US1333681A

US1333681A - Control apparatus

Info

Publication number: US1333681A
Application number: US89230A
Authority: US
Inventors: Lynn G Riley
Original assignee: Westinghouse Electric and Manufacturing Co
Current assignee: CBS Corp
Priority date: 1916-04-05
Filing date: 1916-04-05
Publication date: 1920-03-16
Anticipated expiration: 1937-03-16

Description

L. G. RILEY.

CONTROL APPARATUS.

APPLICATION FILED APR. 5, 191s.

`1 ,333 ,681 Patented Mar. 16,1920.

f5 g muur/0N 1I 1I L I lWITNESSES: iNV ENTOR ulm? ATTORNEY me murac'iuma conm, 1 cnrom'r'IoN or PENNSYLVANIA.

v citizen vof theUnited States, and a resident and State 0f-v of1 vWilkinsbu in-the county of Allegheny new and useful Im rovement4 in ,Control- 'APP-ratlls, `of. whic the following is an '.SPeC-Cation, j y

Myinvention relates to control apparatus and particularly t0 magnetically -actuated. A valves for controllil'lgl fluid under pressure.

' The object-.of my fmvention is to rovide va valve of .the above-'indicated c in which the actuating mechanism is disposed".

in a metallic fluid-tight casing. Another object of my. invention. is to prol v"vide avmagnet valve Aoffthe above-specified ltype that may bemanually actuated.v-

A further object of mv invention. is to rovide a normally lui tight valve cap aving'. actuating means extending therei through.

Heretofore, in 'magnet valves, and particularly in valves having a throttled ex-j haust, 1t has been proposed to provide -a fluid-tight'seal composed of brous ymaterial for inclosing the moving parts vofthe valve. My invention provi es a metallic iiuid-tight'seal for magnet valves of the Figure 1 of he aecompanyi `a top'plan view of 'a ma in .my invention, and i 2 is a sectional type specified and a `.means for manually actuating the valve.

et va ve embo y si e view on the line II- I'of Fig. 1,`

A preferred form of magnet valve shown -in the drawing comprises a case 1, which is preferably of magnetizable materiahghavs lng a bottom portion that is -vprovided with a valve mechanism 2 'and an upperv portion which incloses acoil 3, a magnetizab e armature 4 that is adapted tobe actuated by the coil 3, and an improved form of fluid-- tight seal 5 for inclosmg the movable'parts of the structure. The magnet valve also embodies an improved form of cap 6 for the case 1.

The bottom portion of the case -is rovided with a supply port 7 -through w ich fluid, .under pressure,l is admitted, a' delivery port 8 through which the uid `iovvs to a device to be yactuated thereby', and an ex'- v haust port 9 through which fluid from the device to be actuated is released into the at. mosphere. :The flow of fluid from the 'sup.

n I l ennsylvama, have mvented asition by the sprin drawin is."

urana'r'usgzf sp'emaammma nan. 5 'Patented Mal-.16,2192o. appnmoa and april. s, 191s, seriali-io. 189,230.'

Yj ply :7 tothe delivery port 8 is by -way- The flow of fluidfrom thedelivery port 860 to the exhaust-port 9` 'is by Way of a valve Y I 12 whichis normally biased to an open'po; 11 andis o}`)erativel`y`\l connectedto the va ve' 10 so that when one valveis opened,-th'e-,other valve is closed. 65

The exhaust port-9 isi rovded with a fluidthrottling device13 w ich adjustably regu i' lates the rate of escapeof fluid through the exhaust port. 9.

The upper portion of thejcase 1 com- 70 .prises a main; recessedl body ortion and a top portion 14 that `is vsecure lto the body portion by screws 15. -A cylindrical armature-guide 16 is preferably composed of .mznetizable material and may be consid# er asa portion ofthe top 14. A portion at each end of the guide 16 is threaded .to

engagethe sealing member 5 and the capmember 6. A non-magnetizableshell 17,

`which is disposed within the guide 16, in; 'I

sures a `suitable bearing surface for the armature 4 and prevents the stickingthereof caused by resldual magnetism 'in the flux path. The cap member 6 comprises a hexagonal portion that is internally threaded '.to engage the guide member 16, a. disk portion, arecessedportion 18 and a prorjecting portion 19; -A pin 20 having a valve on the lower vend thereof is positioned in al perforation in the projecting portion '19 of 90 the cap and is normally biased to a closed position by -a spring 21. The lowermost portion of the valve on the pin 20 is adapted to engage the armaturel 4, when depressedj and' to thereby actuate the valves e5 10 andl 11, in a manner to be hereinafter described. The spring 21 is positioned, within` l. the recess 18 and is secured to the pin 20l by a suitable washer and cotter pin.'

The coil 3, which is inclosed in the upper portion of the case 1, is ofa familiar type f that is adapted to be energized from terminal members 21,y each of which is insulated .from the case 1 by 'an insulator 22. A hol- ""i low core member 23 is disposed within the '105' 'coil 3 and `has the lower end thereofsecured t0 the .bottom portion of the'case 1. A rod member 24, t'he lower end of which constitutes a. portion of the Valve 12 and the up-` per end of which extends above the core 23, 110

is movablypositioned Within the hollow core 23 and is adapted to be actuated by .theY

armature 4. A threaded disk 25 is secured to the upper end of the core 23 and is-adaptsite sides of a recessed disk portion. The

cylindrical portion having the larger diameter is internally threaded to engage the disk 25, and the smaller cylindrical portion. is internally threaded to receive the guide member 16, which is secured thereto by suitable pins 26. v

A magnet valve of the form herein described is electrically actuated by 4energizing the coil 3 which produces magnetic flux in a :path extending from the upper end of the core 23 through the armature 4, the ,l

guide member 16, the case top 14 and the case 1 to the lower end of the core 23. The energization of the armature 4 causes the same tobe'attracted toward the core 23 and, since the armature bears upbn the rod 24, the movement of the armature opens the valve 10 andcloses the valve 12, thus admitting fluid to the device to be actuated.'

The denergization of the coil 3 causes the armature 4 to be immediately released, by reason of the interposed non-magnetlc sleeve 17, land the valve 10 to be closed by the spring 11. l This action establishes a.

' connection from the vdelivery port 8 to the exhaust port 9 and, since the fluid cannot escape through the hollow core 23 to the atmosphere by reason of the sealing member 5, the rate 0f exhaust may be regulated by properly adjusting the throttle' 13 whereby any desired lag in the operation of the device to be actuated may be secured. To manually actuate the valves 10 and 12, the pin member 20 is depressed which opensthe valve 10 and closes the valve 12 in the same manner as when the coil 3 is energized. As soon as the pin. 20 is released, the spring 21 biases4 the valve on the pin 20 to a closed,

position and thereby prevents the subsequent escape of fluid.

VThe inclosing member 5 is made of nonmagnetizable material in order that it may not provide a low-reluctance path for the flux from the core 23 to the guide mem' ber 16.

Although I have described my invention in a simple and preferred form, it is not necessarily so -limited, and I desire, there- The., sealing i fore, that onlyv such limitations shall be imposed as .are indicated ,in the appended claims.

I claim as my invention: y

l. The combination with a coil, a hollow core for the coil, a rod disposed within the hollow core, an armature adapted to be energized by the coil and bearing upon the said rod, a guide for the armature, a'fluidcontrolling valve. actuated by the rod, and a casefor the coil, armature and valve, of a cap 'for the 'Case having a perforated recessed portion, a valve Within the perforation, resilient means disposed within the recess for normally biasing thelast named valve to a fluid-tight position, and metallicmeans joining the said core and preventing the escape of fluid.

2. The combination with a coil, almagnetizable core for the coil, a Huid-controlling. valve, a movable armature for actuating the guide for valve, a magnetizable case for inclosing the said elements and constituting a return path for the fiuX from the coil, and guiding means for the armature associated with the case, of meansy for j oining said core and said guiding'means comprising non-magnetizable vmetallic means located beyond one end of said coil to prevent the escape of fluid from that end. i

3. The combination with a coil, a magnetizable core for the coil, a fluid-controlling valve', a movable armature for actuating the valve and guiding means for the armature, of single metallic means detachably joining the guiding means and the core for preventing the escape of fluid from the said valve, and a casing for the various elements.

4. The combination withI a coil, a magnetizable core for the coil, a fluid-controlling valve, a movable armature for actuating the valve, a case for the said elements and guiding means for the armature associated with the case, ofmetallic means detachably joining the guiding means and core within the case for preventing the escape of fluid.

5. The combination' with a coil, a core for the coil, a movable armature vactuated by the coil, a Huid-controlling valve actuated by the armature, a" case for the said coil,.core, armature and valve, and guidin means for the armature associated with the *l case, of a ,cap for the case surrounding said guiding means and having means normally biased to a fluid-tight position for manually actuating the valve.

6.' The combination with a coil, a core -for the coil, a movable armature actuated by the coil,'a Huid-controlling valve actuated by the armature, a case'for the coil, core,

armature and valve, and guiding means for the armature associated with the case, of a cap for said'case surrounding said guiding means and having means normally blased to .a Huid-tight position for manually actuating the armature, and metallic means associated with the core and guidin means for preventing the escape of lui 7. The combination with a coil, a magnetizable core therefor, a Huid-controlling valve located near one end of said core, a movable armature for actuating the valve and located near the other end of the core and a magnetizable case having a bottom portion and a top portion for inclosing the c oil, core, vvalve and armature, of guiding means 'for said amature contained within said top portion, a disk member secured to said core, and a non-magnetizable member rigidly surrounding said guiding means and said disk member;

8. The combination with a case and a cap therefor, of a coil and an armature therefor contained within said case, a valve located within said case and lcontrolled by said armature guiding means for the armature, and

. able means and said cap forming a se-al for preventing the escape of fluid from said case.

9. In a valve mechanism, a 'magnetizable case, a coil and an armature therefor contained within said case, a valve controlled by said armature, a non-magnetizable member Within said case and havlng a fluid-tight connection to said coil, a non-magnetizable shell secured to said member and lying Within said case, said shell serving as a guide for said armature and a magnetizable cap hav-V ing a fluid-tight connection to said case.

' In testimony whereof, I have hereunto subscribed my name this 25th day of March LYNN G. RILEY.