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Drying-tumbler.

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Publication number
US1075382A
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US
Grant status
Grant
Patent type
Prior art keywords
casing
cylinder
housing
exhaust
coils
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Richard Roost
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American Laundry Machinery Co
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American Laundry Machinery Co
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Publication date
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry driers
    • D06F58/02Domestic laundry driers having drier drums rotating about a horizontal axis

Description

R. ROGST.

DRYING TUMBLER. APPLIOATIOH FILED MAY 27, 1910.

Patented Oct. 14, 1913.

3 SHEETS-SHEET 1.

DOOO OOO R. BOOST.

DRYING TUMBLER.

Patented Oct. 14, 1913.

3 BHEETSSHEET 2.

R. BOOST.

DRYING TUMBLER.

APPLIOATION FILED MAY 27, 1910.

Lwwm, Patented 0011141913.

3 SHEETSSHEET 3.

Tfichazrd W006? gTA.

ggrnnr orrrca.

RICHARD EOOST, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE AMERICAN LAUNDRY ILVIACHINERY COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

DRYING-TUMBLER.

Specification of Letters Patent.

Patented Qct. id, 1913.

Application filed May 27, 1910. Serial No. 563,712.

To all whom it may concern Be it known that I, lirormnnlloosr, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Drying Tumblers; and I do hereby declare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, and to the numbers of reference marked thereon, which form a part of this specification.

In drying tumblersfor laundries the wetit'abrics and articles are inserted in the cylinder and dried during the rotation of the cylinder. Heretofore lIldevices of this class the construction has been such that the oporation of drying has consumed much time owing to the fact that the current of air admitted into the cylinder has not been sufiiciently diffused in the cylinder to permit all parts of the contentsto be acted upon thereby. Furthermore, in such devices a pressure blower has been employed and a blast of hot air forced into the cylinder so that in opening the machine the lint within the machine is blown into the room, and also in such devices as heretofore constructed, the rotating tumbler-cylinder is not subjected for its entire extent to the heat from the coils and the evaporation from the drying articles is unnecessarily slow.

The object of this invention is to aii'ord a drying tumbler so constructed that the tumbling cylinder is inclosed. -for nearly its entire extentwithin a ldosely fitting shield or casing through which the heat from the coils is conducted to the cylinder and within which all the heat'delivered into the cylinder is drawn downwardly and converged to the point of discharge.

It is also an object of the invention to afford a construction in which the entire cylinder and casing are at all times subjected to the source of heat -for their entire extent, thus utilizing the entire radiating and conducting sur'r'ace of the casing.

It is a further object of the invention to draw the hot air from the coils through the tumbler cylinder thereby tending to rarefy the air and greatly facilitating vaporization from the-wet contents of the cylinder.

Tlie'invention consists in the matters here inatter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a side elevation partly broken away and in section of a device embodying my invention. Fig. 2 is an enlarged transverse section thereof. Fig. 3 is a section on line 3-3 of Fig. 2. Fig. 4; is an enlarged detail view of the double door whereby access is allorded to the casing and cylinder. Fig. 5 is a diagranr' inder comprising, as shown, the head 7, at

each end thereof conveniently of cast metal with which the gudgeons are respectively integrally connected, and connecting said heads are T bars 8, which are arranged equal distances apart around the periphery of said heads and with the webs thereof directed inwardly and secured on said heads on said T bars 8, is a perforated sheet of metal 10, or other suitable material, which forms the cylindric wall of the tumbler. Said perforated covering may be secured in panels on said T bar so that any one or more of said panels-may be removed to permit. the in'ser tion of the clothes or fabric to be dried or to permit the removal thereofwhen the drying is completed, and any suitable means for engaging said panel or panels in place suffices.

Engaged on the heads 3, of the outer casin or sheet is an inner casing 11, construct ed of sheet metal or any suitable conducting material, said shell, as shown, being with out perforations and extending from near the top of the cylinder downwardly around the same and thence obliquely inwardly and downwardly to near the bottom of the outer shell or housing of the machine. Sizid shell 11, howevereis continuous at the blijttom and sides thereofand at all points 0 roughout machine, and rigidly engaged to the gudgeon 6, is journaled a shaft on which is secured a gear 13, and tight pulleys l4 and 15, and

. a loose pulley 16, the purpose being to afford a reversing drive for the tumbler by means of belts from a common drivmg source and adapted to engage. respectivelyon the pulleys 14 and 15, one of said belts being twisted as is usual for reversing the rotation of laundry washing machines and for this purpose the usual or any automatic belt shifting mechanism may be employed to shift the driving belt from either of said pulleys while the other of said belts on the pulley '16, drives the machine. Connected in the opposite end of the machine through the head thereof is an exhaust pipe 17, provided with a gate 18, therein. An exhaustfan 19, is connected with said pipe to draw the moist air out of the machine.

A long and a comparatively broad aperture is provided through the outer shell or housing of the machine and extending for the entire length thereof, and hinged near the top of said machine is a cover 21, adapted when closed to .fit to the wall of the machine approximately continuously therewith and supported on said cover and spaced therefrom by suitable rods or bars is an inner sheet or plate 22, which fits in and closes an aperture through the shellor casing 11 i The operation is as follows: The entire space in the bottom of the machine and below the casing 11, is filled with steam coils, a suiiicient number thereof being installed to afford the requisite temperature, the up permost of said coils extending well above the bottom of the cylinder. lVhcn it is des red to charge the machine the cover 21, is lifted, lifting therewith the inner cover or plate 22, and a section having been removed from the tumbler, the wet clothes or fabrics are placed in the machine and the door and cover again closed into place and secured. A certain portionof the moisture, of course, drains from the goods and this drainage is assisted materially from the fact that the clothes lying upon the longitudinal ribs in the cylinder formed by the T bars are successively lifted and rolled from said supports to fall to the bottom of the tumbler so that a large portion of-the moisture is quickly removed. During the entire operation, however, the operation of the exhaust fan has acted to reduce pressure by drawing the air laden with steam from the tumvhler and thence delivering the same outmesses 'into the cylinder from the top at the opening indicated by 23, and, inasmuch as the fan actscontinuously in reducing pressure in said cylinders, the lineof least resistance for the inflowing air to reach the discharge outletis directly downwardly through the perforated walls of the cylinder or tumbler and also laterally and longitudinally through the apertures unobstructed by the fabrics or laundry in the cylinder. The drawing of the hot air upwardly around the casing and thence downwardly through the casing affords a double heating effect. The walls of the cylinder or tumbler and the inner casing are sufficiently near together and the space therehetween varies progressively from the top to the bottom "to such an extent, as to insure the outflow of hot air through the walls of said tumbler at practically all points thereof below the middle. When it is desired to remove theclothing or fabrics from the machine, the cover 21, with the covering .22, which closes the easing adjacent the cylinder, is lifted, and a section of the tumbler removed, thereby exposing'the contents of the tumbler for removal.

Of course, a great advantage is found in the reduction of pressure by using the.ex-

haust fan'instead of the blowerinasmuch as the one tends to increase the pressure in the cylinder or tumbler, thereby retarding vaporization, while the other, to the extent that it greatly reduces pressure, greatly aids the evaporation. It also carries the lint from the machine through the exhaust.

Of course, details of construction may be varied, and I therefore do not purpose limiting this application for patent otherwise. than necessitated by the prior art.

I claim as my invention: 1

1. A drying tumbler embracing a horizontal, rotative cylinder having perforated walls, a stationary metallic casing inclosing the same and fitting closely thereto above the middle of the cylinder and extending well below the cylinder, an exhaust pipe connected in the casing belowthelcylindcr, steam coils surrouinling the bottom half of said casing, a jacket or housing inclosing the coils and easing,and partly open at the bottom, an opening in the top of the casing whereby the heated air from the coils is drawn through the cylinder and downs wardly to the exhaust pipe and means rotating the cylinder.

tending longitudinally of the cylinder. on

noes-sea the middle thereof, a metallic housing inclosing the structure as a whole and partly open at the bottom, and a door common to the housing and casingnear the top thereof and afi'ording access to the cylinder.

. 3. A drying device embracing a rotative perforated cylinder, a relatively tight casing surrounding the same provided with a close fitting door, steam coils partly surrounding the casing, ahousing inclosing the whole except at the bottom, a door in the side wall of the casing, a part secured there on serving as a door for the casing and an exhaust pipe communicating with the casing.

4. A drier embracing a housing, substantially air tight except at the bottom, a casing therein afi'ording acirculating space on all sides thereof, steam coils filling the space between said casing and housing, to approximately half the height thereof, a perforated receptacle in the casing for the articles to be dried, an exhaust pipe connected in' the casing below the receptacle, an exhaust fan connected therewith, said casing having an opening directly above the receptacle and a door common to both the housing and casing and affording access to the receptacle.

5. An exhaust drier embracing a perforated movable receptacle for turning clothes, an exhaust chamber inclosing the same, an exhaust pipe and pump communicating with said exhaust chamber near the bottom, heating coils disposed around the chamber, a housing inclosing the whole except at the bottom, said exhaust chamber having an opening in the top thereof whereby the hot air from the coils is drawn down through said receptacle and chamber by said exhaust) pump.

6. In a device-of the class described, a casing comprising end and side walls, a pertorated receptacle for turning clothes, journaled on the end walls of the casing, a casing inclosing the receptacle and fitting closely thereto above the middle of the cylinder and extending well below the cylinder, and steam coils within the casing and partly surrounding the receptacle for turning the clothes.

. In a device'of the class' described. a housing open at the bottom, a casing within the housing having an opening at its top,

a perforated receptacle in the casing, adapt,

ed to receive articles tobe dried and an exhaust pipe connected in the casing below the receptacle to exhaust the an" there'trom.

8. A drier embracing a housing, a casing therein affording a circulating space on all sides thereoit', steam coils in the space between the housing and the casing, a \,'llIl(lGl. having side walls consisting of removable perforated panels, a door in the housing and a corresponding, door in the casing atfording access to the cylinder when one of its panels is removed.

9. A device of the class described, em bracing an outer casing and an inner casing having an opening at its top, a perforated rotative cylinder within the inner casing, steam coils in the space between the outer and inner casing adapted to heat the air in the rotative cylinder, an exhaust pipe connected in the inner casing below the cylinder, and an exhaust fan connected with said pipe adapted to draw the moist air out of the inner casing and cylinder.

10. In a device of the class described, a housing comprising end *alls, side walls and a semi-circular top wall. an inner casing engaged on the end walls of the housing having an opening at its top, a perfo rated rotative drying cylinder within the casing, means affording access to the interior of the cylinder, an exhaust pipe in the inner casing below the cylinder and an exhaust fan connected wi h the exhaust pipe adapted to reduce the pressure within the casing and cylinder and thereby aid evaporation.

11. In a device of the class described. a housing comprising end walls, side walls, and a. semi-circular top wall, a perforated drying cylinder iournaled on the end walls of the housing, an inner casing secured to the end walls of the housing and extending from near the top of the cylinder downwardly and around the same and then obliquely inwardl and downwardly to near the bottom of the housing. said inner casing provided with an opening in its {01,}, means affording access to the interior of the cylinder and an exhaust pipe'and tan comiccled in the casing below the c linder to reduce the pressure within the casing and cylinder and thereby assist in the process of drying.

12. In a device of the class described. a. drying cylinder. comprising end walls, detachable paneled side walls, an exhaust pipe below the cylinder and a casing extending from near the top of the cylinder downwardly and around the cylinder and then obliquely inwardly and downwardly around the exhaust pipe.

13. In a device of the class described, an outer casing having an open bottom, a rotative perforated cylinder iournaled in said casing. an exhaust pipe beneath said cylinder. an inner casing surrounding the cylinder and the exhaust pipe. said inner casing provided with an opening at its top, and heating coils below the casing and cylinder and extending upwardly to near the middle thereof adapted to heat the air before it enters the cylinder.

1%. The combination with a rotative cylinder having perforated side walls, of a door affording a part of said side wall, a casing fitting closely to the cylinder above the middle thereof and extending below the cylinextending upwardly to near the middle thereof, a metallic housing inclosing the structure, on all sides except the bottom and means affording access to the cylinder.

15. A drier embracing a housing, substan tially air-tight except at the bottom, a casing' therein affording a circulating space on all sides thereof, a perforated receptacle in the .ca'sing for the articles to be dried, an exhaust pipe connected in the casing below the receptacle, an. exhaust fan connected therewith, said casing having an opening directly above the receptacle and a door common to both the housing and casing and affording access to the receptacle.

16. The combination with a rotative cylinder having perforated side walls, of ribs extending longitudinally of the cylinder on the inner side thereof, a casing fitting closely to the cylinder above the middle thereof and extending below the cylinder to afford an exhaust chamber, an exhaust pipe communi eating with the chamber and means exhaust ing the air therefrom. 17. A drier embracing a housing, substantially air tight except at the bottom, a casing inclosed by the housing and having an opening at the top thereof, steam coils arranged between said casing and housing, a perforated receptacle in the casing for the articles to be dried, an exhaust pipe connected in the casing below the receptacle and an exhaust fan connected therewith.

18. In a device of the class described a housing, a casing engaged within said housing and having'an opening therein, a drying casing within said receptacle comprising end walls, paneled side walls removably secured to said receptacle and means affording access to the receptacle.

19. A drying tumbler embracing a rotative cylinder, a casing inclosing the same and fitting closely thereto above the middle of the cylinder and extending well below the cylinder, an-exhaust pipe connected in the casing near'thc cylinder, heating coils surrounding a part of said casing, a housing inclosing the coils and casing, and partly open at the bottom, and means acting to draw heated air from the coils through the cylinder.

20. In a device of the class described, a drying rcceptacle comprising end walls, and detachable paneled side walls, means secured within the receptacle adapted to mix the articles to be dried, a casing sur-. rounding said receptacle and having an opening therein, heating coils arranged about a portion of said casing, a housing inclosing said casing and cylinder and a door common to the housing and easing affording access to the cylinder. l

21. In a device of the class described, a rotative cylinder having perforated side walls, ribs on the inner side thereof, a sheet metal casing fitting closely to a part of the.

drying receptacle, a casing fitting closely to the receptacle above the middle thereof and extending below the receptacle to afford a chamber, a housing inclosing the structure as a whole and provided with an opening in its bottom, and means in the housing and easing affordin access to the receptacle.

23. In a device of the class described a relative cylinder having perforated side walls, a casing fitting closely to the cylinder above the middle thereof and extending below the cylinder to afford a chamber, means exhausting the air from said chamber, a housing inclosing the structure as a whole and provided with an opening adapted to permit the inlet of air between the housing and the casing andincans common to the housing and easing affording access to the cylinder.

24. The combination with a rotative cylinder having side walls, of means on the inner side thereof adapted to mix the articlcs to be dried, a casing fitting closely to a part of the cylinder and extending away from the remaining part of said cylindex" to afford an exhaust chamber, an exhaust pipe communicating with the chainbcr, means exhausting the air therefrom, steam coils arranged about'a part of the casing, a housing inclosing the structure as a whole, a door common to the housing and casing and affording access to the cylinder.

25. A device of the class described embracing a rolative cylinder, a casing inclosing the same and fitting closely thereto above the middle of the cylinder and extending below the same, an exhaust pipe connected in the casing, heating coils surrounding a part of said casing, a housing inclosing the coils and casing, 'andopen at the bottom, an opening in the casing Whereby the heated air from the coils is drawn through the cylinder to the exhaust pipe and means adapted to reverse the rotation of said cylinder.

26. A drying tumbler embracing a rotative cylinder, a casing inelosing the same, an exhaust pipe conn'eeted in the casing, steam coils surrounding a part of said cas- RICHARD BOOST.

ing, a housing inelosing the coils and casing, l/Vitnesses:

an opening in the top of the casing whereby the heated air from the coils is drawn CHARLES W. HILLS, J12, LAWRENCE REmsTEIN.

Qpples of this patent-may be obtained for five cents each, by addressing the Commissioner 0! Patents,

Washington, D. G.

US1075382A 1910-05-27 1910-05-27 Drying-tumbler. Expired - Lifetime US1075382A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477820A (en) * 1945-11-05 1949-08-02 Smith Corp A O Clothes drier
US2550118A (en) * 1944-07-31 1951-04-24 Lovell Mfg Co Clothes drier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550118A (en) * 1944-07-31 1951-04-24 Lovell Mfg Co Clothes drier
US2477820A (en) * 1945-11-05 1949-08-02 Smith Corp A O Clothes drier

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