Improvements in Fastenings for the Corners of Writing Slates, Picture Frames, and the like.
Year: 1891

page_text: Date of Application, 2nd Mar., 1891
Complete Specification Left, 23rd Nov., 1891-Accepted, 24th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in Fastenings for the Corners of Writing Slates,
Picture Frames, and the like.
I, HUGH ELLIS of The Menai Writing Slate Works, Menai Bridge in the
County of Anglesey, Writing Slate Manufacturer do hereby declare the nature of
this invention to be as follows:-
According to my invention I join or secure the corners of writing slate frames
and other frames by means of a wire staple in such manner that one end of the
staple is secured in one part of the frame while the other end is fixed in the other
part of the said frame. The staples may project right through the frame and be
clenched or filed flat on the other side or not as desired. The staples may also be
applied on both sides of the frame is preferred.
Another mode of application consists in using two staples only, one at each end
of the frame so that the upper portion of the staple lies on the top of the short end
of the frame and serves to hold the two longer sides together while rigidly holding
the said shorter part of the frame between the longer sides. The frame may also
be provided with grooves so as to allow the staples to be flush with the surface of
the wood or other material of which the frame is made. The wire forming the
staples may be of any suitable material and section and if made of iron I prefer to
use it galvanized or covered with some suitable coating to prevent rust. The
fastenings herein described may be used with any kinds of corner joints whether
united, fixed by means of a nail driven into the edge of the frame or otherwise, and
under some circumstances I may dispense with all other modes of fastening except
the staples.
1041
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Fastenings for the Corners of Writing Slates,
Picture Frames, and the like.
I, HUGH ELLIS of The Menai Writing Slate Works Menai Bridge in the
County of Anglesey Writing Slate Manufacturer 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:—
According to my invention I join or secure the corners of the frames of writing
slates or pictures or other frames or similar articles by means of a wire staple in
such manner that one end of the staple is secured in one part of the frame while
the other end is fixed in another part of the frame.
In the accompanying drawings showing a few examples of my invention all like
or similar parts are designated by the same letters of reference.
Figure 1 of the accompanying drawings is a plan of a corner of a slate in a frame
the parts of which are shown as being held firmly together by a staple.
Figure 2 is an elevation thereof.
Figures 3 and 4 are respectively plan and elevation of a corner of a slate in
which the parts of the frame are mitred and held together by a nail driven through
in a horizontal direction in line with the slate itself.
Figures 5 and 6 are respectively plan and elevation of a modification.
Figure 7 is a plan view of a corner of a slate the frame of which is solely held

page_text: together by my fastenings and Figures 8 and 9 are elevations showing same with
the fastenings at different periods in the manufacture.
Figures 10 and 11 are respectively plan and elevation of one end of a slate
showing the mode of application of one staple to each end.
Referring to Figure 1 the corners A and B of the writing slate or other frame are
mortised and fastened together in the usual way by a pin a. D designates the slate
or its equivalent. The staple C is then driven into the parts A and B and firmly
holds the corners together. In this manner all the strength of the metal corner
bindings is obtained at much less cost and in addition thereto the stiffness of the
joint is considerably increased. In this case the ends of the staple do not project
quite through the frame.
Referring to Figures 3 and 4 the corners of the frame are mitred and provision-
ally secured by a nail or pin a not shown in Figure 3 in order not to unnecessarily
complicate the drawing. The ends of the staple go right through the frame and
are clinched on the other side.
Figures 5 and 6 show the application of staples C C that is one on each side.
The ends of the staples are here shown to have gone right through and are filed flat
on the other side.
Figures 7, 8 and 9 represent the application of a sort of double staple which i, arst
inserted as shown in Figure 8, the ends are then bent at approximately right angles
and forced from both sides to bury themselves in the part B.
The usual pin a is not shown in these figures but it is evident that it or any other
similar device may be used or not as desired with this or any other construction all
as found most convenient.
Referring to Figures 10 and 11 which show one end of a framed slate one staple C
is used to connect together the corners A and A of the long sides of the frame and
they thus hold the short part B of the frame securely between them.
I have in all cases shown the frame provided with grooves so as to allow the
staples C to be flush with the surface of the wood or other material of which the
frame is made but it is evident that such grooves may be omitted and the staples be
allowed to project. The wire forming the staples may be of any suitable material
and section and if made of iron I prefer to use it galvanized or covered with some
suitable coating to prevent rust. The fastenings or staples herein described may be
used with any kind of corner joints but I have not deemed it necessary to shew all
such known joints as the means or mode of application of my fastenings would
be apparent to any one skilled in the art. It is also evident that the ends of the
staples may be sharpened or not as found most convenient.
Having now particularly described and ascertained the nature of my said inven-
tion and in what mauner the same is to be performed I declare that what I
claim is :-
The constructions of fastenings for joining or strengthening the corners of a frame
for containing a slate picture or the like substantially as described and shown.
Dated this 23rd day of November 1891.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.