AN IMPROVEMENT IN CASK TAPS to be as follows:
Year: 1884

page_text: I ABRAHAM MARTIN of 177 Aston Lane, Birmingham in the County of Warwick,
Engineer, do hereby declare the nature of the said invention for "AN IMPROVEMENT
IN CASK TAPS to be as follows:-
"
My Invention relates to an improvement in taps for beer and other casks, which
are intended to be driven into a hole in the cask head by forcing out a cork in the
usual way and the invention has for its object to prevent the tap being deformed
and the plug or valve being disturbed in its seat by the blows of the hammer in
driving the tap in. It has further for its object to lessen the weight of brass used
in the manufacture of the tap and so decrease its cost, whilst increasing the
strength of the tap head for the first mentioned purpose.
The invention consists in enclosing the tap head in a strong steel casing which
would be made of two halves or shells stamped up or otherwise made to conform to
the shape of the tap head so as to closely embrace the same.
This steel casing
would be provided with a knob or anvil to be struck by the hammer, and would
take a bearing against a shoulder formed on the tap stem and be secured in place
on the tap head by a screw or rivet uniting the two shells. The brass portion of
the tap enclosed by the casing is made quite plain and of much lighter metal than
usual.

page_text: I ABRAHAM MARTIN of 177 Aston Lane, Birmingham in the County of Warwick,
Engineer do hereby declare the nature of my invention for "AN IMPROVEMENT IN
CASK TAPS 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 taps for beer and other casks, which
are intended to be driven into a hole in the cask head by forcing out a cork in the
usual way and the invention has for its object to prevent the tap being deformed
and the plug or valve being disturbed in its sent by the blows of the mallet in
driving the tap in. It has further for its object to lessen the weight of brass used
in the manufacture of the tap and so decrease its cost whilst increasing the strength
of the tap head for the first mentioned purpose.
The invention consists in encasing the tap head in a stout casing of hard metal
so fitted and applied as to receive the force of the blows and transmit the same
directly to the stem of the tap at a point in rear of the tap head which is thus
entirely shielded from injury.
Reference is to had to the accompanying drawings forming part of this
Specification wherein, Figure 1 is a side elevation, Figure 2 a plan, figure 3 a
longitudinal vertical section figure 4 a longitudinal horizontal section and figure 5
an end view of a tap encased according to my invention. A is the tap head fitted
with a plug (not shown) in any usual manner. B is the ordinary tapered stem,
CC is the casing of my invention made in two longitudinal halves or shells adapted
to fit on and closely embrace the tap head and a portion B¹ of the stem immediately
in rear of the same. The tap head is made quite plain externally (ie without any
nose) and of much lighter metal than usual and the portion B¹ of the stem is of
reduced diameter so as to present a shoulder b against which the end of the casing
abuts firmly so as to transmit the force of the blows directly thereto.
For this purpose there may be a slight clearance at the point a between the
casing and the tap head to entirely relieve the latter. The casing CC is formed
with a nose c to be struck by the mallet and the two halves or shells are united
and secured in place by a rivet or screw d.
The casing would be preferably made of and formed by casting in a metal mould.
Being much cheaper than the brass of which the tap is made, it may be made
proportionately stronger without increasing the cost of the tap.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed, I declare that what
I claim is:
The combination with a tap of a metal casing embracing the tap head and taking
a direct bearing against the stem so as to shield the head and transmit the force of
the blows to the stem substantially as shown and described.
Dated this 28th day of October 1884.
ABRAHAM MARTIN.
By his Agents,
A. M. & Wm Clark,
53, Chancery Lane, W.C