Improvements in Cycles, and in the Manufacture of the same.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cycles, and in the Manufacture of the same.
I, JOSEPH WILSON of Desford House Harnall Lane, Coventry in the County of
Warwick Fitter and Turner do hereby declare the nature of my said invention to be as
follows:-
My invention has for its object improvements in cycles and in the manufacture of
the same and has special reference to the main junction bracket and its bearing which
enables, me to obtain special advantages both in the manufacture of the cycle and also
in the effectiveness of the bearing as being dust and scale proof and as having effective
provision for retaining the oil.
My main or junction bracket and its bearing are formed as follows:-
The spindle is cased in by a sleeve or tube which is screwed externally at each
end and upon which the internally threaded cups for the reception of the balls.
These cups are flanged down to the spindle and form a complete reservoir for the
oil and completely encase the spindle with the exception of its projecting ends. The
junction bracket is quite a separate piece from the bearing as before explained and
consists of a block, with its bosses or branches for the reception of the frame tubes
but it is entirely severed through one side and has lugs and bolts or pins for
tightening the slot. This bracket or outer casing when unscrewed with the slot open
just passes over the cups of the bearing and when in position the pins in the lugs
are tightened up. This action of tightening both locks the cups on the sleeve and
secures the bracket in position. An oil hole is provided through the bracket and
one cup or sleeve. The advantages are many as the bearing is detachable from the
bracket and it is dust and scale proof; it can be adjusted from each end and the
lubricant is sealed; the frame can also be put together and finished altogether apart
from the bearing.
Dated this 26th day of May 180
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent for Applicant.
Improvements in Cycles, and in the Manufacture of the same.
1, JOSEPH WILSON, of Desford House, Harnall Lane, Coventry, in the County of
Warwick, Fitter and Turner, do hereby declare the nature of my said 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 has for its object improvements in cycles and in the manufacture of
the same and has special reference to the main junction bracket and its bearing which
enables me to obtain special advantages both in the manufacture of the cycle and also
in the effectiveness of the bearing as being dust and scale proof and as having effective
provision for retaining the oil..

page_text: My main or junction bracket and its bearing are formed as follows:-
The spindle is cased in by a sleeve or tube which is screwed externally at each end
and upon which the internally threaded cups for the reception of the balls. These
cups are flanged down to the spindle and form a complete reservoir for the oil and
completely encase the spindle with the exception of its projecting ends. The junction
bracket is quite a separate piece from the bearing as before explained, and consists of
a block with its bosses or branches for the reception of the frame tubes, but it is
entirely severed through one side and has lugs and bolts or pins for tightening the
slot. This bracket or outer casing when unscrewed, with the slot open, just passes
over the cups of the bearing and when in position the pins in the lugs are
tightened up. This action of tightening both locks the cups on the sleeve and
secures the bracket in position. An oil hole is provided through the bracket and one
cup or sleeve.
In order that my invention may be more clearly understood and easily carried
into practical effect I have appended hereunto a double sized sheet of drawings upon
which I have shown examples of my improved bottom bracket bearings.
Figure 1 is a plan view looking from the underneath of my improved bottom
bracket bearing.
Figure 2 is an end view of Figure 1.
Figure 3 is a view showing the internal parts of the bracket detached from the
outer shell or casing A.
Figure 4 is a view showing the sleeve or tube which covers or encloses the centre
portion of the spindle.
Figure 5 is a sectional view of one of the bearing cups.
Figure 6 is a plan view looking from the under side of the outer shell or
casing A.
Figure 7 shows the pin and nut for tightening or binding the outer casing on to
the bearing.
Figure 8 is a part sectional plan view of the bracket bearing complete.
In carrying my invention into practice I encase the spindle S in the sleeve or
tube B which is screwed externally at each end to receive the cups or half ball
races B and B which are tapped for that purpose, as clearly shown at Figure 5.
The outer ends of these cups fit closely around the spindle, thus forming a complete
reservoir for the oil for lubricating the balls 63 which revolve between the cups B
and B2 and the cones s' secured to or formed out of the spindle S. After the parts
have been put together as shown at Figure 3 so as to form a complete bearing I insert
it into the outer casing or shell A, with the usual junctions A A3 and A3, which is
split or sawn across longitudinally on the under side as shown at Figures 1 and 6 and
provided with four lugs a, as, a and a' which are drilled to receive the pins p³ and p².
When this bearing has been placed in position in the outer casing the pins are
tightened up by the nuts p³ and p', a flat being formed on each pin to prevent them
turning, by which means the bearing is securely held in position. This action of
tightening up the outer casing not only holds the bearing in position but it securely
locks both cups on the sleeve B. The slot as is formed in the outer casing for
inserting the tube a which is screwed into the hole formed in the sleeve B for
lubricating purposes.
The advantages are many, as the bearing is detachable from the bracket and it is
dust and scale proof; it can also be adjusted from each end and the lubricant being
sealed the spindle is always immersed in an oil bath.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
First. In a velocipede bottom bracket bearing forming the outer casing or shell
such as A with a longitudinal slit or saw cut on the under side and inserting in the
interior of the said casing a separate bearing which is held in position by the casing
binding upon the ends such as B1 and B2 by means of the pins and nuts in the

page_text: manner and for the purpose substantially as herein set forth and as shown upon the
accompanying sheet of drawings.
Second. In a velocipede bottom bracket bearing enclosing the centre of the spindle
such as S in a casing or sleeve such as B screwed at its ends and on to which ends
the cups such as B and B are screwed to receive the balls 2 and then securing the
whole in the outer shell or casing such as A in the manner and for the purpose
substantially as herein set forth and as shown upon the accompanying sheet of
drawings.
Third. In a velocipede bottom bracket bearing the sleeve such as B for enclosing
the spindle and screwed externally to receive the cups such as B' and B2, the said
cups being locked in position by the outer shell or casing A in the manner and for the
purpose substantially as herein set forth and as shown upon the accompanying sheet
of drawings.
Fourth. The improvements in cycle bottom bracket bearings and in the manufacture
of the same substantially as herein before described and as shown upon the
accompanying sheet of drawings.
Dated this 26th day of February 1897
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.