A New or Improved Frame or Holder for School Slates and the like.
Year: 1889

page_text: Date of Application, 23rd Nov., 1889-Accepted, 28th Dec., 1889
COMPLETE SPECIFICATION.
A New or Improved Frame or Holder for School Slates and
the like.
We WILLIAM HEIGHINGTON of 387 Manning Avenue and JOHN BREARLY
HEIGHINGTON of 327 Euclid Avenue both in the City of Toronto in the County of
York in the Province of Ontario, Canada, and both Pattern Makers 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 make a durable, light cheap and noiseless frame
for school slates and the like, and it consists essentially of a frame of India rubber
or other analagous substance, moulded or otherwise formed to the proper size and
shape and having in its inner face a groove or channel for the reception of the slate
similar to that formed in the ordinary wooden frames; the beaded edge is connected
to the inner portion of the frame by a narrow neck, so that if the slate chances to
fall the beaded portion will give way or turn under and thus relieve the slate from
any possibility of breakage caused by the sudden jar from the fall.
Referring to the drawings in which like letters indicate corresponding parts
Figure 1 represents a plan view of a double slate having our improved frame
applied thereto.
Figure 2 is a cross section on the lines - showing the same folded.
Figure 3 is a cross section of a single slate showing our improved frame applied
over an ordinary frame of wood.
The frame A having a groove or channel a formed in its inner face for the recep-
tion of the slate B is composed of rubber or other analagous material moulded or
otherwise formed to the proper size and shape. It will be noticed by reference to the
drawings that the frame A consists of an outer beaded portion A¹ connected with
the inner portion A² by a narrow neck so that if the slate happens to fall to the
floor the beaded portion A¹ gives way and relieves it from any jar it might have
received.
In the case of a multiple or folding slate the frames A are connected together by
a strip or series of strips C of the same material but considerably less in thickness
which are for the purposes of a hinge and pencil holder and project from the middle
of the frame so that they can be folded either way.
Upon the outside edge of one of the frames A opposite the hinge Cand formed
of the same material as the said frame is a clasp for the purpose of forming a
fastening when the slate is folded when by passing the neck 1 of the clasp into the
narrow entrance of a dovetail d, formed in the outside edge of the other frame, it
will lock itself by drawing the larger portion of the said clasp tightly against and
pulling on the said dovetail d.
Especially in the case of single slates on the surface of the frame A are formed
loops E forming a pocket or receptacle for the pencil.
Having now particularly described and ascertained the nature of our said Inven-
tion, and in what manner the same is to be performed we declare that what we
claim is
1. A frame composed of India rubber or other analagous material having a channel
formed in its inner face to engage the edge of a slate over which said frame is drawn
so as to contract around and fit the same substantially as and for the purpose set
forth.
2. A frame for school slates and the like composed of India rubber or other
analogous material having a channel formed in its inner face to engage the edge
of a slate over which said frame is drawn so as to contract around and fit the same

page_text: and having a series of loops formed on its surface substantially as and for the purpose
set forth.
3. In a multiple school slate the frames A composed of India rubber or other
analagous material each having a groove for the reception of the edge of the slate B
and connected by a hinge of the same material and locked by means of a clasp D
substantially as and for the purpose set forth.
4. In combination with the ordinary wooden school slate frame an outer elastic
frame of India rubber or other analagous material formed with a channel in its
inner face to engage the outside edge of said wooden frame which latter is suitably
formed to fit said channel substantially as and for the purpose set forth.
Dated this 23rd day of November 1880
WHITE & WOODINGTON,
27, Southampton Buildings, London, Agents.