US1943708A - Method of making manually - Google Patents

Description

Jan. 16, 1934. J. F. WERDER 1,943,708

METHOD OF MAKING MANUALLY OPERATED VALVES 7 Original Filed July 22, 1926 2 Sheets-Sheet l 16 "Willllllljllllllllll l l I HIIIIIIIIIIIIIII J0' i 27 l; I 2

I i 7 2 26 28 I 104 20 gwwwto'c Jan. 16, 1934. F, E R 1,943,708

METHOD OF MAKING MANUALLY OPERATED VALVES Original Filed July 22, 1926 2 Sheets-Sheet 2 K 6'. i- 3 a x a $4 amnion 27 3 36 k 26 9017/7/77; 6 6 m @a/ugwaw Patented Jan. 16, 1934 STATES PATENT OFFICE METHOD OF MAKING MANUALL OPERATED VALVES John F. Werder, Cleveland, Ohio, assignor of one-half to Edmund Rogers 5 Claims.

This invention relates to valves, and more particularly to the method of manufacturing a manually operated valve or channel for the evacuation of oils or other liquids from a closed pressure container.

Specifically, the present invention is concerned with the commercial production of the valve or outlet channel forming a part of the improved self dispensing liquid package covered by my prior Patent No. 1,762,903, issued June 10, 1930, and may be considered as a division of my copending application Serial No. 124,150, filed. July 22, 1926, issued as Patent No. 1,833,983 on Dec. 1, 1931 covering certain structural features of the valve itself.

As an example of the purpose and value of my invention, I cite the present oil can structure prevalently employed. For application of the lubricant, a spout top functions as the channel through which the lubricant passes from the can to the point or reservoir of application. Several disadvantages of such a method are evident. Unless precautions are taken, the oil will leak when the can is not in use. It must necessarily be carried to the particular point of need and the oil will not go any appreciable distance beyond the top of the spout except in a straight downward direction. The can must be tilted downward to permit the flow. To eliminate such defects, various devices have been adopted such as a screw cap at the tip of the spout, elongated spouts and manually operated pumps to force out the liquid. By utilizing my present invention, together with a closed container holding the contents under greater than atmosphere pressure, the gas or liquid is discharged in a stream, which is accurately directed and controlled. In addition thereto the contents and resultant pressure are retained indefinitely without any leakage or loss whatsoever.

By reference to my said patent and application, it will be seen that the valve in question is provided with a lateral nozzle through which the contents of the can is discharged, and as ex- 0 plained in said patent, the entire package mentioned, including the valve, should preferably be so cheaply constructed that it may be sold as a unit and discarded when empty.

The present invention therefore has as its object a method for the manufacture of these valves on a commercial scale, which method will not only produce a valve which is capable of holding gas or liquid pressure indefinitely, without leakage, but which also will produce such a valve so cheaply as to make possible its use as a part of the discardable package described in said prior patent.

With the achievement of this result in View, I have devised a valve of the character in question so designed that it becomes a unit wherein all 63 parts can be manufactured from bar stock of semi-soft metal such as brass on an automatic lathe or screw machine, without the necessity for the employment of any castings whatsoever and with such liberal tolerances as to reduce the cost of production to a remarkably low figure.

In order that the invention may be readily understood, reference is had to the accompanymg drawings, forming part of this specification and in which: a 7

Fig. 1 is a longitudinal central section throug one form of valve made in accordance with the invention;

Fig. 2 is a similar View showing a slightly modilied construction;

Fig. 3 is a perspective view of the packing gasket shown in Figs. 1 and 2;

Fig. 4 is a fragmentary side elevation of a piece of bar stock from which the valve body is manufactured;

Figs. 4 4 4, 4 and 4 are longitudinal sectional views showing successive steps in the manufacture of the valve body from such stock;

Fig. 5 is a fragmentary side elevation of a piece of bar stock from which the manually operated 5 valve member is formed;

Figs. 5 5 5 and 5 are similar views showing successive steps in the manufacture of the valve member from such stock;

Fig. 6 is a fragmentary side elevation of a piece of bar stock from which the discharge nozzle, forming part of the valve assembly is formed; and

Figs. 6 6 and 6 are longitudinal sectional views showing successive steps in the manufacture of the nozzle from such stock.

Referring to the drawings in detail, and first more particularly to Figs. 1, 4, and 4 and 4 inclusive, the Valve body 10, as herein shown, has square or flat ends 10*, and is formed entirely by machine operations from bar stock.

A piece of this stock is shown at A in Fig. 4. The first operation consists in boring out an axially extending chamber 11, as shown in Fig. 4 j and extending this with a bore of smaller diameter, as indicated at 18, preferably terminating in a straight line parallel to the axis of the bar, these bores being carried to a certain definite depth.

The next operation, as shown in Fig. 4 consists in forming internal threads 14 in the outer end of the chamber 11.

Then, as shown in Fig. 4, a lateral opening 26 is bored from the side wall of the blank to the bore or chamber 18.

Then, as illustrated in Fig. 1 the bored and chambered section of bar is cut off as at m.

The final steps in the production of the valve body, as shown in Fig. 4 comprise boring out a socket 29 in the flat face 10 of the blank and connecting this socket with the chamber 18 by a bore or passage 19 of smaller diameter, whereby an armular shoulder 23 is formed at the bottom of the chamber 18 constituting a valve seat.

Thus, it will be seen that the completed valve body, as illustrated in Fig. 4 is produced entirely by boring, drilling and threading a section of bar stock.

Cooperating with the valve body above described is a manually operated valve member. This is also formed by machining operations from a piece of bar stock such as shown at B in Fig. 5.

The first operation consists in cutting away the end portion of the bar stock to form parts 13 and 15 of reduced diameter, as shown in Fig. 5 The end of the smaller portion or shank 13 is also tapered or bevelled, as shown at 17.

The next operation consists in threading the portion 15" as shown at 15 in Fig. 5', these threads being of the same pitch and size as the threads 14 in the valve body.

After this has been done, the uncut portion of the bar stock adjacent the part 15 of the valve member is preferably knurled or otherwise roughened, as shown at 16 in Fig. 5 unless there be used other than round stock or sufiiciently large round stock to permit leverage.

' The final operation consists in cutting oil the reduced and threaded assembly from the bar stock so as to form a relatively thin flat head 16, the completed valve member being shown in Fig. 5

As shown in Fig. 1, this valve member is fitted into the outer end of the valve body 10, a packing gasket 12 being interposed between the threaded v portion 15 and the bottom of the chamber 11, such gasket having a central opening 12 through which the shank 13 freely passes.

The parts are of such relative length and pro portion that the shank 13 extends down through the chamber 18, and the tapered or cone-shaped end 17 thereof enters the port or bore 19 and, when the valve member is screwed down, engages the shoulder 23 and serves to close the port 19 with a tight fit which is capable of holding fluid pressure for an indefinite period.

As described in my prior patent and co-pending application above identified, my improved valve body is intended to be secured to the upper wall or top of a container, such as a sheet metal can, a siphon tube or pipe 20 having been first set into the socket 29 and arranged to extend down into the can or container.

Also as described in my prior patent, the preferred method of attaching the valve assembly and tube to the container consists in punching a hole downwardly in the top of the container of a size to receive the pipe 20, the punching being done in such a manner that the edges of the metal are curled downwardly as shown at 22. The assembled pipe and valve are then placed on the can in the position shown in Fig. 1. and permanently secured thereto as by means of solder 24.

It will be further observed that the above described method of producing a valve enables me to employ packing for the valve stem without the necessity for the usual packing nut or gland. In other words, the threaded portion of the valve member itself constitutes the means for compressing the packing gasket.

In order to discharge the contents of the can in the form of a jet or spray, I provide a discharge nozzleinade asfollows. I first take apiece of preferably round bar stock, as shown at C in Fig. 6, and very slightly taper or charnfer the end thereof, as indicated at y. I then make an axial bore 3 in the same, the drill employed preferably having a conical point, so that the bore 33 is provided with a tapering or conical bottom 34, as shown in 6 to facilitate the centering of the drill boring the outlet 28.

I next out on the bored section from the bar stock at a point just beyond the bottom 34 of the bore, and then bevel or chainfer the cut off end so as to form a more or less tapering or conical point, as shown at 2'? Fig. 6

Finally, I drill an opening 28 from the point of the nozzle to the bottom 34 of the bore 33, as illustrated in Fig. 6

The completed nozzle is then forced into the opening or socket 25 with a pressed fit, the slight taper 1 making this possible. I find that when this is done, the nozzle is securely held by friction only, and no screw threads or solder are required.

It will thus be seen that even in the manufacture of the nozzle, enabled to secure the desired results solely by machine from bar stock, thus avoiding the necessity for casting or otherwise forming the parts.

The purpose of the tapered or conical nose or point 27 is to enable the nozzle to effectively contact with an opening in a supply manifold by means of which the can is filled with the liquid to be packaged. By using the tapered end 27 and applying it to a square shouldered opening in the s pply manifold, I secure the same tight sealing efifect as is obtained by the parts 1'7 and 23 of the valve.

In Fig. 2, I have shown a slightly difierent construction of valve body and valve member, but the corresponding parts have been indicated by the same numerals as in Fig. 1, except that these numerals are primed.

Thus, in Fig. 2, I employ a packing ring 12 which is compressed between the end of the valve body 10 and a packing nut 31 which engages external threads on the end of the body. The valve member itself is provided with threads 15 engaging internal threads i l in the valve body, but has a relatively long shank 30 between such threads and a head 16', which shank passes through the packing ring and nut 31. Furthermore, the extreme end of the valve body is relieved or reamed out, as shown at 32, in order to permit the smooth shank 30 to extend well through the packing ring- Otherwise the construction and method of manufacture of the valve are the same as described in connection with Fig. 1. All parts, including the nut 31, are produced from bar stock by the simple operation of boring, drilling and threading, no cast parts whatsoever being used, the various parts then being assembled economically and expeditiously into a unit.

From the foregoing, it will be seen that by my improved method of manufacturing all parts of a complete valve by simple machining operations of bar stock, in such a way as to permit practicable and simple assembly, I am enabled to eliminate all expensive operations, such as casting or die forming, and can produce valves of the char acter described at such a small cost that the can use or container to which they are attached may be used once and discarded, without causing any prohibitive loss.

What I claim is:

1. The method of making a discharge nozzle and assembling the same with a valve body which comprises forming the valve bodv with a lateral opening slightly tapering the end of a piece of bar stock of such size as to fit said opening, boring an axial chamber into said stock from the tapered end thereof, cutting ofi the chambered portion from the bar at a point just beyond the bottom of the chamber, drilling an axial passage of relatively small diameter from said out off end to said chamber, and finally forcing the tapered end of the nozzle thus formed into the lateral opening of the valve body with a pressed lit.

2. The method of making a manually operable valve member or the like having a knurled head, which comprises cutting down the end of a piece of bar stock of a diameter equal to that of the head, to form a shank portion of reduced diameter, threading such shank portion, knurling the end portion of the bar stock adjacent said shank and then cutting oil the bar in a plane at right angles thereto, whereby a flat knurled disk having a shank integral therewith is produced.

3. The method of making a valve body which comprises boring an axial chamber of definite length in the end of a piece of bar stock, forming threads on the interior of said chamber, boring a lateral passage from the side of said bar to said chamber at a point adjacent the end of said chamber, cutting off the chambered portion from the bar at a point beyond the bottom of said chamber, to form a valve body blank, and drilling axially from the cut-off face of such portion to said chamber with a bore smaller than said chamber, whereby an annular shoulder is formed at the bottom of said chamber to constitute a valve seat.

4. The method of making a valve body adapted to control the discharge of fluid under pressure, which comprises boring an axial chamber of definite length in the end of a piece of bar stock, forming threads on the interior of said chamber, boring a lateral opening from the side of said bar to said chamber at a point adjacent the end of said chamber, cutting off the chambered por tion from the bar to form a valve body blank, drilling axially from the cut oil face of said blank to said chamber with a bore smaller than said chamber, whereby an annular shoulder is formed at the bottom of said chamber to constitute a valve seat, and enlarging the outer end of such smaller bore to provide a pipe receiving socket in the end of said body blank.

5. The method of making a manually operated valve which comprises boring an axial chamber of definite length in the end of a piece of bar stock, forming threads on the interior of said chamber, boring a lateral passage from the side of said valve body to said chamber at a point adjacent the end of said chamber, cutting off the chambered portion from the bar at a point beyond the bottom of said chamber to form a valve body blank, drilling axially from the cut-off face of such portion to said chamber with a bore smaller than said chamber, whereby an annular shoulder is formed at the bottom of said chamber to constitute a valve seat, securing within said lateral passage a discharge nozzle, and fitting within the valve body so produced a threaded member engaging the threads of said chamber and having a shank shaped at its end to constitute a valve co-operating with said seat.

JOHN F. WERDER.

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