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Патент USA US2118232

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May 24, 1938.v
271 l
E' W. ROBERTS
GAS COCK
Filed July 20, 1936
FIGA.
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[N VEN T0R
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BY
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EARL w. RoaERTs
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A TTOZNE ys
Patented May 2.4-, 1938
2,118,232
UNirEo s'rArss~A'rEN OFFICE
GAS COCK
Earl W. Roberts, Detroit, Mich., assignor to The
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Roberts Brass Manufacturing Company, De
troit, Mich., a corporation of Michigan
Application July 20, 1936, Serial No. 91,602
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9 Claims. (ci. 251-154»
This invention relates generally to gas cocks
Figure 2 is a view similar to Figure 1, but taken
of. the rotary plug type having at least one main .at substantially right angles theretoïl
passage and one restricted or smaller passage for
Figure 3 is a sectional view taken substantially
alternately conducting gas to one or more outlets
cn the line 3-3 of Figure 2;
for supplying high and low flames respectively,
Figure 4 is a sectional view taken on the line
and refers more particularly to an improved â-t of Figure 3;
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means for regulating or stopping the movement
Figures 5 and 5A respectively are diagrammatic
of the rotary plug that controls the flow of gas views in section showing the position of the parts
through said passages.
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when the transverse passage in the plug is in
One of the essential objects of' the invention is . registration with the inlet passage in they casing;
to' provide a gas cock of this type wherein a single
Figures 6 and 6A respectively are views similar
stop element such as a pin or its equivalent to Figures 5.and 5A, but showing the parts when
carried by the operating stemfor the rotary plug the transverse passage in the plug is in regis
is engageable with a slot in the plug casing when tration With one of the restricted passages in the
it is desired to open and close the restricted pas
sage and is engageable with a slot in a cap for
Figure 7 is a group perspective view of the parts
said casing when it is desired to open-and close of my gas cock except the casing and handle;
the main passage.
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Figure 8 is a fragmentary side elevation of the
Another object is to provide a gas cock wherein gas cock with the rotary plug in fully openedy
the slots aforesaid are arranged in connecting position;
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stepped relation with the connection therebe
Figure 9 is a View similar to Figure 8, but show
tween at the proper point to receive the stop ele y ing' the rotary plug inthe simmering position.
ment when the main passage is fullyopened. As
Referring to the drawing, I isfthe casing, 2 is a
a result the main passage will remain open during substantially cup-shaped cap for one end of said
casing;
25 and unaffected by movement of said stop element
from one stop to the other.
Another object is to provide a gas cock wherein
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casing, 3 is the rotary plug, and 4 is the operating 25
handle of a gas cock embodying my invention.
vAs shown, the casing I is a casting andhas a
the operating stem is slidably but non-rotatably longitudinally extending tapered socket, 5 for the
connected to the rotary plug by engagementof , rotary plug 3, main inlet and outlet passages S
30 the stop element with `a slot in the plug, and is ' and 1, and restricted passages 8 and 9 for gas. 30
urged outwardly by a suitable spring in the plug. Preferably the inlet passage '6 extends trans
_ Hence the stem must be positively moved in by versely of the casing from the outer end of an ex
hand against the tension of said spring when the teriorly threaded laterally projecting nipple I0
to the socket 5, while the outlet passage 'I ex
, stop element is in registration with the connec
35 tion aforesaid between the slots to permit such tends longitudinally of the casing from the bot- 35
pin to enter the slot in the casing when it is tom of said socket 5 to a longitudinally extending
exteriorly threaded nipple II. 'I‘he usual aper
desired to turn on the gas to the restricted pas
sage, andwill be moved out by the spring when tured cap I2 is preferably mounted Yon said
the s`top element is returned to registration ‘with
40 the connection between the slots, whereby said
stop element will be moved into the slot in the
cap where it is free to move should it be desiredl
to turn the plug to fully closed position.
45
- Another object is to provide a gas cock' that is
relatively simple in construction and can be
manufactured at a comparatively low cost.
Other objects, advantages and novel details of
construction of this invention will be made more
.50' apparent as this description proceeds, especially
nipple
II.
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The restricted passages 8 and 9 cooperate with 40
a laterally projecting socket I3 at one side of the
casing to form a by-pass for gas from the inlet
passage 6 to the socket 5. Preferably the re-stricted passage 8 extends between the inlet pas
sage B and socket I3, while the passage 9 extends 45
from the socket I3 to the socket 5. Il is a needle
valve' adjustable in the socket I3 for controlling
the ñow of gas from the passage 8 to the passage>
9, and I5 is a cap for the top end of said socket I3.
The rotaryy plug 3 is provided in its inner end 50`
when considered in connection with the accom
with a longitudinally extending passage I6 that `
panying'drawing, wherein:
is in constan*l registration with the outlet passage
.
F Figure l is a side elevation of a gas cock em
1 in the casing and is provided at the closed end
bodying my invention and showing the ,rotary
of said longitudinal passage I6 with a trans- .
55 plug in fully closed position;
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versely extending passage I1 that is adapted upon 55
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2,118,232
rotation of the plug to communicate with and
one of the passages aforesaid and engageable
receive gas from the inlet passage 6 and the re
with the slot in the cap when it is desired to open
and close the other passage.
3. A gas cock having a casing provided with a.
main passage and a restricted passage for gas, a 5
stricted passage 8 in the casing. At its outer end
the plug 3 is provided with a socket I8 for the
reception of a coil spring I 8 and the stem 20 of the
operating handle. Preferably the spring I9 is
between the bottom of the socket I8 and the inner
rotary plug in the casing having a passage adapt
ed upon rotation of the plug to communicate alter
nately with said main passage and restricted pas
end of said stem and constantly urges the latter
sage, a. cap for the plug mounted on the casing,
outwardly, while the stem 20 has an integral
there 10
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10 annular flange 2| engageable vwith the top 22 of '_ said casing and cap having connecting slots
the cup-shaped cap-to limit such outward move,
ment. In this connection it will be noted that the
cap 2 is provided at substantially diametrically
opposite Asides thereof with flanges 23 that are
15 fastened by screws 2l to suitable flanges 2S of
the casing. -
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In the present instance the stem 28 of the
handle carries a transversely'extending pin, 28
that slidably engages longitudinally extending
20 slots 21 at diametrically opposite sides of the
in arranged in stepped relation, and means con
trolling the rotary movement of the'plug includ
ing an operating member slidably butj non-rotat
ably connected to the plug, said connection includ
ing a pin carried by said operating member op
erable during turning movement of the plug to
move in either of said slots and operable’ during '
sliding movement of the operating member to
move from one slot to the other, said pin being `
engageable with the slot in the casing when it
socket I8 in the outer end of the rotary plug and _ is desired to open and close bne of the passagesl
is alternately engageable with circumferentlally aforesaid and engageablel with the slot in the cap
extending slots 28 and 29 respectively in the ca‘s- y when it is desired to open and close the other
ing |\ and cap 2. As shown, the slots 28 and 29
4. A gas cock having a casing provided with
are arranged in stepped relation with a connect
ing slot 30 at the proper point to receive the pin a main passage and a restricted passage for gas,
26 vwhen the passages 6 and I'l are in registration. a rotary plug in the casing having a passage
Preferably the arrangement is such that the pin adapted upon rotation of the plug to communicate
26 is movable in the slot 29 in the cap when it is alternately with said main passage and restricted
desired to open and close the inlet passage 6 and passage, a. cap for the plug mounted on the casing,
is movable in the slot 28 in the casing when it is said casing and cap havingcircumferentially ex
desired to open and close the restricted passage 9. tending connecting slots, and means controlling
Inasmuch as the spring I9 is between the bottom the rotary movement of the plug including an op
of the socket I8 in the plug and the inner end of erating member slidably but non-rotatably con
the stem 20, it is apparent that'the stem has nected to the plug, said connection including a
to be pushed in -against said spring when the pin pin carried by said operating member and alter
26 is in line Awith the connecting slot 30 to cause nately engageable with the slots in said casing»
said pin to movel from the slot 29 to the slot 28, and cap, the arrangement of said slots being such
and that the said spring will move the stem 20 that said pin is engageable with opposite ends of
said slots during rotary movement of the said
outwardly when the pin 26 is in line with the con
nectìng slot 30 to -cause said pin to be moved from plug and is movable from one slot to the other
during sliding movement of the operating mem
the slot 28 to the slot 29. Furthermore, the ar
rangement is such that the movement of the pin ber relative to said plug, said pin being engageable
26 in either direction in the connecting slot 80 ' with the'slot in the casing when kit is desired to
may be effected while the passages 6 and I'l are open' and close the restricted passage and en
gageable with the slot in the cap when it is de
in registration.
sired to open and close the main passage, the
What I claim as my invention is:
1. A gas cock having a casing provided with a connection between the slots being at the proper
point to receive the pin when the main passage
main passage and a restricted passage for gas,
a rotary plug in the casing having a passage is fully opened.
5. A gas cock having a cast metal, casing pro
adapted upon rotation of the plug to communi
passage.
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cate alternately with said main passage and re
stricted passage, a, cap for the plug mounted on
55.
said casing, said -casing and cap having connect
ing vslots therein, and means controlling the ro
tary movement of the .plug including an operating
member for the plug, and means carried by said
operating member engageable with the slot in
said casing when it is desired to open and'close
60 one of the passages aforesaid and engageable
_with the slot in the cap when it is desired to open
and close the otherpassag‘e.
.
2. A gas cock having a casing provided with
a main passage and a restricted passage for gas,
65 a rotary- plug in the casing having a passage
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40
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vided witha main passage and a restricted pas
sage for gas, a rotary plug in the casing having.
a passage adapted upon rotation of the plug to
communicate alternately with said main passage
and restricted passage, a sheet metal cap for the
plug mounted on the cast metal casing, said cas
ing and cap having offset circumferentially ex
tending slots therein, and means controlling the
rotary movement of the plug including an operat
ing member for the plug, and a pin projecting
laterally from said operating member movable
lengthwise of the slotV in the casing when it is
desired to open and close one of the passages
aforesaid and movable lengthwise of the slot in 65
adapted upon rotation of the plug to communicate- » the cap when it is desired to open and close
alternately with said _main passage and restricted the other passage.
6. A gas cock having a casing provided with two
passage, a cap for the plug mounted on the cas
ing, said casing and cap having circumferentially passages for gas, a rotary plug in the casing hav
extending connecting slots arranged in stepped ing ~a passage adapted upon rotation of the plug 70
to communicate alternately with said passages,
relation, and means controlling the rotary move
ment ci the plug including an operating member a cap for the plug mounted. on the casing, said
for the plug, and a stop element carried by said > casing and cap having offset circumferentlally
operating member engageable with ythe slot in 'extending slots therein, and means controlling
75 said casing when it is desired to open and close
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the rotary movement of the plug including an op
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2,118,282
erating member for the plug, and a. pin projecting
laterally from said operating member movable
lengthwise of the slot in the casingwhen it is
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cumferentially extending slots, means controlling
desired to open and close one of the passages
the rotary movement of -said plug including an
operating member for the plug, a pin projecting
laterally from said operating member and ex
aforesaid and movable lengthwise of the slot in
the cap when it is desired to open and close the
tending through said slots so as to be visible, said
pin being movable lengthwise of one of said slots
other passage.
when it is desired to open or close one of said j
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7. A gas cock having a casing provided with two passages aforesaid, and movable lengthwise of
passages, a rotary plug in the casing having a the >other of said slots when it is desired to open
10 passage adapted upon rotation of the plug to -_ or close the other passage.
9. A gas cock having a casing provided with two
communicate alternately with said passages, a cap
for the plug mounted on the casing, said casing passages for gas, a rotary plug in the casing hav
having circumferentially spaced stop means, said ing a passage adapted upon rotation of the plug
v`-cap having circumferentially spaced stop means, to communicateA alternately with said passages
said casing having axially spaced communicating
15 and an operating member for said plug having
stop means engageable with said stop means of circumferentially extending recesses, means con
said cap when it is desired to open or close one trolling the rotary movement of said plug includ
of said passages aforesaid, and engageable with ing anoperating member for the plug, and means
said stop means of said casing when it is desired carried by said operating member movable length
20 to open or close the other passage.
8. A gas cock having a casing provided with two
passages for gas, a rotary plug in the casing hav-V
ing a passage adapted upon rotation of the plug to
communicate alternately with said passages, said
25 casing having axially spaced communicating, cir
Wise of one of said recesses when it is desired to 20
open or close one of said passages aforesaid, and
movable lengthwise of the other of said recesses
when it is desired to open or close the other pas
sage. ,
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EARL W. ROBERTS.
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