Pattern and Match Plate Page: 2 of 4
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UNITED STATESPATENT OFFICE.
PHILIP VOIGT AND CHRISTIAN KORNMAYER, OF HOUSTON, TEXAS.
PATTERN AND MATCH PLATE.Specification of letters Patent.
Patented Aug. 2, 1910.
Application filed July .10, 1F09. Serial No. 506,871.
To all whom it may concern:
Be it known that we, PHILIP VOIGT and
CHRISTIAN KORNMAYER, citizens of the
United States, residing at Houston, in the
5 county -of Harris -and State of Texas, have
invented certain new and useful Improve-
ments in Patternand Match Plates, of which
the following is a specification.
Our invention relates to new and useful
10 improvements in match boards to be used in
the process of casting.
The -object -of the invention is to provide
a match board of the character described
upon which a plurality of segmental pat-
15 terns may be secured in the manner and for
the purpose hereinafter described.
The device is used particularly in the
process of casting segments for car wheel
chills. These segments, at present, are usu-
20 ally cast separately and by reason of their
beveled edge, as will be shown more accu-
rately hereinafter, skilled and costly labor
is required in withdrawing the patterns
from -the sand, preparatory to making the
25 chill castings and the cost of production
thus augmented.
By the use of our -match board, unskilled'
labor may be employed and the cost thus de-
creased and it is to be further noticed that
30 as 'by the method now in common use, only
one -pattern is withdrawn at a time and by
the use of our match board several may be
withdrawn together, the rapidity of produc-
tion of the castings is increased. It has
35 been demonstrated that by the use of our
'method the production may be easily tripled
in quantity and the cost, at the same time,
be greatly reduced.
Another meritorious feature of our device.
40 resides in the method of securing the pat-
terns to-the board whereby the usual warp-
ing of the patterns is obviated.
With the above and other objects .in view
-our invention has particular relation to cer-
45 tain novel features of construction, use and
arrangement of parts an example of which
is given in this specification and illustrated
in the drawings, -wherein:-
Figure 1 is an end view of the match
50 board with the patterns attached. Fig. 2
is a 'bottom plan view of the match board
with the segment patterns secured thereto.
Fig. 3 is a top plan view of said board.
Fig. -4 is an end elevation of said board in
55 -position in a flask set. Fig. 5 is a bottom
--edge view of a segment casting.Referring now more particularly to the
drawings, wherein like numerals of refer-
ence designate similar -parts in each :of the
figures, the numeral 1 refers to the flat mar- so
ginal portion of the board entirely surround-
ing the raised central portion 2 which pro-
jects above the marginal portion and is hol-
lowed out beneath as indicated by the dotted
lines in Fig. 1. The elevated portion 2 is 65
flat on top, or in other words has a flattened
apex, and its sides 2' and 2" slope each way
from the longitudinal line of the apex to
the flat marginal sides. It is to be observed
that the entire match board is of a uniform 70
thickness throughout, the planes of the cor-
responding portions of the upper and under
sides thereof being parallel. A match board
is thus formed with a flat supporting margin
and a central raised portion with uniform 75
sloping sides upon which the patterns P
and P may be secured.
The segments of the chills to be cast will
be exact duplicates of the patterns as is ob-
vious, and in practice, about ninety of the 80
segmental castings are placed side by side
and as the.inner side, indicated by the letter
a is thinner than the outer portion at b and
as the corresponding portions of each cast-
ing are equal in thickness to each other, 85
when a sufficient number of the segmental
castings are placed side by side they will
form a complete circle, or mold within which
the outer or chilled portion of the car wheel
may be cast. It is obvious that the mold 90
thus formed will not be in an exact circle
but rather will be a polygon of as many
sides as there are casting segments, thus
making it necessary to mill the outer sur-
face of the car wheel chill to a smooth circu- 95
lar surface. In placing these castings in
the form of a mold, as described above, that
portion represented by the letter c, Fig. 2, is
the bottom and d the top of the mold. It is
further desirable that the side e, Fig. 5, be 100
depressed, slightly, except around the mar-
gin thereof so that it will fit up closely
against the side of the adjacent casting and
form a perfect joint. This depression in the
casting is provided for by carving out a 105
similar intaglio depression f in the side of
the match board complementary to the place
where the segmental pattern of the casting in
which the impression is desired, is placed.
Semi-cylindrical depressions g and h are 110
also provided in the upper side of the match
board as similar shaped depressions are de-965,968.
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Voight, Philip & Kornmayer, Christian. Pattern and Match Plate, patent, August 2, 1910; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513700/m1/2/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.