close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2071239

код для вставки
Feb. 16, 1937.
>
w. H. SPENCER ET AL '
'
2,071,239
SIGN PLATE AND OTHER ORNAMENTAL PANEL
'7
Filed March 15, 1955
INVENTORS
WILLIAM 'H. SPENCER
LESLIE R. BIRDS/ILL
WILLIAM BAHLER
'
2,071,239
Patented Feb. 16, 1937
UNITED STATES PATENT OFFICE
'
2,071,239
SIGN PLATE AND OTHER ORNAMENTAL
PANEL
William H. Spencer, New York, Leslie R. Birdsall, ,
Long Island City, and William Bahler, New
York, N. Y., assignors to The Frink Corpora
tion, Long Island City, N. Y., a corporation of
Delaware
Application March 15, 1935, Serial No. 11,222
7 Claims. (Cl. 40—136)
This invention relates more especially to signs
constructed of plate glass or other suitable
transparent or translucent material whereby
novel lightv effects as well as contrasts in the
characteristic appearance of a legend or design
with respect to its background, may be produced
in ornamental panels or signs.
_
The primary purpose of our invention is to
provide‘ plate‘ glass signs of'improved construc
10
tion and for this purpose, our invention contem
plates more especially a re?nement and exten
sion of the method shown and described in
U. S. Patent No. 1,525,107 which was granted in
the name of W. H. Spencer under date of Feb
lens-like bodies of glass which stand out in bold
relief from a background of contrasting non
luminous character and in which the basal out
lines of the luminous side walls of the lens-like
bodies are sharply de?ned from said background.
In the drawing which illustrates an adaptation
of our invention to a plate or block of colored
?ashed glass, successive stages of the process are
represented by effects produced on a fragmen
tary portion of the plate glass as shown on‘ a 10
fragmentary transverse section on the line A-—B
of Figure 6.
Figure 1 is a fragmentary vertical section of
ruary 3, 1925, the purposeof the present inven
15
tion being to form protruding lens-like bodies of
the plate glass panel prior to the excavating oper
ation, said panel being provided with a ?ashed
layer of colored glass at the top.
translucent or transparent material which stand
out in strong relief with respect to a background
portions of the glass plate have been excavated
of contrasting character. According to the em
bodiment of our invention shown on the draw
20 ing, an excavating operation
(preferably per
formed by sand blast) is utilized to form a de
sign, letter or legend out of solid bodies of glass
which protrude in bold relief from a roughened
temporary surface left by the sand-blasting
25 operation. For this purpose, a resist sheet is
?rst applied to one surface of the panel and
after portions of said resist sheet have been cut
away around and exterior to portions of the
smooth polished surface of the plate glass which
30 are to form the top or forwardly-presented sur
faces of the design, letter or legend, the sand blast
is appliedto the outlying areas of the plate, glass
to form portions of relatively lesser thickness
which correspond to background areas for the
35 solid glass characters formed by other portions
of relatively greater thickness or degree of relief.
According to the above identi?ed Spencer Patent
No. 1,525,107, this step in the‘process was fol
lowed by an electroplating operation which cov
40 ered the beveled side wall surfaces of the relief
Figure 2 is a view similar to Figure 1 after
by sand blast over predetermined areas of one
face to form lens-like characters in relief with
concave bevelled side walls of roughened glass.
Figure 3 is a view similar to Figure 2 showing a
step in the process preliminary to the electroplat~
ing operation,
Figure 4 is a view similar to Figure 3 showing
the partly ?nished sign in readiness for the elec
troplating operation.
Figure 5 is a view similar to Figure 4 of the
completed sign plate.
Figure 6 is a face view of a portion of the
completed sign plate.
According to the preferred embodiment of our
invention shown on the drawing, a slab l of plate
glass is covered by an applied sheet 2 of resist
having an adhesive incorporated therein so that 35
when the initial blast of sand strikes thereon, a
protective layer of sand is formed for de?ecting
the sand blast from the resist during the con
tinued action of the sand blast. Assuming that
a plate glass sign having the appearance shown 40
in Figure 6 of the drawing, is to be produced,
characters as well as the roughened background portions of the resist sheet 2 are cut away around
and exterior to portions of the plate glass sur
from which the characters protruded. In con
sequence, the luminous and illuminating effects face which are to form the top smooth surfaces
in the beveled edges of the solid glass charac - of the letters shown in Figure 6. The prepared
slab is now ready for the sand-blast operation
45 ters due to their inherent properties of re?ec
which
is directed upon the slab in such a manner
tion, refraction and diffusion of light, could
not be utilized under the Spencer method which as to excavate portions 4, 4, of the plate glass
provided no means for establishing a clearly de
?ned border between the flat plated areas and
5 O the beveled non-plated areas. 'By painstaking
85
slab extending around and exterior to the ?nished
relief characters. As a. result of this sand-blast
50
experiments and investigation, we have found
that ornamental panels of the character re
ing operation, the plate glass slab is reduced to the
form shown in Figure 2 of the drawing, in which
protuberant bodies 5 of solid glass form-letters
ferred to, can‘be made highly distinctive in ap
pearance by forming letters or other designs of
cave side walls of roughened glass due to the 55
or other characters provided with bevelled con
2 .
2,071,239
etching operation. For the purpose of safeguard
ing the light-transmitting, light-reflecting and
light-diffusing properties of the translucent side
walls of the relief characters during subsequent
operations on the plate glass slab, the bevelled side
walls are temporarily covered by layers of suit
able composition such, for example, as a gelatine
and glue preparation which provides a protective
covering for the ground glass surfaces and pre
10 vents access thereto of the conductive coating so
lution employed for depositing a layer 8 of graph
ite, metallic paint or silver etc. on the background
areas in preparation for an electroplating opera
tion. As shown in Figures 3 and 4 of the draw
ing, the protective layers 6 terminate outwardly at
the bottom in alinement with a rectangular re
cess '! which sharply de?nes the basal outline of
the letter from the depressed roughened back
ground area upon which the conductive coating 8
is deposited. During the electroplating operation
a layer 9 of metal becomes deposited on the con
ductive layer 8, as indicated in Figure 5 of the
drawing. The ?nished plate glass sign comprises
an electroplated panel provided with protuberant
“ uncoated bodies of solid glass which form letters
or other characters in bold relief. Moreover,
these characters in relief are provided with
smooth flat top surfaces consisting of residual
portions of the original polished surface of the
plate glass, and roughened beveled side walls,
and by virtue of their inherent properties of re
ilection, refraction and diffusion, produce strik
ing ornamental effects in contrast to the metal
lic or opaque background from which they stand
out. Especially beautiful effects may be obtained
by means of a slab of plate glass embodying a
layer la of ?ashed glass of any desired color at
the top. Not only is the ?nished sign plate pro
duced by this method a thing of striking beauty
~10 but its construction is rendered permanent due
to the durable qualities of the substantially ?at
background consisting of an electroplated area
on a roughened surface and the solid glass lens
like bodies protruding therefrom. By an inspec
' tion of Figure 5 of the drawing, it will be seen
that the concave perimetral walls of the relief
characters are curved continuously from the ?at
surfaces of said characters and outwardly and
rearwardly therefrom into approximate parallel
ism with the common plane of said ?at surfaces,
the forwardly extending marginal portions of the
concavely bevelled roughened side walls being
approximately normal to said common plane at
the flat surfaces of the plate glass portions of
relatively greater thickness. Furthermore, the
basal outlines of the relief characters are sharply
de?ned from the electroplated background by
the shoulder ‘I against which the metal plate of
the background abuts. In consequence, with one
or more sources of light arranged in the rear of
a sign plate constructed as described above, and
in relation to a given superficial area of the
polished ?at surface of each letter, a relative
ly much enlarged light aperture is provided be
tween the spaced edges of the plates 9, 9, through
which the light rays strike the roughened con
cavely bevelled walls from within at progres
sively different angles from the basal margins of
the lens-like bodies of glass to the ?at surfaces at
70 the top. Due to the provision of co-ncavely bev
elled roughened side walls on a letter having a
flat polished surface, a two-tone lighting effect is
produced. Furthermore, the substantially con
tinuous curvature of the bevelled side walls from
75 a direction normal to the polished front surfaces
of the characters at said front surfaces into par
allelism with said surfaces at the base of said
bevelled side walls, produces variations in the
re?ection, refraction and diffusion of light rays
corresponding to the curvature of the side walls
which are rendered progressively brighter from
relatively small cross-sectional areas at the flat
faces to much broadened cross-sectional areas
framed within the opaque background.
We claim:—
10
1. An ornamental panel constructed of light
tra-nsmitting material and having portions of
relatively lesser uniform thickness and other por
tions of relatively greater uniform thickness pro
vided with concave perimetral walls having their
forwardly extending marginal portions approxi
mately normal to the front surfaces of said por
tions of greater thickness, said walls being curved
continuously and rearwardly into approximate
parallelism with said front surfaces in a common 20
plane spaced rearwardly from said front surfaces,
and an opaque background covering said por
tions of lesser thickness and having its forwardly
presented surface disposed substantially in said I
common plane.
L. Ll
2. A sign plate constructed of light-transmit
ting material and comprising portions of rela
tively greater and lesser uniform thickness, said
portions of relatively greater uniform thickness
forming characters in relief provided with con .30
cave side walls approximately normal to the
front surfaces of said characters in relief at the
forwardly-presented edges of said side walls, and
having their rearwardly-presented edges extend
ing outwardly into a common plane spaced rear- -‘
wardly from said front surfaces and approxi
mately parallel thereto, the forwardly-presented
surface of said portions of lesser thickness being
spaced rearwardly from said common plane and
de?ned with respect to the outwardly-presented ~10
edges of said concave side walls by rectangular
shoulders, and a layer of opaque material on the
outer surface of said portions of lesser thickness
and in abutment with said shoulders, said opaque
material forming a background area extending
outwardly from and on the same general level
as the outwardly-presented edges of said concave
side walls.
3. A light-transmitting sign plate having por
tions of relatively greater thickness presented '
forwardly from and surrounded by portions of
relatively lesser thickness to form characters in
relief, said characters in relief being enlarged
in cross-sectional area from top to bottom and
provided with light-diffusing side walls, and an
opaque layer covering the general surface of the
portions of relatively lesser thickness and termi
nating at the basal edges of said side walls to
define enlarged light-apertures in the front sur
face of said portions of lesser thickness for light GO
rays entering said relief characters from the rear '
surface of the sign plate.
4. A glass sign plate having portions presented
forwardly from a roughened background area to
form characters in relief, said characters in re
lief being provided with transparent top surfaces
and side walls of exposed roughened glass beveled
outwardly from and around said transparent top
surfaces to provide said relief characters with
enlarged cross-sectional areas at their bases, said
roughened background area being electroplated
around and between the bases of said characters
in relief to de?ne apertures for light entering
said characters from the rear of said sign plate.
5. A glass sign plate comprising portions pre
2,071,239
sented forwardly from a roughened opaque back
ground portion of relatively lesser thickness to
form characters in relief, said characters in
relief being provided with color-flashed top lay
ers and side walls of exposed roughened glass
beveled outwardly and downwardly from around
said color-?ashed top layers toward said opaque
background.
6. A glass sign plate comprising portions of
relatively greater and lesser thickness, said por
tions of greater thickness being shaped and ar
ranged to form characters in relief which are en
larged in cross-sectional area from top to bottom
3
7. A sign plate constructed of light-transmit—
ting material and comprising portions of rela—
tively greater and lesser uniform thickness, the
portions of relatively greater uniform thickness
being provided with polished transparent top sur
faces and roughened concavely beveled side walls
approximately normal to said top surfaces at the
top and approximately in parallelism therewith
at the bottom to form characters in relief, the
basal edges of said side walls being raised with 10
respect to the general surface of said portions of
lesser thickness and defined therefrom by abrupt
shoulders, and a layer of metal applied to the
and de?ned from said portions of lesser thickness general surface of said portions of lesser thick 15
ness, said layer of metal being provided with
15 by abrupt shoulders, said characters in relief be
ing provided with concavely beveled side walls of apertures conforming to said abrupt shoulders.
roughened glass, and an opaque layer covering
WILLIAM H. SPENCER.
the forwardly-presented surface of said portions
LESLIE R. BIRDSALL.
of lesser thickness and de?ned from the basal
20
WILLIAM BAHLER.
20 edges of characters in relief by said abrupt shoul--v
ders.
Документ
Категория
Без категории
Просмотров
0
Размер файла
470 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа