US1812263A - Ironing machine - Google Patents

Description

A. HAMMER IRONING IACHINE Filed on. 7. 1927 June 30, 1931.

2 Sheets-Sheet l June 30, 1931. HAMMER IRONING'IACHINE Filed Oct. 7, 1927 2 Sheets-Sheet 2 P\ x a 4 m 1 $1M w w B Q Q aw. B H lg 2 2 a. I x 3% a y m w 6 fcrred constructional form of the ironing Patented June 30, 1931 UNITED {STATES ARTHUR Hammer BERLIN, enmmm IRONING MACHINE 10 means of a machine of this kind a quick and convenientironing will be possible and in particular an easy and convenient manipulation of the sad-iron. Eurther improvements according to my invention relate to the specific construction of the sad-iron and its suspension as well' as to an arrangement whereby the lowering and raising of the sadiron may be facilitated in order to put the latter into and out of operation.

The accompanying drawings show a premachine according to my invention. In the drawings, Fig. 1 is a front view of pl cc of the operator, Fig. 2 an end view, Fig. 3 all-enlarged vertical section, and

Fig. 4 aparti'al topview of the sad-iron together with the. accessories therefor.

Fig. 5 is an enlarged iront view and Fig. 6 an enlarged horizontal section through a coupling device, said coupling device serving for raising and lowering the sad-iron by means of a motor.

Within the frame-like support 1 for the ironing machine, there is provided an ironing board of relatively great length and relatively small width, saidironing board 2 being mounted upon a proper support 1a. The

left-hand end of the ironin board 2 projects lateral view partly in considerably beyond the Moot .o f:-the. jisu'p port 1a.

The sad-iron 3 consists of a metaldisc having an upwardly projecting rim 3a, said disc being mounted upon a shaft 31) which is rotatablysupported within a bearing 30. The bearing 30 is positioned within abody 4 of bell-shaped conformation, said body 4 covv ering up said disc 3 and slightly overlapping I an ironing machine new ironing machine asseen from the" is suspended Application filed October 7, 1927, SeriaI No. 224,661, and in'Germany October 25, 1926.

the rim 3a of the disc 3 by means of a rim 4a.

' In this manner a hollow space willbe formed which serves for the reception of the heating device 11. This heating device consists of a system of pipes having downwardly directed orifices, a pipe 12 serving for supplying gas to said system of pipes. The gases which are developed by the heating device 11 may discharge through perforations 4a which are provided on-said bell-shaped bod 4. The underside of this bell-shaped b0 y is pro vided with a cover 46 of asbestos. of asbestos serves for the purpose of causing This cover 1 theheat' developed by the heating device 11 to act as much as possiblesolely towards below upon the disc 3. In order to prevent the heat from beingconducted from the disc 3 through its shaft 312, an insulating layer 3d of asbestgs is inserted into said shaft. This may be accomplished by making the shaft 36 of two parts and by providing coupling flanges on the'facing ends of said shaft. The coupling flanges, are connected with each other by means of bolts 3f having the asbestos disc 3d interposed between said flanges. The

' weight which is required in order to produce a properpressure with the sad-iron is essentially. placed into the bell-shaped body 4, while t possible. A hand-wheel 5 similar to the steering wheel for automobiles is mqunted upon the upper hub-shaped part 4a of the bell-shaped body 4.

The bell-shaped body 4 carrying the bearing for the sad-iron 3 is suspended by means of four chains or ropes 5a which are fixed at their under ends to the body 4, while their upper ends are connected to a. ring 56, which from a carriage 6. The'carriage 6 is mounted upon a rod 7 which fixed to the forwardly directed arms of two double- 'arnied levers 7a mounted at on the. forwardly overhanging u per part of the frame 1 of the machine, an extending essentially over the entire length ofsaicl frame 1. The

'rear end of the one of said levers 7a is equipped with a counter-poise 76, while the rear end of the second double-armed lever (in Fig. 1 onv the right-hand side) is connected by means of the operatingl'od 7b with e sad-iron 3 proper is made as light as a crank-pin 13, said crank-pin being mounted on a crank-shaft 15 which projects from the casing of a coupling device 14 as shown in Figs. 5 and 6, and more fully described be- 5 The sad-iron is driven by the aid of a flexible shaft 9 from the electric motor 10, which together with the transmission gear for reducing the speed of rotation of the shaft contained in the usual manner within a casing, is likewise mounted on the carriage 6 by the aid of the supporting ring 5?). Two plns 50 project from said ring towards the interior, said pins entering the casing of the motor in such a manner that the latter will be freely suspended from the ring 512.

The coupling device 14, as may be seen from Fig. 1, is provided on the right-hand side of the under part'of the machine frame 1. This coupling device serves for operating the raising and lowering mechanism for the sad-iron. The driving means consists of a small electric motor 16 mounted on the machine frame above the device 14, the pulley of said motor 16' being connected by a belt 17 with a pulley 18 provided on a second shaft 19 of the coupling device. The shaft 19 carries a gearwheel 20, as shown in Fig. 6, said gear-wheel 20 meshing permanently with a larger gearwheel 21 fast on the crank-shaft 15. The

gear-wheel 21 is fixedly connected with a pinion 22 which is loosely mounted upon the shaft, 15, said pinion meshing with a larger gear wheel 23. The gear-wheel 23 is con nected with a sleeve 24 which is loosely mounted upon a third shaft 25 of the coupling device. 'j The sleeve 24 extends through the casing of the coupling device towardsthe outside and carries at its outwardly projecting end a disc 26, which is provided with three evenly spaced bores 27. A hollow bolt 28 may be brought into engagement with said bores 27 said bolt being pushed towards the disc 26 by action of a spring 29. The bolt 28 is guided within the bore 30 of a coupling member 31 keyed to the shaft 25 and provided at its end which projects forwardly from the body 31 with a nose 32. The wedge-shaped end 33 of a bell-crank 35 mounted at 34 projects into the range of action of said nose 32 and the other end of said bell-crank 35 is connected by means of an operating rod 36 with a treadle 8, as shown in Fig. 1, said treadle being mounted in the under part of the machine frame 1 and extending essentially all over the length of the latter.

The mode of operation of the device as described in the foregoing is as follows If the pressing machine is out of operation and the sad-iron kept suspended at a certain distance above the ironing board 2, the crank-pin 13 and the bell-crank 35 of the coupling device will assume a position as indicated in Fig. 5 in full-drawn lines. If now the motor 16 is caused to operate, the shaft 25 which is connected by means of the coupling 26, 31 and the gears 23, 22, 21 and 20 with said motor 16, will rotate in the direction as indicated by the arrow and the crank-shaft 15 whose gear 38 is in engagement with the gear 37 of the shaft 25 will likewise make a rotarty motion. Prior to the first half-revolution o the shaft 25 the nose 32 on the disc '31 will engage the wedgeshaped end 33 of the bell-crank 35,,so that the coupling bolt 28 will be lifted out of the respective bore 27 of the disc '26, whereby the two members 26 and 31 of the coupling will be disconnected. In conse uence thereof also the crank-shaft 15 will be ept at rest. If it is now desired to operate the pressing machine and to lower the sad-iron 3, the operator will step on the treadle 8. .By this, the wedgeshaped end 33 of the bell-crank 35 will be moved out of the range of action of the nose 32 and the latter will thereby be released so that it will enter the nextbore 27 of the disc 26, thus again establishing and engaging the coupling between the members 26 and 31. The crank-shaft 15. will therefore be further rotated and move out of its under dead-point position by the aid of the gears 37 and 38, whereby the sad-iron will be properly lowered. After the operator has released the treadle 8, the bell-crank '35 by action of a backwardly acting spring (not shown) will again assume the position which is indicated in full-drawn lines in Fig. ,5. The nose 32 :will therefore again engage the wedge-shaped end 33 of the bell-crank 35 so that the coupling'bolt 28 will be lifted out of the respective bore 27, thus again interrupting the conmotion of the shaft 25 with the motor. In consequence thereof the crank-shaft 15 will again be kept at rest. The ratio of gearing between the gears which serve for the drive of the machine is so chosen, that the crankshaft 15 will be kept at rest in a position which is diametrically opposed to the under position of the crank 15, as shown in dotted lines in Fig. 5. a

In this manner the sad-iron may be raised and lowered as desired by operating the treadle 8 without requiring any particular effort on the part of the operator. This is of especial importance on account of the fact that the weight of the sad-iron together with its accessories is quite considerable. ing a large weight to the pressing device proper the operation of pressing will be greatly facilitated. An especial advantage of the arrangement of a rotary sad-iron consists therein that the large weight of the sadiron will hardly be noticeable during imparting a motion to the same, because the friction between the sad-iron and the surface to be ironed thereby'will'be quite considerably re duced. The weight of the suspension device for the sad-iron including the weight of the driving motor is preferably equalized by By giv- I properly dimensioning or adjusting the counterpoise 7a.

If it is desired to start with the operation of ironing, the sad-iron 3, which had previf ously been set in rotation by operating the motor 10, is carried over the piece of aundry or the like in longitudinal direction of'the ironing board 2, upon which said piece of laundry is placed. Phe sad-iron may now' very easily be moved to and fro over the surface to be ironed by reason of the fact that it may easily follow the motion of the hand on account of the free suspension as well as on account of the possibility of easy displacement of the carriage 6. In addition to this, the motion of the sad-iron over the piece of laundry or the like, in spite of its large weight, will require a much smaller physical effort on the part of the operator, than. would in a reduction of the pressing force exerted.

by the iron. If it is desired at certain times to produce not merely a smoothening effect but a greater pressure with the iron, as may for instance be desirable in order to properly iron and press the folds or plaits of upper shirts,the motor is put out of action by oper-' ating a switch arranged within the range of action of the operator. By simply switching the motor again into circuit itwill be possible to continue the mere ironing or smoothening operation In order tOllSG the ironing machine also for the purpose of ironing or pressing upper shirts and other pieces of laundry, whereby not solely smooth surfaces of relatively large extension shall be treated, an auxiliary sadiron 40 is rovided, as represented in Figs.

3 and 4. is auxiliary iron consists of a hollow cast-ironbody which is open at its top. said. cast-iron body having about. the form of the front pgrt of an ordinary sadiI'0Il.-= The hollow dy is covered up at its top by a metal sheet 141 fitting the circumference of said body, said metal sheet extending into a tongue fitting the curvature of the bell-shaped body 4 and being connected to the latterby means of screws. 43. The screws extend into slots 44 provided in the flaps 42, whereby the auxiliary sad-iron 40 may be adjusted with respect to the main sad iron. The auxiliary sad-iron is preferably said carriage, and a motor driven sad-iron equipped with a special heating device 46 which consists of a-burner provided in the hollow space of the iron, said burner being supplied with gas by means of a pipe stud 47 mounted inthe cover plate 41.

When the auxiliary iron is attached, device is used in such away that the sad-iron 3 continues to execute its rotary motion in which the auxiliary iron does not partake, as the same is (in-connection with the bell-shaped body 4. But an independent motion to and fro in the plane of the ironing board may be imparted to the auxiliary iron by means of a corresponding motion of the hand-wheel 5.

I claim I 1. An ironing machine of the character described, comprlsin a sad-iron mounted ro- I tatably within a .aring body, supporting,

means, and a plurality of suspension members connected .to said bearing body and to said supporting means and having their upper as well as their under connecting points distanced from each other.

2. An ironing machine of the character described, comprising a sad-iron mounted ro-. tatably within a bearin body, supporting means, and a plurality o flexible suspension members attached at points spaced apart from each other to said bearing body as well asto said supporting means.

3. 'In an ironing machine of the character described, a frame, a carrier movable along said frame, a rotatable motor driven sad-iron suspended from said carrier, and means for raising and lowering said carrier together with said sad-iron.

4. In an ironing machine of the character described, a frame, a carrier movable along said frame, a sad-iron suspended from said carrier, motor driven means for raising and lowering said carrier together with said sadiron, and controlling means for said raising and lowering means.

5. An ironing machine, comprising a frame, a carriage displaceable along said frame, a motor mounted on said carriage, a bearing body suspended from said carriage so as to be able to swim in all directions, a sad-iron mounted rotata ly within said bearing body, and flexible driving means connecting said sad-iron to said motor.

.6., An ironing'machine, comprising a fixed guideway, a carriage displaceable along said guideway, a bearing body suspended from mounted rotatably within said bearing body.

7. An ironing machine of the character described, comprising a sad-ironof circular form mounted rotatably within a. bearing body, su porting means, an ironing table, and flexible suspension. means connected to said supporting means and adapted tosuspend said bearing body together with said sad-iron so as to be displaceable all over said ironing table. I

the 7 means so as to be a le to be swung in difierent vertical planes, and a sad-iron rotatably mounted within said bearing body.

9. In an ironing machine of the character described, supporting means, a bell-shaped bearing body freely suspending from said supporting means, a rotatable motor-driven sad-iron having an upwardly extending and peripherally projecting edge, said bearing body having a downwardly extending and peripherally projecting edge slightly overlapping said former edge, a hollow space provided intermediate said bearingbody and said sad-iron, and heating means provided in said hollow space. i

10. An ironing machine of the character described, comprising a bearing body, a sadiron mounted rotatably within said bearing body, supporting means, flexible suspension means attached to said bearing body and to said supporting means, a motor,land a drive connection between said motor and said sad- 1ron.

11. An ironing machine of the character described comprising a bearing body, a sa diron mounted rotatably within said bearing body, supporting means, a plurality of suspension members attached to said bearing body and to said supporting means in an upper and a lower group of attachingapoints,

ing said motor to said sad-iron.

13. An ironing machine of the character described, comprising a bearing body, a sadiron mounted rotatably within said bearing body, stationary supporting means, a carriage displaceable along said supporting" means, substantially vertically extending suspenslon means attached to said bearing body and to said carriage, a motor mounted on said carriage, and a drive connection be-. tween said motor andsaid sad-iron.

14. In an ironing machine of the character described, a displaceable supporting member, a rotatable sad-iron, means to suspend said sad-iron from said supporting member so asto allow said sad-iron to be displaced to all sides, a motor, and drive means 0 eratively connecting said motor to said sa -.iron.

, 15. An ironin machine of the character described, comprisin a bearing body, a sad- 'iron mounted rotata ly within said bearing body, stationary supporting means, a carriage displaceable along said supporting means, substantially vertically extending suspension means attached to said bearing body and to said carriage,and a motor mounted on said carriage and adapted to drive said sad-iron.

In testimony whereof I aflix my signature.

ARTHUR HAMMER.

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