STONE DRESSING MACHINES
Year: 1884

page_text: I, HOWARD DOUGLAS WALLACE, of St. George, New Brunswick, Canada,
Manufacturer do hereby declare the nature of my invention for "STONE
DRESSING MACHINES" 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 an improvement in Stone Dressing Machines; and
it consists in the combination of suitable uprights, provided with guides, a
reciprocating frame which moves upon the guides, a rotating standard placed in
the reciprocating frame, and carrying suitable cutter disks, and a mechanism for
reciprocating the frame.
It still further consists in the combination of a reciprocating frame, provided
with a rotating standard, carrying disks, and screws by means of which the disks
can be adjusted back and forth, in relation to each other according as a wide or
narrow surface is to be dressed, as will be more fully described hereinafter.
The object of my invention is to provide a machine for dressing the surfaces of
stone, in which two or more disks placed one above the other are used, the disks
being set at any desired angle to the stone, which is moved along by means of a
carriage, while the disks are given a reciprocating movement at right angles
thereto.
Figure 1 is a side elevation of my invention.
Figure 2 is a plan view of the saine.
Figure 3 is an enlarged detail view.
A, represents two uprights which are placed in a line with each other, and at
right angles to the track upon which the stone is moved by means of the carriage K,
which is moved back and forth on its track L, by means of any suitable mechanism,
and is provided with mechanism by means of which an adjustment at right angles
to its line of travel can be made, in order to regulate the depth of the cut, and
also a circular motion which is necessary in cutting tapered stones, or moulded
work. To each of these standards A, are secured either two short guides B, by
means of suitable brackets C, or one longer guide, as may be preferred.
Loosely passed over these guides B, are the prongs D, of the vertically
reciprocating frame E, which is attached by means of a connecting rod F, to the
crank G, or any other suitable mechanism for imparting a reciprocating movement
to the frame upon the guides B. The frame is provided with two prongs D, at

page_text: each of its ends, as shown in Figure 1, so as to be braced rigidly against any
lateral play or movement while the disks are in operation. The two end pieces of
the frame E, are connected rigidly together, either by means of the rotating rod H,
or by a separate and distinct piece, as may be preferred. Each one of these end
pieces D, of the frame E, has a socket made in its inner side into which the circular
disks G', are fitted. These disks G¹, are secured to the opposite ends of the rotating
standard H, which has the disk carriers I, movably connected thereto, in any
suitable manner.
Each one of these disk carriers has journaled at its outer end, a
suitable disk J, which, while they can be rotated when they come in contact with
the stone, have no movement of their own. These disk carriers have their inner
ends attached to the rotating standard in any manner that may be preferred, and
are made adjustable in relation to each other by means of right and left threaded
screw. O, which passes through both of them. By means of the screw, the two
disks J, can be moved near together or far apart, according as the surface of the
stone to be dressed is wide or narrow. As the rotating standard H, can be turned
freely upon its vertical axis, the disks can be set at any desired angle in relation
to the stone which is moved along upon a carriage, and at right angles to the line
As the disks come in
of travel of the two disks as they are made to reciprocate.
contact with the surface of the stone, they are made to revolve, and thus constantly
present a new surface to the stone which is being dressed.
The stone having been placed upon its carriage, and the disk having been given
a reciprocating movement by the crank or other device G, the disks cut or dress
the surface of the stone accurately and smoothly, and with much greater rapidity,
than can be accomplished by hand.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what I
claim is :-
.
1. In a stone cutting machine, the combination of suitable guides, secured to
suitable uprights or supports, a reciprocating frame attached to the guides, a
rotating standard to which the cutting disks are connected, and a screw placed in
the frame for regulating the distance between the cutting disks, substantially as
shown.
2nd. In a stone cutting machine, the combination of the posts A, having suitable
guides secured to them, the vertically reciprocating frame, attached to the guides,
the end pieces D, of the reciprocating frame, having suitable recesses in their inner
sides; the partially rotating rod H, having the disks G¹, secured to its ends, and
fitting in the recesses in the parts D, the cutting disks, and a screw for regulating
the distance between them, substantially as described.
1001