US1677598A

US1677598A - Valve

Info

Publication number: US1677598A
Application number: US162529A
Authority: US
Inventors: Resek Marc
Original assignee: Perfection Stove Co
Current assignee: Perfection Stove Co
Priority date: 1927-01-21
Filing date: 1927-01-21
Publication date: 1928-07-17
Anticipated expiration: 1945-07-17

Description

M. RESEK VALVE July 17, 1928. 1,677,598

Filed Jan. 21, 1927 2 Sheets-Sheet l atto: nmpf July 17, 1928. r 1,677,598

M. REsEK VALVE F119@ Jan. 21, 1927 2 sheets-sheet 2 we ,M6/wwf @www 4 Patented July 17, 1928.

UNITED STATES PANY, E CLEVELAND, oHIo, AcoEEoEATIoN or omo. l

VALVE.

Application led January 21, 1927. SerialL No. 162,529.

John Alger Dahlstrom and myself on De 1Q cember 3, 1926, Serial No. 152,355. l

Certain objects of my present invention are to simplify, cheapen` and render more substantial and durable the valve operating mechanism, and to so construct Vit as to facilitate production and lassembly of the parts, and expedite manufacture.

Further objects are to provide a valve ofl the class at hand that is especiallyeasy of operation; that may be very accurately acll0 justed', and that vvill eiectually vmaintain its adjustment against reasonable accidental forces tending to disturb it, such as jars or` Vibration. y y

Another object is to design the valve-operating mechanism so that metal stampings may be employed almost exclusively in its production, and so that the parts of thev mechanism will interfit and thereby maintain their assembled condition androperativel 3" connections With the'use of a minimum number of fastening means.

The foregoing objects are attained in the embodiment of the invention illustrated in the accompanyingdrawings wherein Fig. 1 is a central vertical section through the valve and through a burner associated With it; Fig. 2 is a section on the line 2 2 of Fig. 1; Fig. 3 is a bottom plan View;y Fig. 4 is an outside face view of one of the cam 40 sections; Fig. 5 isa section on the line 5 5 of Figli; Fig. 6 is al fragmentary side eleva-l tion of the valveloperating spindle; Fig. 7 is asectionfon the line 7-7-7 of Fig. 6; Fig. 8 isa side elevation of one of the'locking plates used in the ,Connection between the cam and spindle; and Fig. -9 is an enlarged sectional detail of such connection.

Describing the parts by reference characters, 1 is the valve casing which, inthe present instance, is cast integral With-Aa manifold 2, and rising from the casing is a hollow boss-3 to which is fitted the nec-k` 4 of a burner 5. Surrounding the inner end of the bore of the boss 3 is a tapered valve seat 6, and the Wall of the casing oppositey said seat isprovided'with an opening 7 that 1s counterbored to provide a shoulder 8.`

, Fitting Within the counterbore of the opening 7 and against the shoulder 8 is a disk 9 from the center of which rises atubular guide 10. Thel guide is" shown as secured to the disk 9 by projecting `its re-v duced lower end through al hole in the disk and then `peening over or upsetting said end. Slidable Within ythe guide 10 is a valve stem ywhich carries, preferablyloosely, at

its upper end a valve member 13 for cooperj ation with the `sea-to. The stem 12 `is provided adjacent its lower end with Ya circumferential 'groove 14. Y Y i y' Disposed across the bottom ofthe casing ENT OFFICE. f

l MAEC RESELOE CLEVELAND HEIGHTS, oHIo, AssIeNoa To PEEEEcrIoN sTovEcoM- 1 is the base of aninverted U-shaped braclr`` et 15` andthe bracket is adapted to be se-f' curedto the casing by screws .16' that are extended throughvholes in the base andare threaded into ears 17 of the casing. Rotatably supported Within apertures'in the

end branches

18 and 19 ofthe` bracket-:.15 is a spindle 20 tothe ,forward Aend of which is secured.' an operating handle 21.

A' cam, designated generally kby the ,111.1- meral 22, is secured tothe spindle 20, below the valve 4stem 12.v This cam yis shown as formed of'sections 23 and 24, preferably con.- stitutedof sheet metal s tampings, Veach bemg a true counterpartof'the other, i. e.,

identical With the other excepting that one is right hand and the otherv is left hand. Each section is formed with aperipheral flange 25, andwith a depressed hub 26, ythe latter being punched' Witha keyhole slot 27, as

shown most clearly yin Fig. 4. 'The depression of the hub forms a cavity 28 in the outer face of the section.l Where the cam vis located on' the spindle 20. the latter is formed on its. opposite sides with slots vthatare of a Width substantially equal to twice the thickness yof the metal from which the cam sections 23 and.24 are formed; andthe cir,y cular end ofthe. keyhole Aslotv 27 is approxi-v mately the same in diameter as -t-he spindle, While the yrestricted end :of the slot is ,prac-.f tica'lly as Wide asthe distance between thef bottoms of the opposed slots 3Q.

1n assembling Athecaln `and spindle, the latter is extended through the enlarged ends' of theslotsjof the cam sections While said sections are turnedrin proper relationfto each other. VViththe sections pressed rmv ly together, the slots l30 of the spindle'arey brought into register with the keyhole slots of the sections and the spindle is then shifted laterally into the restricted ends of the slots, the opposed edges of said restricted ends entering the slots 30 of the spindle. In order to hold the spindle in this position, apeitured locking plates 31 are applied to the spindle on opposite sides of the cam and are moved into the cavities 28 against the hubs of the cam sections. The cavities 28 are shown as elongated, and the locking plates 31 are preferably formed to fit within the bottoms of the cavities. Vith the parts so assembled, deposits 32 of solder or the like 9) are poured into the cavities about the plates 31 and serve to secure the parts permanently in place.

As shown clearly in Figs. 1 and 2, the -peripheral flanges of the cam sections 2 3 and 24 operate Within the circumferential groove 14 of the valve stem 12, and as a consequence of this, when the spindle 20 is rotated by means of the operating handle 21, the stem 12 will be reciprocated byreason of the eccentricity of the yflanges 25 and thus move the valve member 13 toward and from the seat 6. To avoid binding of the flanges within the groove 14 as the flanges move obliquely through the groove, the opposed walls of said groove are chamfered or roiinded, as shown.

It will be noted that at the-highest point of the cam the flanges 25 are interrupted to produce a gate, designated 33. It is through this gate that the lower end of the valve stem 12 is entered when engaging the flanges 25 Within the groove 14; but when the parts are assembled and the bracket Y15 secured by the screws 16 to the lugs 17, the stem 12 -is restrained from being lifted high enough-V because of the engagement -of the valve member 13 with the seat G-to permit sufficient rotation of the cam to bring the gate 33 adjacent the valve stein. Therefore, so long as the parts are assembled, there is no Vdanger of the cam being disengaged from the .valve stem, but as soon as the bracket 15 is disconnected from thecasing and permitted to drop, the disconnection between the' cam and spindle may be readily made by simply turningthe -spindle in a clockwise direction until the flanges 25 ride out of the groove 14, whereupon the valve stem may be lifted fiom the guide 10. The rotation of the earn in acounter-clockwise direction beyond a certain point is prevented by the engagement of straight portions 34 of they flanges 25 within the groove 14.

The parts are designedl to provide clearance ample to prevent liability of the parts sticking, and also to avoid such extreme acF curacy as would make production and assembly expensive and tedious.A On account of this it is desirable to :provide means for creating friction between certain of the operthe guide 10. Furthermore, this produces a y rolling action between the cam flange and spindle which makes the operation ofthe mechanism easier and avoids wear of the parts. I

It is 'evident from the foregoingdescription that the two -screws 16 are responsible for holding the various elements assembled.

Upon removal of these screws, the bracket may be dropped, the cam turned far-enough to disengage it from the stem 12, the stein withdrawn from the guide 10, the guide with its suppoiting disk 9 reinovedfroin the counterboi'c of the opening 7, and the spinn dle shifted forwardly and disconnected from the branch 19 of the bracket so that the spring may be removed from the spindle. r

Having thus described my invention, what I claim is:

1. In a device of the character set forth, the combinationof a reciprocable element having a groove, a valve member havingV connection with said element,- a rotatable member having a cani flange engaged within said groove, and=means tending to maintain the last mentioned member and said element in frictional engagement.

2. In a device of the character set forth,v

the combination of a reciprocable valve member, a rotatable spindle, a cam carried by said spindle, operative connections between the cam and the valve'member, and,r

resilient. friction means tending to maintain the valve member against movement in any.

position to lwhich it is adjusted.

3. In a device of the character set forth,

the combination of ja recipi'ocable valve member, a rotatable spindle, a cam carried by saidspmdle, operative connections betweenthe cam and the valve member.v` and` means creating friction in Ysaid operative connections thereby to maintainvthe valvey member lagainst' movement iii any position to which it is adjusted. Y

4. In a device of the charactersetforth, the combination of a reciprocableelement, a valve member havingl connection therewith, a spindle supported transversely of the axis of recipiiocation of said element, a

cam on `said spindle bearing laterallyl against said element, the cam andjeleinent having interfitting parts effecting a driving connection between the cam 'andfelemenh 5. In a device of the character set forth,`

the combination of a reciprocable element, a valve member having connection therewith, a spindle supported transversely of -the axis of rec'iprocation of said element, a cam on said spindle bearing laterally against said element, the cam and element having inter-l fitting parts effecting a driving connection between the cam and element, means urging the cam into frictional engagement with said element, and means Vfor rotating the spindle.

6. In a device of the character set forth, th-e combination of a reciprocable element having a groove, a valve member having connection with said element, a spindle supported transversely of the axis of reciprocation of the element, a member on said spindle having-a cam flange engaged within the groove of said element, means for rotating the spindle, and means tending to move the last mentioned member in a direct-ion to frictionally engage it wit-h the element.

7. In a device of the character set forth,

l the combination of a reciprocable element, a

valve member having connection therewith,

a spindle supported transversely of the axis of reciproeation of said element, a cam on said spindle comprisingv separate complementary opposed sections between which a part of the aforesaid element reposes, each sect-ion incorporating a flange, the element having a groove within. which said flanges are engaged, and means for rotating the spindle. p y

8. In a device of the character set forth, the combination of a reciprocable element, a valve member having connection therewith, a spindle supported transversely of the axis of reciprocation of said element, a cam on.

said spindle comprising opposed sections between which a part of the aforesaid element reposes, each section incorporating a flange,

`the element having a groove within which said flanges are engaged, means urging the cam into frictional engagement with said element, and means for rotating the spindle.

,9. In a device of the character set forth, the combination of a reciprocable stemra valve member having connection therewith,

a spindle supported transversely of the axis of reciprocation of said stem, a cam on said spindle comprising separate complementary opposed 'sections having inwardly directed peripheral flanges, the spindle having a groove in which said flanges engage, land means for rotating the spindle.

10. In a device of thecharacter-set forth, the combination of a reciprocable stem, a valve member having connection therewith, a spindle supported transversely of the axis of recip'rocation of said stem, a cam yon said vspindle comprising opposed sectionsv having inwardly directed peripheral flanges, the spindle having a groove in whichV .said flanges engage, andk means tending to urge the cam into frictional engagement with the stem.

11. In a device of the character set forth, the combinationof a guide, a stem reciprocable therein Aand having a circumferential groovebeyond one end of the guide, a valve y member having connection with the stem beyond the opposite end of the guide, a spindle supported transversely of the yaxis of yreciprocation of said stem, a cam on said spindle comprising separate complementary opposed sections between which the'grooved end of the stem reposes, each section incorporatingl a flange that is engaged within the groove of the stem, and means for rotating the spindle.

12. In a device of the character set forth, the con'ibination of a guide, a stem reciprocable therein and having a circumferential groove beyond one endof the guide, a valve member having connection with the stem beyond the opposite end. of the guide, a spindle supported transversely of the 'axisv of rcciprocation of said stem, a cam on said pindle comprising opposed sectionsA between which the grooved endy of the stem reposes, each section incorporating a flange that is engaged within the groove ofthe stem, means for rotating thek spindle, and means urging the cam into frictional engagement' withthe stem. 1 i

13. In a device of the character set forth, the combination of -a bracket, aguide asociated with said bracket, a stem reciprocable within said guide, a valve member having connection with saidstem, a spindle rotatably supported' by the bracket transversely of the axis of reciprocation of the stem,fa cam securedA to said spindle and comprising separate complementary opposed sections having'inwardly directed flanges` the stem having a groove for the reception of said flanges, and moans for rotating the spindle.

14. In a -device of the character set forth, the combination of a bracket, a guide asso cia-ted with saidbracket, a stem reciproca-ble within said guide, a valve member having connection with said Stem, a spindle rotatably supportedr by the bracket transf versely of the axis of reciprocation .of the stem, a cam secured to said spindle and comprising opposed sections having inwardly directed flanges, the stem having a groove for the recept-ion of said flanges, a spring surrounding the spindle and compressed between the cam and an opposed part of the bracket, and'means for rotating the spindle.

the combination oil? a ca-sing having an opening, a member fitted Within said opening and incorporating a. tubular guide, a stem reciprocable Within said guide, a valve member v.carried by the inner end ot the stem, the stem having a circumferential groove adjacent its outer end, a bracket incorpo-rating a base and spaced apart branches, the base being secured to the casing across the aforesaid opening thereof and having an aperture through which the valve stem projects, a spindle rotatably supported by the branches of the bracket, a member' on said spindle having a. cam l'iange engaged Within the groove of the aforesaid stem, a. spring surrounding the spindle and compressed between the cani andthe opposed branch ot the bracket for urging the cam in a direction to ifrictionally engage it With the stem, and means 'for rotating the spindle.

16. A valve adapted to be opened and closed by a reciprocating movement, la grooved stem secured to said valve, a rotatable cam operating within said groove for reciprocating the valve, and friction preducing mea-ns acting to 'maintain the valve against movement in any adjusted position.

17. In mechanism ot the character set forth, the combination oi a spindle, a cani having a slot Whose opposite ends are of different Widths and through the enlarged end of which said spindle is adapted to be projected, the spindle being reduced transversely in one direction at a point permitting it to be projected laterally into the restricted end o said slot, and means retaining the spindle within said restricted end.

18. In mechanism ot the character set forth, the combination of a spindle, a cam having a keyhole slot through the enlarged end of which said spindle is adapted to "be projected, the spindle having notches in its opposite sides permitting it to be projected laterally into the restrictcdend of said key-v hole slot, and means retaining the spindle Within said restricted end. V

19. .In mechanism of the character set forth, the combination of a spindle, a cam having a keyhole slot thro-ugh the enlarged end of which said spindle is adapted to be projected, the spindle having` notches in its opposite sides permitting it to be projected laterally int-o the restricted endol' said keyhole slot, and a locking plate ln ving an apertnre through Which the spindle is adapted to be projected, said locking plate and cam having cooperating parts tor maintaining the spindle Within the restricted end oi' the slot.

20. In mechanism of the character set orth, the combination of a spindle, a cam comprising opposed sections having hub portions that are adapted to be engaged with each other, said hub portions having registering keyhole slots, the spindle being adapted to be projected through the larger ends of said slots and having notches in its opposite sides Which permit the spindle to be shifted laterally into the restricted ends of the slots, said cam sections having depressions surrounding their slots, locking plates having apertures accommodating the spindle and which it Within the depressions of the cam sections when the spindle occupies the restricted ends of the slots, and means lor securing the locking plates in position.

In testimony '\vhereoi", I hereunto aiiix my signature.

MARC RESEK.