Improvements in Cocks or Taps to Facilitate their Lubrication.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Cocks or Taps to Facilitate their Lubrication.
We, WILLIAM LEA, of the Firm of William Lea & Company, of the Bloomsbury
Foundry, Wolverhampton, in the County of Stafford, Brass Founder, and JOHN
DAVIS, of 5, Johnson Street, Wolverhampton, aforesaid, Brass Finisher, in the
employ of the said Firm, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the manufacture of that class of cock or tap in which
provision for its lubrication is provided by means of a recess or chamber in which
oil or lubricant is stored for supply to the surfaces in rubbing contact.
This end has hitherto been sought to be attained in various ways-one of the
most effectual known to us prior to the present invention being that shown and
described in the Specification of Letters Patent granted to the said William Lea
bearing date the 4th of February 1887 No. 1803.
or
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According to our present invention we form the plug of the cock, or tap, of
full size preferably larger in size than is the custom for a given size of bore for
the supply. This plug has substantially the usual form of waterways and seating.
The plug is formed hollow so as to afford a much enlarged reservoir for oil or
lubricant which reservoir is preferably, continued down below the line of the
to the
to deliver lubricant
passages
waterway by channels,
outer surface of the plug not only above but to below the line of the water way
formed therethrough and correspondingly to the adjacent surfaces of the seating.
These receptacles we prefer for economy to attain by means of moulding with
the aid of cores, or wires, or equivalent appliances laid in, in the moulding
although in some cases, or partially, drilling may be employed.
The oil or lubricant, may be supplied to this reservoir by an opening suitably
situated; as through the upper part of the hollow plug or through the thumb
bit of the plug; which opening may lie conveniently at the side of the handle
stem in the former arrangement, or be somewhat counter-sunk in the latter case,
and be closable by a stem or screw stopping piece.
In some cases we provide a chamber in or on the barrel of the tap or cock with
passages leading to the meeting surfaces of the plug and barrel and means for
closing the entrance to the said chamber for oil, or like lubricant, in combination
with the herein before described means of lubrication from the interior of the
plug.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicants.

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We, WILLIAM LEA, of the Firm of William Lea & Company, of the Bloomsbury
Foundry, Wolverhampton, in the County of Stafford, Brass Founder, and JOHN
DAVIS, of 5, Johnson Street, Wolverhampton aforesaid, Brass Finisher, in the
employ of the said Firm, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to the manufacture of, that class of cock or tap in which
provision for its lubrication is provided by means of a recess or chamber in which
oil or lubricant is stored for supply to the surfaces in rubbing contact.
This end has hitherto been sought to be attained in various ways-one of the
most effectual known to us prior to the present invention being that shown and
described in the Specification of Letters Patent granted to the said William Lea
bearing date the 4th of February 1887 No. 1803.
According to our present invention we form the plug of the cock, or tap, of
full size preferably larger in size than is the. custom for a given size of bore for
the supply. This plug has substantially the usual form of waterways and seating.
The plug is formed hollow so as to afford a much enlarged reservoir for oil or
lubricant which reservoir is preferably, continued down below the line of the
waterway by a channel or channels, or passages so as to deliver lubricant to the
outer surface of the plug not only above but to below the line of the water way
formed therethrough and correspondingly to the adjacent surfaces of the seating.
These receptacles we prefer for economy to attain by means of moulding with
the aid of cores, or wires, or equivalent appliances laid in, in the moulding
although in some cases, or partially, drilling may be employed.
The oil or lubricant, may be supplied to this reservoir by an opening suitably
situated; as through the upper part of the hollow plug or through the thumb
bit of the plug; which opening may lie conveniently at the side of the handle
stem in the former arrangement, or be somewhat countersunk in the latter case
and be closable by a stem or screw stopping piece.
In some cases we provide a chamber in or on the barrel of the tap or cock with
passages leading to the meeting surfaces of the plug and barrel and means for
closing the entrance to the said chamber for oil, or like lubricant, in combination
with the hereinbefore described means of lubrication from the interior of the
plug.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows one construction of cock according to our invention, by a side
view, partially in section, the metal round about the seating being shown as broken
away to enable the plug to be seen the better to indicate the oil passages.
Fig. 2 shows a plan view of Fig. 1, and
Fig. 3 is an end view of the same.
Fig. 4 shows a modification of the construction of the body of the cock, corre-
sponding to the side view in Fig. 1, but having an oil chamber on the barrel of the
cock with inlet opening closed by a screw and passages of supply to the plug.
Fig. 5 shows a plan view of this modification.
Fig. 6 shows a cross sectional view of the barrel with the plug in full lines,
according to Fig. 4.
Figs. 7 and 8 show by side view and cross sectional views respectively the plug,
common to the arrangements described in the preceding ficures

page_text: Fig. 9 shows a modification in the construction of the entrance or supply opening
to the oil chamber in the plug.
The invention is applicable to various forms of cocks and taps.
a is the plug, b¹ the seating for the same in the barrel b, a* being the handle
for turning the same. a¹ is the oil chamber in the plug a, as is the inlet passage
of supply closable by means of the screw c. a³, a³ are passages from the chamber a¹
to the upper part of the plug and its seating and a is a corresponding passage
from the oil chamber a¹ to the lower part of the plug and its seating, as being
an annular groove formed in the plug to facilitate distribution of the oil.
d (Fig. 8) shows the waterway through plug a.
In Figs. 4, 5 and 6, 63 shows an additional oil chamber provided in the barrel
of the tap, having an inlet for supply 64 closable by a screw stopper 65. 66 is a
channel of communication to the upper part and 67 a like passage to the lower
part of the plug and seating for a supplemental supply of oil thereto
In Fig.
the passage for supply of oil to the plug chamber a¹ has its outlet
or opening closable by screw stopper c in the head of the handle instead of at
the side thereof.
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. The construction and use in cocks or taps of plugs formed with hollow
internal chambers of enlarged size and passages for supply and distribution of
lubricant to the meeting surfaces of the plugs and barrels the supply opening
being closable by suitable closing means, as and for the purposes set forth and
shown by the drawings.
2. The combination of the construction of plug, claimed in Claim 1, with a
cock or tap barrel having a supplemental reservoir of lubricant and passages for
its supply and distribution to the parts desired to be oiled, as shown and described
with reference to Figs. 4, 5 and 6.
Dated the 15th day of August 1898.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicants.