US1593383A - Spray pump - Google Patents

Description

c. BROWN SPRAY PUMP July 20,1926.

Filed March 21, 1922 I N V EN TOR. @Zizzfirozwz ATTORNEY Patented J uly' 20, 1926.

un rsa stares COLIN BROWN, OF ROCHESTER, NEW YORK, ASSIGNOR TO E. C. BROWN COMPANY,

' OF ROCHESTER, NEW YORK, A GORPORATION'OF NEW YORK.

SPRAY PUMP.

Application filed March 21, 1922. Serial No. 545,625.

My present invention relates to spraying apparatus and more particularly to spray pumps of the type in which the pump cylinder is immersed in the liquid contents of a tank or container and supported by a wall of the container, and my invention has for its object to improve the means of supporting the pump on said wall and to provide in connection therewith means whereby the rod of the pump piston may be interlocked to support the entire container from the handle of the pump. To these and other ends the invention consists in certain improvements and combinations of parts all as will hereinafter more fully described, the novel features being pointed out in the claim at the end of the specification.

In the drawings:-

Figure 1 is a side view of a spray pump constructed in accordance with and illustrating one embodiment of my invention;

Figure 2 is an enlarged fragmentary section through the upper portion of the container and pump cylinder;

Figure 3 is a horizontal section on the line 3-3 of Figure'2 with the locking member in one position, and a Figure 4 is a similar view with the locking member in another position.

Similar reference numerals throughout the several views indicate the same parts. t Figure 1 shows the complete apparatus with the exception of the discharge pipe that is attached to the nipple 1, but the machine as a whole operates in a manner well known in the art as one skilled will readily recog nize, the pump hereinafter described being for the purpose of creating pressure in a liquid holding tank that forces the contents of the latter through a suitable nozzle.

Thetank or container is indicated at 2 and its top wall 3 is fitted with an upstanding threaded collar 4. The pump cylinder 5 depends within the tank being inserted through the collar and is provided at its top with a lateral shoulder 6 that rests or is rested on the collar through the medium of a rubber or similar interposed gasket 7. Fitting over and closing the head of the pump cylinder 5 is a threaded cap 8 which, when rotatably tightened screws down upon the collar 4 and clamps the shoulders 6 against the seat thus rigidly supporting the cylinder from its upper end only within the tank.

. The top of the cap 8 on both its upper and under sides is preferably flat as shown to make even contact and is provided witha central apertureQ through which is adapted to reciprocate a piston rod 10 connected to the pump piston (not shown). The piston 60 rod terminates in a suitable handle 11 below which is a fixed flange or shoulder 12. In fact it is preferable to make the handle 11 and flange 12 in one casting with the rod 10 threaded into the same, as indicated at 13. (35

propriately placed a pair of undercut lugs 15 which are adapted to pass bodily through the enlarged portions of the slots 14 in a direction longitudinally of the piston rodand to interlock in the narrow portions of the slot when rotated through a rotary 7 motion transmitted to the handle 11. These positions are respectively shown in Figures 4 and 8. In this way the piston rod 10 may be locked in retracted position and the handle thereof used to carry or hang up the 89 entire apparatus as well as to prevent the pressure wlthin the tank and cylinder from expelling the piston and rod. Furthermore when the lugs 15 are interlocked with the cap, the handle 11 may be utilized to screw the cap down tightly with a greater leverage and facility.

The cap 8 may be stamped, spun or cast and with the flat form shown it is a simple operation to provide it with the aperture 90 and slots 9 and 14. It may be made with greater care and finish than the rest of the apparatus to improve the general appearance thereof without adding greatly to the ex pense, as for instance when it is composed of polished brass.

I claim as my invention In a spray pump, the combination with a container having a threaded collar projecting outwardly from an end wall thereof and having a flange at its outer end, a pump cylinder within the container having its outer end projecting therefrom and provided with a surrounding flange overlying opening therethrough and a pair of arcuate keyhole slots spaced from said opening, a plate restlng upon said top and forming a cover for said slots, under-cut lugs depend ing from the plate and projecting through the slots into the cylinder and engaging the inner face of the cap, a piston rod within the cylinder projecting through said central opening and connected witli saidp'late and a handle projecting upwardly from the plate. A a a v COLIN BROWN.

Images