US1682841A

US1682841A - Process of and apparatus for cleaning textile goods

Info

Publication number: US1682841A
Application number: US118832A
Authority: US
Inventors: Conrad J Fruh
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-07-02
Filing date: 1926-06-25
Publication date: 1928-09-04
Anticipated expiration: 1945-09-04
Also published as: FR617774A; GB254706A; DE465627C

Description

Sept. 4, 1928.

C. J. FRH

PROCESS OF AND APPARATUS FOR CLEANING TEXTILE GOODS 1,682,841 C. J. FRH

Filed June 25, 1926 2 Sheets-Sheet 2 PROCESS 0F AND APPARATUS FO-R CLEANING TEXTILE GOODS Sept. 4, 1928.

li'atented Sept. 4, 1928.

UNITED STATES CONRAD J. FRH, 0F ZURICH, SWITZERLAND.

APRGESS OF ANB APPARATUS FR CLEANING TEXTILE GOODS.

Application leil June 5, 1926, Serial No. 118,832, and in German);` .Tuly 2, 1925.

The present invention relates to a process for wet-treatment, especially for washing textile goods in the form of fabrics and a machine for the working of the process.

The object of my invention is to provide a process and machine whereby the fabric may be conducted through a washing course in such manner that both sides of the fabric will be thoroughly and uniformly subjected io to the actionV of a cleansing liquid.

A further object of the invention is to provide a process and apparatus whereby the length of the working course and the length or height of the apparatus may be reduced i5 over present processes and apparatus with resultant advantages.

lily invention will be best understood when described in connection with the accompanying drawing, in which luig. l shows a partial longitudinal section and llig. 2 a partial cross section ofthe machine.

-Upon foundations l? a frame formed by the uprights l, 2, the traverses el and 5 and the stays 6, 7 is provided. rlhe traverses 3, 4l, 5 carry bearings 8, 9, l0 etc. in which shafts il, l2, 13 are placed. l`he shafts ll, i2, 13 are rotated by means of a motor shown only by the letter M. Upon the shafts li, l2, l chain-wheels la, lt, l5, l5', lo, lo (Fig. 2) operated by a train of gears indicated by lt are disposed driving the chains i9, i9 etc., resting upon guides i7, 17, 18, 18 etc. The disposition ofthe train of gears is such that the shaft il` turns with the highest speed, the shaft l2 with a smallerspeed and the shaft l5 with a speed still smaller; of all the chains the chains driven by the Vshaft 13 have the smallest speed. To the chains, by means of rods 20, 2U etc. endless and

porous bands

2l, 22, 23 are attached guided upon cylinders in such a way that they are entrained by the motion of the, chains, the band Q3 of course having the smallest speed. Atvthe sides of the frame along the machine

liquid delivery tubes

25, 25', 26, 26, 27, 27 etc. are provided, extending across the transport bands and having holes 28,` 29, etc. (Fig. l). "With the band 2l are shown more holes at the front end than at the rear end and the holesmay also be of different width in order to be able to place themost part of .liquid upon the textile fabric at the beginning `of the process. For the

bands

2Q and 23,1. e. for

the second and third step the distance of the holes is about the same for the whole length of the machine.

ln order to prevent the fabric from adhering or sticking to the band of an upper step when passing therefrom to the band of the next lower step, the iirsttube of the lower step is arranged to act as a guide which is engaged by fabric in passingA from the de livery end of the upper band to the receiving `The fabric is reend of the lower band. versed-face for face-at this time, what has been the lower face in the upper step becoming the upper faceV in the lower step. This face of the fabric tends to stick by suction to the upper band and cause the fabfw ric to travel with the lower stretch ofsaid band.` This is prevented by passage of the fabric around the iirstr spray tube of the lower band whereby theportion of the fabric lying between the same and the delivery end of the upper bandis pulled away from and prevented from traveling with the lower stretch of the upper band. `Ait the same time this intervening portion of the fabric forms a deilector guiding a jet of the liquid issuing from the tube upwardly into the angle between the fabric and lower stretch of the upper band, thus assisting inbreaking the suction so that a quick release of the sticking fabric will beeffected without inj ury thereto.

Since the liquid is not intended to remain in the fabric, the bands are porous as already remarked and7 in order to prevent the liquid from dro a iin r from an u ier, u aon a lower bc i l, Q are disposed from which and sprinkled thoroughly with liquid. From fthe end of this band the fabric will drop on the second band 2Q, a smaller speed, transporting the goods 1n the second step in opposite direction andgetting sprinkled again whereby the sprinkling of the first tube of the second step prevents the fabric from adhering or sticking to the band Q1 of the first step. The saine operationtakes place from the second to thethird step,

so as to allow the fabric to be sprinkled equally in every part and on both sides during its travel through the machine.

This process and apparatus may be employed with great advantage in the cleansing fabrics after they have been loaded with tin -with this apparatus in the washing tetrachlorid and before dyeing, for the urposeof removing the free tin and acid. tis desirable and necessary in this operation that the fabric be initially subjected for a certain time period, while in a fully spread condition, to a thorough Washing action in order to liberate and Wash olf all or the reater portion of the particles of free tin. I have discovered that this initial Washing action may be carried out Within a comparatively short period of time when the fully spread fabric is subjected to eiiicient Washing treatment. This initial Washing action should be followed hy a washing action of longer duration in order to remove any residual free tin remaining and to wash out all the acid. I have also discovered that this may be carried outvvithin a reasonable period of time if the fabric is exposed to Washing treatment on both sides, notwithstanding the fact that, in order to reduce the length of the course, the fabric is-permitted to pleat or fold upon itself durin the acid removing stages of treatment. I take advantage of these discoveries in the provision of this improved rocess and machine. With the type of mac ine illustrated in which the sinuous washin course is divided into three ste s `or stages, t e fabric is reversed side for si e in its travel from stage to stage so that a thorough washing action is obtained, and a time period of about two minutes is allowed for the travel of the fabric through this sinuous course. This is divided u into fifteen seconds for the first course, tiirty seconds for the second course and ninety seconds for the third course. These time eriods may be varied, of course, but will be ound suicient out of loaded silk ahi-ics. In the trave of the fabric along the .first stage the fabric is fully outs read and the time period is sufficient for t le washing out of all or a very high percentage of the free tin and in most cases a certain amount of the acid. In the travel of the fabric along vthe second stage, in' which it is reversed so that its opposite side is exposed to the direct action of the Washin fluid, any remaining free tin is removed andT a portion ofthe acid iswashed out. By reason of the reduced speed of travel of the fabric in the second stage with res ect to the first stage, the fabric leats or fol s to a certain extent, but is subjected to washing treatment for a long enough period to remove a substantial amount of the acid. In the travel of the fabric along the third stage, at a slower rate of speed than its travel through the second stage, and in which it is reversed to bring its original face, i. e., that exposed to the first Washing action, to washing treatment, the fabric pleats or `folds upon itself to a greater degree than on the second stage, but is subjected to a longer period of washing treatment so that at the end of the course all the acid will be Washed out. The sprayers along the second and third stages may direct the washing liquid in such manner and with such force as to tend to lift the pleats or folds, thus aitating such portions of the fabric and allowing the liquid to reach all portions thereof and thereby increasing the ellieiency of the washingaction. By this manner of treatment a compact type oftapparatus is produced which may be of much ess length than a horizontal machine and much less height than a vertical machine operating to act on fabric traveling at a more or less uniform or constant speed. The compactness of the organization not only saves lioor space but enables conveyors and conveyor chains or other working parts of less length to be employed, reducing liability of breakages or derangements causing more or less frequent stoppages and repairs.

What I claim is:

l. The method of treating a textile fabric to the action of a cleansing liquid, which consists in conveying the fabric throu h a plurality of courses at progressively dcreasing speeds, and spraying the fabric with the liq- 1nd on each course.

2. The method of treating a textile fabric to the action of a cleansin liquid, which consists n conveying the fa ric throuvh a plurality of courses in a Siuuous pati at progressively decreasing speeds so as to pro essively increase its time period of trave 0n successive courses, and spraying the fabric with the liquid on each Course.

3. The method of treating a textile fabric to the action of a cleansing liquid, which consists n conveying the fabric in a zigzag path through a p urality of superposed courses at pro ressively decreasing speeds, whereby the fa ric is reversed face to face on succeeding courses and its time period of travel. progressively increased fromcourse tocourse, and spraying the fabric with the liquid on each course.

4. An apparatus for treating textile fabries to the action of a cleansing liquid, comprising means `for conveying the fabric through a plurality of courses at progressively decreasing speeds, and means for spraying the fabric with the liquid on each course.

' 5. An apparatus for treating textile fabrics to the action of a cleansing liquid, comprsing a series of superposed conveyors for courses, and a series of sprayer tubes along each course for spraying the liquid upon the fabric.

7. Apparatus of the character set forth in claim 6 wherein the first sprayer tube of each lower course is arranged to spray the liquid between the fabric passing from the conveyor of the upper course to the conveyor 20 of the lower course for the purpose set forth. In testimony whereof I affix my signature.

DR. C. J. FRH.