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Патент USA US2407739

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Sept. 17, 1946.
Filed June 24, 1944
4 Sheets-Sheet 1
MW; Q. 51M“ '
5% @uwzw?mm '
Filed June '24, 1944
4 Sheets-Sheet 2
020% a, wee
Sept. 17, 1946.
|_. A. FALCO
'Filed June 24,1944
,3a 440 gal?
4 Sheets-Sheet 3
411' 40
Sept. 17, 1946.
1.‘. A.’ FALco
Filed June 24. 41944
—————— —~
- ié
4 Sheets-Sheet 4
Patented Sept. 17, 1946
' Louis A. Falco, New Haven, Conn., assignor to The
“ Dextone‘Company, New Haven, Conn., a cor
,vporation‘of Connecticut
a i
e224, 1944, s ‘ a ‘ “$541,857
we a further ‘mom; i
n‘ith “ athtub‘ selected for illustration,‘ the tub
is offal‘type‘i‘especiallyt‘adapted for‘use in inex
pensive ‘dwellings and apartments where the tub
‘1s‘31pr‘ovided with a‘dra‘i'nii‘n the bottom it and with
‘ 'anA over?ow bp‘ening at one “end,‘but where the
‘ supjmy 16f coldrand ‘hot‘waterrto the tub‘is ex
traneou‘s, fthat is‘to say, where the ‘faucets ‘are
above “the? tub,{ suitably ‘supported’ on the‘ wall ‘of
-the‘ ham. “The ‘tub illustrated is also of_ the type
‘ ‘ hi‘?
‘ichthetub ‘isfreoeivedjin‘a niche‘or‘recess‘ in
me‘mbmpwhich nichepr recess ‘is of a shape‘ to
receiveWhe‘tub‘ and tolleav‘e‘ only one‘ sidewall
61' the latter exposed» At “the last-mentioned side
of thetub it is‘pr‘efer‘r‘ed to employ a separate
apron or covering member whichextends from
i‘ 1‘
‘ ‘suchfas Weldsfbet‘we
M ‘
the ?oor‘ to the “rim which isprovided ‘upon the
‘ he metal
erreeti'veiy1p¢ncea1§qmswei1 "as “ft
tub structure.“ ‘The tubes of‘ rectangular shape
“a'r‘ichoring‘the backing‘ to the metal portion,‘ ‘with
having a relatively ‘wide ‘rim ‘ extending ‘along ‘
all‘four ‘sides, thelrim ‘at three‘sides abutting the
" 'iéw tq‘the enhancement “of theappearance 35 room wall. The tub body‘ or receptacleportion
‘he‘?nishéd pm‘qum ‘
has upwardly‘diverging inner side surfaces‘along
To these and otherends theinvention‘ consists
the‘wallsiof greater length, and it also ‘has up
inwthe‘novelrfeatures and combinations of parts
War'dlyniverging inner side surfaces‘ along‘the
and ‘procedure to3 ‘beplhereinafter {de ‘?ned-‘and V shorter walls, in other wordathe end ‘walls. The
?nally PQiIltGQ pl‘ltj‘inthe‘cla‘im‘
f 40 tub‘ is dfvcoinposite‘formatlon, having the outer
n the ‘accompanying drawi __g “
‘ "1
pective‘lview f0 ‘a athtub ‘enryinfg‘ mYI‘imPIOYQmBIitS'
l ‘ ‘
_g1‘."q2;i altopplajn‘jview ‘ofj thei‘tub;
g; islairont elevation;
‘visible portions constructed of thin sheet steel
which is covered ‘with a “suitable coating such
as ‘baked ‘enamelgan‘d this also‘ includes the sep
‘ p
‘ ‘ f
‘ arate apron previously mentioned. These metal
45 lie portions are backed up and‘ reinforced by
1‘ ‘Fig; 4 is ‘an end ele‘vation‘looking toward that
a backing layer of suitable cementitious material
end‘_‘which is at the right of Fig. l:
ruch as concrete, which is applied to the metal
8 1s
'7 15
8 1s
a section on line 5-5 of Fig. 2;
wall and secured thereto in a manner which
1 section on line 6~—6 of Fig. 5;
will, be described hereinafter.
a section on line l-‘l of Fig. 6;
In constructing a tub the procedure is to con
a side elevation, partly broken away,
struct the metal portion of the tub proper in sec
of the channel member of thin Vmetal used in
the imanufacture of the tub;_
F1?" 9 ,15 abottom plan ‘new of the channel
tions of thin-gauge metal such as steel having a
suitable baked-on enamel on those portions of
the metal platewhichwill hp exnnserl tn View in
said end sections’beingiset in saidlchanneled sec:
tion and welded thereto, the cementitious‘ backi
the dotted line 64-, and s'imilarlyxthe section ‘63
is integral with the ‘main section ‘in'sa location
indicated by the dotted line 65-. It is understood,
of course,,that.the rim portions of the sections
zin'g 'beinganchored' tothe metallic lining bynan
.choring members‘ having. portions of extended
area applied to the ‘surface of the metallic lining
are. at a later stage, rounded. over in the manner
by an adhesive cementand arranged in. staggered
previously described. Where the adjacent edges
‘of the sections are separate from each other, they
as by Welding after the blank has been formed
to final shape.
, ‘2. A composite bathtub structure of generally
may :be fastened-together in a suitable manner
elongated shape provided with a mainreceptacle
10 portion" and with an _ outstanding =rim portion,
said structure having in the receptacle portion,
It will be evident from the foregoing, descrip
and also in the rim portion a thin metalliolining
or‘ facing and a backinglayer tofecementitious
tion that the invention provides a bathtub. which
is._quite inexpensive in comparison tic/bathtubs
material, the metallic lining comprising'annain
,atxpresent in use, and which is of relatively light
weight so as to be easily transported and readily 15 section of channeled shape providinga mainror
body portion having upwardly sloping‘ sidesf'and
installed. The metal lining is of such thinness
that, it can be provided at low cost and can be ' also comprising upwardly sloping; end- sections,
the end sections being provided on theirbodylpor
‘easily and inexpensively fabricated, and the ce
tionsland also on their rim portions with-bent
mentitious backing or reinforcement imparts to
‘the structure the necessary strength, with ample 2.0 up ?anges at their ends, said end sections being
set in said channeled sectionand having their
'margin, without addingfgre'atly to the weight.
?anges welded to said. channeled section, .therim
The reinforcement also provides a monolithic
portions of the lining in said channeled section
structure in which there will be no problem of
and in said endsections being 'provided'with
leakage at the joints provided between'the sec
tions of the metal lining. The composite wall 25 downturned outer marginal ,?anges and being
open "at their under portions, the backing-being
asrdescribed, especially ‘in view of the reinforce
disposed at said under portions ,iniaa relatively
iment' provided by the anchoring members on the
thick- mass, and the-backing. extendi‘ng‘over. the
metal lining, embedded in the concrete, provides
body portion of the tub‘being' ofzléss'thickness.
a very strong rigid wall. 'From the standpoint
3. In a bathtub structure, the combination of a
of appearance also, the improved tub is eminently
bathtub body'having atone side off'the tub an
satisfactory by‘ reason. of the fact that the sur
upwardly sloping wall and a 'lateral'lyiextending
faces visible at thelexterior are all of’ baked ena_
upper rim, said wall and. rim comprising'a thin
fuel; or ?nished in some other suitable manner,
metallic lining or facing anda backingrlayer'iof
and by reason of thefact that a smooth inner
tub surface can readily be‘ provided, and also the
cementitious material applied thereto, the. lining
and backing being‘formed to present a relatively
deep rim havinga thick ‘body of cementitious
material anchored by anchoring devices‘ to the‘
metallic portion of the rim, and the sidewall
portion having a backingof less thickness than
the rimv backing, which backing is likewiseian
chored to the lining by anchoring. devices, and
fact that the tub can have a substantial rim
and a substantial apron of attractive appearance.
In the foregoing description, ‘the backing is
referred to as composed of concrete, but the
backing may, if desired, be formed of aggregate
bound by a binder Which is not an hydraulic
cement but, for example, of an asphaltic nature
or,‘ for example‘, of a resinous nature. The draw
ingsr do3: not show the metal'lining as having a
layer of ‘baked-on ‘enamel, but it is understood
an apron set in under‘ the rim and-having at the
exposed side’of the tub structure a metallic lining
or facing and having a cementitious body ‘backing
up said facing andanchored thereto bygan'chor
that‘ such a layer is provided in a tub of a cer
tain class, the enamel in the cheaper tubs being
of what may be termed synthetic porcelain. In
a more expensive tub, a porcelain coating, that
is to say an earthenware coating, can be provided. .50
In ‘some cases, the lining may be made of: stain
less steel, and in such a‘ case, no coating layer
is necessary. The article shown in the drawings
ing devices, ‘said cementitious body being provid
ed withv a relatively wide bottom flange serving as
a base support for-(the apron on the ‘floor. and
abuttingrthe side wall of the tub,‘ and said body
havingwan inwardlyiextending top flange ‘of less
width than- the bottom flange, the inner edge‘ of
the‘ top ?ange abutting ‘the wall of the tub body
immediately below and-under the‘l'im, so, a_s;5t-o
is used for bathing purposes, but it will be appar
ent that the invention is applicable to tublike 55 position the upperpartof the apron with respect
to the tubbody.
structures such as ‘sinks, laundry'tubs, basins,
4. In a composite bathtub structure, the com
and other articles.
bination of a lining member of'thi‘n sheet metal,
‘While the foregoing description goes into the
_a metallic clip having an integral foot‘appliedat
various ‘details of the structure shown for pur
poses of illustration, it is to be understood that 60 its under portion by adhesive cement to the'slir:
face of the lining member, said ‘clip having‘ a
the invention is capable of various other embodi
shank rising from the, foot'at one side of the ‘foot
ments within the principles of the invention and
andbent over at a sharp angle to form a hook
the scope of the claims.
’ ~
facing toward the lining member at that sideof
l. A composite bathtub structure of generally 65 the clip whichis' opposite the foot, and a cemen§
titious layer applied over the lining meinberi and
elongated shape provided with a main receptacle
anchored thereto'by the'clip', the-depth! ofJsa'i'd
portion and with an outstanding rim portion, said
cementitious layer approximating‘ the {depth ‘of
tub having in the receptacle portion and also in
the'rim portion a thin metalliclining and a back
ingllayer of cementitious material anchored there
to, the metallic lining comprising a number of
sections joined together at their adjacent edges,
said sections including a main section of chan
neledshape providing the main or body portion
01? the tub and-upwardlrslgrins end sections.
i 5. A composite
;. I
l bathtub
I: .». ' . structurex ofp generally
elongated shape provided with :.a;,main .ireceptacle
portion; and jwithz an outstanding ir'imaportioni,
said structurerhavinggin the receptacleriportion
and also-rim the rim portion-a ‘thin metallic lin=
75 in‘g oryfacing’and azbacking layer. of cementitious
material, the metallic lining comprising a main
section of channeled shape providing a main or
body portion having upwardly sloping sides and
also comprising upwardly sloping end sections,
the end sections being provided on their body
portions and also on their rim portions with bent
up ?anges at their ends, said end sections being
set in said channeled section and having their
rial, the metallic lining comprising a main sec
tion of channeled shape providing a main or body
portion having upwardly sloping sides and also
comprising upwardly sloping end sections, the
end sections being provided on their body por
tions and also on their rim portions with bent
up ?anges at their ends, said end sections being
set in said channeled section and having their
_ ?anges welded to said channeled section, the rim
?anges Welded to said channeled section, the rim
portions of the lining in said channeled section 10 portions of the lining in said channeled section
and in said end sections being provided with
and in said end sections being provided with
downturned outer marginal ?anges and being
downturned outer marginal ?anges and being
open at their under portions, the backing being
open at their under portions and having their un
disposed at said under portions and extended
der portions covered by the backing layer, the rim
therefrom over the body portion of the tub.
15 portions of the main section being extended lon
6. A composite bathtub structure of generally
gitudinally beyond the body portion of said sec
elongated shape provided with a main receptacle
tion, and the rim portions of the end sections
portion and with an outstanding rim portion, said
being set in between the extended rim portions
structure having in the receptacle portion and
of the main section.
also in the rim portion a thin metallic lining or 20
‘facing and a backing layer of cementitious mate
Patented Sept. 17, 1946
Gaspare Ferrante, Brooklyn, N. Y., assignor to
Grasoph Building Corp., Brooklyn, N. Y., a cor
poration of New York
No Drawing. Application December 2, 1943,
Serial No. 512,599
1 Claim. ( Cl. 106-98)
1 .
This invention relates to new and. useful im
provements in a plastic cementitious material,
and has more particular reference to so-called in
terior wall plaster.
Still further the invention proposes an 1111-,
proved plaster and plaster board which may be
manufactured and sold at a reasonable cost and
which contains nothing of an injurious or dele
It is an object of this invention to produce a 5 terious nature.
wall plaster (interior) which is far superior than
present day similar plaster.
The invention contemplates the use of brick
dust incorporated within the plaster to obtain
For further comprehension of this invention,
and of the objects and advantages thereof, ref-V
erence will be had to the following description,
and to the appended claims in which the vari
certain advantages. Bricks have been proven to 10 ous novel features of the invention are more
particularly set forth.
In order to enable others to better understand
this invention speci?c formulas will now be given
for a plaster and plaster board embodying the
15 essential features thereof.
To better understand the invention it must
Example I
be recognized that Portland cement, and other
cementitious substances are not practical as bases
Formula for an interior wall plaster.
for interior plaster because of their lack of plas
plaster base (interior)
ticity, or spreading qualities under the mechan 20
lbs__ 100 (71-%%)
ic’s tool, as well as the lack of adhesion. How
Finishing lime (hydrated lime)
ever, such materials have been made adaptable
lbs.._ 10 (OW/7%)
for these uses by the addition of ?nishing lime
Brick dust ________________ __lbs__ 20 (14%%)
(hydrated lime) used in various proportions as
Sand and marble dust ______ __lbs__ 10 (07%%)
the plaster ‘ingredients are being mixed.
be an excellent material for outside walls. Brick
dust embodies many of the advantageous fea
tures of brick material, yet, as far as I know, it
has never been used for interior wall construc
It is general practice to use a plaster base mix
Water ____ -r _____________ __ga1s__
ture with ?nishing lime, sand, and similar ma
The brick dust which I have used with good
terials in the construction of interior wall plas
results was obtained from the nearby New Jersey
ter. I have discovered by using brick dust, a
brick factories. This brick dust I ‘call “Jersey
far superior plaster is obtained. I have discov
30 brick dust." The ingredients are mixed together
ered that this plaster material may be used to
in the usual way used for the making of plaster.
construct plaster board as well. The improved
It will be found that the plaster has good spread
interior plaster and plaster board have especially
ing and adhesive qualities.
good ?reproof and waterproof qualities-they are
Example II
sturdy and strong; they have low heat conduc 35
tivity and act as good heat insulation material.
Thefollowing formulae may be used for rock
The improved plaster and plaster board does not
lath or plaster boards.
readily crack, crumble nor break under ordinary
Finishing lime (hydrated lime)
conditions of service. It is particularly well
lbs-; 60
adapted to receive coats of paint and covering 40
Cement plaster base _______ __lbs__ 100
I am aware of the fact that brick dust has been
used in connection with concrete to construct ar
ti?cial bricks. I am also aware that brick dust
has been used as a coloring material for plastic
materials from which various articles are molded.
However, the advantages gained by using brick
dust in an interior plaster or plaster board has
never been discovered before.
It is another object of this invention to use
the largest percentage possible of brick dust in a
plaster or plaster board, commensurate with the
production of a good interior plaster and plaster
I believe that an interior plaster is generally
characterized by the use of hydrated lime, and
the dominating feature of my invention is the
use of brick dust with such plaster.
The improved plaster, in accordance with this
invention, may be used for all purposes for which
interior plasters ‘are now being used.
Sawdust _________________ __lbs__
25 s (12 1/z%)
Brick dust _______________ __lbs__
Water __________________ __gals__
('7 1/g %)
The plaster boards are made by mixing the
materials and working them in the usual ways.
While I have described the preferred embodi
ments of my invention, it is to be understood that
I do not limit myself to the precise formulas
herein‘ disclosed, and the right is reserved to all
changes and modi?cations coming within the
scope of the invention as defined in the append;
ed claim.
Having thus described my invention, what I
claim as new and desire to secure by United
States Letters Patent is:
An interior wall plaster, consisting of, a mix
ture of a Portland cement base, 100 lbs.; hydrated
lime, 10 lbs. ; brick dust, 20 lbs. ; sand and marble
dust, 10 lbs.; and water, 10 to 15 gals.
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