Improvements in and relating to the Manufacture of Gear Cases for Cycles.
Year: 1897

page_text: Date of Application, 6th May, 1897
Complete Specification Left, 4th Mar., 1898-Accepted, 9th Apr., 1898
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Manufacture of Gear Cases for
Cycles.
We, EPHRAIM CUTLER, of 272, Broad Street, in the City of Birmingham, Manu-
facturer, and SAMUEL GEORGE PRICE, of 292, Bridge Street West, Birmingham,
Mechanic both members of the Speedwell Gear Case Company, Limited, trading
Mechanic, both members of the Speedwell Gear Case Company Limited, trading
this invention to be as follows:-
This invention relates to an improved method of and means for attaching the
sides of gear cases and it consists in forming beads or mouldings upon the narrow
upper and lower edges and ends of same, that is to say the said edges and ends are
formed with a convex bead running around the configuration of the case, a smaller
convex bead is formed and rises upon said convex bead upon each half of the gear
case all round, and when the two halves or sides of the case are fitted together the
smaller bead upon the one half fits up within the corresponding bead upon the
other half, the meeting edges of the outside smaller bead being soldered or other-
wise secured to the inner and so completing the joining of the parts.
Thus a much stronger case is produced by the additional strength provided at
the meeting parts of connection.
By our improvements the gear cases can be turned at a much quicker rate and
the overwrapping edges of the beads or mouldings can be readily pared before
fitting the parts together.
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EDWD. J. PAYNE & SON,
Warwick Chambers, 104, Colmore Row, Birmingham,
Patent Agents for the Applicants.
COERDELE DELICATION.
Improvements in and relating to the Manufacture of Gear Cases for
Cycles.
We, EPHRAIM CUTLER, of 272, Broad Street, in the City of Birmingham, Manu-
facturer, and SAMUEL GEORGE PRICE, of 292, Bridge Street West, Birmingham,
both members of the Speedwell Gear Case Company Limited, trading at 1:39,
Tennant Street, Birmingham aforesaid, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement reference being had to the draw-
ings accompanying this Specification and to the figures and letters shewn thereon.
Figure 1. Is a side elevation of the gear case.
Figure 2. An edge view. Figure 3. An End
Figure 4. Represents the two halves of the gear case before being put together.
Figure 5. Is'a sectional view on the line A, A.
view.
Figure 1.

page_text: Figure 6. Is an enlarged part sectional view. Figure 7. Represents an enlarged
part edge view. Figures 89 and 10 are respectively part sectional view and part
edge views of alternative method of beading.
Our invention relates to an improved method of and means for attaching the
sides B B of gear cases each to each and it consists in forming beads or mouldings
upon the narrow upper and lower edges and ends of same that is to say, the said
edges and ends are formed with a convex or V shaped or other bead (a) (a¹) run-
ning around the configuration of the case, a smaller convex or V shaped or other
bead (b, b) is formed and rises upon said larger bead (a, a¹) upon each half of
the gear case all round same, and when the two halves or sides B B are fitted
together the smaller bead (b) upon the one half or side fits up within the corres-
ponding bead (b) upon the other half or side of the gear case and thus interlocks,
the meeting edges of the outside smaller bead (b) are soldered or otherwise secured
to the inner smaller bead (6) and so completes the joining of the parts.
By our improved method of manufacturing gear cases and connecting the sides
a very much stronger case produced by the additional strength provided at the
meeting parts namely that where the junction takes place at the edges and ends.
Furthermore gear cases so produced can be turned out at a much quicker rate and
the over wrapping edges of the beads or mouldings can be readily pared before
fitting the parts together.
In Figures 8, 9 and 10 a modification of the above method is shewn. In this
case the edges and ends of the gear case are formed with a convex or V shaped or
other bead a, a' run around same with two (or more) smaller convex or V shaped
or other beads a³ a³ running parallel to each other, each bead has a selvedge or
strip a left upon same and to unite the two sides B B the selvedge or strip
upon the one bead is overlaid by the selvedge or strip upon the other bead which
are then secured together the one over the other by soldering or other suitable
means.
We may vary the details and construction of our improvements without depart-
ing from the essential points of our invention.
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 :-
Firstly. In the manufacture of gear cases for cycles the method of connect-
ing the two halves or sides of the same consisting of forming beads or mouldings
upon the edges and ends the beads upon the one side or half engaging the beads
upon the corresponding side or half as and for the purpose set forth.
Secondly. The manufacture of gear cases by uniting the sides by means of beads
or mouldings upon the edges and ends of same the one interlocking with and
engaging the other, interior and exterior the overwrapping part being soldered or
otherwise secured to its under part so as to complete the junction and form a
rigid joint as described.
Thirdly. In the manufacture of gear cases for cycles the method of connecting
the two halves or sides consisting in forming two or more parallel beads or mould-
ings on the edges and ends of said gear cases and uniting same by means of solder-
ing or otherwise securing the strips or selvedges upon the edges of said beads or
mouldings the one to the other as set forth.
Thin th
1000