US1670387A - Mangle - Google Patents

Description

May 22, 1928. v H. A. SPERLICH ET AL MANGLE Original Filed Sept. 6 192 '7 Sheets-Sheet l I INVENTOR.

A ORNEY- May 22, 192s.- 1,670,387

H. A. SPERLICH ET AL MANGLE Original Filed Sept. 6, 1921 7 Sheets-611991. 2

\ iiiiiiiiiHiIHHHM INVENTORS I ATTO EY.

May 22, 1928. 1,670,387

N H. A SPERLICH ET AL MANGLE i H!WWWNIH O o LHJJHJLHJILIImU INVENTOR.

. ATTORNEY.

May 22, 1928. 1,670,387

H. A. SPERLICH ET AL MANGLE Original Filed Sept. 6, 1921 7 s s t 5 A TTORNE Y.

May 22, 1928. v 1,670,387 H. A. SPERLICH ET AL MANGLE Original Filed Sept. 6, 1921 7 Sheets-Sheet 6 I N [TEN TORS I I 7M.%

, BY ,4! r

Z Mid/ha ATTORNEY.

Patented May 22,

uN Ta-o STATES r'pxralvr OFFICE.

mama mnnrcia am; Jonannas Harman onus, or nnraorr; moment.

MA NGLE.

application fled September 8, 1821, Serial No: 438;,708. Renewed August 28, 1987 I Th1s 1I1V6Ill310l1 relates to that type of ironing machines in which the dampened clo es are drawn over .a smooth heated surface by means of a padded roller, and the object of this invention is to produce a mangle of this character in which the stationary surface shall be substantially horizontal and be heated in the most economical manner, .in

which the padded roller may be caused to move substantially vertically away, from the heated surface by mechanism connected to the operating motor upon the application of minimum ressure to a control lever, and in which file outer surface of the padded roller is so freel riod of time that any moisture" absorbed y the paddin thereon while in contact with the work as ample time to eva orate before again coming 'in' contact wit .wet

clothes. I

This invention consists of a hor zontal padded roller andmeans'to rotate it, of a smooth shoe mounted below the roller and means to heat the shoe, the upper surface of theshoe being cylindrical and substantially conforming to the roller, of mechanical means to elevate the'roller, and of a control device actuated by the operator for caus' the means for rotating the roller to drive t e means for elevating it. I

It further consists of. manually operable means for elevating the roller independent of the mechanical means therefor.

-. It also consists of mechainical means-for returning the roller into contact with the shoe upon the succeeding; actuation of the control device by the operator.

It also consists in the details of constructionillustrated in the accompanying drawaperspective 'viewof ings and claims. y In the accompanying drawings, Fig. 1 is t is improvedmangle.

Fig. 1 is a detail showing the spring to return a pedal. Fig. 2 is a detail of the gears to drive the padded roller. Fig. 3 is an elevation of the left endof the mangle,

the cap over the end of the frame being removed. Fig. 4 is a centralvertical trans verse section of the'roller, shoe and burner, seen from the right. Y Fig. 5 is an elevation from the right of the mangle, parts thereof being broken away to show. the details: Fig. 6 is a Ion itudinal section of the left end of the mang e. Fi 7 is [a similar'section of l the right end 0 the machine. 'Fig. 8 is a exposed for a maximumparticularly pointed out in' the Similar reference 'characters refer to like parts throughout the several views.

The present mangle is provided with legs 1, preferably bent from roperly rolled bars, connected by the cross ars 2 as shown in Fig. 1'. Pivoted -to the front legs is a treadle 3 to which the lower' end'of the control rod 4 is connected. Cross rods.5 may be used to stiffen this structure Carried by the central transverse tops 6 of the legs are the end frames 7 and 8 betvgeen which the stationary shoe 9, shown in cross section in Fig. 4, extends, its end flanges lO being secured to the frames by the bolts' 11.

he upper surface 13 of this shoe conforms,

substantially through the greater art of its width to the pad 14 on the rollerl lmwhich is secured on the shaft 16 and is rotated therebyi'nthe direction indicated 'by the arrow in Fig. 4. The front edge 17 of the shoe is cut away to form a cylindrical-surface to freely admit the articles to be ironed, and a feed board 18, having end flanges 19,

is secured to the end frames, as indicated in proper introduction of Fig. 4, to facilitate the clothes. I

.- The burner pipe 21 extendsbeneath the.

shoe and has jet openings 22 'which cause the flame to pass along the bottom of the shoe,

pins 23 extending down from the shoe into the flame to render the flame more=elfec- Qtive. A'shell 24 extends beneath the shoe and burner tube and its openings 25 and 26 cause the flame to move transversely of the-shoe. Any desired; valve mechanism 27 (Fig. 6) may be'employed, The lip 28 on thiscasingprevents the article being ironedfrom closing these openings 26 butdoesnot prevent the hot gases from'passing through may remain therein. 6 v

The roller shaft 16 is mounted in bearings 30 and 31.which are slidable in slots 32 and 33 in the, frames. These bearings are movable'up and down inthe slots by means'of the eccentric 34 at the right end of the machine and the crank 35 and crank pin 36 at part roller-control shaft 3738 whose operthe', clothes to finally dry out the steam which the leftend, both being mounted on the twoation will be described farther on. This shaft 37-38 is in two parts for convenience of manufacture and assemble and rotates one half turn at each actuation of the control mechanism therefor The connecting rod between the crank pin 36 and the bearing 31 for the left end of the shaft 16 is largely a spring, 40 which is screwed onto a spirally grooved hub 41 on the bearing 31 and on a spirally grooved hub 42 of the eye 43 into which the pin 36 extends. These two hubs are kept in alinement by a rod 44 slidable therein. This spring and its mate at the other end of the maclnne determine the pressure of the roller 15 against the shoe and while normally tight, these springs expand to permit the roller to yield sufliciently to allow clothes to ass through the machine. Should any clot es become bunched, a touch on the control device causes a half-rotation of the control shaft and an elevation of the roller, while a second half-rotation -of this shaft returns the roller to operative position. The eccentric yoke 46 on the eccentric 34 has a spirally grooved hub 47 which receives the spring 40 at that end of the machine and the action is similar to that just described.

The frame 7 has a. bracket 49 ouwhich the electric motor 50 may be mounted, and its shaft 52 is mounted in the bearing 53 carried by the removable front plate 54 of this frame. On this shaft is a worm 55 which meshes withthe worm gear 56 attached to the sleeve 57 which is loose on the part 37 of the control shaft. I have shown (in Fig. 7) this worm gear screwed onto the outer end of the sleeve, a toothed clutch disk 58 screwed onto the inner end of the sleeve, and a sprocket wheel 59 formed on the sleeve intermediate its ends, but these parts may all be integral if desired.

A pin 61 is mounted in the upper end of the frame 7, as indicated in Figs. 5 and 7, and the yoke 62 thereon carries a drive shaft 63 at its lower end, to which the sprocket wheel 64 and pinion 65 are connected. A chain 66 connects the sprocket wheels 59 and 64 and the pinion meshes with the gear 67 on the end of the roller shaft 16. The grooves 32 and 33 in which the bearings 30 and 31 are slidable are curved around the axis of the shaft 63 as a center when that is in a position shown in Fig. 5, when the pinion 65 meshes with the gear 67. This permits the roller shaft to he moved up and down without disengaging the driving gears therefor. The are through which the shaft 63 swings has no effect 'on the engagement of the sprocket chain and its wheels.

Mounted in the frame 7 is another shaft 69 on whose outer end is a handle 70 by which this shaft may be turned. On the inner end ofthis shaft is a cam 72 which 1 engages the yoke 62 and normally holds it in the position shown in Fig. 2, but when the handle is swung to the left in Fig 2, to free this yoke 62, the weight of the yoke and the pressure between the driving gears causes disengagment of the gears so that this handle controls the rotation of the roller.

The mechanism which connects and disconnects the control shaft 3637 to and from the motor and notched clutch disk 58 is as follows. Mounted within the frame. 7 on the shaft 37 is a. clutch frame 74 in which a clutch head 75 is rotatable in the direction of the arrow thereon in Fig. 5. Endwise movement of this clutch head 75 is prevented by the clutch disk 58 and by the eccentric 34, while endwise movement of the clutch frame is prevented by the clutch head 75 and the eccentric 34. Rotation of the clutch frame is revented b a lug 78 on the bracket 79 which lug exten s into a notch 80 in the clutch frame 74. The clutch head is provided with guides 76 between which are the T sha ed roovesinwhich the clutch keys 77 are slldab e. I prefer to form the rear walls of these slots radial and while the inner ends of the clutch keys are of the same thickness as the .clutch disk 58, the

shoulders 75 thereon project above the plane of the clutch head and frame. See Fig. 10.

The clutch keys 77 are normally in the position shown in Fig. 5. Whenever the treadle 3 is depressed, the control rod 4 pulls down the control lever 82 (Fig. 5), which is pivoted at 183 on the bracket 79 which is attached to the frame 7. This action causes the arm 188 on this lever to compress the spring 85 and to force the pin 86 inwardly. A pin 87 on the clutch frame supports the latch 83 which has an arm 84 in the path of the pin 86 and a hook 88 adapted to engage the end of the latch finger 89 which is pivoted on the pin 90 carried by the clutch frame. A spring 91 extends up from a. lug 92 on this latch finger 'to the pin 93 on the latch 83 to normally hold down this latch, while a second spring 94 extends from this lug 92 to a pin 95 on the clutch frame. Cams 96 are formed on the clutch head to return the latch finger to normal position.

\Vhenever the roll 15 is to be raised, the threadle 3 and the control lever 82 are depressed, the pin 86 is forced inwardly against the tension of the spring 85, the latch 83 is swung on its pivot against the force of the spring 91 and the upper end of the latch fin er 89 is released from the hook 88. The atch finger is now swung toward the shaft 37 by the spring 94 and as the latch finger bears against the adjacent clutch key 77 this key will be moved into the next notch 97 in the clutch disk 58 and this results in the clutch head 75 being carried around by the clutch disk. As

shown in Fig. 7, the clutch head and the eccentric 34 are secured to the outer part 37 of the control shaft by the key 98 so that In order to release the control shaft from the motor, the following described mechanism is employed. See Figs. 5, 9 and 10. Extendin over the clutch head is a plate 99 secure to lugs 100 on the'clutch frame, which plate carries apin 101 on which the small cam arm 102 is mounted to swing in the path of the shoulders v75 of the clutch keys 77. A lip 103 on this cam arm extends up above the plate and receives one end of the spring 104 which connects to the outer end of the cam arm 102,. while a h 105 on the plate extends down into the pat of this cam arm.

Whena clutch key 77 reaches the cam arm 102, its. inner end is in a notch 97 in the cam disk 58" and its shoulder 74 slides along theouter surface of the cam arm 102 and swings that "arm inwardly. until the ,pull of the spring 104 is sufliciently reat to overcome t e friction of the key 7 in its notch or until the arm 102 en ages the lip 105 on the plate 99, when further rotation forces out the clutch. key. In either case, the spring 7 and 8, the inner ends of the levers being beneath the bearings 30 and 31 and the outer ends connecting to the rods. 114 which. extend down tothe yoke 115 pivoted to the cross bars 2,- as shown in Fig. 1. One arm 116 of this yoke extends forward so that the operator may step onto its forward end and thus force up the roller against the pull-of the springs sufliciently to release goods between the roller and shoe. In order to.

hold the roller 15 elevated, the arm 116 may be formed with a notch 120 which may receive the edge of the adjacent leg 1 when this upm is depressed and swing sid'ewise to permit such enga ement. This may be important to save tl As soon as the motor starts running again it lifts the roller so much higher than does the arm 116 that theload is removed there'- from which permits the spring 121-to swing the yoke 115 to normal osition. This yoke is preferably formed 0 a central tube with 1e padding on the roller.-

its ends. bent forward and this tube is mounted on a rod 122 extending between the side bars 2 as shown in Fig. 1.

As the operator stands before the machine, both hands are .free 'to spread the work so they will pass between the shoe and roller, the work-falling. onto the table 110 and therefore being convenient to the operator should a' second passage be desirable.

The roller is" entirely free from-the work 104 swings out the cam arm 102 immediately for about three fourths of its circumference,

after the key 'is released and holds this key from accidental engagement in a notch in the clutch disk. After the clutch head has turned until the key no'longer engages the a vertical plane is'suflicient to with a hole 118 and the late .finger 119 extending into this hole.

cam arm 102, the inclination of the key ,on

4 prevent inward movement thereof.

When the clutch head has turned about Two stop lugs 108 and109 are provided on the clutch frame 74 to prevent rotation of the clutch head, the former preventing forward rotation and the latter rearward rotation of the clutch head when the clutch keys are; in their outward positions shown in Fig. 5. A table 110 may be attached to the-tops of the legs if desired.

To prevent clothes being burned should the motor stop while suchclothes are between the roller and shoe, a pair of levers 112 are mounted on pins 1131-on the frames which permits the moisture in the padding to evaporate freely, there being no shield or obstacle to prevent. such evaporation. .Should the goods become bunched,-'slight pressure on the treadle 3 instantly causes the roller to rise to free the work and permit the goods to be straightened out. With eight teeth in the clutch disk 58, the pinion 65' one eighth the diameter of the gear :07, and the'sprocket wheels at the ratio of 7 to 10, the roller 15 may turn through from thirty to forty degrees from the time/the pedal '2 is depresseduntil the roller reaches. its maximum. elevation, orin time, a small fraction of a second.

The details and proportions of the various parts may all bechanged by those skilled of our invention as ing claims.

VYe claim p 1. In a mangle, the combination of a pair of side frames having guide slots, bearings slidable in said slots, a shaft rotatable in the bearings, a roller on the shaft, a shoe extending between the frames and fitting said roller, means to heat the shoe, a motor, a control shaft, clutch mechanism between the motor and controlshaft, driving mechanism between the motor and the roll shaft, a pair of eccentrics on the control shaft, resilient connecting devices between said se forth in the followeccentrics and the bearings for the roll shaft 1 whereby the roll may be elevated or pressed against said shoe, said rods embodying end bearing members and springs connecting them, and manually operable means to cause the 0 eration of the clutch..

2. n a mangle, a pair of frames having upright guide slots, legs for said frame, a

roller and bearings therefor slidable in said bearings therefor, a shoe below the roller and means to heat the shoe, a driving shaft and means to rotate the shaft, a swinging yoke to support the shaft, a inion on the shaft, a gear connected to t e roller and adapted to mesh with the pinion, and manually operable means to swing said yoke to move the pinion into and out of mesh with said gear.

4. In a mangle, a horizontal roller and bearings therefor, a frame having slots to receive said beanings, a shoe below the roller and means to heat the shoe, a driving shaft and means to rotate the shaft, a swinging yoke-to support the shaft, said yoke being pivotally supported on the frame, a pinion on the shaft, a gear connected to the roller and adapted to mesh with the pinion, manually'operable means to swing said yoke to cause the pinion to mesh with said gear, and

means to move said roller into and out of engagement with the shoe.

5. In a mangle, a horizontal roller and bearings therefor, a'frame having slots to receive said bearings, a shoe below the roller and means to heat the shoe, a driving shaft and means to rotate the shaft, a swinging yoke to support the shaft, said yoke being pivotaLly supported on the frame, a pinion on the shaft, a gear connected to the roller and adapted to mesh with the pinion, manually operable means to swing said yoke to cause the pinion to mesh with said gear, and means to move said roller into and out of engagement with the shoe, said slots being arcuate with the axis of the shaft as a center when the pinion and gear are in mesh.

'6. In a mangle, the combination of a pair of side frames havin guide slots therein, bearings slidable in said guide slots, a shaft rotatable in the bearings, a roller on the shaft, a shoe extending between the frames, means to heat the shoe, a motor to drive the shaft, motor driven means to raise the roller from the shoe, a lever pivoted on each frame and having one arm extending under the adj acent shaft bearing, but disconnected therefrom, and a lever connected to said levers to actuate the same to raise the roller from the shoe independently of said motor driven means.

7. In a mangle, a horizontal roller and a shaft therefor, an electric motor to drive the roller, bearings for the ends of the shaft, :1. shoe below the roller andmeans to heat the shoe, a control shaft below the shoe and eccentric members thereon, resilient connectin devices between said eccentric members an the bearings for the roller shaft whereby the roller may be raised or lowered as the control shaft is rotated said connecting devices comprising bearing members and springs between them, and means for intermittently connecting the motor to the control shaft. I

8. In a mangle, a horizontal roller and a shaft therefor, an electric motor to drive the roller, bearings for the ends of the shaft, 9. shoe below the roller and means to heat the shoe, a control shaft below the shoe and eccentric members thereon, resilient connecting devices between said eccentric members and the bearings for the roller shaft whereby the roller may he raised or lowered as the control shaft is rotated said connecting devices comprising bearing members and springs between them, and means for intermittently connecting the motor to the control shaft comprising a clutch and means to disengage the clutch at each half rotation of the control shaft.

9. In a mangle, a horizontal roller and bearings therefor, an electric motor, a shoe below the roller and means to heat it, a sprocket wheel driven by the motor, a gear connected to the roller, a pinion meshing with the gear, a second sprocket wheel connected to the inion, a chain connectin the sprocket whee s, guides for the roller earings wherein they may be moved up and down, and means operable b the motor for moving the roller toward an from the shoe.

10. In a mangle, a roller and bearings therefor, an electric motor, a shoe below the roller and means to heat it, gear mechanism connecting the roller and the motor whereby the motor may drive the roller, guides for the roller bearings wherein they may be moved up and down, means operable by the motor for moving the roller toward and from the shoe and means to keep said gear mechanism in mesh while said roller is being moved toward and from the shoe.

HERMAN A. SPERLICH. J OHANNES HERMAN UHLIG.

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