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Патент USA US2124786

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July 26, 1938.
L.. E. LA BRIE
2,124,786
BRAKE
Original Filed Sept. l2, 1935
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7:76.63
IN VEN TOR.
A_TToRNEYs.
2,124,786
Patented July 26, 1938
UNITED STATES
PATENT OFFICE
5.1mm
BRAKE
Ludger E. La Brie, Detroit, Mich., aldgncr to
'Bendix Aviation Corporation. South Bend,
Ind., a corporation o! Delaware
original »13pm-aum semi.” iz, 193s, semi
No. 40,291. Patent No. 2,102,852, dated De
eember 2l, 1937. Divided and this applica
tion May 5, 1937, Serial N0. 140.898
2 Claims. (Ul. lll-79.5)
’I‘his invention relates to brakes, and is illus
trated as embodied in internal expanding auto
Member ||l is shown centrally formed with a
worm wheel ||0 meshing with and driven by a
mobile brakes of the shiitable anchorage type.
An object of the invention is to provide novel
and improved positioning means for the brake
worm-formed on a cross shaft IIB, iioating with
shoes or their equivalents.
This means is in
tended to be carried by the backing plate of the
the above-described adjustable joint, and the end
of which extends outside the backing plate and is
there formed to be grasped by a wrench. Shaft
Ill is journaled in two end plates |20, slotted to
brake, and preferably includes centering springs
be mounted on the reduced-diameter ends of the
acting on a laterally projecting part carried by
pivots ||2 and held by a clamp bolt |22 (Figure 4)
and spacer sleeve |24 mounted thereon between 10
the end plates.
Shaft lll is yieldingly held in place by a spring
|20, contlned between the outer end plate |20 and
a snap-ring in the end oi the shaft, the spring
urging the shaft upwardly in Figure 4 until a 15
snap-ring |20 carried by the shaft engages the
second end plate |20. 'I'he shaft IIB also carries
a washer |30 covering an enlarged opening in the
the shoes, and which is shown as part of an
adjustment connecting the shoes.
Other objects and features, including various
novel combinations of parts and desirable par
ticular constructions, will be apparent from the
following description of the illustrative embodi
ments shown in the accompanying drawing, in
which:
'
Figure 1 is a partial vertical section through the
brake, just inside the head of the brake drum, ' backing plate through which the shaft projects.
The end plates |20 are also formed with open 20
with the brake shoes shown in side elevation:
Figure 2 is a partial section on the line 2-2 of ings recelving lugs formed on two washers |32
Figure 1, showing an eccentric stop for one oi' mounted on the adjusting member ||4 on oppo
site sides of the worm wheel IIG. Two lugs on
the shoes;
Figure 3 is a partial section on the line 2-2 of these washers project some distance through the
Figure l, showing the adjusting and centering end plate, toward the backing plate 22, and form 25
part of a novel spring centering device. These
means;
Figure 4 is a. partial section through said means lugs |22 project between, and are engaged by
enlarged collars |32 on the ends of. stems or
on the line 4-4 of Figure l; and
Figure 5 is a section showing an alternative plungers III slidably mounted in guide sleeves |36.
Sleeves |30 are fixed in oppositely-facing sock 30
form of stop for the shoe.
The brake shown in Figure 1 includes a rotat
able pressed drum 20 (or the lined drum 2| shown
in section in Figure 4, and`described and claimed
`in my Patent No. 2,507,725, granted October 20,
l
l
1936) , at the open side of which is arranged a sup
port such as a stamped steel backing plate 22, and
within which is arranged the friction means of
the brake. The illustrated friction means in
cludes a pair or floating shoes 2li and 2l of T
section, each having a central stiiïening web and
a cylindrical outer rim faced with brake lining.
The brake is applied by means, and has an
anchorage, shown and claimed in my Patent No.
2,044,990, granted June 23, 1936, of which my
4 5 application No. 40,291 was a partial continuation.
The present application is a division of said
application No. 40,291.
In the brake illustrated, the shoes have at their
lower ends sockets |00 formed by registering
grooves in stamplngs IIB spotwelded or otherwise
secured to the webs of the shoes. Stampings ||0
also ca_rry transverse pivots ||2 having central
threaded openings adjustably receiving oppo
sitely-extending right-and-leit threaded stems
55 formed on an adjusting member III.
ets formed in a stamping |30 bolted or otherwise
flxedly mounted on the backing plate. Plungers
I“ are encircled by coil springs |40 confined
between the collars on the adjacent ends of the
plungers, and the bases ofthe sockets in the 35
stamping lll. Springs |40 are compressed suffi
ciently so that, whenever the brake is released,
they will act through plungers |34 on the lugs |32
to center the shoes.
Shoe 20 is shown positioned in part by a web 40
engaging extension 'l2 on an eccentric ‘lll adjust
able from outside the backing plate locked by nut
‘Il and carrying a rim-engaging roller 18. Alter
natively the shoe rim could be engaged by the end
of a right-angle stop 00 (Figure 5) adjustably 45
clamped in a slot l2 by means such as a nut B6.
While one illustrative embodiment has been
described in detail, it is not my intention to limit
the scope of my invention to that particular
embodiment, or otherwise than by the terms of 50
the appended claims.
I claim:
i. A brake comprising friction members having
an adjustable connection therebetween, spaced
washers having laterally-projecting parts form 55
ensues
mounted opposite the connection und provided
with oppositely-tscing sockets between which
said parts are arranged. and spring-pressed
ward each other. luide sleeves iixed in the outer
ends ot ssid sockets. plungers slidsbly arranged in
the sleeves snd formed with collars et their mijn-V
cent ends, and coil springs sleeved on the plungers
plunlers in ssid sockets and acting on ssid ports
and sleeves and coniined between the collars and 5
tocenterthe brake.
the outer ends of the sockets. ~
lng psrt oi’ seid connection, s device nxedly
'
'
2. A broke centeringr device comprising s
stamping formed with aligned sockets facing to
_ GERTIFIGATE
LUDGER E. LA BRIE.
0F CORRECTION.
July 26, 1958.
Patent Np. 2,12157'86.
LUDGER E.
IA
BRIE.
‘
It is hereby certified that error appears in the printed specification
of the above numbered potent requiring correction es follows: Page 1 , first
column, line 5h, for the patent number "2,507,725" reed 2,05'h725; ondthst
the said Lettere Patent should be rend with this correction therein that
the same muy conform tothe record of the cese in the Patent Office.
Signed end sealed this 15th dey of August, A. D. 1959.
Leslie Frazer
(Seal)
Acting Oomissioner of Patents.
ensues
mounted opposite the connection und provided
with oppositely-tscing sockets between which
said parts are arranged. and spring-pressed
ward each other. luide sleeves iixed in the outer
ends ot ssid sockets. plungers slidsbly arranged in
the sleeves snd formed with collars et their mijn-V
cent ends, and coil springs sleeved on the plungers
plunlers in ssid sockets and acting on ssid ports
and sleeves and coniined between the collars and 5
tocenterthe brake.
the outer ends of the sockets. ~
lng psrt oi’ seid connection, s device nxedly
'
'
2. A broke centeringr device comprising s
stamping formed with aligned sockets facing to
_ GERTIFIGATE
LUDGER E. LA BRIE.
0F CORRECTION.
July 26, 1958.
Patent Np. 2,12157'86.
LUDGER E.
IA
BRIE.
‘
It is hereby certified that error appears in the printed specification
of the above numbered potent requiring correction es follows: Page 1 , first
column, line 5h, for the patent number "2,507,725" reed 2,05'h725; ondthst
the said Lettere Patent should be rend with this correction therein that
the same muy conform tothe record of the cese in the Patent Office.
Signed end sealed this 15th dey of August, A. D. 1959.
Leslie Frazer
(Seal)
Acting Oomissioner of Patents.
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