US1236421A

US1236421A - Dispensing-can.

Info

Publication number: US1236421A
Authority: US
Inventors: Frederick M Furber
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1914-02-28
Filing date: 1914-02-28
Publication date: 1917-08-14
Anticipated expiration: 1934-08-14

Description

F. M. FURBER.

DISPENSING CAN. APPLICATION FILED FEB. 28,1914.

Patented Aug. 14, 1917.

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FREDERICK in. FURBER, 0E REVERE, MASSACHUSETTS, ASSIGNOR To UNITED sHoE MACHINERY coMrAnY, or rATEnsoN, NEW JERSEY, A CORPORATION on NEW JERSEY.

DISPENSING-CAN.

manner.

Application filed February 28, 19M. Serial No. 821,680.

To all whom it may concern:

Be it known that I, FREDERICK M. FURBER, a citizen of the United States, residing at Revere, in the county of Sufiolk and State of Massachusetts, have invented certain Improvements in Dispensing-Cans, of which the following description, in connection with the accompanying drawings, is a specifica-- tion, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to dispensing cans of the character employed to hold and dis pense benzin, naphtha, and other highly volatile liquids.

In many industries, as for instance in the manufacture of boots and shoes, benzin and I similar liquids are much used for cleaning purposes. The use of liquids of this character is attended with a considerable loss of the liquid through evaporation and, in the case of highly inflammable liquids such as benzin, it also involves considerable fire risk. It has been customary, therefore, particularly because of the volatile character of these liquids, to employ some type of a dispensing device which would prevent rapid vaporization while still providing for the convenient use of the liquid by the workman. Such devices, however, as usually constructed still permit considerable loss by evaporation; but they are objectionable more particularly because they are very likely to I leak rapidly if tipped over or to explode if heated. I

The present invention has for its object to devise a dispensing device of the character indicated which, among other advantages, shall reduce the loss through evaporation to a minimum; in which the dispensing of the liquids can be easily controlled by the workman; which shall materially reduce the fire risk attending the use of highly inflammable liquids; and which, while of substantial and durable construction, can be economically manufactured.

These and. other features and advantages of the invention will be fully set forth and explained in the following detailed description, reference being made to the accompanying drawings in which:

Figure 1 is a perspective view of a dis- Specification of Letters Patent.

pensing can constructed in accordance with the present invention; and

Fig. 2 is a vertical cross sectional view thereof.

The device comprises a tank or container 2 having a threaded opening located preferably in the base through which the tank may be filled, this opening being normally closed by a threaded plug 3, provided with a plug retaining wire 5. Projecting in front of and from the base of the tank 2 is an extension 6 which is recessed in its upper side to receive a shallow concave dip pan or basin 8. The tank 2 and the extension 6 may conveniently be cast integrally. A discharge passage for the liquid i the tank 2 is provided by a hollow nozzle 9 projecting from the lower part of the tank to which it is secured by the bolts 12. The lower or outlet end 13 of the nozzle 9 terminates in close proximity to the bottom of the pan 8 so that the liquid may flow from the container through the nozzle into the dip pan 8 until the level of the liquid rises above the outlet of the nozzle when further flow will be automatically stopped by the action of the air pressure, this arrangement constituting the well known barometric feed. y

In the lower end 13 of the nozzle, a ground spherical valve seat 15 is formed to receive a ball valve 17 which rests on the dip pan 8. A spring 18, located in the recess of the extension 6, supports the pan 8 and tends to hold it inan elevated position in which the valve 17 will be held in its seat 15. It will be noted that the discharge passage through,

the nozzle 9 is contracted somewhat at the valve seat so that the valve 17, when seated, effectually closes this passage. The ball 17 and the nozzle 9 preferably are made of some comparatively hard and non-corrodible material, such for instance as bronze, which will resist the agencies that otherwise might easily spoil the fit of the valve in its seat.

The comparatively wide bottom face 20 of the nozzle 9 is substantially on a level with the rim of the extension 6 in which the dip pan is located. It will be seen from an inspection of Fig. 2 that the rear edge of the dip pan engages this face 20 of the nozzle and that the spring 18 bears against the bottom of the dip pan at a point between opening provided in the base after which.

the plug 3 is screwed into place and the tank turned 1nto its upright or operative position. When the dip pan 8 is depressed by the workman against the tension of the spring 18, it rocks about its point of engagement with the face 20 of the nozzle as a fulcrum and allows the ball 17 to drop away from the seat 15 and consequently permits the liquid to flow through the nozzle 9 into the basin 8 where it may be conveniently used. Only a small quantity of liquid can be dispensed at one time in this manner since the pan 8 will soon fill up sufliciently to cover the outlet of the nozzle and thus stop the flow of liquid automatically. As soon as the pressure on the dip pan is released it is returned to its horizontal position by the spring 18 and the ball 17 is returned to its seat where it, effectually closes the discharge passage through the nozzle and prevents any further flow of the liquid.

It will be evident that, if the container is tipped into any position, the spring 18 will still hold the valve 17 in its seat and thus will prevent any appreciable leakage of the liquid. It will also be evident that, if the container is heated sufiiciently to produce an excessive vaporization of the liquid within it, the pressure so produced will be sufiicient to open the valve 17 automatically against thepressure of the spring 18 long before any danger of exploding the container occurs. The pressure within the container thus will be relieved whenever it rises to an excessive degree.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is 1. In a device of the character described, a closed container adapted to hold liquid and having a discharge passage for the liquid, a normally empty dip pan arranged to receive the liquid flowing through said passage by a barometric feed, and means controlled by manual pressure upon an accessible portion of said dip panfor controlling the flow1 of liquid through said passage.-

2. In a device of the character described, a container adapted to hold liquid and having a discharge passage for the liquid, a

normally empty dip panmovably supported inseam adjacent to said container and arranged when moved to receive the liquid flowing through said passage, and a valve constructed and arranged normally to maintain said passage closed and to be opened by a downward movement of said dip pan.

3. In a device of the character described, a container adapted to hold liquid and having' a discharge passage for the liquid, a dip pan adjacent to said container arranged to receive the liquid discharged through said passage, a valve in said passage arranged to control the flow of liquid therethrough, said valve being supported by the dip pan, and

a spring supporting said dip pan and cooperating with said pan normally to maintain said valve closed.

4. In a device of the character described, a container adapted to hold liquid and having a discharge passage for the liquid, a normally empty dip pan adjacent to said container arranged to receive the liquid discharged through said passage, a valve controlled by said dip pan and arranged when the pan is empty to close said passage, and supporting means for said clip pan arranged to permit the pan to be depressed to cause said valve to open said passage.

5. In a device of the character described,

a container adapted to hold liquid and hav ing a discharge passage for the liquid, a dip pan supported adjacent to said container and arranged to receive the liquid discharged through said passage, and means constructed and arranged to close said passage yieldingly irrespective of the amountvof liquid in the dip pan.

6. In a device of the character described, a closed container adapted to hold liquid and having a discharge passage for the liquid, a normally empty dip pan supported adjacent to said container'and arranged to receive the liquid discharged through said passage and a manually controlled valve normally closing said passage when the pan is empty but arranged to be opened automatically by excessive pressure within said container. v

7. In a device of the character described, a container for liquid, a movable dip pan supported adjacent to said container, a nozzle arranged to conduct liquid from said container to said dip pan, a valve supported by said dip pan and arranged to control the flow of liquid through said nozzle, and a spring pressing against said dip pan and cohaving a discharge passage for the liquid,

a normally empty movable dip pan into which the liquid discharges through said passage, and a valve for closing said pasnaeaaar sage, said valve being constructed and arranged to be operated by movement of said pan irrespective of the amount of liquid therein and to be opened automatically by excessive pressure within said container.

9. In a device of the character described, a closed container adapted to hold liquid and having a discharge passage for the liquid, a normally empty movable dip pan adjacent to said container into which the liquid feeds barometrically through said passage, and a valve for closing said passage, said valve being constructed and arranged to be opened either by a movement of said dip pan or by excessive pressure within said container.

10. In a device of the character described, a closed container for liquid, a dip pan movably supported adjacent to said container, a nozzle arranged to conduct liquid from said container to said dip pan, said nozzle having its lower end positioned closed to the bottom of the dip pan and having a valve seat in said end, a ball valve supported on said dip pan in position to enter said seat to stop the flow of liquid through said nozzle, and a spring acting on said dip pan in a direction to hold said valve normally in its seat, said valve being arranged to be released from its seat by depressing said pan or by excessive pressure within said container.

11. In a device of the character described, a closed container adapted to hold liquid and having a discharge passage for the liquid a normally empty dip pan supported ad acent to said container and arranged to receive the liquid discharged through said passage and a valve normally closing said passage but arranged to be opened auto matically by excessive pressure within the container, and to be closed automatically when such pressure is relieved.

12. In a device of the character described, a liquid container closed except for a discharge passage in its lower portion, a movable dip pan, means movable with said dip pan and cooperating therewith in one position to close said discharge passage, and means urging said pan toward said passage tending at all times to cause the closure of the passage irrespective of Whether the container is in upright or inverted position.

In testimony whereof I havesigned my name to this specification in the presence of two subscribing witnesses.

FREDERICK M. FURBER.

Witnesses:

CHESTER E. Rooms, LILIJAN B. DUPEE.