US773852A - Powder and liquid distributing device. - Google Patents

Description

No. 778,852. PATENTED NOV. 1, 1904. H. CUTTING.

POWDER AND LIQUID DISTRIBUTING DEVICE.

APPLICATION FILED SEPT. 14. 1903.

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POWDER AND LIQUID DISTRIBUTING DEVICE.

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w/iiiibrnegs UNITED STATES Patented November 1, 1904.

HENRY CUTTING, OF BUFFALO, NEW YORK.

POWDER AND LIQUID DISTRIBUTING DEVICE.

SPECIFICATION forming part of Letters Patent No. 773,852, dated November 1, 1904.

Application filed September 14, 1903. Serial No. 173,021. (No model.)

To all w/wnt it may concern.-

Be it known that I, HENRY CUTTING, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented new and useful Improvements in Powder and Liquid Distributing Devices, of which the following is a specification.

This invention relates to a device or machine for distributing powders and liquids, and is more especially intended for blowing powdered and liquid insecticides into cracks, crevices, and other inaccessible places in buildings, vessels, cars, &c., to exterminate insects and vermin.

The object of the invention is to provide an efficient device of the character described of simple and practical construction whereby either powdered or liquid material, or both, can be thoroughly and evenly distributed or blown in a continuous steady stream, spray, or current and the force of the flow and quantity of material distributed regulated at the will of the operator.

In the accompanying drawings, consisting of two sheets, Figure 1 is an elevation of a powder and liquid distributing device embodying the invention. Fig. 2 is a top plan view thereof. Fig. 3 is a transverse vertical sectional elevation, on an enlarged scale, of the powder-receptacle. Fig. 4 is a fragmentary sectional elevation of the upper portion of the powder receptacle and agitator in line 4 4,

Fig. 3. Fig. 5 is a horizontal section of the powder receptacle and agitator in line 5 5, Fig. 8. Fig. 61s a transverse vertical section,

on an enlarged scale, of the liquid-receptacle.

Like letters of reference refer to like parts in the several figures.

A A represent two upright air pump or compressor cylinders, which are mounted on a suitable base or frame 6, preferably at opposite sides of an upright compressed-air reservoir or container C, which is also mounted on the base or frame 6. The lower ends of the air-compressor cylinders are connected with the compressed-air reservoir and compress the air therein by pipes cZ. Suitable check-valves (not shown) are provided to retain the pressure in the reservoir.

E represents reciprocating pistons working in the compressor-cylinders and connected by piston-rods e to the opposite arms of a pumplever F, fulcru med at its mid-length on a pivot f, supported by suitable bearing-lugs rising from the top of the air-reservoir. The pumplever is provided at its opposite ends with suitable operating-handles f.

G and G represent, respectively, powder and liquid receptacles or tanks mounted on the base or frame 6 for containing the powder and liquid to be distributed. The powderreceptacle G consists of a powder supply chamber or hopper g, which is preferably cylindrical and provided with an inverted conical or tapering bottom, and a powder discharge chamber or throat g, arranged beneath the contracted lower end of the supplychamber and communicating therewith. The discharge-chamber constitutes a support for the supply chamber or hopper. The supplyehamber is provided with a removable cover or closure 9 of any suitable form, whereby the powdered material may be introduced into the supply-chamber.

H represents an air pipe or conduit which connects at its upper end with the air-reservoir through a three-way coupling 7b and is provided with a suitable controlling-valve h. The lower end of the air-supply pipe connects with an injector nozzle or pipe J, the contracted discharge end of which extends into the powder discharge-chamber. The injector nozzle or pipe J is externally threaded and screwed into a screw-threaded hole in the wall of the discharge-chamber or is connected therewith in any other suitable manner.

K represents a powder discharge pipe or tube, which is of larger diameter than the discharge end of the injector-nozzle and extends into the powder discharge-chamber with its inner open end surrounding the injector-nozzle. (See Fig. 3.) The powder dischargepipe is free to slide in a hole in the wall of the powder dischargerchamber and is adjustable therein toward and from the injeetor-nozzle in any suitable manner to regulate the supply of powder to the discharge-pipe. In the construction shown the discharge-pipe is provided outside of the powder dischargechamber with a fixed collar or flange 70, which engages loosely in an annular groove in an adjusting-sleeve which is internally threaded and screwed on an externallythreaded boss on the wall of the powder discharge-ehamber surrounding the discharge-pipe. The latter is moved toward and from the injector-nozzle by screwing up or unscrewing the adjustingsleeve.

L represents a flexible powder-distributing pipe, which is connected by a suitable union Z with the outer end of the powder dischargepipe. The distributing hose or pipe is provided at its outer end, if desired, with a powder-distributing nozzle or device l', which may be of a form calculated to best distribute the powder for any particular purpose. The compressed air discharging from the injectornozzle J sucks the powder into the dischargetube from the discharge-chamber and blows the same out through the distributing pipe and nozzle with a force which can be regulated as desired by properly manipulating the controlling-valve it of the air-supply pipe H. The quantity of the powder discharged is regulated to a nicety by moving the dischargepipe toward or from the injector-nozzle.

The powder-receptacle is provided with an agitating device for loosening or agitating the powder in the supply and discharge chamhers to prevent the same from caking or packing and clogging the discharge-chamber. This agitator, which is located in the powder-supply chamber, is preferably constructed as follows, (see Figs. 3, 4:, and 5:) M represents a vertical agitator-shaft, which is journaled at its upper end in bearing-openings in a crossbar at, which is secured to and bridges the upper end of the supply-chamber, and a substantially U-shaped yoke or bar at, secured to and depending from the cross-bar. The lower end of the agitator-shaft has secured thereto or is formed with a loop 012?, which extends down into the upper portion of the powder discharge -chamber, and is preferably provided with bent or irregular side pieces. The agitator-shaft has secured thereto between the bearing-yoke and the loop at its lower end. a plurality of agitating bars or wires at. These wires are provided with upper and lower lateral arms, which are attached to the agitatorshaft in any suitable manner, and upright portions, which are corrugated or bent into irregular form. The upright portions of the agitating bars or wires are arranged at different distances from the agitator-shaft, so

as to thoroughly loosen and agitate the entire l mass of powder in the supply-chamber, and one or more of the agitating bars or wires preferably contact with or move in close proximity to the side and bottom walls of the powder-supply chamber to loosen any powder ad hering to such walls. The agitator is oscillated by suitable mechanism actuated by the pump-lever F, for which purpose the shaft of the agitator hasfixed thereto above its bearing-yoke a beveled gear-wheel a, meshing with a beveled gear-wheel 02, secured to the coupling it.

inner end of a horizontal shaft 01?, which passes through and bears in a hole in the vertical wall of the supply-chamber and is journaled at its inner end in a bearing Men the bearingyoke for the agitator-shaft. The outer end of the horizontal shaft is provided with a rockarm a, Fig. 1, connected by a link a with the pump-operating lever F. When the pump lever is rocked or oscillated to actuate the pump-pistons, it oscillates the agitator. The oscillating agitator operates much more effectively in loosening and agitating the powder than does a rotary agitator, which latter has a tendency to propel and pack the powder down into the discharge-chamber.

The liquid-receptacle Gr may be of any suitble form, and, like the the powder-receptacle, preferably has a discharge-chamber or contracted throat O and is provided with a removable cover or closure 0 of any suitable character, whereby the liquid can be introduced into the receptacle.

P represents an air-supply pipe or conduit, which is connected at its upper end with the air-resermir above the level of the liquid in the liquid-receptacle through the three-way coupling 72 and is provided with a controlling-valve p. The air-supply pipe connects at its lower end with an injector-nozzle 1), similar to the injector-nozzle J and extending into the contracted discharge-chamber of the liquid-receptacle,

Q represents a liquid discharge pipe or tube, which extends through the wall of the discharge-chamber, with its inner open end surrounding the injector-nozzle, the dischargepipe preferably being adjustable toward and. from the injector-nozzle in substantially the same manner as the discharge-pipe for the powder to regulate the amount of the liquid. discharged. The liquid discharge-pipe is, however, preferably surrounded by a stuffingbox 9, which prevents leakage. The outer end of the liquid discharge-pipe is connected by a suitable union 9* with a flexible distributing pipe or hose R, provided at its outer end with an atomizing-nozzle consisting of a liquid-discharge tube 1'', having a lateral discharge-orifice and provided with a regulatingvalve 9' of any usual or suitable construction, and. an air tube or nozzle 0", connected by a flexible air pipe or hose S with the three-way The air-pipe S is provided with aregulating-valves, Fig. 1. The dischargeoriiice of the-air-tube r is arranged adjacent -to the discharge-orifice of the liquid-tube in such a manner as to direct the current of air across the discharging jet of liquid and break the latter up into a line spray or mist, as in the case of an ordinary atomizer. The force and quantity of the liquid discharged can be regulated as desired by turning the valve p in the air-supply pipe P and adjusting the liquid discharge-pipe toward or from the injectornozzle p, and the liquid can be discharged in of the valves it 1).

the form of a stream or spray of any desired force and proportion of liquid and air by properly manipulating the valves 4- and s in the atomizing-nozzle and air-pipe S.

In operation of the machine the pumps A A are actuated by reciprocating the lever F and air compressed into the air-reservoir C. Either powder or liquid, separately or both simultaneously, can be distributed by properly setting the valves it and p in the air-supply pipes H and P, leading to the powder and liquid receptacles, and the flow of either or both can be stopped by closing either or both As the air for blowing the powder and liquid is taken from the practically constant source of pressure inthe airreservoir C, the material is delivered in an uninterrupted or continuous jet, which can be nicely regulated, as before explained, and as the air which is led to the powder-receptacle does not come in contact with the liquid it is dry and has no tendency to moisten and cake the powder, thereby interfering with its proper distribution.

The apparatus described is portable and of comparatively small size and for convenience in operation is preferably placed on a suitable stand or frame, (indicated at T,) which, however, forms no part of the invention.

1 claim as my invention 1. The combination of abase, air-compressors mounted on said base, an air-reservoir mounted on said base and connected with said air-compressors, separate powder and liquid receptacles mounted on said base, air-supply pipes leading from said air-reservoir to said powder and liquid receptacles and each provided with a controlling-valve, and powder and liquid distributing pipes leading from said powder and liquid receptacles, substantially as set forth.

2. The combination of a base, air-compressors mounted on said base, an air-reservoir mounted on said base and connected with said air-compressors, an operating-lever fulcrumed on said reservoir and connected to said aircompressors, separate powder and liquid receptacles mounted on said base, air-supply pipes leading from said air-reservoir to said powder and liquid receptacles and each provided with a controlling-valve, and powder and liquid distributing pipes leading from said powder and liquid receptacles, substantially as set forth.

3. The combination of a powder-receptacle, a compressed-air-supply pip'e provided with a nozzle, a movable discharge-pipe for the powder communicating with the lower portion of said receptacle, toward which pipe the powder in said receptacle falls by gravity, said discharge-pipe having an open end surrounding said nozzle in said receptacle and separated therefrom by an annular space through which the powder is drawn into said discharge-pipe, and means for adjusting said discharge-pipe toward and from said nozzle, substantially as set forth.

4:. The combination of a powder-receptacle having a supply-chamber and a dischargechamber located below and communicating with said supply-chamber, into which discharge-chamber the powder falls by gravity, a compressed-air-supply pipe provided with a nozzle projecting into said discharge-chamber, a movable discharge-pipe communicating with said discharge-chamber and having an open end surrounding said nozzle in said discharge-chamber and separated therefrom by an annular space through which the powder is drawn into said discharge-pipe, substantially as set forth.

5. The combination of a powder-receptacle having a supply-chamber provided with a hopper-bottom and a discharge-chamber below and communicating with said hopper-bottom into which the powder falls by gravity, a compressed-air-supply pipe provided with a nozzle projecting into said discharge-chamber, a movable discharge-pipe having an open end projecting into said discharge-chamber and surrounding said discharge-nozzle in said discharge-chamber and separated therefrom by an annular space through which the powder is drawn into said discharge-pipe, and means for adjusting said discharge-pipe toward and from said nozzle, substantially as set forth.

6. The combination of air-compressors, an air-reservoir connected with said air-compressors, a powder-receptacle connected with said air-reservoir, an agitator comprising a shaft journaled in said powder-receptacle, and a plurality of rods having irregular portions and arms attached to said shaft, an operatinglever connected with said air-compressors, a powder discharge-pipe leading from said powder-receptacle, and means connecting said operating-lever with said agitator for oscillat ing the latter, substantially as set forth.

7 The combination of a powder-receptacle comprising a supply-chamber having a discharge-opening in its bottom, and a contracted discharge-chamber below said opening, a powder-agitator in said receptacle comprising an upright shaft journaled at its upper end in bearings in said supply-chamber, a loop attached to said shaft at its lower end and having irregular side pieces adjacent to the walls

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