Improvements in Metallic Facing Plates for Buildings and in the Process of Manufacturing same.
Year: 1892

page_text: Date of Application, 18th Oct., 1892-Accepted. 19th Nov., 1842
COMPLETE SPECIFICATION.
Improvements in Metallic Facing Plates for Buildings and in the
Process of Manufacturing same.
I, LONGLEY LEWIS SAGENDORPH, of the corner Hamilton and 23rd Streets
in the City and County of Philadelphia, State of Pennsylvania, United States of
America, Sheet Metal Manufacturer, 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, reference being had to the
accompanying drawing:-
My invention consists in the process hereinafter set forth for manufacturing
metallic facing-plates, and also in the product of said process, said facing-plates
being designed more especially as an improvement over that patented to me
March 24, 1891, No. 5224.
In the accompanying drawing :-
Figure 1, is a face view of a portion of a facing-plate embodying my invention,
in which the rectangular figures are shown reeded longitudinally; and,
Figure 2, is a similar view in which said figures are transversely reeded.
Figure 3, is an enlarged perspective view of a portion of the plate illustrated in
Figure 1.
Figure 4, is an enlarged sectional view taken on the dotted lines 4, 4, of Figs. 1
and 2.
Figure 5, is a sectional view of part of a plate in which the raised rectangular
figures are formed by a semi-circular groove instead of a braded-groove, as in the
preceding figures.
In pressing or stamping metallic facing-plates into raised rectangular figures, A,
having a flat surface, such as set forth in the Specification of my aforesaid
Patent, difficulty has been experienced in that the inequality of the longitudinal and
alternating cross-grooves will cause the metal to warp or buckle, the contraction of
the metal, caused by the formation of said grooves, not being equal from all sides of
the plate. To overcome and obviate this difficulty is the object of my present
invention.
My invention consists in first forming in the body of the plate, over its entire
surface, a series of slight corrugations or reeds a, which latter may extend in either
direction as illustrated in Figs. 1 and 2. After having reeded the plate as afore
described, the latter is placed between suitable dies, (not shown) which latter forms
therein the longitudinal braded-grooves B and the alternating transverse braded-
grooves C. These braded-grooves are formed in the manner set forth and claimed
in my aforesaid Specification, and as shown more clearly in Figs. 3 and 4, by
means of the grooves b at each side the brads B and C, the latter being convex with
the outer face of the plate. If desired, the reeded plate may be stamped with
approximately semi-circular longitudinal and alternating cross-grooves D (see
Fig. 5); in either case, the grooves b, or grooves D, are formed in the sheet much
deeper than are the reeds a, in order that the blocks or figures A may stand out
prominently, and also to assist in stiffening the plate.
In the process just described, the reeds a will take up any unequal contraction of
the metal between the longitudinal and alternating cross-grooves, and thus prevent
warping or buckling the figures formed thereby.
In addition to the advantage just mentioned, the small reeds tend to add strength
and rigidity to the plate, and present a pleasing appearance, the plates thus
formed being susceptible of an artistic finish, by the use of properly colored
paints.
In joining two plates of siding reeded in the manner set forth, the concave

page_text: portion of the reeds on our plate will fit over the convex face of the reeds on the
underlying plate, thus forming a neat and approximately invisible seam.
In addition to the mechanical features of advantage derived from the use of my
improved process and the plates produced thereby, said plates have an artistic
value, the same being in imitation of brick or stonework, when applied to a
building..
-
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
(1) A metallic plate having a series of raised rectangular figures thereon, the face
of each figure being reeded, substantially as set forth.
(2) A metallic plate having its surface reeded, with longitudinal and alternating
transverse grooves formed in said reeded plate, substantially as set forth.
(3) A metallic plate having its entire face reeded, with longitudinal and
alternating transverse grooves formed therein, said grooves being of a depth
greater than said reeds, substantially as set forth.
(4) The process herein set forth for manufacturing metallic facing-plates, the
same consisting of first reeding the surface of the plate and afterward forming
therein the longitudinal and alternating transverse grooves, as and for the purposes
set forth.
Dated this 16th day of September 1892.
LONGLEY LEWIS SAGENDORPH.