US1289723A - Irrigator for medical, chemical, and other purposes. - Google Patents

Description

U. FRIEDEMANN & T. E. THOMPSON.

IRRIGATOR FOR MEDICAL, CHEMICAL, AND OTHER PURPOSES.

APPLICATION FILED JULY 29. I916.

1,289,723., Patented Dec. 31, 1918.

ULRICH FRIEDEMANN', OF HACKNEY, LONDON, AND THOMAS E. THOMPSON, OF'LONDON,

ENGLAND.

IRRIGATOR non MEnio'A-L, CHEMICAL, AND OTHER PURPOSES.

Application filed July 29,

To all whom it may concern:

Be it known that we, ULRICH FRIEDEMANN and THOMAS EDMUND THOMPSON, residing at 57 l avarino road, Hackney, London, N. 111., England, and 121 Rosebery avenue, London, E. 0., England, respectively, have invented certain new and useful Improvements in or Relating to Irrigators for Medi' purposes of the type in which the liquid is drawn up from a container or receptacle by means of an apparatus which when immersed in the liquid allows the latter to compress air contained in the apparatus and by a siphon like action to start the'flow of the liquid through the apparatus, which flow continues so long as the apparatus is in the liquid and until the container is emptied.

Apparatus of this kind has heretofore been constructed as a single element of glass or the like, the parts being sealed or perma' nently connected together and consisting of a central tube open at the bottom and the top with a bulb or casing'surrounding it and sealed to it at each end. From the top of the bulb or casing and forming a continuation of the'central tube is an extension to which a rubber or like tube connected to a nozzle or the like is attached. A small baglike receptacle or pocket is formed on the side of the extension for the purpose of containing when desired a pellet or tablet of medicament. A hole is formed at the bottom of the bulb or casing and another hole is formed in the inner central tube near its upper end inside the bulb In the apparatus as above described considerable difliculties have been experienced in p cleansing the interior owing toits construction in a non-separable single piece," and it is the object of the present invention to construct an'improved apparatus of the kind referred to which may be easily taken to pieces for the purpose of cleansing and readily assembled again in an airtight manner.

The invention will now be described in Specification of Letters Patent.

l atent'ed Dec.

1916. Serial No. 112,188.

connection with the accompanying drawings in which Figure 1. is a sectional elevation of the improved device, and

Fig. 2. is a similar view of a' modified form.

The bulb or casing may be made of aluminium, glass or other suitable material and in the form shown in Fig. 1 the bulb is formed with top and bottom pieces a and b internally threaded at 0 and d to engage threaded portions on a central tube e of metal, glass or the like. The central tube (2 extends through the top piece a and is formed with an enlargement f for securing it to a rubber or like tube. It is also provided with a screwed opening'g' at its side between its upper end'and the top piece a for detachably securing a bag-like 'recep of a cylinder 71 preferably of glass, forming the body of the bulb, a rubber or like washer or packing j being inserted in each recess for the ends of the cylinder 2' to bear against to form an airtight joint.

In assembling the parts, the top piece a. is first placed on the central tube c and screwed on to the upper enlarged screwed portion thereon. a rubber or other suitable joint being used if desired. The glass cylinder i is then passed over the central tube 6, and its upper end inserted in the recess h in the top piece a against the packingj therein. The bottom piece bis next screwed on to the lower screwed portion of the central tube 6 which is of slightly smaller diameter than the upper screwed portion to allow thetop piece a to pass over it, and is provided with suitable packing if required. The lower end of the glass cylinder 2' is inserted in the recess h in the bottom piece I) and when the latter is screwed up all the arts are secured in an airtight manner.

The bottom 'piece b is perforated at 7:: and the central tubec is provided with a hole Z in the usual manner.

In the modified form shown in Fig. 2 the top piece'is formed in one with the central tube 6 and with the cylinder 2, the bottom piece I) being secured to the latter in the manner above described. In this case the entire apparatus with the exception of the employed or the parts may be secured to gether by means of screwed metal or other unions engaging beads or fiangesiformed on the pieces, a packing ring being inserted between the beads.

" It is to be noted that in the construction shown in Fig. 2 the joint between the bottom piece]; and the upper part of the device may be situated at any convenient pointin the length thereof, for instance it may coincide with theposition of the joint between the cylindrical member 5 and the top piece a in Fig.1. v Q Q 7 When the central tube 6 or the bulb is made of opa que material a glass or other 7 transparent tube'may be inserted in the rubher tube leading-to the nozzle or the like in order that the flow of liquid through the apparatus may be observed.

V In operation the apnaratus'is immersed in the liquid so that the latter isabove the enlargement F, while the liquid contalner is placed in a position higher than that at which the nozzle has to be used. Liquid rises in the central tube 6 to a level equalto that in thereceptacle and alsgenters the bulb or casing through the perforation is in the bottom piece I). Liquid entering the latter compresses the air in the bulb, or'easing and owing to the head of liquid ex sting 1n the container the air is eventually forc'ed out through the holel causing the liquid above it to pass farther toward the nozzle while fresh liquid rises totake its place.

. By this means siphonic action may be. 'started'and the whole of the liquid be eventually'withdr'awn from the container, up the central tube '6 past the medicament which it absorbs, and throughthe tube to be dis- 1 charged through anysuitable form of nozzle.

-Wl1en' the apparatus is to' be used for chemical purposes, for-example in emptying bottles or other receptacles containing acid or otherliquid giving ofi deleteriousfumes,

. the "small bag-like receptacle abovereferred to need not if desired be provided.

It will be understood that the parts materialaccording to the purpose for which the irrigator is required and that the invena tion is not limited to the constructions above described, the essential feature of the in- Gopies of this patent maybe obtained for five cents each, by addressing the fGommissioner of Patents; 3

of the apparatus may beimade fro'm any. suitable vention being that the parts are made separable for cleansing purposes as distinguishedfrom known types of apparatus of this type y 2. An irrigator comprising a starter for a siphon, consisting of a cylinder, a central tube, top and bottom cups adapted to em- .brac'e said tube'and'being capable of retalning between them said cylinder, said tube being provided with a recess formed above theupper .of said cups for the reception of a medicated pellet.

3. An irrigator, comprising 'a'sta'rter for a siphon, consisting of a cylinder whose edges are formed with shoulders, a central tube formed with screw threads at'its upper and lower ends, top and bottom cups each provided with an internally screw threaded opening adapted to embrace the first'named screw threads, the outer edges of the cup members being formed with a" shoulder adapted to engage the shoulders formed on the edges of the cylinder, whereby to retain I edges 'of the cups the cylinder between them and suitable pack- 'siphon including a tube, a cylinder adapted .toenvelop suchtube andbeingconnected at e projects throughsuch opening, the upper its upper endthereto, a-Jcup-shaped member provided with an opening through its bottom adapted. to be positioned so that the tube 10o edgeof said cup engaging the; lowermost edgeof the cylinder so that an airtightjoint is formed, the cup-shap ed-member being provided with a second small opening near its base, the tube being providedwith an" opening formed below the point of'engaga.

the'upper end of-the former. i

.. In testimony whereof we afiix oursigna- Washington, D. G.

.ment of the cylinder with the-tube adjacent*

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