Year: 1899

page_text: Date of Application, 11th Nov., 1899
Complete Specification Left, 24th July, 1900-Accepted, 20th Oct., 1900
I, ELI NASH MOYER, of No. 120, Victoria Street, in the City of Toronto, in
the County of York and Province of Ontario, Dominion of Canada, School Fur-
nisher, do hereby declare the nature of this invention to be us follows:-
My invention has for its object to provide an instrument by the use of which
chronological charts can be produced, depicting the history of a country, or
biography of an individual.
My object also being to produce an instrument of such great simplicity and
completeness that charts as above mentioned can be depicted by any student or
teacher whether endowed with the talents for, or knowledge of drawing, or not.
The invention may be said briefly to consist of an arm with a pivot point
at one end to be pivotally connected to a black-board or the like, over which
black-board it can be swung, the arm having a series of differing time scales
marked on separate interchangeable pieces of cardboard carried by the said
arm; while a marker is carried by a block slidable along the arm.
The arm is preferably of wood, and has a metallic plate secured to one end
thereof and provided with a perforation through which it pivotally connected
by a thumb screw to the frame of a black-board, slate or the like.
The sliding block is made of india rubber, and has a transverse dove-tailed
recess in its underside to receive the arm, the dovetail form enabling it to grip
the side edges of the beam; the block being of sufficient length to allow of its
carrying a piece of chalk, in a perforation extending in a diagonal line from
the top side thereof to a point outside of the beam, but in close proximity
thereto.
The outer face of the arm is recessed and a series of interchangeable strips of
cardboard each having a different time scale printed thereon are set in said
recess. These time scale strips are retained in the recess by a series of counter-
sunk cross bars and an end bar and the arm is pivotally connected through its
end plate to the frame of the black-board by means of a plate held rigidly by
the before mentioned thumb screw.
In using my improved instrument, I find the best results are attained by
constituting each off-set divisional part of the scales, a century when the history
of a country is to be depicted; or, say, a decade when a biography is to be
depicted and for this reason the interchangeable time-scales have been made to
each comprise a different series of divisions and sub-divisions.
Batalh 11th lov at Nov 1900
WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C,
Agent for the Applicant.

page_text: Improvements in Chart Drawing Instruments.
I, ELI NASH MOYER, of 120, Victoria Street, in the City of Toronto, in
the County of York and Province of Ontario, Dominion of Canada, School Fur-
nisher, 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 invention has for its object to provide an instrument by the use of which
the history of a country, a biography of an individual, institution, or other sub-
ject, can be depicted.
My object also being to produce an instrument of such great simplicity and
completeness that any object to be studied can be depicted by a teacher to a
class whether the teacher is endowed with the talents for, or knowledge of
drawing, or not.
The invention may be said briefly to consist of an arm adapted to be pivotally
connected at one end to a base preferably a black-board or slate over which it
can be swung, the arm having a series of scales marked on separate pieces of
cardboard carried in a recess in said arm; while a marker is carried by a
block slidable along the arm.
For full comprehension, however of my invention, reference must be had to
the accompanying drawings forming a part of this specification in which like
symbols indicate the same parts and wherein,
Fig. 1 is a plan view of my improved drawing instrument constructed to be
used in conjunction with a black-board;
Fig. 2 is a perspective view of one of the separate pieces with a time scale
marked thereon;
Fig. 3 is a side elevation of my improved instrument constructed as shown in
Fig. 1, and
Fig. 4 is a transverse sectional view of the arm taken on line r,, Fig. 1.
bis the arm which is preferably of wood, and has a metallic plate, c, secured
to one end thereof and provided with a perforation, e, through which it is
pivotally connected by a rivet to a second metallic plate 7 which, in turn, is
rigidly connected by a thumb screw 5, to the frame 4 of a black-board or slate, 3.
The outer face of the arm is recessed and a series of interchangeable strips, 6,
of cardboard each having a different time scale printed thereon are carried in said
recess. These time scale strips, 6, are retained in the recess against accidental
outward displacement by a series of countersunk cross bars 8 and against longi-
tudinal displacement by a stop preferably in the form of an end bar 9, while the
sides of the recess constitute stops to prevent the lateral displacement of the
strips 6; and a flexible strip 10 (preferably a piece of tape) is connected at one
end, as at 12, to the bottom of the recess near one side edge thereof and extended
beneath the scale strip and opposite side edge of the arm. By drawing on this
tape the strips will be lifted and bent
allow of their being taken hold of sufficiently above the face of the arm to
removed.
The sliding block, m, is made of india rubber, and has a transverse dove-
tailed recess in its underside to receive the arm, the dove-tail form enabling
it to grip the side edges of the arm; the block being of sufficient length to
allow of its carrying a piece of chalk, O, or a pencil, in a perforation P extend-
ing in a diagonal line from the top side thereof to a point outside of the beam
but in close proximity thereto.
In using my improved instrument, to chronologically depict the history of

page_text: a country, biography of an individual, institution or other subject, I find the
best results are attained by constituting each off-set divisional part of the
scales, a century when the history of a country is to be depicted and a scale such
as shown in Fig. 2 is used; or, suy, a decade when a biography is to be depicted
and a scale such as shown in Fig. 1 is used. To exemplify the use of my inven
tion in instructing a student in history, I will describe the method of setting
forth a portion of the history of Canada in outline. The arm with the inter-
changeable scales is first pivotally connected to the black-board by screwing
the thumb-screw 5 through the plate 7 into the frame 4 (see Figs. 1 and 3).
Let the area to be studied extend from the beginning of the fifteenth century
to the present day, and, the teacher, therefore will select the scale strip, 6,
bearing the scale as shown in Fig. 2 divided and sub-divided and with its
divisions and sub-divisions permanently numbered to represent the era to be
studied, and place it on top of the others in the recess in the arm;
As the portious of this time scale from the inner end or beginning of each
to the first off-set, is sub-divided into one hundred parts, it will serve well to
represent a century, and as the portions between the off-sets are correspondingly
sub-divided, each off-set can represent the completion of a century.
To depict the event of Jacques Cartier's voyages of discovery which took place
in the years 1534 and 1535, the teacher will swing the arm, b, over towards one
side of the black board, move the blocks, m. along the scale until the pencil is
upon the 34th line from 1500 on the scale strip Fig. 2 which will then be
carried in the arm as before mentioned. He then swings the arm and draws an
are, upon which he writes 1534-5 Voyages of Jacques Cartier.”
41
"
To depict the historical fact that from 1534 until the commencement of the
French Colonial war in 1754, the French sphere extended over only a portion
of the territory that now constitutes the Dominion of Canada and that the
remaining portions were either governed by the British or unexplored. And at
the same time to depict the extent of these different portions of territory, the
teacher divides by radial lines the area of the black board into portions corre-
sponding proportionately to that administered by the two powers, and unex-
plored, and the various epochs of historical importance are marked off by ares.
such for instance, as Kirk held possession of colonies for England from 1629
to 1632." This affected only the areas, representing what is at the present day
the provinces of Ontario, Quebec, New Brunswick, Nova Scotia, and Prince
Edward Island, consequently the teacher will extend the ares across these por-
tions only. To indicate the British North America Act of 1867," which con-
federated all the provinces except Prince Edward Island, an are is drawn com-
pletely across the chart excepting the portion indicating Prince Edward Island,
and an arc is drawn across the portion of the chart representing Prince Edward
Island to indicate the epoch 1873 at which the Island Province joined the
Dominion.
"
Ares are then drawn to indicate the dates of the wars that affect in any way
the history of Canada, an are being drawn to represent the beginning and the end
respectively of each war and extending over the portion of the chart represent-
ing the territory affected.
Of course as the arcs are drawn the teacher will note thereon, or in the space
between them, the event or era indicated.
It is obvious that in this way a teacher can easily depict, and, in depicting,
impart to a student or class the knowledge of the history of any period, or era.
It is also obvious that if the biography of an individual including a sketch of
the parents, were to be depicted, a scale strip such as illustrated in the time ruler
in Fig. 2 would be used.
Although I have illustrated my invention as applied to the study of the
history of a country it is evident that the life of an individual can be set forth as
clearly and with equal ease.
The block, m, being made of india rubber, while affording an exceedingly

page_text: simple and effective means for adjustably connecting the marker to the beam
serves also as an eraser.
I have discovered that the best results are attained if the instrument herein
described is used by the teacher in conjunction with the instrument illustrated
in my application (filed 11 April 1899 under No. 7658), and the Goodwin chart
(set forth and claimed in an Application filed Nov. 6 1899 under No. 22189) the
latter instrument and chart being used by the student.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is-
. 1. ln combination with an arm for drawing instruments of the type described,
a number of detachable strips carried by said arm and extending longitudinally
tuercof, each strip having a different scale marked thereon, and rigid stops upon
the arm and extending across the ends and side edges of said strips for retaining
said strips against longitudinal and lateral displacement upon said arm.
2. An arm for the purpose set forth, having a longitudinal recess in the ex-
posed face thereof and a series of strips bearing time scales, carried in suid
recess, said strips being interchangeable with one another, and rigid stops upon
the arm and extending across the end edges of said strips for retaining said
strips against longitudinal displacement.
3. In combination with a black-board, a drawing instrument of the class
described, comprising an arm; a number of detachable strips carried by said
arm and extending longitudinally thereof, each strip having a different scale
marked thereon, rigid stops upon said arm and extending across the end and
side edges of said strips for retaining said strips against longitudinal and lateral
displacement; a marker carried by said arm and adjustable longitudinally thereof
and means for pivotally connecting said arm at one end to said black-board,
substantially as described and for the purpose set forth.
4. In combination with a base, of an arm having a pivot point at one end in
line with one side edge thereof, a series of strips carried by the exposed face of
said arm, said strips being interchangeable with one another; each strip bearing
a scale consisting of a series of equal divisions radiating from said pivot point
and extending one beyond the other and off-set from one another, and a series of
equal divisions concentric of said pivot point and sub-dividing said radial
divisions, the divisions and sub-divisions of the scale upon each strip differing
from the divisions and subdivisions of the scales upon the other strips; a marker
carried by said arm and movable longitudinally thereof; and means for pivotally
connecting said arm, at said pivot point, to said base, substantially as described
and for the purpose set forth.
5. In combination with a black board 3 having a frame 4, of an arm having
a longitudinal recess in the exposed face thereof and a series of strips, b, bearing
time scales, carried in said recess, said strips being interchangeable with one
another, a hinge plate 7 pivotally connected to one end of said aru, a thumb
screw 5, for connecting said hinge plate to the frame and a slidable block m
having a notch and a diagonal hole, p, for a chalk marker O, substantially as
described and for the purpose set forth.
Dated this 24th day of lul 1000
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.