Year: 1891

page_text: Date of Application, 27th Apr., 1891-Accepted, 30th May, 1891
A communication from WILLIAM JOSEPH STILL, Repairer of Type-writers, and
SAMUEL JOHN MOORE, Manufacturer, both of 28, Front Street West, in the
City of Toronto, in the County of York, in the Province of Ontario,
Canada.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., 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 object of the invention is to design a simple copy-holder in which the leaves
of the copy are held in position in such a way that they may be easily and quickly
turned over, an adjustable marker being arranged in connection with the holder to
indicate the lines to be copied, and it consists in the peculiar construction, arrange-
ment and combination of parts hereinafter more particularly described.
Fig. 1 is a perspective front view of the improved copy-holder.
Fig. 2 is a perspective rear view of same.
Fig. 3 is a detail showing a portion of the metal clamp.
Fig. 4 is a sectional detail of the centre hinge and spring of the clamp.
Fig. 5 is a sectional detail of one of the end hinges.
Fig. 6 is a detail of the marker.
In the drawings A represents a stand which may be made as shown or any other
suitable design.
B is a spindle screwed into the stand A.
C is a plate to which the desk D is fixed.
E is a wing fixed to and extending from the plate C. This wing is pivotted at a
to the end of the spindle B and passes through a slot made in the end of the said
spindle as shown in Figure 2.
F is a set screw screwed into the spindle B and designed to clamp and hold the
wing E in order that the desk D may be held at any angle desired the height of
the desk being regulated by turning the screwed spindle B.
G is a clamp held to the desk D by the posts H. A rubber tube I is placed
on the outer post H between the clamp G and the face of the desk D and a similar
rubber tube J is placed between the head of each post H and the outer face of the
clamp G. The holes in the clamp G through which the posts H pass are made
sufficiently large to permit of a rocking movement of the said clanip, the tubes I
being shaped so as to hold the edge of the clamp G against the face of the desk D.
To still further increase this desired spring action a spiral spring K is placed below
the centre of the clamp G.
Lis a light frame hinged to the clamp G and provided with springs M designed
to hold the frame I. against the face of the desk D.
In order to use this copy-holder the clamp G is pressed upon so as to rock it on
its pivot and raise its edge sufficiently far from the desk D to allow the book or
leaves to be placed under the said clamp. When the clamp is released the springs
which actuate it cause it to press upon and hold the book or leaves in position. As
the frame L is independently pivotted upon the clamp G it will be held against the
leaves no matter how thick or thin the book may be which is placed below the said
clamp. It will be observed that the upper end of the frame L is set so that it will
be in contact with the surface of the desk or leaves when the gripping edge of the
clamp is resting thereon.
While the frame L has sufficient independent action to allow it to perform its

page_text: work it will be raised with the clamp when the book or leaves are to be placed
under the said clamp so that there is no necessity at all to handle the frame L.
In other copy-holders with which my correspondents are familiar it is customary
to use a bar or rod for the purpose of indicating the lines being copied. In all such
devices that they have seen the bar or rod is held by friction to the frame and is
moved up and down without altering the tension of the friction. Consequently it is
necessary that the tension of the pressure should be very light in order that the bar
may be easily moved and in practice it is found that the vibration of the table
caused by the action of the type-blocks shakes the rod or marker out of place.
In this device two jaws O designed to hook over the frame L as indicated, are
fixed to the bar N. The plate P on which the jaws O are formed extends beyond
the frame L and the end of the bar N also extends beyond the frame L. This
bar N is set and tempered so that it may be easily sprung toward the plate P in
order that the jaws O may hook over the frame L leaving the said frame between
the bar N and the jaws the spring in the bar N being such as to firmly grip the
frame L between the bar N and the jaws O. The tension of this spring is made
sufficiently strong to securely hold the bar or marker N in any position it
set and it can only be moved by pressing the spring away from the frame which
may readily be done by grasping between the finger and thumb the plate P and
the bar N.
may
be
Having now particularly described and ascertained the nature of the said inven-
tion, as communicated to me by my foreign correspondents, and in what manner
the same is to be performed, I declare that what I claim is :-
1. A desk having pivotted thereon a clamp actuated by a spring in combination
with a frame independently pivotted on the said clamp and set so that a portion of it
will be in contact with the surface of the desk when the gripping edge of the clamp
is resting thereon and the frame and clamp adapted to move together substantially
as and for the purpose specified.
2. A desk having pivotted thereon a clamp actuated by a spring in combination
with a frame independently pivotted on the said clamp and provided with a spring
by which it is held in contact with the surface of the desk when the gripping edge
of the clamp is resting thereon and the frame and clamp adapted to move together
substantially as and for the purpose specified.
3. A desk having pivotted thereon a clamp actuated by a spring in combination
with a frame pivotted on the said clamp and a spring arranged to act on the said
pivotted frame which is set so that its sides are held clear of the desk by its upper
end substantially as and for the purpose specified.
4. A bar or marker N provided with a plate P having jaws O formed on it to
hook upon the frame L in combination with a spring designed to hold the frame L
between it and the jaws O in such a manner that the marker cannot practically
be moved without compressing the spring substantially as and for the purpose
specified.
Dated this 27th day of Anxil 1801
W. P. THOMPSON & BOULT,
Agents for the Applicant.