Improvements in connection with Stretching Frames for Pictures and the like.
Year: 1892

page_text: Date of Application, 16th Dec., 1892
Complete Specification Left, 8th Mar., 1893-Accepted, 13th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in connection with Stretching Frames for Pictures
and the like.
RICHARD BROWNLIE 75 & 77 Victoria Street Belfast Ireland, do hereby declare
the nature of this invention to be as follows:-
New method for mounting and framing prints & other pictures. The principal
involved in this invention is the effectual protection of the picture by having wood
panel fitting into rabbet at back of stretching frame.
December 16th 1892.
COMPLETE
SPECIFICATION.
Improvements in connection with Stretching Frames for Pictures
and the like.
1 RICHARD BROWNLIE of 75 and 77 Victoria Street, Belfast, Ireland, Picture
Frame 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 :-
My invention relates to improvements in stretching frames for prints, photographs
and other pictures or paintings, the object of which is, to prevent the said picture
or the like stretched thereon from being broken or ruptured through falling or
otherwise, whereby hitherto many valuable pictures or paintings have been spoiled
through falling upon some hard, and probably sharp or pointed substance, such for
instance, as the back of a chair or the like, or where a picture may have been
standing upon the floor, during spring cleaning or removal, and the leg of a chair
or the like may have been brought into violent contact with the face, or glass and
face of the picture, the result being that the back board (if any) being hitherto of
thin material, would either break or bend against the force of the impact, sufficiently
to allow the said chair back or leg to puncture the picture, but according to my
invention as hereinafter explained, such puncture of the picture cannot occur,
unless the said blow be unreasonably excessive, hence the purpose of my
invention.
In order that my invention may be clearly understood, I have appended a sheet
of drawings, in which
Fig. 1 is a perspective back view of a stretching frame according to my inven
tion, while Fig. 2 is a like perspective view of the backboard 1 employ in connection
with same.
Fig. 3 is a back view of Figs. 1 and 2 when in position within a picture
frame.
Fig. 4 is an enlarged vertical section of a back board formed as at Fig. 2, but
consisting of two thicknesses of board, the grains of which are reversed relatively
to each other.
Fig. 5 is a vertical section of Fig. 3 upon the line A. B.
Fig. 6 is a perspective view of Fig. 3, for the purpose of illustrating that, the
back board and stretcher frame being flush with the back of the picture frame, the
whole may be papered over to keep out dust and dirt.
I carry my invention into effect by forming in the stretching frame A, a rabbet B,
of sufficient depth to receive a bevel edged thick back board C, Fig. 2, which may
be made from one piece of board, or of two or more thicknesses of board placed
Price Al

page_text: face to face, and glued together with their grains reversed, as shewn by a and a¹ in
the enlarged view Fig. 4, wherein two such thicknesses only are employed. This
system of building the back board C is especially useful in connection with the
frames of large pictures, where the increase of the area of the back board as
hitherto made and used, would lessen its rigidity, but by reversing the grain as
stated and shewn, this would be able to resist a far greater blow than would be the
case if only one thickness of wood was used, and this without adding to the weight
of the backboard, as the thickness of the several layers would, collectively, not be
in excess of that where only one thickness was used.
The thickness of the stretching frame A. between its front face and bottom of
the rabbet B wherein C would be seated, need be only sufficient to keep C from
being in actual touch with the back of the picture, in order that the sap or
turpentine in C may not spoil or disfigure the same. This will be clearly under-
stood by reference to Fig. 5, in which 6 is the stretched print or picture, and c the
space between 6 and the backboard C, d being the glass of the outer frame D, when
such be used.
is
The object of the bevel on C is to provide a recess for the tacks e, used for
fastening C into the rabbet B in A, so that when A and its print or picture
placed in the frame D, the back surface of A. C and D may be level, in order that
the whole of the back may be papered or otherwise covered, as shewn by E Fig. 6,
to keep out dust and dirt."
If the face of the framed picture & mounted upon a stretching frame A, with
backboard C, constructed and arranged according to my invention, should come
violently in contact with a hard substance (although this may be sufficient to break
the glass d if such be used) the picture would not be punctured or spoiled, as the
rigidity of would in all ordinary cases be sufficient to prevent this, and in large
pictures, such rigidity of C would be maintained without adding to its weight, by
composing this of several thicknesses with the grain reversed as stated.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is
For improvements in connection with stretching frames for photographs prints
pictures or the like, the construction and use of a stretching frame A, with rabbet B,
for receiving and holding a bevel edged back board C, made of one piece of board,
or two or more thicknesses of board glued together face to face with their grains
reversed, substantially as and for the purposes herein described and shewn by the
accompanying drawings.
Dated this 8th day of March 1893
GEO. THOS. HYDE,
4, Moorfields, Fore Street, London, E.C., Agent for the Applicant.