An Improved Adjustable Cramp for use in Making Picture and other Frames, and applicable for any similar purposes.
Year: 1897

page_text: An Improved Adjustable Cramp for use in Making Picture and other
Frames, and applicable for any similar purposes.
We, EDWIN DOWNING, of The Green, Stony Stratford, Bucks, Art Metal
Maker, and WILLIAM MUMFORD, of Russell Street, Stony Stratford, Bucks,
Manager, do hereby declare the nature of this invention to be as follows:-
Our invention relates to an improved adjustable cramp for use in making
picture and other frames, and applicable for any similar purposes. The cramp
consists essentially of four corner pieces, the arms of which are at right angles
to each other, and intended to extend a short distance along the sides and ends
of the frame. These corner pieces may be made of any suitable material such
as malleable iron. The ends of each of the arms are turned out at right angles,
and one of the out-turned ends is provided with a square hole and the other of
them with a round hole. Holes may also be provided in the arms for the inser-
tion of the brads or nails used in making the frame. For use with the corner
pieces, I provide four rods of suitable and convenient length. Each rod is
square in section for the greater part of its length, one end being however screw
threaded and provided with a wing nut. Holes are provided at intervals along
the squared part, also a washer or loose collar and a split pin. The corner pieces
are connected in the following manner. The screw threaded end of one of the rods
is passed through the sound hole in one of the outwardly turned ends of one
of the corner pieces, and the wing nut screwed on. The square end of the rod
is then put through the square hole in one of the outwardly turned ends of the
adjacent corner piece, the washer threaded on, and the split pin put through
one of the holes in the rod. The same operations are gone through with the
other rods. The four corner pieces having been thus connected, the cramp is
used by arranging within the corner pieces the mitred and glued pieces of
material, which are to form the frame. The split pins and collars are then
arranged so as to bring the corner pieces as close as possible in contact with
the corners of the frame material, and the final tightening up is done by turning
the winged nuts on the screw threaded ends of the rods. Brads or nails may
then be driven through the holes provided for them to pass through in the corner
pieces, and the cramp may then be removed or left till the glue is dry. Rods
of various lengths may be furnished with each set of corner pieces so as to
accommodate frames of various sizes.
Dated thin 17th dove of Aument 1007

page_text: An Improved Adjustable Cramp for use in Making Picture and other
Frames, and applicable for any similar purposes.
We, EDWIN DOWNING, of The Green, Stony Stratford, Bucks, Art Metal
Worker, and WILLIAM MUMFORD, of Russell Street, Stony Stratford, Bucks,
Manager, 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:-
Our invention relates to an improved adjustable cramp for use in making
picture and other frames and applicable for any similar purposes. In carrying
the invention into effect I proceed in or in about the following manner making
reference to the accompanying sheet of drawings in which Fig. 1 is a front
view of the complete cramp in use and Fig. 2 a front view of a modified detail.
The cramp consists essentially of four corner pieces each consisting of an arm a
at right angles to another arm b, the end of a being turned out at right angles
as ate and b as at d. The end c is provided with a round hole and d with a
square hole. Through is passed the screw threaded end e of the otherwise
square rod f, the other end of f being passed through the square hole in d
of the adjacent corner-piece, and so on with the other three corner pieces and
rods. On each screwed end e is a wing nut g and in the squared ends off are
holes at intervals, each at right angles to the one immediately preceding it
and the one immediately following it. A split pin i is provided for each rod
and also a washer j. Holes or a hole are or is provided in each arm a and b.
The four corner pieces having been connected as above mentioned the cramp is
used by arranging within the corner pieces the mitred and glued pieces of
material to form the frame k. The split pins i and washers are then arranged
so as to bring the corner pieces as close as possible in contact with the corners
of the frame material and the final cramping up is done by turning the wing-
nuts g. Brads or nails may then be driven through the holes in a and b so as
to pass into the mitred corners of . The cramp may then be removed or left
till the glue dries. Rods of various lengths may be furnished with each set of
corner pieces so as to accommodate frames of various sizes.
In some cases, especially for small sizes, the four rods may be screw threaded
from end to end or nearly so as shown at Fig. 2, in which event the squared
ends, washers and pins are of course not required, but a head 7 is provided to
serve the purpose of the pin i and washer j.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
-
1. An improved adjustable cramp for use in making picture or other frames
and applicable for any similar purposes, the said cramp consisting essentially
of four right angled corner pieces within which to hold the properly adjusted
mitred material to form the frame, each corner piece consisting of two arms at
right angles to one another, each arm having an outwardly turned end, the
outwardly turned ends of the several corner pieces being connected with one
another by bolts having one end screw threaded and provided with a wing nut,
the other end of each bolt being square in cross section and provided with a
washer or equivalent and with holes at intervals for the reception of a split pin
or equivalent, the whole substantially as described in the above specification and
exemplified in Fig. 1 of the accompanying drawings.

page_text: 2. A modification of the apparatus which is the subject matter of the above
Claim 1, by which modification is substituted for the square rod a headed rod
screw threaded from end to end, substantially as described in the above specifi-
cation and exemplified by Fig. 2 of the accompanying drawings.
3. An improved adjustable cramp for use in making picture and other frames
and applicable for any similar purposes the said cramp being constructed and
operating substantially as described in the above specification and exemplified
by the accompanying drawings.