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NW: 12, 1946.
c- E. TACK
2,411,067
BRAKE ROTOR .
Filed Jan. .17‘ 1944
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Patented Nov. 12, 1946
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r 2,411,067
UNITED STATES PATENT- OFFICE,
BRAKE ROTOR
Carl E. Tack, Chicago, Ill., assi‘gnor to American
Steel Foundries, Chicago, Ill., a corporation of
New Jersey
Application January 17, 1944, Serial No. 518,496
11 Claims.
1
My invention relates to brake discs and more
particularly to a brake rotor of the centrifugal
or blower type, capable of circulating a ?uid
cooling medium therethrough during rotation
thereof.
The principal object of my invention is to de
sign a rotor of the above-described type in which
a brake ring is provided having two spaced an
nularfriction plates with blower, blades extend
ing therebetween. A support hub member is con
nected to the radially inner extremities of the
blades intermediate the friction plates; and, in
order to afford a strong connection between the
hub member and the blades, the latter are con
structed of Y shape.
> ‘
>
My novel rotor is especially adapted ‘for con- ‘
nection to the wheel of a railway car truck.
However, it will be understood that the rotor may
be utilized in any arrangement and in any suit
able ?uid cooling medium to which it may be
adapted.
- In the drawing,
(0]. 1884.218)
2
is a generally Y-shaped member having a U
shaped portion 20, the spaced'legs‘ of which are
attached to the adjacent plate 2‘or 4 and the
base of which merges with the leg 22 of the Y,
said leg being connected to the opposite plate.
The member I4 is connected to the blades I0, I U
at the juncture of the U-shaped portions 29, 20
thereof with the portions 22,‘ 22 thereof, or, in
other words, the-member I 4 is connected toveach
Y-shaped blade III at the juncture of the fork
of said Y with the leg 22 thereof. This arrange
ment is believed to be of considerable signi?
cance‘in that it affords a‘strong connection be
tween the hub member [4 and the brake ring,
capable of resisting high torque stresses which
are developed in railway braking service. ‘This
connection is reinforcedby gussets 2d, 24 inte
grally formed with the ‘blades ID,‘ In at their ra
dially inner extremities and‘ merging with the
hub member l4. It will be understood that the
blades [0, lil also function as columns to resist
braking pressures applied to the surfaces 6 and 8.
Figure 1 is a fragmentary side View of a brake
It is to be understood that I do not wish to be
rotor embodying my invention, the upper por
limited by the exact embodiment of the device
tion of Figure 1 being a sectional view taken in
shown which is merely by way of illustration and
the plane indicated by the line l-l of Figure
not limitation as various and other forms of the
2 and the lower portion of Figure 1 being a side
device will, of course, be apparent to those skilled
elevation.
in the art without departing from the spirit of
Figure 2 is a composite view, the top half
the invention Or the scope of the claims.
thereof being an edge elevation taken from the 30 I claim:
right as seen in Figure 1 and the bottom half
1. In a brake rotor, a brake ring comprising a
thereof being a sectional view taken on the line
pair of spaced annular plates de?ning a ?uid
indicated by the line 2--2 of Figure 1.
chamber therebetween, and Y-shaped blades ex
Describing my invention in detail, the rotor
tending between said plates, and a hub member
comprises a pair of spaced annular plates 2 and 35 connected to the radially inner extremities of
4, presenting friction faces 6 and B, respectively,
said blades at the juncture of the fork of each
,on their remote surfaces. Extending between
Y with the leg thereof, each blade extending ra
the plates 2 and 4 are a plurality of blades gen
dially inwardly with respect to the inner perim
erally designated l0, Hi. It will be understood
eters of said plates to form gussets merging with
that the plates 2 and 4 de?ne a fluid chamber 40 said hub member to reinforce its connection with
I2 therebetween, the blades I 0, ill functioning
said blades.
to throw ?uid radially outwardly from the cham
2. In a brake rotor, a pair of spaced annular
ber l2 during rotation of the rotor, ?uid being
friction plates, U-shaped blades alternately con- I
drawn into the chamber l2 at opposite sides of
nected to respective plates, each of said blades
the hub member M, as will be clearly understood
having its spaced legs joining the associated
by those skilled in the art.
plate,’ other blades alternately connected to re
The hub member I4 is a generally bell-shaped
spective plates, each of said other blades being
member comprising on its inner perimeter the
connected to the adjacent U-shaped blade, a sup
bore l6 adapted for the reception of a portion of
port hub connected to the radially inner extrem
a rotating element, such as the wheel of a wheel
ities of said blades at the juncture of‘ said U
and axle assembly, to which the rotor is at
shaped blades with said other blades, and gus
tached by means extending through openings l8,
sets integrally formed with said blades: at their
l8 through the hub member I 4. The member 14
radially inner extremities and merging with said
is connected at its outer perimeter to the blades
hub.
l0, l0; and it may be noted that each blade l0 65
3. In a brake rotor, a pair of spaced annular
2,411,067
3
nected to respective plates, each of said blades
having its spaced legs joining the associated
plate, other blades alternately connected to re
spective plates, each of said other blades being
connected to the adjacent U-shaped blade and
lying in a. plane substantially. paralleLto the
spaced legs thereof, and a support hub connected
4
spaced relationship thereto and connected to
friction plates, U-shaped blades alternately con- '
each column at the juncture of the fork of the
Y thereof with the leg of said Y.
8. In a brake rotor, a brake ring comprising
a pair of spaced plates de?ning a ?uid chamber
, therebetween, fluid inlet means disposed inward
to the radially inner extremities of said blades
at the juncture of said U-shaped blades with, ,.10.
said other blades.
4. In a brake rotor, a pair of spaced annular‘ '
ly ofmthe; inneriperimeter of, said ring_and com
municatingfwith said'chamber, ‘means for cir
culating fluid from said inlet means and radially
outwardly between said plates from the outer
perimeter of said chamber, said means compris
ingi Y-shaped blades extending between said
plates, and support means for said rotor com
prising a support member connected to each
nected to respective plates,.ea'chl of. said‘ blades
having its spaced legs joining the associated plate, 15 blade at the juncture of the fork of the Y thereof
friction plates, U-shaped blades alternately con
other blades alternately connected to respective
plates, each of said other blades being‘ connected
with the leg of said Y.
_
9." In a- brake rotor, a brake ring comprising a
plurality of spaced annular plates, blades ex
tending between said plates, said blades being of
of disposed between said plates in spaced rela-, 20 Y shape, and a support member connected to
each blade at the junctureof the fork of the Y
tion thereto and'connected'to the radially, inner’
thereof with‘ the leg of said Y.
'
extremities of said blades.
10. In a brake rotor, a pair of spaced annular
5._ In a brake rotor, a, brake ring comprising,
plates, Y-shaped blades extending between said
spaced plates'with friction surfaces on their re
to the adjacent U-shaped blade, and ‘Ian ‘annu
lar support hub having the outer perimeter there
mote sides, Y-shapecl blades extending between 25 plates, each of said blades being reverselyarQ
ranged with respect to the blades on opposite
said plates, and a support'member connected to
each blade at the juncture of the fork of the -Y
thereof with the leg-of said Y.
6‘. Ina brake rotor, a brake ring comprising a
pair of spaced annular plates de?ning a ?uid
chamber therebetween, and Y-shaped blades ex‘
tending between said plates, andv a hub member
connected to the radially inner extremities. of
said’blades at the juncture of- the fork of each Y
with the-leg thereof.
_ '
'
'
7. ‘In a brake rotor; a brake lring‘ comprising
spaced plates, brace means between said plates
and ‘connected thereto for resisting braking pres,
sures' applied to the remote surfaces of ' said
plates, said brace means‘ comprising Y-shaped’
columns extending between the plates, and a
support member extending between the plates in
sides thereof, and a Support member connected
to‘ the radially inner extremities of said blades
at the‘jun'cture of the fork of the Y thereof'with
the leg of said Y.
'
y‘
p
-,
f "'
ii. ‘In a brake rotor, a pair‘of spaced annular
plates, Y-shaped blades extending between said
plates, each of said blades being reversely ar
ranged with ‘respect to the blades on opposite
sides thereof, a support member ‘connected’to the
radially inner extremities of said blades-at the
juncture of the fork of the Y thereof with the leg
of said Y, andgussets integrally formed; with‘,
said blades‘ at their radially inner extremities
and merging with said support member.
CARL ,‘TAGKI
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