AN IMPROVED MACHINE FOR CUTTING OR PLANING AND SHAPING WOOD
Year: 1885

page_text: I, WILLIAM EDWARD GEDGE, of No 11 Wellington Street Strand, London, in
the County of Middlesex, Patent Agent, do hereby declare the nature of my
invention for "AN IMPROVED MACHINE FOR CUTTING OR PLANING AND SHAPING
WOOD" to be as follows:
This invention relates to a new machine for cutting, planing, shaping, or
dressing wood, by means of knives or cutters arranged to operate simultaneously
upon two faces and regulating themselves according to the various requirements
of the work, either perpendicularly or obliquely. It consists in a new system of
machine with cutters of various forms operating upon the wood perpendicularly or
obliquely by the aid of a lever with rack acting upon connections and discs for
setting the tools apart and with traction or regulating screw for the height; in a
system of advancing the table; and in the general arrangement of the machine.
This machine is composed of a frame carrying all the parts. Two lateral screws,
in connection by an endless chain, serve to raise and lower slides or guides upon
which are fixed, by the aid of screws with countersunk heads, discs receiving two
other discs which may move circularly upon a hinge. Upon these discs are also
fixed, by screws having countersunk heads, slides or guides upon which are placed
the pieces carrying the tool; by unscrewing the bolts which keep them fixed to
the slides or guides they do not yield to the traction of the lateral screws, they
only raise and lower by the slides the entire movement of discs and slides which
determines the extent of the radius which it is desired to obtain during the
working.
Accordingly as it may be desired to have more or less inclination of the cutters,
the tool-holder is turned and the fastening screws are tightened.
The movement operating and regulating the distance apart or gauge of the cutters
is composed of a lever, fixed to the frame, upon the centre of which is a segment
or a toothed wheel, actuating a rack moving vertically and fixed to a slide carrying
two small connecting pieces or rods joined to the discs.

page_text: When the lever is raised or lowered, there is produced by the aid of the con-
nections, a coming together or a movement apart of the discs which turn on the
discs upon which are placed the tool-holders, and thus the knives cutting the
wood are moved further apart or brought closer together.
Upon the lever is a spring provided with a stop or catch which takes into the
notches of a sector to fix the working or governing lever according to the setting
apart that it is required to obtain for the cutting tools.
At the end of the lever is a sector upon which winds a steel blade provided with
a rod or a cord, at the end of which is suspended a counterweight to counterbalance
the weight of the discs, slides and tool-holders.
The rotary movement of the tools is operated by the aid of cords each passing
over pulleys fixed on the axles of the cutters or knives, and returning over guide
pulleys to go from thence to a double grooved driving pulley.
a
A bed is placed in the centre of the frame; it carries a slide in which may travel
plate or table receiving the piece to be operated upon. This table is provided
with a handle having a flat spring upon which is rivited a cramp or catch that
may take into the links or meshes of an endless chain.
The part of the bed adhering to the main frame, is composed of a frame
supporting two pulleys, the one fixed the other loose; upon the axle of the pulleys
is a bevel pinion giving motion by means of a conical toothed wheel to an endless
screw actuating a helicoidal wheel, upon the axle of which there is a toothed
pinion receiving an endless chain which at the other end winds upon a toothed
pinion.
The plate or table being engaged by its cramp or catch with the endless chain
when the work is finished, it is only necessary to lift the handle to cause the
disengagement of the catch and the plate or table is then withdrawn by the
handle.
Any kind of clamps or hold fasts may be arranged on the plate or table for
tightening or securing the piece of wood to be operated upon.

page_text: lever is a sector upon which winds a steel blade provided with a rod or a Cord m at
the end of which is suspended a Counterweight P to counter balance the weight of
the discs, slide and tool holders.
The rotary movement of the tools n n¹ is operated by the aid of Cords each
passing over pulleys p p¹ fixed on the axles of the Cutters or Knives and returning
over guide pulleys q q¹ to go from thence to a double grooved driving pully D.
A bed E is placed in the centre of the frame; it carries a slide in which may
travel a plate or table F receiving the piece to be operated upon. This table is
provided with a handle having a flat spring upon which is rivetted a Cramp or
catch that may take into the links or meshes of an endless Chain G..
The part of the bed adhering to the main frame is composed of a frame sup-
porting two pulleys, the one fixed the other loose; upon the axle of the
pulleys is a bevil pinnion S, giving motion by means of a Conical toothed wheel t
to an endless screw u actuating a helicoideil wheel v upon the axle of which there
is a toothed pinion x receiving and endless Chain G which at the other end winds
upon the toothed pinion y.
The plate or table being engaged by its cramp or catch with the endless chain
when the work is finished, it is only necessary to lift the handle to cause the
disengagement of the Catch and the plate or table is then withdrawn by the
handle.
Any kind of Clamps or holdfasts may be arranged on the plate or table for
tightening or securing the piece of wood to be operated upon, and I would have
it understood that I do not limit myself to the exact form of the parts drawn or
described.
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. The above described system of machine for dressing or trimming wood, either
perpendicularly or obliquely, with Cutters or knives of various forms, by the aid
of a lever with rack acting upon Connecting rods and discs for setting the tools
apart, and with adjusting screw for the height.
2. The system of advancing the plate or table with spring handle and Catch for
engaging in the meshes of an endless Chain.
3. The general arrangement of the machine.