US1523514A - Drum support and detachable driving connection for washing machines - Google Patents

Description

' Jan. 20, 1925,y v1,523,514

F. W. CARPENTER DRUM SUPPORT AND DETACHABLE DRIVING CONNECTION Fon WASHINGMAGHINES Filed Aug. 7, 1922 a 9 l liatented dan. 2G? i925.

all

FRANCIS W. CAR-FENTEB, ST. PAUL, MINNESOTA.

DRUM SUPPORT AND ,DE-T aonnrsnn nait/'rive CONNECTION non WASHING I Mael-nuns.

Application filed August 7, 1922.

T 0 all @071cm t may concern:

Be it known that L FnANoIS lV. CARPEN- TER, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of ls/Iinnesota, have invented certain new and useful Improvements in Drum Supports and Detachable Driving Connections' for Washing Machines; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it lzcipertains to make and use the same.

y present invention relates to washing machines of the rotary drum type and 'provides an extremely simple and highly ellicient drum support and driving connection that permits the drum to be quickly and easily detached from or attached to the driving connection. Generally stated, the invention consists of the novel construction, arrangements and combinations of parts hereinafter described and defined in the claim. A, companion application filed by me of even date herewith and entitled Washing machine. illustrates a novel mechanism for rotating the drum alternately lirst from one direction and then the other, but the present application is applicable in connection with any suitable drumrotating mechanism.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a vertical section taken centrally through the tank casing and drum of the washing' machine of the rotary drum type, some parts being shown in full and some parts being` broken away;

Fig. 2 is a fragmentary section taken approximately on the line 2-2 of Fig. 1;

Fig. 3 is a fragmentary section taken approximately on the line 8 3 of Fig. 1; and

Fig. 4 is a detail in section on the line 4-4 of Fig. 3. showing also a portion of the tank and drum-driving shaft.

The tank 5 of theY washing machine is preferably an approximately semi-cylindrical sheet metal structure placed within a sheet metal casing or cabinet 6. The upper edges of the vertical plates of the case 6 are shown as reinforced by angle bars 7 and the tank 5 is provided with outturned flanges that rest on these angle bars. Clamping bars Serial No. 580,382.

8 are placed on the outturned flanges of the 55 tank and machine screws 9 are passed through said clamping bars, said outturned flanges and the inwardly projecting flanges of the angle bars 7. This construction very securely anchors the tank to the case and makes the same readily detachable from said case.

cylindrical drum 10 that works within the tank 5 and rotates on a horizontal axis, may be of any suitable structure but7 as shown. is made up of sheet metal heads and al perforated sheet metal cylinder that will be formed with the customary door. One head of the cylinder, at the axis of the drum, has an outwardly projecting trunnion 11 and to the outer surface of the other drum is rigidly secured a bearing plate 12 that has an outstanding triangular coupling flange 13. rlhis triangular flange preferably forms the out-line of an equi-lateral triangle, the center of which is at the axis of the drum. One of the three sides of the triangular flange 13 is reduced in width so that it preferably has only about one-half the width of the other two sides, (see particularly Figs. 3 and 4D, and this is done for an important purpose which will presently appear.

To receive the trunnion 11, the adjacent side of the tank 5, on its inner surface, is provided with a rigidly secured bearing 14 that is provided with an upwardly flaring trunnion seat preferably afforded .by a flange 14a that not only diverges upwardly but rccedes from the drum head toward the adjacent side of the tank.

For rotating the drum, a driving shaft 15 is extended through that side of the tank 5 that is adjacent to the triangular flange or seat 13. To afford a water-tight journal for the shaft 15 in the side of the tank, I provide a bearing hub 16 which has a packing gland 17 and a pocket 18, which latter is adapted to contain a suitable packing material. The bearing hub 16 has an outstanding` flange between which and the adjacent side of the tank 5 is interposed a suitable gasket 19 which may, for example, be of a material known as rainbow packing. Clamping screws 20 are passed through perforations in the outstanding flange of the hub 16 and through relatively large holes in the side of the tank and are Screwed into an. annular metallic clamping ring `271:

sunk into said head and screwedinto aseat.

at the end of said shaft. Also, an oblique key 24-.is.seatedfin the taperedv portions of theshaftandhead, (see Fig. /i). This means secures the: driving head vto-the driving shaft inamanner that will prevent any slack or looseness between the two, even under the considerable strains produced byV reversal of the drum-driving mechanism.

The novel relative arrangementl of theV parts ydescribed vand the importance Vthereof will be observed particularly by: directing attention to Fig. 1, ,but-here it'will be noted thatl when the. drum .is in horizontal working position, as shown by ,fulllines in said view, the @trunnion 11 will vfind la suitable bearing in .the Acrotch of thel fiangel'ta and the .tri-

angular flange .13 will then be telescoped completely around, will ,rest'upon and will be rotativelv interloeked 4to the triangular driving head 22 so that when y.the shaft l5 is rotated, y;the drum will be rotated therewith regardless of th'edireetion in which said shaft'is rotated."

.VVhenrit is -desiredg to remove the drum from operative position yand to take the same out ofthe tank, the drum' is stopped in position with the reduced portion 13a of the triangular flange 13 at ythe bottom'or turned downward into a horizontal position, vas shown in thedrawings. Vhen .thisis done, the drum, may be moved first by tilting` the same inthe position indicated by .dotted linesv in Fig. 1, which -ca-rries the reduced flange 13a slightly inward of., the innery face of the triangular head 22, thus permitting the drum to be lifted out'ofpthe tank. Y

Then the drum is to be applied in the tank and coupled with the driving` shaft, the operation will be reversed, that is, the drum will be lowered while tilted into a position indicated by ldotted linesin- Fig; 1,-land then the trunnion-equipped end of the drum will be dropped down to its seated position in the openv seat afforded-inthe flange 14a, and this latter operation carries the reduced Harige 13 under the lower vsurface Yof ythe driving head 2Q, thus interlocking` said' drum forrotation with vthe driving shaft A15.

. This construction, while very simple, has beenv found very efficient for the purpose had `in view. 'It isstrong and durable and has no partsthat will Vget out ofpoperative condition. It permits A-the'drum to be very quickly vandeasily appliedv inlivorking position er removed from working' position.

Wfhat I claim is: Y Y

The combination "with va tank'an'd a ro# tary drum, of a driving shaft :extended throughV the sideof said tank and provided at its inner -end lwith a triangulardriving i' heath-said d-rumat the axis of one head 'having a trunnion andthe vadjacent wallof said tank havingan openA seat affordinga 'hearing for said trunnionyvsaid drum at the axis of its other head having-'a triangular'seat' formed by a triangular outstandingiiange, one ofthe-walls of-'which flange is of greatly reduced width,- which -flange -detachably Yfits around said driving-head, its reduced =wall permittingsaid flange to be disengagedffrom' said headl and the drumto bedetached from said I drivin shaft :and j removed from` 'said' tank, first fby' lifting they trunnion-eq'uipp'd end'of said drum to axially incline theidrum and then lifting said drum'ifromV position.

In' testimony whereof I affix my signature.

FRANC/rs W. CARPENTER

Images