US1021811A - Dyeing apparatus. - Google Patents

Description

H.` WINDRATH & Hf BICKEN.'

DYBI'NG APPARATUS. vAPPLIOATION FILED Nov. 2, 1909.

Patented Apr. 2, 1912.

2` SHEETS-SHEET 1.

H. WINDRATH & H. EICKEN.

' DYEING APPARATUS. APPLIOATION PILEDINOV. 2. 1909.

1,021,811. Patented Apr.2,1912.

2 SHEETS-SHEET 2.

A Y ffm/672M- 5M 1 fm@ ma@ /MMM HERMANN WINDRATI-I AND HUBERT EICKEN, OF GREVENBROICI-I, GERMANY.

DYEING APPARATUS.

Specication of Letters Patent.

Patented Apr. 2, 1912.

Application led November 2, 1909. Serial No. 525,901.

To all whom it may concer/n:

Be it known that we,HERMANN WINDRATH and HUBERT EIGKEN, subjects of the German Emperor, and residents of Grevenbroich,

5 Germany, have invented vcertain new and useful Improvements in and Relating to Dyeing Apparatus, of ywhich the following is a specification.

This invention relates yto a dyeing apparatus comprising a carrier for the textile materials and a bell for removing the air from the material to be dyed.

The pressing apparatus differs from others in the use of suction, rather than pressure for causing the dyeing liquid to circulate through the fabric being dyed. It is well'- known that fluid, under pressure, tends to separate the members of the vessel or pipe containing it; and that the same, under suction, tends to more closely unite said members. It is also known that mechanical fastening means are essential elements in a fluid-tight joint, subjected to internal pressure, and that in order to disunite such joints, physical force is essentially exerted. To the contrary: where suction is exerted within a hollow tube or chamber, having joints, the tendency is to bind the joints more closely and firmly together. The principle of suction is therefore employed in the present invention, for the two-fold purpose of providing a joint, of maximum eiiiciency, between the tank, which holds the liquid dye, and the pipes through which the dye circulates; and to provide such a joint, that requires only a release from suction and from the pressure resulting from gravity, for disconnecting the joint.

We attain` the foregoing objects by t-he mechanism illustrated in the accompanying drawings, in which, similar reference characters designate similar parts, and inv Figure 1 is a view in elevation of the preferred form and embodiment of our invention, certain parts being shown in section. Fig. 2 is a top, plan view of the tank, the pump and connections.

Referring now to the drawings: A carrier A, is provided for holding the material, to

be dyed which is here represented, by spools or bobbins of yarn or the like, at a, which are hereinafter to be referred to as textile. The manner in which this textile is held by the carrier, forms no part of this invention and will not be described. The carrier A is havingan annular opening ai, therein. Intermediate ofthe cylinder, is the horizontally disposedvpartition' a having an opening centrally thereof; and a pipe S, registering with the opening, extends to the same horizontal plane as that of the bottom of Raising At P2 is indicated a fluid-tight joint between fthebell and the carrier. A tank F, of suflicient size to receive the bell, has openings' 'C and E through the bottom thereof, and

adapted to register with the .opening d and S, respectively, when the bell and carrier jare lowered into the tank F. A suction pump indicated at G, isconnected with the openings E and G bysuction and delivery `pipes E and C, respectively, so that when the openings a5 and S" are.y in registration with the openings C and E', and the bottoms of the pipe S and'ca'rrier B rest upon the bottom yof the tank, communication is established betweenthe `pump and carrier, which, latter, is providedwith perforations a2 andai. The flexible pipe Z communicates with the interior vof .the bell and with a vacuum tank, indicated at V, in which a .vacuum may be sustained by `any proper `means. A st-op cock'I-I isy interposed between thev .pipe Z and the vacuumI tank, for establishing or interrupting suction through the In operat-ion, the carrier B is first loaded with textile, and the tank F is supplied with the proper amount of dyeing fluid. The

bell P is then seated on the carrier as shown. The bell and carrier arethen lowered into the tank, until they are seated on the bottom thereof, and the openings S and cl, register with the openings E and C', respectively. During the operation of loweringthe bell, the cock H is opened, so that the air therein gives place to the dyeing liquid. yThe suction, produced by the vacuum means, should be sufficient to so rarefy the air in the bell so that the dyeing liquid has free access to penetrate between the fibers of the textile, and thus assure a uniform coloring of the same. This vacuum also causes the external lpreferably of cylindrical form, the top of i kthe cylinder being closed, and the bottom pressure of the air to seat the carrier more firmly on the bottom of the tank and produces a tighter connection between the openings S, CZ and E, C. This tightening effect is increased by the action of the suction pump G, which causes the dyeingliquid to circulate through the pipes E and C, and through the carrier B pipe S an annular space D, in the direction indicated by the arrows, owing to the outlet S being less commodious than the inlet d and therefore offering greater resistance to the downward current than is offered to the upward current. Now, considering the bell and carrier to be in the lowered posit-ion, and resting on the bottom of the tank, the bell and carrier being full of the dyeing liquid: the suction, from the pump, draws the liquid through the pipes S and E and delivers it again into the tank, through the pipe E and annular space D, whence it passes through the perforations a2, between and through the textile and back through perforations a3, and is again sucked down through the pipe S. Thus a continual circulation of the liquid is maintained and a continual suction is exerted from two sources, by which a secure and convenient connection of the carrier with the suction pipes is assured.

We. claim-- l. In a dyeing apparatus for textile fabric, a tank adapted to contain dyeing liquid and having an inlet and an outlet in the bottom thereof, a hollow, perforated carrier for the fabric adapted to be lowered into said tank and having ports adapted to register with said inlet and outlet ports, a bell removably secured around said carrier and adapted to be lowered therewith into said tank, and suction means communicating with the inlet and outlet for establishing a current of the liquid through the carrier and bell and fabric.

2. In a dyeing apparat-us of the kind described the combination with the circular dye tank and the carrier for the material, this carrier having the shape of a hollow the tank thereby sealing the carrier, a

vacuum plant, a flexible pipe connection betweenthe said vacuum plant and the said bell, a cock in the said flexible pipe connection, whereby the air can be withdrawn from the bell, the carrier and the material, when the carrier is dipped into the dye, while when the carrier is removed from the tank, the air isprevented from arriving too rapidly at the material, substantially as and for the purpose described.

3. A dyeing apparatus for textile fabric comprising a tank adapted to contain dyeing liquid and having an inlet and an outlet in the bottom thereof, a hollow, perforated carrier adapted to be lowered into said tank and having openings adapted to register with said inlet and outlet, said carrier having a horizontal partition dividing it into a lower and upper chamber, a pipe communicating with the upper chamber, a bell surrounding the carrier and having air exhaust means connected therewith, and suction means connected with said inlet and outlet for establishing a current of said liquid through the textile fabric.

4. A dyeing apparatus for textile fabric comprising a tank for containing dyeing liquid, a carrier for textile fabric, a bell surrounding the carrier and fabric, means coacting with the liquid for exhausting air from the textile fabric and means for establishing a current of the liquid through the fabric while the air is exhausted thereA from.

In testimony whereof we have hereunto set our hands in presence of two witnesses.

HERMANN WINDRATH. HUBERT EICKEN. Witnesses:

Louis VANDORY, OSCAR DEPNER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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