US1091401A - Spraying-pump. - Google Patents

Description

S. SMITH.

SPRAYING PUMP. APPLICATION FILED SEPT.29,1911.

Patented M211124, 19141 war/1mg UNITED STATES PATENT OFFICE.

SIDNEY SMITH, OF MANSFIELD, OHIO, ASSIGNOR TO THE BARNES MANUFACTURING COMPANY, OF MANSFIELD,

OHIO, A CORPORATION OF OHIO.

SPRAYING-PUMP.

Specification of Letters Patent. Application filed September 29, 1911.

Patented Mar. 24, 1914. Serial No. 651,980.

1/ '0 all whom it may concern Be it known that I, SIDNEY SMITH, a citi- Zen of the United States, residing at Mansfield, in the county of Richland and State of Ohio, have invented certain new and useful Improvements in Spraying-Pumps, of which the following is a specification.

This invention relates to pumps used in spraying vegetation for destroying injurious insects and fungus growths, and has for its object the provision of a pump which may be secured firmly upon either the side or the end of a barrel and in which the parts will be easily accessible for cleaning or repairing or to permit the removal of an obstruction.

A pump embodying the invention is illustrated in the accompanying drawing and will be hereinafter fully described, the novel features of the invention being particularly pointed out in the appended claims.

In the drawings, Figure 1 is partly a side elevation and partly a central vertical section of the complete pump. Fig. 2 is a plan view of the support. Fig. 3 is a side elevation of the support. Fig. 4 is a bottom plan view of the support. Fig. 5 is a transverse section of the support taken on the line 55 of Fig. 3. Figs. 6 and 7 are enlarged detail views of the valves.

The pump comprises a plunger casing or i cylinder 1 and a barrel or air chamber which are secured upon and rise from a common base 3. This base 3 is a hollow casting having annular flanges t and 5 on its upper side, the bore of the flange a being l l l i i l l unobstructed while the flange 5 is bridged by a partition 6 as shown clearly in Fi 1. Both flanges and are internally threaded and the lower end of the plunger casing is threaded. so as to directly engage the threads of the flange I and be thereby secured in l position. A bushing 7 is threaded into the I flange 5 and the lower end of the cylinder 2 is threaded onto said bushing and is thereby supported and prevented from coll lapsing. The upper end of the cylinder 2 t l is closed by a cap 8 having a nipple or elbow 9 formed on its upper side. the inner end of said nipple being engaged by a dis charge tube 10 which depends from the cap within the air chamber and terminates at or near the bottom of said chamber. In the l outer end of the elbow or nipple is secured a coupling or union 11 to which is attached I the hose by which the liquid is directed onto the plants. On the upper side of the nipple 9 1s a lug or post 12 upon which the handle or operating lever 13 is fulcrumed. To the said lever are pivoted the upper ends of the plunger rod 14 and the agitator rod 15, the former passing into the casing l and the latter extending below the casing and playing through a guide 16 on the end of the base 3. The agitator 17 is a flat plate secured on the lower end of the rod 15 and a stop pin 18 is provided on the rod which, by impinging against the base 3, limits the upward movement of the lever and, consequently, prevents the lever being raised so far as to Withdraw the plunger from the casing 1. The plunger consists of an upper member 19, to which the plunger rod 14 is pivoted, and a lower member 20 threaded upon the upper member, the members being so shaped as to secure the packing 21 and compress the same against the wall of the plunger casing so as to prevent leakage.

In the base 3, are secured two valve casings 22 and 23 which are arranged concentric with the flanges 4t and 5, respectively. The casing comprises a hollow body 24.- having an externally threaded intermediate portion 25 adapted to engage a threaded opening in the bottom of the base and thereby secure the casing in place while immediately below said threaded portion the body is formed with an annular shoulder 26, adapted to engage the under surface of the base 3 and thereby prevent the casing being turned into the base so far as to interfere with the free flow of the liquid or to be liable to injury through contact with the plunger. The upper end of the body 24; is reduced and threaded, as shown at 27, and this threaded reduced end is engaged by a spider or cage 28 which confines a ball valve 29 adapted to seat upon the upper end of the body, as will be readily understood. It will be seen that the casing may be screwed into or out of the base without disturbing the plunger or the valve casing 23 and that by merely unscrewing the cage or spider the ball 29 will be freed so that its seat may be cleaned or a new ball substituted or other necessary attention given. The lower end or" the body 24 is open and internally threaded to receive and secure the upper end of the suction pipe 30, the lower end of said pipe being equipped with a strainer 31, as shown. It may be noted that while the agitator is disposed close to the suction pipe,

' ment with the passage 23 is similar to the casend upon which is screwed a cage or spider 32 to confine a ball valve 33 which seats on the upper end of the body. The body is also provided with an intermediate externally threaded portion 3a by which it is secured in the base 3 but its lower end is closed and between said lower end and said threaded portion 3e are ports 35, the annular shoulder 36 adapted to bear against the bottom of the base being located below said ports. This casing extends through and fits snugly in a smootlrbored opening in the bottom of the base while the threads 3st engage a threaded opening in the partition 6, as shown in Fig. 1, the ports 35 being thus brought into aline- 37 in the base.

To support the pump upon the tank or barrel, a bracket or shelf 38 is employed, said bracket or shelf having a flat top in which is formed a large opening 39 to accommodate the several working parts. At the corners of the shelf are openings 40 through which fastenings screws or bolts may be inserted to secure the device in place and along the side edges of the shelf are depending flanges 41 having arcuate lower edges to fit the side of the barrel. inwardly from but adjacent the flanges L1, longitudinal ribs or flanges 42 are formed on the under side of the shelf, said ribs having straight lower edges parallel with the top of the shelf and adapted to rest upon a flat surface so that the pump may be supported on the end of the tank or barrel, it being understood, of course, that when the device is placed on the side ofthe barrel said ribs as willpass into the opening in the barrel. The pump is secured to the shelf by a pair of clamping jaws or plates 43 which are adapted at one end to engage under hooks or overhanging lips 44, on the shelf and near the opposite end are provided with notches 4C3 through which set screws a6 are inserted into threaded openings 47 in the shelf to secure the clamping plates. In the inner edges of the clamping plates are opposed approxi mately semi-circular recesses a8 adapted to receive the pump barrel or cylinder 2, eX tended ribs or flanges at; being formed around said recesses to constitute a split sleeve whereby the cylinder may be firmly clamped without injury. The greater portion of the inner edges of the clamping plates are straight so that, when the plates are in position around the pump cylinder, they will be parallel and spaced apart to provide working room for the plunger and agitator rods. Ribs or flanges 50 are formed on the upper sides of the clamping plates along the inner edges of the same and bolts 51 are fitted in the ends of the said ribs or flanges in order that the plates may be drawn firmly around the pump cylinder. The ribs or flanges reinforce theclamping plates so as to prevent buckling of the same and also constitutes guides to prevent lateral swaying and bending of the plunger and agitator rods. The shelf and the clamping plates may be disposed at any point along the pump cylinder so as to adapt the pump to the depth of the barrel or tank upon which it is placed.

T he operation will be readily understood. On the up stroke of the plunger a partial vacuum will be formed below the same which will cause the valve 29 to rise and the valve 33 to drop whereupon the liquid will flow into the base 3. On the down stroke of the plunger, the valves will be reversed and the liquid will be forced through the ports and past the valve 33 into the cylinder 2. The accumulation of liquid in the cylinder 2 will compress the air therein with the result that the liquid will be forced into and through the discharge pipe in a steady stream.

Having thus described my invention, what I claim is:

1. In a pump, the combination with a cyl inder, of a shelf adapted to be secured upon a receptacle and through which the cylinder passes, and clamping jaws detachably secured on the upper side of said shelf and embracing the cylinder.

2. In a pump, the combination with a cylinder, of a shelf through which the cylinder passes provided on its under side with depending flanges having arcuate lower edges and with other flanges having straight lower edges, and clamping jaws secured on said shelf and embracing the cylinder.

3. In a pump, the combination of a cylinder, a shelf through which the cylinder passes, overhanging lips on the shelf near one end thereof, clamping aws embracing the cylinder adapted at one end to engage under said overhanging lips and having notches in their edges at the opposite end, and set screws inserted through said notches into the shelf.

In testimony whereof I atliX my signature,

in presence of two witnesses.

SIDNEY SMITH.

Witnesses HENRY J. Lowe, M. F. Vonennn, Jr.

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