US1747800A - Mechanic's pump oiler - Google Patents

Description

Feb. 18, 1930. E. R. SYMONS 1,747,800

' MECHANICS PUMP OILER Filed Feb. 1 1927 ug un n t loveptor Patented Feb. 18, 1930 UNITED STATES waste FICE MECHANICS PUMP OILER Application filed February 14, 1927. Serial No. 168,092.

The invention relates to improvements in mechanics pump'oilers and an object of the invention is to provide a container or can body of a truncated cone shape which improves the handling balance of the can and makes the can non-tipping under ordinary workingconditions and further which permits of the use of a handle which will not stick out unduly fromthe body of the can.

A further object is to provide a mechanics pump oiler wherein all the pumping mechanism is demountable from the can body and to form the handle in a simple, cheap and durable manner and such that it is demountable with the pumping mechanism andforms also a fulcrum for the operating lever.

A further object is to provide a simple and inexpensive operating lever which can be quickly put in place and which is positioned in regard to the handle to allow of easy manipulation whetherthe hand be gloved or otherwise. 4 i V A further object is to provide an oiler with an inclined spout which can be quickly assembledand easily replaced if necessaryand which is attached to the pump plunger in a manner such that a strong oint can be made at such point. A further-object of the invention is to provide a novel means for closing the lower ends of both the cylinder and the plungerand further to provide an effective cheap and durable fastening for the intake pipe strainer and also an efiective and simple manner of providing a valve seat in such pipe.

With theab-ove more important and other minor objects in view which will become more apparent as the description proceeds, the invention consists essentially in the arrangement and construction of parts hereinafter more particularly described, reference being had to the accompanying drawing, in which:'

' Fig. 1 is'a vertical sectional view through the can body and parts contained therein, the upper parts being shown in side elevation.

Fig. 2 is a plan view of the device.

Fig. 3 is an enlarged detailed vertical sectional View centrally through the cylinder and plunger.

Fig. 4 is a horizontal sectional view at 4'l' Figure 3.

Fig. 5 is a horizontal sectional view at 5-5 Figure 3.

Fig. 6 is a view of the lower end of the intake pipe. I I

Fig. 7 is an enlarged detailed vertical sectional view at 77 Figure 1.

In the drawing like characters of reference indicate corresponding parts in the several figures.

The oil container or can body 1 is of a truncated cone shape, thereby providing a com paratively wide bottom and a narrow top. The upper end of the body terminates in an upstanding screw threaded nipple 2 and this receives a closure cap 3.

Centrally to the cap I secure permanently a cylinder 4, the cylinder passing through the cap and terminating a slight distance thereabove and having the lower end thereof cut at an angle of say forty-five degrees. The cylinder is formed from brass tubing. The lower end of the cylinder is closed by a plug 5 which is provided with a central opening 6 and a bridge 7 crossing the inner side of the opening. The plug is die cast and soldered to the cylinder.

Within the cylinder I mount slidably a plunger 8 which extends considerably thereabove. The lower end of the plunger is formed with an inturned flange 9 and it carries the valve casing 10. This valve casing is also die cast and it will be here observed that the flange is imbedded in the material forming the casting, thus securely retaining the casing and sealing the joints without soldering orjother means. I

Thevalve casing provides an interior oil passage 11 having an internal seat 11 atthe upper end thereof and the lower end of the valve casing is interiorly screw threaded to receive the flanged brass screw 12 which is formed with an oil passage 13 and has the upper end thereof forming a valve seat 15. The lower end of the valve casing is provided with a circumscribing channel which receives an expansion ring 16. The customary leather washer 17 is held in place on the lower end of the valve casing by the screw engaging the bridge 12 and is expanded against the cylinder by the ring. A ball valve 18 is held normally seated on the seat 15 by a coiled spring 19 resting on the valve and having the upper end thereof engaging the seat 11. Through the upper end of the plunger I pass a pin 20 which has the ends thereof projecting beyond the sides of the plunger to provide studs 21.

The handle 22 is formed from a single piece of wire bent centrally on itself and having the ends thereof terminating in inturned aligned pivot pins 23 and 24. Here it will be observed that the wire is shaped to provide a convenient hand grip at one side of the can body and that the ends of the wire straddle the upper end of the cylinder and rest on the cap 2 to which they are fastened by soldering. vAt the side remote from the hand grip, the ends of the wire are upturned so that the pins 23 and 24 arein an elevated position relative to the cap. I

An operating lever 25 is also provided, this being formed from a single piece of wire bent in an elongated U-shaped manner and spanning the upper end of the plunger and having the ends thereof terminating in hooks 26 which receive the pins 23 and 24 and the body parts thereof more or less centrally dented to provide semicircular pockets 27 adapted to receive the stud like ends 21 of the pin 20.

A yoke 28 is secured to the cap, this being also formed from a single piece of wire bent in a Ushaped manner over the lever 25 and having the ends thereof turned to provide foot pieces 29 which are also soldered to the cap. It will be observed that the yoke is positioned at the same side of the can as the handle and that it limits the up position of the lever 25 which latter it will be observed has the bow thereof overhanging the upper end of the handle. A coiled spring 30 is placed on the upper end of the plunger between the studs 21 and the cap and normally holds the lever in the position best shownv in Figure 1.

To the upper end of the plunger I secure by soldering the lower end of the discharge spout 31 which it will be observed takes the inclined position as shown in Figure 1 and extends to the side of the can remote from the handle.

Into the opening 6 of the plug 5, I screw Said ring is frictionally held in place and provides a seat for a ball valve 36. A spring 37 is inserted within the pipe and has one end resting on the latter ball and the upper end 7 It will be particularly observed that the intake pipe is inclined at an angle of approximately forty-five clegrees and that the lower end thereof terminates adjacent the bottom of the can at the side remote from the handle.

The operation of the device is as follows, assuming there is oil in the can 1. The lever 25 is successively pressed down a few times and this causes a sufficient vacuum in the lower end of the cylinder to effect the filling of the cylinder with oil, the oil passing up through the intake pipe past the valve 36 whichopens. Thereafter oil will always remain in the lower end of the cylinder and the down pressing of the lever Will subsequently eifectthe discharge of oil through the spout,- the oil'passing upwardly through the passages 13 and 11 and past the valve 18.

This oiler is particularly positive in its action and there is a good stream and one is able to use it until practically all the oil has been extracted from the can. The arrangement of the handle and the lever is a very convenient one and it permits the oiler to be operated under adverse conditions such as with a gloved hand, as the handle can be held by the gloved fingers and the lever actuated by the thumb.

The design of theparts is extremely simple permitting of the manufacturing of the can at comparatively small cost and the arrangement is such that all parts can be readily inspected or dismounted and replacements readily made. All the working parts are carried by the cap so that they can be readily dismounted from the can body.

What I claim as my invention is 1. In combination, a screw threaded cap, a vertically disposed pumping mechanism passing therethrough and carried thereby, an inclined oil inlet pipe communicating with the lower end of the pumping mechanism, an inclined discharge spout communicating with the upper end of the pumping mechanism, the said discharge spout and intake pipe being contained in the same vertical plane and converging towards the pumping mechanism and a handle secured to the cap and contained in the latter vertical plane and being positioned at the side of the pumping mechanism remote from the spout.

2. In combination, a screw cap, a cylinder secured to and extending through the cap, a plunger slidably mounted in the cylinder and extending thereabove, diametrically opposing studs carried by the plunger, a handle secured permanently to the cap and extended therebeyond to provide elevated pivot pins, an operating lever straddling the plunger and ridingthe studs and having one end thereof pivotally mounted on the pivot pins and the other end overlying the handle, a yoke permanently secured to the cap and passing over the latter end of the lever and limiting its uppermost position and a coiled spring mounted on the plunger and positioned between the studs and the cap.

3. In combination, a screw cap, a cylinder carried thereby and extending therethrough, a plunger slidably mounted in the cylinder and projecting thereabove, a handle permanently attached to the cap and'formed from a single piece of wire bent to form a hand grip, to straddle the upper end of the cylinder and to provide elevated pivot pins at the side of the plunger remote from the hand grip, a pair of studs carried by the upper end of the plunger, an operating lever formed from a single piece of wire bent in a substantially U-shaped manner to straddle the upper end of the plunger and cross the studs and having the ends thereof hooked to receive the pivot pins, a coiled spring surrounding the plunger and interposed between the studs and the cap and a yoke secured to the cap and formed from a single piece of wire bent to straddle the lever and to provide foot pieces attached to the cap.

4. In an oil can pump, in combination, a vertical pump a cylinder having the lower end thereof terminating in an oblique plane, an inclined plug permanently closing the lower end of the cylinder and provided with a central screw threaded opening and a bridge thereacross, an inclined intake pipe screw threading into the opening, a valve seat provided within the pipe, a ball valve normally engaging the seat and a coiled spring interposed between the bridge and the valve.

5. In an oil can pump, in combination, a vertical pump cylinder having the lower end thereof terminating in an oblique plane, an inclined plug permanently closing the lower end of the cylinder and provided with a central screw threaded opening and a bridge there across, an inclined oil intake pipe screw threading into the opening, a valve seat contained within the pipe and formed from a short length of tubing frictionally held in place, a ball valve normally seating on the valve seat and a coiled spring interposed between the ball valve and the bridge.

6. In an oil can pump, a tubular plunger having the lower end thereof inwardly flared and a valve casing die cast on the lower end of the plunger and having the flanged end of the plunger imbedded in the casting.

Signed at Rocanville, Saskatchewan, this 22nd day of January, 1927.

ERNEST R. SYMONS.

Images