US1388854A - Means for clearing service-pipes or ejecting liquids - Google Patents

Description

II. L. DEZLNDGIIF.

MEANS FUR CLEARING SERVICE PIPES 0R EJECTlNG-LIQUIDS.

APPLICATION FILED IAN.26, 1920.

1,388,854. Patented Aug. 301,119.21.

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PATENT eprice.

RICHARD L. DEZENDORF, OFRICHMOND HILL, NEW YORK.

MEANS -non. CLEARING sRvIcE-P11=Es 0R EJECTING LIdUIDs.

Specification of Letters Patent. Patented Allg'. 30, 1921.

Applicatiqn med-January 26, 1920. Serial No. 354,301.

Y ZO all (wlw/m, t may concer/n:

Be itknown that I, RICHARD L. DEzEN- DORF, a citizen of the United States, residing at Richmond Hill, county of Queens,-State of New York, have invented a certain new and useful Improvement in Means for Clearing Service-Pipes or Ejecting Liquids, of which the following is a full, clear, and exact description.

My invention relates to means for clearing service pipes or for ejecting liquid and has forits object to provide a simple and eilective means for ej ecting from a container gas orliquid at a high pressure by the ignition of an lexplosive charge. It further has for its object to provide a combustion cham- 'ber` for the consumption ofthe ignited charge and a simple breech mechanismremovable for inserting the charge.

The following is -a description of an embodiment of my invention, reference being 4had to the accompanying drawings, in

Iparatus;

Fig. v5 shows an improved nozzle and chisel forming part of my invention and within a vservice pipe;

Fig. .6 is a detail of an ordinary vnozzle which may be used in my apparatus, and Fig. 7 is a detail of a check valve used in embodying my invention in its preferred form.

Referring more particularly to the drawings, l, 2 are two pipe sections connected together by couplings 3 and 4 sov as to form a U-shaped chamber for containing liquid. 5 is a discharge pipe leading therefrom having thereon a union coupling 6 so as to permit the chamber formed by the parts 1 to 4 and the pressure-producing devices carried 4 l therebyto be angularly adjusted relatively to the part 5, as may be necessary when the device is usedin cramped places. 7 is a fill-v ing an expansion chamber, and suitable coupllngs 1s a combustion chamber l1 held Within a housing 12 which is closed by a plug 13. This combustion chamber has on 1ts outer end a cap 14 which can be removed for kcleansing purposes upon the removal of the plug 13. Connected to the lower end of the explosion-chamber is a coupling 15 to which is secured a housing 16 on the lower end o f which is screwed a breech block 17 carrying a ring pin 18 normally pressed outwardby a spring 19, its outward movement being limited by a flange 20. 21 is al firing hammer pivotedl at 22 and actuated by a sprmg 23 so that by pulling backward the hammer and releasing it a blow is delivered to the firing pin. In advance of the firing pin is a cartridge holding chamber 24 screwed into the coupling 15 and adapted to receive a cartridge 25 which is adapted to be discharged by the action of hammer 21 upon the firing pin 18; The cartridge contains at its rear end a firing charge powder and in its front end a roll of nitro-cellulose which, from its charac er, burns comparatively slowlyqbut sulicie tly rapid to quickly sure, which is relied upon for ejecting the liquid. The combustion chamber is provided with orifices 26 somewhat removed from its upper end. When the cartridge is discharged the nitro-cellulose lodges in the upper end of the combustion chamber and having been ignited by the powder charge continues to burn, the gases being d1scharged through the ports 26 and passing to the liquid container.. These gases produce a heavy pressure upon the top v`of the liquid in the container formed by the parts 1 to 4 and eject that liquid at a rapid rate through the nozzle 5.

When the device is used to clean service pipes it is connected to the head 27 of a service connection, as shown in Fig. i2, ,a tubular extension v28 being provided which extends for a considerable distance into the service pipe 29 until it reaches the obstruction therein. If the obstruction is such that it can not lbe blown forward the nozzle shown in Fig. -5 is used, which is provided with 'a chisel 30, whereby the obstruction can, if necessary, be broken up to some eX- tent and worked backward until some por-` tion of it is behind the rearwardly discharginglnozzle 31. This rearwardly discharging produce a large volume of gas-under'presnozzle is provided' with rearwardly opening orifices 32, which, when the liquid discharged through the pipe 5A discharges backwardly through the openings 32, tends to carry the dislodged material back toward the head 27 of the service pipe. With this arrangement by using one or more discharges of liquid from `the liquid container accumulations in the service pipev can be forced back to the head 27 and removed therefrom.`

When the obstruction is of such a nature that it can be blown forward into the main,. an ordinary nozzle such as indicated in Fig.'

restored or increased after the pressure due to the firstfexplosion has become reduced. Inv

this modification is the container having a discharge vpipe 51 leading to the bottom thereof so that its lower end is below the liquid to be discharged; 52, `52 are. two cartridge receiving and firing devices such vas shown in Figs. l and 2; 453 .is a sealing cap and 54 is a check valve such as shown at 9 and in Fig. 7. These devices are connected to the liquid container.- 50 and, if' not providedwith discharging hammers similar tof` 21, for actuating their ri-ng pins, the ring pins may be actuated by an ordinary ham mer or mallet of suitable size. This form 'is adapted to discharge al larger quantity of 1i uid. v

he apparatus shown in Figs.. l and 2 can` be used without a liquid lforl clearing out somestoppages in service pipes, the pressure. and heat of the gas developed being sufficient for that purpose. Where liquid is not usedthe`liquid container is not-necessary'.l

The cartridge chamber 24 extends outi ward so that when the breech 17 is removed flamin the cartridge shell is accessible and easily removed. l'

When used for clearing service4 pi es the liquid `used the container is pre erablyalcohol, or kerosene or a mixture dependingv on conditions. When! used for ejecting a stream ofA liquid, .known as liquid fire, a cohol or otherv suitable inflammable liquid is used.

A As will be evident to those Skilled in the art2 my in vention permits of various modifications without departing from lthe spirit thereof or the scope of the appended claims.

What I claim is: l;

'1. In alil apparatus for ejectingv li nids,

the combination of a container, a disc arge pipe leading therefrom, an explosion cham' firing ber connected Ato the upper portion of said container, and means for igniting an explosive charge within said explosion chamber.

2. In an apparatus for -ejecting liquids, the combination of a container, a discharge pipe leading,4 therefrom, an explosion chamber 'connectedV to the upper portion of said container,mean`s for igniting an, explosive charge within said explosion chamber, and a combustion chamber in line with said explosion chamber..

3. In an apparatus for ejecting liquids,v

the combination of a container, a discharge pipe leadingv therefrom, an explosion chambei connected to the upper portion of said container, means .for igniting an explosive charge within saidexplosion chamber, said explosion chamber being adapted to' hold aA cartridge, a `breech block removable for the insertion of said cartridge, and afiring pin in said breech block.

4; In an apparatus for ejecting liquids, the combi-nationof a container, a discharge pipe leading therefrom, an explosion chamber connected to the upper portion of said container, means for igniting an explosive charge within said explosion chamber, la filling tube for introducing liquid into said container, anda check valvein said filling tube. g

-5LIn an apparatus for ejecting liquids, the combination of a container, a discharge pipe leading therefrom, a plurality of explopipeleadi'ng therefrom, an explosion chamber connected to the upperportion of said container, means for ignitin an explosive charge within said explosionc amber, an extension connected to said discharge pipe and adapted to entera as service pi e, anda rearwardlydischarging nozzle on t e end of said extension. A

` 7 An apparatus 'for clearin service pi es comprising an explosion cham er, means or a charge therein, and means for con-v necting the. explosion chamber to the service pipe .to be cleared, said means- [comprising an exv ansion chamber. Y

8. n apparatus for clearin comprising an explosion chamen'means or firinga charge therein, means for connecting the lexplosion chamber to the service pipe to be cleared'comprising a discharge pipe RICHARD L. DEzENDoaF.

service pi s and an extension `from said pipe adapted to i

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