GB1584971A

GB1584971A - Industrial component washing machines

Info

Publication number: GB1584971A
Application number: GB7063/77A
Authority: GB
Original assignee: Cera International Ltd
Current assignee: Cera International Ltd
Priority date: 1977-02-18
Filing date: 1977-02-18
Publication date: 1981-02-18
Also published as: IT7852933V0; FR2392727A1; CA1098009A; IT1108074B; DE2806936A1; IT7867330A0

Description

(54) IMPROVEMENTS IN OR RELATING TO INDUSTRIAL COMPONENT WASHING MACHINES (71) We, CERA INTERNATIONAL LIMITED, a British Company of Greenwood House, 4/7 Salisbury Court, London EC4, England, do hereby declare the invention, for which we pray that a Patent may be granted to us, and the method by which it is to be performed to be particularly described in and by the following statement: This invention relates to industrial component washing machines and to a method of mounting a washing fluid jet assembly demountably on a washing fluid header pipe of such a machine.

One object of this invention is to facilitate mounting and locating such a jet assembly so that, when-in use it directs a pressure jet of washing fluid at the corresponding specific part of a component which is supported and located at the respective station, as well as being demountable for cleaning and remountable in substantially the same location after cleaning.

According to one aspect of this invention there is provided a method of mounting a washing fluid jet assembly demountably on a washing fluid header pipe of an industrial component washing machine so that a washing fluid feeder passage formed by washing fluid feeder means in that jet assembly is aligned with a washing fluid outlet port in the header pipe, where structure of the washing fluid feeder means at the end of the passage remote from a nozzle to which washing fluid is directed along that passage in use is secured to a first part of a two part clamp arrangement said first clamp part having a hole formed through it in alignment with the feeder passage and being separable from the second clamp part to which it is adapted to be fastened by releasable fastening means by which the two parts are located positively one with respect to the other when fastened together, the two clamp parts then being placed on opposite sides of the header pipe and being fastened together by the fastening means with the header pipe extending between them, the two clamp parts being configured so that the jet assembly and the header pipe are free for relative movement when they, the clamp parts, are fastened together on opposite sides of the header pipe, and the hole in the said first clamp part being aligned with the port in the wall of the header pipe whereupon the clamp parts are clamped to the.

header pipe by clamping action exerted by the fastening means whereafter the second clamp part is secured to the header pipe whilst still secured to the first clamp part and said hole and said port are in alignment so that said jet assembly can be demounted for cleaning and remounted in substantially the same location by releasing the refastening said fastening means to allow separation of said first clamp part from said second clamp part and said header pipe and subsequent refastening of said clamp parts in substantially the same location on opposite sides of said header pipe.

According to another aspect of this invention there is provided an industrial component washing machine for washing an industrial component supported and located at a washing station, the machine comprising a washing fluid header pipe having an aperture formed in its wall; a jet assembly mounted upon the header pipe and located at said washing station, said jet assembly comprising a jet nozzle and washing fluid feeder means having a passage formed therein, said passage being in fluid communication with the bore of the header pipe through said aperture and being adapted to convey washing fluid to the jet nozzle; the machine being so arranged that, when operated to wash an industrial component which is supported and located at said washing station, washing fluid is fed under pressure via the header pipe and the feeder pipe to the jet nozzle which directs that fluid at a cor responding specific part of the industrial component; wherein said jet assembly is mounted upon the header pipe and located at said washing station by a releasable clamping assembly which comprises a two part clamp arrangement with first and second clamp parts disposed on opposite respectively corresponding sides of said header, said first clamp part being secured to the washing fluid feeder means at the end of the passage remote from the jet nozzle and having a hole in it in fluid communication with the passage, said second clamp part being located on the opposite side of the header pipe and being secured to the header pipe, and releasable fastening means by which the first clamp part, which would otherwise be free for sliding movement along the header pipe, is fastened releasably to the second clamp part so that the two clamp parts are located positively one with respect to the other on opposite sides of the header pipe whereby said jet nozzle assembly can be demounted for cleaning and remounted in substantially the same location by releasing and refastening said releasable fastening means to allow separation of said first clamp part from said second clamp part and said header pipe and subsequent refastening of said clamp parts in substantially the same location on opposite sides of said header pipe.

The jet nozzle may be formed as a passage through a body having a circular peripheral surface, e.g. a spherical body, the body being seated in an aperture which is formed in structure of the washing fluid feeder means with the circular peripheral surface of the body engaged with the periphery of the aperture, and clamping means being provided for clamping the body in a selected orientation relative to the structure of the washing fluid feeder means.

Where the jet nozzle is designed to form a spreader jet of washing fluid, the outlet end of the passage through the body is preferably formed by a notch which has outwardly divergent side walls. Conveniently, the passage through the body also includes a tapered portion which tapers towards the notch and which has its smaller diameter end coincident with the inner smaller crosssectional area end of the notch. The passage through the body may be a diametral passage.

The washing fluid feeder means conveniently comprise a pipe. The aperture may be formed by one end of the pipe. The clamping means may comprise a nut which is screwed onto the end of the pipe that forms the aperture.

Formation of the jet nozzle in a body which has a circular surface so that that body can be clamped in a selected one of a range of positions relative to the structure of the washing fluid feeder means in which it is seated within the aperture with its circular surface engaged with the periphery of the aperture, enables ready adjustment of the alignment of the jet nozzle with the corresponding specific part of a component which is supported and located at the respective station either during initial installation of the jet nozzle assembly during initial fabrication of the washing machine, or during remounting and location of the jet assembly after that jet assembly has been demounted to enable the jet nozzle to be cleaned, or enables realignment of the jet nozzle to be effected in the event of a modification of the specific part being made to the component that is to be supported and located at the respective station of the washing machine.

Preferably sealing means are clamped between the jet assembly and the header pipe to seal against leakage of washing fluid between the jet assembly and the header pipe. Conveniently the sealing means comprise a gasket which is formed of elastomeric material and which surrounds the aperture in the wall of the header pipe and the adjacent end of the bore of the feeder pipe.

Preferably the second clamp part is secured to the header pipe by bonding, for example by welding. Conveniently the releasable fastening means comprise externally threaded means on one of the clamp parts and corresponding aperture means in the other clamp part, the two clamp parts being fastened together by interengagement of the externally threaded means and the aperture means and engagement of an end portion of each such externally threaded means that projects from the aperture means on the opposite side of the other clamp part from said one clamp part by co-operating internally tapped means.

The preferred form of two part clamp arrangement comprises a stirrup clamp, the arcuate clamp portion comprising said first clamp part and the planar portion comprising said second clamp part.

The Complete Specification filed in connection with our co-pending Patent Applications Nos. 13766/76 (Serial No. 15734241 and 20343/76 (Serial No. 15790251 describe and claim forms of industrial component washing machines of the kind to which this invention is applicable.

Jets are provided at each of the pre-wash and washing stations of the washing section of such industrial component washing machines. The orientation of each jet is such that it is aligned with a corresponding blind hole, bore, cavity or other surface part of an engine block which is supported and located at the respective washing station so that washing fluid fed to and through each jet nozzle under pressure is directed at that aligned part of the engine block as a jet.

The machine has a sump into which washing fluid that drains from each engine block that is passed through the washing section to the drying section is directed. A first pump is operable to draw washing fluid from the sump through primary filtering means which preferably comprise a horizontal drum filter which operates to separate particles of solid matter from the washing fluid, and to feed the filtered washing fluid to a storage tank.

A second pump is operable to draw washing fluid from the storage tank and to feed it under pressure to the jets at each of the pre-wash and washing stations of the washing section via header pipes.

The present invention is concerned with an arrangement for clamping a washing fluid jet assembly releasably to a washing fluid header pipe of the industrial component washing machine, and will be described more fully with reference to the accompanying drawings of which: Figure 1 is a partly sectioned view of one form of washing fluid jet assembly and releasable clamp arrangement by which that jet assembly is clamped to a washing fluid header pipe and in which this invention is embodied, the header pipe being shown in section; Figure. 2 is an elevation of the releasable clamp arrangement shown in Figure 1 as seen along arrow A in Figure 1; Figure 3 is a section on the line III-III in Figure 1; Figure 4 is a sectioned fragmentary view similar. to part of Figure 1 but showing details of another form of jet nozzle.

Referring to Figures 1, 2 and 3, a jet assembly 10 is clamped to a washing fluid header pipe 11 by a two part stirrup clamp arrangement 12.

The first part of the stirrup clamp arrangement 12 is a casting. The casting has an arcuate portion 13, which has a hole 19 formed through it at its centre, and a tubular cuff 21 which projects from the convex surface of the arcuate portion 13 coaxially with the hole 19. The arcuate portion 13 carries a screw threaded stud 15 at either end. The bore of the cuff 21 is tapped.

The arcuate portion 13 of the first clamp part receives the header pipe 11 within the bight formed by its concave surface. A gasket 20, which is formed from a suitable elastomeric sheet material, such as neoprene rubber, and which has a hole in it of substantially the same diameter as the hole 19, is located between the header pipe 11 and the concave surface of the arcuate portion 13 with its hole aligned with the hole 19.

The second part of the stirrup clamp arrangement 12 is a clamp plate 14 which is tangential to the outer surface of the header pipe 11 to which it is welded at its centre.

Each stud 15 projects through a respective one of a pair of holes 16 which are formed in the clamp plate 14. Figure 2 shows that the holes 16 and the studs 15 are staggered.

Each of a pair of nuts 17 is screwed onto a respective one of the screw threaded studs 15 to fasten the first clamp part releasably to the clamp plate 14 and to clamp the gasket 20 between the arcuate portion 13 and the header pipe 11.

An outlet port 18 is formed in the wall of the header pipe 11 opposite the welded joint between the header pipe 11 and the clamp plate 14. The diameter of the outlet port 18 is substantially the same as that of the hole 19 and the hole in the gasket 20 with which it is aligned.

The jet assembly 10 comprises a washing fluid feeder pipe 22 which is a length of straight pipe of substantially uniform diameter and which has screw threads formed on its outer surface at either end. One end of the pipe 22 is screwed into the cuff 21. A spherical body 23 is seated in the aperture 24 that is formed by the end of the bore of the feeder pipe 22 remote from the cuff 21.

A diametral passage through the spherical body 23 forms a spreader jet nozzle. The end portion 25 of the diametral passage that forms the end of the dimetral passage within the bore of the feeder pipe 22 is funnel shaped, tapering towards the centre of the spherical body 23. The central portion 26 of the diametral passage has a substantially uniform cross-section and extends axially for a distance greater than the radius of the spherical body 23. A transverse notch 27 is formed in the outer surface of the spherical body 23 at the outer end of the diametral passage. The notch 27 was formed with a V-shaped tool so that it has side walls which converge towards the centre of the body 23.

The diametral passage has another tapered portion by which the notch 27 and the central portion 26 are interconnected. That other tapered portion tapers towards the notch 27 so that a throat of restricted dimensions is formed at its junction with the notch 27 at the base of the notch 27. A nut 28 is screwed onto the end of the feeder tube 22 that is remote from the tubular cuff 21. An annular ridge 29 is formed in the radially inner surface of the nut 28 and engages the outer surface of the spherical body 23. The equator of the spherical body 23 extends between the periphery of the aperture 24 and the annular ridge 29 so that the spherical body 23 is trapped between the nut 28 and the feeder tube 22 and can be clamped therebetween against movement relative to the nut 28 and the feeder tube 22.

During initial assembly of the industrial washing machine, the first clamp part of the stirrup clamp arrangement 12, the jet assembly 10 to which the first clamp part is bonded coaxially and the gasket 20 are presented to the header pipe 11 so that the bore of the feeder tube 22, the hole 19 through the arcuate portion 13 of the first clamp part and the hole in the gasket 20 are aligned with the outlet port 18 that is formed in the header pipe 11. The clamp plate 14 is then fitted over the screw threaded studs 15 on the opposite side of the header pipe 11. Figure 1 shows that the configuration of the first clamp part and of the clamp plate 14 as well as of the header pipe 1 1 is such that the clamp parts and the header pipe are free for relative movement either angularly or parallel to the axis of the pipe. The nuts 17 are tightened up to fasten the clamp plate 14 to the arcuate clamp part 13 and clamp the header pipe 11 between the two parts of the stirrup clamp arrangement 12 with the gasket 20 clamped between the header pipe 11 and the arcuate portion 13. Whilst held in that position by the clamping action of the nuts 17 engaged on the screw threaded studs 15, the clamp plate 14 is welded to the adjacent part of the header pipe 11 which it contacts.

In order to align the axis of the jet nozzle with the bore or other corresponding part of the component towards which it is intended to direct a jet of pressure fluid when the industrial washing machine is in operation, the nut 28 is slackened off from the feeder pipe 22 to allow angular movement of the spherical body 23 relative to the feeder pipe 22 and the nut 28. A bar is inserted through the throat and into the uniform diameter portion 26 of the diametral passage in the spherical body 23 and employed as an aid to align that passage with the bore or corresponding part of the component towards which the pressure jet of washing fluid is to be directed. Once the jet nozzle formed by the diametral passage through the spherical body 23 has been satisfactorily aligned by this procedure, the nut 28 is tightened up to fix the spherical body 23 in that position.

It will be appreciated that the jet assembly 10 can be released from the header pipe 11 readily by release of the nuts 17 and separation of the first clamp part from the clamp plate 14 that is welded to the header pipe 11. so that the bore of the feeder pipe 22 and the diametral passage through the spherical body 23 can be cleared of any swarf or other foreign matter that may have blocked it. The jet assembly 10 is readily relocated in substantially the same location relative to the header pipe 11 by reassembling the two part stirrup clamp arrangement 12 and fastening the nuts 17 upon the respective screw threaded ends 15.

The notch 27 of the jet nozzle results in the pressure jet of washing fluid that is directed by the jet assembly 10 towards the corresponding part of a component that is supported and located at the washing station being a divergent jet of washing fluid so that the jet nozzle is known as a spreader jet nozzle. Another form of pressure jet nozzle which has been proposed comprises the formation in a similar spherical body 23 of a transverse parallel sided slot instead of the notch 27 and the other tapered passage portion that co-operates with that notch to form the throat. The width of the parallel sided slot is less than the diameter of the passage portion 26 that it intersects and its longitudinal axis intersects the axis of the diametral through passage.

Figure 4 shows another form of spherical body 23A which differs from the spherical body 23 by omission of the notch 27 and the other tapered portion of the diametral passage, the substantially uniform cross-section portion 26A of the diametral passage extending to the outer end of that diametral passage remote from the funnel shaped portion 25A so that the pressure jet emitted by the jet nozzle of the spherical body 23B will be a plain jet.

The spherical body 23 or 23A may be formed from a plastics material.

Various other modifications of the embodiment of the invention that has been described above with reference to Figures 1 to 4 of the accompanying drawings may be made if desired. For example the arcuate part of the stirrup clamp arrangement and the tubular cuff may be separate pieces welded together. A top hat section seal may be used instead of the gasket 20, the tubular part being inserted into the hole 19 to locate the seal, and the brim being shaped to fit the arcuate space between the arcuate clamp portion and the header pipe 11 within which it is clamped.

WHAT WE CLAIM IS: 1. A method of mounting a washing fluid jet assembly demountably on a washing fluid header pipe of an industrial component washing machine so that a washing fluid feeder passage formed by washing fluid feeder means in that jet assembly is aligned with a washing fluid outlet port in the header pipe, wherein structure of the washing fluid feeder means at the end of the passage remote from a nozzle to which washing fluid is directed along that passage in use is secured to a first part of a two part clamp arrangement. said first clamp part having a hole formed through it in alignment with the feeder passage and being separable from the second clamp part to which it is adapted to be fastened by releasable fastening means by which the two parts are located positively one with respect to the other when fastened together. the two clamp parts then being placed on opposite sides of the header pipe and being fastened together by the fastening

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. assembly 10 to which the first clamp part is bonded coaxially and the gasket 20 are presented to the header pipe 11 so that the bore of the feeder tube 22, the hole 19 through the arcuate portion 13 of the first clamp part and the hole in the gasket 20 are aligned with the outlet port 18 that is formed in the header pipe 11. The clamp plate 14 is then fitted over the screw threaded studs 15 on the opposite side of the header pipe 11. Figure 1 shows that the configuration of the first clamp part and of the clamp plate 14 as well as of the header pipe 1 1 is such that the clamp parts and the header pipe are free for relative movement either angularly or parallel to the axis of the pipe. The nuts 17 are tightened up to fasten the clamp plate 14 to the arcuate clamp part 13 and clamp the header pipe 11 between the two parts of the stirrup clamp arrangement 12 with the gasket 20 clamped between the header pipe 11 and the arcuate portion 13. Whilst held in that position by the clamping action of the nuts 17 engaged on the screw threaded studs 15, the clamp plate 14 is welded to the adjacent part of the header pipe 11 which it contacts. In order to align the axis of the jet nozzle with the bore or other corresponding part of the component towards which it is intended to direct a jet of pressure fluid when the industrial washing machine is in operation, the nut 28 is slackened off from the feeder pipe 22 to allow angular movement of the spherical body 23 relative to the feeder pipe 22 and the nut 28. A bar is inserted through the throat and into the uniform diameter portion 26 of the diametral passage in the spherical body 23 and employed as an aid to align that passage with the bore or corresponding part of the component towards which the pressure jet of washing fluid is to be directed. Once the jet nozzle formed by the diametral passage through the spherical body 23 has been satisfactorily aligned by this procedure, the nut 28 is tightened up to fix the spherical body 23 in that position. It will be appreciated that the jet assembly 10 can be released from the header pipe 11 readily by release of the nuts 17 and separation of the first clamp part from the clamp plate 14 that is welded to the header pipe 11. so that the bore of the feeder pipe 22 and the diametral passage through the spherical body 23 can be cleared of any swarf or other foreign matter that may have blocked it. The jet assembly 10 is readily relocated in substantially the same location relative to the header pipe 11 by reassembling the two part stirrup clamp arrangement 12 and fastening the nuts 17 upon the respective screw threaded ends 15. The notch 27 of the jet nozzle results in the pressure jet of washing fluid that is directed by the jet assembly 10 towards the corresponding part of a component that is supported and located at the washing station being a divergent jet of washing fluid so that the jet nozzle is known as a spreader jet nozzle. Another form of pressure jet nozzle which has been proposed comprises the formation in a similar spherical body 23 of a transverse parallel sided slot instead of the notch 27 and the other tapered passage portion that co-operates with that notch to form the throat. The width of the parallel sided slot is less than the diameter of the passage portion 26 that it intersects and its longitudinal axis intersects the axis of the diametral through passage. Figure 4 shows another form of spherical body 23A which differs from the spherical body 23 by omission of the notch 27 and the other tapered portion of the diametral passage, the substantially uniform cross-section portion 26A of the diametral passage extending to the outer end of that diametral passage remote from the funnel shaped portion 25A so that the pressure jet emitted by the jet nozzle of the spherical body 23B will be a plain jet. The spherical body 23 or 23A may be formed from a plastics material. Various other modifications of the embodiment of the invention that has been described above with reference to Figures 1 to 4 of the accompanying drawings may be made if desired. For example the arcuate part of the stirrup clamp arrangement and the tubular cuff may be separate pieces welded together. A top hat section seal may be used instead of the gasket 20, the tubular part being inserted into the hole 19 to locate the seal, and the brim being shaped to fit the arcuate space between the arcuate clamp portion and the header pipe 11 within which it is clamped. WHAT WE CLAIM IS:

1. A method of mounting a washing fluid jet assembly demountably on a washing fluid header pipe of an industrial component washing machine so that a washing fluid feeder passage formed by washing fluid feeder means in that jet assembly is aligned with a washing fluid outlet port in the header pipe, wherein structure of the washing fluid feeder means at the end of the passage remote from a nozzle to which washing fluid is directed along that passage in use is secured to a first part of a two part clamp arrangement. said first clamp part having a hole formed through it in alignment with the feeder passage and being separable from the second clamp part to which it is adapted to be fastened by releasable fastening means by which the two parts are located positively one with respect to the other when fastened together. the two clamp parts then being placed on opposite sides of the header pipe and being fastened together by the fastening

means with the header pipe extending between them, the two clamp parts being configured so that the jet assembly and the header pipe are free for relative movement when they, the clamp parts, are fastened together on opposite sides of the header pipe, and the hole in the said first clamp part being aligned with the port in the wall of the header pipe whereupon the clamp parts are clamped to the header pipe by clamping action exerted by the fastening means whereafter the second clamp part is secured to the header pipe whilst still secured to the first clamp part and said hole and said port are in alignment so that said jet assembly can be demounted for cleaning and remounted in substantially the same location by releasing and refastening said fastening means to allow separation of said first clamp part from said second clamp part and said header pipe and subsequent refastening of said clamp parts in substantially the same location on opposite sides of said header pipe.

2. An industrial component washing machine for washing an industrial component supported and located at a washing station, the machine comprising a washing fluid header pipe having an aperture formed in its wall; a jet assembly mounted upon the header pipe and located at said washing station, said jet assembly comprising a jet nozzle and washing fluid feeder means having a passage formed therein, said passage being in fluid communication with the bore of the header pipe through said aperture and being adapted to convey washing fluid to the jet nozzle; the machine being so arranged that, when operated to wash an industrial component which is supported and located at said washing station, washing fluid is fed under pressure via the header pipe and the feeder pipe to the jet nozzle which directs that fluid at a corresponding specific part of the industrial component; wherein said jet assembly is mounted upon the header pipe and located at said washing station by a releasable clamping assembly which comprises a two part clamp arrangement with first and second clamp parts disposed on opposite respectively corresponding sides of said header. said first clamp part being secured to the washing fluid feeder means at the end of the passage remote from the jet nozzle and having a hole in it in fluid communication with the passage. said second clamp part being located on the opposite side of the header pipe and being secured to the header pipe. and releasable fastening means by which the first clamp part. which would otherwise be free for sliding movement along the header pipe. is fastened releasably to the second clamp part so that the two clamp parts are located positively one with respect to the other on opposite sides of the header pipe whereby said jet nozzle assembly can be demounted for cleaning and remounted in substantially the same location by releasing and refastening said releasable fastening means to allow separation of said first clamp part from said second clamp part and said header pipe and subsequent refastening of said clamp parts in substantially the same location on opposite sides of said header pipe.

3. An industrial component washing machine according to Claim 2, wherein the jet nozzle is formed as a passage through a body having a circular peripheral surface, the body being seated in an aperture which is formed in structure of the washing fluid feeder means with the circular peripheral surface of the body engaged with the periphery of the aperture, and clamping means are provided for clamping the body in a selected orientation relative to the structure of the washing fluid feeder means.

4. An industrial component washing machine according to Claim 3, wherein the body is spherical.

5. An industrial component washing machine according to Claim 4, wherein the outlet end of the passage through the body is formed by a notch which has outwardly divergent side walls.

6. An industrial component washing machine according to Claim 5, wherein the passage through the body also includes a tapered portion which tapers towards the notch and which has its smaller diameter end coincident with the inner smaller crosssectional area end of the notch.

7. An industrial component washing machine according to any one of Claims 4 to 6, wherein the passage through the body is a diametral passage.

8. An industrial component washing machine according to any one of Claims 2 to 7 wherein the washing fluid feeder means comprise a pipe.

9. An industrial component washing machine according to Claim 8, wherein the aperture is formed by one end of the pipe.

10. An industrial component washing machine according to Claim 9, wherein the clamping means comprise a nut which is screwed onto the end of the pipe that forms the aperture.

11. An industrial component washing machine according to any one of Claims 1 to 10. wherein sealing means are clamped between the jet assembly and the header pipe to seal against leakage of washing fluid between the jet assembly and the header pipe.

12. An industrial component washing machine according to Claim 11, wherein the sealing means comprise a gasket which is formed of elastomeric sheet material and which surrounds the aperture in the wall of the header pipe and the adjacent end of the bore of the feeder pipe.

13. An industrial component washing machine according to any one of Claims 1 to 12, wherein the second clamp part is bonded to the header pipe.

14. An industrial component washing machine according to Claim 13, wherein the second clamp part is welded to the header pipe.

15. An industrial component washing machine according to any one of Claims 1 to 14, wherein the releasable fastening means comprise externally threaded means on one of the clamp parts and corresponding aperture means in the other clamp part, the two clamp parts being fastened together by interengagement of the externally threaded means and the aperture means and engagement of an end portion of each such externally threaded means that projects from the aperture means on the opposite side of the other clamp part from said one clamp part by co-operating internally tapped means.

16. An industrial component washing machine according to any one of Claims 1 to 14, wherein the two part clamp arrangement comprises a stirrup clamp having an arcuate clamp portion as said first clamp part and a planar portion as said second clamp part.

17. A method of mounting a washing fluid jet assembly demountably on a washing fluid header pipe substantially as described hereinbefore with reference to the accompanying drawings.

18. An industrial component washing machine for washing an industrial component supported and located at a washing station,-the machine comprising a washing fluid header pipe and a jet assembly mounted upon that header pipe substantially as described hereinbefore with reference to and as illustrated in Figures 1 to 3 of the accompanying drawings or modified substantially as described hereinbefore with reference to and as illustrated in Figures 4 of the accompanying drawings.