Improvements in the Construction of Framework for Velocipedes and like Vehicles.
Year: 1897

page_text: Improvements in the Construction of Framework for Velocipedes
and like Vehicles.
I, ALBERT CRAWLEY, of 3, Poolstock, Wigan, in the County of Lancaster, Cycle
Maker, do hereby declare the nature of this invention to be as follows, that is to
Say:-
Heretofore in the production of framework for velocipedes and like vehicles
it has been usual to join or couple together the several pieces of tubing
forming said framework, by means of jointing pieces of forged or stamped steel
or iron or of cast malleable iron, however as this process entails the expenditure
of a considerable amount of time and labour by experienced workpeople which
it is desirable to avoid. I purpose, in accordance with my present invention, to
follow the process hereinafter set forth.
Instead of having separate jointing pieces to secure the several tubular parts
together, I form these jointing pieces by the process of casting them on the tubular
parts either in sand or clay moulds or metal chills as is well understood, but with this
exception, that is to say, prior to running the molten metal over the tubular parts,
I cover the portions or ends of said tubular parts to which the cast metal lias to
adhere, with a softer metal or one that melts at a lower temperature such as tin, soft
solder soft brazing alloy or the like, on which I place the tubes thus covered into
the, moulds and pour over them the molten metal. This molten metal may be
gun-metal or like alloy which does not require annealing to bring into its proper
and desired condition after being cast.
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Improvements in the Construction of Framework for Velocipedes
and like Vehicles.
I, ALBERT CRAWLEY, of 33, Poolstock, Wigan, in the County of Lancaster, Cycle
Maker, 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, that is to say: -
Heretofore in the production of framework for velocinedes and like vehicles

page_text: it has been usual to join or couple together the several pieces of tubing
forming said framework, by means of jointing pieces of forged or stamped steel
or iron, or of cast malleable iron, however as this process entails the expenditure
of a considerable amount of time and labour by experienced workpeople which
it is desirable to avoid, I purpose, in accordance with my present invention to
follow the process hereinafter set forth.
In order that my said invention may be readily understood I have hereunto
appended a sheet of drawings illustrating the framework of a bicycle so that the
parts referred to may be clearly shown, such framework being considered as typical
of the many and varied parts to which my improved process relates, so that further
illustration is not necessary.
Instead of having separate jointing pieces such as those indicated at a be and d to
secure the several tubular parts f together, formed in separate parts and afterwards
secured to the tubes by brazing, screwing or bolting as heretofore, I form these
said pieces abc and d by the process of casting them on to the said tubular parts f
either by running the molten metal into sand-moulds, clay-moulds or metal chills in
the manner well known and extensively followed in the construction of heavy articles,
as bedsteads etc., but in accordance with my invention, prior to running the molten
metal over the tubular parts, I cover the portions or ends of said parts f to which
the cast parts abe and have to adhere, with a coating of softer metal or one that
melts at a lower temperature than does said cast metal, as would tin, soft solder,
soft brazing alloy or the like, and after thus covering said tubes I place these
covered parts of them into moulds and pour thereon the molten metal. This
molten metal may be "gun-metal" or like alloy which does not require annealing
to bring it into its proper and desired condition after being cast.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. Framework for velocipedes and like vehicles constructed substantially us
herein specified.
2. The method or process followed in the production of framework of the class
described substantially as herein set forth.
Dated this 29th day of August 1898.
ALBERT CRAWLEY,
Per Samuel Hey,
Agent.