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Патент USA US2020908

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Nov. '12, 1935. _
c. H. SCAMMELL
'MET-AL
LATH '
I
Filed Jan. 16, 1955
2,020,908‘
Patented ‘Nov. 12, 1935
2,020,908
UNITED STATES PATENT OFFICE
2,020,908
METAL LATH
Charles H. ,Scammell, Forest Hills, N.‘ Y., assignor
to Charles H. Scammell Company, New York,
N. Y., a corporation of New York
Application January 16, 1935, Serial No. 1,993
5 Claims.
(Cl. 72-116)
This invention relates particularly to metal lath
of that type in which sheets of expanded or perfo
rated metal or wire netting carry a backing sheet
against which plaster or other plastic material
5 may be molded and the desired clench of the
plaster secure d with a comparatively small
amount of plas ter. The invention includes, also,
constructions in which backing sheets are used
on both sides of metallic lathing for shielding
or other purposes. Such metal lath in different
forms forms the subject matter of my Patents
Nos. 1,210,849, 1,499,408, and 1,569,144.
The object of the invention is to provide an
improved metal lath in which the metallic lathing
15 shall be provided on one or both sides with a
transparent and water-proof sheet, so that no
additional layer of water-proof material is ie—
quired and the lathing may be quickly and con
veniently positioned in use, the studs or other
members to which the lath is to be attached being
visible through the transparent sheet or sheets,
50 that no marker on the lath is required.
25
Transparent and-water-proof materials of dif~
ferent types may be used, but preferably a ?exi
ble, transparent, and water-proof sheet of cel
lulose material will be used, and I have found
that the material known in the trade as “Cello
phane” is well adapted for such use, this material
having the above qualities, and in addition the
quality of not breaking up or cracking on driving
nails or staples through the lath for securing it
in position.
For a full understanding of the invention, a
description of a construction embodying the in
~vention in a preferred form, as applied in a lath
for holding plaster, will now be given in connec
tion with the accompanying drawing, and the
adhesive 2, which may be asphalt composition,
and conveniently applied by running the metallic
lathing over a, roller carrying the adhesive.
Other means for securing the backing sheet to the
lathing may be used.
5
As shown in the drawing, the studs are visible
through the, backing sheet, so that no marker
is necessary, and the lath may readily and con
veniently be secured in position simply by laying
the sheets of lath over the studs and stapling the 10
lath to the studs, after which the plaster or other
plastic material is applied.
If the invention be applied in connection with
sheathing having backing sheets on both sides of
the metallic member, the construction is the same 15
and may be secured in position in the same way
by attaching means passing through both sheets
of lath. In such sheathing lath, the metallic
member will not be used to hold plastic composi
tion, but the inner side of the sheathing may be 20
treated in any desired manner.
It will be understood that the lath may be used
in connection with widely different building con
structions and attached to either wood or metal
supports, the transparency of the lath making it 25
excellently adapted for use in connection with
metal work, on which attaching members are lia
ble to be irregularly spaced, rendering it difficult.
to properly apply and position non-transparent
lath.
30
What is claimed is:
1. A new article of manufacture comprising
metallic lathing having secured thereto‘a back
ing of transparent and water-proof material. ,
2. A new article of manufacture comprising 35
metallic lathing formed to anchor plastic mate
invention then speci?cally pointed out in the rial between it and a plane surface in contact
with such lathing, and a backing sheet of trans
claims.
40
' parent and water-proof material secured to said
In the drawing:
lathing.
40
Figure 1 is a face View of a portion of the
, backed‘ lath applied to studs or similar furring in
a wall construction; and
45
V
Figure 2 is a section on the line 2 of Figure 1.
Referring to the drawing, the studs iii are se
cured in position in the usual way with respect
to a joist H, and the floor (not shown). rI‘he
metal lath consists of the expanded metal or
other open mesh metallic lathing l2, and the
50 transparent and water-proof backing sheet !3,
which are shown as secured to the studs by staples
I, although it will be understood that any other
suitable securing means may be used. The-lath
ing is covered with the body of plaster or con
crete mixture l 4, this being broken away to illus
trate the lath construction. The backing sheet
I3 is shown as secured to the metallic lathing by
3. A new article of manufacture comprising
metallic lathing formed to anchor plastic mate
rial between it and a plane surface in contact
With such lathing, and a backing sheet of trans
parent and water-proof material secured to said 45
lathing by adhesive.
4. A new article of ' manufacture comprising
metallic lathing having secured thereto a back
ing of transparent and water-proof cellulose ma
terial, such as “Cellophane”.
50
5. A new article of manufacture comprising
metallic lathing formed to anchor plastic mate
rial between it and a plane surface in contact
with such lathing and a ?exible, transparent and
water-proof backing sheet of cellulose material, 55
such as “Cellophane”, secured to said lathing.
CHARLESH. SCAMMELL.
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