Improvements in Metallic Lathing.
Year: 1891

page_text: COMPLETE SPECIFICATION.
[Communicated from abroad by ALFRED MOSELY, of Mount Florence, Hart
Park, Richmond County, West New Brighton, Staten Island, State of New
York, United States of America, Builder.]
Improvements in Metallic Lathing.
1, HENRY HARRIS LAKE of the firm of Haseltine Lake & Co., Patent Agents
45 Southampton Buildings in the County of Middlesex do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:--
This invention consists of a metallic lathing formed from sheet metal by slitting
or cutting through the sheet at intervals, in lines of certain shape and length, and
then expanding the sheet opening the cuts and thereby producing from a sheet of
given width and length an expance of surface to receive plaster-greater than that
of the sheet before the enlargement the sheet when fully expanded presenting a
series of slats or bars united by ties integral therewith, and between the same
apertures adapted to receive plaster and admit of a proper and secure holding of
the same to the lathing.
It further consists in forming the cuts with their edges turned outwardly to aid
in the securing of plaster to the lathing.
It further consists in forming all angles or bends of the cuts with an outward
turn to enable them to serve as hooks or barbs as a further means of securing plaster
to the lathing.
All as hereinafter more fully described reference being had to the accompanying
drawing in which―
Figure 1 is a face view of a piece of sheet metal cut through or slitted at intervals,
illustrating the outline of incissions begining the manufacture of this lathing.
Figure 2 is a face view of the same piece of sheet metal after it has been
expanded cuts opened and apertures formed ready to receive plaster-it now appears
as a series of slats or bars held together by ties integral therewith-points of the
metal formed by the zigzag line of the cuts are shown as turned outward to
constitute hooks or barbs to become embedded in the plaster and aid in securing
the same.
Figure 3 is a sectional view across the bars and cuts to show edges of the cuts
turned outwardly in cutting before expansion.
Figure 4 is a sectional view showing the same bars expanded.
Figure 5 is a sectional view across the bar showing one of the angular points
turned outway and curved over backwardly from the opening.
Figure 6 shows the lathing as made with dies which on entering cut the incissions
outlined in Fig. 1, and entering further turn outwardly the angular points-the
sheet not yet expanded but in condition thereof-a cross section of the bars is shown
at the left.
Figure 7 shows two pieces of the lathing expanded and joined this view illustrates
how the bars act in the expansion process one going to the right and the next to the
eft and so on alternately throughout increasing the surface in lengthwise direction
while it is being increased widthwise.
Figure 8, 9 and 10, show modifications in the outline of the incissions (shown by
lotted lines) effecting the same results.
On the drawing A, indicates the piece or sheet of sheet metal-which may be of
ny length or breadth desirable.
B, indicates the cuts or slits-each cut is a combination of straight lines and
ngles as in Fig. 1, or it may be curved as in Fig. 9, they are arranged in lengths

page_text: at intervals leaving strips C, of the metal between as ties serving to hold the bars
connected when finished.
D, indicates the bars or slats formed in drawing apart the metal in the expanding
process and left as in Fig. 2, with apertures E, between.
By expanding the sheets of Figs. 1, 6, 8, 9 and 10, the opening are widened and
the sheet forms into series of bars held together by ties C, a sheet of lathing may
be then considered complete, plaster being securely held thereto by the opening
into which it will "set" and key itself to the lathing.
To further facilitate the union of plaster to the lathing 1, in the process of cutting
the slits turn outwardly the edges of the cuts as shown in Figs. 3, and 4, before
expansion projecting the bend either front or back as desired, such edges serve to
stiffen the lathing and are readily formed by the dies as it enters.
I also for still further affording grip for plaster, turn outwardly all the angular
points produced by the direction and form of the cuts or slits as shown in Figs. 2, 5,
6, 8, 9 and 10, such points may be curved over backwardly from the edge as shown
sectionally in Fig. 5-at F, or to stand outwardly at any desired angle to the sheet.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent I declare that what I claim is:
First An expanded metallic lathing consisting of series of bars or slats held
together by ties integral therewith essentially as herein set forth.
Second An expanded metallic lathing consisting of series of bars or slats held
together by ties integral therewith and having edges turned outwardly essentially
as herein set forth.
Third An expanded metallic lathing consisting of series of bars or slats of a
zigzag or serrated outline held together by ties integral therewith essentially as
herein set forth.
Fourth An expanded metallic lathing consisting of series of bars or slats of a
zigzag or serrated outline held together by ties integral therewith, and having their
edges turned outwardly essentially as herein set forth.
Fifth An expanded metallic lathing consisting of series of bars or slats of a
zigzag or serrated outline held together by ties integral therewith and having
between the ties the external angles of the serrated outline edge turned outwardly
and backwardly essentially as herein set forth.
Sixth An expanded metallic lathing consisting of series of bars or slats of a
zigzag or serrated outline held together by ties integral therewith, the bars having
their edges turned outwardly and the external angles or points between the ties
also turned outwardly essentially as herein set forth.
Dated this 26th day of May 1901
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for th Applicant.