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Патент USA US2399856

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May 7, 1946.
2,399,856
A. L. COGER
MAGNETIC METER DRIVE
Filled May 12, >1944
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IN VEN TOR.
BY
ATTDRN EYS
Patented May 7, 1946
2,399,856 7
UNITED STATES PATENT OFFICE
. Appliczilii
$235,372
30km. (CL 73-257)
Referring to the drawing in detail A denotes
I The invention relates to a meter driving mech#'
. generally in a fragmentary way the cylindrical
anism, and more particularly to magnetic meter
meter casing, having a body Iii made or non
drive device.
‘
'
The primary object of- the invention is the '
provision era device of this character, wherein
.
magnetic material, provided peripherially thereof
at diametrically opposite sides with inlet and out
let nipples EI and i2, respectively, for the inflow
the motion of the driving mechanism is trans
and out?ow of water or other ?uid, in this in»
mitted to the indicating mechanism through a
stance. The bodvhas a removable cover plate
magnetic coupling, which is con?ned away from
ii for giving access to the interior thereof, the
the course of water, where such mechanism is
being sealed thereto in ‘any desirable man
used in a water meter, thus avoiding any dam— 10 plate
net, as well as removably secured in such man
age resultant from water or moisture contact
with the said mechanism.
-
-
ner.
I
Within the body i0 is a two-part or sectional
cage l4 securely seated at 25 within said body
sion of a device of this character, wherein the
and, constituting a measuring chamber in of
construction thereof is entirely novel and as 15
cylindrical form ior ?uid. the latter being admit
sures a perfect working of the meter in that its
ted thereto through an opening ll tl-ierein from
mechanism can be sealed so that no moisture
the inlet ii and discharged therefrom through
can enter and condense on the glass to prevent
an opening it therein directly to the outlet it,
easy reading of the indicator mechanism, the de
vice
usable with all kinds of measuring de 20 The outlet G2 has the walls 18 and til, respectively
in association with this opening 58 to prevent re
vices of the reading meter types.
turn ?ow of i‘iuidtothe inlet i l‘.
A iiu'ther object of the invention is the pro
.The‘cage it is provided with a. central abut
vision of a device of this character, wherein the
ment 2| and a division plate or bridge piece 22,
- unique set-up enables the use of permanent mag
separating the inlet opening II on one side and
nets and the stuiiing boxes employed in the pres-‘
the outlet opening it on the other side.
out day meters, are eliminated, and moisture is
Within the cage M is a balanced piston 23,
entirety excluded from the driving and indicator
which
does not rotate, but glides or oscillates
mechanism in association with eachother.
back
and
forth with its path or motion controlled
A still further object of the invention is the
provision of a device of this character, which is 30 by a piston pilot 2t, always moving, however, in
the same direction in which the water ?ows, this
simple in construction, thoroughly reliable and
pilot 24 being movably engaged in a slot 25 in
emcient in. operation, strong, durable, easy of
the cage H. The piston has s. horizontal web
operation, assures perfect coupling between the
26 carrying a socketed post 2‘! in the center, and
driving and indicating mechanisms of meters,
is
slotted to clear the division plate 22. The post
35.
and inexpensive to manufacture and install.
21, extending below the web 26, guides the piston
Another object of the invention is the provi
With these and other objects in view the in- '
vention consists in the features of construction,
combination and arrangement of parts as will be
23 within the measuring chamber i5 around a
circular stud 28 in the lower abutment wall. '
The post 21 extends above the web 26 and has
the accompanying drawing, which discloses the 40 fitted in its upper open end for ?lling the socket
in the said post, a permanent magnet 29 for
preferred embodiment of the invention, and
_
>
travel
with the piston 23. An upper well. 30 is
pointed out in the claims hereunto appended.
created
for the post 21. by a bonnet extension 3|
In the accompanying drawing:
integral with and depending from across parti
Figure 1 is a vertical longitudinal sectional
view through the driving mechanism of a meter 45 tion 32 in the upper portion of the casing Hi, this '
extension 3| being formed with a thin iloor 23
showing the device constructed in accordance
with which contacts the magnet 25, andalso a.
with the invention installed therewith.
magnet 34 ?ttlngiwithin a rotor 35, rotating on
Figure 2 is a sectional view taken on the line
an axle 38. The axle 38 rises from the ?oor 33,
2—2 of Figure 1 looking in the direction of the
50 and this rotor 35 is the driving element for in
arrows.
.
dicating mechanism not shown of the meter. The
Figure 3 is a sectional view showing the bear
magnet 34 is eccentrically ?tted into the rotor,
ing set-up in the coupling.
while the magnet 28 is‘ centrally oi the piston,‘
Similar reference characters indicate corre
so
that the attraction of these magnets 29 and
sponding parts throughout the several views in
65 N e?ects a magnetic coupling between the driv- the, drawing.
1
' hereinafter more fully described, illustrated. in
2
9,399,858
in: mechanism and the indicating mechanism oi.‘
operating the rotor with said piston in its move
the meter.
The bonnet extension 3! has a ?uid tight or
?uid seal connection at at between the same and
ment.
2. A fluid meter having magnetic coupling for
?uid driving mechanism and indicating mecha
nism of a meter, comprising a casing made of
non-magnetic material, a sectional cage securely
. the cage H so that no moisture or ?uid can make
contact with the rotor and adjunct parte 0! the
indicating mechanism of the meter.
,
- seated within said casing and forming a measur
The openimge W and it are such that, although
they continually change in. area, they are always
ing chamber, a cross partition formed in said
casing, having a bonnet extension formed 111-
open so that water or ?uid has a free ?ow through 10 team} therein and depending therefrom, opposed
‘the meter at all times. The displacing action of
permanent magnets, said extension. being formed
the piston 23 continues % long or ?uid is passmg
with a thin. iloor separating mid opposed per
m'anent magnets, a rotor i'or the indicatihg mech
anism and having one oi the magnets dioposed
through the meter.
The rotor at and the {ti-£18 3t?‘ are fitted with
anti-friction bearings it and the diviaion ‘plate 15 eccentrically therein and adapted to be ottmwted
22 is held securely in place by spring pressm'e not
by "the other magnet, a balanced. piston gliding
shown without the use of screws orsolder, and
osciliatingly in the measuring chamber and. hav»
such plate 22 id of uniiorm. thickness. The pres
ing the other magnet 10:: travel. in. the both of.
sure on both older; oi the web is ‘equalized result
the rotor magnet for attracting" it thereto and.
ing in a piston that practically glides between the 20 operating the rotor with said piston in its move»
top and bottom hall’ oi’ the chamber with mini_
ment, said cage having inlet and; outlet openings
mum friction and wear,
‘
101‘ the ?uid separated from each other.
3. A ?uid meter having magnetic coupling for
It is oi’ course understood that the magnetic
coupling is uoeable with all types oi mctera and
this is contemplated within the scope of the pres- '
ent invention, as loll properly within the terms
of the claimo hereunto annexed.
What la claimed is:
1. A ?uid meter having magnetic coupling i’or
?uid driving mechanism and indicating mecha 30
nism cl’ 9. meter, comprising a casing made of
non-magnetic material, a sectional cage securely
seated within said casing and forming a measur
ing chamber, a cross partition formed in said
casing, having a bonnet extension formed integral
therein and depending therefrom, opposed per~
?uid driving mechanism and indicating mocha
nism oi a meter, comprising a, casing mode of
non-magnetic material, a, sectional cage moureiy
seated within said casing and forming o. meosun
ing chamber, a cross partition formed in said cas
ing, having a bonnet extension formed integral
therein and depending therefrom, opposed ber~
manent magnets, said extension being formed
with a thin ?oor separating said opposed perma
nent magnets, a rotor for the indicating mecha
nism and having one of the magnets disposed
35 eccentrically therein and adapted m be attracted
manent magnets, said extension being formed
by the other magnet, a balanced pismn gliding
oscillatingly in the measuring chamber and hav
with a thin ?oor separating said opposed per
ing the other magnet for travel in the path of
manent magnets, a rotor for the indicating mech
the rotor magnet for attracting it thereto and op
anism andhaving one of the magnets disposed 40 erating the rotor with said piston in its movement,
eccentrically therein and adapted ‘to be attracted
said cage having inlet and outlet openings for the
by the other magnet, and a balanced piston glid
?uid separated from each other, and a division
ing oscillatingly in the measuring chamber and
plate between the openings in the cage.
having the other magnet for travel in ‘the path
of the rotor magnet :for attracting it thereto and 45
ARLIS L. (room.
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