IMPROVEMENTS IN ANTIFRICTION. BEARINGS FOR VEHICLE WHEELS .
Year: 1882

page_text: LETTERS PATENT to William John Brewer, of London Street, in the City of
London, Civil Engineer for an invention of IMPROVEMENTS IN ANTIFRICTION.
BEARINGS FOR VEHICLE WHEELS
.
"
PROVISIONAL SPECIFICATION left by the said William John Brewer at the
Office of the Commissioners of Patents on the 10th June 1882.
WILLIAM JOHN BREWER, of London Street, in the City of London, Civil
Engineer "IMPROVEMENTS IN ANTI FRICTION BEARINGS FOR VEHICLE WHEELS
My invention relates to what are known as "anti friction" bearings, which
depend for their action upon the employment of balls or rollers employed in
bicycles tricycles and similar light vehicles.
It is designed to further minimize the friction, to reduce the risk of "jamming"
of the balls or rollers, and to lessen their wear and tear, and further to afford
facility in starting.
My invention consists of a wheel in combination with such "antifriction" ball
or roller bearing, as at present known. The axle neck or journal of the said wheel
rotates, between balls or rollers of known types, in any usual construction of
antifriction ball or roller bearing. The periphery of the said wheel receives the
pressure of the main axle journal, which is kept vertical to its centre by suitable
brackets.
This intermediate wheel between the axle and the antifrictional ball or roller
bearing effects the objects aforesaid by reducing the speed of rotation of the journal
between the balls or rollers.
To minimize the friction when starting, the sides of the bracket may be fitted
with sliding pieces where the journal is in contact therewith, so that the journal is
in contact with a moving surface. At the back of this sliding piece is formed a
chamber for lubricant which can communicate through suitable holes in the sliding
pieces to the main axle journey to prevent firing

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William John Brewer in the Great Seal Patent Office on the
8th December 1882.
WILLIAM JOHN BREWER, of London Street, in the City of London, Civil
Engineer IMPROVEMENTS IN ANTI FRICTION BEARINGS FOR VEHICLE WHEELS
My Invention relates to what are known as "anti friction" bearings, which
depend for their action upon the employment of balls or rollers, used in bicycles,
tricycles, and other light vehicles
It is designed to further minimize the friction, to reduce the risk of "jamming"
of the balls or rollers, and to lessen their wear and tear, and further to afford
facility in starting
For the complete understanding of my invention I now proceed to describe the
same with regard to the drawings hereunto annexed, reference being had to the
letters and figures marked thereon. Like letters refer to like parts throughout
the figures
My invention as shewn in Sectional elevation, Figure 1, consists essentially of a
wheel A in combination with an antifriction ball or roller bearing B, as at present
known The axle neck or journal C of the said wheel A rotates between balls or
rollers of known types B, in any usual construction of antifriction ball or roller
bearing The periphery of the said wheel A receives the pressure of the main
axle journal D, which is kept vertical to its centre by suitable brackets E.
The intermediate wheel A, between the axle D and the anti frictional ball or
roller bearing B, effects the objects aforesaid by reducing the speed of rotation of
the ultimate journal C between the balls or rollers B
To minimize the friction when starting, the sides of the bracket E may be fitted
with sliding pieces F, where the journal is in contact therewith, so that the journal
is in contact with a moving surface. At the back of the sliding piece may be
formed a Chamber G for lubricant, which communicates through suitable ducts in
the sliding pieces to the main axle journal D to prevent firing.
Figure 2. shows the same combination of parts, with the addition of an under
roller H, which revolves in a chamber packed with cotton waste or other suitable
material soaked with lubricant-In this case the lubricating chamber behind the
sliding piece may be dispensed with.
In place of taking the side bearing of the main journal D upon sliding pieces, I
may use small rollers
Figure 3. shows a bicycle fitted with my device
Figure 4. shows an enlarged cross section of the bearing wheel A
Figure 5. shows the combination of a bearing wheel as patented to me
5 November 1881 No 4849, with the sliding piece and lubricating under roller.
Figure 6. shows an enlarged view of the said bearing wheel patented to me as
aforesaid, and therefore not now broadly claimed
Having now fully described and ascertained the nature and object of my
invention and the manner in which it is to be performed, be it known that what
I consider novel and useful and desire to protect by my Letters Patent is:-
1st In an anti frictional bearing the combination of known ball or roller bearings
with a second bearing wheel, substantially as and for the purposes specified

page_text: 2nd The optional combination with such a device of sliding pieces and lubricating
chamber substantially as and for the purposes specified
In witness whereof I the said William John Brewer have hereunto set my
hand and seal this Sixth day of December in the year of our Lord One
thousand eight hundred and eighty two
Witness
S. P. WILDING
23 Rood Lane, Fenchurch street
London E.C.
Patent Agent.
WM JNO BREWER. (L.S.)