US1345083A

US1345083A - gerli and

Info

Publication number: US1345083A
Authority: US
Publication date: 1920-06-29
Anticipated expiration: 1937-06-29

Description

P. GERLI AND O. A. ROSS. APPARATUS FOR RECLAIMING SQLVENTS.

APPLICATION FILEQ MAY 4,1918.

Patented June 29, 192 0.

2 SHEETSSHEET 2.

CQNDEN'SEIZS GASOMETEP.

as a; 39 7106 l I I 41 W MW INVENTOR5 wwrrokmws.

55 y operation, a preliminary description of the OFFICE.

PAUL GERLI ANDOSCAR A ROSS, OF NEW YORK, N. Y,

APPARATUS FOR 'RECLAIMING SOLVENTS.

specification of Letters Patent. Patented J e 29 192 Application filed May 4,1918. Serial No. 282,505.

To all whom it may concern: a I

Be it known'that we, PAUL GERLI and OSCAR A. Boss, citizens of the United States of America, residing at New York city, 1n the county of New ork and State of New York, have invented a new and useful Improvement in Apparatus for Reclaiming Solvents, of which the following is a specification.

The lnvention upon Wh1Ch 1S based our present application for Letters Patent, pertains to a system for recovering volatilesolvents employed in compounds used for treating fabrics, or similar materials.

Primarily, the object in view is to furnish a device whereby the solvent of a compound for treatment purposes is entirely recovered by gasifying said solvent, thereafter condensing it into a liquid whereby it can again be employed as a solvent of materials for treatment purposes.

It is further the aim to provide'means whereby the solvent may be gasified at a low temperature thereby avoiding destruction or changing of form of material due to excessive heat which ordinarily might be required to drive off said solvent.

It is further the aim to provide means to. automatically control the movement of material to and through the treating apparatus employed incur-improved system. Also to automatically control the functioning of the various devices employed.

All the above and other. aims sought are attained by our preferred form of apparatus, 7 which for the purposes of specific illustra tion is shown in the accompanying drawlngs, 1n Wh1ch: I

F lgure 1, 1s a sectional view of the treatment chamber causing gasific'ation of a solvent and is taken on line A -'A of Fig. 2,

Fig. 2, is a one-half sectional view of the same device taken online BB, of F ig. 1.

Fig. 3, is an end elevation of the same device taken on line C'-C, of, Fig. 1,

Fig. 4., isa diagrammatic view of the arrangement of units employed in our im-* proved system, and,

F ig. 5, is a reduced size plan view illustrating the function of certain parts of the control apparatus;

None of the apparatus, or parts employed in our system, are, or need beof any special of unusual construction, but for a more ready understanding of the-system and of its 2, are hinged parts and devices contained therein may be apposite.

0 housin or 'shell 1, supported by leg l 7

doors

3 and 4. On its unders1de is secured treatment vat5, containing.

' roller 6, mounted on shaft 7. On its inside .porting are secured bearing members 8, su gulde roller 9, and

ringer rollers

1 and 11, roller 11 being adjustable and adapted to press against roller 10 by means of spring 12 controlled by screw 13 in bracket 14.

Drippings from roller 11 are returned to ver through link 29, pivoted as 30, and

connected to controller arm 31, controls. the

speed of motor through the speed control box 32. y

Heating rolls

33, 34 and 35, are supported in ball bearings 36, secured in bearing supports 37, having stuffing boxes 38.

Rolls

33, 34, and 35, are tubular having-small outlet tubes'39," secured to the ends thereof. Said tubes 39, enter steam header 40, through. stufiing boxes 41.

The level of treating compound in vat 5, is determined byfioat valve 42, controlling the opening of feed pipe 43. Vat 5, is also supplied with drain pipe 44.

Snap switch 45, controlling suppl of energy to motor 20, iscontrolled by ever comprising a long arm 46 and a short arm 50, mounted on shaft 47. Said lever has roller 48, normally held against material 28,

by spring 49 attached to the short arm 50 of the said lever.

Housing 1, has exhaust opening 54, to, which is secured flange 52, having ipe 53.

Control unit 61, is composed 0 upper housing 62, and lower housing 64, clamped between which is diaphragm 65, to which is attached rod 63, which is secured to said diaphragm by nut 66, and washer 67 The movement of said diaphragm is under control of spring 68, the tension of ,,which is re ulated by adjusting screw 69.

ivoted to the outer end of rod 63, is lever 70, operating around pivot 71, and to the outer end of said lever are pivoted

links

72 and 73, connected to controlling levers 74 and 7 5, of

controlunits

76 and 77 for motors 78 and 79. Motor 78 drives vacuum pump 80, and motor 7 9, drives compressor 81. j

'Heat control unit 90, is composed of upper housing 91, and lower housing 92, having clamped therebetween diaphragm 93, to which is secured stud 94, by means of washer 95 and nut 96. Stud 94, operating through housing 92, is connected to lever 97, of valve 98, and through link 99, controls supply pipe 102. Said stud 94 passes'through the center of adjusting screw 104, adapted to regulate the pressure of spring 103, interposed between said adjusting screw and nut 96. Said spring is adapted to cause movement of diaphragm 93, when the pressure in chamber l00, is carried above or below a predetermined amount. Chamber 100 is connected to steam header 40, through pi e 101.

'Meter 108-registers the quantity 0 gasified solvent drawn from treatment apparatus 83. Meter 109, through pinion 110,

driven by worm 111 on roller 34, registers the quantity of material treated in said apparatus.

The operation of our system and control of apparatus therefor isas follows :Door 3 is opened and a roll as 17, of untreated material is rolled into place. as shown. Each end of material 28, on roll 17, has an apron, as 51 attached thereto, whereby the entire material on roll 17, may pass throu h the entireprocess without stopping. Te beginning apron 51, is passed over roller 9, under roller 6, between

rollers

10 and 11,-

and over and under

rollers

33, 34, and 35, thereafter being secured to shaft 18.

Door 3, is 'now closed which hermetically seals housin 1, against entrance of air thereinto. T ereafter the vacuum pump 80 is started, and steam controlled by control unit 90, is fed to heater 40, passing through pipes 29, to heater rolls 33, 34, and 35. The temperature of said rolls is automatically regulated by control unit 90, as follows It is well known that the temperature of steam varies directly with its pressure, and, therefore, that any desired temperature within certain limits may be obtained by maintaining a given pressure. Such a predetermined'pressure is maintained by heat control unit as follows :-After the desired temperature is known, and therefore the pressure required to obtain such temperature, adjusting screw 104, is regulated whereby, the pressure of spring 103, operating against diaphragm 93, permits the valve 98, through stud 94, link 99, and lever 97 to permit sufficient steam to enter header 40, whereby the ressure in said header, and therefore in

ro lers

33, 34 and 35, is such that the proper temperature is obtained. To

rollers

33, 34 and 35, header 105 is supplied 7 with a drain pipe 106, controlled by valve 107, whereby steam may be allowed to slowly escape, in this manner assuring that such condensation is avoided. Thereafter switch 55 is closed, and, as switch 45 is also closed, motor 20 rotates, and by shaft 21 and worm 22, causes gear 19 to rotate shaft 18, thereby winding up treated material 28 on said shaft.

It will be noted that due to the small diameter of the roll of material 28 on shaft 18, lever 25, maintains lever 31, in the high speed position for motor 20. As the roll of treated material 28 increases in diameter on shaft 18, lever 25 is raised causing lever 31 to likewise rise through link 29, in this manner causing said lever to move to a lower 7 speed contact as 56. The cutting in of slower speed contacts as 56, due to increase of diameter of the roll on-shaft 18, is pref- I erably so proportioned that movement of- After all the treated material has been wound up on shaft 18, and the end apron as 51, leaves shaft 16, and as its opening 57,

passes upward toward heating roller 33,'

roller 48, leaves material 28, and enters said opening 57, thereby through action of spring 49, causing lever46'to open switch 45 and stop motor 20. At the same time lever'46,

through link .58, closes a. circuit throu h swltch 59 to bell 60, calling attention to t e ing the material as 28.

Due to the vacuum in housing 1, the temperature, required to gasifythe solvent, as

fact that the machine has completed treatfor example, gasolene, is much reduced, in

this manner making it possible to treat such material as rubber, or material to be treated with rubbercompounds in a rapid and economical manner.

As the solvent is gasified by the heat of rolls as 33, 34 and 35, and the inherent heat 9 of the interior of housing 1, the gases pass upward through pipe 53, to the vacuum pump 80 and thence to the gasometer, from whence it passes to the compressor 81, where 7 its pressure is raised before entering the con- 'densers. After being liquefied by said condenser, in well known manner, it passes to r the storage tank where it remains until required for dissolving additional'treating material to be placed in vat 5.

The control of our improved system as illustrated by Fig. 4,'is as followsControl unit 61, is adjusted through screw 69, wherebywith a predetermined vacuum in chamber 82, diaphragm 65 is actuated whereby the rod 63, through lever 70, and links 72, and

73, causes control levers'74 and 75, to vary the speed ofmotors 78 and 79 whereby the speed of said motors will maintainthe speed of the vacuum pump 80, and compressor 81, such that said pump and compressor Will respectively pump and compress the gasified vapors drawn from treatment apparatus 83 through pipe 53. It is obvious that inasmaintained in treatment apparatus 83, but

also, the vacuum pump 80, and compressor unit 81, will operate at a speed proportionate to the amount of solvent being gasified, in

this manner producing an economical and automatic operation 0 the entiresystem.

It will be obvious to those skilled in the,

art that various modifications may be made Without departing from the spirit of our invention, therefore, We do not Wish to limit ourselves to the exact construction, as herein shown and described, but reserve to ourselves the right to all modifications as properly fallwithin the sphere and scope of our invention.

What We claim is I V 1. In an apparatus for reclaiming solvents from a compound used for treating a material in the form of along strip, the combination of a hermetically sealed chamber in which said material is treated, reels for carrying the material while under treatment, rolls from and onto which the material is wound, means for varying the speed of the winding reel as the diameter of the roll thereon varies so that all parts of the material will be exposed for the same length of time, means for drawing off the solvent from the compound applied to the material, means for exhausting said gasified solvent from the chamber and means for liquefying the gasified solvent.

2. In an apparatus for reclaiming solvents from a compound used for treating a material in the form of a long strip, the combination of a hermeticall sealed treating chamber, means therein or applying a compound to the material to be treated, means for controlling and regulating the supply of such compound, treated reels over which the material is carried, rolls from and onto which the material is wound, means for varying the speed of the winding reel in proportion to the diameter of the roll of material thereon so that all parts of the material will be subjected to treatment for the same length of time, means for drawing ofl from the chamber the vaporized solvent con-.

tained in the compound applied to the material, and means for liquefying said vaporized solvent.

3. In a system for reclaiming solvents from a compound applied to a treated material, comprising, a hermetically sealed chamber,-means for treating material in said chamber, means for gasif ing the solvent contained in the compoun applied'to said material, means for exhausting said gasifi'ed solvent from said chamber, means for controlling said exliausting means dependent for operation upon the pressure of fluid in said chamber, and means for liquefying said gasified solvent. 8 I

4. In a .system for reclaiming solvents from a compound the combination of a hermetically sealed chamber, means therein for gasifying the solvent contained in said compound, means for exhausting said gasified solvent from said chamber, and means for controlling said exhausting means dependent for operation upon the exhausted pressure of said chamber.

5. In a system for reclaiming solvents from a compound, comprising, a hermetically sealed chamber, means therein for gasifying the solvents contained in said, compound, means for exhausting said gasified solvent from said chamber, means for controlling said exhausting means dependent 'for' operation uponthe exhausted pressure in said chamber, and means for liquefying said gasified solvent.

6. n a system for reclaiming solvents from a compound applied to a treated material, comprising, a hermetically sealed chamber, means thereinfor treating said material, means therein for moving said material for treatment, means for actuating said moving means, and means for automatically stopping said actuating means dependent for operation on a predetermined movement of said material.

7. In a system for reclaiming solvents from a compound applied to a treated material, vcomprising, a hermetically sealed chamber, means therein for treating said material, means therein for moving said material for treatment, means for actuating said moving means, means for automatically stopping said actuating means dependent for operation on a predetermined movement of said material, and means forv indicatin theoperation of said stopping means.

8. In a system for reclaiming solvents from a compound applied to a treated material, comprising, a hermetically sealed chamber, means therein for treating said material, means for automatically controlling the flow of treating compound to said .treating means, meansfor gasifying the solvent contained in said compound after said treat ment, and means for liquefying said solvent.

' 9. .In a system for reclaiming solvents hermetically sealed, means therein for applying a compound to the material, means for controlling the movement of said material during treatment, means for gasifying the solvent contained in said compound after treatment of said material, means for exhausting said gasified solvent from said chamber, means for automatically control- I ling saidexhausting means, and means for condensing said liquid. r

In. testimony whereof, PAUL GEnLr-and OSCAR A. Ross, have signed their names to this specification this 1st day of May, 1918.

V PAULGERLI,

OSCAR A. ROSS.

gasified solvent into a 7