US 2501639 A
Description (OCR text may contain errors)
Mmdm 2 E950 D. c. WARREN ZERO-MOMENT SWIVEL NOZZLE Filed May ll, 1948 H mm NH m N A m ww n c. ,A
.HH f llll I w me iatented Mar. 2l, 195C ZERO -MOMEN T SWIVEL N OZZLE Doyle C. Warren, Monrovia, Calif., assignor to Chiksan Company, Brea, Calif., a corporation of California Application May 11, 1948, Serial N o. 26,2,65
This invention relates to apparatus for delivering a high pressure jet, and it is a general object of the invention to provide a simple, practical and easily operated structure for handling uid and operable to deliver such :duid in a jet or stream.
The apparatus of the present invention can be used generally where uid is to be delivered from a nozzle at high pressure or in the form of a jet. For purpose of example the apparatus will be referred to as being used in connection with the mixing or agitation of material and in a situation where a high pressure jet of iiuid is delivered with the View of causing agitation or mixing of a body of material, such as mud, or the like. A mud mixing operation usch as is referred to is generally required in connection with the drilling of wells when such wells are drilled by the rotary method and mud laden fluid is employed in the course of drilling.
A general object of the present invention is to provide apparatus of the general character referred to effective to handle a substantial quantity of liquid at high velocity without disagreeable reaction such as generally results from the delivery of fluid from a nozzle. With the apparatus of the present invention the nozzle from which the duid is delivered is subject to being manipulated into any desired position and can be freely moved at will without the reaction resulting from the jet issuing from the nozzle interfering with the free manipulation of the nozzle.
A further object of the present invention is to provide apparatus of the general character referred to including a head supporting a nozzle through a neck in such manner as to enable the nozzle supporting neck to be moved in any desired direction, which vhead involves few simple parts and is freely operable.
The various objects and features of my invention will be fully understood from the following detailed description of a typical preferred form and application of the invention, throughout which description reference is made to the accompanying drawings, in which:
Fig. 1 is a side elevation of a typical embodiment of the present invention, showing it applied to a hoizontally disposed supply pipe. Fig. 2 is an enlarged detailed sectional view taken as indicated by line 2-2 on Fig. l. Fig. 3 is a sectional view taken as indicated by line 3-3 on Fig. 2. Fig. 4 is an enlarged detailed sectional view taken as indicated by line -ll on Fig. l.
Fig. 5 is an enlarged detailed sectional view taken 55 as indicated by line Y5---5 on Fig. 1 showing the lock means engaged or set, and Fig. 6 is a View similar to Fig. 5 showing the lock means released or disengaged.
The apparatus provided by the present invention is intended lfor application to a supply line or pipe P delivering fluid under the desired head or pressure, and it involves, generally, a swivel head, a neck A projecting from the head, a nozzle B at the outer end of the neck and a handle C projecting from the head to be convenient for the operator.
The head as provided by the present invention involves, generally, a straight tubular base secn tion D, an outer or neck section E, and a middle or intermediate section F. The head further involves means G coupling the inner end lli of the middle section F with the outer end H of the vbase section, means H connecting the inner end l2 `of the neck section with the outer end i3 of the middle section, lock means J engageable to set middle section against movement relative to the base section, and lock means K operable to set the neck section against movement relative to the middle section F.
The base section D of the head is a simple, straight, tubular part with its inner end I4 adapted to be connected to the supply pipe P While its outer end Il is coupled to the middle section F by the means G. In the case illustrated the end portion i4 of section D is internally threaded and the end of pipe P is threaded into the section D, as clearly shown in Fig. 3 of the drawings.
The middle section F of the head is a tubular L-shaped member having its inner end portion lil extending at right angles to its outer end portion I3. The inner end portion lli is connected or coupled to the base section D through the means G. In the case illustrated the end portions il! and Il of sections F and D, respectively, are telescopically related or engaged one inside the other, the end portions I l being shown engaged in the end portion l0.
The means G coupling sections F and D connects the sections for free movement or rotation of the section F on the section D about an axis coincidental with the longitudinal axis of the section D. The particular means G illustrated in the drawings involves a plurality of balls i5 carried in registering grooves I6 in the overlapped portion of the sections F and D. The balls are adapted to be arranged in place through an access opening ll normally closed by plug I8 and in practice lubricant is supplied to the balls through a suitable lubricant fitting I9.
In the preferred form of the invention sealing means are provided to prevent leakage between sections F and D. In the case illustrated a sealing ring '25 is shown engaged between the end of section D and the opening in section F, which receives section D. A second sealing ring 26 may be provided between the sections F and D to prevent lubricant from escaping from the coupling balls I5 and also to prevent foreign matter from entering between the sections F and D to interfere with proper operation of the balls.
The inner end I2 of the neck section E is joined with the outer end I3 of the middle section F and in the case illustrated the end portion I2 is engaged in the end portion I3. The means H couples the sections E and F so that section E is freely rotatable relative to section F about the longitudinal axis of the end portion I3 of the section F, which axis is at right angles to and intersects the axis of the inner end portion I of section F.
The means H may correspond in form and construction with the means G, in which case it involves balls 30 operating in grooves 3l and arranged in place through an access opening 32 normally closed by a plug 33. The balls are supplied with lubricant through a tting 34. A sealing ring 35 prevents escape of fluid from between sections E and F and a second sealing ring 36 acts between the sections E and F to prevent lubricant from escaping from between the sections and to prevent foreign matter from entering between the sections.
The neck section E of the head is a tubular I -shaped member with an outer end portion 40 extending at right angles to the inner end portion I2 which is coupled to the middle section F.
From the foregoing description it will be apparent that the head involving the three sections D, E and F is such as to enable the outlet or outer end 4I] of section E to be laced in various directions since the middle section F is freely rotatable about the axis of the base section while the neck section is freely rotatable about the axis on which the sections E and F are joined, which latter axis is at right angles to that rst mentioned.
The lock means K is provided to act between sections E and F and when engaged locks these sections against relative rotation. In the form of the invention illustrated the means K involves a lock plate or flange 50 on the neck section 43 immediately beyond or adjacent the outer end of the end portion I3 of section F, and a lock pin I carried by section F to cooperate with the plate. The pin is shown carried by section F to cooperate with openings 5I provided in the plate 5U.
The plate or flange 50 is an annular part extending completely around the portion I2 of section E and the openings 52 in the plate 59 are in an annular series concentric with the axis of the end part I2 of section E.
The pin 5I is slidably mounted on the exterior of the end portion I3 of section F to extend parallel with the axis of end portions I2 and I3 and to be so located as to enter into or register with the openings 52, one at a time, depending upon the position of section E relative to section F.
The particular structure shown in the drawings involves a pin carrying bracket 53 fixed on the exterior of the end portion I3 of section F as by welding W. The bracket 53 has spaced 4 lugs 54 and 55 with aligned openings 56 in which the pin 5I is slidably carried. A helical compression spring 51 is arranged on the pin 5I between the lugs or between lug 55 and an abutment pin 58 on pin 5I so that the spring normally yieldingly urges pin 5I toward the plate 50.
The pin 5I projects beyond lug 55 where it has a loop-shaped portion Bil forming a handle easily enga-ged by an operator. The bracket 53 is provided with a rest or shoulder BI suitably spaced from lug 55 and adapted to be engaged by the projecting handle portion 60 of pin 5I when the pin is rotated to the position shown in Fig. 6 of the drawings. Further, the bracket 53 has a flat side or shoulder 63 against which the handle portion 63 is located when the lock means is engaged as shown in Fig. 5. The shoulder or face 63 holds the pin 53 against rotation and maintains the handle portion 60 in a position where it does not project radially from the side of the head section F.
When it is desired to hold the lock means K fully released or disengaged or to leave it in such condition the pin 5I is withdrawn from plate 5I] against the resistance of spring 51 and is then rotated to engage the head or handle 6U of the pin on the shoulder 8 I, as shown in Fig. 6, where it will remain until deliberately rotated in a manner to release it for movement to the position shown in Fig. 5.
The lock means J acting to lock section F against rotation relative to section D may correspond in construction to the lock means K above described, in which case the plate 50 is fixed on head section D while the lock pin is carried by the head section F. The general arrangement and relationship of the lock means J and K will be readily understood from Fig. l of the drawings.
The neck A of the structure is an elongate tubular part characterized by an inner end portion 'I0 joined to and parallel with the outer end d of the head section E, an outer end portion 'I I, the axis of which intersects the point at which the axis of section D intersects the axis of the portions I2 and I3 of sections E and F, respectively, With the result that when the structure is in operation the reactionary force generated by fluid leaving the nozzle B on the end portion 'II of the neck has little or no tendency to operate sections of the head relative to each other, either the section E relative to section F or the sections E and F relative to section D.
The nozzle B on the outer end 'II of the neck may be of any suitable form or construction and it may vary in size and shape depending upon the character of work to be performed. In the case illustrated the nozzle is shown as involving an outwardly convergent body 36 tubular in form and coupled to the end of neck part II by a coupling 8| so that fluid passed by the neck flows therethrough and issues therefrom in a suitable stream or jet. In the particular case illustrated the neck A is one continuous length of tubing, or the like, suitably shaped or bent and it is permanently joined to the end portion Il of section E by welding 83.
The handle C is provided on or projects from the section E of the head and is preferably located so that it extends parallel with the end portion 40 of section E. In the particular case illustrated the handle is an elongate bar joined to section E through a suitable boss 85, the parts being related so that the neck A extends in one direction from section E while the handle C extends in the opposite direction therefrom. By thus locating the handle and by making it of suitable length it provides a part that can be very easily handled and which makes it convenient for an operator to direct or face the nozzle in the desired manner.
From the foregoing description it will be apparent that the present invention provides a head construction which may be applied to a supply pipe P whether the pipe be horizontally disposed, as shown in the drawings, or vertically disposed, and that the head is such as to enable an operator to manipulate the neck and consequently the nozzle into any desired position. The means G and H incorporated in the head make for free smooth operation of the head and the head construction involving but three main sections D, E and F related as shown in Fig. 3, provides a continuous smooth ow passage between the pipe P and the neck A. It will be apparent how the lock means J and K may be utilized when desired to set parts of the head against relative movement so that the operation of the neck and nozzle may be limited or set, as circumstances may require.
Having described only a typical preferred form and application of my invention, I do not Wish to be limited or restricted to the specic details herein set forth, but wish to reserve to myself any variations or modications that may appear to those skilled in the art and fall within the scope of the following claims:
Having described my invention, I claim:
1. In combination, a nozzle, a neck carrying the nozzle, and a swivel head carrying the neck, the head including a base section, an L-shaped middle section having its inner end joined to the outer end of the base section to rotate relative thereto, and an L-shaped neck section having its inner end joined to the outer end of the middle section to rotate relative thereto, the axis on which the base and middle sections are joined being normal to the axis on which the middle and neck sections are joined, the neck having its inner end portion joined to and projecting from the outer end of the neck section and having an outer portioncarrying the nozzle and laterally offset from the inner end portion With, the axis of said outer portion intersecting the point of intersection of the said axes of the head.
2. In combination, a nozzle, a neck carrying the nozzle, and a swivel head carrying the neck, the head including a base section, an L-shaped middle section, anti-friction means rotatably joining the inner end of the middle section with the outer end of the base section, an L-shaped neck section, and antifriction means rotatably joining the inner end of the neck section with the outer end of the middle section on an axis intersecting and normal to the axis of the rst mentioned means, the neck having its inner end portion joined to and projecting from the outer end of the neck section and having an outer portion carrying the nozzle and laterally oiset from the inner end portion with, the axis of said outer portion intersecting the point of intersection of the said axes of the head.
DOYLE C. WARREN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,085,973 Conkling Feb. 3, 1914 1,984,360 Corley Dec. 18, 1934 2,227,779 Grant Jan. 7, 1941 2,267,194 Drill Dec. 23, 1941 2,388,841 Goodwin Nov. 13, 1945 2,451,269 Allen et al. Oct. 12, 1948