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Патент USA US2120380

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June 14, 1938.
A, R THOMPSON
I
2,120,380
SIGNAL DEVICE
Filed Feb. 25, 1956
.
INVENTOR.
ARTHuR P. ‘Fm/menu
BY
777%
/1/"
ATTORNEY.
Patented June 14, 1938
2,120,380
UNITED STATES PATENT OFFICE
2,120,380
SIGNAL DEVICE
Arthur R. Thompson, San Francisco, Calif.
Application February 25, 1936, Serial No. 65,543
6 Claims. (01.116-52)
This invention relates to signaling devices and
has for its objects the provision of improved
means for signaling the intended movements of
an automobile or vehicle in a manner simulating
the arm signals ordinarily given for right or left
turns or for stopping, and which means is sim
ple, easily operated, and gives the desired signals
in an unmistakable manner, and when not oper
ated, the device is adapted to be withdrawn from
signaling position. Other objects and advantages
will appear in the drawing and description an
nexed hereto.
In the drawing Fig. 1 is a side View of my de
vice, partly in section to reveal construction.
15
Fig. 2 is a plan view of my device.
Fig. 3 is a fragmentary sectional view taken
along the line 3-3 of Fig. 2.
Fig. 4 is an enlarged fragmentary view of the
portion shown in Fig. 3.
Fig. 5 is an enlarged sectional view taken along
the line 5-5 of Fig. l.
' In detail my device comprises a relatively ?at,
horizontally elongated, hollow housing H of sheet
metal having opposed parallel vertical sides I
connected by walls 2 along opposite edges and
open at its opposite ends. Along each side of
the housing is a ?at, elongated horizontally ex
tending arm 3 shaped to simulate an arrow with
the pointed end 4 extending beyond one of the
open ends of the housing. Arms 3 are each pro
vided with a horizontal slot 5, and a horizontal
pin 6 extends at its ends through the slot in each
of the arms and through openings in the side
walls I of the housing adjacent the open end of
the housing beyond which the pointed ends of the
arms extend. The pin 6 is provided with washers
‘I at its ends adjacent the outer sides of arms 3
respectively and a removable cover plate 8 car
ried by each of the arms extends over the ends
of the pin and washers as best indicated in Figs.
1 and 5. These cover plates are substantially the
length of the slots 5 and are held in place by
edges 9 of the arms being turned over to form
grooves in which opposite edges of the cover
plates respectively are slidable.
The outer pointed ends 4 of the arms 3 are
connected by edge walls Ill, that also space the
arms, and reflecting prisms H are secured to the
opposite vertical sides of the arms at the pointed
end.
A ?at bar I2 is secured at one end between the
outer ends 4 of the arms by a pair of pins I3
and extends horizontally inwardly into the hous
ing through the open end thereof to a point I4
55 about two-thirds of the distance between the op
posite open ends of the housing, which bar is
horizontally slotted at I5 to pass the pin 6, thus
the arms 3 and bar I2 are parallel to each other
and slots 5 and I5 are similarly parallel.
Secured to end I4 of bar I2 is a yoke member 5
I6, the ends of the arms of the yoke being pivot
ally connected to the end of the bar by a pin I7
and a horizontally elongated coil spring I8 con
nects'between the yoke I6 and a U-shaped bracket
l9, which bracket is suitably secured at the open 10
end of the housing opposite the pointed ends 4
of the arms 3. The arms 3 and bar I2 are thus
yieldably held in horizontal position by spring I 8,
one end of slot I5 engaging the pin 6 so that the
pointed ends 4 of the arms 3 will project only 15
a short distance beyond the end of the housing.
The bracket I9 supports a pair of grooved, su
perposed spaced horizontal rollers 20, 2| between
the arm of the bracket secured on a vertical shaft
22 that is rotatably supported at its ends in open- 20
ings in the arms of the bracket I9.
Within the housing, adjacent the end support
ing the bracket I 9, are a pair of vertically spaced
grooved rollers 23, 23' rotatably mounted on pins
24 that extend horizontally between sides I of 25
the housing.
.
The housing H- is shaped progressively wider,
in a vertical plane, toward pointed ends of the
arms 3 to a point about three-fourths of the dis
tance from bracket I9 and from this point the 30
width is progressively reduced to the open end
through which bar I2 extends. At the widest
portion, and adjacent opposite walls 2 respec-‘
tively, are a pair of grooved rollers 25, 25’ rotat
ably supported on horizontal pins or shafts 26 35
mounted at opposite ends to side walls I.
The housing H is pivotally supported for rota
tion on a vertical axis at the end adjacent the
bracket I9 but spaced therefrom a short distance
toward the opposite end of the housing. The piv- 40
ots so supporting the housing comprise a pair of
oppositely extending vertical arms 21, 28 secured
to the housing, arm 27 extending upwardly from
the housing and arm 28 extending downwardly
therefrom. These arms are shaped at their outer 45
ends to form cylindrical ends around which are
torsion coil springs 29, one end of each spring re
spectively engaging each arm and the opposite
end of the spring engaging an upper bracket 30 ,.0
and a lower bracket 3| through which brackets o
the‘cylindrical ends of the'arms rotatably extend.
The brackets are‘ secured to a supporting plate
32 that is adapted to be secured by screws 33 to
the side 34 of the vehicle in a suitable position. 55
2,120,380
2
ing one end or the other end of the cord or to
Thus the brackets 39, 3| form bearings carry
ing the housing and pivotally mounting arms 21,
28 for swinging the housing horizontally.
pull both ends simultaneously.
one end of arm 49 in notch 41) in a position
parallel to the side of the vehicle on the left side
The springs 29 are so arranged as to normally
urge the housing to lie ?at adjacent the side of
the vehicle, or parallel thereto, with the end of
the housing at arms 21, 28 toward the forward end
of the vehicle.
Below bracket member 39 is a vertical T-shaped
thereof if it is desired to make a right turn, the
end 51’ is pulled, which causes the device T to
pivot by the cord pulling against roller 53 on the
lower end of leg v43, to release the one arm of
member 49 and the housing H is simultaneously 10
pulled around to perpendicular position in the
locking device T, (Fig. 3) rotatably supported
at the head of the T on the outer end of a hori
direction of the arrows (Fig. 2) and against the
resistance of springs 29. At the same time the
inner end of bar I2 is moved forwardly and up
wardly by reason of the pull on end 51’ of the 15
cord 55 thus carrying the arrow-shaped arms 3
in the same direction and causing the arms 3 to
pivot on pin 6 to the position indicated in dotted
line at 3' in Fig. 1. The housing is held locked in
zontal shaft 4| that is secured at its inner‘end
to plate 32. A torsion spring 42 (Figs. 2, 3) is
is on said shaft between the plate and locking
15
device, one end engaging the device and the
other end engaging the plate so as to tend“
to hold the device T with its depending leg 43
vertical against a stop 44 carried by the plate 32.
The upper sides of the arms 45, 46 forming the
20 head of the T have convex upper cam surfaces
and spaced notches 41, 48 at opposite sides of
shaft 4|.
A horizontally disposed L-shaped member 49,
resembling a bell crank, is rigidly secured at the
~ this perpendicular position and the arms 3 are
held in the inclined position 3’ so long as there
25 juncture of the arms thereof to the vertical arm
21, and when the housing is normally disposed
parallel to the side of the vehicle, one end of said
member 49 engages in notch 41 of the device T.
Upon pivoting the device T as indicated in Fig.
30 4, to the dotted line position the end of member
49 in notch 41 is released from the notch 41 and
the housing is free to swing horizontally on brack—
ets 30, 3| to a position perpendicular to its nor
mal position, in which perpendicular position the
35 other end of member 49 will engage in notch 48
and the housing will be locked in this position
so long as the housing is held in its perpendicular
position. The arms of member 49 in moving
from and to the positions mentioned with refer
ence to the device T will slide over the cam sur
faces at the top of the arms of the device and
notch 48 is so shaped to securely hold the end
of member 49 therein when the arms of the device
T are in the dotted position as indicated in Fig.
45 4. Thus when leg 43 of the T-shaped device is
moved back to vertical, the end of member 49 is
released from the notch 48 and the housing is
free to move back to its normal position under
in?uence of the torsion springs 29.
The lower end of leg 43 of the device T is cut
' out at a point along one vertical edge as at 50,
for receiving a vertical roller 5| therein (Fig. 3),
which roller is rotatably supported at its ends to
the leg at the upper and lower edges of the cut
out portion, and the plate 32 also rotatably sup
ports a pair of horizontally disposed rollers 52, 53
on a vertical shaft 54, which rollers are disposed
at the same level as the roller 5|.
.
A ?exible cord, 55, chain, or the like, exten
60 from a position accessible to an operator within
the vehicle, around a side of rollers 52, 5| to with
in the open end of the housing positioned adjacent
roller 5|, and from thence past and against the
side of roller 23 that is adjacent roller 23', then
forward and around the outer side of roller 25
and then rearwardly to around the inner end of
bar l2 to which it is secured by a pin 56 or other
suitable means. The cord is continued from the
inner end of bar 12 to around the outer side of
70 roller 25’, then against the inner side of roller
23', over roller 20, past and against rollers 5|
and 53 and back to the inside of the vehicle. The
inner ends of cord 55 are respectively provided
with cord pulls 51, 51' or may be connected to
7.55
any suitable actuating device for selectively pull
,
In operation, with the housing locked (by the
is tension on the end 51’ of cord 55 by its being
pulled as described, since the opposite arm of
member 49 will also be swung to engage in notch
49 of arm 46.
25
Upon releasing the pull on end 51' of the cord,
the housing and arm will automatically swing
back to the normal position indicated in full line
in Fig. 1 and will automatically be locked in said
normal position since release of the pull on cord
55 will permit leg 43 to swing to vertical position
with the end of arm 49 in notch 41 under in?u
ence of spring 42.
If a left turn is to be made, the operator pulls
ends 51 and 51' together at the same time in
which case the unlocking of device T is exactly the
same as in the above description for the right
turn by. reason of pivoting the device T on shaft
4|, and the housing will swing in the same man
ner, but the arms 3 assume the position indicated
in dotted line at 3" in Fig. l and will movehorizon
tally outwardly of the end of the housing. The
housing will be looked, as above described, in the
perpendicular or outwardly extending position as
long as both ends 51, 51’ are pulled in the same 45
manner as described for the “right turn” will like
wise be released to automatically swing back to
the position shown in full line in Fig. 1 when the
pull on the ends 51, 51’ is released.
If a stop is to be made, theend 51 only will be 50
pulled, and the arms 3 will assume the dotted
position 3"’ in Fig. 1, the locking, unlocking, and
swinging of the housing being the same as already
described for the other two positions, the only
difference being that the arms 3 are inclined .
downwardly opposite to the position 3'.
The simultaneous swinging of the housing and
moving of the arms outwardly and in an arcuate
path for right turn and stop signals or the hori
zontal movement of the arms for a left turn, gives (30
unmistakable signals, and the provision of the
reflecting prisms, which may be extended along
the arms, if desired, facilitates night signalling
without danger of the signals being overlooked.
The springs 29 function to always tend to swing
the housing on its pivots at brackets 30, 3|, back
to parallel with the side of the vehicle, and spring
42 (Fig. 2) functions to always tend to return
the device T to a position with its arms 45, 46 70
horizontal and leg 43 vertical, while a pull on
either or both ends 51, 51' of cord 55 always
functions to simultaneously swing the housing
outwardly on its bearings and to move the arms
3 outwardly of the housing to one of the three
2,120,380
positions 3', 3", 3"’, according to which of the
ends 51, 51’ is pulled.
‘
It is of course obvious that a housing may cover
the operating parts of my device without inven
tion, and any suitable actuating device, such as a
vacuum motor operated from the automobile
manifold, or electric solenoids, may be used to
actuate the signal.
Having described my invention, I claim:
10
1. In a signaling device, the combination of an
elongated, horizontally disposed arm, means
mounting said arm for movement thereof about
a vertical axis and for movement in.a direction
radially outwardly of said axis about a horizon
15 tal axis to a position extending angularly relative
to a horizontal plane, means for causing the
aforesaid movements of said arm, the means
mounting said arm including a vertical pivot for
swinging the arm thereabout, and a separate
horizontal pivot slidably and pivotally support
ing the arm for sliding movement of the arm on
the pivot in a direction transversely of the axis
of the horizontal pivot and for rotating about
said horizontal pivot.
25
2. In a signaling device, the combination of an
elongated, horizontally disposed arm, means
mounting said arm for movement thereof about
a vertical axis and for movement in a direction
radially outwardly of said axis about a horizon
tal axis to a position extending angularly rela
tive to a horizontal plane, means for causing the
aforesaid movements of said arm, the means for
causing the movements of the arm comprising a
?exible cord connected at a point intermediate
its ends to said arm and the ends of said cords
being arranged and adapted for selective actua
tion thereof as desired, said cord being arranged
and adapted to cause the arm to move to different
angular positions relative to the horizontal plane
40 in which the arm is normally disposed depending
upon which end of the cord is actuated and to
cause the arm to move horizontally without said
angular displacement upon the ends of the cord
being actuated simultaneously, and means
45 mounting said arm, including a supporting mem
ber therefor and a horizontal pivot slidably and
pivotally supporting said arm on said member
for movement thereabout in a direction longi
tudinally of the arm.
50
3. In a signaling device of the character de
3
scribed, an elongated arm, a hollow housing,
means for supporting said arm adjacent an outer
side of said housing including a member rigidly
secured to said arm extending into said housing,
a pivot rigidly secured to said housing slidably 6
and pivotally mounting said member and arm
for movement therealong and for swinging there
about, means for causing the arm and member to
simultaneously move together along said pivot
and to swing thereabout to a plurality of radially 10
extending positions relative to said pivot and piv
ot means mounting said housing for swinging
on a vertical axis, the aforesaid means for caus
ing movement of the arm and member being
arranged and adapted to cause the housing to 15
swing on its mounting upon actuation of said
means.
4. In a signaling device of the character de—
scribed, a pair of parallel spaced, normally hori
zontally disposed elongated arms, means connect 20
ing said arms for securing them in opposed rela
tion, a hollow housing disposed between said
arms, means pivotally and slidably securing said
arms to said housing for pivoting said arms on a
horizontal axis and for moving said arms to var 25
ious angular positions relative to horizontal along
the sides of said housing, means for causing the
arms to pivot on said axis and to move to said
various angular positions relative to horizontal
along the sides of said housing.
30
5. In a construction as de?ned in claim 4, the
means for causing the aforesaid movement of
said arms including a bar extending into said
housing at one end and ?exible operating ele
ments connected to an end of said bar extending 35
oppositely from opposite sides thereof, rollers at
opposite sides of the bar spaced therefrom over
which said ?exible elements are supported and
said ?exible elements extending from said hous
ing at the end thereof opposite the bar for actu 40
ation by an operator.
6. In a construction as de?ned in claim 4, piv
ots mounting said housing for swinging on a ver
tical axis, and the means for causing the arms
to move on and to pivot about said horizontal
axis being arranged and adapted to swing the
housing on its vertical pivots upon actuation of
said last-mentioned means.
ARTHUR R. THOMPSON.
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