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Патент USA US2121878

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Filed March 18, 1956
m i!
Inventor .‘
Patented June 28, 1938
> 2,121,878
ic-AsrEnFoR-sUGAR on OTHER Gasman ~
illlaui'icejvlllpcker, Manchester, England ’
Application March 18, 1936, 1Serial=No. 69,483
I I In Great Britain -March 30,1935 ‘
3v Claims.
This invention relates to a caster forsugar or
other granular or powdered substance, such as
salt, coffee, etc.
The ordinary sifter or caster has certain- dis
advantages, for example, the quantity delivered
is inde?nite (being dependent upon the size of
grain, its dryness and the size' of apertures which
are difficult to judge), and the delivery is very
distributed and by‘ its construction its use is
10 limited to that for whichit was made, i. e., for
sugar or for salt respectively.
The object of the invention is an improved
caster which is simple and e?i'cient in operation,
is free from the above stated disadvantages and
has a Wider range of utility.
According to the invention, the improved caster
comprises a holder or container having a delivery
nozzle with synchronized masked inlet and outlet
valves therein, so that the body of the nozzle
20 constitutes a measuring chamber.
In the accompanying drawing-—
Figure 1 is a longitudinal vertical sectional
view of my improved caster.
Figure 2 is a sectional view of a modi?ed
form of the caster.
As shown in Fig. 1, the improved caster com
prises a glass jar-like body a tapering at its lower
end to‘ a nozzle ‘in which is ?tted the delivery
nozzle 1)‘. At its upper end the jar is provided
(Cl. 221-114) _
their raised position when the upperuvalve disc
will be above the ?ange e of the valve body. ’
Sugar or other content of the container may then
?ow into the chamber of. the valve body b, the
conical shape of the valve 7' and of the ?ange e 5
acting to direct the ?oW of the same. To obtain
a delivery of the sugar the knob d is depressed,
which operation may be performed by one ?nger
of the hand in which the caster is held; The
?rst movement of the valves brings the edge of
the upper valve disc 7' within the body b, of the
nozzle before the lower disc 1' leaves the same.
Further movement of. depressing the knob brings
the lower valve 2' beyond the end of. the nozzle 19
when the sugar which has collected between the
two valve discs ?ows out over the lower conical
valve 2'. When the knob is released, the valves
rise and sugar again ?ows in under thev upper
valve disc to ?ll the chamber of the nozzle.
The ’
caster above described delivers about half a tea
spoonful of sugar. at each operation, and the
whole contents of the container can be emptied
without difficulty.
The container is easily ?lled by removing the '
screw top.
The upstanding lugs g act to locate the return
spring and also as a guide for the upper‘ valve
disc 7' so that the valve rod will stand centrally
While the cap ‘is removed‘for ?lling the container. ‘
with a screw capv 0 having a central hole through
By varying the diameter of the spacing collar
which projects the knob 11 of the delivery valve
described below.
The nozzle b‘ is cylindrical in shape, having a
or both the length of the collar and nozzle, the g
conical ?ange e adapted to rest on the inside of
the glass body and screw-threaded on its outside
for a clamping nut f. ' Above the flange and sur
rounding the central bore of the nozzle are three
upstanding guide lugs g. The bore of the nozzle
which is about % inch long by % inch diameter
40 is slightly enlarged at each end for about 1% inch
of its length, forming seatings or stops, h, h1 for
the valves.
The valve consists of two conical washers i
and a‘ separated by a distance piece It about %
45 inch long-the three parts being mounted on a
quantity of material which is delivered may be ,
adjusted as may be required. ,The diameter‘of -
the valves and nozzle may also be varied for the
In combination with the sifter is a stand q in
which the caster may stand or there may be pro
vided a depending flange ‘r as shown in Fig. 2
formed as an extension of the glass body a and‘
on which the caster may stand, on a table. One 40
advantage of the separate stand q is however,
that any small quantities of sugar which pass the
valves due to vibration or accidental operation
of the knob or other cause are collectedtherein
and may be returned to the container. For such gs 5
purpose the stand is preferably made so that the
the knob dwhichprojects through the hole in end of the container ?ts therein su?-lciently closely
to protect any sugar therein from the access of
the cap 0.
A return spring 0 is provided of the coiled type ?ies or from other contamination. Also the end
adapted at one end to’ encircle the three guide . of. the screw Z may be extended to engage the
lugs'g above referred to, and having its other well of the stand q so that the knob cannot be ‘
end bent across diametrically to pass through a depressed until the caster is lifted.
As already explained, the caster may be used
small hole p in the» tubular rod m.
In operation, thev spring 0 holds the valves in l'or salt, tea, coffee or any other suitable com
screw 1 which screws into the end of a tubular
rod m. Onthe upper end of the rod m is secured
modity beside sugar, and is, therefore, a very
useful domestic utensil.
What I claim is:1. A caster comprising a container having a
cylindrical outlet passage, an annular inwardly
projecting ridge in said passage intermediate of
tion, 'both the ‘valve-‘like ‘members are within
their respective ends of said passage.
2. A caster according to claim 1 characterized
by a stand having a recess adapted to receive and
enclose the lower end of the caster, on which end
is formed the outlet passage, the bottom of the
its ends, and a measuring :and delivery valve asso
recess being just lower than the end of the valve
ciated with said passage, comprising two valve
rod when the caster is supported in the stand with
the valves in their raised position, the bottom of.
like members spaced apart on a rod, and both of
equal diameter, just smaller than the internal
diameter of the passage, but greater than that
of the ridge, said members being spaced apart by
a distance less than the length of the passage but
greater than the distance from either end of. the
passage to the side of the ridge furthest from such
end, the ridge constituting a stop de?ning the
limit of movement of the valve members in both
directions, and so that, in an intermediate posi
the stand thereby acting as a stop to prevent 10
opening or downward movement of the valves.
3. A caster according to claim 1 characterized
in that the valve-like members are detachably
mounted on their rod and separated by a detach
able distance piece which determines their spac 15
ing apart.
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