Improvements in the Construction of Condenser Bobbins of Spinning Mules.
Year: 1892

page_text: Date of Application, 21st Sept., 1892
Complete Specification Left, 21st June, 1893-Accepted, 22nd July, 1893
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Condenser Bobbins of Spinning
Mules.
I, HIRAM RAMSDEN, of Armitage Terrace, Littletown, Liversedge, in the
County of York, Millwright, do hereby declare the nature of this invention to be
as follows:
This invention relates to improvements in the condenser bobbins used with
spinning mules and its object is to simplify the construction and increase the
durability of this class of bobbin.
-
For this purpose I form each of the end centre pins or journals of the bobbin
solid with a socket large enough to receive and adapted to be secured to the end of
the wooden barrel of the bobbin in a somewhat similar manner to the hoop or
ferrule commonly used. And I form a rabbet or reduced portion with a square
shoulder on the outer end or face of said socket upon which I shrink the sheet
metal flange or disc forming the end of the bobbin and I rivet the edge of
said rabbet over to assist in retaining the said disc in position.
The said sockets and centre pins are preferably steel castings.
Dated this 20th day of September 1892.
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in the Construction of Condenser Bobbins of Spinning
Mules.
I, HIRAM RAMSDEN, of Armitage Terrace, Littletown, Liversedge, in the
County of York, Millwright, 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 improvements in the condenser bobbins used with
spinning mules and its object is to simplify the construction and increase the
durability of this class of bobbin.
For this purpose I form each of the end centre pins or journals of the bobbin
solid with a socket large enough to receive and adapted to be secured to the end of
the wooden barrel of the bobbin in a somewhat similar manner to the hoop or
ferrule commonly used. And I form a rabbet or reduced portion with a square
shoulder on the outer end or face of said socket upon which I shrink the sheet
metal flange or disc forming the end of the bobbin and I rivet the edge of the
rabbet over to assist in retaining the said disc in position.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in each of the figures.
Figure 1, represents a side view of one end of a condenser bobbin constructed in
accordance with my invention.
Figure 2, is a diametrical section of the same.
Figure 3, is an inside view of the end of the bobbin at right angles to the axis.
The centre pin A and socket B are made of one steel casting and a shoulder or
rabbet C is formed on the end face of the bobbin upon which the metal disc D of
the bobbin is shrunk and is further secured thereon by the edge of the shoulder
being riveted over around the centre hole of the disc.

page_text: The socket B is forced on to the end of the barrel E which may be reduced
to fit and a pin or rivet may be passed diametrically through the socket and
barrel.
The interior of the socket is made somewhat conical or taper both to facilitate
moulding and casting and also to enable it to be more readily placed tightly in
position upon the barrel.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
-claim is :
A condenser bobbin end having the centre pin and socket for the barrel formed
in one piece with the end disc secured thereon, substantially as herein shown and
described and illustrated in the accompanying drawings.
Dated this 19th day of June 1893.
DRACUP & NOWELL,
Bradford, Agents.