Improvements in Graters, more especially intended for Grating Vegetables.
Year: 1894

page_text: Date of Application, 9th Mar., 1894-Accepted, 14th Apr., 1804
COMPLETE SPECIFICATION.
Improvements in Graters, more especially intended for Grating
Vegetables.
I JOHN GULICK BAKER of No. 1922 North Seventh Street in the City of
Philadelphia State of Pennsylvania United States of America Mechanical
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 object of my invention is to construct a grating device which can be cheaply
made, which is extremely durable and is very efficient in action.
In the accompanying drawing :-
Figure 1, is a view partly in side elevation and partly in section of a grater
constructed in accordance with my invention;
and
Figure 2, is a sectional plan, the section being taken on the line 2-2, Figure 1 ;
Figure 3, is a perspective view of one of the grating fingers detached from the
rotating disc.
A represents a guide trough composed of a horizontal bottom plate and a vertical
side plate, this guide trough being secured to, or cast in one piece with, a clamping
frame B provided with means such as a clamp screw a by which the apparatus can
be readily applied to and secured upon the projecting portion of a table or bench.
From the clamping frame B projects an arm D which terminates in a tubular
bearing F adapted for the reception of the spindle 6 of the disc G which has a
handled whereby it can be readily turned. The said disc is supported upon the
bearing F by means of a shoulder f at the upper end of the spindle b.
Secured to and depending from the disc G is a series of grating fingers I, each
having a flange i at the top so that it can be secured to the disc G, by means of a
set screw m, each finger I also having a central vertical slot n extending almost
completely from top to bottom of the same, or it may, if desired extend completely
through to the bottom of the finger, it being preferable, however, to close the slot
at the bottom, so that the finger will possess greater strength at that point than it
would possess if the slot extended completely through the same.
The fingers I are of such size and are so situated around the disc G as to provide
spaces s between them, and on the front edge of each grating finger as well as
upon the rear edge of each slot n are formed a series of projecting teeth t.
The vertical side of the trough is thickened at so as to form a seat for a
block J, which is preferably of wood and is held in position by a set screw w and
washer w, as shown in Figure 2, and is slotted so that it can be adjusted nearer
to or further from the teeth of the grating fingers.
From the bottom plate of the trough A extends a segmental rim M which
encloses the lower portion of the grating fingers and forms a trough around the
same.
In using the device the vegetable or other matter to be grated is deposited in the
trough A and pushed in the direction of the arrow, Figure 2, towards the face of
the drum formed by the depending fingers I, the disc G being rotated in the direction
of the arrow, Figure by means of its handle d so that the teeth t of the grating
fingers will tear away small fragments which find their way through the spaces
and slots n into the interior of the drum and drop from the same into any suitable
receptacle, such of the particles as do not find their way into the interior of the
drum dropping into the trough M and being retained thereby.

page_text: By the adjustment of the block J nearer to, or further from, the grating teeth,
the size of the particles can be governed, and coarse or fine grating thus effected.
The use of a number of depending grating fingers is an important feature of the
invention, since each of these fingers can be readily cast without the use of a core,
hence the construction of the grating drum is materially simplified, the threaded
openings of the flanges of the fingers being readily and cheaply formed by
suitable machinery, and ordinary machine screws being available for securing the
fingers to the disc G.
Instead of forming each of the fingers with a slot n, there may, if desired, be
a greater number of fingers separated from each other by spaces s, or the fingers
may be of the same size as those illustrated, but without the central slot and second
set of teeth, or, on the other hand, each of the grating fingers may have more than
one slot with teeth at the rear edge of the same.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is :-
:―
1. A grater consisting of a frame with guide trough and bearing, and a grating
drum, consisting of a disc having a spindle mounted in the said bearing, the said
disc being provided with a series of depending grating fingers separated from each
other, and having projecting teeth on their forward edges, substantially as herein-
before described.
2. The herein before described grating device consisting of a frame having a
guide trough and bearing, and a disc having a spindle mounted in the said bearing,
the said disc being provided with a series of depending grating fingers with spaces
between them, each of the said fingers having projecting teeth on its forward edge
and having a vertical slot or vertical slots with projecting teeth at the rear edge of
the same, substantially as herein before described.
Dated this 9th day of March 1894.
JOHNSONS & WILLCOX,
Agents.