Improvements in the Process of Manufacture of Horn Handles for Bicycles and the like.
Year: 1892

page_text: Date of Application, 26th Mar., 1892
Complete Specification Left, 22nd Dec., 1892-Accepted, 25th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Process of Manufacture of Horn Handles
for Bicycles and the like.
1, JOHN ARTHUR STEVENS of Arundel Lane, Sheffield, in the County of York,
Manufacturer, do hereby declare the nature of my invention to be as follows:-
:-
This invention has for its object to economise both material and labour in the
manufacture of pressed horn handles such as are used for bicycles, tricycles and
the like.
In carrying out my invention I take a suitable piece of horn tip either hollow or
solid as preferred, and soften it by boiling in the usual manner; a cylindrical or
other outwardly shaped moulding tool having a round conical hole through it, of
the diameter and length of the required block from which the finished handle is.
made hot and the horn is pushed or knocked into the larger end.
A drifting tool of tapered form and the exact size to produce the finished size of
hole in the handle, and projecting from a supporting plate or block is also heated
to the required degree and its point being placed in a central position or thereabouts
against the horn at the large end of the tapered hole in the moulding block,
pressure is at once applied by the ordinary pressers vice or by any other press or
means, to the drift and the opposite end of the moulding block which forces in the
drift and compresses the horn into the block, in such a manner as to cause it to fill
the tapered hole and assume a corresponding shape outwardly provided also with.
a central hole to fit upon a bicycle cross bar.
This central hole so prepared enables the turner to place the horn block at once.
upon a taper mandril or chuck in his lathe, and to turn up the handle from end to
end instead of having to hold it in a cup chuck and reverse it when one end was.
turned.
Dated the 25th day of March 1902
ROBT. F. DRURY, C.P.A..,
Bank Buildings, George Street, Sheffield, Agent for Applicant..
COMPLETE SPECIFICATION.
Improvements in the Process of Manufacture of Horn Handles
for Bicycles and the like.
I, JOHN ARTHUR STEVENS of Arundel Lane, Sheffield, in the County of York,.
Manufacturer, 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 has for its object to economise both material and labour in the
manufacture of pressed horn handles, especially such as are used for bicycles,
tricycles and the like.
have illustrated the invention in the annexed sheet of drawings in which
COMPLETE SPECIFICATION.
Improvements in the Process of Manufacture of Horn Handles
for Bicycles and the like.
I, JOHN ARTHUR STEVENS of Arundel Lane, Sheffield, in the County of York,.
Manufacturer, 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 has for its object to economise both material and labour in the
manufacture of pressed horn handles, especially such as are used for bicycles,
tricycles and the like.
I have illustrated the invention in the annexed sheet of drawings in which
Fig. 1, represents a horn tip from which a handle is to be made;
Fig. 2, a moulding tool in section ;
Fig. 3, same tool with the tip inserted ;
Fig. 4, the same tool with drifting tool in position ;
Fig. 5, the same with the drift forced home;
Fig. 6, the horn pressed and drifted ;
Ria 7 section of

page_text: suitable piece of horn tip either hollow or solid as preferred, such as that shown in
Fig. 1, and I soften it by boiling it in the usual manner; I then take a moulding
tool such as shown in Fig. 2, marked B, having a smooth tapered hole B¹, made
through it, and preferably provided with a handle C, of any length and form
convenient for the purpose, and having heated it to the required degree, the horn
tip is inserted and driven or forced in at the larger end as far as it will go, as shown
in Fig. 3.
It will be understood that the tapered hole B', is of the diameter and length of
the handle block F, to be made from the horn tip A.
A drifting tool shown in Fig. 4, and marked D, which is made with a flat end
piece E, having been already inade hot, and which is of the required size to form
the hole in the handle, is held with its point in a central position or thereabouts
against the large end of the horn tip A, which is in the heated molding tool B,
and sufficient pressure is applied to force the drift into the softened horn to the
required depth, as shown in Fig. 5.
The moulding tool B, and the drift D, may be held between the arms of a horn
pressers vice, or in a specially constructed machine press, or the like; and they
may be heated by removing them to a fire, or by a fixed or removable gas
apparatus the pressure may be applied either to the drift, or to the moulding tool,
or to both at the same time.
The pressure so applied drives in the drift and causes the soft horn to fill the
opening B', and so assume outwardly a shape corresponding therewith, and also
provided with a centre hole G, to fit upon the cross bar or handle of a bicycle or
other article.
The central hole so prepared, and being slightly tapered enables the horn
turner to drive it upon a tapered chuck or mandril in his lathe, and to turn
and finish the handle from end to end of the block or tip F, instead of having
to hold it in a cup chuck, and reversing it when one end is turned so as to
turn and finish the other.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is performed or carried into practice, I declare
that what I claim is :-,
The improvements in the process of manufacture of born handles for bicycles
and the like, in which a softened horn tip A, is forced into a moulding tool B, to
form it to the desired outside shape, and is also at the same time formed with a
finished centre hole G, by means of a drift D, forced into the horn, in the manner
hereinbefore described and with reference to the annexed drawings.
Dated the 17th day of December 1902
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.