US1576207A - Priming can for stoves - Google Patents

Description

March 9 1926. 1,576,207

- I c. w. MUMMERY PRIMING CAN FOR STOVES Filed July 9, 1925 5 25 T ,22 2 l1. q l H I r? 26 g I Ina/921602 C? eW YQmWeeIy Patented Mar. 9, 1926.

UNi'if'E. STATE is iazw CLYDE W. MUMMEBIY, OF CHICAGO, TLLIN'OIS.

PRIMING CAN FOR STOVES.

Application filed July 9, 1925. Serial No. 42,417.

To all whom it may concern Be it known that I, Citron V MUMMERY, citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Priming Cans for Stoves, of which the following is a speci- .iication, and which are illustrated in the accompanying drawing.

This invention relates to measuring and dispensing devices and has for its principal object to provide a container for priming the fuel used to start wickless oil burners, that will permit a series. of measuring charges to be delivered by an inexperienced or careless operator without having unintentional discharges either from the delivery spout or the vent.

The preferred form of the invention is illustrated in the accompanying drawings in which- Fig. 1 is a vertical section, through a.

priming can or container embodying the invention;

25 Fig. 2 is a transverse section taken on the line 22 of Fig. 1;

Fig. 3 is a plan view with the closure cap removed, and V Fig. t is a plan view of such cap.

The body of the can or container is made of a cylinder 10, a bottom 11, and a top 12. The bottom and top are circular and provided with circumferential flanges 13 and 14 respectively which telescope with the cylinder and are soldered thereto. A handle 15 is secured to the body of the can and converts one portion of it into what may be. called back.

The bulk of the space enclosed by the can, or container, is used as a storage chamber from which the measuring chamber 16, located at the bottom of the can, is replenished after each priming charge is delivered. The measuring chamber is formed by a plate 17 having flanges 18 on three sides soldered to the bottom. The sector-shaped opening 19 between the fourth side and the wall of the cylinder 10 forms a port through which the fuel readily flows into the measuring chamoer.

Fuel is discharged from the measuring chamber through a. delivery spout 20 connected with it at the front side, inclined t0- wards the backof the can to a point adjacent the top, then bent somewhat abruptly towards the front' Preferably the delivery spout is made from commercial tubing of suitable diameter and adjacent to the delivery end. it is enlarged into a bulb 21. This maybe formed by operatingon the tube with one die to expand it to the desired diameter and subsequently operating on the end portion with another die to reduce the diameter again. 1 y i A generally cylindrical filling neck 22 is soldered to thetop of the can and extends upwardly therefrom. The neck is threaded to receive a closure cap 23 perforated at 24 and equipped with a vent tube 25 soldered to the underside of its top portion surrounding the perforation and extending downwardly adjacent to the bottom of the neck it is reduced in diameter, as indicated at 26. T 1e neck communicates with the body of the can through a filling opening 27 and a por tion 28 of the top is left intact opposite'to the end of the vent tube 25. A tubular skirt 29 is soldered to the underside of the top and pro]ects downwardly into the body of the can I, I

The can is charged with the fuel by removing the closure cap 23 and pouring the fuel into the neck 22. As soon as the fuel rises to the bottom of the skirt 29 air will be trapped between the skirt and the surrounding cylindrical wall 10 and prevent the can from being'filled to any greater height, ex- 7 cept in the skirt and the neck. A charge of fuel enters the measuring chamber 16 through the port 19 filling that chamber and a portion of the discharge spout. Upon tilting the can forwardly the air trapped in its upper portion moves along the rear wall and stops the flow of fuel through the port 19. Continued movement of the can to the front results in a measured charge contained within the chamber 16 and the spout being discharged. By returning the can to upright position, the air within the can is moved away from the port 19 and another charge flows from the storage chamber through that port into the measuring cham her and the spout. Heretofore this refilling of the measuring chamber has been accompanied by a spurt of spray from the discharge end of the spout. This was probably due to the rush of air through the spout picking up the fuel contained on the walls of the spout and collecting towards the bottom. 7

place in the bulb and thus no fuel escapes from the spout.

If the can is comparatively filled when it is turned to dispensing position, the fuel will pass through the opening 27 into the filling neck, but due tothe vent tube 25 with its small opening 26 at the bottom and the small opening 2% in the cap, a seal is formed that prevents the escape of any fuel through the cap. This is probably due to the relationship between the diameters of the tube and the openings 26 and 24 and the relative position of the lower "end of the tube and the wall formedby the portion 28 of the top.

By experiment I have found that an opening 24 made with a No.62 drill gives the best results when a one-eighth inch Pipe is used and is reeuc'ed to about the diameter portion in order to permit all the fuel 0on1 tai'n edin that chamber to be discharged;

but in primi 'ig cans heretofore used where the spout extends along the front of the storage chamber, it begins to deliver priming fuel when the can has been rotated through only a small angle. -As a result priming fuel is-often spilled on the floor and on the stove, thus beingwasted in addition to involving a source of danger. By

inclining the discharge spout "towardsthe rear, then bending it again towards the front the discharge of fuel is delayed untilthe can has been tilted through a relatively largeangle and, therefore, it is more likely that the discharge end of the spout has been placed over or upon the receptacle for primlng the. fuel.

This feature in connection with the bulb 21 and the vent permits the can to 'behandled by inexperienced and careless persons without spilling any of the measured charge of fuel or spurting the fuel through the spout or the vent in handling the can.

I claim as my invention:

1. Aineasuring and dispensing device includinga storage chamber, a handle at the back of the storage chamber, a measuring chamber at the bottom of the storage chamber and in conmutinication therewith adjacent 'to the back, a delivery spout connected with the front of the measuring chamber, a neck on top of the storage chamber a cap on the neck andhaving a small opening therein, and a vent ti'i'b'e'e'xtending downwardly from said cap with its upper endconnected to the cap around the small opening.

2. A measuring and dispensing device including a storage chamber, a handle at the back of the storage chamber, a measuring chamber at the'bottoIn-of the storage chamber and in communication therewith adjacent to the back, a delivery spout connected with the front of the measuring chzunber, a filling opening in the top of the storage chamber, a neck surrounding said opening, a cap on the neck an'd'having a small opening therein, and a venttube extending downwardly from said cap with its upper end connected to the cap around the small opening and having "a reduced bore in its lower end,

In testimony whereof I affix my signature.

CLYDE V. MUMMERY.

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