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Патент USA US2134263

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Oct. 25, 1938.
J. REID
- 2,134,263
SUPPLEMENTARY SUPPORT FOR THE SHAFT OF POWER-DELIVERY BELT-PULLEYS
Filed Aug. 21, 1936
2 Sheets-Sheet 1 .
'
v
INVENTOR
JOHN REID
BY
Z
‘
'5 ‘-'ATTORNEY
Get. 25, 1938.
J. REID
'
7
2,134,263
SUPPLEMENTARY SUP‘PORT FOR THE SHAFT OF POWER-DELIVERY BELT'PULLEYS
Filed Aug. 21, 1936
2 Sheets-Sheet 2
VENTOR
'
JO
REID
ATTORNEY
2,134,263
Patented Oct. 25, 1938
UNITED STATES PATENT ‘(OFF WE,
j
2,134,263
> SUPPLEMENTARY
SUPPORT‘
FOR '
THE
SHAFT OF POWER-DELIVERY BELT-PUL
LEYS
John Reid, Oil City, Pa.
Application August 21, 1936, Serial Nb. 37,126;
' 1
(01. 208-18)
Claim.
This invention relates to a supplementary sup
port for the shaft of power-delivery belt-pulleys of
engines of various types; the embodiment of this
invention is herein shown and described as being
5 applied to the power-delivery side of the bed of
an internal combustion engine in axial alignment
with the adjacent crankshaft bearing of said, bed.
Briefly stated, the invention consists of a tubu
lar, extension bearing or quill which is ?rmly se
10 cured to and extends laterally from the bed of
the engine with its bore in axial alignment with
the axis of the crankshaft and through which
the adjacent end of said shaft extends, with its
outer extremity projecting therefrom.
15
The power-delivery pulley is mounted upon the
quill of said extension-bearing and has driving
connection with said projecting end of the crank
shaft.
‘
The objects attained by this invention are:
20
1. A better distribution of the strain caused
by the heavy tension of the power-delivery belt
and the removal of a material portion of such
strain from the adjacent bearing formed in the
engine bed.
25
'
2. Obviation of the necessity of an outboard
bearing, thus causing the engine to be a self-con
tained power unit.
3. An overhung pulley, which, by the dispens
ing with an outboard bearing, greatly facilitates
30 the, placing and the removal'of the power-delivery
belt.
4. A material reduction in the cost of setting up
the engine in its service position, because an out
board bearing is dispensed with.
35
5. A higher salvage value of the power plant
upon account of being a self-contained unit, the
diminished space which it occupies together with
a reduction of Weight, as compared with the
'40
outboard type of plant.
In the drawings:
Fig. 1 is a vertical section through one side of
the bed of an internal combustion engine at the
central point of the crankshaft bearing and said
tubular bearing, the adjacent portion of the
45 crankshaft being shown in elevation; the upper
half of the power-delivery pulley is also shown in
central vertical section, the lower portion be
ing omitted.
50
.
Fig. 2 is an end view of the outer end of the
power-delivery pulley and the driving plate
whereby the pulley is operably connected to said
crankshaft.
Fig. 3 is an illustration—elevation—of the outer
55 end of a power-delivery pulley, the construction
ofwhich is modi?ed for the ‘purpose of adapting
it for use on engines of high power capacity. _
Fig. '4 is a section on line IV—IV of Fig. 3 look—
ing inthe direction indicated by the arrow points.
Fig. .5 is aside elevation of that portion of an
engine bed adjacent the main bearing, together
with‘ said tubular bearing and the integrally
formed plate whereby said bearing is attached to
said bed.
-
e
' v
;
Fig. 6 is a projection of the adjacent portion of 103
Fig. 5, illustrative of one of the adjusting de
vices for said plate.
.
‘
_
Fig.7 7 is a section on line VII--VII of Fig. 5., ‘
Fig. 8 is an inner-face View of a detail termed’
the adjusting washer.
_
v
r
13
The embodiment of my inventive idea, as illus
trated in Figs. 1 and 2 of the accompanying draw
ings, is substantially as follows:
The bed ‘of an internal combustion engine is in- 1
dicatedby the numeral l ; the main bearing of said. 20
bed is indicated by the numeral 2; a crank is in-'
dicated by the numeral 3, and 4 is the crankshaft.
A horizontally-extending, tubular hub 5 and its
integral quill or barrel 8, is rigidly attached to the
outside ofsaid bed with the axis of the bore of said
quill in alignment with the axis of said main bear
ing: Said tubular hub is rigidly attached to said
2.5.i
b'ed by'm'eans‘of-the' plate 5_ when this supplemen
tary support is applied to small engines; but'when
applied to‘ enginesof largersize' and high power
rating, ‘the plate 5!, as‘shown ‘in Fig. 5, is .émg
ployed," and in the'manner hereinafter set forth.
As shown in Fig. 1 of the drawings a driving
pulley 1 is revolubly mounted upon the quill 8 of
said hub; said shaft 4 passes through the bore of 35
said quill and extends outwardly therefrom;
upon said outward extension is rigidly. secured
a driving plate 9, as by means of a key l0; driving
power is transmitted by said plate 9 to the pulley _
‘I, by means of the dowels II, one of which is 40
clearly shown in Fig. 4 of the drawings, the outer
ends of which appear in Fig. 3.
v
The drawings show an antifriction bearing l2
interposed between the periphery of said barrel
and the adjacent wall of the bore of the pulley, but 45
such a bearing, or any equivalent thereof, is ‘op
tional with the user and is not claimed as a
portion of this invention.
‘ -
'
The annulus I3, is supplied with a packing I4‘
for the purpose of retaining lubricant about the
bearings l2, also for excluding dust therefrom.
The construction thus far described, illustrated
in Figs. 1 and 2, relates to the simple essentials
5,0
of an embodiment of my invention as employed
in engines of comparatively small power rating; 55
2
2,184,263
owing, however, to the possibility that there may
be, in engines of higher power rating, a di?erence
in the degree of wear between the crankshaft and
its bearing 2 in the engine bed as compared with
its bearing in the bore of the tubular hub or quill
8, certain modi?ed details of construction are
employed whereby any consequently necessary
universally-radial-wise adjustment of said quill
relatively to said main bearing may be easily and
10 quickly made; said details of construction are il
lustrated in Figs. 4, 5, 6, '7 and 8.
Fig. 5 is a side elevation of a portion of an en
gine bed adjacent the crankshaft bearing, to
gether with its quill or tubular bearing 8 and its
15 attaching plate or ?ange 5', whereby said quill is
secured to said bed; as previously stated said
?ange 5’ is attached to the engine bed by means
the lower edge of the bed; the upper threaded end
of said jack occupies a tapped hole formed in the
bottom of said plate 5’ at the point 2 I.
Upon account of said universal adjustability 01'
said plate, conformably to the wear of said crank
shaft in bearing 2, provision is made for a slight
degree of differential movement between the driv
ing plate 9 and the pulley ‘I; said differential fea
ture appears in Fig. 4, in which it is shown that
there is a slight reduction between the largest di-‘ 10
ameter of dowel l l and the circumferential walls
of its socket l I’; in order to prevent, or at least to
reduce toga minimum, any backlash between pul
ley ‘I and said driving plate 5, which may be pos
sible upon account of said reduction in diameter
of said dowel, a spring-pocket 22 is formed
through said plate and extends coincidentally
of bolts or capscrews, and the holes 6' in ?ange ‘ into an adjacent spoke of said pulley; within said
pocket is inserted a ?at piece of spring steel 23
which overlaps the joint between said driving
radial-wise adjustability is provided for. For the plate and spoke and bears upon the bottom wall
purpose of causing said adjustment, a plurality of the pocket of both thereof; said plate is caused
of adjusting devices are provided; those adapted by means of a setscrew 24, to press ?rmly upon
said bottom walls, and to thereby reduce to a
for causing lateral adjustments consist of an an
25 nulus l5 which is provided upon its inner face with minimum any previously mentioned possible
5’ through which said screws pass are largerin
20 diameter than said screws, whereby universally
two oppositely-positioned contact-lugs IS; the
central opening in each of said annuli l5, I5, is
adapted for the free passage of a bolt I‘! there
througli, the inner end of said bolt being screw
30. threaded into a tapped hole in a suitable ?ange
I8 in the adjacent portion of said bed. Said an
nulus is functionally applied by placing the point
of one‘of said lugs H5 in contact with ?ange l8
and the other point IS in contact with the adja
35 cent edge of ?ange 5' with bolt 11 passing there
through; a plurality of said annuli are disposed
about the edge of said ?ange 5’. By loosening a
nut upon either of the bolts I1 and a compensative
tightening of the nut upon the oppositely po
sitioned bolt, such laterally-radial adjustment of
said plate 5' and its quill is caused as may be re
quired to re-position the axis of said quill in true
axial alignment with axis of the bearing in said
bed in the event of an unequal amount of wear in
backlash.
'
'
‘
.
‘ I claim the following:
A supplementary support for the shaft of pow
er-delivery belt—pulleys, comprising in combina
tion, a power-delivery shaft; a main bearing in 3O
which said shaft is mounted; a supplementary
tubular, extension bearing carried by the struc
ture in which said main bearing is formed, the
axis of the bore of said tubular structure being
in alignment with the axis of said main bearing,
and from the outer end of the bore of which tubu
lar structure said shaft projects, a power-delivery
belt-pulley revolubly mounted upon‘ the barrel
of said'tubular extension bearing, and from the
outer end ‘of which said'shaft projects, a driving 40?
plate for said pulley, mounted upon and keyed to
said‘ projecting end of said shaft, and driving
means connecting said plate to said pulley, said
driving means being adapted to conform to a
45 said bearings, so as to insure an equal distribution slight amount of radial-wise disalignment be 45
of the load of said shaft within each of said bear- . tween the axes of ‘said main bearing and the bore
ings. In addition to said annuli, an adjusting jack
is employed at the bottom of said plate whereby
direct vertically-radial adjustment is provided
50 for; said jack consists of a screw [9, the lower
end of which occupies a socket 20 in the ?ange at
of said tubular structure when said disalignment
is caused by an unequal amount of wear between
said bearings.
'
JOHN REID.
50
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