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Патент USA US2128980

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Sept' 6, 1938,
‘
,
A. ANDERTON '
2,128,980
AUTOMATIC CENTRIFUGAL CLUTCH 0R BRAKE
Filed Aug. 5, 1937
2 Sheets-Sheet l
Sept. 6, 19380
2911 2&98@
A. ANDERTON
AUTOMATIC CENTRIFUGAL CLUTdH OR BRAKE
Filed Aug. 3, 1,937
2 ‘Sheets-Sheet 2
Patented Sept. 6, 1938
2,128,98t
UNHTED STATES PATENT OFEECE
2,128,980
AUTOMATIC CENTRIFUGAL CLUTCH O-R
BRAK E
Alfred Anderton, Castleton, near Manchester,
England
'
Application August 3, 1937, Serial No. 157,079%
In Great Britain September 18, 1936
This invention relates to friction‘ clutches or
(Cl. 192-105)
pockets into which the driving shoes are placed
brakes of the automatic centrifugal type, in which
thus ensuring that same revolve with the boss a,
2 Claims.
a driving boss carries shoes, which contact under . lugs or ears i are also provided on boss 0, which
centrifugal action with a driven member, and has
for its principal object the provision of an im
proved clutch of this type.
A further object of the invention is to provide
means for holding the shoes out of engagement
below a predetermined speed.
In the ‘accompanying drawings—
Figure 1 is a front View of one form of the im~
proved clutch half of which is shown with the
front ?ange removed; Fig. 2 shows the clutch in
section as arranged for connecting two shaft
15 ends, the section being taken on the line 2—2 of
Fig. 1.
as shown in Figs. 4 and 5, may also be used as
driving lugs if desired, in which case, lugs It
will not be required. It will readily be seen that
the spring loaded bolts 01 may be adjusted so as
to hold the driving shoes 1‘ out of engagement with
the driven member is until a desired speed is at
tained by the driving shaft b, after which they
will move radially outward sliding up the conical
surfaces 9, the ?ange e moving slightly axially
outward, driving connection being thereby ob- '
tained.
'
Fig. 3 is a perspective view of the boss and con
nected parts.
.
Fig. 4 is a similar View to Fig. 1 illustrating a
20 modi?cation, parts of the device being omitted,
and
are drilled to receive the spring loaded bolts 03;
these lugs or ears, by slightly altering the design
,
Fig. 5 is section taken on the line 5—-5 of Fig. 4.
The constructional details and form may be
Varied from those described and illustrated, with,
The driven member 70 may be combined
with a pulley or wheel or may be arranged as a
?xed member, should it be desired to use the
clutch as a ‘centrifugal brake.
20
I claim:
1. A centrifugal clutch comprising a driving
member and a driven member, shoes carried by
the'driving member, ?anges mounted on the driv
ing member coaxial thereto, one of said ?anges
25 out departing from the invention.
being spring controlled the shoes being clamped
The driving boss a is keyed to the driving shaft
1) and may be cast integral with a ?ange c, this
flange 0 being provided with holes to receive the
heads of the spring loaded bolts d. A ?ange e is
30 loosely mounted on boss at and held in position by
the spring loaded bolts 01. The driving shoes 1‘
are usually lined with a friction material 7‘ and
between said ?anges so as to be held out of en
gagement with the driven member below a pre
are provided with a groove at each side of suitable
V-section forming conical surfaces, and are
35 clamped between the ?anges c and e under pres
sure of the spring loaded bolts d, both these
?anges having conical surfaces'g at their periph
ery which fit into the V-grooves in the driving
shoes 7‘. On reference to Fig. 1 it will be seen that
40 the driving boss (1 is provided with a number of
driving lugs h according to the number of driv
ing shoes used (four being shown), these form
determined speed of the clutch, and said ?anges
having conical surfaces adapted to engage coned
30
surfaces formed on both sides of each shoe.
2. A centrifugal clutch comprising a driving
member and a driven member provided with a
driving boss, shoes carried by the driving member,
a ?ange mounted fast on the driving boss, holes
in said ?ange, a second ?ange loosely mounted on 35
the driving boss and held in position by spring
loaded bolts the heads of which are located in
the ?rst mentioned ?ange, conical surfaces pro
vided on said ?anges and coned surfaces formed
on both sides of each shoe to co-operate there 40
with.
'
ALFRED ANDERTON.
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