1. No category

l ,58 7,9 73
June 8 , 1926.
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INVENTOR.
@101712 E Makawó‘lcá
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ATTORNEY
1,587,973
Panarea June 8,1926.
UNITED ‘STATESv PATENT `¿orme-1a.' i JOHN I'. IAXOWÈSXI, Ol' STOCKTON, CALIFORNIA, ASSIGNOBT'I‘O CALIFORNIA CEDAR
PRODUCTS COMPANY, OF STOCKTON, CALIFORNIA.
'rnasfran Ln'rn.
application mea nay as; 192s. serial np. 641:985.
This invention relates to the building art sets I mold or form-the outer face thereof
and particularly-to wall construëtionf" _
y so as to produce dove-tailed or similar
I have conceived' as the 'present invention 'shaped grooves 3 extending thereacross, or a
.a composition lathing mounted upona suit similar formation having lfront and rear
able supporting surface, there belng mould faces, with intervening ope'nings- or inter
ed into thet’face of the composition a dove stices into which the- plastic material to be
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tail or other suitable shaped 'key structure. applied t0 the lath may ñow and" be locked
Plaster or stucco lath now commonly used
_as a substitute for wooden lath is too ex- l
thereto.
.
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'
As .will be readily seen the composition
pensive both in first cost and in the methodl may be. a‘ very cheap product compared to
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' of application ?for ordinary use, and there wood. The mechanical keyl structure for
can be no big demand therefor until a good the plastic material, moulded permanently
lath which can successfully ~compete with in the composition, forms aperfect locking
structure to hold the plastic, which func
wooden lath, is produced. _
'
is augmented bythe _fact that the ele so
The main object rof the invention there tion
ments
of the composition'will be such as
foreis to produce a cheap but durable com
V position lath on which the plaster,.cem"ent form a natural bond..for the Íplastic sur
or other plastic may be readily spread and >facing material.
.
bonded thereon.
Having thus describedmy Iinvention what
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_ 1 accomplish Athe "objects óf the invention -I- claim asïnew and useful and desire to se
cure by Letters Patent isz'
' by theuse of the com osition andystructural
K
molding thereof as
after.
‘
ully set forth herein'- ,
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compositlon plaster
lath containing
_
_
y calcined gy sum,'case1n as a water prootin g
element an jan adhesive element.
The'íivgure on the drawing i`s` a perspec
`
" tive view of a fragmentary portion of' 'a _426A composition plaster lath containing
" calcined gypsuJnncasein as a water proofing
sheet’of my improved lath. .
`
,
In carrying out the 4invention I ‘make up element and dextrin._ v ‘
i , a composition preferably of.- casting plaster - 3. A composition plaster lath consisting
such las calcined gypsum, skimmed milkor .of calcined gypsum, casein as a water proof
casein as a' water proofing element, mixed ing element, sawdust and an, adhesive ele
with dextrin 4or other adhesive, with or
v\_1ithoutA a certain percentage of sawdust In testimony whereof' I aiiix my signa
ment.
' meal. This composition, is 's _read to a thick
\ness of
ì
_
on--a suitable
about
half an inc
85
-supporting paper or board 2, and before it
ture.
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7, " JOHN
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MALKOWSKT.`
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