IMPROVEMENTS IN PUMPS FOR SALTING MEAT, AND FOR SIMILAR PURPOSES."
Year: 1881

page_text: LETTERS PATENT to William Wright, of Plymouth, in the County of Devon,
Brassfounder, for an Invention of "IMPROVEMENTS IN PUMPS FOR SALTING
MEAT, AND FOR SIMILAR PURPOSES."
PROVISIONAL SPECIFICATION left by the said William Wright at the Office
of the Commissioners of Patents on the 2nd March 1881.
Et
WILLIAM WRIGHT, of Plymouth, in the County of Devon, Brassfounder.
IMPROVEMENTS IN PUMPS FOR SALTING MEAT, AND FOR SIMILAR PURPOSES."
In external appearance this pump may resemble an ordinary syringe, the barrel,
handle, plunger, or plunger-rod (and stuffing box if needed) being of ordinary
construction.
In place, however, of the usual nozzle, I employ a form pointed and closed at
the end and perforated all round. A suction branch I prefer to place upon the
side of the pump barrel; to this may be attached by preference a flexible suction
pipe, having a rose or strainer at the end to keep out fat, etcetera, which would
block the tube and valves.
The valves I prefer to form of indiarubber and place them separately, one for
the suction and one for the discharge. However, I may use other forms, materials,
and arrangement of valves, seatings, etcetera, as the exact arrangement is not
material so long as they are readily accessible and not too costly.
In constructing these pumps, such materials as are not readily corrodible by the
brine or acid employed should be employed as much as possible, though for
cheapness other materials may at a pinch be used. India rubber or vulcanite are
good, and brass may be used particularly for the barrel when preferred.
In using this form of pump, the end of the suction pipe lies in the brine, the
sharp pointed nozzle is inserted into the meat, and by forcing in the handle the
brine is injected through the perforations in the nozzle.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Wright in the Great Seal Patent Office on the 26th August
1881.
WILLIAM WRIGHT, of Plymouth, in the County of Devon, Brassfounder
"IMPROVEMENTS IN PUMPS FOR SALTING MEAT, AND FOR SIMILAR PURPOSES."
In external appearance this pump may resemble an ordinary syringe, the barrel,
handle, plunger, or plunger rod (and stuffing box if needed) being of ordinary
construction.
In place, however, of the usual nozzle, I employ a form pointed and closed at the
end and perforated all round. A suction branch I prefer to place upon the side
of the pump barrel; to this may be attached by preference a flexible suction pipe,
having a rose or strainer at the end to keep out fat, etcetera, which would block
the tube and valves.
The valves I prefer to form of indiarubber and place them separately, one for
the suction and one for the discharge. However, I may use other forms, materials,
and arrangement of valves, seatings, etcetera, as the exact arrangement is not
material so long as they are readily accessible and not too costly.
In constructing these pumps, such materials as are not readily corrodible by the
brine or acid should be employed as much as possible, though for cheapness other
materials may at a pinch be used. India rubber or vulcanite are good, and brass
may be used particularly for the barrel when preferred.
In using this form of pump, the end of the suction pipe lies in the brine, the
sharp pointed nozzle is inserted into the meat, and by forcing in the handle the
brine is injected through the perforations in the nozzle.
Reference being had to the accompanying Drawing, which represents in section
a convenient form of the pump, A is the barrel, B the piston, and C the piston rod
working through a cover or guide at the end of the barrel farthest from the valves;
instead of this piston and rod a solid plunger, such for instance as is sometimes
employed in a garden syringe, can if preferred be used.
D is a brass casting which contains the valves, etcetera, and to which are
attached (in the Drawing they are shown screwed) the suction and discharge
branches E and F; E is an indiarubber disc with a hole through the middle,
forming a seating for the ball valve E2 of some suitable metal or material, but may
be merely a schoolboy's common stone shooting." marble"; Es is a perforated cover
to hold the ball valve in its place; G is a flexible suction tube terminating in a
rose or strainer H; I is the discharge nozzle blocked and pointed at the end K,
and perforated for such portion of its length as is requisite. The valve arrange-
ment on the discharge branch is similar to that upon the suction branch already
described. The action is similar to that of an ordinary pump. The piston is
supposed to be moving in the direction indicated by the arrow, the suction valve
being open and the brine entering through it into the barrel, the discharge valve
being closed. Upon reversing the motion of the piston, the suction valve is closed,"
the discharge valve opened, and the contents of the barrel are discharged through
the perforations in the nozzle I, which has been previously inserted in the meat.
Having now described my Invention, and the method of performing the same,
I wish it to be understood that I am aware that the pointed perforated nozzle is
not new, as it has been already used for this purpose as part of a clumsy, large,
and inconvenient apparatus, which required to be specially filled with the brine
before use, and that I therefore do not lay claim to it by itself, but that what
I do claim and desire to protect under the hereinbefore in part recited Letters
Patent is,-
In an instrument for salting or curing meat, the combination of the pointed and
perforated discharge nozzle with the suction and discharge valves, piston, and

page_text: barrel, or their respective equivalents of an ordinary force pump, whereby a light
and handy instrument may be produced, which is capable of drawing its supply at
each stroke direct from an independent vessel, substantially as and for the purposes
set forth and shown.
In witness whereof, I, the said William Wright, have hereunto set my hand
and seal, this 18th day of August, in the year of our Lord One thousand
eight hundred and eighty one.
WILLIAM WRIGHT. (L.S.)