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Патент USA US2124080

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July 19, 1938.
P. PETERSON
2,124,080
Y
SYRINGE HYDROMETER
Filed May 9; 195a
'
2 Sheets-Sheet 1
July 19, 1938.
2,124,080
P. PETERSON
SYRINGE HYDROMETER
Filed May 9', 1936
,2 Sheets-Sheet 2
)
IN VEN TOR
?ier’ [Z’krsam
BY
MW.
2,124,80
Patented July 19, 1938
e
2,124,080
SYRINGE HYDROMETER,
Peter Peterson, New Lisbon, Wis, assignor to E.
Edelmann & Co., Chicago, 111., a corporation of
Illinois
Application May 9, 1936, Serial No. 78,919
(Cl. 265—45)
‘7 Claims.
drawings, and will- then be pointed out in the
My invention relates to improvements in hy
drometers, and particularly to syringe type
hydrometers having a transparent liquid receiv
ing and ?oat housing.
claims.
In the drawings:
Figure 1 is a view in perspective showing a
The primary object of my invention is to pro
vide, with a hydrometer of this type having a
transparent liquid receiving barrel, a suction bulb
associated with said barrel and having an open
ing therethrough to give access for cleaning the
10 barrel, and closure means for said opening to
permit the instrument to be used as an ordinary
syringe hydrometer.
Another object is to provide a hydrometer hav
ing a suction and compression bulb of substan
15 tially usual form, except that said bulb has an
opening therethrough substantially in line with
the opening of the transparent barrel so that
the ?oat can be removed and the transparent
barrel can be cleaned by the use of a brush,
swab, or other implement, without the necessity
of removing or disassembling the bulb, nozzle, or
other portions from the transparent and ordi
narily frangible barrel, together with means for
closing the opening.
25
Still another object is to so construct the bulb
and the closure means therefor that the bulb can
be applied to and used with substantially any
and all forms and types of hydrometers, thermo
hydrometers, and like instruments, without re-v
designing and reconstruction or rearrangement
of the parts.
Yet another purpose is to provide a closure
member for the clean out opening having asso
ciated therewith means to be interposed to pre
35 vent movement of a ?oat element into the bulb,
while at the same time permitting ready and
free use of the bulb for drawing in and expelling
a quantity of liquid desired to be tested in the
liquid and float barrel.
'
hydrometer having a bulb portion constructed "
in accordance with my invention.
Fig. 2 is an enlarged fragmentary longitudinal
sectional view through the bulb end of the hy
drorneter as illustrated.
Fig. 3 is a View similar to Fig. 2 showing a 10
modi?ed construction.
Fig. 4 is an enlarged fragmentary perspective
showing one form of closure manipulating
means.
Fig. 5 is an enlarged longitudinal fragmentary 15
sectional view illustrating incorporation of my
invention in a thermo hydrometer instrument.
Fig. 6 is a View similar to Fig. 2 disclosing an
other modi?ed construction.
Fig. 7 is a fragmentary sectional View illus~ 20
trating still another possible embodiment.
Fig. 8 is an enlarged perspective view showing
a modi?ed form of closure.
,
As the parts are illustrated in Figure 1, the liq
uid barrel l is made of a piece of cylindrical tubu
lar glass, or of other suitable transparent mate
rial, and a ?oat element 2, which can be of any
desired type and form and construction, is located
within the transparent barrel i. A nozzle por
tion 3 is ?tted at the intake end of the barrel l,
and a suction and compression bulb ii is ?tted at
the other end of the barrel i. This bulb 3 can
be of any desired form, construction, design and
shape, and can be made of any suitable material.
Ordinarily vthe bulb Ii will be made of elastic 35
rubber, or of similar material, and the bulb Ii is
?tted at the end of the transparent barrel i so
that the end of the barrel is entirely open and
unobstructed. The bulb ll has an opening 5
formed therethrough preferably substantially
Yet another object resides in so constructing
the closure member or closure portion that this
member or portion can be readily ?tted in place
and can be as readily and conveniently removed,
to thus give free and clear access for placement
and removal of a ?oat element and for insertion
axially aligned with the tubular opening of the
barrel I, and this opening 5 is of su?icient size
to permit insertion and withdrawal of a brush,
and withdrawal of a brush, swab, or other imple
ment used to clean the inner wall of the trans
made su?iciently large to permit insertion and
parent liquid barrel.
ment 2 here illustrated.
As the parts are illustrated in Figs. 1 and 2, I 50
have shown an internally screw threaded ring
8 inserted and secured within the opening of the
bulb 6, and the closure member for this opening
With the above and other objects in View,
which will be apparent to those skilled in the
art, my invention includes certain novel features
of construction and certain new arrangements
and associations of parts which will be herein
55 after more fully set forth in connection with the
swab, or other cleaning implement to be em
ployed in cleaning the inner wall of the trans
parent barrel l. Also, the opening 5 can be
removal of a ?oat element, such as the ?oat ele
is here illustrated as being a cap or plug ‘5. The
cap or plug ‘l is provided with external screw
2
2,124,080
threads to ?t the internal screw threads of the
ring member 6, and these mating threads can be
of straight type or of pipe thread type, it be
ing the purpose to so form the closure plug 7
and so associate this plug with the bulb 4 that
the opening into the bulb will be closed when the
bulb is in use, and the closure can be readily re
moved when it is desired to clean the barrel I.
Ordinarily, a perforated plug or other stop
10 means is ?tted at the end of the barrel l to keep
the stem of the ?oat 2 from moving into the bulb
4, and it will of course be appreciated that a per
forated plug or other separate element of this
character cannot here be readily used, since it is
15 essential that the adjacent end of the barrel i
be open and unobstructed when the closure ‘1 is
removed from the opening 5. With this in mind,
I provide a stem 8 extending from the closure
member ‘I and provided at its end with a per
20 forated ?ange portion or head 9, which ?ange
portion is disposed in such, spacing from the
closure member 1 that when this member 1 is in
place the ?ange portion 9 is disposed at the end
of the barrel I opening into the bulb 4‘, to thus
25 prevent movement of the stem or any portion of
the ?oat element into the bulb 4.
As the parts have been described, the ring 6
and the plug or closure member 1 can be con
veniently made of metal, or of any other suitable
material.
The stem 8 and extending stop portion
9 can be made of soft rubber, or of any other
suitable material, and these parts can be readily
and conveniently assembled with the closure
member ‘I in the manner shown in Fig. 2, or in
35 any other way that may be desired.
As shown in Fig. 4, the plug or closure mem
ber ‘I is provided in its outer end with spanner
openings l0, and a wrench member H has span
ner pins l2 thereon to be ?tted in the openings
40 Ill so that the wrench can be used to readily ro
tate the closure member ‘I in turning the screw
threaded portion thereof into the screw threaded
opening of the ring 6.
With the construction shown in Fig. 3, the bulb
45 I 3 is illustrated as having an internally screw
threaded ring M, of hard rubber or of other suit
able material, vulcanized or otherwise secured
within and around the clean out opening into the
bulb I3. The closure member I5 can be made of
50 vulcanized hard rubber, or of other suitable ma
terial, and the stem portion I6 and the extending
?ange-like stop I‘! can be conveniently made of
soft rubber, or of any other suitable material.
In Fig. 5 I have disclosed my invention applied
55 to and used with a thermohydrometer of the con
struction and form disclosed in Patent No.
1,965,456, granted July 3, 1934 upon an applica
tion of Leo Edelmann. In this adaptation, the
transparent liquid and ?oat receiving barrel I8
60 has a thermometer housing barrel i9 disposed
closely adjacent thereto and held in place by a
retaining member 20. The syringe bulb 2! is
?tted to the suction end of the transparent barrel
l8, and this bulb 2|, and the parts associated
65 therewith, can be conveniently constructed and
assembled and used in substantially the manner
described in connection with Fig. 2.
In Fig. 6 of the drawings the transparent bar
rel 22 has the syringe bulb 23 ?tted at the suction
70 end thereof, and this bulb 23 is provided with a
clean out opening 24. The bulb 23 is convenient
ly made of elastic or cushion rubber, and in this
instance rounded threads are cast; or otherwise
formed directly in the elastic and cushion ma
75 terial, within the opening 24. A closure member
25, in the form of a plug, has similarly shaped
rounded threads on the outer side thereof so that
this closure member 25 can be turned into the
threaded opening 24, and due to the inherent
elasticity of the material of the bulb 23, this
mounting and ?tting of the closure member 25
will ordinarily accomplish a proper and ?uid
tight closing of the opening 24.
The closure
member 25 has a stem 26 extending endwardly
therefrom and a perforated or notched ?anged 10
head 21 is carried at the inner end of this stem
26 to ?t within or be held adjacent to the open
end of the transparent barrel 22. The portions
25, 26 and 21 may be made as a unitary structure,
perhaps cast or otherwise formed from elastic 15
rubber, or with the plug portion 25, and perhaps
other parts also, of vulcanized or hard rubber
or of other suitable material.
In Fig. 7 the syringe bulb 28 ?tted at the suc
tion end of the transparent barrel 29 has a ta- _
pered clean out opening 30 formed therethrough,
and a closure member 3| is made in the form of
a stopper or cork, being preferably tapered to
follow the taper of the Wall of the opening 30.
This closure member 3| has a stem 32 extending 25
inwardly therefrom, and an outstanding ?anged
stop portion 33 is carried at the inner end of the
stem 3|. This stop portion 33 can have per
forations or openings formed therethrough, can
have the edge notched or serrated, and can be 30
formed in any desired manner to prevent posi
tive closure of the suction end of the barrel 29,
and to yet interpose a su?icient impediment to
prevent the stem of any portion of the ?oat ele~
ment 2 from passing into the bulb 28. As here 35
shown, the closure member 3| has a head portion
34 thereon to be grasped and manipulated in in
serting and removing the member 3|, and if de
sired, this head portion can be knurled or other
wise roughened, or can be provided with exten 40
sions or other formations to permit more ready
grasping and manipulation and handling.
As shown in Fig. 8, the closure member 35 can
be of any desired construction, and likewise the
stem 36 and the stop portion 31. The stop por 45
tion 31 is shown as an extending ?ange formation,
and as provided with perforations 38 to insure a
free and clear opening into the syringe bulb por
tion, but as stated these parts can be made in any
other desired manner. The closure member 35
has a ring portion 39 on the outer side thereof so
extending that the eye or opening 40 of the ring
can be employed as a loop to receive a nail or
other member and to suspend or hang the
hydrometer when not in use. At the same time,
the portion 39 is conveniently accessible to be used
as a handle or hand-hold portion for manipula
tion of the closure member 35.
From the foregoing it will be seen that I have
provided a bulb structure for hydrometers, and a 60
hydrometer construction, that will make it pos
sible to remove the ?oat and replace the same,
and to have access to the inside of the transparent
liquid and ?oat receiving barrel for swabbing the
same out or otherwise cleaning the inner wall of 65
the barrel, without the necessity of removing the
suction bulb itself or the intake nozzle portion, or
of disassembling any of the parts directly con
nected or associated with the transparent barrel,
thus facilitating the assembly and cleaning of the 70
instrument and materially lessening the possibili
ties of breakage of or damage to the liquid barrel
or any other parts of the instrument.
While I have herein shown and described only
certain speci?c embodiments of my invention and 75
3
2,124,080
have suggested only certain possible modi?cations
and changes in the form, construction, arrange
ment, assembly and association of the parts, and
in the materials to be used, it will be appreciated
that many other changes and variations can be
made without departing from the spirit and scope
of my invention.
I claim:
1. A syringe hydrometer comprising, a barrel, a
suction bulb‘ mounted at one end of said barrel,
said suction bulb having an opening therethrough
substantially in axial alignment with the barrel
to give access to said barrel for cleaning the same,
and means to close said opening.
2. A syringe hydrometer comprising, a barrel,‘
15
a suction bulb mounted at one end of the barrel,
a float in said barrel, said suction bulb being pro
vided with an opening to give access for cleaning
the barrel, a closure for said opening of the bulb,
20 and means associated with said closure to restrict
suction bulb is in use, a stem carried by said clos
ing means, and stop means carried by said stem
to thus be disposed adjacent to the end of the
liquid barrel.
5. A syringe hydrometer comprising, a liquid
barrel having a liquid intake at one end and hav
ing the other end open, a suction bulb- provided
with two openings ?tted with one of said openings
in communication with the open end of the liquid
barrel and the other opening aligned therewith 10
to permit cleaning of the barrel without necessi
tating removal of the bulb, means to close the
cleaning opening, means on the outer side of said
closure means for manipulation thereof, and
means on the inner side of said closure means to 15
interpose a stop adjacent to the end of the liquid
barrel.
.
6. A syringe bulb for use with a hydrometer
having a portion for attachment to a liquid barrel
of the hydrometer and provided with a clean out 20
movement of the ?oat into the bulb.
3. A syringe hydrometer comprising a barrel, a
opening located to be in alignment with the open—
suction bulb mounted at one end of the barrel and
provided with an internally screw threaded open
able closure for said opening.
7. A syringe hydrometer comprising, a barrel
25 ing aligned to give access for cleaning the barrel,
and an externally screw threaded plug to be ?tted
in the threaded opening to close said opening.
4. A syringe hydrometer comprising, a liquid
barrel having a liquid intake at one end, a suction
30 bulb having aligned openings therethrough ?tted
with one of the openings in communication with
the barrel and the other opening aligned there
with to give access to the barrel for cleaning,
means to close said cleaning opening when the
ing of the barrel as thus attached, and a. remov
having a liquid intake at one end, suction means
at the other end of said barrel and. provided with
an opening aligned to give access to the barrel, a
?oat in said barrel, a closure removably ?tted to
close the opening when the hydrometer is in use,
and a stem on the inner side of said closure
extending to restrict movement of the ?oat from
the barrel.
PETER PETERSON.
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