US2618508A

US2618508A - Spraying machine

Info

Publication number: US2618508A
Application number: US771970A
Authority: US
Inventors: George W Daugherty
Original assignee: FMC Corp
Current assignee: FMC Corp
Priority date: 1947-09-03
Filing date: 1947-09-03
Publication date: 1952-11-18
Anticipated expiration: 1969-11-18

Description

Nov. 18, 1952 G. w. DAUGHERTY SPRAYING MACHINE 5 Sheets-Sheet 1 Filed Sept. 3, 194'? 7 R 4; l m NJ R WM m 6 A Y B Q Nov. 18, 1952 G. w. DAUGHERTY SPRAYING MACHINE 3 Sheets-Sheet 2 Filed Sept. 3, 1947 m n Ta N m W n 6 A SPRAYING MACHINE 3 Sheets-Sheet 3 NQ 8 E Q Q N G. W DAUGHERTY Nov. 18, 1952 Filed Sept. 5, 1947 INVENTOR 6. 14 4 9437 ATTORNEY Patented Nov. 18, 1952 UNITED STATES PATENT, OFFICE SPRAYING MACHINE George W. Daugherty, Orlando, Fla., assignor to Food Machinery and Chemical Corporation, San Jose, Calif., a corporation of Delaware Application September 3, 1947, Serial N 0. 771,970

4 Claims. 1

This invention relates to a spraying machine of the general type set forth in my earlier application, Serial No. 639,949 filed January 9, 1946, now Patent No. 2,476,960 dated July 26, 1949. In my earlier application I show and claim a novel type of air blast creating means functioning in combination with novel air blast guide means and means for feeding spraying and dusting material to the said air blast to be picked up and carried toward foliage.

The invention of the present application relates more particularly tomeans whereby the invention of my earlier application may be best utilized in a spraying machine. Thus, it is the object of this invention to contribute to the art effective means for utilizing in a spraying machine the air blast developing and guide means of my earlier invention.

As a feature of my invention whereby the objects thereof are attained, I utilize the spray carrying tank of a sprayingmachine as a part of the means for supporting the air blast creating means in proper operating position. As still a further feature of the invention, the tank is utilized also for supporting in proper operating position the air blast guide means or air deflecting means.

As a still further feature of the invention, the tank containing the spraying material of my machine is utilized to balance the spraying machine and is particularly equipped to allow the passage of shaft means t-herethrough for actuating the air blast creating means.

A still further feature of my invention resides in the particular formation of the chassis of the machine whereby to protect the air blast creating means during the movement of the machine.

through an orange grove, orchard, or the like.

I have thus outlined rather broadly the more importantfeatures of my invention in order that the detailed description thereof that follows may be better understood, and in order that my contribution to the art may be better appreciated. There are, of course, additional features'of my invention that will be described hereinafter and which will form the subject of the claims appended hereto. Those skilled in the art will appreciate that the conception on which my disclosure is based may readily be utilized as a basis for the designing of other structures for carrying out the several purposes of my invention. It is important, therefore, that the claims to be granted me shall be of sufficient breadth to prevent the appropriation of my invention by those skilled in the art.

Referring now to the drawings, Fig. 1 is a vertical elevation of a spraying machine embodying my invention. Fig. 2 is an end view of the machine of Fig. 1. Fig. 3 is a section taken along lines 33 of Fig. 2. Fig. 4 is an enlarged view of part of the structure shown in Fig. 3.

Referring now more particularly to the drawbest shown in Fig. 3. The left hand end of the tank I4 is concave as best seen in Fig. 1 and is designated by reference numeral [6.

At the forward end of the machine there mounted an internal combustion engine I! equipped with the usual accessories and adapted to drive a shaft 18 through means of a flexible coupling I9. The engine I! is also adapted to drive a pump whereby to supply liquid spraying material to a series of spray carrying pipes hereinafter to be described. The means whereby the pump is operated, and the means whereby the shaft I8 is actuated, are well shown in earlier patents and patent applications filed by me, and are not herein described in detail for that reason.

The tank M has extending centrally therethrough a sleeve 20 welded at its ends to the ends 15 and I6 of the tank. In Fig. 3 there is shown at 2| the weld between the right hand end of the sleeve 20 and the right hand end of the tank 15'. The sleeve 26 will be referred to as the passage sleevesince it forms a passage for the shaft l8 so that the said shaft may extend through the tank I4 from the internal combustion engine I! to the propeller of the air blast creating means hereinafter to be described.

Welded to the end I5 of the tank 14 is a sleeve 22 that I term a support sleeve. This support sleeve 22 has welded thereto a circular angular structural member 23 to which is bolted by :a.

series of bolts 24, a somewhat similar circular angular structural member 25. Structural member 25 is secured to the cylindrical shell 26 of the air blast creating assembly. From the discussion presented, it will readily be seen that in'this way the support sleeve 22 may be considered as at least partially mounting and supporting the cylindrical shell 26 in its proper operating. position.

Extending from the cylindrical shell 25 is a series of angularly spaced guide plates 21 welded at one end to the cylindrical shell 26 and at the other end to an outer shell 23 that forms the outer surface of what I term an air tunnel. This air tunnel may be of any length, but I prefer a length in relation to the other parts such as indicated in the drawings. The right hand end of the outer shell 28 is suitably reinforced by circularly extending angular structural members 29 and these members 29 are in turn secured to a support strut assembly 30 extending upwardly from a portion of the chassis II). In this way the extreme right hand end of the air blast creating assembly is well supported from the chassis l and reinforced thereby. Additional strut means extending between the chassis In and the outer shell 28 are shown at 38a in Fig. 2.

The cylindrical shell 25 has welded therein, as is probably best set forth in my earlier application, a shelf 3!, and this shelf 3| supports

bearings

32 and 33 for a shaft 34, the shaft 34 being suitably coupled at 350. to the main drive shaft 13. At its right hand end the shaft 34 has keyed thereto a hub 35 of a propeller 36 equipped with blades 31. The extreme right hand end of the shaft 34 is considerably smaller in size than the remainder thereof and mounts thereon a spacer sleeve 38 whereby to support in position the rounded air guide surface 39 rotatable with the propeller 36 and held on shaft 34 by a nut 34a. It will now be appreciated that rotation of the shaft [8 and the shaft 34 will rotate the propeller 35 so that the blades 31 will effect the movement of a blast of air between the cylindrical shell 26 and the outer shell 28, this blast of air flowing toward the end I of the tank 54. For guiding the in-take flow of the blast of air, there is secured to the outer shell 28 through its reinforcing structural members 29, a sheet metal guide 49 as is very well shown in Fig. 3. There is also secured in position a protective screen 4| held in place by a latch 4 la.

The end surface l5 of the tank M has welded thereto as best shown in Figs. 3 and 4 a series of brackets 42 spaced circumferentially thereabout. Each of these brackets 42 in turn has bolted thereto through a series of bolts 43, the flange 44 of a spinning that forms the part 45. Part 45 is a deflector for the air blast generated by the blades 31 of propeller 36 and is formed as well illustrated in the drawings to curve inwardly and radially from the brackets 42 toward the cylindrical shell 26. In effect, the spinning forming the deflector 45 is, when assembled, substantially a continuation of the cylindrical shell 25. 0bviously, the deflector 45 will tend to move the air radially outwardly of the machine in a manner which is well emphasized in my earlier application.

A similar spinning 4G is assembled to the outer shell 28 to form substantially a continuation of the said outer shell. As seen, this spinning is secured to the left hand end of the outer shell 28 through suitable bolts 41 and angular structural reinforcing member 48.

Between the

deflectors

45 and 46 there is an intermediate deflector 49. This intermediate deflector is formed from two sheet metal spinnings assembled at 50 and at 5!, the two spinnings forming in eifect a single hollow deflector of proper air guiding design. Deflector 49 is secured to the

deflectors

45, 46 by a series of assembly rods 52 and spacer sleeves 53, the said rods 52 being threaded at their ends for coaction with fastening nuts 54, all as well shown in Fig. 3.

It is now obvious that the air blast will flow between the

deflectors

45, 46, and that the intermediate deflector 49 will be effective in preventing constriction of the air flow. It will also be noted now that the entire deflector system and air tunnel assembly is so positioned in the machine as to be radially inwardly of the outer periphery of the tank M. This is extremely important because it makes it possible to move the machine effectively through an orchard, grove or the like, without damage to the trees or the machine.

It is further effective in that it makes it possible to mount in operating position and without danger from injury thereto, the several spray feeding pipes designated by reference numeral 55. These pipes 55 are secured to main spray feeding pipes 56 extending substantially circularly about the end of the tank I4. Actually, the pipes 56 may be considered as forming a manifold into which the spraying material is first fed from the tank I4 to be dispersed by the several pipes 55. By means of clips 51 secured to the manifolds 56, the said manifolds may be bolted to the brackets 42 that act to support the deflector 45. It will now be seen that not only does the entire air blast creating assembly lie inwardly of the outer periphery of the tank l4, but that the spray feeding means also lie inwardly or substantially at the periphery of the tank I 4. Therefore, a streamlined effect is created that is extremely helpful in preventing damage to the machine as it moves through a grove or the like.

The chassis I0 has at its rear a protective pan 60 formed with a generally flat surface 6| at the left end thereof, this surface tapering upwardly at its right end to form a camming surface 62. When moving through a grove, orchard, or the like, should the surface 5| of the pan 60 encounter a hillock, the entire machine will be lifted off one or both its wheels l2. Were the pan 60 to terminate at say the point 63 shown in Fig. 3, the entire machine would then be allowed to drop suddenly against the ground, or until the wheels l2 encountered the ground. This sharp drop might very well injure the machine. Through the utilization of the camming surface 62, the machine is eased downwardly off the hillock and injury to the machine is consequently avoided. This is an extremely important improvement in a machine of the particular class. For further streamlining of the machine, there 18 secured to the upper portion of the outer shell 28 a sheet metal member 65 the function of WhlCh will be apparent. I believe that with this explanation of my invention, the structural features thereof, and the apparently simple and effective means I have conceived for utilizing the tank of my machine as an inherent structural portion thereof, will now be apparent to those skillgd in the art. I believe also that the remainmg ea ures of m inven i understood. 5' t on W111 now be clearly I now claim:

1. In a spraying machine of the clas s described, a cylindrical tank, a passage sleeve in the longitudinal axis of said tank and welded to the ends a cylindrical shell of substantially the same diameter as said hub and support sleeve posi- 5 tioned in said tunnel between said support sleeve and hub, and means for feeding spraying material from said tank to the blast of air developed by said propeller and flowing initially through said tunnel.

2. In a spraying machine of the class described, a cylindrical tank, a passage sleeve in the longitudinal axis of said tank to form a through central passage in said tank, a support sleeve having one end surface thereof secured directly to one end of the tank concentrically with said passage sleeve, an air tunnel secured with its longitudinal axis in alignment with said passage and support sleeves, a propeller mounted for rotation in said tunnel in said longitudinal axis and having a central hub portion, a cylindrical shell substantially the same in diameter as said hub and support sleeve positioned with one end at said hub and its other end at the end of the support sleeve, a curved ring-like deflector for the blast of air generated by said propeller formed as an extension of said cylindrical shell and curving outwardly from the end of said cylindrical shell toward the outer periphery of said tank with the support sleeve in support relation thereto, a shaft means extending through said passage sleeve toward said propeller for rotating said propeller, and means for feeding spraying material from said tank to said deflector directed air blast.

3. In a spraying machine of the class described, a cylindrical tank, a support sleeve having one end surface thereof secured directly to one end of the tank, an air tunnel positioned with its longitudinal axis in alignment with said support sleeve and secured to said support sleeve, a propeller mounted for rotation in said tunnel in said longitudinal axis, a curved ring-like deflector for the blast of air generated by said propeller extending between said propeller and tank and curving outwardly from said propeller toward the outer periphery of said tank with the support sleeve concentrically inwardly of said deflector and in support relation thereto, and means for feeding spraying material from said tank to said deflector directed air blast.

4. In a spraying machine of the class described, a cylindrical tank, a passage sleeve in the longitudinal axis of said tank to form a through passage in said tank, a support sleeve secured directly and bodily to one end of the tank concentrically with said passage sleeve, an air tunnel secured with its longitudinal axis in alignment with said passage and support sleeves, a propeller mounted for rotation in said tunnel in said longitudinal axis and having a central hub portion, a curved ring-like deflector extending inwardly radially of said tank and laterally toward that end of said support sleeve displaced from said tank and then to a position juxtaposed to the hub of said propeller to form a deflector for the b ast of air generated by said propeller, a shaft means extending through said passage and support sleeves toward said propeller for rotating said propeller, and means for feeding spraying material from said tank to said deflector directed air blast.

GEORGE W. DAUGHERTY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,725,085 Johnson Aug. 20, 1929 2,144,426 Klein Jan. 17, 1939 2,238,120 Launder Apr. 15, 1941 2,288,307 Welch et al. June 30, 1942 2,331,107 Daugherty Oct. 5, 1943 2,374,955 Raper May 1, 1945 2,398,380 Kisling Apr. 16, 1946 2,429,374 Shade Oct. 21, 1947 2,476,960 Daugherty July 26, 1949 2,535,565 Cohn Dec. 26, 1950