US1773852A

US1773852A - Drying machine

Info

Publication number: US1773852A
Application number: US364084A
Authority: US
Inventors: Bertrand A Parkes
Original assignee: Individual
Current assignee: Individual
Priority date: 1929-05-18
Filing date: 1929-05-18
Publication date: 1930-08-26
Anticipated expiration: 1947-08-26

Description

B. A. PARKE S DRYING MACHINE Aug. 26, 1930.

Filed May 18, 1929 4 Sheets-Sheet v 1.

' II'TOKE Y8 IN VE N TOR; BEfiTfi/VA/D 17 P/YRKES: E Y.'

Aug. 26, 1930.- B. A. PARkES 1,773,852

DRYING MACHINE Filed May 18, 1929 4 Sheets-Sheet 2 fiikrxmvo PI/Fl/E 3 ,js v v ATTORNEYS.

Aug. 26, 1930 p s 1,773,852

DRYING MACHINE Filed May l8, 1929 4 Sheets-Sheet 3 Aug. 26, 1930.: B..A. PARKES DRYING MACHINE 4 Sheets-Sheet 4 Filed May 18, 1929 nv VE/V 70R! .Bzmrmswa /7. FIR/ 6 1 .latented Aug. 26, 1930 BERTBAND A. PABKES, OF PHILADELPHIA, PENNSYLVANIA I DRYING MACHINE Application filed May is, 1929. Serial No. 364,084; 7 v w being driedbeing'car ied an'd confined bea tween said aprons. a j My invention further consists 'inproviding novel means for controlling the circulation and replacement of theair heated by theheat- 55 ing coils, and in providing means for regulating and controlling the speed atvwhich the sprocket chains and aprons carried thereby are propelled. 1 1 5 I My invention still further consists of va- 60 rious other novel. features of construction and advantage all as hereinafter described I My invention relates to'a new and useful drying machine and it relates more particularly to a drying machine using heated air as a drying medium,whereby any desired material such as piece go ds, yarns, woolen or cotton stock and similar materials may be efiiciently andeconomically dried byone and the same machine. I

My invention'further relates to a drying machine wherein the heated dry air is blown through the fabric, stock or other material being dried to insure the complete, thorough and tilllck drying of such fabric, stock or materia by a single operationor passage ?-5 through the drying machine. V

My invention still further relates to a drying machine of this general character which is particularly adapted for drying delicate fabrics such as silks, rayons, chifions andthe it) like whereby such fabrics are dried free of wrinkles and creases and themarkings neces- 1szairily resulting from such creases and wrines; i

and claimed. s I

In the accompanying drawings Figure 1, represents a side elevation of a 05 drying machine, embodying my invention, "certain parts being 'reinovedto show the interior constructiom= 4 Y Figure 2, represents a section on line 2+2 of Figure 1.. 1V

Figure 3, represents a. plan view of Fig, 1. Figure 4, represents'a view similarto Figure 1 showing a modified form of my inven- My invent-ion still further relates-toa dryi a Y ing machine wherein the heated air is con- R f rlng t0 the 1n Whichvlike 75 s'tantly circulated and reheated to enhance re erence characters Indicate like parts, desits absorbing capacity and wherein the moist 'lg fi & drying m hine embody ng my in air is slowly. and gradually expelled and reven on, m l s pp r d n, am, or placed byfresh air so that no interference h u lng 2, and aving thez base. 3 i

V 7 30 with the circulation of the air, or any sudden a t fi p d sig parti cooling thereof can take place. 'tion which divides the machine casing into an upper compartment 9 and a lower oompartment 10, which. v compartments intercomrnunicate through the end ducts-11 and My invention still further: lates-to' a machine of this character wherein thematerial being dried may be propelled at any desired speed in accordance with the nature of and the amount of humidity in said material.

v My invention still further relates't'o a dryhereinafter morefully set forth,

' 14 designates a series of heating coils disside ducts 12 in a'manner and for a purpose 85 ing machine of this character which is of a simple construction, inexpensive to produce and simple to operate.

To the above ends my invention consists of a' housing, a series of heating coils in, the lower portion thereof, acylindrical fan above said coils, larger and smaller sprocket wheels at either end of said fan, sprocket chains carfried by said sprocket wheels in spaced relation to each other, endless aprons carried by: said sprocket chains, and-means for propel-' :0 ling said chains and said aprons, the material in the lower compartment 10 ands'upplied with steamer any other. suitable heat-' ingmedium in any suitablemanner. The

lower compartment 10 is provided with a 'fresh air inlet 15' while" the upper compartment 9 isprovided with the moist air outlet 16, said outlet and inlet servingto control the u circulation of .air and being hereinafter further referred to. w

. To the-frame 2 ofithe machine, are secured the bearings 18 in which is journalled the shaft 19 which carrie a o e end t emet the driving pulley 2O driven by any source of powernotshown. The shaft 19 carries and revolvesthe fan wheel 22 which is provided with the, inclined vanes or' blades 23 along its circumferential periphery. At either end of the fan wheel 22 is a sprocket rim 27 which carries the cross bars 24 which serve as bafile plates to distribute the air blown by the fan wheel 22. The sprocket rims 27 are carried by the sprocket wheels 28 and are secured thereto by the spacing blocks 26'. The sprocket wheels 28 have the hubs 29 which are loose on the bearings 32 so that the sprocket wheels 28 are free to revolve independentl of the shaft19 as will be understood from Figure 2. 30 designates cross bars at either side of the machin which carry the bearings 31 in which are journalled the shafts 33 which carry the loose sprocket wheels 34 over which pass the endless sprocket chains 35 which also pass over and'engage the sprocket rims 27 carried by the loosesp'rocket wheels 28. The sprocket chains 35 also pass over the loose sprocket wheels '38 on the shaft 39 and over the sprocket wheels 38 fast on the shaft 40, the

shafts

39 and 40 being journalled in the bearings 41 carried by the cross bars 30. The shaft 40 also carries the fast pulley 45 over which passes the belt 46 which also passes over the fast pulley 47 on the shaft 19 [wherebythe sprocket wheels 38 are revolved to drive the sprocket chains 35. The chains 35 are connected by cross bars 49* on the underside of which is the wire cloth or other flexible-apron 50* which forms an endless inverted conveyor which will be hereinafter referred to. 48 designates endlesssprocket chains which pass over loose sprockets 42 on the shafts 43 and over the sprocket wheel 28.

The endless sprocket chains 48 are connected by the transverse bars .49 which support the clothor wire nettingapron 50 to form an endless conveyor for carrying the stock 61 hereinafter further referred to (see Figs. 1, 2 and 3). The endless chains 48 ride over the inclined tracks 51 and the bottom horizontal tracks 52 as well as over the loose idle sprocket ,whe'els"53 carried by the supports 54 and the loose idle sprocket wheels 55 carried by the frame 2 of the machine. aswill be understood from Fig. 1, I

To prevent the air sucked from the heating compartment 10 through the ducts 12' from escaping, I provide the shields 94 which have theflanges 95 which register with the cylindrical members 93 carried by and re- .volving with the sprocket wheels 28. To

prevent the air thus sucked and guided into the fan wheel 22 from being blown out except between the baflie plates'24 and through v the

aprons

50 and 50" carried by the

sprocket chains

48 and 35, I' provide the shields 96 which extend from the flanges 95 of theshields 94 to the peripheries of the juxtaposed sprocket wheels 28 as will be best understood from Fig. 2. 97 designates a guard positioned between the

sprocket chains

48 and 35 to prevent the scattering of the stock 61 and will be hereinafter referred to. In order to insure complete removal of the stock 61 from between the

aprons

50 and 50*, the latter is provided with the longitudinal blade 64 which is of a width or height substantially equal to the distance or space between said aprons, and which serves to remove the stock 61 from ofl' the lower apron 50 as will be understood from Fig. 1 it being noted that any desired number of'blades 64 may be employed if so desired.

he operation is as follows The stock 61, such as wool, cotton, pulp or the like, is fed, automatically or manually onto the apron 50 carried by the chains 48 which travel in the direction of the arrow 60. VVhenthe apron 50.and chains 48 reach the idle rollers '42 on the shafts 43 at the left hand side of Figure 1, the stock 61 becomes i

shafts

43 and 39 respectively, the

chains

35 and 48 carrying the aprons 50* and 50 respectively, then engage the outer sprocket wheel 28 and the inner sprocket rim 27 carried thereby with the stock 61 confined therebetween as will be understood from Fig. 1.

In this position of the parts, and until the stock 61 has travelled completely around the sprocket wheels 28.and 27, the fan wheel 22 blowsv a constant current of hot air there through, said air being forced through the 'stock 61 by its inability to escape otherwise due to the provision of the shields or

guards

94, and 96 hereinabove referred to. After the stock 6lhas travelledcompletely around the sprocket wheel 28, the chains 48 carrying the apron 50 which carries the stock pass over the idle sprockets 42 on the shafts 43 at the right hand side of Fig. 1, over the inclined tracks 51 and over the idle sprockets 53 on the right hand side of Fig. 1, where the stock 61' falls off the apron 50 carried by the chains 48, as at 63. The sprocket chains 48 then pass under the idle sprockets 55 onthe lower right hand side of Fig. 1, over the'bottom' tracks 52, under the sprockets 55 at the lower left hand side of Fig. 1 and over the sprockets 53 at the left hand side of Fig. 1 to the inclined tracks 51 where the stock 61 is again fed onto the apron 50 carried thereby and the cycle of operations begins over again. The motive power for the propulsion of the stock 61 and 'the shaft 39 which a through the ducts 12 and the

aprons

50 and 50* l8 and is'provided by the belt 46 which passes over the pulley 47 fast on the revolving shalt 19'and over the alley carried by l so carries fast the sprocket wheels 38? over which chains 35 pass as will be understood from Fi -1.

The air sucked into the Ian "wheel 22 blown through the

aprons

50 and 50 carried by the

sprocketchains

48 and 35 around the

sprocket wheels

28 and 27 and through the stock 61, flows downwardly through the end ducts 11 back into the heating chamber 10 to be dehydrated and'again sucked through the side ducts 12 into fan wheel 22. This is accomplished partly due to the fact that moist air leaving the stock 61 is heavier than dry air and partly due to the .fact that constant suction of'the air by the fan wheel 22 from the lower compartment 10 through the side ducts 11, reduces the pressure in said lower compartment, thus creating a downward current through the end ducts 11. Apart of the moist air in the,

compartment 9 escapes through the outlet 16, thereby causing a draft of fresh air to flow into the compartment 10 through the inlet 15. In this way the air in the

compartments

9 and 10 ischanged or replenishedgradually, so thatno sudden cooling ofthe air supply takes place as would be the case if'the air in said compartments were to be completely changed or replaced at stated intervals.

In Figure .4 I have shown my novel drying "machine particularly adapted for dryin a j fabric such assilk, piece goods, chi von', rayon or other delicate material.

In 'thisconstruction Ionly add the feed roll 71 carried by the shaft 72 and the feed roll 73 carried by the shaft 74 and meshing with or frictionally driven by the roll-75 on the shaft? 6 which also carries the pulley 7 7 over which passes the belt 78 which also passes we the pulley 79 carried. by the shaft c'arriei idle sprocketwheels 81 e sprocket wheels 53 at rtion of Figure 1), over ing' the space'between the-apr01 ia'50 and50 I carried by'the-sprocket chams'35 and 48-as-; indicated'by the arrow" 82. B regulating the s ed of rotation ofthe roll 5, the s (L aw ich the cloth .70 is 'fed on propell can be controlled to synchronize with-thespeed of the

sprocket chains

48 and 35 travelling over the sprocket wheels 28 and the sprocket rims.27 carried thereby. At the-outlet'end of the machine-I provide a take'up-roll- 84 l over" which the dried cloth 70 passes before "reaching the truck or other receptacle 85.

Theroll 84 is carried by a shaft 86 which: also carries the alloy "87- over which passes thc belt 88 wh'c passes over thepulley carried by the chainsthe shaft 90 which carries the idle sprockets- 91 "(corresponding to the idle sprockets 53 at .the right hand portion ofFig. 1) whereby the cloth 70 is drawn out contacting with the sprocket chains 48 and the apron 50 carried thereby by making the length of the cloth 70 found at any one time between the aprons 50 and 5Q vcarried by the

sprocket chains

48 and 35 slightly less than the circumference of the outer sprocket wheels 28. The cloth 70 is also prevented from contacting with the apron 50*. carried by the sprocket chains 35 by the blast of hot air which is blown throughthe cloth 70 by the fan'wheel22 which tends to maintain the cloth 70 drawn taut as will be understood from Figure 4. By this novel arrangement the cloth 70 is dried free of wrinkles, creases or markings since it is protected from all contact with solid objects while it is in the moist condition. In other words while the delicate fabric 70 is being dried it is practically suspended in a stream of hot air with no physical contacts whatsoever.- The advantage of method of suspending the cloth 7 0 from transverse rods or poles in loops, is obvious since by this latter practice the cloth 70 carried what is known as stick max-kin was liable to get wrinkled and'was only super- 1 ficially subjected to hot air instead of-having a blast of hot airpassing through 'it.' In

' fact the force of the air blowing through the cloth 70 is suificient' to smoothen outany wrinkles or creases that may exist in the cloth before reaching the sprocket wheel 27.

-While I have shown in the accompanying drawings, a' single drying machine, it is' to be understood that it-is within the scopeof my invention to provide a series of

sprocket wheels

27 and 28, overwhich will pass a continuous pair of sprocket chains .48, there being a corresponding series of sprockets 34, 38,-

38* and 42, with sprocket chains 35 passing thereover for each .pair

ofsprocket wheels

27 and 28 so that the stock 61 or cloth 70 be ing dried may pass over a series of fan wheels 22and be dried in successive stages. Furthermorc,1 t is within the scope of my inventionto st, arrange the series of

sprocket wheels

27 and 28 andth'eir adjuncts that the cloth orv stock 61 or .70 maynot onlybe dried in successive stages but that it may, after having beenthoroughly dried, be slightly" humidified prevent the cracking or'other'damage.

that might result to the -fiber of the materialbeing 'dried from excessive'dehydration.

It-will further be apparent that while I 't I have shown"my novel dryingfmachine adapt- 515 this method over the heretofore prevailing ed for the purpose of drying stock, such as cotton. wool, or pulp, etc., and for the purpose of drying cloth such as rayon or chiffon, etc, it is within the scope of my invention by effecting various slight changes which are not a part of the invention, to'adapt my novel drying machine for the purpose of drying any desired material.

Having thus described my invention what I claim is new and desire to secure by Letters Patent is 1. In a device-of the character stated, a housing, a fan wheel rotatably carried thereby. a pair of sprocket wheels at each end of said fan wheel, said pairs otsprocket wheels being revoluble, independently of said fan wheel, endless sprocket chains engaging said sprocket wheels, endless aprons carried by said sprocket chains, means for revolving said fan wheel, and means for actuating said sprocket chains to propel s'ald aprons around said fan wheel.

2. In a device of the character stated, a

' housing, a fan wheel rotatably carried thereby, sprocket wheels of different diameters at each end of said tan wheel, said sprocket wheels being revoluble independently of said fan wheel, endless sprocket chains travelling over said sprocket wheels, endless aprons carried by said sprocket chains, means for re volving said fan wheel, means for actuating said sprocket chains to propel said aprons around said fan wheel, and means for regulating the speed of said aprons independently of the speed of said fan wheel.

3. In a drying machine of the character stated, a housing, a fan wheel rotatably carried thereby, sprocket wheels of different diameters rigidly secured in spaced relation to each other at each end of said fan wheel and revoluble. independently of said fan wheel,

endless sprocket chains travelling over said sprocket wheels, endless aprons carried by said sprocket chains in spaced relation to each other, said aprons being'adapted to receive the material tobe dried therebetween, means for revolving said fan wheel and means for actuating one of said sprocket chains, to propel said aprons around said fan wheel in spaced concentric relation to each other.

4. In a drying machine. of the character stated, a housing, a fan wheelrotatahly carried thereby, sprocket wheels rigidly secured together at each end of said fan wheel and rpta-table independently of said fan wheel, sprocket chains engaging said sprocket wheels, endless aprons carried by said sprocket chains in spaced relation to each other and adapted to receive the material to'be dried therebetween, means for revolving said fan wheel, means for actuating one of said sprock et chains to propel said aprons around said fan wheel in concentric relation to each other, and end guards'disposed between the peripheries of said aprons for preventing the wheels, and closures at either endv of said fan wheel for forcing the air blown by the latter through said aprons.

6. In a drying machine ofthe character stated, a housing comprising a heating compartment and a drying compartment, :1 heating element in said heating compartment, a

fan wheel in said drying compartment,

means for revolving said fan wheel, air ducts leading from said heating compartment into said fan wheel, air ducts leading from said drying compartment back into said heating compartment, means for revolving the material to be dried around said fan wheel, an air outlet insaid drying compartment and an air inlet in said heatin compartment.

7. In a device of the c aracter stated, a

housing, a fan wheel rotatably mounted. therein, a sprocket wheel at each end of said fan wheel rotatable independently of the latter, a sprocket rim of a slightly lesser diameter than, and carried rigidly by each of said sprocket wheels, bafile plates carried by said sprocket rims in proximity to the periphery of said fan wheel adapted to deflect t e air blown by said fan wheel, endless sprocket chains engaging said sprocket wheels and rims, endless aprons carried by said sprocket chains adapted to travel around said fan wheel in spaced relation to-each other and to receive the materialto be dried therebetween, and means for propelling said aprons around said fan wheel independently of the rotation ofthe latter.

8. In a device of the character stated, a housing, a fan wheel rotatably mounted therein, s rocket wheels at each end of said fan wheel endless sprocket chains engaging said sprocket wheels, means forpropellmg said chains, endless aprons carried by said chains adapted to be propelled around said fan wheel in spaced concentric relation toeach other, and to receive the material to be dried therebetween, and means carried by one of said aprons adapted to coact with the juxtaposed operative surface of the other of said aprons for removing the material being dr1ed from said last mentioned apron after a complete revolution of said aprons around said fan wheel.

9. In-adevice of the character stated, a housing, a fan wheel. rotatably mounted therein, means for drivin the latter, idle inner and outer sprocket w eels mounted in said housing at each end of said fan wheel,

said inner and outer sprocket wheels being.

rigidly secured together and rotatable as a unit independently of said fan wheel, endless inner sprocket chains engaging said inner sprocket wheels, endless outer sprocket c ains engaging said outer s rocket wheels, endless a rons carried b3 inner and outer sproc et chains an around said fan wheel in spaced concentric relation to each other, and means for propelsai v .ling said inner sprocket chains independently endless sprocket chains of the rotation of said fan wheel.

10. In a drying machine -of the character stated, a houslng, a fan-wheel rotatably carried thereby, means for revolving said fan wheel, sprocket wheels carried b said housing'in operative relation to sai fan wheel,

said sprocket wheels, means for propelhngsaid sprocket chains endless aprons carried by said rocket chains adapted to travel around said fan wheel in spaced relation to each other to receive the materialto be dried therebetween, means for feeding said material into the space between said aprons and means for withdrawing said aprons after a complete revolution of said material around said fan wheel.

11. In a device of the character stated, a housing, a fan wheel rotatablycarried there'- by, s rocket wheels at each end of said fan whee said sprocket wheels-being revoluble independently of said fan'wheel endless sprocket *chains engaging said sprocket wheels, endless aprons carried by said sprocket chains,, means for revolving said fan wheel, means for actuating said sprocket chains to propel said aprons around said fan wheel.

BERTRAND A. PARKES.

adapted to travel