US1413960A - Means for filling bottles - Google Patents

Description

H. F. BROADHURST.

MEANS FOR FILLING BOTTLES APPLICATION FILED 050,12, 1921.

1,413,96, Patented Apr. 25, 1922.

2 $HhETSSHEET I.

H. F. BROADHURST.

MEANS FOR FILLING BOTTLES.

APPLICATION FILED DEC. 12, I92].

Patented Apr. 25, 1922 2 SHLEI'S-SHEET 2.

- pressure. and is of the kind wherein filling oaraa sar r r Taetea.

' HERBERT FREDERICK BROADHURST, or LQNDON, ENGLAND.

' MEANS ron rrmme BOTTLES.

Application filed December 12, T921.

To all whom it may concern Be itknown that I. HERBERT FREDERICK BROADHURST. a subject of the King of Great Britain and Ireland, and a resident of London, England, have invented a certain new and useful Improvement in Means for F illing Bottles. of which the following is a specification. I,

This invention relates to filling bottles, tins, or other receptacles by difierence of has been proposed to employ a nozzle havmg two tubes adapted to pass into the neck of the bottle and sealed air-tight thereto by a soft washer, and a connection adapted to,

be opened from the atmosphere. after the bottle is filled. into one of the tubes. preterably-the liquid conduit. This connection admits air to the liquid stream when the nozzle and the bottle are being separated. so that the liquid below this connection to the atmosphere or between it and the bottle will flow into the bottle. 'ith this-arrangement, the bottle is first sealed and the atmospheric connection closed to establish the How of liquid under suction into thebottle, and when the bottle is full and the filling nozzle raised. parting the column of liquid by the admission of air through the atmospheric connection must allow the pipes passing-through the neck of the bottle to drip when the nozzle is raised. because the whole of the liquid in the two tubes forming the nozzle has to drip out by gravity only under thesmall head due to the length'of the nozzle only. For a clear understanding of the invention. reference is to be had to the following description and accompanying sheets of drawings, which illustrate a practical embodiment of the means or apparatus emploved, and wherein igure 1 is'a side view of said apparatus.

Figure 2 is an end view thepeof.

Figure 3 is an underside plan view.

Figure l. is a vertical sectional view illustrative of the application of the said invention.

Like letters of reference indicate corresponding parts in the several figures.

According to the present invention, use is Specification 0f LetterQPatent.

Patented Apr. 25, 1922. Serial no. 521,537. r

made ofthree separate tubes all communicatmg with-the interior of the bottle, viz vacuum, suction and breaker pipes. v The purposejof the vacuum pipe is to withdraw air from, the bottle.

The purpose of the suction pipe is to conduct liquid from thesupply tank to the bottle. The purpose of the breaker pipe is to admit air to the interior of the bottle after the vacuum is shut ofl? when the bottle is filled and so break the vacuum. correct the level and drain otf' both the vacuum and g pipes before the nozzle is raised in the-bottle. I In carrying out the invention, and referring first to Figures 1 to 3. the apparatus consists of a head (I provided with a nearly horizontally disposed filling tube 6 which terminates in a vertically disposed nozzle 0 bottle to the level to which said bottle is to be filled. i Besides this. and nearly the' same length, is a small tulfle (i. termed the vacuum tube. and also.another small. tithe c. termed the breaker tubeawhic'h just reaches into the neck of the bottle. Bound these tubes'c, a, 6, 1s arranged a soft washer f. of india-rubber or any suitable material. t6 make an airtight joint on the top of the bottle.

The filling tube-'b is carried in its nearly horizontal position until clearof the bottle.

and then continues as a suction pipe 9 down wardly into a supply tank. which i situated at a' lower level than the bottle or bottles to be-filled. the vacuum tube (1 being connected up toa pump by which as much of the atmospheric pressure as may be required can be removed from the bottle or the like.

The action is as follows :The nozzle of the filling pipe I) is inserted into the neck 72.

of the bottle 2'. as in Figure 4. washer f seating on the mouth of said bottle, which is supported in any suitable manner. The breaker tube e is closed to the atmosphere, i. e.. the

adapted to be inserted into the neck of a air lock. by any suitable arrangement of valve, notshown on the drawings. The pump is then set going, and. through the vacuum tube a, removes pressure from inside the bottle 2' and also from the filler tube 12,

causing liquid 'from the'supply tank to rise in the suction pipe 9 and to run through the filling tube 2) into the bottle.

then the level of the liquid reaches the end of the vacuum tube d, no more am can be withdrawn from the bottle, and a small quantityof liquid is drawn up by and into the vacuum tube at. The 'vacuum tube 03 is then shut off from the pump by any suitable arrangement of valve, such for example as shown at as, but located some distance away from the nozzle, and the breaker tube 6 opened to the atmosphere by valve 3 break-' mg the vacuum in the neck of the bottle, with the result that the column of liquid in the suction. pipe falls back into the supply tank, drawing back any slight excess of liquid in the neck of the bottle and all the liquid in the 'filli'ngtube, b and nozzle 0, leaving the level of liquid in the bottle ex- I actly at the level of the bottom of the'nozzle of the filling tube, at the same time any liquid which has enteredthe vacuum tube is drawn towards the pump, and may, if de-' sirable, be trapped and removed in any suit able manner, so that when the nozzle is lifted out of the neck of the bottle there is no drip and the bottle i filled cleanly to an exact level.

Any number of bottles can be connected to for a number of nozzles, i. e. filling tubes,

' but it is preferably to have a suction tube for each, so that each bottle is .syphoned oft to a level of its filling tube, and this tube itself emptied by an independent column of lquid. i J

A pressure below atmosphere in the bottles need not be employed, as it is obvious that the apparatus works by difference ofpre'ssures, and both the bottle pressure and the supply pressure may be above the atmosphere, so that this apparatus can be used for bottling gaseous liquids, which have to be filled against a counter-pressure.

In this case the liquid'is contained in a reservoir, at pressure, and may be arranged above or below the bottles, and is suitably controlled.

The action is as follows :When the nozzles are in the bottles, counter-pressure, equal to the pressure in the reservoir, is admitted through. the breaker tube. The liquid from the reservoir is turned on, the breaker tubes closed, and then the counter-pressure lowered by means of the vacuum tube until the liquid flows into the bottles up to the end of the vacuum tubes. When counter-pressure equal to the reservoir, if the reservoir is situated belowthe bottles, or above the pressure in the reservoir if the reservoir is. above the-bottles, is turned on again throughthe breaker tubes, the liquid is driven back out of the nozzles again and into the suction tubes, leaving the bottles filled up to the level of the filling nozzles.

I claim 'J 1. A device for filling bottles including a filling head having a filler nozzle provided with a sealing gasket, a suction pipe communicating with the filling nozzle, a vacuum pipe also carried by the head and having its open. end disposed adjacent the filler nozzle, and abreaker pipe connected with the atmosphere and having an open end located at a point abovethe outlet end of the vacuum pipe. 2. A bottle filling device including a filling head carrying a filler nozzle, a suction pipe connected with the source of material to be bottled and comniunicating with the filler-nozzle, and vacuum and breaker tubes carried with the filler nozzle and the latter being connected with the atmosphere, and a sealing gasket surroundingthe filler nozzle and tubes.

3. A bottle filling device including a filling head carrying .a nozzle unit, said nozzle unitincluding a filler tube in communication with the source of material to be bottled and vacuum and breaker tubes, the latter being connected with the atmosphere and manually controlled "alves for said vacuum and breaker tubes. p

In testimony whereof I have aflixed my signature.

" HERBERT lFREDlERlICK BROADHURST.

Images