Year: 1886

page_text: Date of Application, 12th Aug., 1886.
Complete Left, 12th May, 1887.
Complete Accepted, 17th June, 1887.
I, JOHN PLATT, of 41 Market Street, Stalybridge in the County of Lancaster,
Complete House Furnisher do hereby declare the nature of this invention to be as
follows:-
My invention relates to bearings for shafts and axles and my improvements have
for their object to prevent the heating and galling of bearings and to reduce friction
and wear, and consist mainly in arranging the brasses or bushes within which the
shaft rotates so that they can also rotate within the pedestals, hangers or boxes,
combined with arrangements for lubricating the rubbing surfaces.
I use in the length of the bearing one or more bushes turned outside as well as
bored inside and bore out the pedestal or equivalent part so that the bush or bushes
fit easily into it. On the bushes projecting collars or flanges may be turned to dip into an
oil reservoir formed in the lower part of the pedestal or equivalent part, or hoops may
be placed on the shaft for this purpose if two or more bushes are used, this device
being similar to that frequently used for lubricating shaft necks. The collars or hoops
carry up the oil, which is taken off by a stripper and flows on to the top of the bushes,
which are perforated with holes to allow the lubricant to flow upon the shaft. The
bushes are held in their places by collars formed on them running in recesses of the
pedestal or equivalent part, or by internally projecting rims or flanges formed on or
fastened to the pedestal or equivalent part for this purpose. These rims or flanges
may be made of horse shoe shape open at the bottom or in the direction in which the
wear takes place. The bottom plate of the pedestal or equivalent part is formed with
dishes for catching the oil issuing at the end of the bearing and passages are formed
for returning it to the reservoir. Each bush may be made in one piece or in halves
fitted together.
If the shaft becomes hot in the bearing or is insufficiently lubricated, it seizes the
bush and carries it round in the pedestal or equivalent part till the shaft becomes cool
again. As this action takes place alternately in very short intervals, the bush will
make an apparently continuous rotation and the wear inside the bush will be reduced
correspondingly to the reduction of the number of revolutions of the shaft inside the
bush.

page_text: I, JOHN PLATT of 41 Market Street, Stalybridge in the County of Lancaster,
Complete House Furnisher do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
My invention relates to bearings for shafts and axles and my improvements have:
for their object to reduce the friction and prevent the heating and galling of bearings
and consist mainly in arranging the brasses or bushes within which the shaft rotates
so that they can also rotate within the pedestals, hangers or boxes, combined with
arrangements for lubricating the rubbing surfaces.
I use in the length of the bearing two bushes turned outside as well as bored inside
and bore out the pedestal, hanger or box so that the bushes fit easily into them.
Instead of fitting directly into the pedestal or equivalent part, the bushes may be
supported in brasses fitted into the pedestal or equivalent part and bored out for the
bushes to run in. A hoop is placed upon the shaft dipping into an oil reservoir
formed in the lower part of the pedestal or equivalent part, this arrangement being
similar to the device for lubrication frequently used in mill machinery. The oil is
carried up by the collar and taken off by a stripper and flows on to the top of the
bushes, lubricating them outside, and the bushes are perforated with holes to allow
the lubricant to flow upon the shaft. The bushes are held in their places by collars
formed on them running in recesses of the pedestal or equivalent part, or internally
projecting rims or flanges may be formed on or fastened to the latter for this purpose.
These rims or flanges may be made of horse shoe shape open at the bottom or in the
direction in which the wear takes place. The bottom plate of the pedestal or equivalent
part is formed with dishes at the ends of the bearing for catching the oil and passages
are formed for returning it to the reservoir. The bushes may be made in one piece
or in halves.
In order that my invention may be readily ascertained and carried into effect, I
have hereunto appended a sheet of drawings marked with letters of reference.
Figure 1 shows a longitudinal section and fig. 2 and end view of a pedestal fitted
with my improvements.
The bushes a and b fig. 1 are bored for the shaft c and turned outside, the pedestal e
and cap f being bored out for them to turn in. g is the collar placed on the shaft for
lubricating the bearing, h the stripper for taking off the oil, the oil reservoir and
kk the passages for returning the oil issuing from the ends of the bearing. The bushes
are perforated with holes dd for the passage of the lubricant to the inside and are held
in their places by the rims or lips cast with the cap and pedestal and of horse
shoe shape as shewn in order not to wear as the bushes become worn by the shaft.
Instead of being cast on, a loose horse shoe shaped rim may be fixed to the pedestal
or cap by screws.

page_text: The bushes being loose are free to rotate with the shaft if the friction inside the
bearing becomes greater than outside and the internal wear of the bush and friction
will be reduced correspondingly with the reduced number of revolutions of the shaft
inside the bush. If the shaft becomes hot in the bearing or is insufficiently lubricated,
it seizes the bush and carries it round in the pedestal or equivalent part till the shaft
becomes cool again. As this action alternates in very short intervals, the bush will
make an apparently continuous rotation.
In some cases I place a second bush upon the outside of the bush next to the shaft
and bore out the pedestal or equivalent part so that the second bush can rotate in it
and the inner bush rotate in the outer one, whereby the relative speed of the parts and
friction may be further reduced.
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
Firstly. In bearings for shafts and axles arranging the bushes or brasses so that
they can turn in the pedestal hanger or box substantially as herein before described.
Secondly. In combination with bushes or brasses for bearings of shafts and axles
arranged so that they can turn in the pedestal or equivalent part, the arrangements
for lubricating them externally and internally, substantially as herein before described
and illustrated by the drawings.