US1294035A - Drying process and apparatus for tentering and other machines. - Google Patents

Description

F. P. BOLAND. DRYING PROCESS AND APPARATUS FOR TENTERING AND OTHER MACHINES.

APPLICATION FILED APR. 19. I91].

Patented Feb. 11, 1919.

2 SHEETS-SHEET I.

F. P. BOLAND.

DRYING PROCESS AND APPARATUS FOR TENTERING AND OTHER MACHINES.

' APPLICATION FILED APR. 19. I91].

1,294,035 Patented Feb. 11, 1919.

2 SHEETSSHEET 2.

autumn 7 cIs 2.30am, or raovxnnncn, nnonn ISLAND.

the stretching thereof or otherwise, and con-' serving the heat or'drying medium in such a manner as to render the operation more speedy as well asmore convenient and with greater comfort to the attendant.

A further object of the invention is the provision of an apparatus for carrying out such a process, certain embodiments thereof being herein set forth, the present structure being illustrated in connection with a tentering machine and adapted for 'drymg the fabric during itsstraight ath of travelthrough the ten-tering machine, an object of the present structure being .the elimination of the ordinary heating rollers or hot cans as well as the'tortuous or multipleof plies or paths of travel through the drier as heretofore employed. Broadly considered, the present invention contemplates a process and any apparatus capable of carrymg out the same consisting of forcibly assing a suitable drying medium-throng afabric or the like preferably simultaneously with acontinuous passage of the fabric through a stretching orother form of finishing machine,jthe drying medium being suitably conserved under regulation and prevented [from escaping from the article-containingportion of the machine during-the drying operation.

In the drawings forming a part of this application a form of. apparatus, with modifications is illustrated for commerciallv piactising the present process and it will understood that many apparatus may be designed for carrymg out the same without departing from thespirit and the scope of my present invention. 7

I Like reference characters designate corre Specification of Letters faten t. Application filed Apri1 19, 1917. Serial No. Miami.

other forms. of

roof for the chambers 18 is centrally pro- Patented Feb. ii, are.

ponding parts throughout the said drawlngs, in which; i

Figure 1 is a side elevation of a tentering machine provided with the present device parts being-broken away.

Fig. 2 is'a top plan view thereof.

Fig. 3 is a vertical transverse sectional view through the same with parts broken away.

Fig. 4 is an elevational view of a form of separate drier embodying the principles of my invention.

Fig. 5 illustrates a difierent form of heat ing means for use with the construction shown in Figs. 1 and 2, and,

Fig. 6 illustrates a further embodiment of the device upon a reduced scale showing a still further heating arrangement.

Referring more especially to Figs. 1, 2,

and 3 of the drawings, an apparatus is therein illustrated for carrying out the present drying process in connection with a well known form of tentering machine 10 having the usual tentering'chains or belts 11, 'upon which the fabric 12 is adapted one or more chests 0r casings 16 preferably arranged intermediate the frame standards or uprights 17 of the tentering machine 10, each chest providing an upperchamber 18 for the free passage of the cloth 12 and its conveyer means longitudinally therethrough,

the ends of the chamber 18 being open, and also provides a compartment 19 beneath the belts adapted for housing suitable heating members such as coil or plpes 20 therein, the said compartment 19 being open at the bottom thereof.

The top 21 of each chest 16 forming the vided with a transversely arranged outlet hood 22 herein shown of double formation adapted for conducting the heating medium from the chamber 18 into a ,main header or' outlet ipe 23 bymeans of connecting branch flues 24. ;The outlet header 23 is connected by means of a cross-pipe 25 with the entrance of a circulating fan or blower 26 suitably mounted adjacent the device while the outlet pipe 27 of the blower 26 has a similar header 28 provided with depending pipes 29 terminating in angularly positioned free ends '30 beneath the chests 16 and each provided with a flaring hopper form of outlet mouth 31 slightly projecting within the compartment 19 centrally beneath the heater 20 therein contained The chest -16 may be suitably mounted upon corner legs 32 and have side and end walls 33 while free passage for the heating medium is provided through the bottom frame 34; of each chamber 18 permitting the air from the fan 26 to be desirably raised in temperature by the coils 20 while passing upwardly through the compartment 19. The heating medium then passes through the cloth 12 and upwardly through the hood 22 by means of the partial vacuum or suction created within the hood 22 by the fan 26.

It will be understood that while steam pipes 20 are herein illustrated within the heating compartment 19, any other form of heater may be utilized for the same purpose therein, the functioning of the structure being the conservation of the drying medium, air being herein used for the purpose, the conservation being effected by employing the'ai-r over and over again by the action of the fan 26 in forcibly injecting the drying medium to the bottom of the chest 16 and by suction drawing the same outwardly at the top thereof after performing its drying operation upon the cloth 12 moving through the chamber 18. It will of course be evident that the bottom of'the compart- -ment 19 bein open, a required quantity of outside air will be drawn into the compartment and chamber therethrough but it is further pointed out that very little if any of the heating medium escapes from the chamber 18 which is also true of the steam generated therein by reason'of the contact of the heating medium with the moisture ladened cloth 12. This conserving of the drying medium and the confinement of the generated steam renders the device more efiicient in operatlon andprevents the intense generation of heat commonly incident to the operation of tenterin' machine dryers now in use.

A mo form of heater for the drying medium is illustrated in Fig. 5 of the draw- .ing, the same being adapted for employment with the complete form of apparatus illustrated in Figs. 1, 2, and 3 with the exception of the. omission of the coils 20 or any other heating device within the compartment 19. In lieu of the heating pipes 20, a heater casing 35 is provided adjacent the fan 26' and connected to the inlet end thereof while a header 23 connects with the inlet end of the casing 35, it being understood that the said header 23 constitutes the suction outlet header for the drying chest 16' in a manner identical to that heretofore described. It

is also noted that the outlet pipe 27 of the.

fan 26' connects with the inlet header 28' for supplying the heating'medium to the said che'sts 16'. A suitable heater such as steam ipes or any other form of coil 20 is provided within the casing 35; it will be apparent that the fan 26 will bring the outfiowing medium from the chest 16 into heating contact with the heater 20 by means of suction prior to entering the fan 26', while from the outlet of the fan the medium so heated will be forcibly impelled beneath the chest 16' for drying the cloth 12 in the manner heretofore set forth. Similar embodiment of the same principles are involved in the apparatus disclosed in Fig. 6 of the drawings, in which a suitable heater 20 is provided at the outlet of the fan 26 while the said fan by suction exhausts the drying medium from the chest '16 through a pipe 23", a pipe 28 being provided for feeding the drying medium beneath the chest 16" in a manner which will be readily understood from the hereinbefore description.

The constructions illustrated in Figs. 5 and 6 of the drawings provideforms of apparatus, either of which permit of the disposing of the heater for the drying medium at a desirable distance from the tentering machine and eliminating the coils from the operating chests, although the principles of t e process are present in each of these three constructions, it being also noted that in the forms illustrated by the first three figures of the drawings as well as that of Fig. 6, the heater for the drying medium is disposed in advance of the passage of the medium through the cloth being operated upon while in the structure shown in Fig. 5, the fluid from the cloth-is heated within the inlet or suction conduit of the fan.

A drying unit embodying the same principles is illustrated in Fig. 4 of the drawings and comprises a casing or box 36 having heating coils or pipes 37 arranged therein, the cloth or goods 12 to be dried being passed longitudinally through the box 36 adjacent one longitudinal side 38 thereof.

An operating fan 39 is mounted adjacent the box 36 and has an outlet conduit 40 opening at two points as-at4l in the said side 38 communicating with the inlet of the fan 39 for ex'haustin the drying medium from the box 36 and orcing'the same through "the cloth 12'.

The outlet pipe 42 of the fan 39 is arranged with a branch 43, entering a short distance within the open end of the inlet operation of the fan 39 withthe damper 46 closlng the outlet pipe 42 the air from the pipe 44, which connects as at 45 with the A box 36. A damper 46 is provided in the pipe 42 permitting the outflow from the fan 39 to either pass, to the atmosphere outwardly v the said damper over the pipe 43, or permitting such.

through the pipe 42 by closing outflow from the fan to enter the box inlet pipe 44, when the damper 46 closes the pipe It will be understoodthat' upon the box 36 which passes from the fan will enter therewith a supply of outside air through chine comprising a chest having a .chamber throughwhich ,the article to be dried is adapted to pass and further having a compartment communicating therewith and having'an open bottom, a'pipe'teifminating the pipe 44 from the pipe 43 and carrying through the inlet pipe 44. It will be un-- derstood witheach apparatus that may be employed for carrying out the process, such as those herein illustrated, may readily reverse the path of travel of the drying medium through the goods being operated upon by reversing the fan operations or impulses and the same is also contemplated 'by my invention. A process and different modifications of apparatuses are provided by means of which moist goods in a tentering or other machine are quickly dried simultaneously with the operation of the machine and in an economical manner, saving a great amount of time and labor for the perfect drying of the goods as well as providing for the health beneath said chest with a mouth pcirtionad- 'jacent' the said open bottom, a pipe upon said. chest in communication with saidchamber, and an air circulator operatively connected to the saidpipes.

' 5. A'drier for a tentering or similar machine comprising a chest having a chamber through which the article to be dried is adapted to pass and further having a compartment communicating therewith and havingan open bottom, a pipe terminating beneath said chest with a mouth portion adjacent the said open bottom, a pipe upon said chest in communication with said chamber, an. air circulator operatively connected to the said pipes and a heater for the circulated air arranged within the path of travel thereof.

6. A drier for a tentering or similar machine comprising a chest having a chamber through which the article to be dried is adapt-ed to pass and further having a compartment communicating therewith and having an open bottom, a pipe terminating beneathsaid chest with a mouth portion adand comfort of the operators, and resulting in a more perfectly and evenly dried finish and product value. a What -I claim as new is l. The process of drying moisture-laden textile goods consisting in passing the goods through a heated chamber, forcing air toward one side o'fthe goods and through the goods at a right angle to-the line of movement of the goods and withdrawing the moisture-laden air at the'opposite side of the goods.

2. A drier comprising a chest having a receiving chamber for the article to be dried and further having a compartment therebeneath communicating therewith, a pipe having additional commercial freely entering said compartment, a hooded pipe above the chest, an air heater for the chest and an air circulator connected with the pipes.

3. A drier comprising a chest having a receiving chamber for the article to be dried and further having a compartment therebeneath communicating therewith, a heater located in said compartment, a pipe freely entering said compartment, a hooded pipe in connection with the chamber, and a circulator connected with the said pipes.

jacent the .said open bottom, a pipe upon said chest in communication with said chamber, an air circulating fan operatively connepted between the said pipes and a heater arranged within the chest.

' 7. A drier for tentering machines comprising a plurality of spaced 'chests surxrounding the cloth being operated upon, a

pipe terminating beneath each chest, a header for said pipes, hooded pipes communicating with each of said chests, a

header for said hooded pipes, and an air circulating fan operatively connected between the said headers.

8. A drier for tentering machines-comprising a plurality of spaced chests surrounding the cloth being operated upon, a pipe terminating beneath each chest, a header for said pipes, hooded pipes communicating with each of said chests, a header for said hooded pipes, an air circulating fan operatively connected between the said headers, heating means for the air circulated by the said circulating means and air admitting means for the chests.

9. A device of the class described comprising a chest through which an article to be dried is adapted to pass, an air heater for said chest, airpipes communicating with the chest at the opposite sides thereof and at the opposite sides of the path of travel of the goods to be dried and air circulating means for the said pipes and chest,

the said pipes-adapted to discharge and remove the air in a line at a right angle to ture-laden air at the opposite side of the the length of the goods. goods and returning the air for reapplioa- 10 10. The process of dryingmoisture-laden tion to the goods.

tielxtile 1goodls1 consisting il paising the goods In. testimony whereof I affix my signature.

5 t roug a eate 0 am er, orcin air toward one side of the goods and thrfiugh the FRANCIS ROLAND goods at a right angle to the line of move- Witness:

, ment of the goods, Withdrawing the mois- CALVIN H. BROWN.

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