be imparted. The
cards may be slit or the finger hinged to allow of the insertion of the cards.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is :-
A case containing a barrel adapted to be revolved, carrying an indicating finger
or fingers, the said case having faces adapted to receive removable dials bearing
instructional indications to any of which the finger or fingers may be caused to
point for the purpose set forth.
Dated this 23rd day of November 1893
R. HADDAN,
Of the Firm of Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, Agent for Applicant.