US1136740A - Valve for bottle-filling machines. - Google Patents

Description

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.VALVE FOR BOTTLE FILLING MACHINES.

APPLICATIDII FILED A`PILII7 |913- f Ptented Apr. 20, 191.5.w

INVNTOR i FRANK TYsoN BY H15 ATT RNE III, @I L/ 4.- AV/kw .5.

mi? g 8 ,\\\\\\\\\f v ,x WV A :E mf, @i m I w FRANK TYSON, F CANTQN, OHIO.

VALVE FOR BOTTLE-FILLING MACHINES.

specification of Letters Patent. Patented Apr. 20, 19175.

. Application led April 17, 1913. Serial No. 761,705.

T0 all whom it may concern 'Be it known that I, FRANK TYsoN, a citizen of the United States, residing in .Canv ton, Ohio, have invented certain Improvements in Valvesl for Bottle-Filling Machines, of which the following is a specification. My invention relates to machines for filling bottles with liquid, a 'common type of'v suchl machine being that employed for lling milk bottles.

One/object of my invention is to so construct the -valve mechanism which controls the filling of each bottle as to prevent the drip, which, in valves as non' constructed, usually follows the withdrawal of the bottle from beneath the valve.

A further object of my invention is to facilitate the application of the Valved filling 2o tube to the tank or its removal from 'the latter.

In the accompanying drawing-Figure 1 is la longitudinal sectional view of a valve for bottle filling Amachines constructed in accordance with my invention, and showing the valve in the open position which it assumes while the liquid is flowing into the bottle; Fig.. 2 is a similar view showing the valve in position to cut ofi" the further flow of liquid into the bottle; Fig. 3 is a like view showing the valve closed against its .f'seat; Fig. 4 is a horizontalY section on the line a-e, Fig. 1, and Fig. 5 is a horizontal section on the line b -b, Fig. 1.

In the drawing, 1 represents part of the bottom of a tank or vessel-for containing the liquid with which the bottles are to be filled, this portion of the tank having formed in it as many internally threaded openings as there are valves to be employed in connection with the tank. Each of these openings has screwed into it a threaded flange '2 at the top of a depending nipple 3 which projects below the bottom of the tank, the upper face of the flange 2 having projecting lugs 4 for the action ofv a wrench whereby said flange may bel screwed into or unscrewed from the threaded opening in the bottom of the tank.

Secured to and extending downwardly from the nipple 3 i's a tube 5 which has,

near its lower v end, lateralopeningsv 6 through which the fluid can escape, the lower end of the tube being provided with a screw plug 7 with inclined flange 8, constituting a seat for the valve hereinafter described. Passing through the center of the plug 7 1s an air vent tube9 which extends up into the tank. The lupper end of .this tube should be above the level of liquid in the tank.

Surrounding the tn be 5 and guided vertically thereupon is a valve 10`which fits so snugly to the tube 5 as to prevent any flow of air between them except through internal grooves or passages 5 formed in said valve, as shown in Fig. 5. These passages extend from top' to bottom of that portion of the Valve which is in contact. with the tube 5. The valve 10 has aprojectingflange 11 of less diameter than the flange 2 of the nipple and to the under side of said flange 11 is fitted a gasket l12 of rubber or other flexible material. The valve 10 has an upwardly projecting sleeve 13 which is guided upon the nipple 3, fits snugly thereto, and is, by preference, prevented from turning thereon, as for instance, by means of lugs 14 carried by the sleeve and engaging with vertical slots 15 formed lin the outer face of the nipple 3.

spring 16 which bears atthe bottom against the upper face of the flange 11 of the valve and at the top against the under face of the flange 2 of the nipple, this spring tending constantly to depress the valve and cause its countersunk lower end to seat upon the vtapering flange 8 of the plugA 7 at the lower end ofthe tube 5.

The operation of the valve4 is as follows, the normal position of the parts being that shown in Fig. 3, that is to say, with the valve 10 loccupying its lowermost position, closing lthe openings 6 in the tube 5 and bearing upon its seat on the vplug 7. The

bottle to be filled is inserted beneath the valve and then lifted, so that the mouth of the bottle comes into contact with the gasket 12' of the valve and isthereby sealed, continued upward movement of the bottle then causing the raising of the valve to the position` shown in Fig. 1, thus uncovering the openings 6 in thetube 5 and permitting the free flow of liquid .from said tube intothe bottle, the displaced air nding a ready vent through the tube 9, which isopen at the top. During `the lift of the valve the air contained in Vthe space 17 betweenthe lower end of lthe nipple 3 and the lower Apart of the valve, which fits snugly tothe tube 5, is

' forced out of said space and into the upper Surrounding the sleeve 13 is a coiled part of the bottlethrough the passages Just before the filling of the bottle has been completed the bottle is lowered and the valve descends with it so as to gradually close the openings 6 in the tube 5, and cut ofi' the How of liquid into the bottle by the time the valve reaches the position shown in Fig. 2. Downward movement of the valve with the bottle continues from the point shown in Fig. 2 toqthat shown in Fig. 3, when the valve finally closes against lts seat on the plug 7. During the movement from the osition shown in Fig. 1 to that shown in ig.

f 3 the gasket 12 still seals the mouth of rthe bottle and the nipple 3 acts as the piston of a pum ofV which the valve sleeve 13 constitutes t e cylinder, air being drawn from thel bottle through the passages 5a into the constantly increasing space 17 between the nipple and. valve wlth the result that any Vfoam bubbles which may have accumulated upon the top of the body of liquid in the .bottle will be eliminated. As the bottle continues to descend after the flow of milk into the same has been out off, as shown in Fig. 2, the pumping action continues and air is i lstill withdrawn from the bottle throughy the passages 5, hence a partial vacuum would be formed in the upper portion of the bottle if it were not for the inflow of air through the vent tube 9, and this action would take placeA even if there were no preliminary pumping action as above described. The in,

The tube 5 being secured to the nipple 3 and the valve 10 being hung upon said nipple, the entire structure can be readily handled as a unit and can be inserted through the tankinto its proper position by screwin the flange 2 of the nipple into the threaded opening in the bottom, of4 the tank intended'for its reception, or can be removed through the tank by reversing such procedure. l l .Ivclaim:

1.?, Thecombination, in a bottle filling niachine, of a illing' tube and a bottle-controlled valve for opening and closing the same, withmeans whereby the closing movement of the valve causesthe withdrawal of air from the upper portion ofthe bottle.

'2. The combination, in a bottle filling machine, of a filling tube, a vent tube, and a bottle-controlled lvalve for opening and closing, said filling tube, with means whereby, While the valve is closing the dischargeo en.- ing in .the filling tube, the movement o the valve causes the withdrawal of air from the bottle above the milk and consequently an indraft of air through the vent tube.

- 3. The combination, in a bottle filling machine, of a filling tube, a bottle controlled valve for opening and closing the same, said valve having a projecting sleeve, and a guidf ing nippletted to said sleeveso as to form a pump loi" which the sleeve is the cylinder and the nipple V,the piston, passages being formed between the filling tube and valve which provide communication between said pulmp cylinder and the lower end of the va ve.

In testimony whereof, have signed myname to this specification, in the presence of two subscribing witnesses.

FRANK TYSON.

Witnesses: KATE A. BEA'DLE,

HAMlLToN D. TURNER.

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