Improvements in I
Year: 1897

page_text: Improvements in I
I, HERBERT WILLIAM WILSON, of the Firm of Wilson Brothers Limited, of the
Cornholme Bobbin Works, Todmorden, in the County of Lancaster, Bobbin
Manufacturers, do hereby declare the nature of this invention to be as follows:-
My said invention relates to improvements in loom shuttles and refers to the
method of securing the metal tips thereof. ln loom shuttles at present in use
the shanks of the metal tips are formed with circular grooves.
When the shank is forced into the shuttle the wood embeds within these circular
grooves and thus prevents the tip from being accidentally knocked out. When
the shuttle has been in use for some little time however it is found that the tip
becomes loose and is capable of being revolved on its axis, the wood embedded
within the circular grooves offering no opposition to this motion.
As a consequence defects in the working of the shuttle are apt to arise. For
instance the warp is apt to get caught between the loose tip and the wooden
shuttle.
Moreover after the shuttle has been in use for some time and has become worn
by constant friction, if the tip should become loose and turn on its axis, it presents
a proud edge to the shuttle race, the consequences of which may be highly
disastrous.
The object of my invention is to overcome these defects which I effect by pro-
viding means to prevent the tip from revolving on its axis.
In carrying my invention into effect I provide the shank of the metal tip with
two or more longitudinal opposite grooves or depressions in addition to the circular
grooves.
When driven into the wood of the shuttle the longitudinal grooves form key-.
ways into which the wood of the shuttle becomes embedded, thus securely keying
the tip to the shuttle. The circular grooves act as before to prevent the accidental
withdrawal of the tip, whilst the longitudinal grooves provide very efficient means
to secure the tip from being revolved on its axis.
Dated this 18th day of May 1897.
For the Applicant,
E. K. DUTTON & Co.,
Chartered Patent Agents, 5, John Dalton Street, Manchester.

page_text: I, HERBERT WILLIAM WILSON, of the Firm of Wilson Brothers Limited, of the
Cornholme Bobbin Works, Todmorden, in the County of Lancaster, Bobbin
Manufacturers, 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 and accompanying drawings:
My said invention relates to improvements in loom shuttles and refers to the
method of securing the metal tips thereof. In loom shuttles at present in use
the shanks of the metal tips are formed with circular grooves.
When the shank is forced into the shuttle the wood embeds within these circular
grooves and thus prevents the tip from being accidentally knocked out. When
the shuttle has been in use for some little time however it is found that the tip
becomes loose and is capable of being revolved on its axis, the wood embedded
within the circular grooves offering no opposition to this motion.
As a consequence defects in the working of the shuttle are apt to arise. For
instance the warp threads are apt to get caught between the loose tip and the
wooden shuttle.
Moreover after the shuttle has been in use for some time and has become worn
by constant friction, if the tip should become loose and turn on its axis, it pre-
sents a proud edge to the shuttle race, the consequence of which may be highly
disastrous.
The object of my invention is to overcome these defects which I effect by pro-
viding means to prevent the tip from revolving on its axis.
In carrying my invention into effect I provide the shank of the metal tip with
two or more longitudinal opposite grooves or depressions in addition to the
circular grooves.
The accompanying sheet of drawings illustrates my invention more clearly.
Fig. 1 shows a plan view of a shuttle broken in length for want of space and
provided with my improved shuttle tips.
Fig. 2 is a separate view of the shuttle tip.
Fig. 3 is a cross section on the line A B Fig. 1.
Fig. 4 shows in cross section a modified shape of longitudinal groove in the
shank of the tip.
As will be seen from an inspection of the drawings in addition to the usual
circular grooves I provide the shank of the metal tip a with longitudinal grooves b.
The longitudinal grooves or depressions are shown in the drawings as being
two in number and are disposed diametrically opposite to each other. I do not
confine myself to this number as one or more than two such grooves may be used.
In Figs. 1 to 3 the grooves b are shown semi-circular in cross section but they
might be of other section such as the ✓ section shown in Fig. 4.
When driven into the wood of the shuttle the longitudinal grooves b form. key-
ways into which the wood of the shuttle becomes embedded, thus securely keying
the tip to the shuttle. The circular grooves act as before to prevent the
accidental withdrawal of the tip, whilst the longitudinal grooves 6 provide very
efficient means to secure the tip from being revolved on its axis.
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:-
Forming the shanks of metallic tips of loom shuttles with longitudinal grooves

page_text: or depressions so that when driven into the wood of the shuttle the grooves form
key-ways into which the wood is embedded and thus prevent the tips being
revolved on their axes substantially as described and illustrated.
Dated this 15th day of February 1898.
For the Applicant,
E. K. DUTTON & Co.,
Chartered Patent Agents, 5, John Dalton Street, Manchester.