US876566A - Tube and flue cleaner. - Google Patents

Description

FRANZ HEINRICH LEHNERT, OF DRESDEN-PLAUEN, GERMANY.

TUBE AND FLUE CLEANER.

Specification of Letters Patent.

Patented Jaa. 14, reos.

Application sied may 2.1907. sain No. 371.468.

To all whom it ma concern:

Be it known t at I, FRANZ HEINRIQH LEHNERT, a subject of the Emperor of Austrie-Hun ary, residing at Dresden-Plauen, Saxony, erman Em ire, have invented certain new and useful in roveinents in Tube and Flue Cleaners, of W ich the following is a specification,

My invention relates to an implement for cleaning boiler fines, pipes and tubes of various kinds, of that class in which an elastic device fits tightly against the Wall of the pipe being cleaned, while a cleaning tool is driven by means of aturbineor other motor mounted in a casing.

My invention consists in the provision` of an elastic shell, washer, or sleeve between the housingof the turbine or driving device and a basket of flat springs or the like, the

said washer or sleeve fi ling, after the manner of a packing, the space between the turbine housing and the walls of the pi e orl tubev and thus insuring the passage ol` t e ressure agent, to drive the motor, through the iousing.

To permit ofvariationpi` the diameter oi the basket the springsl of which it is constructed are connected only at one end to the 'turbine housing, while the other end receives suitable guidance.

The basket may be connected with appropriate means whereby when the cleaner is Withdrawn from the pipe or tube by a guide line or rope, the basket, together with the packing, collapses.

Three forms of construction of my iinproved pipe cleaner are illustrated in the accompanying drawing:

Figure 1 is anelevation and part section showing the first form located in a pipe. Fig.

2 is a similar view of a modification in which the spring basket can be collapsed by drawing upon the 'guide ro ie, Fig. 3 is a like view of a second inodi ication, in which the packing is of shallow dished iorin instead ol' the sleeve form oi Figs. 1 and 2 and is secured at the rear end of the housing.

Referring more partieularl f to Fig. l, the pipe cleaner consists of a shaiit 4 upon which 1s rotatably mounted the driving device 1 provided with buckets or blades and housed in the casing 2, which is rigidly secured to the Shaft 4. The cutter head 3 is ixed in the driving device. At the rear end ol the shalt 4 there is a swivel loop or the like 5 to which a guide rope can be attached. To enable `also enables the cleaner to cial disk 1G mounted on the cleaning of pipes of different diameters, or of piping in which there are internal prominences, such,.for instance, as the plu s of cocks, or in which there are recesses o one kind or another, a packing-sleeve or washer 6 of elastic material, such as rubber or leather, is secured to the turbine housing 2.

'7 are flat springs assembled around the packing sleeve 6 and attached to the housing 2. rFhe assemblage oi springs constitutes a basket toprotect the packin sleeve 6 and e withdrawn from the pipe. Each spring is furnished with a slot at its rear end, through which passes a pin 8, screwed into the housing 2. The latter is provided with peripheral apertures 10 to permit any excess of the ressure agent and any dirt which may fo ow the cleaner and lodge between packing sleeve and. housing to pass through the implement, whereby the danger o'lE the im lenient becoming choked in the ipe eitherlliy too great outward pressure of t ie pressure agent upon the packing and springs or by accumulation of matter in the packing sleeve, is obviated.

ln ,the modiication shown in Fig. 2 the spring basket 7 and packing o can be collapsed by pulling the guide rope of the implement. For this purpose the shaft 4 is threaded at the rear end to receive a nut 1].,

behind which is a-sliding disk 12 connected with the loop 5. 'lhe latter bears against a disk 14 between which and the hea( of the shaft 4 there is a coiled spring 15. The disk 12 andthe various springs 7 are connected with each other by wire ropes 1.3 or the like, the front ends ol the springs being hinged to the housing. ln Fig. a ring is shown, pilslie l.`o\'ei the housing` L), in. order to den crease the resiliency ol' the packing (i and the spring basket 7. This ring Si may be fui'- nished with holes corresponding with the aperturcs 1() in the housing 2, so that by rotating thc ring thel apertures l0 may be more or less closcdl ln this vmanner the pressure acting upon the cleaner can be very readily regulated, since the largerthe passage afl'orded by the apertures 10, the greater the quantity of the pressure agent that will pass through the implement without doing work. ln theI modification shown in Fig. 3, the iiacking is ol dish forni and secured at the back ofithe housing 2 and the rear ends oi the springs 7 receive guidance from a speshaft 4.

.and the lcutter head rotated.

ine operation of the pipe cleaner is as follows z-After the implement has been introduced into the pipe, it is driven forward by` by the sprin basket 7. Since there is a perfect joint t eentire quantity'of water is utilized, there being no waste. Should the pressure be too great, a portion of the. pressure agent will pass through the apertures 10 in the housing 2 can be opened to a greater ,or less extent by rotation of thering 9,.so

that a portion of the pressure agent passes throughthe cleaner without doing useful,V Ywork. On the cleaner being withdrawn from the .pipe for any reason, the springs 7 will prevent the packing from being turned outside in, whereby the implement would become jammed in the pipe. In the construction shown in Fig. 2 the pull onwthe rope' rcauses collapse of basket and packlng, smce the spring 15 yields and permits the swivel loop 5 and disk 12.to be drawn back, where- Isurrounding the said elastic by,l again, the springs 7, connected with the disk'12 are drawn down. The nut 11 serves as stop for the disk 12 and by means of it the maximum diameter of the packing can 'be'v re ulated.

at I claim is:

1. In a -pipe cleaner, in combination, a shaft; a housing secured thereto; a rotary tool'driving device mounted in the housing; an elastic acking located outsidethe housing and a apted to bear against the wall of the pipe beingr cleaned; and a Springbasket packing; substantially as described.;

2. `In a pipe cleaner, in combination, a shaft; a housing secured thereto; a rotary tool driving device mounted in the housing; an'elastic acking located outside the housing and a apted to close the: spacebetween the housing and the wall oi 'the pipe being in presencp of two witnesses.

cleaned; springs surrounding said packing andsecured at their iront ends to the housing-and having a limited radial moyement at their rear ends; substantially as described.

3. In a pipe cleaner, in combination, a

.avesse ft. In a pipe cleaner, in combination, a.

shaft;a housing presenting peripheral rforations secured thereto; a'rotary tool laving device mounted in the housing; an elastic packi located outside the housing and adapte to close the space between the housing and the wall of the pipe being cleaned; a spring basket surrounding said packing and 4an annular rotary member 'located between said housing and packing and presenting perforations corresponding with those in the housing, whereby'the flow of the pressure agent through said latter perforations canbe regulated; substantially as described. y

5. n a pipe cleaner, in combination, a. shaft; a housing securedthereto; a rotary tool driving device mounted in the housing; an elastic packin and adapted to close the space between the housing and the wall of the pipe being cleaned an' assemblage of s rings surrounding saidv acking and secure at the front end tothe ousing; and meansfor regulatinvthe rc` siliency. of the springs; substantially as described.

.6. In a pipe cleaner, inv combination, 'a shaft; a housing securedy thereto; a rotary tool'driving devloe mounted in the housing;

an elastic acking located outside the house ing and a apted toclosethe space between the housing'and the wall of the pi e beiy cleaned; a s ring basket lsurrounding sani packing; an' between the latter andthe housing for the lpurppse of diminishing the resiliency ofthe 'nu and s pac g pring' basket;'substantially as described. In testimony lwhereof I aiiix my signature FRANZ HEINRICH LEHNERT. Witnesses 'p v PAUL ARRAS, CLnn SIMON.

located outside the casing an' annular member located

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