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Патент USA US2129170

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sept'. 6, 193s.
w. H. FRANK ET ‘AL
2,129,170
ELECTRICAL DISTRIBUTION` SYSTEM
Filed May Y, 1936
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Patented Sept. 6, 1938
2,129,170
t >UNITED STATES PATENT - ori-‘ica~
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2,129.17 0
ELECTRICAL DISTRIBUTION SYSTEM
William H. Frank and Lyman C. Fisher,
Detroit, Mich.
Application May 7, 1936, Serial No. 78,330
9 Claims. (Cl. 191-45)
This application relates to the movable or con
nector and lcollector parts of electrical distribu
tion systems of the trolley duct type, and discloses
5
a novel trolley whose details oiconstruction will
readily be understood upon reference to the ap
pended drawing illustrating these devices.
In the drawing.
_
‘
,
Fig. 1 is an elevation view of the trolley;
Fig, 2 is a top planview thereof;
'
Figs. 3 and 4 are sections as if on lines 3--3 and
4-4 of Figs. 1 and 2, respectively; .
Fig. 5 is a bottom plan view of Fig. 4;
10
Fig. 6 shows a plate provided as an alternative
to the plate shown in Fig. 5;
`
Figs. 7 and 8 are sections as if on lines 1_1 and
8-‘8 of Figs. 2 and l, respectively.
The- trolley of these figures comprises two sheet
metal plates |00 which are spaced and insulated
from each other by three insulation laminal or
2
plates |02--|03-|02. Each plate |02 is aper
tured to permit the passage therethough of a
portion of plate or strap |04 disposed in a slot
or cutout of central plate |03 and whose lower
end is fonned with a binding vscrew |05 and also
25 a spring contact |06 of the prong receiving type.
Ori the ‘upper end of each strap |04 is a plate
|01 on whose free end is a roller contact |08,
and each plate |01 is pivotally riveted to the
strap |04 by means of a rivet |08 encircled by a
.30 spring` ||0 which tends to urge the rollers |08
away from each other and .also tends to urge the
plates |0'| into intimate contact with the bent-`
over portions of the plates |04. 'I’hrough holes
in the plates |02~--|03 pass axles ||| on which
are disc wheels ||2`, and these axles are journalled
and supported in ñanges ||4 of the metal plates
|00.
Aligned notches H5 in the plates «o2-ma form
seats for axles || 6 on which are thrust rollers ||'|.
40
The plates |02--|03 are clamped. between and
by the metal plates |00 to form a unitary assembly
Ihaving suitable insulation characteristics but be
ing suiiìciently thin to ride in a slot of a duct.
The lower portions of the metal plates |00 are
45 bulged outwardly as shown best at Figs. 3 and 7
to form housings for the terminals |05 and re
ceptacle contacts |06 on the ends of the contact
straps |04 and suitable insulation plates ||8 are
disposed in the bulged-out portions of the plates
|00 to insulate the straps |04 and the receptacle
parts from the plates, and if desired these insula
tion plates ||8 may have portions underlying the
screws |05. For closing the housing formed by
the- bulged-out portions of the plates |00 there55 may be provided a plate of insulation such as the
5.o
one shown at H9, Fig. 5, or |20, Fig. 6. The
plate of Fig. 5 has a central scoring | 2| which may
be knocked-out to provide a hole through which
may be passed the terminals of the conductor
adapted to be connected to the plates |04 by the 5
binding screws |05, and the plate ||9 is detach
ably held in closing position with respect tothe
housing by means of the clamped-over lugs |22
of the plates |00 and the swivel latch |23 piv
otally riveted to the plate H8 at |24 and adapted 10
to be rotatably slid under said lugs |22 to hold
the plate I I9 in place, removably so as to provide
access to the screws |05.
Since the plate |20
may not ordinarily be removed, it may be held
in place merely by the clinched-over lugs |22 and 15
is thus ordinarily not removable from the con
nector.
'
The two metal plates |00 are mutually secured
by means of ilanges |28 formed on each of them
and projecting through and spun over slots |21
of the other of them, in the manner of a hollow
rivet. These slots provide anchorages for loads
supported by the device, and it will be observed
that the points of anchorages provided by these
slots are directly supported with respect to the
supporting axles || I.
In Fig. l there is diagrammatically disclosed a
U-shaped frame |28 having portions hooked over
and ‘seated in the slots |21 of the carriage, which
frame is equipped with a ñxture stud |29 where- '
by an electric fixture may be supported by the
frame and thus by the carriage, with the sup
porting line centered with respect to the support
' ing rollers ||2, whereby tilting or cocking of the
carriage in the duct is automatically prevented 35
il); the weight of the load supported by the frame
8.
'
Now having described the trolleys of this appli
cation, reference will be had to the claims which
follow for a determination of the protection 40
sought by this application.
What we claim is:
i
1. A collector comprising an insulation carriage
of thin ñat plate form, bent plates having parts
embedded within the carriage and projecting lon 45
gitudinally beyond an edge thereof to provide
adjacent exposed ends at such edge and also pro
jectingl transversely from opposite sides of the
carriage to provide exposed oppositely projecting
ends at such opposite sides. side roller contacts 50
on the last mentioned exposed ends, and a housing
depending from the aforementioned edge of the
carriage and having an enlarged portion below
such edge and surrounding the exposed ends at
such edge, and having a restricted portion em 55
2
2,129,170
bracing that part of the carriage in which are
embedded parts of the plates, the edges of the
restricted portion of the housing, remote from
the enlarged portion of the housing, having inte
gral fianges, an axle passing transversely through
and thus supported by said ilanges and the car
riagey and supporting rollers on the ends of the
axle.
2. A collector comprising an insulation carriage
10 of thin iiat plate form, bent plates having parts
embedded Within the carriage and projecting
thrust rollers thereon, the carriage and the re
stricted portion of the housing having cutouts
through which project the rollers.
5. A collector comprising an insulation carriage
of thin fiat plate form made of laminas of insu
lation material, bent plates having parts em
bedded within the carriage and projecting longi
tudinally beyond~ an edge thereof l to provide ad
jacent exposed ends at such edge and also pro
jecting transversely from opposite sides of the
carriage to provide exposed oppositely projecting
longitudinally beyond an edge thereof to provide ends at such opposite sides, side roller contacts
adjacent exposed ends at such edge and also on the last mentioned exposed ends, and a hous
projecting transversely from opposite sides of the ing depending from the aforementioned edge of
15 carriage to provide exposed oppositely projecting ' the carriage and having an enlarged portion
ends at such opposite sides, side roller contacts below such edge and surrounding the exposed
on the last mentioned exposed ends, and a hous- . ends at such edge, and having a restricted por
ing depending from the aforementioned edge of
the carriage and having an enlarged portion
below such edge and surrounding the exposed
ends at such edge, and having a restricted portion.
embracing that part of the carriage in which are
embedded parts of the plates, the edges of the re
stricted portion of the housing, remote from the
tion embracing that part of the carriage in which
are embedded parts of the plates, the edges of
the restricted portion of the housing, remote from 20
enlarged portion ofthe housing, having integral
iianges, an axle passing transversely through and
thus supported by said ñanges and the carriage,
axle, axles within the carriage and having side 25
thrust rollers thereon, the carriage and the re
and supporting rollers on the ends of the axle,
the enlarged portion of the housing being open
30 sided to provide access to the exposed ends of the
plates therewithin, these being formed as termi
the enlarged portion of the housing, having inte
gral flanges, an axle passing transversely through
and thus supported by said flanges and the car
riage, and supporting rollers on the ends of the
stricted portion of the housing having cutouts
through which project the rollers.
,
6. A collector comprising an insulation car
riage of thin iiat plate form, bent plates having 30
parts embedded within the carriage and project
nal binding means, and a quick detachable cover
for the open side o_f the housing.
ing longitudinally beyond an edge thereof to pro
3. A collector comprising an‘insulation carriage
of thin ilat plate form made of laminae of insula
projecting transversely from opposite sides of the
carriage to provide exposed oppositely projecting 35
ends at such opposite sides, side roller contacts
tion material, bent plates having parts embedded
within the carriage and projecting longitudinally
beyond an edge thereof to provide adjacent ex
posed ends at such edge and also projecting
transversely from opposite sides of the carriage
to provide exposed oppositely projecting ends at
such opposite sides, side roller contacts on the
last mentioned exposed ends, and a housing de
pending from the aforementioned edge of the
45 carriage and having an enlarged portion below
such edge and surrounding the exposed ends at
such edge, and having a restricted portion em
bracing that part of the carriage in which are
embedded parts of the plates. the edges of the
-restricted portion of the housing, remote from the
enlarged portion of the housing, having integral
ilanges, an axle passing transversely through and
thus supported by said ñanges and the carriage,
vide adjacent exposed ends at such edge and also
on the last mentioned exposed ends. and a hous
ing depending from the aforementioned edge of
the carriage and having an enlarged portion be
low such edge and surrounding the exposed ends 40
at such edge, and having a. restricted portion
embracing that part of the carriage in which are
embedded parts of the plates, the edges of the
restricted portion of the housing, remote from
the enlarged portion of the housing, having in 45
tegral flanges, an axle passing transversely
through and thus supported by said flanges and
the carriage, and supporting rollers on the ends
of the axle, hollow rivets at opposite ends of the
restricted portion of the housing for intersecur 50
lng the parts of such restricted portion and for
providing lined holes or bearings in such re
stricted portion for load supports.
7. A collector comprising an insulation car
and supporting rollers on the ends of the axle.
4. A collector comprising an insulation carriage riage of thin flat plate form, bent plates having
of thin flat plate form, bent plates having parts ` parts embedded within the carriage and project 55
embedded within the carriage and projecting ing longitudinally beyond an edge thereof to pro
longitudinally beyond an edge thereof to provide
adjacent exposed ends at such edge and also pro
jecting transversely from opposite sides of the
carriage to provide exposed oppositely projecting
ends at such opposite sides, side roller contacts
vide adjacent exposed ends at such edge and also
projecting transversely from opposite sides of the
carriage to provide exposed oppositely projecting
ends at such opposite sides, side roller contacts
on the last mentioned exposed ends, and a hous
ing depending from the aforementioned edge of
the carriage and having an enlarged portion be
low such edge and surrounding the exposed ends 65
ing depending from the aforementioned edge of
the carriage and having an enlarged portion below
such edge and surrounding the exposed ends at
such edge, and having a restricted portion em
bracing that part of the carriage in which are
embedded parts of the plates, the edges of the
70 restricted portion of the housing, remote from
the enlarged portion of the housing, having inte
gral flanges, an axle passing transversely through
and thus supported by said flanges and the car
riage, and supporting rollers on the ends of the
75 axle, axles within the carriage and having side
on the last mentioned exposed ends, and a hous
at such edge, and having a restricted portion
embracing that part of the carriage in which are
embedded parts of the plates, the edges of the
restricted portion of the housing, remote from
the enlarged portion of the housing, having in 70
tegral iianges, an axle passing transversely
through and thus supported by said flanges and
the carriage, and supporting rollers on the ends
of the axle, the ends of the restricted portion of
the housing being extended beyond the plate 75
3
2,129,170
`form carriage and being directed towards the
center of the carriage to form bumpers therefor.
8. A collector comprising an insulation car
insulation material, bent plates having parts em
bedded within the carriage and projecting longi
tudinally beyond an edge thereof to provide ad
riage of thin flat plate form, bent plates having jacent exposed ends at such edge and also pro
parts embedded within the carriage and project >jecting transversely from opposite sides of the
carriage to provide exposed oppositely projecting
ing longitudinally beyond an edge thereof to pro
vide adjacent exposed ends at such edge and also ends at such opposite sides, side roller contacts
projecting transversely from opposite sides of the on the last mentioned exposed ends, and a hous
carriage to provide exposed oppositely projecting ing depending from the aforementioned edge of
ends at such opposite sides, side roller contacts the carriage and having an enlarged portion be
low such edge and surrounding the exposed ends
on the last mentioned exposed ends, and a hous
ing depending from the aforementioned edge of at such edge, and having a restricted portion
embracing that part of the carriage in which are
the carriage and having an enlarged portion be
low such edge and surrounding the exposed ends embedded parts of the plates, the edges of the>
15 at such edge, and having a restricted portion restricted portion of the'housing, remote from
embracing that part of the carriage in which the~enlarged portion of the housing, having in
are embedded parts of the plates, the edges of tegral ñanges, an axle passing transversely
the restricted portion of the housing, remote through and thus supported by said flanges and
the carriage, and supporting rollers on the ends
from the enlarged portion of the housing, hav
20 ing integral flanges, an axle passing transversely of the axle, axles within the carriage and having
- through and thus supported by said flanges and side thrustv rollers thereon, the carriage and the
the carriage, and supporting rollers on the ends restricted portion of the housing having cutouts
of the axle, hollow rivets at opposite ends of the through which project the rollers, hollow rivets
at opposite ends of the restricted portion of the
restricted portion of the housing for intersecur
lng the parts of such restricted portion and for housing for intersecuring the parts of such re~
stricted portion and for providing vlined holes
providing lined holes or bearings in such restrict
ed portion for load supports, the ends of the re
stricted portion of the housing being extended
or bearings in such restricted portion for load
Supports, the ends of the restricted portion of
beyond the plate form carriage and being di
the housing being extended beyond the plate
form carriage and being directed towards the :
center of the carriage to form bumpers therefor.
30 rected towards the center of the carriage to form
bumpers therefor.
9. A collector comprising an insulation car
rlage of thin ñat plate form made of laminae of
‘
WILLIAM H. FRANK.
LYMAN C. FISHER.
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