Draw-On Locking Taps.
Year: 1899

page_text: Date of Application, 18th May, 1899
Complete Specification Left, 19th Feb., 1900-Accepted, 12th May, 1900
Draw-On Locking Taps.
I, HORACE WILLIAM JOYCE, of Hop Market, Broad Street, Hereford, in the
County of Hereford, Hop Factor, do hereby declare the nature of this invention
to be as follows:
My invention relates to an improvement in draw-off locking taps of the kind
referred to in the prior Patents No. 21352 of A.D. 1896 and No. 6517 of
A.D. 1898, granted to me and another, and the object of my present improve-
ment is to simplify the construction and so to reduce the cost of production of
such taps.
In the construction of taps referred to in the prior patents cited
the body of the tap is in some cases (and as now generally used). screwed from
the front of the cask into a metallic bush fixed into the cask from the interior
thereof, due provision being made for securing an efficient tight joint between
the two said parts.
Now according to my present improvement I do not screw the body itself
into the bush, but I secure it therein by a screwed ring. For this purpose I
provide at the inner end of the loose body part a circumferential collar having
Hat or plain surfaces, behind, before and around same and adapted to make a
face joint with the front inner surface of the bush. The hollow bush which
is screwed into or otherwise affixed to the cask from the interior is provided
interiorly with a screwed portion disposed in front of the plain surface above
mentioned against which the peripheral flat surface of said collar fits well; and
I provide an externally screwed ring to fit the inner screw of said bush. By
screwing the ring home against the collar of the body of the tap the same is
forced strongly against the inner surface of the bush, and a tight joint assured:
To prevent any turning motion of the body whilst screwing home the ring I
may form corresponding flat surfaces on both collar and bush in suitable
position or employ a projection and recess or equivalent stop. The ring is
operated by a compass key or otherwise conveniently.
Dated this Wightaanth des. 1000

page_text: and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement: —
My invention relates to an improvement in draw-off locking taps of the kind
referred to in the prior l'atents No. 21352 of A.D. 1896 and No. 6517 of
A.D. 1898, granted to me and another, and the object of my present improve-
ment is to simplify the construction and so to reduce the cost of production of
such taps. In the construction of taps referred to in the prior patents cited
the body of the tap is in some cases (and as now generally used) screwed from
the front of the cask into a metallic bush fixed into the cask from the interior
thereof, due provision being made for securing an efficient tight joint between
the two said parts.
Now according to my present improvement I do not screw the body itself
into the bush, but I secure it therein by a screwed ring. For this purpose I
provide at the inner end of the loose body part a circumferential collar having
Hat or plain surfaces behind, before and around same and adapted to make a
face joint with or without the aid of a washer with the front inner surface of
the bush. The hollow bush which is screwed into or otherwise affixed to the
cask from the interior is provided interiorly with a screwed portion disposed in
front of the plain surface above mentioned against which the peripheral flat
surface of said collar fits well; and I provide an externally screwed ring to fit
the inner screw of said bush. By screwing the ring home against the collar
of the body of the tap the same is forced strongly against the inner surface of
the bush, and a tight joint assured.
In further description I will refer to the accompanying drawings wherein
Fig. 1 is a vertical section, and Fig. 2 a front elevation, of one form of my
improved tap provided with a transverse vertical rotary plug. Figs. 3 and 4
are respectively separate views of loose body part and ring. Figs. 5 and 6 are
similar views to Figs. 1 and 2 of an alternative form of screwed ring attachment.
Like reference letters refer to like parts in all the figures.
Referring to Figs. 1, 2, 3 and 4, I provide at the inner end of the loose body
part B a circumferential collar & having flat or plain surfaces behind, before
and around same and adapted to make a face joint, with or without a washer w,
with the front inner surface a of the bush A. The hollow bush A' which is screwed
into or otherwise affixed to the cask C from the interior is provided interiorly
with a screwed portion a disposed in front of the plain surface a above men-
tioned against which the peripheral flat surface of said collar fits well; and
I provide an externally screwed ring R shown separately in Fig. 4 to fit the
inner screw a¹ of said bush. By screwing the ring R home against the collar
of the body of the tap, which body is shown separately in Fig. 3, the same is
forced strongly against the inner surface a of the bush or the interposed
washer and a tight joint is secured. To prevent any turning motion of the
body whilst screwing home the ring I may form corresponding flat surfaces on
both collar and bush A in suitable position, or I may employ a projection
and recess or equivalent stop, but such means are not illustrated in the drawings
nor does it form an essential part of my improvements. The ring R is operated
by a compass key fitting into holes such as rr or otherwise conveniently.
In the alternative construction shown in Figs. 5 and 6 B is the loose body
part as before having a circumferential collar b provided with a plain surface
adapted to make a tight joint with the inner front face a of the bush A, a
suitable washer w being interposed. The hollow bush A is shown in this case
as screwed into the cask from the exterior, although it may be fixed from the
interior if so arranged.
R is the screwed ring adapted to screw upon a correspondingly screwed
surface of the body B.
With this arrangement the ring R is first placed in position and secured by
studs, lugs or like projections afterwards attached. By now pressing the loose
body part B against the ring R and screwing the latter back against the studs t

page_text: by means of the holes the body B is forced strongly against the inner surface
of the bush and a tight joint is secured with the aid of the washer w.
The construction and arrangement of plug and keyways and so forth may
be as shown in accordance with my former patents or otherwise suitably.
In Figs. 5 and 6 the vent tube will be carried by the body B so as to be
removable therewith.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. In draw-off locking taps of the kind described the special arrangement
and combination of parts which consists of a loose body part provided with a
circumferential collar having plain surfaces adapted to be pressed home against
a front inner plain surface in the bush by a screwed ring acting within said
bush.
2. In draw-off locking taps of the kind described the special arrangement and
combination of parts which consists of a loose body part provided with a circum-
ferential collar having plain surfaces adapted to be pressed home against a
front inner plain surface in the bush by a screwed ring acting within said bush
with or without a washer interposed between said plain surfaces, corresponding
flat surfaces or the like being provided upon body and bush if necessary to
prevent the turning of the former during the tightening process, all substan-
tially as and in the manner hereinabove set forth and illustrated in reference
to Figs. 1, 2, 3 and 4 of the drawings.
3. In draw-off locking taps of the kind described the special arrangement
and combination of parts which consists of a loose body part provided with a
circumferential collar or part having a plain surface adapted to be pressed home
against a front inner plain surface in the bush by a screwed ring acting within
said bush, a suitable washer being provided between the plain surfaces, all
substantially as and in the manner set forth in reference to Figs. 5 and 6 of
the drawings.
Halth 101 dave of Wabenant 1000
J. C. CHAPMAN & Co.,
Chartered Patent Agents, 70, Chancery Lane, Londɔn, W.C.