Improvements in "Fork Orowns" for Cycles.
Year: 1899

page_text: Date of Application, 11th Jan., 1899
Complete Specification Left, 30th Sept., 1899-Accepted, 4th Nov., 1899
Improvements in "Fork Orowns" for Cycles.
We, WILLIAM Bown, Overdale Villas, Sutton Street, Aston juxta Birmingham,
in the County of Warwick, Works Manager, and WILLIAM BOWN LIMITED, of
308, Summer Lane, Birmingham, aforesaid, Manufacturers, do hereby declare
the nature of our said invention to be as follows:-
―
"
Our invention has for its object improvements in "fork crowns" for cycles
which are made in two parts from stampings and which will be found much
stronger and simpler to manufacture and without joints or seams at the sides.
In carrying our invention into practice we make our "fork crowns for
cycles from two stampings formed and shaped by suitable dies with a lug or lugs
or projections on the underside at the end of each stamping which lugs or pro-
jections are provided for the front forks of a cycle to fit onto and which are
brazed into the top ends of the forks. The larger stamping is formed with a boss
in the centre which is drilled or bored to receive the tube which passes up the
steering socket or ball head of the cycle. The body of this stamping is also drilled
or bored at right angles to the hole in the centre boss so as to lighten the
crown." The other or smaller stamping is formed hollow in the body portion
also by drilling or boring and is reduced in diameter externally a portion of its
length so as to fit accurately into the hollow body portion of the larger stamping
and this end of the smaller stamping which fits into the body portion of the
larger stamping is formed with two ears or projecting portions which when fitted
into position extend into the bore of the centre boss so that when the steering
socket tube is brazed into this boss it locks the two portions of the "fork crown
firmly together.
Dated thin 10th Now of 1000

page_text: "
in position so that this tube acts as an extra security for holding the two parts
of the " Crown F firmly together. It will be evident that the end of the part F¹
may be slightly extended and reduced so as to fit into the end of the part 1 but
we prefer to reduce the end of the part Fa as shewn as this method makes a
stronger junction on account of the tube T helping to hold the parts together.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:―
CLAIMS.
First: The improvements in "fork crowns" for cycles consisting essentially
in forming such "crowns" in two parts the one part being reduced at its end so
as to fit into the other in the manner herein set forth and substantially as shown
upon the accompanying sheet of drawings.
Second:
"
"Fork crowns for cycles formed from two hollow parts such
as F and F each having a lug or lugs such as f, f the part Ft being formed
with a boss for the reception of the steering socket tube and the part F³ being
reduced at f and having ears or projections f for fitting into the part in
the manner and for the purpose substantially as herein set forth and as shewn
upon the accompanying sheet of drawings.
Third:-In fork crowns as claimed in the second claim uniting the parts
together by forming ears or projections on the reduced portion of the part such
as so that when fitted into the part such as F1 these ears or projections partially
embrace or lap around the steering socket tube in the manner and for the purpose
substantially as herein set forth and as shewn.
DL: daw of September 1800
WILLIAM BOWN, AND
WILLIAM BOWN LIMITED,
By George Barker,
Fellow of The Chartered Institute of Patent Agents,
Agent for Applicants, 77, Colmore Row, Birmingham.