US2094524A - Evacuating machine - Google Patents

Description

Sept. 28, 1937.

G. H. BUSCH `EVACUMING MACHINE 2 Sheets-Sheet I Filed Dec. 28, 1936 INVENTOR ATTORNEY Sept. 28, 1937. G. H. BUSCH EVACUATING MACHINE Filed Dec. I 28, 19:56

2 Sheets-Sheet? a5 c/z "Jil Patented Sept. 28, 1937 UNITED STATES PATENT- oFFIcE 8 Claims.

The invention relates to an evacuating machineand more especially to a vacuum pump to beused in llingliquids into bottles or containers Without! overflow and also to evacuate electric light bulbs, radio vacuum tubes, neon tubes,`etc. The primary object ofthe invention is the provision of a machine'of this character, whereinithrou'ghpthe use of vanevacuating tube the air 1() lwthin a container,4 bottle orA the like may be readily 'evacuated so thatin the. filling of the container, bottle or the like with liquid the said liquid can bek dispensed therein Without the possibility of overflow and thus eliminating waste l5 `of 'theliquid Y Another object of the invention is the provi- -fsionnof a-machne of this character,. wherein a -movable carriage fhas tted therewith presser `Yrollers which are adaptedlto compress a rub-V 20 1rber evacuating tube on the. travel of the carriage `for--evacuating purposes to remove air from containers, bottles orV the like, the machineA in its 'i entirety beingof novel construction and the Vcarriageis -movably supported in a unique manner 25 'andwith the'result that the rollers in the rotaviii operation, readily and easily handled for evac- "uatingpurposes, strong, durable, and inexpen- A"'s'ive to manufacture'.A Y

With these'and other objects in View, the in- 351-vention consists inthe features `of construction, combination and arrangement of parts as will '-befhereinafter more fully described, illustrated Ejinthe accompanying drawings, which disclose "the preferred embodiment of the invention and 4I3-@pointed out Yin the claims hereunto appended.

AIn 'the accompanying drawings:

Figure 1 is a sideelevation of the machine con- 'structedfin accordance withv the invention show- *ingby -full lines a` portion of a liquid vat and v i dotted lines a bottle to be lled in association fthe'r'e'with; Y

Figure-2 is a fragmentary sectional view on the `ffline 2T-,2of Figure 1 looking in the Vdirection of Y*the arrows.` v 4 Figure is'a sectionalwview on the Aline 3-'3 of Figure llookingin the direction of the arrows.

if 4"vv is a. fragmentary sectional view on 5? the line-4'4'of Figure 3 looking in the direction Figure l'5isa'vertical `longitudinal sectional (ci. 22e- 116) view through the llingf and the machine. H Y.. A 7,

Figure 6 is a sectional Vview on thelln'e `I-,G of -Figure l looking in the direction of thearrows.

ySimilar reference characters indicate corresponding parts throughout thei several Qvlievvsin the drawings. i. .l I. AReferring to the drawingsin ,detaihithema-r ychineicomprises a base I0 omwhichisrcarriedl'a stand including a 'substantially rectangular shaped supporting frame; nl I; havinggtherein spaced'parallel longitudinally directed guidero'l's l2 constituting tracks. Movably supported upon the tracks constituted by the rods-.I2 ,is a. carriage. if, rl ,f

The' carriage comprises a chassis I3`sup'porting track rollers I4 which travel upon,the tracks within the frame II. Rising-.o from the chassis I3 of the carriage is ,anv upstanding vertical rack I5 having journaled therein .upperand lower.l presser rollers.v l'jand I"I,jrespectively, the axle I8 for-the lower roller being'xedly vjournalel in -the said rack I5 and secured to one end 'ofsaid axle is a rack gear I9 meshingzw-ith astationary toothed rack superposed horizontally above the frame III and supported by postsor uprights 2l which at their lower ends are suitably fixed to the said frame. The axle 22 of thegupper roller I6 is vertically adjustable in slots 23 provided in; the side members of the rack I5, there l. being adjustable cleats 24` carried by theseside `members to-limit the upward movement ofthe said axle 22 for the upper roller I6,

' Trained between therollers` is an evacuating relatively thick walled Arubbertube,25.whichis adapted to be compressed by the s aidg r,ollers I6 and I1 when the carriagegis.; moved,fon.v the tracks and thus aiording a suctionmedium. The tube 25 is held in supports 26 extended tupwardly from theframe II and Xedthereto in.k any suitable manner, these supports being adapted to hold the said tube relatively taut and .are located next to opposite ends thereof. o At one end of the frame Il is a bracket 2l carrying a depending cylindrical filling :andv evacuating head 284 having interiorly thereof a suction chamber 2.9 jfrom'which leadsjanoutlet suctionv nipple 3l]y having connection by-an elbow 3l with the tube 25at oneend thereof, the ,other end of the tube being open tothe atmosphere. Leading into the head 28 is a-,feed nipple 32 to which is connected a-lling tube 33 adaptedto Abe lowered into a liquid vat 34 to'e'xtend ,into the liquid below the. level thereof within Vthe vat evacuatihg head` of and this endoof the said tubeis fitted with agreturn check valve 35. Depending into the chamber 29 is a filling nozzle 36 which fits the filling passage 31 from the nipple 32 to the said nozzle 36. The chamber 29 in the head 28 opens centrally through the bottom end of the said head and suitably tting this open end of the chamber is a centering sleeve 38 to be accommodated within the open mouth of a bottle 39 to be lled while concentrically about the said sleeve 38 is a sponge rubber sealing cap or gasket 40 which seals the mouth of the bottle 39 when the same is pressed against said cap or gasket on the slight protruding of the sleeve 38 and nozzle 36 within said bottle mouth.

One of the rods I2 has adjustably fitted thereon a stop 4I which limits the movement of the carriage in one direction upon the tracks.

When it is desired to fill the bottle 39 with liquid within the Vat 34, the bottle is pressed against the cap or gasket 40 With the spout 36 slightly protruding into the mouth of said bottle and the sleeve 38 fitting within said mouth for the centering of the'bottle when the carriage, which isnormally close to the end of the tube 25 next tothe bracket 21, is moved, motion being imported thereto by the attachment of a hand crank or other power medium (not shown) to the end 42 of the axle I8 and thus the tube 25 will become compressed causing a suction interiorly thereof and in this fashion air will be evacuated from within the bottle 39 and the liquid from the vat 34 will be drawn into said bottle. The extent of movement of the carriage regulates the quantity of liquid to be drawn into the bottle 39 and thus by setting the stop 4I the said carriage can be stopped at a, determined locality and in this fashion avoiding any possibility of over-lling of the bottle or overflow from the same.

It is, of course, understood that-the carriage .may be moved either manually or through mechanical means, this being optional.

When the tube 25 is compressed under the action of the rollers I6 and I'I, a suction is set up in the tube so that the latter operates as an evacuating medium for evacuation within the bottle or the like 39 when the same is placed in position to be filled through the head 28 of the machine.

The carriage after evacuation operation is returned to normal position next to its end adjacent to the head 28 of the machine. On the unsealing of the bottle or the like 39 from the head 28 of the machine, the vacuum is broken and by the gear I9 meshing with the rack 20 there will be no pulling upon the tube 25 when' the carriage is in motion.'

What is claimed is:

1. Amachine of the character described comprising a stand, a carriage movably tted in said stand, presser rollers arranged in the carriage, a rack gear rotatable with one of the presser rollers, a'stationary rack in the stand and meshing with said rack gear, a compressible tube supported within the stand and trained between the rollers to be compressed thereby for effecting a suction interiorly of said tube, and a head supported by the stand and having independent lling and suction passages, the suction passage being in communication with the compressible tube.

2. A machine of the character described comprising a stand, a carriage movably fitted in said stand, presser rollers arranged in the carriage, a rack gear rotatable with one of the presser rollers, a stationary rack in the stand and meshing with sai-d rack gear, a compressible tube supported within the stand and trained between the rollers to be compressed thereby for effecting a suction interiorly of said tube, a head supported by the stand and having independent filling and suction passages, the suction passage being in communication with the compressible tube, and a supply conduit leading to the filling passage in said head.

3. A machine of the character described comprising a stand, a carriage movably tted in said stand, presser rollers arranged in the carriage,

a rack gear rotatable with one of the presser rollers, a stationary rack in the stand and meshing with said rack gear, a compressible tube supported within the stand and trained between the rollers to be compressed thereby for effecting a suction interiorly of said tube, a head supported by the stand and having independent filling and suction passages, the suction passage being in communication with the compressible tube, a'supply conduit leading to the filling passage in said head, and means adjustably arranged Vin the stand for limiting the movement of the carriage in one direction.. 1

4. A machine of the character described comprising a stand, a carriage. movably tted in said stand, presser rollers arranged in the carriage, a rack gear rotatable with one of the presserrollers, a stationary rack in the standA and meshing with said rack gear, a compressible tube supported Within the stand and trained between the rollers to be compressed thereby for effecting. a suction interiorly of said tube, a head supported by the stand and having independent filling and suction passages, the suction passage being in communication-with the compressible tube, a supply conduit leading to the lling passage in said'head, means adjustablyarranged in the stand for limiting the movement of the carriage in one direction, and a check return Valve associated with said conduit. Y Y f 5. A machineof the character described com,-

- prising a stand, a carriage movably tted in said stand, presser rollers arranged in the carriage, a rack gear rotatable with one of the presser rollers, a stationary rack in the stand and meshing with said rack gear, a compressible tube Vsupported within the stand and trained between the rollers to be compressed thereby for effecting a suction interiorly of said tube, a head supported by the stand and having independent filling and suction passages, the suction passage being in communication 'with the :compressible tube, a supply conduit" leading to the lling passage in said head, means adjustably arranged in Ythe stand for limiting the movement of the carriage in one direction, a check return valve associated with said conduit, and a sealing cap on the head for the sealing of a container when engaged therewith and in communication with the suction and filling passages of said head.

6. A machineof the character described comprising a stand, a carriage movably ttedin said stand, upper and lower presser rollers arranged in the carriage, the upper roller being adjustable, a rack gear rotatable with one of the presser rollers, a stationary rack inthe stand 'and meshing with said rack gear, a compressible tube supported within the stand and trained between the rollers to be compressed thereby for effectinga suction interiorly of said tube, a head supported by the stand and having independent filling and suction passages, the suction passage being in communication with the compressible tube, aVl`` supply conduit leading to the :ilingA passage in said head, means adjustably arrangedv in the stand for limiting the movement of the carriage in one direction, a check return valve associated with said conduit, a sealing cap on the head for the sealing of a container when engaged therewith and in communication with the suction and lling passages of said head, and means for limiting the adjustment of the uppermost presser l roller relative to the lowermost presser roller.

'1. A machine of the character described comprising a stand, a carriage movably fitted in said stand, upper andlower presser rollers arranged in the carriage, the upper roller being adjustable,

Y a rack gear rotatable with one of the presser rollers, a stationary rack in the stand and meshing with said rack gear, a compressible tube sup ported Within the stand and trained between the rollers to be compressed thereby for effecting a 2o suction interiorly of'said tube, a head supported by the stand and having independent lling and suction passages, the suction passage being in communication with the compressible tube, a supply conduit leading to the lling passage in 25 said head, means adjustably arranged in the stand for limiting the movement of the carriage in one direction, a check return valve associated lwith said conduit, a sealing cap on the head for' the sealing of a container when engaged there- 30 with and in communication with the suction and lling passages of said head,.means for limiting the adjustment ofthe' uppermost presser roller relative to the lowermost presser roller, and a rack on the carriage and having the presser rollers supported therein.

8. A machine of the character described com yprising a stand, a carriage movably iitted in said stand, upper and lower presser rollers arranged in the carriage, the upper roller being adjustable, a rack gear rotatable with one of the presser rollers, a stationary rack in the stand and meshing with said rack gear, a compressible tube supported within the stand and trained between the rollers to be compressed thereby for effecting a suction interiorly of said tube, a head supported by the stand and having independent filling and suction passages, the suction passage being in communication with the compressible tube, a supply conduit leading to the filling passage in said head, means adjustably arranged in the stand for limiting the movement of the carriage in one direction, a check return valve associated with said conduit, a sealing cap on the head for the sealing of a container when engaged therewith and in communication with the suction and filling passages of'said head, means for limiting the adjustment of the uppermost presser roller relative to the lowermost presser roller, a rack on the carriage and having the presser rollers supported therein, and a support for the head and carried by the stand.

GEORGE H. BUSCH.

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