US2086724A - Hydraulic giant deflector - Google Patents

Description

July 13, 1937c c. B. M AULAY HYDRAULIC GIANT DEFLECTOR Filed July 19, 1955 INVENTOR. CazsrgnBM-Auur ATTORNEY Patented July 13, 1937 PATENT OFFICE HYDRAULIC GIANT DEFLECTOR Chester B. McAulay, Palo Alto, Calif., assignor to Joshua Hendy Iron Works, a corporation of California Application July 19, 1935, Serial No. 32,186

3 Claims.

My invention relates to improvements in deflectors for hydraulic giants.

In hydraulic work where water is used under high pressure, deflectors are necessary to facilitate directing or moving the nozzle from which water is ejected. The nozzle assembly, or giant, as it is called, is movable in' both the vertical and horizontal axis so the stream of water may be freely played on the material. Where extremely high pressures are used the giant cannot be moved by hand due to the weight of the giant combined with friction caused by back pressure resulting from the great force at which water leaves the nozzle. A circular deflector is mounted on the end of the nozzle. This deflector, to

which a handle is attached, is mounted for universal movement, consequently by a slight movement of the handle the deflector ring is moved into contact with the stream of. water. The reaction of the stream on the deflector ring moves the giant in the direction of contact. 7 In hydraulic work, a series of difierent sized nozzles are used as the work progresses, as the nozzle determines the type of stream and different materials require different types of streams to work them effectively. In the case of hydraulic mining Where the material is first cut away and then subsequently washed down thru traps a series of many nozzles may be used during the days Work. Each size nozzle requires a special size deflector ring as 'there'is a definite relation which must be preserved between the size of the jet of water issuing from anozzle and the inner wall of the deflector ring. 'If the wrong size deflector is used, the water stream becomes distorted and practically useless, therefore the usual practice is to use an individual deflector assembly for each size nozzle.

It is an object of my invention to provide a deflector ring housing adapted to receive different sized deflector rings.

A further object is to provide a deflector ring mounting device which is easily attached to different sized nozzles.

A further object is to provide an interchangeable deflector assembly thereby obviating the necessity of having a complete deflector unit for each sized nozzle.

In the drawing which is a part hereof:

Fig. 1 is a side elevation of a giant embodying my deflector, V

Fig. 2 is a top plan view of my deflector partially broken away,

Figs. 3 and 4 are central sectional views,.show

ing the deflector housing attached to different sized nozzles and carrying different sized deflector rings,

Fig. 5 is a cross section view taken on line 5-5 of Fig. 3,

Fig. 6 is a central section view partially broken away showing the deflector unit in a tilted position, and

Fig. 7 is a perspective view of a deflector ring.

Fig. 1 shows the giant consisting of elbow 8 which has attaching member 9 bolted to log H] by means of lag bolt ll. Mounted to rotate on elbow 8 is elbow I2 attached by king pin l3. Formed on the other end of elbow i2 is ball l4 constructed to engage socket I5 formed in the base of nozzle butt Hi and attached by pins l5a in such a manner that the nozzle butt [6 is movable in the vertical plane. Suitable friction type packing means are provided to maintain a leakproof joint between the elbows 8 and I2. Elbow l2 may be moved in a complete circle in the 20 horizontal plane as it is mounted on elbow 8 by king pin I3. The ball and socket joint l4, i5 is usually constructed so that the giant can be lifted through a range of about 11 below the horizontal to about-55 above the horizontal, in 25 other words, a movement of about 66 degrees.

The outer end "or nozzle butt I 6 is suitably threaded to receive nozzle H, to which is pivotally attached deflector base ring l8, by means of studs or boltsfl9 (see Fig. 5). 50

'Deflector body 20 is pivotally attached to ring 18 at points opposite pins I9, by lug member 2| and bolts or rivets 22. This mounting for body 20 gives it a universal movement.

Deflector body 20 is suitably threaded to re- 35 ceive any one of a series .of deflector rings 23. Handle 24 is suitably attached to a projecting arm 29 integral with deflector ring body 20 as shown.

In Fig. 2 which is a top plan view partially 40 broken away further details of this deflector and nozzle construction are shown. Slot 25 is formed in deflector body 2!) to allow clearance for pin l9 when the deflector is swung on the axis formed by pins 22. The threaded connection between 0 deflector body 2!] and the replaceable deflector ring 23 is clearly shown in this view.

Fig. 3 is a cross-sectional view of a portion of the nozzle and of the deflector, with the stream of water 28 issuing forth. This view shows the several parts in their proper functioning relationship. Except when the deflector is being used to move the hydraulic giant into a new working'position, the inner surface of deflector ring 23 should be kept out of contact with the stream of water 23. This air space I have indicated by the numeral 27. The water issues forth at such a speed that an undesirable vacuum would soon build up between the deflector ring 23 and the stream 28 and cause the stream 28 to broaden or break out into contact with the ring 23 with a consequent reduction in its force and concentration. To remedy this trouble the deflector body 23 is spaced away from the nozzle l1 and provides air space 26 connecting with air space 21. Thus, the movement of the water stream 28 through the deflector ring 23 induces only a free flow of air through air spaces 26 and 21, and a vacuum is prevented from forming.

in Fig. 4 shows the same deflector body of Fig. 3 mounted on a smaller nozzle [1. To maintain the correct relationship between the water stream 28 and the inside of the deflector ring, a ring 23 having a smaller inside diameter but the 20 same outer diameter is screwed in the body 20.

This keeps air space 2i in correct proportion to the smaller stream of water 28, and positions the ring 23 so that it can be moved conveniently into contact with the stream 28.

Fig. 5 is a cross section view taken on line 5ii of Fig. 3, showing pins 553 and 22, deflector base ring it, deflector body 253, which is formed slot to clear pins it, when body 26 is swung on pins 22, nozzle ii, and air space 26 between the deflector body 28 and nozzle II.

In Fig. 6 the deflector ring is shown tilted on the axis formed by pins 22 which would result in raising the giant as deflector ring 23 comes in contact with water stream 28.

Fig. '7 is a perspective view of one of the series of removable deflector rings.

In operating a hydraulic giant employing a deflector assembly, the position of the giant is changed by the movement of handle 24 attached to the deflector body 20. This moves the deflector ring 23 into contact with the stream of water 28 (see Fig. 6) and the reaction of the water produces the desired movement of the giant.

The direction in which the nozzle assembly and consequently the stream of water may be moved is usually unlimited on the horizontal axis, the nozzle assembly being capable of describing a complete circle. On the vertical axis the movement possible is usually through a range of about 66. These possible movements of the nozzle result in the water stream being controllable so it can be employed in cutting and washing away a relatively high bank of gravel and rock, or mud,

or other material.

During the succeeding operations of cutting and washing away the material, several sized nozzles are necessary depending upon the type and stage of the operation. In cutting, several 50 diflerent types of streams are used as the operation progresses or as changes occur in the material. In washing the loose material, it is again necessary to change the nozzles as the operation progresses.

65 In the type of deflectors which are attached to the nozzle-end it has been the practice to have a complete deflector assembly for each nozzle. This has been necessary because there is a definite relation, which must be maintained,

between the size of the water stream and the inside opening of the deflector ring, to prevent the stream of water from becoming distorted.

By the use of my invention consisting of a deflector assembly capable of being attached to difierent sized nozzles and the assembly constructed to receive different sized deflector rings, I obviate the necessity of having one of these costly units for each nozzle.

In hydraulic work when it becomes necessary to change the size of the nozzle, the deflector assembly is removed from the detached nozzle and placed on the new nozzle. The deflector ring 23 is then removed from the outer housing and the correct sized ring is screwed into place.

It is to be understood that the forms of my invention, herewith shown and described, are to be taken as preferred examples of the same, and that various changes in the shape, size and arrangement of parts may be resorted to, without departing from the spirit of my invention, or the scope of the subjoined claims.

I claim:

1. In a hydraulic giant the combination of a nozzle butt, a nozzle removably secured thereto, a removable deflector base ring pivoted to said nozzle, a deflector body pivoted to said base ring at points 90 removed from the first mentioned pivots, and a deflector ring adapted to be removably secured in said deflector body, said ring having an inside diameter suiflciently greater than the inside diameter of the discharge bore of said nozzle, so that the stream of Water issuing from said nozzle does not contact the inside wall of said ring when the bore of the latter and said nozzle are axially aligned.

2. In a hydraulic giant the combination of a nozzle butt, a nozzle removably secured thereto, a removable deflector base ring pivoted to said nozzle, a defiectorbody pivoted to said base ring at points 90 removed fromthe first mentioned pivots, and a deflector ring adapted to be removably secured in said deflector body, said ring having an inside diameter sufliciently greater than the inside diameter of the discharge bore of said nozzle, so that an air film exists between the stream of water issuing from said nozzle and the inner wall of said ring when the bore of the latter and said nozzle are axially aligned.

3. In a hydraulic giant, a nozzle butt mounted for universal movement upon a rigid base, a nozzle removably secured to said butt, 9. removable deflector base ring pivotally mounted on said nozzle, a deflector body pivotally mounted on said base ring at right angles to the latters connection with said nozzle so that said deflector body is capable of universal movement about said nozzle, and a deflector ring removably secured in said deflector body, said ring having an internal bore sufficiently larger than the outlet end of said nozzle, so that the internal bore of said ring is spaced away from the stream of water issuing from said nozzle bore at all times, except as a portion of said deflector ring wall is moved into contact with the stream of water when it is desired to elTect a change in the direction of said stream by the movement of the hydraulic giant about its axis.

, CHESTER B. MCAULAY.

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