Year: 1886

page_text: I, WILLIAM MARTIN of 7 High Park Crescent, Aylesbury Street, Walworth in
the County of Surrey, Engineer, do hereby declare the nature of this invention
to be as follows:-
This machine is designed to effect the cutting of oval or round mounts of card-
board or other suitable material, with bevelled edges, for picture frames and other
purposes.
It consists of the following parts, which for convenience of reference I will
designate by the letters respectively attached to such parts.
1. The Frame; consisting of two. transverse horizontal bars (C) supported on
vertical uprights (B) at each end, which stand on the work table, at a suitable
distance apart.
2. The Oval plate (D) suspended in a horizontal position from the frame bars (C)
such plate (D) having a slot or aperture (E) in the form of a cross.
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3. Two bolts with nuts at each end (I) which pass through the slot (E) and are
suspended vertically from the oval plate (D).
The upper ends of these bolts are embraced by a slotted plate (F) in which plate,
one of them slides to and fro, and in which their distance from. each other is
regulated according to the size of the mount to be cut. This plate (F) is placed
above the oval plate (D). Underneath the said oval plate (D) is a similar slotted
plate forming one end of an angular bracket or stay (G) the other end of which
bangs vertically and supports the arm (K) described in next paragraph.
Below the horizontal portion of the bracket (G) the two bolts (1) are enlarged,
and so arranged as to carry a horizontal arm (J) which arm is fixed to one of the
said bolts, and slides freely through the other. At one end of the arm (J) is a
feather nut and screw, while at the other is hinged the curved end of the arm (K)
described below.
4. The arm (K) after leaving the hinge joint just referred to, descends vertically'
a short distance so as to clear the nutted ends of the bolts (I) and then starts off
at right angles in a horizontal position engaging with the lower end of the
bracket (G). This arm (K) is marked with a graded scale of distance so as to
indicate the size of the aperture the knife is to cut, and the alotted plate (F) is
imilarly marked.
H

page_text: .
5. Sliding upon this arm (K) is the knife-holder (L) which holds the knife in a
slanting position at any required angle. The knife (Q) is fixed in a slide so as to
be adjustable to the work and is forced down into any required position by a milled
nut, and held tight by a thumb-screw; and a presserfoot holds the paper steady
while the knife is cutting.
When it is required to cut a circle instead of an oval, the arm (K) and the
perpendicular end of the bracket (G) are removed by means of thumb screws or
pins provided for the purpose, and a special bolt or centre block (R) is inserted in
the centre of the cross-shaped slot in the oval plate (D). This bolt (R) terminates
in a fork (V). The arm (K) is now attached to the fork (V) by means of a swivel
pin, and the motion of the knife becomes circular instead of elliptic.
The result of this arrangement is that when the material to be cut is fastened
underneath the machine, upon the work table, on the arm (K) being pulled round,
the bolts (I or R) guided by the cross-shaped slot in the oval plate (D) in which
they work describe such an orbit as to compel the knife-holder (L) to cut the
required oval or round opening, with a perfectly similar, bevel all round its edge,
and with an accuracy and certainty not attainable by hand.
COMPLETE SPECIFICATION.
A Machine for Cutting Oval and Round Bevelled Picture
Mounts.
I, WILLIAM MARTIN of 7 High Park Crescent Aylesbury Street, Walworth in
the County of Surrey, Engineer, 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 operation of cutting out oval picture mounts from card and similar materials
aud especially when required with beveled edges, has hitherto been a difficult and
tedious operation, but by means of my machine, the difficulty has been effectually
surmounted.
Similarly; the cutting of oval panes of glass with accuracy, have also been
extremely irksome to accomplish speedily and satisfactorily.
My Machine effects all these operations with surprising ease, rapidity and
accuracy, and also performs the same operation with regard to circles.
It consists of four distinct divisions or parts.
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1. The Frame which supports the mechanism and from which the working parts
are suspended.
'J

page_text: 2. The guiding mechanism (oval and round) by means of which the tool is
directed in its orbit.
3. The tool-holder and arm to which it is attached.
4. The tools of various kinds adapted to the varying operations required.
'I will now described these parts seriatim and will refer at once to the accom-
panying drawings in which similar letters denote similar parts throughout.
1. As to the Frame; This consists of two parallel horizontal bars O set on edge,
and having their ends supported by two vertical pillars or A shaped uprights B.
These uprights are so designed as to be fastened to the Work-table, or to stand
firmly thereon, at a suitable distance from each other to allow the work to be placed
below the bars C.
2. As to the guiding Mechanism. This being of a rather intricate character can
be best described by means of letters referring to the various parts in the accom-
panying drawings. It consists of an oval iron plate D suspended in a horizontal
position from the frame-bars C such plate D having a slot or aperture E in the
form of a cross.
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Two bolts with nuts at each end I which pass through the slot E and are
suspended vertically from the oval plate D. The upper ends of these bolts are
embraced by a slotted plate F in which plate, one of them slides to and fro, and in
which their distance from each other is regulated according to the size of the mount
to be cut. This plate F is placed above the oval plate D. Underneath the said
oval plate D is a similar slotted plate forming one end of an angular bracket or
stay G the other end of which hangs vertically and supports the arm K described
in next paragraph: Below the horizontal portion of the bracket G the two bolts I
are enlarged, and so arranged as to carry a horizontal arm J, which arm is fixed
to one of the said bolts and slides freely through the other. At one end of the
arm J is a feather nut and screw Z while at the other is hinged the curved end
of the arm K described below.
3. As to the Tool-holder and Arm:-
The arm K after leaving the hinge joint just referred to, descends vertically a
short distance so as to clear the nutted ends of the bolts I and then starts off
a right angles in a horizontal position engaging with the lower end of the
bracket G. This arm K is marked with a graded scale of distance so as to
indicate the size of the aperture the Knife is to cut, and the slotted plate F is
similarly marked. Sliding upon this arm K is the Tool-holder L which holds the
Knife in a slanting position at any required angle. The Knife Q is fixed in a slidé
so as to be adjusted to the work and is fixed down into any required position by a
washer and thumbscrew and a small roller keeps the paper steady while the Knife
is cutting.
When it is required to cut a circle instead of an oval, the arm K and the perpen-
dicular end of the bracket G. are removed by means of thumb-screws or pins
provided for the purpose, and a special bolt or centre block R is inserted in the
centre of the cross-shaped slot in the oval plate D. This bolt R. terminates in
a fork,
The arm K is now attached to the fork by means of a swivel pin S. and the
motion of the Knife becomes circular instead of elliptic.
The result of this arrangement is that when cutting mounts for pictures the
material to be cut being fastened underneath the machine, upon the work-table, on
the arm K being pulled round by the hand of the operator the two bolts I guided
by the cross shaped slot in the oval plate D in which they work describe such an
orbit as to compel the Knife-holder L to cut the required oval opening with a
perfectly similar bevel all round its edge, and with an accuracy and certainty
not obtainable by hand. Similarly when the bolt R is used a circular orbit is
described by the Knife or tool.
'
4. As to tools for various purposes. Experience having shown the applicability
of my machine for other purposes besides cutting picture mounts, such as cutting
ovals or circles in glass, leather, or other materials, it is only necessary to remove

page_text: the Knife blade and substitute cutters of other patterns, or in the case of glas
a glaziers diamond to ensure the desired result.
In the accompanying drawings:
Fig. I. shows an elevation of the entire apparatus as used for cutting bevele
edge mounts.
Fig. II. shows a plan of the apparatus without the Tool-bolder.
Fig. III. shows a full-size elevation of the reverse side of the Tool-holder.
Fig. IV. shows the centre-block used when cutting out circles.
A. represents the surface of the work-table.
B. represents the vertical pillars.
C. represents the horizontal bars.
D. represents the oval plate.
E. represents the cross-shaped slot in the oval plate D.
F. represents the upper-slotted plate.
G. represents the angular bracket.
I. I. are the two bolts.
J. is the upper horizontal arm..
K is the lower horizontal arm.
I represents the tool-holder.
M shows a milled nut and coiled spring which adjusts the tool.
N shews a feathered nut which holds the tool.
O shews the thumb-screw which fixes the tool-holder to the arm K.
P shews the small convex roller which keeps the work steady.
Qshews the Knife used for cutting paper and the like.
R. shews the Centre block used for circular work.
S. shews a small swivel pin which fastens the arm K,
Having now particularly described and ascertained the nature of my sai
invention and in what manner the same is to be performed, I declare that wha
I claim is:-
1. A special adjustable tool-holder sliding on an arm suspended from bolts whic
bolts work in two slotted plates and a cross-shaped aperture in an oval plate, th
whole being sustained by horizontal transverse bars and furnished with measurin
scales, and forming an apparatus for cutting or marking ovals or circles, as herei
described and set forth.
2. An adjustable apparatus for use on a work-table capable of striking out o
cutting out ovals or circles of various sizes with beveled or plain edges as require
as herein explained and described.