Improvements in the Construction of Filter Press Taps and the like.
Year: 1890

page_text: Date of Application, 9th Dec., 1890
Complete Specification Left, 9th Sept., 1891-Accepted, 10th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Filter Press Taps and the like.
CHARLES BILLINGTON Senr. and JOHN NEWTON, Vulcan Works, Longport,
Staffordshire, Brass Founders, do hereby declare the nature of this invention to
be as follows:-
Our invention relates to an improved construction of taps for use in filter
presses, yeast presses and the like.
The ordinary mode of securing the retaining collar on the outlet end of such
metal taps, greatly diminishes the strength of such taps, and the object of our
invention is to overcome that weakness. One mode of carrying our invention into
practice is by forming the aperture or hole at the back end of the bayonet nut,
parallel, conical or stepped, and a little larger than the retaining collar, which we
cast solid on the outlet end of the tap, so that the said bayonet nut can be freely
passed over the said retaining collar, to secure the said bayonet nut in position so
as to prevent it coming off the outlet end of the tap, it is first placed over the
retaining collar on to the outlet end of the tap and tilted to one side, when two or
more segments or parts of a divided parallel, conical, or stepped ring can be placed
through the aperture between the inside edge of the bayonet nut and the outlet end
of the tap, the said segments or parts of the divided ring are then separately slid
or pushed into position in the coned, parallel or stepped hole in the back end of the
bayonet nut, and driven home or tightly forced in by a punch, drift or other
suitable means, or if the hole or aperture at the back end of the bayonet nut, and
the outside periphery of the divided ring are bored and turned parallel, the said
segments or divided ring after being driven into position, may be soldered or brazed
to the bayonet nut.
Another mode of carrying our invention into practice is after finishing the outlet
end of tap with retaining ring cast in one with same, to cast the nut in place, after
first painting the outlet end with a solution of china clay, or wrap round the said
outlet end asbestos alone, or asbestos painted over with china clay, or other
suitable material. Or we cast a groove in the outer periphery of the outlet end of
tap, and insert a core, which core would come into contact with the metal while
casting the bayonet nut in place.
Dated this 8th day of December 1890.
JOHN NEWTON,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in the Construction of Filter Press Taps and the like.
CHARLES BILLINGTON Senior, and JOHN NEWTON, Vulcan Works, Longport,
Staffordshire, Brass-founders, 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 our invention relates to an improved construction of taps for use in filter
presses, yeast presses and the like.
As is well known the usual mode of securing the retaining collar on the outlet
end of such metal taps greatly reduces the strength of such taps, and the object of
our said invention is to secure the bayonet nut on the outlet end of such taps
without diminishing the strength of such taps.
One mode of carrying our said invention into practice is by forming the aperture
Pine 877

page_text: or hole at the back end of the bayonet nut of such taps either parallel, conical or
stepped, and a little larger than the retaining collar, which retaining collar we cast
on or in one with the outlet end of such taps, so that the bayonet nut can be freely
passed over the said retaining collar, and so that the bayonet nut loosely fits on, and
can be freely moved on the outlet ends of such taps.
To secure the bayonet nut in position on and to prevent it coming off the outlet
end of such taps the bayonet nut is first placed over the retaining collar on to the
outlet end of the tap, and tilted sufficiently aside, so that two or more segments or
parts of a divided conical or stepped metallic ring can be placed through the
aperture between the inside edge of the bayonet nut and the outlet end of the tap,
the said parts or segments of the divided ring are then separately slid or pushed
into position in the coned, parallel or stepped hole in the back end of the bayonet
nut, and driven home or tightly forced in by a drift, punch or other suitable.
means, or if the aperture or hole at the back end of the bayonet nut and the
outside periphery of the divided ring are bored and turned parallel, the said
segments or divided ring after being driven or forced into position, may be brazed
or otherwise secured to the bayonet nut.
Another mode of carrying our invention into practice, is after finishing the
outlet end of the tap with the retaining ring cast on in one with same, to cast the
bayonet nut in place, after having first painted the outlet end of the tap with a
solution of china clay, or we wrap around the said outlet end asbestos alone, or
asbestos painted over with a solution of china-clay.
Or we cast a groove on the outer periphery of the outlet end of the tap, and
insert a core in such groove, which core would come into contact with the metal
whilst the bayonet nut was being cast in place on the outlet end of the tap.
In order however that our invention may be more readily understood and
explained in detail we have hereunto annexed a sheet of drawings shewing one
mode of carrying our said invention into practice and on which drawings letters of
reference are marked on corresponding parts on all the figures alike.
DESCRIPTION OF DRAWINGS.
Figure 1 is a side clevation of the body of a filter press tap shewing in dotted
lines the position of the bayonet nut, on the outlet end of the tap.
Figure 2 is a similar elevation of the body of a filter press tap to that shewn at
Figure 1, but with the segmental or divided stepped ring or collar in position in
section and the bayonet nut in section taken through the line C-D on Figure 4.
Figure 3 is a plan view or elevation of the divided segmental metal collar or
ring.
Figure 4 is an elevation of the back end of a bayonet nut shewing the divided
stepped metal ring or collar in position in dotted lines.
Figure 5 is an elevation of the body of a filter press tap shewing the bayonet nut
in section, and a part of a divided stepped metal collar or ring in position in the
end of the bayonet nut, and the position in which the body of such taps should be
held whilst the parts or segments of the divided stepped metal ring are placed in
and secured in position.
Figure 6 is a sectional plan view taken through the line A-B of Figure 5,
shewing one half of a divided stepped ring or collar in position in the interior of
the bayonet nut.
Figure 7 is a front elevation of a bayonet nut.
Figures 1, 2, 3, and 4 are drawn about full size, and
Figures 5, 6, and 7 are drawn about one-third of the full size.
In these figures a represents the body of a filter press tap, on the outlet end a²
of and in one with such tap is cast a retaining ring or collar . We then place
over the said retaining collar a bayonet nut c and secure the body of the tap in a
similar downward position to that shewn at Figure 5, so that the parts or
segments d of the divided stepped ring or collar may be the more easily placed in,

page_text: and secured in position to the bayonet nut as seen in dotted lines at Figures 1 and 4,
and in full lines at Figures 2, 5, and 6, which said ring or collar d when secured by
brazing or other suitable means to the interior part of the bayonet nut c, retains
the said bayonet nut c on the outlet end a² of the body a of the filter press tap.
We would have it understood that the ring or collar d may be made in two or
more segments if required, stepped as shewn on the drawings hereunto annexed,
or made parallel or conical, and secured to the bayonet nut by brazing or other
suitable means.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is,
1st. The securing of bayonet nuts on the outlet end of taps for use in connection
with filter presses, yeast presses and the like, on which the retaining collar is cast
in one with the tap, by means of a segmental or divided stepped ring or collar d
made fast to the bayonet nut c of such taps by soldering, brazing or other
suitable means, as herein substantially described, set forth and illustrated at
Figures 1, 2, 3, 4, 5 and 6 of the drawings hereunto annexed.
2nd. The securing of bayonet nuts on the outlet end of taps for use in connection
with filter presses, yeast presses and the like, on which the retaining collar is cast
in one with the tap, by means of a segmental or divided conical ring made fast to
the bayonet nut of such taps by brazing or other suitable means, as herein
substantially described and set forth.
3rd. The securing of bayonet nuts on the outlet end of taps for use in connection
with filter presses, yeast presses and the like, on which the retaining collar is cast
in one with the tap, by means of a segmental or divided parallel ring made fast to
the bayonet nut of such taps by brazing or other suitable means, as herein
substantially described and set forth.
4th. The securing of bayonet nuts on the outlet end of taps for use in connection
with filter presses, yeast presses and the like on which the retaining collar is cast, by
first painting or coating the outlet end of such taps with china-clay, wrapping around
the said outlet ends of such taps asbestos alone, or asbestos covered over or painted
with china-clay, and casting the bayonet nut in place on the outlet end of such taps,
as herein substantially described and set forth.
5th The securing of bayonet nuts on the outlet end of taps for use in connection
with filter presses, yeast presses and the like, by casting a groove in the outlet
end of such taps, inserting a core in such groove, and casting a bayonet nut in
place on the outlet end of such taps as herein substantially described and set
forth.
Dated this 8th day of September 1891.
JOHN NEWTON,
Longport, Staffordshire, Agent for the Applicants.