Universal Household Grater. Page: 2 of 2
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UNITED STATES PATENT OFFICE.
WILLIAM McKENDREE LAMBDIN, OF WACO, TEXAS.
UNIVERSAL HOUSEHOLD GRATER.Specification of Letters Patent.
Patented Apr. 4, 1922.
Application filed December 13, 1921. Serial No. 522,028.
To all 'whomit may concern:
Be it known that I, WILIAm MCIKENDREE
LAMDIN, a citizen of the United States, re-
siding at Waco, in the county of McLennan
5 and State of Texas, have invented a new and
useful Universal Household Grater, of
which the following is a specification.
My invention relates to an improvement
in the method of grating various substances
10 such as cocoanut, cheese, chocolate, vege-
tables, etc., by hand.
In the machine which I have invented, I
have eliminated the necessity of holding the
substance being grated between the fingers
15 and rubbing it back and forth over the
grater surface, with the attendant possi-
bility of a slip and resultant injury to the
fingers.
I attain these objects by means of the
20 mechanism illustrated in the accompanying
drawing, in which--
Figure 1 is a projection of the entire ma-
chine; Figure 2 a projection of the feeder
block; Figure 3 a projection of the holder
25 block; Figure 4 a projection of one of the
grater roller brackets with movable catch
open; and Figure 5 an enlarged detail of a
part of the grating surface of the grater
roller.
30 Similar numerals refer to similar views
throughout the several drawings.
The grater body box 1 with its legs 2 and
grater roller brackets 3, rigidly attached,
constitute the framework of the machine.
35 The substance to be grated is placed in the
forward end of the grater body box and the
feeder block 4 is placed in position behind
it. The holder block 5, which has on each
side of it a lug 6, fitting in a groove 7, in
40 the grater body box, is then dropped into
place on top of both the substances to be
grated and the feeder block, and holds them
in position by hand pressure, as the feeder
block is pushed forward by the fingers of
45 the same hand, thus feeding the substance
forward and against the grater roller S
which is revolved by a crank and handle 9,
turned by the other hand. The shaft 10
of the grater roller, is a continuation of the
50 crank 9, and rests in a deep notch 11 in each
of the grater roller brackets.Catch 12 revolves on a pivot 13 and is
locked in place by a projecting tit 14, which
fits into the round indentation 15 in the 55
catch when the latter is pressed down hold-
in the grater roller shaft securely in posi-
tion, but may be raised by an upward pres-
sure on its free end, allowing the grater
roller to be lifted from the brackets. 60
The grater roller 8 consists of a cylindrical
piece of stiff metal 16 with triangular pro-
jections punched through in close, staggered
rows and so arranged that no two projec-
tions in near proximity will come in contact 65
with the substance to be grated at the same
point and forming the grating surface as
shown on an enlarged scale in Fig. 5 of the
drawing. The metal cylinder 16 is attached to
the shaft 10 by the metal strips 17 which are 70
soldered or welded to the metal cylinder 16,
to the shaft 10 and to each other, and may
be of any form and number serving the pur-
pose of holding the metal cylinder 16 rigidly
in place. Castings of suitable form may 75
take the place of strips 17. A solidly en-
closed cylinder with the toothed grating
surface and rigidly attached to shaft 10 may
take the place of parts 16 and 17.
A hand knob 18 is attached to the feeder 80
block and to the holder block to facilitate
handling or lifting out; the knob on the
feeder block is so placed as to limit forward
motion of block and prevent its touching
the grater roller surface. 85
The legs 2 of the grater body box are of such
form as to give the machine stability, by
affording a broad base, while at the same
time allowing space for a receptacle to be
placed under the grater to catch the grated 90
material.
I claim:
The combination of a grater frame to-
gether with feeder block and holding block
with lugs sliding in vertical grooves in 95
grater frame, forming the feeding mecha-
nism: with a grater roller consisting of a
cylindrical grating surface mounted upon
a shaft and carried by the grater frame,
with a crank and handle attached.
WILLIAM McKENDREE LAMBDIN.1,411,634,
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Lambdin, William McKendree. Universal Household Grater., patent, April 4, 1922; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1258287/m1/2/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.