An Improved Tool for Cutting Chips.
Year: 1894

page_text: Date of Application, 22nd Aug., 1894-Accepted, 10th Nov., 1894
COMPLETE SPECIFICATION.
An Improved Tool for Cutting Chips.
I, KARL AUGUST SEIFERT, of 10, Forstweg, of Freiberg, in the Kingdom of
Saxony, German Empire, Machinist, 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:-
This invention refers to a tool for the cutting of chips as used in households for
kindling fire. My improved tool is shown in the accompanying drawing, and is
constructed as follows:
An oblong plate a (Figs. 1-4) adapted to be fixed to a wall or the like, is
provided with a projecting bearing plate having a slot b¹.
An axle c holding on
its righthand portion a wheel d, and being held itself at its lefthand portion by a
slide e may move up and down within said slot b¹. Slide e is guided by a piece of
tube f, and is acted on by a spring y constantly tending to press said slide
upwards.
Wheel d afore mentioned is on half its circumference provided with teeth d¹
gearing with a rack / arranged on plate a at the righthand side of the projecting
bearing-plate b. A lever furnished with a handle k, and carrying the knife lis
secured to wheel d at the other half of the latter. If said lever is swung downwards
the fulcrum for the same will be formed by those teeth of wheel d and rack h,
which just are in gear with each other. In consequence of the gear of said two
toothed parts, the fulcrum of lever i is lowered during the downward movement of
the latter, and also axle c, therefore, glides down within slot 6', thus causing
compression of spring 9.
The piece of wood to be converted into chips is supported by a frame m held by
an axle n arranged at an incline to the wall-plate a, and being held itself by
projections forming part of plate b. A screwed spindle o held by the front-
part m¹ of frame m, and by a projection m³ of the latter, carries a clamp p adapted
to be pressed against the respective piece of wood by said spindle. The inner side
of frame-portion m¹ has projections or teeth m³ adapted to secure the hold of the
wood. Spindle o may be operated by handle r.
For predetermining the thickness of the chips to be cut, lever i is provided with
an arm holding a displaceable or adjustable rod s. The piece of wood, that is to
say, the portion projecting beyond the righthand edge of frame-portion m³ is swung
to the right until it touches said rod s. Knife is then moved downwards by
lever i so as to cut off the desired chip. Frame m is supported during that time by
a projection a' forming part of plate a.
Handler serves for operating the clamp p as well as the whole frame m m².
Instead of employing a movable frame for holding the piece of wood, I may use
a fixed support t, together with a fixed bow w, as shown in Figs. 5-7. The piece
of wood must then be put by hand against rod 8. In all other parts, this mode of
execution is the same as above described. .
Having now particularly described the nature of this invention, and in what
manner the same is to be performed, I declare that what I claim is :-
1. In a tool for cutting chips, the combination with the knife-lever i having at
its fulcrum the teeth d', of a rack h adapted to lower the fulcrum of said lever,
substantially as described.
2. In a tool for cutting chips, the combination with the knife-lever i having at
its fulcrum the teeth a', of a rack h adapted to lower the fulcrum of said lever, the

page_text: latter being guided by an axle e adapted to be moved in a slot b¹ of plate b,
substantially as described.
3. In a tool for cutting chips, the combination with the knife-lever i having at
its fulcrum the teeth d¹, of a rack h adapted to lower the fulcrum of said lever, the
latter being guided by an axle e adapted to be moved in a slot b₁ of plate b, said
axle being held by a slide e constantly pressed upwards by a spring 9, substantially
as described.
4. In a tool for cutting chips, the combination with the knife-lever i having at
its fulcrum the teeth d', of the wood-holder m m³ (Figs. 1-4), having the clamp p.
said teeth d¹ being in gear with a rack h, said holder m m' being held itself by an
inclined axle n, substantially as described.
5. In a tool for cutting chips, the combination with the knife-lever i having at
its fulcrum the teeth d', of the support t and a bow w (Figs. 5-7) for the piece of
wood to be cut, said teeth d¹ being in gear with a rack h, substantially as
described.
Dated this 22nd day of August 1894.
KARL AUGUST SEIFERT,
By Geo. H. Rayner,
37, Chancery Lane, London, W.C., Agent for the Applicant.