US1206126A - Vacuum-generator. - Google Patents

Description

J. A. NHTSCH.

VACUUM GENERATOR.

APPLICATION FILED N0v.16. 1911.

1,206,1 26. m6111611 Nov. 28, 1916.

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speeication of Letters Patent. Patented Nov. 28, 19,16.

Application filed. November 16, 1911. Serial No. 660,657.

To. all whom t may concern.' Y

Be it known thatv I, JOHN A. Mrrsen, a citizen of the United States, and a resident of Mattapan, Boston, inthe county of 5 Suoll; and State of Massachusetts, have invented certain new and useful Improvements Yin Vacuum-Generators, ofwhich the following is a specification.

This invention relates to apparatus for causing a fluidV to flow by means ofl the velocity of another fluid escaping from ay contracted nozzle, and the invention has particular reference to mechanism of the ejector type adapted to massage and syringe purposes, or for Ventilating purposes, or the removal of odors, gases, moist air or dust7 or the cleaning` of fabrics; in fact, wherever it is desired to variablyv control the force of the evhaust7 or to reverse the direction of flow through the pipe connecting with the chamber around the jet nozzle.

One of the objects of the invention is to provide an apparatus of this character having means whereby the location of the seal which is necessary to the effective operation of the ejector'will always be at a fixed point relatively to the ejector nozzle regardless of thecamount of` pressure orV velocity of the Vactuating Vflow through said nozzle.

Another object is the provision of an improved apparatus Vof this type having means for regulating or varying the effect obtained from a Xed or certain velocity of flow ofthe actuating fluid.

To these ends, the invention consists in the connection and combination of parts substantially las herein described and claimed.

Of the accompanying drawings, Figure l represents a vertical section through my improved apparatus in one of its embodiments; Fig. 2 represents a section on line 2 2 of Fig. l, with the adjustable member of the outlet in horizontal position; Figs. 3 and 4 represent a section on lille 3 4 of Fig. 2, the dischargeslot beingclosed in Fig. 3V and open inFig. 4; Figpis a plan view, partly broken out, ofthe outer end portion of the adjustable terminal; Fig.. 6 represents a sectionon line 6-6 .of Fig. 51;-F-ig. 7 is a view similar to a portion of'Fig. l, illustrating a modification; Fg is 'a view Srn1n`V to Fiel l, illus.-

vention; Figs. 9, l0, l1 and l2 are detail views of appliances adapted to enable the' vacuum generator to be put to various uses. Similar reference characters indicate the same or similar parts in all of the views.

Referring first to Figs. l to 6 inclusive,

a block or carrier 20, of suitable material such as hard rubber, holds the partsof the Y apparatus in their relative positions forV useY so that they cannot be broken apart` orV their operative positions disturbed,4 even Whn subjected to rather rough .handling Such Vas stand, basin-or sinkand connected up to a water faucet. Thenozzle 2l at'the inner end of a tube l2 2 is secured, as vby. screwy threading, in a boring ofthe bloclg,` said tube 22y being adapted'to be connected Vbya flexible hose or pipe 23 to a water faucet, The space in the boring aroundthe nozzle provides a chamber 2tlwith which the air inlet passage 25 connects. By means of a short pipe -section 26 and a flexible pipe or hose ,27 ,i the air inlet may be connected to massage or irrigating appliances such as shown in Figs. 9, 10, A`11 and 12 or to other terminals acordng to the use to which the apparatus isto be put.

elow the nozzle 2l is a suitableV combining tube 28 and below the latter is a chamber 2,9 with which a lateral passage 30 communicates at a point above the end or bottom of said chamber 29 so that the twofluids (the actuatingfluid andthe iIl- Y 1 duced fluid) have their course thoroughly broken up. To distinguish thev chamber 29 from others, I refer to it the vortex chamber because init the lluids have a whirling motion vthat so completely intermingles the two' fluids that they @an notY lose their combination. And-at this Xedk is liable to occur when placed in'awashthe point of'nal discharge of the combinedV 'Y fluds- In 'other Wards it forms asealt Prevent the lefetfof eingehen-Pressure .power-@ i the'eiectcr. Y 1

A swivel tube 31, having a flange 32 by means of which a coupling 33 connects it to the block 20, is provided with a lateral nipple 34 (Fig. 2) on which is fixedly mounted a tube 35. A tube 36 is rotatively mounted on the tube 35 and said tubes are formed with longitudinal slots 37 and 38 respectively, said slots being adapted to register when full and free escape is desired. A disk 39 closes the end of tube 35 and has a lug or finger piece 40. The rotatable tube 36 has two finger pieces 41, 42, preferably shorter than the finger piece 40. By grasping the linger piece 40 and one or the other of the finger pieces 41, 42, the outer tube can be rotated to open or close the escape passage through the slots, or the outer tube can be left with said passage partially open. I/Vhen it is desired to retard or shut of the discharge through the slots 37, 38, of the terminal member, the operator simply presses the finger piece 41 toward, or to, the position shown in Figs. 1 and 3. As the escape opening through the slots is contracted, it of course, follows that the flow is retarded and the induced current is reduced to lesser force. When the escape opening is closed, all ejector action ceases and then the water or actuating fluid passes up through pipes 26 and 27. This enables the apparatus to be employed for such uses as internal irrigation. The closing of the escape opening as just explained, causes a reversal of the flow through the passage 26, 27 of the ejector apparatus. For instance, by connecting such an implement as shown at 66 in Fig. 12 to the hose 27, then when the escape opening through slots 37, 38 is closed, fluid entering through pipe 23 will be conducted to the stomach or other organ to be treated. Then by actuating the finger piece 42 to the position shown in Fig. 4, the escape passage will open, and the apparatus will then immediately cause the withdrawal of the injected uid. In other words, by the construction which enables a quick reversal of flow to be ei'fected through the passage 26, 27, a Huid can be forced into the stomach or other organ to be treated, through said passage, by simply closing the escape or outlet, and then upon opening the latter the fluid which was so forced into the organ will be withdrawn, due to the reversal of the flow through said passage.

The outer tube may be set in an intermediate position to leave the escape passage partially open if the pressure of the actuating fluid is greater than needed for the purpose to which the apparatus is being put. Such pressure has no effect upon the tubes'to tend to either enlarge or reduce the escape passage.

The object of swiveling the trap outlet or terminal member is to enable it to be given a horizontal position, or a vertical position at right angles to the position shown by Fig. 2, or an intermediate position, to regulate the induced flow through passageway 25 if desired, according to different degrees of pressure of the actuating iow through nozzle 21. And said member aids in producing the seal below the combining tube 28. It is swung down for light pressures and up for high pressures. When swung up, the escape opening through the slots is vertically elongated so that the level of the combined fluids in this adjustable terminal member of the trap will automatically vary in height according to the volume entering said member. A small volume will result in the level being only slightly above the lower end of the slots. If the volume increases, the level will rise, but the escape will be freer because of the elongation of the slots. More uid will escape as the level rises. But at all times, regardless of variations in volume, the seal will be preserved. The escape can be restricted at any time by'partial rotation of the outer tube.

The slotted escape opening takes care of variable pressures without affecting the seal. If the outlet were adapted only for a given pressure or volume, then excess pressure of actuating uid would tend to convert the pressure into a backward one through the passage 25.

In Fig. 7 I illustrate a slightly modified form of swiveled connection for the tube 31, said tube simply having a screw-threaded inner end 312L tting a threaded opening in block 20.

In Fig. 8, the carrier is shown as a circular block 20a, in which is mounted the nozzle 21a and tube 22a, a chamber 24* being located between the nozzle and the combining tube 28a'. The passage 25a has an inlet pipe 26a mounted in it. The block also has a chamber 25b closed at its outer end by a plug 25C. Mounted on the tube 28a is a block 29b having a vortex chamber 29a which communicates with a lateral pipe 30a. On the latter lis secured a nipple 35a, between which and a cap 35b are the slotted tubes 35, 36. This structure is similar in operation to that shown in Figs. 1 and 2 excepting that the terminal outlet member can not be swung up parallel with the nozzle. The result, obtained by a vertical positioning of the outlet member, however, can be reached by allowing the apparatus to take a position with the nozzle horizontal and the tubes 35, 36 upright.

Fig. 9 shows a pipe or short tube 49 adapted to be connected to the opposite end of hose 27 from that which is secured to pipe 26, said tube 49 carrying a massage implement 50 having a flesh manipulating slot 51. Y In Fig. 10 a similar tube 49 is shown, said tube having a massage implement 53 formed with a cup-shaped recess 54 communicating with tube 49 by a passage 55. An aperture 56 communicating with passage 55 may be alternately stopped up and opened by the finger of the user to cause an intermittent manipulation of the iesh against which the cup 54 is pressed. The aperture 56 may be closed by a plug 57.

In Fig. l1, the tube 49 carries a massage implement 60 having an aperture 61 extending to a cup-shaped recess 62, over which is removably secured a cap 63 having apertures 64. Manipulation of a plurality of small surfaces of the skin may be eected with the cap in place, and of a larger area when the cap is removed.

I claim 1. An apparatus of the character described, comprising an ejector' having a terminal member including inner and outer tubes having slots adapted to register, one of said tubes being rotatable relatively to the other.

2. An apparatus of the character described, comprising an ejector having a terminal member including inner and outer tubes having slots adapted toregister one of said tubes being rotatable relatively to the other, and means whereby the tubes may be held with their slots registering with each other. c

3. An apparatus of the character described, comprising a block, an ejector nozzle therein, conduits in said block for an actuating fluid and an induced iiuid, an. i

let leading from said chamber, said outlet.y

being closable to cause a reversal of flow through the pipe and passage leading to said chamber.

In testimony whereof I have aiiXed my signature in presence of two witnesses.

JOHN A. MITSCH. 1Witnesses: h

A. W. HARRISON, J. M. MURPHY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. Y Y

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