Improvements in Torpedo Booms.
Year: 1889

page_text: Date of Application, 7th Oct., 1889
Complete Specification Left, 6th Jan., 1890-Accepted, 1st Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Torpedo Booms.
I WILLIAM PELHAM BULLIVANT of 72 Mark Lane in the City of London Wire
Rope Manufacturer do hereby declare the nature of this Invention to be as
follows:-
Hitherto torpedo booms have generally been made of wood and the heel attach-
ments have consisted of metal shoes or sockets or the like into which the heel end of
the boom has been inserted and rivetted I now propose to make the booms of steel
tubes either taper or with parallel sides and make the heel attachment so that it is
secured at the inside of the boom instead of the outside as hitherto I make the
attachment with a reduced part which is inserted into the tube the end of the tube
bearing against a shoulder formed on the attachment. The attachment can be
secured by rivets or I may shrink the tube onto the attachment or I may screw
attachment in the tube or secure it in other convenient way.
Dated this 7th day of natahan 1000
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Torpedo Booms.
I WILLIAM PELHAM BULLIVANT of 72 Mark Lane in the City of London Wire
Rope Manufacturer, do hereby declare the nature of the said Invention and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement :-
Hitherto Torpedo booms have generally been made of Wood and the heel attach-
ments have consisted of metal shoes or sockets or the like into which the heel end of
the boom has been inserted and rivetted so that the said shoe or socket is connected
to the exterior of the boom I now propose to make the booms of metal (preferably"
steel or iron) tubes either of single or double taper or with parallel sides and make
the heel attachment so that it is secured at the inside of the boom instead of the
outside as hitherto. I make the attachment with a reduced part which is inserted
into the tube the end of the tube bearing against a shoulder formed on the attach-
ment. The attachment can be secured by rivets or screws or I may shrink the
tube on to the attachment or I may screw the attachment in the tube or secure it in
other convenient way.
And in order that my Invention may be well understood I will describe with
reference to the accompanying Drawings manners in which the same may be carried
into practical effect.
A represents the heel end of the boom the said boom being made of a metal
(preferably steel or iron) tube which may be either the same diameter throughout or
tapering towards the outer end or from the mid-portion towards both ends-The heel
attachment B has a reduced part or stem and a shoulder 62 for the heel end of the
boon to bear against. The stem is inserted into the interior of the tubular boom A
at the heel end thereof and is secured therein in any suitable way-In the drawings I
have shewn three ways in which this can be done-Figure 1 shews the stem b
screwed so that it can be screwed into a corresponding screw in the interior of the
heel end of the tubular boom. Figure 2 shews the said stem 6 as inserted into the
heel end of the tubular boom and secured therein by screws cc passing through
Price 6d1

page_text: the tube forming the boom and into the said stem. Figure 3 shews the stem bas
being secured in the interior of the heel end of the tubular boom by shrinking the
said heel end upon the said stem.
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 boom for supporting torpedo nets the said boom being made of metal (preferably
steel or iron) tube and having the heel attachment secured inside the heel end of the
said boom substantially as hereinbefore described and as illustrated by the
accompanying Drawings.
Dated this 3rd day of January 1890
W. PELHAM BULLIVANT.