IM- PROVEMENTS IN MACHINERY FOR MOULDING, CUTTING, AND CARVING WOOD AND STONE
Year: 1857

page_text: application for Letters Patent was not given within the time prescribed
by the Act.)
PROVISIONAL SPECIFICATION left by John Anderton, Jonas Foster
Rushworth, and Joseph Benn, at the Office of the Commissioners of
Patents, with their Petition, on the 8th August 1857.
We, JOHN ANDERTON, Book-keeper and Draftsman, JONAS FOSTER RUSH-
WORTH, Book-keeper, and JOSEPH BENN, Mechanic, all of Queenshead, in the
County of York, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN MACHINERY FOR MOULDING, CUTTING, AND CARVING WOOD AND
STONE," to be as follows:-
Our improvements in machinery for moulding, cutting, or carving wood and
stone, relate to apparatus applied to planing machines such as used for cutting
stone, metal, and other hard bodies, whereby the cutting tools are so operated
upon as to cause the production of moulded or carved ornamental forms on
the wood or stone being planed or operated upon in the machine.
For this purpose we use a planing machine such as used for planing metal,
in which a sliding table traverses backwards and forwards, propelled by a screw
shaft, receiving motion alternately in opposite directions, or the motion may
be communicated by a rack, or other suitable means. On the one end of the
screw shaft we place a pinion, which gears into a stud wheel forming one of a.
pair fixed together; the second stud wheel gears into another toothed wheel

page_text: fixed on a short shaft placed at the side of the machine. The motion is reduced
by this gearing or otherwise regulated to suit the purpose. The one end of
the short wheel shaft is furnished with a socket, which receives within it another
shaft forming a continuation of the same, and is so fitted to the socket as to be
carried round with it, but is at the same time free to slide in its bearings in
the direction of its length. This sliding shaft passes through the centre of a
fixed stationary disc or plate, having on its side an undulating or irregular
outline, which forms a course on which a roller travels. This roller is mounted
on an axis projecting in a radial direction from the sliding shaft, and is carried
round by it; during this rotation, its end motion is regulated and controlled
by the undulating surface of the course on which the roller travels. The
longitudinal or end motion of this shaft is communicated to the upright arm of
a bell-crank lever, the other and horizontal arm of which takes effect upon a
horizontal lever, the fulcrum of which may be varied so as to produce a greater
or less extent of motion at the opposite end of such lever; this opposite end
of the lever is connected by a rod with the cross slide and tool carrier of the
planing machine, which so receives an up-and-down motion, according to the
form of the course on which the roller travels. The bell-crank lever before
mentioned is mounted on a shaft, which passes through below the machine,
and has a lever arm at the opposite end which acts on a second horizontal
lever, with adjustable fulcrum on the opposite side of the machine, which is
connected with the cross slide at the other side of the machine, thereby im-
parting movement to the cross slide at both ends simultaneously. In order to
impart a cross traverse to the tool carrier on its slide while the machine is in
operation, an apparatus somewhat similar to that before described is adapted
to suit the purpose required. On the opposite end of the screw shaft I mount
a toothed wheel, as before mentioned, which by toothed gearing communi-
cates motion to a shaft at the side of the machine, such motion being trans-
mitted by bevil gear to a cross shaft under the bed of the machine immediately
under the cross slide; this cross shaft is in two parts, and furnished with a
sliding socket, as before. The sliding part of the shaft passes through the
centre of a circular disc or plate having an undulating course on the side for
the traverse of the roller carried round by the sliding shaft, which controls its
end motion precisely as before. The end of this shaft takes effect on the tail end
of an upright lever, the opposite end of which lever is connected with the tool
carrier, and thereby imparts to it horizontal motion on the cross slide, accord-
ing to the pattern required and as produced by the pattern surface on which
the roller travels; the fulcrum of the last-mentioned lever is adjustable to
regulate the leverage, as may be required. .

page_text: By these means a cross horizontal motion as well as a vertical motion can
be imparted to the tool box or carrier separately, or both movements may be
communicated at the same time. We further repeat or furnish duplicate
parts of the apparatus on either side of the machine, so as to impart the
horizontal motion to two or more tool carriers, so as to cut two or more
duplicates of the same pattern, or to cut two or more different patterns at the
same time.