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Патент USA US2108446

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Feb. 15, 1938.
o. c. RITZ-WOLLÉR
2,108,446
REFLECTOR DEVICE >
Filed Jan. 19, 1935l
2 sheets-sheet 1
'
Imfenlär, ~
@mmc ÄVMW‘
#WMA
Fell 15, `1938»
`
o. c.- RlTz-woLLER
2,108,446 `
REFLECTOR DEVICE
Filed Jan. 19, 1935
2 Sheets-Sheet 2
Mt@
Patented Feb. 15, 1938
2,108,446
l ’UNITED STATES PATENT OFFICEv
Oliver lâlëliîïîäîeîrzlîîìgo, lll.
Application January 19, 1935', Serial No. 2,479
9 Claims.
My invention relates> to' reilector devices and
particularly to a form of device adapted for use
on the sides and ends of a truck in position to
catch the rays'from the headlights 'of an oncom
5 ing car and reflect such rays backwardly to the '
driver of such oncoming car for a warning as
. to the presence of the truck on or near the high
(Cl. SH2)
-
the pad and another lens in position within-an
opening for showing the relative siz'es of the P91198;
'
'
_ Fig. '7 is a front face view .of a modified form
of construction:
l
~
Fig. 8 is a central vertical section taken on line
' 8--8 of Fig. 7;
‘
'
Fig. 9 is a vertical sectional view through
way. It is one of the objects of my invention to
fragmentary portion of the -device as shown in
provide a new and improved form and arrange
10 ment of parts comprising a reñector device of. Fig. 8 but showing the parts in' a preliminary
.
this type sol arranged and constructed as to give position; and
Figs. 10 and 11 are perspective views of two of
improved results with respect to the initial ef
the elements of the structure shown separately
ficiency of the device for directing a ray back
wardly> toward its source, 4with respect toits
15 sturdiness and-its degree of protection ,against
breakage or distortion under the exceedingly hard
conditions of 'use on a truck, and with respect to
its protection against either temporary or perma
nent deterioration as a reflector by reason of the
20
presence of moisture.
-
I
~ To these ends, it is one of the objects of my
invention to provide such an improved arrange
ment of parts> as to insure facility of manufacture
whereby a high degree of precision may/be at
25 tained in manufacture of the devices upon a
commercial scale without u?îduly increasing the4
for clearness of illustration.
Referring now to Figs. 1 to 6 inclusive, in 15
which corresponding parts’are indicated by the
same reference ’charactersI ’ I6 indicates a casing
member formed of sheet’ metal having a plurality
_of openings I6 in its front face, in the arrange-*
ment shown the casing member being pressed into 20
form out of sheet metal. Immediately in rear of
the front wall of the casing member I5, I have
provided a. pad I1 of sponge rubber provided with
a plurality of openings I8 therethrough in posi
tions corresponding to those of the openings I6
in the front face of the housing memberlä. In
It is another object of my
the openings I8 of the pad I1, I have provided a
invention to provide an improved combination'of
series of substantially spherical lenses I9, such
. cost ofthe article.
lenses I9 being of substantially greater size than
that of the openings I8 whereby it is necessary só
to stretch the rubber about the openings >some
what for the insertion of the lenses into position.
even if the housing may be distorted from its The pad I1 is preferably molded complete with
original condition, and which maybe relied upon the openings i9 therethrough.`
'I'he lenses I9 are preferably formed of'glass 35
35 for keeping `out moisture under any and all of the desired color, being formed originally of
weather conditions.
‘
substantially spherical form and being then given
It is] another object of my invention to im
prove devices of this type in sundry details here- ` a high polish by well-known methods, which can
inafter pointed out. The preferred means by be accomplished readily and cheaply with a high
degree of success. The lenses I9 produced upon
40 which I have accomplished my several objects are
cooperating rigid parts and resilient parts which
30 Shall be .effective for housing the lens portions
»and protecting them from breakage, which shall
continue to hold the parts in cooperative relation
illustrated' in the`drawings and are hereinafter '
a commercial basis are of a high degree of ac
«specifically described." That which I believe to be
curacy as to their spherical form and are very
new and desire tocover by Letters Patent is set
hard so as toV withstand a hard blow from a
hamm r or the like without breafkage.
ì
forth in theclaims.
45 -In the drawingsz-
~
-
» Fig. 1 is a front face view of the. preferred form
of -my device;
'
In t_ e arrangement shown, I ‘have provided
Va. plate 20 in rear of the pad I1 and the lenses
I9, the plate 20 being provided with openings in'
positions corresponding to those in the front wall
of the casing, the openings in the plate 20 being
-’_2-2 of Fien-1_;
ì
Figs. 3, 4, and 5 are sectional views through of such size as to insure thatv the pad i1 shall
50
portions of isolated parts of the device for better vltne'coxnpressed somewhat between the plate lili'l j-¿f showing their construction;
\
yá and the front wall of the casing when the plate "-'
Fig. 2 is a central vertic al section taken at line
Fig. 6 is a cross sectional view tln'ough a por
tion of the front pad of the device with a lens`
55
20 lis pressed forwardly in theßcasing into engage
ment withthe-lenses IQ//In’rear of the retainer
in position opposite one of the openings through( plate 20, I have provided a spacer member -which 55
l
2
2,108,446
in the arrangement shown is in the form of a
plate 2| having a series of openings 22 there
through, the metal around the openings 22 be
ing pressed into oblique position so as to provide
flanges 23 about the openings by which the effec
tive thickness of the plate is increased. In rear
of the spacer member 2|, I have provided a re
flector 24 which in the construction illustrated
is in the form of a disc of polished aluminum or
10
chromium having forwardly concaved portions
25 arranged about the face ofthe member in
positions corresponding to the positions of the
lenses I 9. The curvature of the concaved por
tions 25 and the effectiveV thickness of the spacer
15 member 2| are such that the concaved portions
are concentric with respect to the spherical lenses
I9. For holding the spacer member 2| and the
reflector 24 in position with respectv to each
other, I have provided lugs 25 on the plate 2|)
20 which extend through suitable openings 21 and
28 in the spacer member and the reflector for
preventing any substantial relative movement
between the parts.
In the casing I5 in rear of the reiiector 24, I
25 have provided a pad 29 of sponge rubber of such
thickness that it normally extends some little
distance beyond the rear face of the casing mem
ber I5. In rear of the pad 29, I have provided
a sheet 30 of rubber and a metal plate 3| which
30 are held in position with respect to the casing
member I5 by means of a flange 32 carried by
the casing member, the flange 32 being connect
ed with the plate 3| by means of rivets 33 which
in the arrangement shown are in the form of
integrally formed grommets. The arrangement
35
is such that when the back plate 3| is pressed
into closure position the marginal portion of
the sheet 30 acts as a gasket for providing a
moisture-tight closure of the rear face portion
40 of the housing or casing. The pad 29 is alsol
substantially compressed so as to apply sub
stantial pressure forwardly upon the reñector 24,
the spacing member 2 I, and the plate 20 so as to
bring the plate 20 into tight engagement with
the rear face portions of the lenses I9, whereby
the pad I1 is compressed forwardly in addition
to the compression produced laterally by the in
sertion of the lenses I 9.
The result is that an
effective moisture-tight closure is produced be
50 tween the front wall of the casing and the
lenses I9.
'
With the lenses I9 of highly accurate spheri
Figs. 'l to 1l, 34 indicates a casing member similar
to the casing member I5 having openings 35 in
its front face. Immediately in rear of the front
wall of the housing or casing member 34, I have
provided a sheet of rubber 36 provided with open
ings 31 therethrough corresponding in position
to'the positions of the openings 35 in the front
wall of the casing member, such openings 31 be
ing of considerably smaller size, however, than
that of the openings 35. In rear of the sheet of 10
rubber 36, I have provided a plurality of sub
stantially spherical lenses 38 similar to the 'lenses
I9 above described, the arrangement being such
that when the forwardly tapered front portions
of the lenses 38 are pressed forwardly so as to ex
tend through said openings 35 and 31 into the
position as shown in Fig. 8 the marginal portions
of the sheet of rubber about the openings 31 are
turned forwardly into the form` of flanges 39 which
serve as resilient seats for the lenses 38 in the 20
openings 35. The arrangement is such that when
the lenses 38 and the rubber member 36 are
pressed forwardly a moisture-tight closure is ef
fected between the lenses and the front wall.
In rear of _the lenses 38, I have provided a plate 25
40 having openings 4I therethrough correspond
ing in position to the position of the openings 35
in the front wall of the casing member. In rear
of the plate 40, I have provided a reflector plate
42 which in the arrangement shown is formed 30
of aluminum and highly polished on its front face.
As is clearly shown in Fig. 11, the plate 42 ls- pro
vided with a series of forwardly concaved portions
43 corresponding in relative position to the posi
tions of the lenses 38 so that the concaved portions 35
are adapted to fit over the rear end portions of
the lenses. In rear of the reñector, I have pro
vided a compressible pad 44 which inthe arrange
ment shown is made of sponge rubber, the pad
being of such thickness as normally to extend 40
backwardly out of the casing member~ 34. About
the pad 44 on the rear face of an outwardly
extending flange 45 of the housing or casing 34
I have provided a washer 46 of sheet rubber
which is held in position by a back plate 41. As 45
will be readily understood, the pad 44 is com
pressed substantially by the attachment of the
back plate 41 in position. In the arrangement
shown, the plate 41 is held in position by rivets
48 formed integrally with the flange 45 in the 60
form of grommets.
As'wiil be readily appreciated from an exami
cal form as produced~ upon a commercial basis nnation of my improved construction, the reflector
rather than by a precision process, with the rear is held positively in backwardly spaced relation
55 *face portions of the lenses and the front face of
the reflector protected against the presence of
moisture', and with the reñector accurately
formed and accurately positioned concentrically
with respect `to the lenses, my device is highly
60 efñcient for the purpose for which it is provided.
I have found in practice that a large proportion
of the ray of light striking the front face of the
reflector is returned to the source of light with
only a fair degree of spreading of the ray such
65 as is desirable for making the device effective as
a warning signal. My construction is such that
to the lenses at all times, the arrangement being 55
such that one of the lenses and the reflector may
be pushed backwardly together under heavy pres
sure without changing the backwardly spaced re
lation of the reflector with respect to the lenses,
the resilient support for the reflector (the pad 60
29 or the pad 44 in the arrangement shown)
being adapted to yield for permitting this result.
Upon the removal of the backward pressure from
`the lens, the resilient support serves to move the
reflector' and the lenses quickly forward again 65
into normal position‘with respect to the casing.
a. heavy blow can be applied to the lenses Without ~ If the backward movement of the parts with re
` breakage, the resilient mounting of the lenses spect to the casing has been such as temporarily
being such as to cushion the blow and prevent
substantial damage.
,
My improved device as above described is so
arranged and so organized that the parts can be
produced readily and cheaply, and the assembly
can. be effected very r-apidly by unskilled labor.
75
Referring now to the construction shown in
to destroy, the moisture-tight closure between the
casing and the lenses, such moisture-tight clo 70
sure is promptly :e-established upon the return
movement of the parts.
It will be appreciated that the retainer plate
20 (or the retainer plate 40) which is of com
paratively heavy sheet metal formation serves 75
.
. 2,108,446
as a' reinforcement for the metal reiiector, ‘act
,
3
ameter than that of the openings so as to be heid
_ ing to prevent bending of the reflector when back-y - by the wall portion in position with the major
ward pressure is applied upon one ‘or >more of portion >of the lens in rear of (said front wall por
the lenses without a corresponding pressure upon tion, a comparatively' thick pad of yielding ma
the remaining lenses. The arrangement is such
that when the abnormal backward pressure is.
relieved upon the lenses the parts are brought
back to normal operative position withoutv dis
tortion or disarrangement otherwise.
A
While I prefer to employ the form and ar
rangement of parts as illustrated in my drawings
10
and asfabove described, it is to be understood'
~ that my invention ‘is not to be limited to such
form and arrangement except so far as the claims
15 may be so ìlimited by the condition of the prior
'
art.
I
'
claimt-
,/g
'
terial having openings therethrough correspond
ing in position to the openings in said _front wall
`portion with the lenses positioned in the-open
ings in` the pad so that the pad engages the
_major part of the side wall portions of each of
the'lenses with parts of the pad substantially
compressed transversely between adjacent lenses,
a reflector member in backwardly spaced relation
rt/o said lenses, and means for applying forward
pressure on said reflector and lenses and pad s_o
"as to compress the pad against the 4lenses and 15
against the front wall portion of the casing and «
,
‘
.
_ "
>
for »sealing the face of theI casing member in
_1. In a. device .of the type described, the com.
bination of a casing member having- an opening
rear of said refiectorso as to prevent the,.entrance of moisture into contact with'the front
in its front wall portion, a lens having a for
face of the reflector.
-
‘
20
4. In a device of the type described, Vthe com
wardly tapered. portion extending through said»
opening, a member of yielding resilient material bination ofa casing member having a plurality
surrounding the forwardly tapered portion of
said lens and compressed. edgëwi'se of the /wall
25 between the tapered porti'on of the lens and the
-
of circular openings in its front wall portion, a
substantially spherical lens seated in each >of
said openings and of substantially greater diam 25
edge ofthe wall surrounding said opening when
eter than that of the openings so as to be heldy
said lens and said resilient member are pressed
forwardly, and means for holding said lens yield
_ingly in position and for tightly closing the cas
30 ing in rear of the lens for preventing the entrance
of water and comprising a' comparatively thick
pad of yielding resilient material in rear of
by the wall portion in >position with the maior
portion of the lens in rear of said fron‘t wall por
tion, 'a comparatively thick pad of yielding ma
terial having openings therethrough correspond
said lens -adapted when pressed forwardly to ap- ‘ i ings in the pad so that the pad engages the ma
ply forward pressure on said lens and said re
jor part of the side wall portions of each of the
lenses with parts of the pad, substantially com
35 silient member and adapted under normal con
x ditions to permit a substantial backward yielding
pressed- transversely between.- adjacent lenses,
movement of said lens, and means for holding
4 said pad ,compressed for normally applying for
interposed between said reñector member and
40
said lenses adapted when pressed forwardly by
ber- so as to hold said` resilient member also com
pressure o_n the reflector to press the lenses for
' wardly in -fixed forwardly spaced relation to the
reflector and to compress the pad against the
f
`
‘
2. In a device of-/the type described, the com
Cl
a reflector member in rear of said lenses, means
ward pressure on said lens and said resilient mem
pressed.
30
ing in position to the openings in said front wall
portion with the lenses positioned in the open
` bination of a casing member having a series of
45A
lenses and against the front wall portion of the
circular openings in its front wall portion,. a> casing-for preventing the entrance of moisture be
memberformed of resilient -yielding material in , tween the wall portion and the lenses, a second
position'in said casing memberA adjacent tojsaid
comparatively thick pad of yielding material in
said casing in »rear of said reflector,l and means
in centered registeringvposition with respect to - for closing the rear face of said casing member
‘ the openings in said front wall portion, substan- - and pressing said second pad forwardly for pre
tially spherical lenses seated 'in said openings in venting the entrance of moisture into contac
50 said resilient yielding member with their for
said reflector.
. > '
wardly tapered portions extending through the with
5. In> a device of the type described. the com
openings in said front _wall portion and serv
bination of a casing member having- a circular
ing when pressed forwardly to compress said opening in its front wall portion, a sheet of ñex
resilient yielding member aty the marginal por
ible material in rear of said -wall portion having
tions thereof about said openings betweenl said an opening therethrough of smaller size than that 55
forwardly tapered portions of the- lenses and said in
said wall portion, a‘lens seated in the open
front wall p_ortion, a reflector member in back
ings in said wall portion and said sheet and of
wardly spaced relation to said lenses, means for substantially greater size transversely than the .
applying yielding pressure forwardly onl said re
-60 ñector member i‘or pressing said lenses forward opening in said `wall portion so as to limit the
forward movement of _the lens with respect to
lwhereby an effective seal is produced adaptedl the
wall portion for keeping 'the major portion
normally to prevent the entrance ofv moisture
vbetween the lenses arid- said front wall portion ofthe lens in rear of said wall portion and forA
front wall portion and having Vopenings therein
and whereby said lenses are cushioned with re-.
65 spect to backward movement' in the'casing mem
pressing forward the marginal portion of said
sheet about the opening in the sheet in the form 65
ber, and means adapted by cooperation with the ' of an annular flange between the lens and the
above mentioned parts to provide a-watertight wall, and means for applying yielding forward
seal for said casing member in rear of said lenses
for preventing the entrance of moisture'from the
70
rear‘to the lenses; _
3. fIn~ a device of the type described, the oom
bination> of a casing member having aplurality
of circularv openings inV its front wall portion, a
substantially spherical lens seated in each of
75 said openings and of substantially greater“ di-~
pressure on 'said lens to compress said 'sheet and
for sealing the rear face of the casing member so
as to prevent the entrance of moisture into con 70
tact with the rear portion of the lens.
6. In a device of the typedescribed, the com
bination of a casing- member having a series of
circular openings in its front wall portion, a
sheet of rubber in said casing member adjacent
y2,103,446
' 4
-to said front wall portion and having openings
therein in correspondingly centered positions but
of smaller size than the openings in said front
wall portion, lenses seated in said openings hav
ing forwardly vtapered portions extending through
the openings so as to force the marginal por
tions of said sheet about said openings forwardly
in the form of flanges between the lenses and
the front wall portion, and means for applying
10 yielding pressure forwardly on said lenses so as
to compress said sheet and for sealing the rear
face of the casing member so as to preventÍ the
entrance of moisture into contact with the rear
portions of the lenses.
15
‘
'7. In a device of the type described, the com
bination of a casing member having a series of
circular openings in its front Wall portion, a
sheet of rubber in said casing member adjacent
to said front wall portion and having openings
20 therein in correspondingly centered positions but
of smaller size than the openings in said front
wall portion, substantially spherical lenses seated
in said openings with their forward portions ex
tending through tl‘ie openings so as to force the
marginal portions of said sheet about said open
ings forwardly in the form offlanges between the
lenses and the wall, and means for applying
yielding pressure forwardly on said lenses so as
to compress said sheet of rubber and for sealing
30 the rear face of the casing member so as to pre
but of smaller size than the openings in said
front wall portion, lenses seated in said open
ings having forwardly tapered portions extend
ing through the openings so as to force the
marginal portions of said sheet about said open
ings forwardly in the form of ñanges between
the lenses and the front wall- portion, a re
flector member in backwardly spaced relation to
said lenses, and means for applying yielding
pressure forwardly on said reflector member for 10
pressing said lenses forward so as to compress
said sheet of rubber and for sealing the rear
face of the casing member so as to prevent the
entrance of moisture into contact with the front
face of the reflector.
9. In a device of the type described, the com
bination of a casing member having a series of
circular openings in its front wall portion, a
sheet of rubber in said casing member adjacent
to said front wall portion and having openings 20
therein in correspondingly centered positions but
of smaller size than the openings in said front
wall portion, substantially spherical lenses seated
in said openings with their forward portions ex
tending through the openings so as to force the 25
marginal portions of said sheet about said open
ings forwardly in the form of flanges between
the lenses and the wall, a reflector member in
said casing member having forwardly concaved
portions in backwardly spaced relation to the
vent the entrance of moisture into contact with respective lenses in concentric relation thereto, l and means for applying yielding pressure for
the rear portions of the lenses.
wardly on said reiìector member for pressing said
8. In a device ofthe type described, the com
bination of a casing member having a series of lenses forwardly so as to compress said sheet of
circular openings in its front Wall portion,- a rubber and for sealing the rear face of the casing
sheet of rubber in said casing member adjacent member so as to prevent the entrance of moisture
to said front wall portion and having openings into contact with the front face of the reñector.
therein in correspondingly centered positions
OLIVER C. RITZ-WOILER.
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