US1135834A - Hydraulic air-ejector for vacuum cleaning and other purposes. - Google Patents

Description

c. MORTON. HYDRAULIC AIR EJECTOR FOR VACUUM CLEANING AND OTHER PURPOSES.

APPLICATION FILED JAN. 9, I913- I Patented Apn 13, 1915.

has! f 3 SHEETS-SHEET 1.

C. MORTON. HYDRAULIC AIR EJECTOR FOR VACUUM CLEAf'HNG AND OTHER PURPGSES. APPLICATION FILED MN. 9. ms.

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C. MORTON.

HYDRAULIC AiR EJECTORFOR VACUUM CLEANiNG AND OTHER PURPOSES.

APPLICATION FILED JAN. 9, 1913.

CAMPBELL MORTON, OF GLASGOW, SCOTLAND.

HYDRAULIC AIR-EJECIOR FOR VACUUM CLEANING AND OTHER PURPOSES.

Application filed January 9, 1913.

To all whom it may concern:

Be it known that I, CAMPBELL MORTON, a subject oi the King of Great Britain and Ireland, and a resident of Glasgow, Scotland, have invented new and useful Improvements in Hydraulic Air-Ejectors for Vacuum Cleaning and other Purposes, of

which the following is a specification.

jects being acted on; also in many cases to enable the pressure water from ordinary house supply pipes to be used. In, such e ectors it has hitherto been known to cause a current of water derived from a main or pressure water, or supplied by pumping or other means, to flow down through a nozzle whereby it is sprayed and caused to impinge against the sides of a nozzle which is in communication with the pipe or vessel from which it is desired to exhaust the air, thence flowing off to a drain or like outlet through a trumpet mouthed pipe or nozzle.

In order that my said invention and the manner oi carrying same into effect or practice may be properly understood, I have hereunto appended three sheets of illustrativc drawings, in which Figure l is a sectional elevation of air ejector in which an annular air passage comn'lunicating with a series of deflecting nozzles are used, in combination with an adjustai'ile water jet tube, and Fig. 2 is a fragmentary sectional elevation of a modified form of my invention. Fig. 3 is a sectional elevation of an ejector in which the annular air 'iassage is dispensed with, and two single deflecting nozzles are used in combination with a jet tube with adjustable orifice and a discharge tube of alternately diminishing and increasing diameter discharging into a trap, while Fig. l is a plan. of the head of same. Fig. 5, is a sectional elevation of an ejector having a fixed jet tube and a series of deflecting nozzles each fitted with a dis charge tube of increasing and diminishing diameter. Fig. 6 is a sectional elevation of Specification of Letters Patent.

Patented Amt-i3, 1915.

Serial No. 741,011.

the upper part of an ejector showing an arrangement of cleaning plugs, and Fig. 7 is a sectional view to a larger scale showing how a plug may be constructed to act as a "valve. Fig. 8, is a sectional elevation of an ejector in which an adjustable rod is employed to regulate the flow of water through the jettube nozzle, and Fig. 9 is a plan thereof. Fig. 10 is a sectional elevation of the upper part of an ejector illustrating the use of an expanding and contracting nozzle,

and Fig. 11 is a sectional plan. on the line 12-12 in Fi g. 10. Fig. 12 is an elevation of the expanding and contracting nozzle.

Referring to these drawings :.In carry.-

ing this invention into efiect or practice ac cording to one modification, as illustrated by Fig. 1, the pressure water enters an upper cylindrical chamber 1, shown broken away at the upper end, into the lower end of which an annular boss or ring 2 is screwed or otherwise secured, said ring being vformed with a flange to which the lower part of the apparatus is secured. The ring 2 may however be made in one piece with the cylinder 1' in some cases. A jet tube 8 termed at its upper end for the admission. of fluid is screwed through the center of the ring 2 and is so ar'anged that it can be adjusted by screwing it up or down for the purpose to be described, or instead of screwing, it may be moved up and down through a stufiing box 5, as shown in Fig. 2. This tube 3 is formed at its lower end with a discharge passage 6 which is splayed or divergent downward so as to increase its width where the water leaves it,'0r as shown in Fig. 2 it may be contracted toward the lower,end instead. The pressure water may flow intothe upper cylinder 1 either by the top or by a lateral branch, not shown.

duit 8. N Y Within the annular wall and'forthe purand contains within it the trumpet mouth nozzle or eduction tube 16 leading off the water and dust, and which is connected in any suitable manner to the drains. The nozzles 12 to 15 are made of increasing diameter at their lower ends throughout the series, the widest being at the bottom and forming the upper part of the trumpet mouth nozzle 16 or it may be separate from same. The nozzles 12 to, 15 may be formed of simple conoidal shape, or they may be of conoidal form with a cylindrical lower part 17, as shown by Fig. 2, also by Fig. 8, which may be splayed outward at the discharge end, as indicated in Fig. 2. In order to regulate the amount of vacuum roduoed by this apparatus so that article of a tender nature, which would be damaged by the use of a strong vacuum, may be dealt with, the tube 3 in the upper cylinder 1 may be screwed downward so as to pass one or more of the conoidal nozzles, 12 to 15, and so discharge the water on' a diminished number of the nozzles and so lessen the vacuum produced, while maintaining the elliciency of the action.

Another method of regulating the amount of vacuilm consists in fitting a. rod 18, Fig. 8, with pointed end in a guide 19 in the upper cylinder 1, so that it can be moved up and down to increase or diminish the outlet orifice of-themozzle 6 discharging the prespressure water caused to flow down through sure water, otherwise the said rod 18 may be madeihollow', as shown by Fig. 10, and the it. The lower discharge nozzle leading to the drains may be formed of alternately expandingand diminishing sections 20 and 21,

1 .as'shown by Figs. 3 and 5, if found desirable,-

IVhere only one deflecting nozzle 12 is used, as shown, by way of example, by Fig. 8, I may, if desired, reverse the air and water inlets, when the quantity of water passing will be regulated by aising or lowering what I have called the jet-tube 3.

In the'modification illustrated by Figs. 3 and 4, two deflecting nozzles 12 and 13 are employed and the annular air passage shown in Fig. 1 beingdispensedwith, the air'and "(lust a re led by the duct 8 direct to the dcflccting 1 iczzles',' whence the-ini'xedwater air and dusth're discharged down to the'trap 22 through the pipe sections 20 and 21. Inthis the air suction.

this case, one below the other at some distance apart. The dust laden air is led to each by the duct 8 communicating with the nozzles by the openings 11. In this arrangement the jet tube 3 is shown as fixed, but an adjustable jet tube of any of the varieties m2? be employed instead.

ig. 6, is a sectional elevation of part of the upper end of an ejector, showing an" arrangement of screwed plugs 23 to 25, the removal of which enables the interior of the ejector head to be cleared of any obstruction lodging therein, by means of wires or the like. The plug 25, as illustrated by Fig. 7, may alsobe fitted with a valve 30 kept closed by the action of the vacuum against the pull of a regulating weight to be suspended to the ring 31 attached to the valve, until through an excess of vacuum or other cause the Water rises to the level of the plug when it will open to the atmosphere and break the vacuum or prevent the water rising higher so as to wet the interior of the shield 32 is provided to prevent the passing dust laden air clogging the valve.

As illustrated by Figs. 10 to 1,instead of using several nozzles of different sizes, I may use'one nozzle 12 diagonally split at opposite parts 34 and working on hinge pins 35, so arranged that the position of the jet tube shall govern the diameter of the outlet of the nozzle 12 by means of cam projections 36 on the tube actin on upward projections 37 on the nozzle. r the split nozzle may act automatically through the varying pressures, prevailing in the apparatus, or the amount of water passing through.

The angle of the splayed orifice being taken into account, raising and loweri g the jet-tube enables one to arrange so th tthe outer circle of spray of the jet, or any part of it, may strike exactly into the throat of the combining nozzle 12 or on any other part thereof.

What I' do claim as my invention and desire to secure by Letters Patent is:--

1. The combination, in an ejector, of a casing; a plurality of nozzles mounted therein in axial alinement; an air conduit comher tube being adjustable to cause the movement V of the discharge end thereof successively through the nozzles to vary .the intensity of 2. The combination in an ejector of a casv ing; a plurality ofnozzles in axial alimemunicating with said nozzles; and a jet tube for delivering Water-through the nozzles to suck air through said conduit, said tube being adjustable to cause movement of its discharge end successively through the nozzles to vary the'intensity of the air suction, and

having a divergent outlet for directing the 10 liquid through the nozzles. ment mounted therein; an air conduit com- I In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses. I CAMPBELL MORTON. Witnesses:

R. C. THOMSON, K. MHILAR.

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