Improvements in the Manufacture of Gear Cases for Velocipedes and like Objects or Utensils of Aluminium or partly of Aluminium.
Year: 1895

page_text: Date of Application, 22nd Oct., 1895
Complete Specification Left, 21st Aug., 1896-Accepted, 10th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Gear Cases for Velocipedes
and like Objects or Utensils of Aluminium or partly of
Aluminium.
I, HARRY CLIFF, of 9 Toll Street in the Borough of Nottingham, Tinplato
Worker, do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to the manufacture of gear cases for velocipedes and
other objects o utensils formed wholly or partly of thin plates of aluminium, and
it has for its object improvements in the manner of connecting or joining the
several parts of such objects or utensils together
In carrying out this invention each part of the object may be cut out of thin
plates of aluminium, and bent if required to the desired shape, and where the
edge of one part has to be secured to the edge of another part 1 secure to that
edge, a strip of tin-plate or other suitable metal by preferably turning the edge of
the aluminium over the strip of tin-plate and then turning the strip of tin-plate
over the turned in part of the aluminium and round the bent edge of the latter.
The above process may be performed by suntably formed rollers or other means
and may be modified to suit different requirements the main object being to secure
a tim plate on other suitable metal edging to the aluminium. When the edges are
prepared in the manner described they may be placed together and soldered in the
nsual manner.
In the manufacture of gear cases, the top, bottom and ends may be formed of
tin-plate rolled to the required section, or a strip or strips of aluminum may have
tin-plate or other suitable metal edges secured to them in the manner previously
described, and be subsequently rolled into the section required and be bent to the
required form The side plates are then cut out of aluminum, to the shape
required, tin-plate or other suitable metal strips are then secured to their edges
and the whole soldered together. Brackets, slides or other objects may be secured
to the side plates by rivetting.
Dated this Twenty-first day of October 1895.
BOULT & WADE,
Agents for the Applicant.
Improvements in the Manufacture of Gear Cases for Velocipedes
and like Objects or Utensils of Aluminium or partly of
Aluminium.
I, HARRY CLIFF of 9 Toll Street, in the Borough of Nottingham, Tinplate
Worker, do hereby declare the nature of this invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention relates to the manufacture of gear cases for velocipedes and
other objects or utensils formed wholly or partly of thin plates of aluminium, and

page_text: it has for its object improvements in the manner of connecting or joining the
several parts of such objects or utensils together.
In cauying out this invention, cach part of the object may be cut out of thin
plates of aluminium and bent if requned to the desired shape, and where the edge
of one part has to be secured to the edge of another part, I secure to that edge
a strip of tin plate or other suitable metal, by preferably turning the edge of the
aluminium over the strip of tin plate, and then turning the strip of tin plate over
the turned in part of the aluminium and round the beut edge of the latter. The
above process may be performed by suitably formed rollers or other means and
may be modified to suit different requnements, the main object being to secure a
tin plate or other suitable metal edging to the alumin When the edges are
prepared in the manner described they may be placed together and soldered in
the usual manner.
In the manufacture of gear cases, the top. bottom, and ends, may be formed of
tin plate rolled to the required section, of a stup or strips of aluminium may
have tin plates or other suitable metal edges secured to them in the manner
previously described and be subsequently rolled into the section required and be
bent to the required form. The side plates are then cut out of aluminium, to the
'shape icquued, tim plate or other suitable metal strips are then secured to their
edges and the whole soldered together. Brackets, slides on other objects may be
secured to the side plates by rivetting.
In the accompanying drawings
Fig. 1 is a perspective view of a complete gear case, constructed in accordance
with my invention, the two halves being shown separated
Fig. 2 is a transverse vertical section though a complete gear case, the two
halves being shown fitted together.
Fig 3 is a perspective view showing one method of securing the bead flaming
and the side sheets together.
Fig. 4 shows a further method of securing the edging to the sheets.
Fig. 5 is a perspective view showing another method of constructing a gear case,
Like letters indicate like parts throughout the drawings.
A bead framing A of suitable metal, preferably tin plate is formed to the
desired shape. Sheets of aluminium B are cut and bent to the required shape in
order to form the sides of the case. Along the edges of these sheets B, where
they are to be attached to the bead framing A, are secured thin strips C of some
suitable metal, which may be readily soldered to the metal of which the bead
framing is formed. These strips may conveniently be of brass or tin plate, and
are attached to the edges of the aluminum sheets in either of the following ways
The edge of the aluminium is first turned over the edge of the strip of brass, the
strip being then folded over the bent edge of the aluminum sheet, in the manner
shown in Fig. 2; on the edge of the aluminium sheet and the metal strip may be
folded in some other convenient manner such that the stup forms an edging which
cannot readily be detached from the aluminum, or the metal stip may be folded
over the edge of the aluminium sheet, and secured there by rivets such as D, pins,
or other suitable fastenings, in the manner shown in Fig. 3; or the metal strip
may be folded over the edge of the aluminium sheet in a similar manner to that
last described, and be there retained by "burring," that is to say, by punching
depression in the strip and edge of the sheet on either or both sides in the maune!
shown in Fig. 5.
The flaps B' or portion of the gear case which embraces the back stay framing
of the cycle, are constructed in one piece with the aluminium sheets foining the
sides, by bending or moulding the latter to the desired shape, thus obviating the,
necessity of constructing these parts separately, aud soldering or otherwise
attaching them to the sheet metal sides. Aluminium slides on shutters E are
pivotted at E in such a nanner as to allow of the adjustment of the chain. The
edges of one or the other of the halves of the gear caso are folded over as at B³
in the usual manner to embrace the edges of the other half when the two parts

page_text: are brought together, the two halves being secured together by means of a pin or
projection A, which engages with a hole A', a screw which passes though
holes A and another screw which passes through the brass or other metal
lugs B, which lugs are attached preferably by rivets to the aluminum side
sheets.
If desired the whole gear case may be made of aluminium by rolling the side
sheets into the desired shape and edging them with metal in either of the mauners
above described, and soldering the bound edges together as shown in Fig. 4, the
use of a separate head framing being thus obviated.
Though the manner of "binding" the edges of aluminium sheets with metal so
as to enable them to be soldered as desired, is above described and illustrated as
applied to the construction of a gear case for cycles or the like, it is obvious that
it may be employed in forming a variety of other articles constructed wholly or m
part of sheet alumunium.
The gear case may be provided with suitable means for attaching it to the
framing.
Ilaving now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed declare that what I
claim is ;-
1. Making a soldered joint between two pieces of aluminium by interposing two
pieces of material to which solder will readily adhere connecting these pieces to
the aluminium by means of joints other than soldered joints and soldering the two
pieces of interposed metal together.
2. The combination with a sheet of aluminum of a binding of brass or other
Bolderable material substantially as described and illustrated in Figure 2 01 Figure 3
or Figure 5 of the accompanying drawings
3. A gear case for cycles or other articles constructed of sheet aluminium the
edges of which are hound with solderable metal.
4. A gear case for cycles or the like having a bead framing of tin plate or other
inetal and side sheets of aluminium edged witli solderable metal.
5. A gear case for cycles or the like having a bead framing of two plate or other
metal and side sheets of aluminium edged with solderable metal the flaps B¹ being
formed in one piece with the side sheets.
6. In a gear case for cycles on the like the combination with a bead framing
such as A of side sheets of aluminium having an edging such as C and flaps Bi
formed in one piece with the side sheets and slides such as E pivotted to the
side sheets substantially as described and illustrated in the accompanying
drawings.
Dated this 17th day of August 1896.
HARKI CLIFF,
Boult & Wade,
Agents for the Applicant.