US1498608A - Spraying machine - Google Patents

Description

June 24 L. BISHOP SPRAYING MACHINE Filed Jan. 5. 1924 Patented June 24, 1924.

LEWIS BISHOP, OF ARCADIA, IELOIEtIDA.

SPRAYING- MACHINE.

Application filed January3, 1924. Serial No. 684,219.

To all whom it may concern:

Be it known that I, Lnwrs Brsnor, a. citizen of the United States, residing at Arcadia, in the county of De Soto and State of Florida, have invented a new and useful Spraying Machine, of which the following is a specification. v

This invention relates to a machine for spraying vegetation and for similar pur poses, one of the objects of the invention being to provide a wheel'supported structure which, when moved from place to place, will set up a pressure upon the liquid contents of the structure so that the same will be expelled forcibly from hose connected thereto.

A further object isto provide a device of this character utilizing a tank in which liquid is placed under pressure by a. plunger, means being employed for automatically returning the plunger to initial position.

Another object is to provide means operat ed by the movement of the structure from place to place for agitating the contents of the container.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit ofthe invention. In the accompanying drawings the preferred form of the invention has been'shown.

In said drawings Figure 1 is a vertical longitudinal section through the apparatus.

Fig. 2 is an end elevation thereof.

Fig. 3 is a side elevation of the clutch.

of the threaded stem.

Fig. 4 is a plan view'thereof.

Fig. 5 is a detail view. of the keeper of the controllingl'ever, the lever being shown in section. I

Referring to the figures by characters of reference 1 designates a tank, preferably cylindrical, having supporting wheels 2 carrying axles '3 and 1 011 which the tank is mounted. The axle 3 is adapted to rotate and has a gear 5 thereon rotatable'with a sprocket 6.. A longitudinal shaft 7v is supported under the tank. and has a gear 8 meshing with the gear 5, there being a sprocket 9 at the forward end of the shaft. This sprocket transmits motion through a chain 10 to a sprocket 11 secured to a shaft 12 journaled within one end of thetank 1. This shaft has an agitator 13' connected thereto and within the tank so that when it is rotated the liquidcontentsof the tank will be kept thoroughly mixed. I

Mounted to slide within the tank 1 is a follower or piston 14: the active face of which is preferably concaved as shown at 15. Extending from the center of this concaved face is a rod 16 projecting through one head of the tank 1 and into an elongated housing 17. A spring '18 is located within this housing and bears against a head or enlargement 19 on one endof the rod 16. Thus when the piston or follower is moved in one direction spring 18 will'be placed under compression and when the said piston is released the springwfll return it to normal, position. A port 2Ois provide'd in the piston and is normally closed by a spring controlled release valve 21. This valve is adapted to open when the piston is moved back to normal position but will remain closed while the piston is. being used to compress the liquid in the path: thereof.

Secured to the piston and extending loosely through that head thereof remote from the housing 17 is a threaded stem 22.

A worm gear 23 extends loosely around and out of engagement with this stem and is journaled on the rear head of the tank, this gear being constantly in mesh with the'worm 24 carried bya shaft 25. 'A gear 26 is secured to this shaft and receives motion through a gear 27 from a shaft 28. A sprocket 29 is nounted'on this shaft and is driven by a chain 30 engaging the sprocket 6. A sleeve 31 is loosely mounted on the threaded stem 22 and pivotally connected to one end portion of this sleeve are opposed members of a sectional nut '32 normally spaced apart by springs'33. The free ends of the sections of the nut are tapered as shown at 34 andare adapted to be directed into the flared end .35 of the hubof gear'23. A lever 36 is pivotally connected to a bracket 37 on one head of the tank and is movable against one end of thesleeve 31 to shift it longitudinally and force the sections of the nut, 32 into theflared end 35 of gear 23. Vhen the nut sections arethus positioned the lever 36 is in engagement with a spring 7 is then closed. Piston 14: is normally posithe parts.

tioned close to that head of the tank 1 remote from the agitator 13. While lever 36 is disengaged from keeper 38 the sections of the nut 32 are spaced apart so as to be disengaged from the threaded stem 22. Consequently as the machine moves forwardly the gear 23 will rotate without actuating the piston. By swinging lever 36 into engagement with the keeper 38, however, the sections of the nut 32 will be wedged into the flared portion 35 of gear 23 and thus be contracted onto the threaded stem and bind upon the hub portion of the gear 23. Thus as the machine moves forward the rotating gear 23 will set up a corresponding rotation of the nut 32 and sleeve 31 with the result that the stem 23 and the piston 14 will be fed forwardly, thereby placing under compression the liquid located in the path of the piston. As the liquid is withdrawn from the tank through the pipe 39 and the hose 40 the agitator 13 is operated as will be obvious, keeping the ingredients thoroughly mixed. When the piston reaches the limit of'its forward movement lever 36 can be released, thereby allowing the spring 18, which has been placed under compression, to return the piston to its normal position, it being understood that during this movement the members of the nut 32 will move apart out of engagement with the threaded stem. During this return movement of the piston 14 any air contained in the path thereof will be free to escape past the valve 21 which will open to release the same.

It is to be understood of course that various means other than those disclosed may be employed for feeding the piston within the tank.

It is also to be understood that if desired the inter-engaging faces of the nut sections 32 and the flared portion 35 can be toothed to insure transmission of motion between This has been indicated clearly at 34:.

It is to be understood that this apparatus need not be of portable construction but can be used for any suitable stationary work and can be driven by any desired power.

What is claimed is 1. The combination with a wheel supported tank, of a piston mounted for sliding movement therein, means for automatically returning the piston to its initial position when released from its propelling means, a threaded stem slidable with the piston, a driving mechanism operated by the supporting wheels, and means for coupling the driving mechanism to and uncoupling it from the threaded stem.

2. The combination with a tank having an outlet and supporting wheels therefor, of a piston within the tank, a threaded stem pro- 7 jecting therefrom, mechanism actuated by the supporting wheels, means for coupling said mechanism to and uncoupling it from the stem, and resilient means for returning the piston to normal position when uncoupled from the driving mechanism.

3. The combination with a tank and supporting wheels therefor, of a piston mounted for movement within the tank, a threaded stem projecting therefrom, a gear loosely mounted on the stem, means for driving the gear from the supporting wheels, a split nut normally disengaged from the stem, means for shifting the nut into engagement with the gear and stem for rotation by the gears to shift the stem and piston, and yielding means for returning the piston to its normal position when the nut is disengaged from the stem.

4. The combination with a tank and sup porting wheels therefor, said tank having an outlet, of a piston mounted for movement within the tank, a gear actuated by the supporting wheels, a threaded stem movable with the piston and out of engagement with the gear, a split nut normally disengaged from the stem, means for shifting the nut relative to the stem, cooperating means upon the gear and nut for placing said nut in en gagement'with the stem and for coupling the nut to the gear.

5. The combination with a tank and sup porting wheels therefor, said tank having an outlet, of a piston'mounted for movement within the tank, a gear actuated by the supporting Wheels, a threaded stem movable with the piston and out of engagement with the gear, a split nut normally disengaged from the stem, means for shifting the nut relative to the stem, cooperating means upon the gear and nut for placing said nut in engagement with the stem and for cou pling the nut to the gear, a rod extending from and movable with the piston, and a spring engaging the rod for returning the piston to normal position when the nut is disengaged from the stem.

6. The combination with a'wheel supported tank, a piston thereon, and a threaded stem projecting through the piston, of an agitator within the tank, means operated by the movement of the supporting wheels for actuating the agitator, a gear mounted for rotation by the movement of the tank, a split nut normally disengaged from the gear and stem, means for shifting said nut into engagement with the gear and stem, for rotation with the gear to actuate the stem.

7. The combination with a Wheel supported tank, a piston thereon, and a threaded stem projecting through the piston, of an agitator within the tank, means operated by the movement of the supporting wheels for actuating the agitator, a gear mounted for rotation by the movement of the tank, a split nut normally disengaged from the gear and stem, means for shifting said nut into engagement With the gear and stem for rotation With the gear to actuate the stem, a

relief valve Within the piston, and means 15 as my own, I have hereto affixed my signa- 20 ture in the presence of two Witnesses.

LEWIS BISHOP.

Witnesses:

HENRY W. RICE, LEON RICE.

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