US1466896A - Dispensing device - Google Patents

Description

Sept. 4, 1923. 1,466,696

A. J. FRAME DISPENSING DEVICE Filed May 19, 1921 Patented Sept. 4, 1923.

iJNITEZD STATES ARCHIE JAMES FRAME, OF MIA'MI, FLQIELIDA.

FELIX, OF HABTFGRD, KENTUCKY.

"lIGIl'OE 01 ONE HALF TO FRANK L.

DISPENSING DEVICE.

Application filed May 19,

T 0 all to hem 152, may concern Be it known that I, Acorns JAMns FRAMIG, a citizen of the United States, residing at Miami, in the county of Dads and State of Florida, have invented certain new and useful Improvements in Dispensing Devices, oi which the following is a specification.

My invention consists in a new and useful improvement in dispensing devices, and is designed more particularly for use in connection with oil cans and similar forms of lubricant receptacles.

The purpose of my invention is to provide a force-feed oil can having a pump cylinder which is provided with slide valves. Valves of this type are superior to valves of the seating type, such as disc or ball valves, tor the reason that slide valves are reliable in opening and closing the ports oi the pump cylinder. since they cannot be clogged by grit or lint in the lubricant passing through them. Such foreign substances, often pres-- out in the lubricant, tend to obstruct valves of the seating type, and thus prevent the effective operation of the forced teed.

The novel feature of my invention consists in the use in the pump cylinder of two slide valves to control the inlet and outlet ports of the cylinder, respectively. By the use of my novel construction it is possible to produce a force-teed oil can in which a column of oil may be supplied to the spout of the can and retained therein by the dos ing of the outlet valve in the pump cylinder during each successive suction stroke of the piston. This is a very important advantage in a device of this kind as it makes it possible to supply a lubricant to otherwise inaccessible points at considerable heights above the dispensing device.

My invention is embodied in the details of construction illustrated in the drawing and hereinafter fully described, but I do not consider my invention limited to the specific embodiment shown herein but re'ler 'lor its scope to the claim appended hereto.

The drawing is a side elevation of an oil can embodying my invention, portions of the wall of the can being broken away to expose the operative mechanism which is shown in section.

The oil can 0 is of the ordinary type, provided with the usual cap O covering the opening in the can 0 through which the oil may be supplied to the can 0. In the can 0,

1921. Serial No. 470,974.

there is disposed the pump cylinder C which protrudes through the rear wall of the can 0 above the handle H. N ear its lower end the cylinder C is provided with two ports C and C Connected with the port C is a short pipe I extending downwardly from the cylinder C to a point closely adjacent the bottom of the can 0. Connected with the port C is the pipe J which extends upwardly from the cylinder C and connects with the spout R of the can 0. This spout It is not in communication with the interior of the can 0 except through the pump cylinder C. The end of the cylinder C outside of the can O is closed by a screw-cap C and the cylinder C is closed at its end within the can U by an end wall C. Through the center of the screw-cap C there is slidably disposed the piston P having upon its end within the cylinder C the head P upon which is mounted. the cupavasher P by means of the washer P and the nut P. This cup-washer P fits snugly inside oil'- the sleeve S which is slidably disposed within the cylinder C. Between the piston P and the wall C there is disposed the coil spring P adapted to hold the piston P normally at the upper end of the cylinder C. A thumb button P is provided upon the outer end of the piston P.

The sleeve S is made somewhat shorter than the inside length of the cylinder C so that the sleeve is permitted endwise movement in the cylinder. The sleeve S is provided with two ports S and S which are so disposed relative to the ports C and C that when the sleeve S is moved to its limit of movement in one direction the ports S and C register, and when it is moved to the limit of its movement in the opposite direction the ports S and C register.

The handle H. has its lower end H fastened to the can 0 near its bottom and its upper end H fastened to the can 0 directly under the cylinder C. A pin H passes through the end. H and the cylinder C at this point and is received through a slotin the sleeve S. This pin H and slot S serve to hold the sleeve S in such position relative to the cylinder C that the ports C and S and the ports C and S will be keptin constant alignment.

From the foregoing description it will be obvious that as the spring P presses the piston P outwardly the contact of the washer P will move the sleeve S until its upper end strikes the cap C. When the sleeve S assumes this position the ports S and C register and the sleeve S closes the port G When the ports are in this position the oil within the can (J flows through the intake pipe I, and the ports C and S to fill the interior Oil the pump cylinder 0. \Vhen the piston P is forced into the cylinder C by pressure of the thumb of the user upon the button P, the washer P causes the sleeve S to move downwardly until its lower end strikes the end wall C of the cylinder 0. When the sleeve S assumes this position, the sleeve S closes the intake port C? and the ports C and S register, thus opening the outlet for the oil into the pipe J. The pres sure exerted upon the oil in the cylinder C by the piston P causes it to flow from the cylinder through the ports C and S and the pipe J to the spout R, and thus be dispensed as desired. When pressure upon the piston P is removed, the spring i." retracts the piston 1 in the cylinder C, thus restoring the sleeve S to its initial position and thus closing the outlet port C and again opening the inlet port The retraction of the piston P causes oil to flow through the pipe I and ports C and S and thus refill the cylinder C with a new charge. The closing of the port C holds the column of oil supplied to the pipe J and spout R therein, and when the operation of the pis ton P is repeated the next charge forces outwardly the oil contained in the pipe J and spout R. Thus it will be seen that so long as the supply of oil in the can 0 is adequate, the mechanism will continue to lift the column of oil in the pipe J and spout R, thus making it possible to pump oil through a considerable length of spout to reach an otherwise inaccessible height.

Having described my invention, what I claim is:

In a force-teed oil can, the combination of an oil reservoir; a chamber provided with an inlet port and an outlet port; an inlet pipe connecting said inlet port with the interior of the reservoir; a discharge pipe connecting with said outlet port; a reciprocable sleeve in said chamber provided with an inlet port and an outlet port; a pin-and-slot connection between said chamber and said sleeve adapted to maintain said chamber ports and said sleeve ports in constant alignrnent; a piston head movable in said sleeve; said sleeve and said piston head being so related to each other and to said chamber that when said piston head is moved on the intake stroke said sleeve intake port and said chamber intake port are moved into register, suction being effected through said inlet pipe, and when said piston head is moved on the discharge stroke said sleeve outlet port and said chamber outlet port are moved into register, compression being effected through said outlet pipe; and a manually operated piston rod adapted to move said piston head.

In testimony whereof I aflix my signature.

ARCHIE JAMES FRAME.

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