Improvements in Slings for Lifting Shells and other Articles.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Slings for Lifting Shells and other Articles.
We, Sir W. G. ARMSTRONG, WHITWORTH & COMPANY, LIMITED, Manufacturing
Engineers, and JOSEPH HONNER, late Commander in the Royal Navy, both of
Elswick Works, Newcastle-on-Tyne, do hereby declare the nature of this inven-
tion to be as follows:-
:-
In our former Specification No. 16655 of 1898 we described a band sling which
could be secured by countersunk lugs on a detachable eye entering holes in one
end of the band while the eye was passed through a larger eye fixed to the other
end.
-
In place of this arrangement we now secure the sling in the following man-
ner: the handle of the sling is cranked and its ends turn in bearings fixed to
one end of the band and are provided with eccentrics embraced by straps on a
plate carrying countersunk lugs adapted to enter holes in the other end of the
band. When the band has been passed round a shell, the handle is turned down,
moving the plate away from its bearings thus practically increasing the length
of the band; the lugs can then be made to enter the holes but when the handle
is turned up and the band again shortened the lugs cannot pass out through the
holes while the weight of the shell tends to keep the sling closed.
In order that the plate may be quickly adjusted over the end of the band in
position for the lugs to enter the holes we may make a V cut in the plate to
engage with a pin carried by the end of the band.
The axis of the handle may be provided with a squared end to enable it to be
turned by a key if necessary.
1
1. 1800
Improvements in Slings for Lifting Shells and other Articles.
We, Sir W. G. ARMSTRONG, WHITWORTH & COMPANY, LIMITED, Manufacturing
Engineers, and JOSEPH HONNER, late Commander in the Royal Navy, both of
Elswick Works, Newcastle-on-Tyne, do hereby declare the nature of this inven-
Dia 17

page_text: tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
In our former Specification No. 16655 of 1898 we described a band sling which
could be secured by countersunk lugs on a detachable eye entering holes in one
end of the band while the eye was passed through a larger eye fixed to the other
end.
In place of this arrangement we now secure the sling in the following man-
ner: the handle of the sling is cranked and its ends turn in bearings fixed to
one end of the band and are provided with eccentrics embraced by straps on a
plate carrying countersunk lugs adapted to enter holes in the other end of the
band. When the band has been passed round a shell, the handle is turned down,
moving the plate away from its bearings thus practically increasing the length
of the band; the lugs can then be made to enter the holes but when the handle
is turned up and the band again shortened the lugs cannot pass out through the
holes while the weight of the shell tends to keep the sling closed.
In order that the plate may be quickly adjusted over the end of the band in
position for the lugs to enter the holes we may make a V cut in the plate to
engage with a pin carried by the end of the band.
The axis of the handle may be provided with a squared end to enable it to be
turned by a key if necessary.
Figure 1 of the drawings annexed shows an edge view partly in section of a
closed sling constructed according to this invention. Figure 2 is a central sec-
tion, Figure 3a view of the handle and fastening from underneath, and Figure 1
is a view similar to Figure 1 showing the two ends of the sling disengaged.
is the handle turning in bearings on the end of the band the other
end of which is provided with holes c engaging with countersunk lugs don
a plate e having straps f embracing eccentrics on the handle which has a
squared end to enable it to be turned by a key.
A pin h may be provided on the end 61 of the band to engage with a √ cut №³
on the plate e to facilitate the insertion of the lugs & into the holes c.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. A sling for shot and similar articles one end of which is connected by
an eccentric and eccentric strap to a plate having countersunk lugs engaging
holes on the other end of the sling.
2. A sling for lifting shell and similar articles having pivotted to one end of
it a cranked handle upon the axes of which are eccentrics embraced by straps
attached to a plate which can be engaged with the other end of the sling by
countersunk lugs on the one entering holes in the other the eccentrics acting
to contract the sling and retain the parts locked together when the handle is
turned into a radial position and elongate it when turned away from that
position.
3. A sling substantially as described and illustrated.
SIR W. G. ARMSTRONG, WHITWORTH & CO., LIMITED.
S. WA. NOBLE,
I HONNER
Director.
T. M. FALKNER,
Secretary.