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Патент USA US2068959

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2 6.., 9 3 7.
1‘.
2,068,959
M. W. MOCONKEY
BRA KE
Filed‘ Jan. 21, 1955
‘
'
2,068,959
j Patented Jan. 26, 1937 I
UNITED STATES * PATENT. * OFFICE “ '
BRAKE
Montgomery W. McConkey, South Bend,vlnd.,
" assignor to Bendix Brake Company, South
Bend, lnd., a corporation of Illinois
-
Application January 21, 1935,~Serial No. 2,652
5 Claims. (Cl. 188-78)
This invention relates to brakes, and is illus
' trated as embodied in' an internal expanding
brake for an automobile.
'
An object of the invention is to utilize, in form
5 ing the shoes of the brake, rolled angle-section
steel, cut and formed in segments adapted to have
the brake lining secured thereto. Preferably
these segments are cut from a rolled T-section
actuated by thecam 30 and the center shoe 9|
actuated by the end shoe 92.
'
_
Each of the shoes illustrated has a body portion
formed of an arcuate segment of rolled T-section
steel, having its sti?ening web>26 arranged sub- ‘
stantially in its center line. These segments are
preferably cut from a rolled T section ring, as
described‘ in ‘my Patent No. 1,875,081, dated August
30, 1932. However, many of the advantages of
steel ring, although many of the advantages of
10 the invention can be secured by forming'into vmy invention can be secured by bending into arc 10
arcuate segments pieces cut from a straight. rolled' uate segments, of the sort illustrated, straight
pieces-of rolled angle-section‘ steel.
>
,
angle-section, preferably of T-gsection. Each of the end shoes 90 and 92 has arranged
One feature of the invention relates to provid
, ing a shoe formed of such a segment with sepa— ‘at its lower end, and preferably welded or oth
15 rately-formed anchor-engaging means, such as a erwise permanently secured thereto, a ?tting 15'
?tting shown as comprising two stampings per-, " shown as consisting of two steel stampings 96 and
manently secured to the opposite sides of the web‘
of the shoe.‘
Where used‘ in an overlapping shoe brake, as
20‘ illustrated, the anchor stampings of one shoe are
de?ected into engagement, and preferably welded
or otherwise secured together to form a double
25
thickness strong anchor arm, while those of the
adjacent shoe are spread apart to form-fa pair of
spaced arms straddling the double-thickness arm.
The above and other objects and features of
the invention, including various novel combina
tions of parts and desirable particular construc
tions, will be apparent 'from the following de
30 scription of the illustrative embodiment shown ‘in
the accompanying drawing, in which:
.
Figure 1 is a vertical section through the brake,
just inside the head of the brake drum, and show
ing the brake shoes inside elevation;
Figure 2 is a bottom plan view of the lower end
35
of one of the two end shoes of the brake;
"Figure 3 is a similar plan view of the end .of
the center shoe;
,
Figure 4 is a section on the line l-l of Figure
40 1 and shows the manner of connecting two of the
shoes; and
I
Figure 5 is a section on the line 5-5 of Figure
1 ‘showing the manner of anchoring two. of the
.45
shoes.
'
a
_
The illustrated brake comprises a drum ‘2 ro~
tating with the wheel (not shown), at the open
side of which is arranged a support such as a
backing plate 46. I The brake is provided with
50 any suitable return springs, steady rests, stops,
_
98 engaging the opposite sides of the web 26 and
formed at their ends with coaxial integral bear
ing sleeves adapted to embrace a pivot.
The ?ttings of shoe 82 straddle the end of the 20
web of shoe 94 and areconnected thereto by av
?oating pivot 82. The ?ttings of shoe 9!] are
mounted on a ?xed anchor pivot 18 carried by
the backing plate 46. ‘
Shoe 94 has at its end, and preferably welded 25
or otherwise permanently secured thereto, a ?t
ting consisting of two steel stampings I00 en
gaging the opposite sides of its web 26, and pref
erably de?ected intoengagement with each other
and welded or otherwise permanently secured to 30
, ‘gather to form a double-thickness anchor arm.
_
These ?tting members have at their ends in- ‘
tegral coaxial bearing sleeves'embracing an an
chor pivot 8|! carried by the backing plate. The
above-described double-thickness arm I00 is strad
dled by ‘the parts 96 and 98 of shoe 90. The
anchor 80 passes through slots 91 invthe members
98 and 98, and the anchor 18 passes through a
similar slot 99 in the members "III, as is usual in
three-shoe brakes of the type illustrated.‘
40
While one illustrative embodiment has been
described in detail, it is not my intention to limit
the, scope of the invention to that particular em
bodiment, or otherwise than by the terms of the
appended. claims. This application is contin a 4-5
tion in part of my ‘Patent No. 1,875,081 dated
August 30, 1932.
v
1. A brake shoe having a stiii'ening web,incom->
and the like (not shown), and with operating
bination with a pair of separate parts secured to
opposite sides of said web at its end and projecting
means illustrated-as a double cam 30.
beyond said end and de?ected into engagement
'
50
The illustrated brake is of the three-shoe type. \ with each other to form a double-thickness pivot
Twoend shoes BI! and 92, and a center shoe 84,
are arranged end to end, with shoes II and 92
arm
' 2.’A brake comprising a pair of shoes, each in
-
as
v ,
'
2
2,068,959
eluding an arcuate angle-section segment having a
eluding an angle-section segment having a stir!
ening web, and one having arranged at the oppo
stiifening web, and one having centrally-arranged
separately-formed anehor-engasins means se
site sides of said web at the endof the shoe a pair
cured to the end of its web and projecting beyond ' of stamped parts projecting beyond the end of
the end of- said web, and the other having secured said web and formed to straddle a pair of sepa
to and projecting beyond the end 01' its web a pair rately-i'ormed anchor parts secured to the web of
of separately-formed anchor parts straddling said
means.
‘
the other shoe and projecting beyond the end
'
3; A brake comprising a pair of shoes, each
including an arcuate angle-section segment hav
ing a sti?ening web, ,and'one having a pair of
anchor-engaging members secured to the opposite
sides of the end 01' its web and de?ected into en
gagement with each other and projecting in the
central plane oi’ the shoe beyond the end or said
web, and the other having secured to and project
ing beyond the end of its web a pair of separately
formed anchor parts straddling said means.
4. A brake comprising a pair of shoes, each in
thereof.
5. A brake comprising a pair of shoes, each in
cluding an arcuate T-‘section segment, the stem 10
of the T forming a sti?ening web, one shoe having
permanently secured to the opposite sides‘ of its
web at its end a pair or separate parts project
ing beyond said end as spaced-apart and substan
tially parallel pivot arms. ' and the other shoe 15
having a pair of separate anchor parts secured to
its web and projecting beyond the end theme!’ to
be received between said arms.
1
MONTGOMERY W. MCCONKEY.
omen-rears or commoner;
’ Patent No. 2,068,959
26-, 1957.
someones! w. neconm;
Itis hereb'y certified that error appears injthe printed specification~
ofthe above numbered patent requiring correction as follows : Page 1, second
column, line 19, claim 1, strike-out "having! and insert instead- as words
couprisinganareuate integral T-section segnent?zhe stem of the "1', form;
ing; andthat the said Letters Patent 'ehouldbe read with this correction‘
therein that the some may conform to the record of the case in the'Patent
Office.
Signed and sealed this 25th day of Jarmary,-' A. n.'_1938.
(Seal)
Henry Van lu-sdsls,
, Acting Go-iissi'oner of Patents.»
'
2
2,068,959
eluding an arcuate angle-section segment having a
eluding an angle-section segment having a stir!
ening web, and one having arranged at the oppo
stiifening web, and one having centrally-arranged
separately-formed anehor-engasins means se
site sides of said web at the endof the shoe a pair
cured to the end of its web and projecting beyond ' of stamped parts projecting beyond the end of
the end of- said web, and the other having secured said web and formed to straddle a pair of sepa
to and projecting beyond the end 01' its web a pair rately-i'ormed anchor parts secured to the web of
of separately-formed anchor parts straddling said
means.
‘
the other shoe and projecting beyond the end
'
3; A brake comprising a pair of shoes, each
including an arcuate angle-section segment hav
ing a sti?ening web, ,and'one having a pair of
anchor-engaging members secured to the opposite
sides of the end 01' its web and de?ected into en
gagement with each other and projecting in the
central plane oi’ the shoe beyond the end or said
web, and the other having secured to and project
ing beyond the end of its web a pair of separately
formed anchor parts straddling said means.
4. A brake comprising a pair of shoes, each in
thereof.
5. A brake comprising a pair of shoes, each in
cluding an arcuate T-‘section segment, the stem 10
of the T forming a sti?ening web, one shoe having
permanently secured to the opposite sides‘ of its
web at its end a pair or separate parts project
ing beyond said end as spaced-apart and substan
tially parallel pivot arms. ' and the other shoe 15
having a pair of separate anchor parts secured to
its web and projecting beyond the end theme!’ to
be received between said arms.
1
MONTGOMERY W. MCCONKEY.
omen-rears or commoner;
’ Patent No. 2,068,959
26-, 1957.
someones! w. neconm;
Itis hereb'y certified that error appears injthe printed specification~
ofthe above numbered patent requiring correction as follows : Page 1, second
column, line 19, claim 1, strike-out "having! and insert instead- as words
couprisinganareuate integral T-section segnent?zhe stem of the "1', form;
ing; andthat the said Letters Patent 'ehouldbe read with this correction‘
therein that the some may conform to the record of the case in the'Patent
Office.
Signed and sealed this 25th day of Jarmary,-' A. n.'_1938.
(Seal)
Henry Van lu-sdsls,
, Acting Go-iissi'oner of Patents.»
'
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