IMPROVEMENTS IN ROLLER BEARINGS
Year: 1879

page_text: LETTERS PATENT to George Singer, of Coventry, in the County of Warwick,
Bicycle Manufacturer, for the Invention of "IMPROVEMENTS IN ROLLER
BEARINGS"
Sealed the 3rd February 1880, and dated the 6th August 1879.
"
PROVISIONAL SPECIFICATION left by the said George Singer at the Office
of the Commissioners of Patents on the 6th August 1879.
GEORGE SINGER, of Coventry, in the County of Warwick, Bicycle Manufacturer..
'IMPROVEMENTS IN ROLLER BEARINGS."
According to this Invention I place a series of rollers in the bearing or plummer
block of a spindle or shaft in such a manner that they are free to revolve in place
round their several axis, and also all of them to travel together round the shaft or
spindle. For this purpose I form every alternate roller with a neck or diminished
part or parts, and the other alternate rollers are formed with enlarged bosses or
parts working against the aforesaid necks of the first named rollers; the first
named set of rollers are the bearing rollers, and the second set the dividing rollers,
serving to keep the bearing rollers apart.
To hold the rollers in the bearing I fit the latter with a retaining end washer.
Or instead of the aforesaid separating rollers I may use separating bars suitably
formed to fit the curvature of the necks of the bearing rollers, but not necessarily
revolving against the same though free to travel round the shaft with them.
This Invention is particularly applicable to bicycles and other vehicles.
GEORGE SINGER, of Coventry, in the County of Warwick, Bicycle Manufacturer.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Singer in the Great Seal Patent Office on the 6th February
1880.
GEORGE SINGER, of Coventry, in the County of Warwick, Bicycle Manufacturer.
"IMPROVEMENTS IN ROLLER BEARINGS.
According to this Invention I place a series of rollers in the bearing or plummer
block of a spindle or shaft in such a manner that they are free to revolve in place

page_text: round their several axes, and also all of them to travel together round the shaft or
spindle.
For this purpose I form every alternate roller with a neck or diminished part or
parts, and the other alternate rollers are formed with enlarged bosses or parts
working against the aforesaid necks of the first named rollers; the first named
set of rollers are the bearing rollers, and the second set of the dividing rollers
serving to keep the bearing rollers apart. To hold the rollers in the bearing I
fit the latter with retaining end washer.
Or instead of the aforesaid separating rollers I may use separating bars suitably
formed to fit the curvature of the necks of the bearing rollers, but not necessarily
revolving against the same though free to travel round the shaft with them.
This Invention is particularly applicable to bicycles and other vehicles.
And in order that this my Invention may be more fully understood, I will now
proceed to describe the same with reference to the accompanying Drawings.
Figure 1 is a vertical cross section of a bicycle wheel bearing constructed
according to this Invention; and Figure 2 is a vertical section at right angles to
that of Figure 1; d is the one side of the fork fitted with this roller bearing; a, a,
are the bearing rollers; and b, b, the intermediate or dividing rollers which serve
to keep the bearing rollers apart. The bearing rollers a are formed with a
diminished or neck part at each end as shewn, and the intermediate rollers b are
formed with corresponding enlarged boss at each end, against which bosses the
necks of the bearing rollers a take a bearing, while the middle portion of the
rollers b is so small as not to touch the middle portion of the bearing rollers a.
The whole set of rollers a and b is free to revolve with the journal part e of the
bicycle wheel.
Figure 3 shews a section of a bearing; this view represents a modification in
which the rollers are retained in the bearing by an end washer f at each end of
the bearing, said washer being fastened thereto by screws. To diminish end
friction the rollers may be turned down sunaller at the ends as shewn.
Figure 4 is plan of a half bearing d which is formed with an annular recess in
which all the rollers are placed; Figure 5 shows the rollers a and b separately,
but they may be made as shewn at Figure 5ª.
In Figure 6 I have shewn a cross section through a bearing d in which the
intermediate rollers are replaced by distance pieces or bars b which are not free to
revolve, but at each end they are formed with concave parts in which the necks of
the rollers & have their bearings, while the middle part of the bars b may be round
or square, but so small as to clear the middle part of the rollers a as shewn.
And having thus described and ascertained the nature of this my Invention, I
declare that I do not lay claim generally to roller bearings in which each roller is
free to revolve in place, while all the rollers are free to revolve together round the
journal, but I claim,-
The construction of roller bearing, substantially as described and shewn in the
accompanying Drawings, in which every alternate roller or part is a bearing roller,
said bearing rollers being kept apart by intermediate rollers or bars, the whole of
the bearing rollers and intermediate rollers or bars being free to revolve round the
⚫journal.
In witness whereof, I, the said George Singer, have hereunto set my hand
and seal, this Fourth day of February, in the year of our Lord One
.