Improvements in Pots or Vessels for Mustard and other Semi-fluid Substances.
Year: 1892

page_text: COMPLETE SPECIFICATION.
Improvements in Pots or Vessels for Mustard and other Semi-fluid
Substances.
I, KARL AUGUST LINGNER trading under the style of Lingner and Kraft
of 8 Freibergerplatz in the City of Dresden Kingdom of Saxony, German Empire,
Manufacturer, 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 invention refers to pots or vessels for mustard and other semi-fluid sub-
stances and its object is to provide such pots or vessels with devices or apparatus
by the use of which the contents are caused to be forced or ejected from the pots
in a measured or desired quantity.
In carrying out my invention 1 provide the hollow space of the pot with a piston
or plunger and through an aperture in one side or wall of the pot above the piston
I arrange a handle or lever, projecting or protruding through the wall to the outside
for convenient handling. This handle or lever is pivoted at any suitable place and
is connected to the piston by a ratchet device, so that by cach down stroke or
movement of the handle or lever the piston or plunger is caused to make a step-
motion in a downward direction. The space in the pot underneath the piston being
filled with the mustard or other semi-fluid substance to be ejected, and this space
having a spout or tube at its lower end, it is obvious that every downward move-
ment of the handle or lever will cause a desired quantity of the semi-fluid substance
to be forced or ejected from the spout or tube by the downward step-motion of the
piston.
And in order that my invention may be more fully understood I refer to the
drawings annexed to this Specification, Figure 1 of which shows in vertical section
a pot provided with means for ejecting the contents in desired quantity or
quantities.
On a base or stand a a hollow vessel is arranged; this vessel constitutes the
pot and may be of cylindrical, oval or angular section in plan, but I prefer to make
it cylindrical. The vessel or pot is provided at its lowest point or near its
bottom with a spout or bent tube c, and at top it is provided with a removable
cover or lid fastened to the vessel in any convenient manner.
Within the vessel I insert a piston or plunger d corresponding in plan to the
shape of the vessel b and capable of sliding freely within the same. The piston has
a rod e projecting in an upward direction, said rod being provided with teeth of
suitable shape or configuration. In the upper part of the vessel I provide a hinge
preferably arranged at the lower side of the cover. To this hinge the one end of
the lever or handle g is movably attached, the handle g protruding through a
suitable aperture in the wall of the vessel to the outside.
0
On that part of the handle g which is within the vessel I provide a pawl i
movably connected to the handle and pressed by means of a spring so as to
engage with the teeth of the rod e. By this arrangement of parts each downstroke
of the handle g will cause the piston d to descend for the space of one tooth or
more, and will thereby cause a corresponding quantity of the mustard or semi-fluid
substance to be forced or ejected from the mouth of the spout c. After the vessel
has become empty the cover with the handle is removed, and the piston is
withdrawn from the vessel, the latter is then refilled to a proper height and after
re-insertion of the piston and of the cover with the handle, the pawl will engage
with the teeth of the rod and the apparatus will be ready for use again.
It is obvious that the means for causing the downward step-motion of the piston
or plunger by the handle may be varied without departing from the main point of

page_text: this invention. Figures 2, 3, and 4 (all of which are vertical sections through the
pot) show various ways by which the downward step-motion of the piston or
plunger may be effected. For example in Figure 2 I have prolonged the walls of
the hollow plunger d, which walls are provided on opposite sides with teeth. The
plunger has no rod connected directly to it as in Figure 1, but a rod e is hinged to
the handle or lever g, and the lower end of this rod is provided with two pawls i i
engaging with the teeth of the plunger.
The effect of this device will be the same as with the one shown in Figure 1 and
with those shown in Figures 3 and 4, the down stroke of handle y causing a down-
ward step-motion of the plunger d and the ejection of the desired quantity of
mustard or other semi-fluid substance through the spout c.
In Figure 3 the handle g is provided with a pawl i engaging by means of a spring
with the teeth of a ratchet wheel k, which is mounted to revolve within the vessel
by means of the handle and the pawl. The wheel is provided with a groove /
into which takes by means of a pin or stud the one end or arm of a multiple lever
or lazy tongs arrangement m, the lower end of the levers being connected to the
piston or plunger d. The groove is so shaped that if the wheel is revolved in
step-motion by means of the handle and pawl, the groove by the rotation of
wheel k will step by step expand the levers m, thereby causing the plunger d to
descend step by step.
or
In Figure 4 the handle g, the pawl and the ratchet wheel kare the same
nearly the same as in Figure 3. On the axis of said wheel is fixed an excentric
disc which rests with its smallest diameter on the rode of the plunger d. If now
the wheel kis rotated step by step, the rod with plunger will be pressed down step
by step by the increasing diameter of the disc n coming in contact with the rod e.
I have shown these variations in order to exemplify that the details of the means
for causing the step motion of the plunger or piston in a downward direction are
capable of considerable modification.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. A pot or vessel for mustard or other semi-fluid substances, from which the
mustard or substance contained therein is forced out or ejected in measured or
desired quantity or quantities by a piston or plunger inside the vessel worked by a
lever or handle outside the vessel, substantially as described.
2. A pot or vessel for mustard or other semi-fluid substances in which a piston or
plunger is worked by a lever or handle outside the vessel, the lever or handle and
the piston or plunger being so connected that every stroke of the handle or lever
will impart a step motion to the piston or plunger in a downward direction, in order
to eject a quantity of the mustard or other substance through the spout of the
' vessel substantially as described.
3. The various arrangements shown in Figures 1, 2, 3 and 4 of the annexed
drawings by which the contents of pots or vessels for mustard or other semi-fluid
substances are forced or ejected therefrom in a measured or desired quantity
substantially as described.
Dated this 2nd day of September 1899
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Chartered Patent Agent.