US2196107A - Sheet metal nozzle valve - Google Patents

Description

' April 2, 1940.

c. DOM 2,196,107

SHEET METAL NOZZLE VALVE Filed Nov. 5. 1937 INVENTOR. C/IeJ/ey Dom ATTORNEY.

Patented Apr. 2, 1940 UNiTE D STATES PATENT OFFICE to The Wm. Powell Company, Ohio, a corporation of Ohio Cincinnati,

Application November '5, 1937, Serial No. 172,893

4 Claims.

It has been common practice to produce valve housings,- nozzle valves and the like, for example,

as shownin such patents as Eickman 1,585,332,-

Ericson 958,735 and Bike 1,808,074, by casting the 5 housings out of brass or similar material. It has never been deemed advisable or possible to make, from any sheet material, valve housings adaptable to functions or service such as the referred to patents are intended. I

An object of the invention is to produce housings, essentially of sheet metal, and which are adaptable to uses similar to those to which the structures disclosed in the indicated patents are put.

Another object of the invention is to provide a simple and efiicient method for producing or fabricating such devices from sheet metal.

Another object of the invention is to provide valves and valve housings of the character under consideration, in which full advantage may be taken of the inherent advantages of certain sheet metals in contrast with the metals ordinarily used in the molding arts, including die casting, and which latter two practices are concerned essentially with relatively soft metals.

Another object of the invention is to supplement, by structural means, the benefits and advantages inherently obtainable from certain sheet metals when applied or adapted to the indicated purposes or objectives. v

Another object of the invention is to expedite the fabrication of devices of the character under consideration.

Another object of the invention is to provide more substantial devices, many of which may be reduced in weight, by reason of the within invention.

ward and heavy structural forms that are many times required in order to produce satisfactory castings intended for uses of the general character exemplified in the referred to patents.

These and other objects are attained by the means described herein and disclosed in the accompanying drawing, in which:

Fig. 1 is a top view of a nozzle valve of the Another object is to obviate the clumsy, awk- Fig. 5 is a detail view of a link forming a detail of the invention.

Fig. 6 is a sectional view of an annular formation typical of various detailed parts of the device shown in, Fig. 2. I

Fig. 7 is an end view of the device shown in Fig. 1, on reduced scale, part being broken away to show internal construction ofparts thereof.

The device of the invention comprises two com- .plementary half members H and I2 formed of 10 sheet metal, the nature or character of the use to which the finished device is to be put, determining the character and composition of the sheet metal used. For example, a device intended for use with gasoline or other corrosive or volatile 15 fluids are advantageously made of stainless steel comprising a-relatively high chromium content. The complementary shells or half members H and I2 are provided, except at those places where orifices or ports are to be formed, with laterally 20 or outwardly extending flanges indicated at i3,

i4, l5, l6, I1, and I8. The flanges shown at'll and I8, inthe particular form shown herein, were continuous; however, incident to the mounting of the parts shown in Fig. 2 and separating the 25 flanges ll and I8, such flange members are apparently separate and distinct. When two half members Hand l2 are associated in astructure wherein a valve seat or similar member is to be employed, such valve seat member may be 30 mounted therein in various appropriate manners."

As disclosed herein, the valve seat member G9 has its peripheral or annular outer edge in sealed contact upon the inner faces of the members II and 12. In order to position the seat member 35 I 9, the members I i and ii are provided with outwardly extended rib-like members 2i! and 2| whereby to provide ledges or recesses upon the inner faces 22 of the shell members and into which ledges or recesses the outer edges of the seat member are disposed incident to the assembly of the device. The ribs providing the recesses may fall short of reaching the flanges I8 and I5, as a comparison of Figs.- 2 and '7 will 45 indicate, so that any danger of distorting the flanges and ribs may be avoided. In other words, the valve seat member l9 need not be supported along its entire periphery in order to avoid its dis placement during and after assembly. It is readily obvious that the ribs such as 20 and 2! may be struck inwardly, thus forming internal ledges upon which a seat member such as Is may be positioned incident to assembly. Incident to the formation of suchribs, certainadditional rigidity and strength is developed in the wall members II and I2.

As shown herein, the valve seat member I9 comprises an annular disc-like member, the center of which is formed into a substantially U- shaped cross section. By reason thereof, there is provided an annular valve seat 23.

Incident to assembly of a device such as shown herein, there is provided and mounted within the device, a housing 24 which provides bearings and packing receiving and holding means for the valve stem 25. As shown herein, the member 24 comprises an annular thimble or cup-like member fabricated in any suitable manner. The member 24 is provided near its larger end with an outwardly protruding annular rib 26 adapted to lie upon the inner iaces of the members II and I2, adjacent an annular opening provided at 27 between and at the junction of the members I I and I2 and intermediate the rib-like flanges IT and I8. The inner end of the member 24 may be threaded for adjustably receiving a suitable packing nut 28 having a threaded flange 29 thereof in contact upon or With the internal threads of the member 24. The packing nut 28 is adapted to secure the packing material 38 in the reduced inner end of the member 24 and about the valve stem 25. It is to be understood that the inner end of the casing or housing 24 is provided with an opening through which the valve stem 25 may be reclprocated. At the outer end of the member 24 a suitable bearing and adjustment nut 3I is provided and through which the valve stem 25 reciprocabiy extends. The member 3I is preferably provioed with a knurled flange 32 and a tm'eaded body indicated generally at 33. The threaded body has engagement with the threads formed upon the interior of the member 24. It is to be understood that the packing nut 28 is provided with a suitable aperture through which the valve stem 25 reciprocably extends. The annular rib 26 formed upon the member 24 has sealed connection with the inner wall of the device and such connection will be explained in detail hereafter.

At each of the Various orifices that are to be otherwise provided in the device comprising the two complementary half sections II and I2, there is mounted a sealing and coupling ring. Each of the rings are generally or the same general construction and are fabricated in the same general way. Such rings are shown at I34, I35, and I36. The explanation or description now about to be given for the method of fabrication and attachment of the ring I34, is applicable to the rings I35 and I36, it being understood that suitable detail changes are to be made to adapt each of the rings to its specific environment.

The ring 34 is formed from an initially fiat annular disc. In connection therewith, attention is directed to Fig. 6. The central portion of the disc is pierced and turned inwardly whereby to provide a central annular tube-like portion or flange 35 that may be internally threaded as indicated at 38. The peripheral portion of such disc, indicated by dotted lines at 31, is turned or formed into an outer substantially tubular form or flange shown at 38 and which is substantially concentric with the portion 35 thereof. The portion 39 of the disc, intermediate the two turned portions 35 and 38, remains in substantially its original condition. The portions 35 and 36 are spaced as shown, whereby to provide an annular receive the ends 4| of the members II and I2, ad-

jacent the openings or ports to be provided in the finished device, thus serving to position and hold the members II and I2 in contact upon one another and with the flanges I3 to I8 inclusive, in contact upon one another as previously explained. The rib members such as I3 to I8 may be omitted adjacent the ends such as 4| and which ends are to be inserted in pockets such as 48. In asssembling the half housing II 'and I2 into a complete device, a ring of solder 42 is first introduced into the bottom of the pocket 40, the purpose of which will be more fully explained hereafter.

The combined guard and handle member 43 may be made of any suitable form and may be attached in any suitable manner. As shown herein, the member 43 is formed of sheet metal of the same character used for producing the parts II and I2. The member 43 is preferably formed as an integral stamping provided at its ends with suitable diverging fingers or flange members such as 44. The fingers 44 are in pairs and are adapted to be brought into contact with the outer faces of the rings such as I34 and I36 or members I I and I2 and to be brazed or otherwise attached to such parts. The particular type or kind of handles employed with the remainder of the device is not of consequence, however, it is to be understood that in order to obtain the factors of strength and lightness sought, it is prelerable that a handle and guard member be employed of the character disclosed herein. The finger-like members 44 may be developed from the arm or flange-like members 45 that result from making the member 43 of substantially U- shaped cross section. A suitable actuating lever 46, which may or may not be made of similar sheet metal is provided for operating the valve stem 25. The lever 46 may be attached to the device in any suitable manner. As shown herein, the lever 46 comprises two parts, a hand hold portion 4'! and a link 48. The member 41 is hingedly connected at 49 to one end of the link 48 and the other end of the link 48 is hinged at 50 to or between the arm-like members 45 of the member 43. As shown herein, the member 41 is made of sheet metal and is accordingly developed into a substantially U-shaped cross section for obtaining lightness and strength. The end thereof that is hingedly connected to the link, has its central web or base 5| developed into a generally semi-circular form for finishing the end thereof and for giving strength about the openings formed in the opposite side walls 52 of the member 41 for receiving the hinge pin 49. The arms 52, adjacent the curled end 5|, are developed into outwardly extending flanges 53 and 54 that are adapted to contact upon the abutment faces 55 formed upon the arms 56 and 51 of the link 48. It is to be understood that the link 48 is likewise of general U-shaped cross section. The general method of cooperation of the lever members 47 and 48 is intended to conform with the disclosure in patents showing generally the same relationship of parts in similar devices.

The particular form of arrangement for mounting a valve upon the valve stem 25 may conform with any of the practices common in devices of the character under consideration. As shown herein, the valve stem 25 has secured thereon a suitable valve head which may include a washer carrying member 58. The member 58 is in the nature of an inverted cup and receives and holds suitable renewable washer or valve face forming means 59 A spring centering cup 68 is mounted upon the member 58. The members 58 and 68 may be brazed upon the end of the valve stem 25,

should that method of attachment be desired. It is tobe understood that the members 58 and 60 may be made of the same character or type of sheet metal used for forming the members II and I2. i

- The valve stem 25 is threaded as shown at 6I. A valve guiding member 62, provided with a central aperture, receives the threaded portion of the valve stem and is held against the under face of the washer member 59 by a suitable nut 63 having threaded connection with the valve stem 25. The member 62 is annular and cup-shaped. The free peripheral edge of the member 62 is preferably contracted whereby a generally contracted or conical formation is given tothe side wallsof the member 52 whereby to effect cooperation of the cup 62 with the inner. Wall member 63 of the seat member I9 for guiding the valve to contacting portion 23 of the seat member I 9.

A suitable spring 65 is introduced between the member 60 and the nut 55, in accordance with customary practice in nozzle valves of the character disclosed herein. The nut 65 may be fabricated of sheet metal and may be given suitable configuration in order to provide a suitable seat in annular pocket i3! for receiving one end. of the coil spring 55 and for providing an outwardly extending flange 68 for cooperating with the ring I for providing an effective and efficient seal incident to the detachable mounting of the nut upon the ring I35. It is to be understood that the nut may be made hexagonal or of some other form if desired, for facilitating attachment and detachment thereof.

In assembling the device of the character disclosed herein, a valve seat member I9 and a member such as 24 are positioned between a pair of shell members such as II and I2. Suitable flux material is applied at those places at which welding or soldering of the various parts upon one another, is desired. An annular ring of suitable solder material is inserted into each of the pockets such as of rings I34, I35, and I36, and such rings are mounted upon the members II and I2 for holding the parts in assembled condition. If desired, a similar ring of solder may be applied about the member 24 at the place where the annular rib 26 rests upon the members II and I2. Incidentally, it is to be noted that the members II and I2 are generally flat about the area at which the member 24 is to be mounted. Otherwise expressed, the assembled device might be said to comprise a central fiat bottomed cuplike portion 69 from which extend laterally, the inlet conduit I0 and the outlet conduit II.

Brazing or soldering material is then placed upon the inside of the assembled device and at an end of the crevice formed incident to contact of the flanges or ribs I3 and I4, etc., upon one another. The combined handle and guard member 43 is properly positioned in relation to the rest of the device and suitable brazing or soldering material is applied. The entire device is then set on one of its ends in a suitable furnace. By

' reason of the capillary action of the brazing or soldering material along the crevices, an efi'ective nace, the individual devices are completed by assembling the valve, valve stem, spring, cap 66, packing, packing nut,- actuating lever, etc.

At the discharge end of the device shown in Fig. 2, there is shown the customary nozzle extension 80. The particular construction of the member 80 is of no particular consequence here and such device may be attached to the end 36 in accordance with customary practice. It is to be observed, however, that the coupling member 8| forming part of the device may be of sheet metal and may have associated therewith a valve and valve seat and various other parts that may be fabricated in accordance with the method previously explained in connection with the creation and production of similar parts in the nozzle valve.

The showing of solder 90 at places where same is applied, as explained herein, exaggerates for purpose of illustration, the formation of the seal along the crevices in the device as originally assembled. The flanges I3 to I8 inclusive, are preferably made small enough and the edges thereof formed smooth, for providing a very comfortable seat for the operators hand while grasping the uct or article, it is. preferable to provide the ribs or flanges such as I3 to I8 inclusive, it is to be understood that the complementary members such as II and IZmay have their adjacent edges in such contact as will provide what may be termed a butt joint. The rings, such as I34, serve to hold the complementary members securely and the brazing assures a perfect seal along such butt joints.

What is claimed is:

1. A sheet metal valve casing comprising preformed complementary single-thickness sections each provided with longitudinal edges adapted to contact similar complementary edges on the other complementary sections, for together providing a hollow casing having openings at its opposite ends formed by a single thickness of the metal, means for receiving and holding the sections adjacent said openings, the said complementary sections intermediate their ends having valve member supporting ledges formed as pressed semi-circular recesses having ends falling short of reaching the contacting complementary longitudinal edges of the sections aforesaid, a valve member received by said recesses of the sections and having a valve seat formed thereon, means for sealing the joints along said contacting edges, at said receiving and holding means and between the valve member and the ledges provided by said foreshortened recesses, and a valve head or cooperation with said valve seat.

2. A sheet metal valve controlled nozzle comprising a sheet metal housing comprising complementary preformed sheet metal sections, having valve member supporting ledges formed thereon in the form of semi-circular recesses located remotely from the ends of the sections, said sections having complementary longitudinal contacting edges, and said recesses falling short of intersection with said edges, means for securing said edges in sealed contact upon one another, a stationary valve member disposed transversely of the housing and having sealed contact within said recesses, a valve seat formed on said valve member, a valve head or cooperation with said valve seat, valve operating means comprising a hollow sheet metal sleeve secured to said housing and having openings at its opposite ends, said sleeve having sealed attachment at one of its ends to said housing, the housing having an opening in communication with the interior of the sleeve, a valve stem connected to the valve head and extending through the sleeve and the housing and having bearing support on said sleeve and means on the exterior of the housing for actuating the valve stem.

3. In a valve-controlled filling nozzle, the combination of a pair of complementary sheet metal shell members each comprising an inlet section, and a discharge section offset therefrom, said sections extending in opposite directions, and an integral intermediate cup-like portion joining said sections in the offset relationship, the inlet section, the discharge section, and the intermediate joining portion of the shell members each being half-cylindrical and having joint forming edge flanges all disposed in a common plane, said flange edges of the shell members being complementary and joined together to form a unitary hollow structure, a free open end on each of the said sections and reenforcing means bounding said ends, a valve seat member in the form of an apertured oversize disc adapted for disposition within the intermediate cuplike portion transversely thereof and in substantial parallelism with the major axes of the inlet and discharge sections, and means for supporting said valve seat member, said means comprising a semi-circular outward depression formed in each of the intermediate cup-like portion halves, said depressions each having opposite ends falling short of intersection with the flange edges of the intermediate joining portion of each shell member, and lying in a plane parallel to the axis of the inlet section thereof, said valve seat member being soldered within the foreshortened depressions aforesaid.

4. In a valve-controlled filling nozzle, the com bination of a pair of complementary sheet metal shell members each comprising an inlet section, and a discharge section ofiset therefrom, said sections extending in opposite directions, and an integral intermediate cup-like portion joining said sections in the offset relationship, the inlet section, the discharge section, and the intermediate joining portion of the shell members each being half-cylindrical and having joint forming edge flanges all disposed in a common plane, said flange edges of the shell members being complementary and joined together to form a unitary hollow structure, a free open end on each of the said sections and reenforcing means bounding said ends, a valve seat member in the form of an apertured oversize disc adapted for disposition within the intermediate cuplike portion transversely thereof and in substantial parallelism with the major axes of the inlet and. discharge sections, and means for supporting said valve seat member, said means comprising a semi-circular outward depression formed in each of the intermediate cup-like portion halves, said depressions each having opposite ends falling short of intersection with the flange edges of the intermediate joining portion of each shell member, and lying in a plane parallel to the axis of the inlet section thereof, said valve seat member being soldered within the foreshortened depressions aforesaid, and a hollow valve actuator guard spanning the intermediate cup-like portions of the shell members and having opposite ends fixed to the inlet section and the dis charge section, at least one of said ends being bifurcated to furnish opposed arms embracing the opposed shell members.

CHESLEY DOM.

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