IMPROVEMENTS IN JOURNAL BEARINGS
Year: 1885

page_text: I, JOHN NEWTON WILLIAMS of New York in the County of New York and
State of New York, United States of America, Manufacturer, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN JOURNAL BEARINGS"
to be as follows:-
This Invention relates to improvements upon the ordinary method or means for
placing a shaft in or removing it from two fixed bearings or closed boxes.
Usually
in such cases one of the shaft bearings is of such larger diameter as that after one
end of the shaft is placed within the same the shaft may be turned in such a way
as that the remaining or opposite end may be placed within its bearings. The
space between the end of the shaft and the larger bearing is then 'taken up by a
bushing inserted from the outer side, the said bushing being keyed or suitably
secured within the bearing.
My improvement consists in providing means whereby a shaft can be readily
inserted or removed from fixed bearings or closed boxes obviating the necessity of
using a bushing adjusted from the outside of the bearings, and requiring a key, set
screw or other suitable device to secure it in place.
To this end I employ a self centring device constructed as follows:
On the end of the shaft which is to be adjusted within the larger bearing is
placed a frusto-conical collar or bushing, bored axially for the reception of the
shaft. Some distance from the end of the shaft and secured to or formed with it
is a stationary collar or hub or a wheel between which and the frusto-conical
bushing is placed a bar, plate, or other spring which tends to force the bushing
into the bearing.
When a bar or plate-spring is employed it may be bent so as to bear against the
periphery of the wheel and as the said wheel is keyed or fixed to the shaft the
tendency of the spring will be to force the shaft into its bearing at one end and
the bushing into its bearing at the other. At the same time the spring will
provide a friction brake for the wheel valuable in case any motion of the said
wheel is to be prevented after the driving force has been withdrawn.
Instead of such an arrangement however as before stated a collar cast or fixed on
the shaft or adjustable thereon by set screws may be employed. When a fixed
collar is used a spiral spring is preferably employed between it and the bushing for

page_text: forcing collar and bushing apart, while with an adjustable collar the spring may be
entirely omitted the said collar being adjusted to bear closely on the face of the
bushing whenever the shaft and bushing are placed in position.
To insert the shaft the collar or bushing is placed upon one end of it and the
said end with the collar or bushing inserted in the bearing, small end first, after
which the shaft is moved laterally and the opposite end of it is adjusted in its
bearing in the corresponding standard or pillar block. The tapered or conical form
of the bushing permits the movement of the shaft laterally or radially to a
sufficient extent to allow its end to be inserted in or removed from the bearing
while at the same time automatically centring the bearing by the action of the
spring as soon as in position. The shape of the bushing also adapts it to
automatically adjust itself to alignment with the shaft, notwithstanding any
irregularities in the shaft bushing or bearing. The shaft is kept in place by
means of the spring forcing apart the bushing and the wheel or collar on the shaft.
When it is desired to take out the shaft it may be moved endwise towards one
standard. The end opposite that standard is then withdrawn from its bearings
and the necessary radial motion to remove the shaft is then permitted by the
conical form of the bushing.

page_text: COMPLETE SPECIFICATION.
I, JOHN NEWTON WILLIAMS of New York in the County of New York and
State of New York, United States of America, Manufacturer, do hereby declare
the nature of the said invention for "IMPROVEMENTS IN JOURNAL BEARINGS"
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
This invention relates to improvements upon the ordinary method or means for
placing a shaft in or removing it from two fixed bearings or closed boxes. Usually
in such cases one of the shaft bearings is of such larger diameter as that after one
end of the shaft is placed within the same the shaft may be turned in such a way:
as that the remaining or opposite end may be placed within its bearings. The space
between the end of the shaft and the larger bearing is then taken up by a bushing
inserted from the outer side, the said bushing being keyed or suitably secured
within the bearing.
My improvement consists in providing means whereby a shaft can be readily
inserted or removed from fixed bearings or closed boxes obviating the necessity of
using a bushing adjusted from the outside of the bearings, and requiring a key, set
screw or other suitable device to secure it in place.
To this end I employ a self centring device constructed as follows:-
On the end of the shaft which is to be adjusted within the larger bearing is
placed a frusto-conical collar or bushing bored axially for the reception of the shaft.
Some distance from the end of the shaft and secured to or formed with it is a.
stationary collar or hub, or a wheel, between which and the frusto-conical bushing
is placed a bar, plate or other spring which tends to force the bushing into the
bearing.
In the accompanying drawings,-
Figure 1, is a front elevation with the pillar blocks or standards cut away to
show the cone-shaped bushing or collar.
Figure 2, is a similar view showing the shaft being placed in or removed from
its journals.
Figure 3, is a modified form showing a spiral spring interposed between the
collar and bushing,
A, represents the shaft which may be provided with the wheel a, secured at any
desired position on it.
B, is a standard or pillar block having a bearing b. A frusto-conical collar or
bushing C, is placed loosely upon the end c, of the shaft A.
A spring D, secured at one end to the frame or base plate E, or other part is
interposed between the wheel a, and the collar or bushing C, as shown in figs 1,
and 2.
When a bar or plate spring is employed as here shown, it may be bent so as to
bear against the periphery of the wheel a, and as the said wheel is keyed or fixed
to the shaft the tendency of the spring will be to force the shaft into its bearing
at one end and the bushing C, into its bearing at the other. At the same time it
will be observed that the spring D, will provide a friction brake for the wheel a,
valuable in case any motion of the said wheel is to be prevented after the driving
force has been withdrawn.
i

page_text: Instead of such an arrangement however, as before stated a collar c¹, cast or
fixed on the shaft A, or adjustable thereon by set-screws as shown in figure 3, may
be employed. When a fixed collar is used a spiral spring d, is preferably employed
between it and the bushing C, for forcing collar and bushing apart while with an
adjustable collar the spring may be entirely omitted, the said collar being adjusted
to bear closely on the face of the bushing whenever the shaft and bushing are
placed in position.
To insert the shaft A, the collar or bushing C, is placed upon the end c, of it and
the said end with the collar or bushing is inserted in the bearing b, small end first
after which the shaft A, is moved laterally and the opposite end of it is adjusted in
its bearing in the corresponding standard or pillar-block. The tapered or conical
form of the hushing C, permits the movement of the shaft laterally or radially to a
sufficient extent to allow its end to be inserted in or removed from the bearing b,
while at the same time automatically centring the bearing by the action of the
spring D (or d) as soon as in position. The shape of the bushing also adapts it to
automatically adjust itself to alignment with the shaft, notwithstanding any
irregularities in the shaft, bushing, or bearing. The shaft is kept in place by
means of the spring forcing apart the bushing and the wheel or collar on the shaft.
When it is desired to take out the shaft it may be moved endwise towards the
standard B, The end opposite that standard is then withdrawn from its bearings,
as shown in figure 2, and the necessary radial motion to remove the shaft is then
permitted by the conical form of the bushing C.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
J
"
1. In combination with a shaft, a fixed hanger or, box having a bearing of
greater diameter than said shaft, and a movable collar or bushing having an axial
bearing for said shaft and tapered externally substantially as and for the purpose
set forth.
2. In combination with a shaft and fixed bearings therefor of greater diameter
than said shaft, a tapering collar or bushing on said shaft and a spring adapted to
press it to its bearing substantially. as set forth.
3. In combination with a shaft, a wheel thereon, fixed bearings for said shaft of
greater diameter, than the same, a tapering collar or bushing on said shaft and a
spring bearing between said wheel and bushing substantially as and for the
purposes set forth.
4. The combination of the shaft suitably supported at one end and at the other
end provided with a collar attached thereto, with the standard, the cone shaped.
bushing and the interposed spring which bears against the collar and bushing as
and for the purposes set forth.
Deted thin with don of Man. 100%