US2082330A - Hydraulic gun - Google Patents

Description

June 1, 1937. c. F. FREDE ET AL HYDRAULIC GUN Fil ed April 18, 1928 4 Sheets-Sheet l 5 E M if y WWW E 5% VF T 7% T r June 1, 1937. I c. FREDE ET AL 2,082,330

HYDRAULIC GUN Filed April 18, 1928 4 Sheets-Sheet 3 TTOR 5Y5 Jung 1, 1937.

c. F. FREDE ET AL HYDRAUL IC GUN Filed April 18, 1928 4 Sheets-Sheet 4 Ii w. \\\\\\\\\\\Tw IN l ENTO P Char/es F Freda Kmf 6. Howard I :Qf-r-o /\/E vs Patented June 1, 1937 UNITED STATES PATET QFFECE HYDRAULIC GUN Charles F. Frede and Karl S. Howard, St. Louis,

MO., assignors to Commonwealth Steel Company, Granite City, 111., a corporation of New Jersey Application April 18, 1928, Serial No. 271,094

19 Claims. (Cl. 29957) Our invention relates to hydraulic guns and either direction to raise or lower barrel in the has been developed for use particularly in conframe. This rotation of pinion 'l is accomnection with the cleaning of cores and mold sand plished by means of a motor 8 which maybe from large castings. It is to be understood that mounted on an extension of frame I but is shown 5 our invention is not limited to such use but may as mounted on the travelling carriage 2 to which be used in fire fighting equipment, in hydraulic frame l is attached. Motor 8 is operatively mining, and in various other industrial applicaconnected to the shaft 9 of pinion 1 by means tions wherever it is desired to direct a stream of a gear reducer l0. of fluid at any desired angle from the discharge The upper end of tube 5 carries a sleeve 5a 10 end of a nozzle and, particularly, when it is dewhich forms a bearing for an innerbarrel H 10 sired to control such a stream from a remote which extends beyond both ends of barrel 5 and po tat its upper end carries a bushing 12 provided In our copending application Serial No. 306,347 with bearing 13 for journalling the upper end filed September 17, 1928 we illustrate and deof an axially disposed shaft 14. Bushing I2 is 15 scribe the application of our gun to the partickeyed to a barrel head l5 which carries aworm 15 ular field referred to in connection with the wheel it which is driven by a worm, not shown, cleaning of castings. In this particular applimounted on a shaft connected to motor I! which cation it is essential that a heavy volume of fluid is carried by a bracket l8 on sleeve 5a. The under high pressure be forced into every recess worm wheel l6 and its worm are enclosed in a of a complicated casting having pockets facsuitable housing I9. ing in all directions and it is necessary that this The upper end of head l5 carries a'frame 22 operation may be controlled by a person located in which is mounted a motor 23 and a speed reat a remote point where he can be protected ducer 24 by means of which shaft I4 may be from the stream of water and from the flying rotated in either direction.

25 sand, core rods, and other debris washed out by It will be understood that motors 8, l1, and the gun. 23, will be provided with individual cables lead- In the accompanying drawings which illustrate ing to a remote control point where suitable a selected embodiment of our inventionswitches and other electrical apparatus will be Figure 1 is a front elevation of our device approvided for selectively operating the motorsas plied to a travelling carriage. desired. 30 Figure 2 is a vertical section taken on the line The weight of barrel II, bushing 12, head l5 22 of Figure l. and the parts carried thereby, is rotatably Figure 3 is an enlarged detail of the nozzle mounted on sleeve 5a by an anti-friction device shown in Figure 2. 20 through bracket 2| on the upper end of Figure 4 is a horizontal section taken on line sleeve 5a. 35 44 of Figure 2 and showing the discharge tip The lower end of barrel ll mounts a flange of the nozzle rotated 90 in a vertical plane from 25 which is provided with a bearing for the lower the position shown in Figures 2 and 3. end of shaft l4 and also mounts a nozzle casing Figure 5 is a top view of our gun mounted on 26 forming an extension of the barrel. An L- 40 a suitable carriage. shaped nozzle 21 is journalled in one side of cas- 40 Figure 6 is a section corresponding to Figure ing 26, by means of roller bearings 28, and in- 3 but illustrates a modified form of nozzle. eludes an integral spider 3| and central bearing Figure 7 is a similar section illustrating anelement 32 which is journalled in the opposite other modification. side of casinglZB by means of a roller bearing Figures 8 and 9 are sections taken approxi- 29. The inner end of nozzle 2'! is geared to shaft 45 mately on lines 83 and 9-4-3 of Figure '7. l4 by means of miter gears 30. The outer end The body or frame of the gun is indicated at of nozzle 21 is provided with a renewable dis- I and is shown as being mounted upon a travcharge tip 33. 1 elling carriage 2 whereby the gun may be shift- The lower portion of tube 5 carries a bumper ed along a track 3. Frame l is provided with 34 adapted to abut against the lower face 35 50 bearings 4 in which an outer tube or barrel 5 of the frame I to arrest the upward movement is slidably mounted. Tube or barrel 5 is proof the barrels, and the downward movement of vided with a rack 6 on one side and a pinion I the tube and barrel is similarly arrested by enmounted. on a shaft 9, journalled in frame I, gagement of the lower end of sleeve 5a with the meshes with the rack 6 and may be rotated in upper end of frame I. I 5

Water is admitted to the gun through inlet connection 36 which projects outwardly from sleeve 5a. The water then passes from sleeve 5a (Figure 2) through the perforations 31 in upper end of barrel H and out of the nozzle at the lower end of the gun. Annular gaskets 38 of cup shaped cross section are provided between sleeve 5a and barrel H to prevent leakage through the joints of these elements. Leakage through the inner upper end of barrel H is prevented by the use of a stufiing box 39 in upper municating therewith and extending beyond the ends thereof, a motor assembled with said tube end of bushing l2.

Operation-Frame I, motor 8 and its speed reducer are stationary on carriage 2. Tube 5 and all of the remaining structure reciprocate vertically in frame I. Barrel H and all of the parts carried thereby, including the nozzle casing 26 and the nozzle 21, may be rotated about the axis of tube 5 by means of the motor I! mounted on the tube. Shaft l4 maybe rotated on the same axis by means of the motor 23 and rotation of shaft l4 will rotate nozzle 21 about the horizontal axis of its inlet leg. Hence, it will be seen that nozzle 2'! may be raised and lowered bodily, may be rotated in vertical planes, parallel with the axis of the tube and barrel, to various positions, one of which is indicated in Figure 4, and, by rotation of the inner barrel, may be rotated in a horizontal plane, irrespective of the angle of inclination of the discharge leg. Hence fluid may be discharged from the nozzle in any direction.

In'Figure 6, we illustrate a modified construction in which the main portion of the discharge nozzle .40 extends laterally from the lower end of the inner barrel and is provided withfla removable tip projecting axially of the main portion of the nozzle. This tip may be removed and an angular one substituted therefor. When an angular tip is placed upon the end of portion 40 the nozzle may be rotated to function the same as the nozzle 21 in the barrel 26 of the structure shown in Figure 2. At times it may be unnecessary to utilize the extreme range of direction of discharge and it may be desirable to obtain the greater force of a stream that may be had through a straight nozzle. This form of our invention will make it possible to use either arrangement according to the most desirable function.

In Figures 7, 8, and 9, we illustrate another modification in which the lower end of the barrel 4| mounts a member 42 for supporting the nozzle 43, the bearings 44 for the latter forming a socket joint for receiving the ball-shaped portion 45 of the nozzle. This provides for universal movement of the nozzle. A gear 46 is journalled on the side of member 42 and is driven by a pinion 41 on shaft 48. 'A crank 49 is connected to pinion 46 and the inner end of nozzle 43 and provides for directing the outer end of the nozzle upwardly or downwardly as may be desired.

This arrangement avoids the use of a nozzle with a right angle bend and enables the opera-' tor to direct a stream in almost as many directions as provided by the preferred structure.

Various other changes in the structure may be made without departing from the spirit of our invention, and we contemplate the exclusive use of such modifications as are included in the scope of our claims.

, We claim:

1. In a hydraulic gun, a frame, an outer tube, means on said frame for reciprocating said tube lengthwise, an inner barrel within sa tu nd communicating therewith, means on said tube for rotating said barrel, a discharge nozzle with angularly disposed legs with its inlet leg extending transversely of the axis of said barrel and journalled therein, means in said barrel for rotating said inlet leg, and a fluid inlet to said tube.

2. In a hydraulic gun, a frame, an outer tube slidable in said frame, a rack extending longitudinally of said tube, a motor and pinion assembled with said frame and driving said rack, an inner barrel rotatable in said tube and comand geared to said barrel for rotating the latter in said tube, a discharge nozzle with angularly disposed legs, with its inlet leg extending transversely of said barrel and rotatable therein, and a motor assembled with said barrel and operatively connected to said nozzle to rotate the latter in said barrel, and a fluid inlet to said tube.

3. In a hydraulic gun, a frame, a barrel rotatably mounted thereon to reciprocate axially and having inlet and outlet openings, a nozzle having a leg disposed at an angle to said barrel and journaled in said outlet opening and having a leg disposed at an angle to said first-mentioned leg, mechanism on said frame for reciprocating said barrel, and mechanism on said barrel for rotating said nozzle, each of said mechanisms being remotely controlled and operating independently of the other. I

4. In a hydraulic gun, a frame, a tube mounted thereon to reciprocate axially, a barrel rotatably mounted in said tube and projecting at each end beyond said tube, a fluid inletin said barrel adjacent one end, a nozzle having a leg disposed at an angle to said barrel and journaled in the same at the other end and having a leg disposed at an angle to said first-mentioned leg, a bracket on said barrel at the inlet end, a motor on said bracket, and mechanism inside said barrel for rotating said nozzle from said motor independently of the movement of said tube and said barrel. 1 5. In a hydraulic gun, a frame, a tube mounted on said frame to reciprocate axially, a barrel rotatably mounted in said tube and having fluid inlet and outlet openings, a nozzle having a leg disposed at an angle to said barrel and journaled in. said outlet opening and having a leg disposed at an angle to said first-mentioned leg, means on said frame for reciprocating said tube, means on said tube for rotating said barrel, and means on said barrel for rotating said nozzle, each of the said means operating independently of the others and being remotely controlled.

6. A hydraulic machine comprising a pipe, means for admitting water into said pipe, a nozzle for conducting water from said pipe, means for supporting said nozzle for turning movements about an axis at an angle with respect to the axis of said pipe, a shaft supported in said pipe, mechanism for rotating said shaft, gearing for rotating said nozzle by said shaft, and mechanism for rotating said pipe irrespective of whether said shaft is being rotated or not.

7. A hydraulic machine comprising a longitudinally movable support, a water pipe mounted in said support, means for admitting water to said pipe, an angular nozzle'supported for turning movements in connection with said pipe-gearing enclosed in said pipe for rotating said nozzle, mechanism supported by said support for operating said gearing, and mechanism for moving said support longitudinally.

3.- A hydraulic machine comprising a longitudinally movable support, a water pipe mounted in said support, means for admitting Water to said pipe, an angular nozzle supported for turning movements in connection with said pipe, gearing enclosed in said pipe for rotating said nozzle, mechanism supported by said support for operating said gearing, mechanism for moving said support longitudinally, and mechanism for rotating said pipe.

9. A hydraulic machine comprising a support, gearing for moving said support longitudinally, mechanism for operating said gearing, a water pipe mounted in and operated by said support, an angular discharge nozzle in connection with said pipe, a shaft extending axially in said pipe, gearing for rotating said nozzle by said shaft, and a motor for rotating said shaft.

10. A hydraulic machine comprising a tubular member, mechanism for moving said member longitudinally in opposite directions, a water pipe mounted for rotation in said tubular member, mechanism for rotating said water pipe about its axis, a shaft extending longitudinally through said tubular member, mechanism for rotating said shaft, an angular nozzle opening laterally from said water pipe, and mechanism for rotating said nozzle by said shaft.

11.. A hydraulic machine comprising a support, mechanism for moving said support longitudinally in opposite directions, a rotary pipe mounted in said support, mechanism for rotating said pipe about its axis whether said pipe be in longitudinal motion or stationary, an angular nozzle opening laterally from said pipe, a shaft enclosed in said pipe, mechanism for rotating said shaft, and mechanism for rotating said nozzle by said shaft.

12. A hydraulic machine comprising a longitudinally movable support, means for supporting and guiding said support in its longitudinal movements, a rack in connection with said support, a gear meshing with said rack, a motor for rotating said gear, a water pipe supported for rotation in said support, mechanism for rotating said Water pipe about its axis, an angular discharge nozzle opening from said pipe, a shaft enclosed in said pipe, a motor, mechanism for rotating said shaft by said motor, and gearing for rotating said nozzle by said shaft.

13. A hydraulic machine comprising a longitudinally movable support, means for supporting and guiding said support in its longitudinal movements, a pipe mounted for rotation in said support and for longitudinal movements thereby, mechanism for moving said support longitudinal- 1y, a motor supported by and movable with said support, and gearing operated by said motor for rotating said pipe.

14. A hydraulic machine comprising a longitudinally movable support, mechanism for supporting and guiding said support in its longitudinal movements, a pipe supported for rotation in and longitudinal movements by said support,

an angular nozzle in connection with said pipe, gearing enclosed in said pipe for rotating said nozzle, and a motor supported by and movable with said support for rotating said nozzle,

15. A hydraulic machine comprising a member mounted for longitudinal sliding movements in opposite directions, a pipe supported by said member, an angular nozzle swiveled at one end of said pipe, gearing in said pipe for rotating said nozzle, and a motor supported by and movable with said member for operating said gearing.

16. A hydraulic machine comprising a member mounted for longitudinal sliding movements in opposite directions, a pipe supported by said member, an angular nozzle swiveled at one end of said pipe, gearing in said pipe for rotating said nozzle, a motor supported by and movable with said member for operating said gearing, and mechanism for rotating said pipe irrespective of whether said nozzle is in rotation or not.

17. A hydraulic machine comprising a support, a member mounted for longitudinal sliding movements in opposite directions in said support, mechanism mounted on said support for moving said member longitudinally in opposite directions in said support, a pipe mounted in and moved longitudinally by said support, an angular nozzle swiveled to said pipe, a shaft extending axially through said pipe, a motor mounted on said member for rotating said shaft, gearing in said pipe for rotating said nozzle by said shaft, and means for admitting water to said pipe between said motor and said nozzle.

18. A hydraulic machine comprising a support,

a member mounted for longitudinal sliding movements in opposite directions in said support, mechanism mounted on said support for moving said member longitudinally in opposite directions in said support, a pipe mounted in and moved longitudinally by said support, an angular nozzle swiveled to said pipe, a shaft extending axially through said pipe, a motor mounted on said member for rotating said shaft, gearing in said pipe for rotating said nozzle by said shaft, means for admitting water to said pipe between said motor and said nozzle, and mechanism for rotating said pipe in any of the longitudinally positions thereof and irrespective of Whether said nozzle is in rotation or not.

19. A hydraulic machine comprising a support, a member mounted for longitudinal sliding movements in opposite directions in said support, mechanism for moving said member longitudinally in opposite directions in said support, a pipe mounted for rotation in said member, mechanism supported by said member for rotating said pipe, an angular nozzle pivoted to said pipe below said member, and means mounted on said member beyond the opposite end of said pipe from said nozzle for rotating said nozzle.

CHARLES F. FREDE. KARL S. HOWARD.

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