US1874798A - Dyeing machine - Google Patents

Description

4 Sheets-Sheet 1 m .N i mm \M WV. 0. 07m & ah: 4, .I KM Ana l l i v mmm h INVENTOR vATTORNEY Aug. 30, 1932. D. c. 'PE GLAR DYEING MACHINE Filed Nov. 13.- 1929 N C. P59 5 Aug. 30, 1932. D. c. PEGLAR DYEING MACHINE Filed Nov. 13. 1929 4 Sheets-Sheet '2 m. Ex 9% mvsmoh .DON 6". 7 5 1.41?

ATTORNEY Au 30, 1932. D. c. PEGLAR 7 ,7

DYEING' MAcfiINE v Filed Nov. 13,--1929 4 Sheets-Sheet 3 DON PZ H/Q ATTORNEY Aug. 30,: 1932.

n. c. PEGLAR DYEING MACHINE Filed Nov; 15. 1929 4 Sheets-Shast 4 DON C. 7 2 4? ATTCRN EX Patented Aug. 30, 1932 U NITED non o. rnemm; or 'onAmanooeegrnnnnssnn, ,As's enon i'ro vaonoivrny'n' it MA q 7 7 came oonPoR-Arrorr, F onar'rnnooee, mnnnnssnn, A oonronA'rIoN or TEN- NESSEE- I Mame meonmn This invention relates to dyeing apparatus and is particularly designed for j the dyeing of masses of raw fibersuch as cotton or wool. The invention is an improvement of that type of apparatus set -.torth'in theUnit'ed' States Patent723fl'95; V

One of the objects otthe invention provision of a circulation system 'for the dye-i liquor by which'the. flow of said liquor through the mass to be dyed may be reversed at the will of the operator. f z 7 Another object of the inventionis'to pro vide, in a system of the type descri-bed,-a tank for the receptiofi of the mass of fibers, the walls of which are so disposedias to exerta compressionupon the mass, somewhat great-' or near the peripheral portionsth'ereof than elsewhere, -whereby' the mass is somewhat compacted against the sides of thetankin order to prevent channeling of theidye-liquor, that is, the choosing by said dye-liquor of the path of least resistance,,which;in the older device was between the mass-of -fibers and the side wall ofthe tank, instead of-throug'h said mass. j Still another object of the'invention is to provide a system in which thecirculation is maintained by a pump,uni-directionalin its operatioinwith a valve insaid systemby means of which the direction of circulation of the dye-liquor through said tank maybe reversed without interrupting the 2 operation otthepump. P 1

A more specific object of the'invention-is the construction of a tank forreceiving the massoi fibers'to be dyed in whichupper, and lower dished plates are provided with their oonca'vefaces disposed toward the-space to; be occupied by the'mass to'be dyed, said plates being perforate and defining respectively above and below them, chambersin the tank 7 from which the mass tobedyed is excluded,

said chambers and the perforations in said plates promoting the-distribution and circu lation of the dye-liquor through the mass. Another-specific object 10f the invention is-the provision, in such -a' system asihas' been above descrlbed, of-a steam chest in which steam is brought into openc'onta'ct with the dye-liquor for heatingthesame and main is the taining {a heated, during the period of a;

circulation, said steanrchest being in; com -inun1cation with the saidrupper chamberaof the tank and also, by Way of a reverselvalve,

with the lQWer chamber, so that the circulating liquor regardless ofits direction of flow,

will pass through the steam chest to be heated. Y

Anotherobject of the invention is to pro-2 after he explained, said expansion tank being connected" into thissystem so that any ac,- cumulation of dye-,liquorlin saidtank may bedischarged into said system when desired.

The invention contemplates the provision of means by which the dye-liquor maybe pumpedselectivelyout ofthe system- ,1I1t0'.a storagetank for future use,'or into the sewer.

Other objects of the' invention whiehin elude also the specific formof reverse valve, i

will be disclosed as the following description of a preferred embodiment of the invention proceeds; v p In the'drawings bodying the system of the present invention. s Fig. -2.i-s in the nain, agplan view of the apparatus, a part beingbroken awa and part beingshown in section Fig. l is'a' side elevation of apparatus em- Fig. 3 1's a vertical section through the and its appurtenant. connections. V

;F1g.-4; is a:.,transve rse section H rev rseg valve, show ng t in a different, po-

sition from that shown in Fig. 3.

through the Y Fig.5 is a vertical section through the steam 1 Figs. 6

and 7 are sections, throughthe re verse valve taken atiright' angles to one an} 7 other ini planes embracingthe axis of said .ValVeLfl ures and first adverting to the complete system 'sho'wnin Fig. 1-, the numeral 8 represents the tank whichthe dyeing operation is'carwhich fitslin sealing relation to said tank and isiconvenientlyilifted by thehoist ll whenit -ried out -This't'ank has amassive cover 9 is desired to open the tank forthe purpose of filling it or removing its contents.

A steam chest 27 is mounted adJacent one we side of the tank 8 to which steam is admitted V with the conduit 51, as shown in Figure 3, or to place the conduit 33 in communication with v the conduit '51 and the conduit 37 in .com-

through a suitable pipe 100, from any source. The steam ,chest communicates with the tank 8 through a grating 22 which canbe observed in Fig. 3. The bottom of of thesteam chest are connected respectively by means including the conduits 37 and 33 and reverse valve 35 with a pump 47 The shaft 54 of this pump is driven by any suitable source of power, for instance the motor 3 56 through gearing 55;:as shown in Fig. '21

' The induction and edu'ction sides of the pump are connected,'respectively, to the valve 35 by conduits 46 and '51. The rev'ersevalve 35,

which will be described in detail later, is of such formthat it may be positioned to place the conduit 33 in communication with the conduit46 and the conduit 37 in communication munication with the conduit 46, as shown in Figure4. So that in one position of'the said valve the conduit 33 communicates with the induction side of the pump while in another position of said valve the conduit 37 is connected to the pump intake. Iii-this manner reversal of the direction of flow through steam chest and tank is efiecte'd. A valve isinterposedv between theoutlet 48 of the pump and theconduit 51 fora purpose'to appear later.

An expansion tank 62, shown as closed by a cover 62- but which may be open at the top, is provided, and pipes 61 and 63 lead from the upper part of the steam chest 27 into said eXpansiontank; These pipes perform functions which mi ht be erformed b single pipe but the use of two pipes is preferable. One pipe, for instance the'pipe 63, is provided, shown best in Figures 1, 2 and 5, with a relief valve 101 which opens only when a'predetermined safety limit of pressure has-developed in the tankS and steam-chest, as will be explained later. The pipe 61 is controlled by a pressure bleed valve 102 which'is normally open sufliciently to relieve pressure in;

cident to the normalworking. of the apparatus. ,7 p

- Fig. 1 shows also a pipe 52 having one end duit 51 is "closed so'as to interrupt the 'ci'rculation of the liquor. through theitankS; Whether the dye-liquor shallbestoredor dis the tank and the lower part charged into the sewer depends upon whether i the valve 103 is positioned toconnect the pipe 52 with the branch 53 or with the branch 53.

Fig. 1 shows a valve 64 connecting the eX- pansion tank 62 to a coupling 45 which extends between the discharge side of the pump -82 For this purpose a pipe 110 is provided for admitting compressed air to the steam chest.

V The general lay-out of the apparatus and the purpose of its principal units having now been briefly touched upon, the detailed con struction will beseen in the other figures.

For instance, in Fig. 3 the tank 8 issho'wn as provided with removable bottom platelfi resting upon a shoulder extendingaround the tank 8 a short distance from the bottom.

The plate 16is dished and has its concave sidedirected toward the space which is to be occupied by -the masscto be dyed, said plate being perforatedsubstantially over its whole extent. This plate defines betweenitself and the bottom wall of the tank a lower chamber '17 from which the fibrous mass is excluded. This chamber communicates by way of a drainage sump 18-and a fitting 19 with the conduit 37 included in one side of the circulation system. The cover '9 Sup ports, inspaced relation by means, such as the bosses 25, a plate 24 similar to the plate 16 which has its concave side also directed toward the space to be occupied by the fibrous mass. Thecover 9 and the plate 24*cl-ei'ine an upper chamber 23, from which the fibrous likewise excluded. "Said cover mass is presses down upon' the mass tobe dyed and, on account; of the concave shape of the upper and lower plates, the fibrous mass is coinpacted slightly more'at its sides than at its center, effectively preventing the formation,

between the side Walls of the tankand the V 7 mass to be dyed, channels through which the dye-liquor might by-pass. v

The cover 9 has a v depending annular flange 105', which,'when the cover is in place, rests Within a packing groove 106 formed at thetop peripheralportion of the tank 8;

e V The steam chest 27 is preferably integral 0 with the tank 8 but this is not an essential relation. The steam chest I communicates with the upper chamber 23 by means ofthc grid 22. Steam is admitted -to the steam chest, as has'been stated, through the pipe 100 and a perforated coil 107 disposed in the lower part of said chest-and'passes upwardly through the dye liquor in thejsteam chest.

The-reverse valve includes acasing; 35

havingfour nipples 34,39,40 and 36, the

nipples 34 and 36-:being. connected. respective'ly t0 the upper chamber 23 ofthe tank through the steam chest and conduit 33, and to the lower chamber of the tank through the conduit 37 and the nipples 39 and 40 be ing connected respectively with theinduction and eduction sides of the pump. The valve has a barrel 41 rotatable by means of a shaft 59 and handle 60 within the casing. This barrel is of somewhat peculiar construction, since it has a diametrical passage 42 rotatable in a plane embracing the four nipples of the casing and another diametrical passage 42 the ends of which are in the same plane as the ends of the passage 42 and having intermediate parts bent out of said plane in a general U-shape so as to avoid intersecting the passage 42. The passage 42 is therefore trident shaped on opposite sides of the valve barrel for the purpose of making the necessary simultaneous connections with tie several limbs of the circulation system. It will sufiice, for the purpose of explaining this invention to state that, when the valve is in the position shown in Fig. 3, the flow of dye-liquor induced by the operation of the pump passes by way of the conduit 51, into the nipple 40, valve passage 44, out of the nipple 36, into the conduit 37, into the lower chamber 17 of the tank 8, through the;

perforations in the plate 16, through 1' the mass of material to be dyed, through the perforations in the upper plate 24, through the upper chamber 23, through the grid 22, into the steam chest 27, through the conduit 33, and nipple 34, through the passage 43, out of the nipple 39, and through the conduit45 to the induction side of the pump.

In this case the flow of dye-liquor through the mass in the tank 8 is in an upward direction.

When the valve is in the position shown in Fig. 4, the circulation of the dye-liquor is from the conduit 51, through the nipple 40,

passage 42, nipple 34, through the conduit. 33, steam chest 27, (grid 22, upper chamber 23, perforations in the plate 24, downward through the mass to be dyed, and back through the perforations in the plate 16, into the chamber 17, returning by way of the sump 18, the conduit 37, through the nipple 36, the passage 42, the nipple 39, and the pipe 45 back to the inlet of the pump.

It will be noted that the reversaliin the direction of flow is accomplished solely by manipulation of the valve 35 without disturbing the continuous uni-directional operation of the pump. g

It will be readily understood that the upper and lower chambers 23 and 17 provide for a uniform distribution of the dye-liquor both above and below the mass to be dyed, and that the perforations in the plates 16 and 24 permit uniform percolation of the fiber by the dye-liquor irrespective of the direction in which the dye-liquor moves. It is clear also that a more even dyeing effect throughout the whole mass is produced by reversing the flow of dye-liquor than can be produced in the apparatus disclosed in the patent hereinbefore referred to, wherein the dye-liquor circulates in only one direction.

The steam which enters the dye-liquor in the steam chest for heating purposes charges the liquor with steam, some of which escapes and would accumulate'in the upper portion of the steam chest andin the upper chamber 23 of the tank, thus building up a back pressure and lowering the level of dye-liquor in said tank if means were not provided for its escape. The means shown for this purpose consists of the pipe 61controlled by the valve 102, which valve is normally open just enough 1 to permit the proper-amount of steam to es cape. This could be permitted to discharge into the open air, but since there is a certain amount of ebullition in the steam tank some of the dye-liquor is frequently discharged will be readily understood that when the flow of dye-liquor from the steam chest is downward, the steam with which. it becomes charged in the steam chest generallycondenses while the dye-liquor is passing upward through the mass in the tank 8 so that provision for the normal escape of steam is not soimportant. But when the flow of dye liquor is upward through the steam chest 1 there 1s opportunity for the steam toesca'pe from'the dye-liquor before the latter has begun to percolate the mass in the tank 8 so that provision must be made for the relief of such steam in this phase of operation of the apparatus. Furthermore, when the steam chest is connected to the educti'on side of the pump there is a building up of liquid pressurein the steam chest and upper chamber 23 of tank 8, which pressure is relieved by the discharge of some of the dye-liquor through the pipe 61 into the expansion tank pipe 63 is provided'with a reliefvalve 101. which can be set to open automatically at any. desired pressure, for instance 10 pounds, and

discharge steam or dye-liquor intothe expansion tank. Ashas already been noted, the

expansion tank can be emptied into the sys-,

tem by opening the valve 64.

The expansion tank is also useful as a re ceptacle for concentrated dye solution which maybe admitted from time to time into the; I

circulation system to renew the strength of the circulating liquor, the main bodyof which.

s of the appended claims.

is normally admitted by the pipe 104;, directly into the steam chest.

Fig. 3 shows that access may be had to the interior of the steam chest by means of a cover plate 31 held in place by a bolt 30 reacting against an underlying spider 29.

lVhen the dyeing operation has been completed the dye liquor, if it is to be used again, is pumped through the pipe 52, valve 103 and branch 53 into the storage tank, or if spent is pumped through the pipe 52, valve 103 and branch 53 into the sewer in the manner heretofore described. This of course leaves the mass of material within the tank 8 in saturated condition. This material may then be press-ed air descends through the mass of fibers in the manner of a fluid piston, driving before it the greater proportion of the retained dye-liquor so that the mass is reduced to a merely moist condition.

While I have in the above disclosure described what I believe to be a preferred practical form of the invention, it is to be understood that the details of construction are merely by way of example and not limitative and that the scope of the invention is to be measured by a fair interpretation of the terms 1. Dyeing apparatus comprising a circulation system for dye-liquor including a tank, a removable cover for said tank, upper and lower perforate: plates within said tank dividing the interior of said tank into upper, lower and middle chambers the latter being for receiving the mass to be dyed in compressed relation by the said plates, said upper plate being carried by said cover in spaced relation thereto, a pump, conduits connecting said pump with said upper and lower chambers, means for reversing the flow of dye-liquor through said tank, said upper conduit including a steam chest to which steam is admitted into contact with said dyeliquor for heating the same and an expansion tank connected at the top with said steam chest and at the bottom with said system on the induction side of the pump.

2. Dyeing apparatus comprising .a circulation system for dye-liquor including a tank,

a steam chest forming part of said circulation system and communicating with said tank, an expansion tank, a conduit leading from said steam chest to said expansion tank and a safety valve in said conduit.

3. Dyeing apparatus comprising a circulation system for dye-liquor including a tank, a steamchest forming part of said circulation system and communicating with said tank, an expanslon tank, means for admitting steamto sald steam chest and means putting said steam chest in communication with said expansion tank, saidmeans including a normally open bleed valve and a normally closed safety valve;

4t. Dyeing apparatus comprising a circulation system for dye-liquor including a tank, a steam chest forming part of said circulation system, communicating with said tank, a pump connected with said tank 011 one side through said steam chest, a Valve for reversing the direction of flow of dyeliquor through said steam chestand tank, an expansion tank, means afl'ording valve controlled communication between said steam chest and expansion tank, the latter being in valve controlled communication with said circulation system between said reverse valve and pump.

5. Dyeing apparatus comprisinga circulation system for dye-liquor including a tank, a steam chest forming part of said circulation system, communicating with said tank, a pump connected with said tank on one side through said steam chest, a valve for reversing the direction of flow of dye liquor throughsaid steam chestand tank, an

expansion tank, means afiording valve controlled communicatlon between said steam chest and expansion tank, the latter being in valve controlled communication with said circulation system between said reverse valve and pump, a discharge conduit on the eduction side of said pump and a valve insaid discharge conduit selectively diverting the discharged dye-liquor to a storage tank or to a waste outlet.

6. Dyeing apparatus comprising a circulation system for dye-liquor including a tank, a steam chest forming part of said circulation system communicating with the upper part of said tank, a pump for promoting circulation through said system, an expansion tank, means for admitting steam to said steam chest, valve controlled means of communication between said steam chest and ex-' pansion tank, a valve for reversing the direction of circulation of dye-liquor through said tank, a valve controlled waste conduit and means for driving the dye-liquor from the mass to be dyed which is in said tank, comprising, a conduit for admitting compressed air'to said steam chest. 7

In testimony whereof I have hereunto set my hand.

DON PEGLAR.

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