US1882214A - Ironing machine - Google Patents

Description

Oct. 11, 1932. ETTEN 1,882,214

IRONING MACHINE Filed May 20, 1929 3 Sheets-Sheet 1 46 o /6 v a o 0 07 o N. L. ETTEN 1,882,214

IRONING MACHINE Filed May 20. 1929 3 Sheets-Sheet 2 Oct. 11, 1932.

Oct. 11, 1932.

N. L. ETTEN IRONING MACHINE Filed May 20, 1929 3 Sheets-Sheet 3 fzwezzz uw mfm , Aizf'ys v to get his fin ers caught between the presser Patented Oct. 11, 1932 UNITED srA'rEs NICHOLAS L. ETTEIN', or WATERLOO, IOWA,- AssIoNoR, BY MEsNE ASSIGNMENTS, 'ro

PATENT OFFICE CHAMBERLAIN MACHINE WORKS, A CORPORATION IRONING MACHINE Application filed May 20, 1929. Serial No. 364,504.

My invention relates to that class of ironing machines in which the ironing process is effected by pressing the garment to be ironed between ahead and the buck, the heat for ironing purposes being applied to one of these members. 7

Inmachines of this kind it is essential that a relatively great amount of pressure be applied to the garment during the ironing process.

Heretofore ironing machines of this chanacter have been equipped with electric motors or the likeof considerable power and weight for-the purpose of providing the necessary amount of pressure. p

The object of my invention is to provide an ironing machine of the presser type of simple, durable and inexpensiveconstruction, and in which an ample amount of power for pressing purposes may be obtained by the use of a relatively, small light electric motor,

which is applied directly to the buckinember of the ironing machine, and moves it upward-- 1y only a slight distance to effect the pressing operation, thus providing an ironing machine of very struction.

Another object of my invention is to provide an ironing machlne ofthis character without safety guards and so'arranged that it is practically impossible for-an operator head and buc during the time that pressure is being applied.

My invention consists in the construction, arrangement and combination of the .various parts of thedevice, whereby the objedts contemplated are attained, as hereinafter more fully set forth, pointed out in my claims,1and; illustrated in the accompanying drawings, in"

which: g V. Y Figure 1 shows an end elevation partly in section illustrating my improved ironing ma- .chine. I

Figure 2 shows an enlarged detail view inlightweight and inexpensive con-- vertical transverse section illustrating the upper portion of the machine frame and the buck and head members therein.

Figure 3 shows a longitudm 1 sectional View through the upper portion of the ma- Figure 5 shows an enlarged detail view illustrating the motor shaft and the cam shaft and the mechanism for driving the cam shaft at times from the motor.

Figure 6 shows an enlarged detail view illustrating one of the latch devices for securcoing the frame of the head member to the frame of the buck member: The dotted lines show the latch in open position. I Figure 7 shows a detail sectional view of the hinge member connecting the frame of the head to the frame of the buck member. The dotted lines show a portion of the head member in open position.

Figure 8 shows an enlarged detail view of the cam shaft and one of the cams, and a portion of the means for elevating the buck member by the cam. v

Figure 9 shows an enlarged detail sectional view of the latch device for throwing the cam shaft driving pawl-out-of operative position; and i Figure 10 shows a similar view with the pin withdrawn to permit the latch device to re-- main in an operative position.

shaft 12 projected upwardly andprovided on its upper end with a worm gear 13. This.

worm gear 13 isin mesh with a larger worm gear 14 rotatively mounted on a horizontal cam shaft 15, and means are provided tabs hereinafter describedcfor at, times clutching this worm gear 14 to the shaft 15. Mounted upon each end of the cam shaft 15 is a cam 16 designed to engage a sliding block 17 mounted for movement in a tubular frame 18, fixed to the frame. Received in the upper'end of the tubular member 18 is a tubular guide member 19 fixed to the buck member, and between the buck member and the block 17 is a compression spring'20.

By this arrangement it will be seen that when the cam shaft is rotated a half revolution, and the buck member is at its lower position" of movement, then the buck -mem'-' 15 limit of movement, and after the head member is -fixed in position, then it will limit the upward movement of the buck member and t e springs 20 will be compressed to an extent depending upon the thickness of the material inserted between thetwo pressing members. Then when the cam shaft'15 is r0.- tated again through a half revolution, the buck member will be thereby moved to its lower limit of movement. p In. this connection it should be explained that one of the reasons why I am enabled to obtain an adequate. pressure for ironing purposes by. the use of a very small motor and light and inexpensive frame, i's(that the entire buck member moves only from one limit to the other about one-fourth inch, and hence the entire power of the motor through many revolutions" is reduced by the worm gear mechanism and the cams to such extent as to impart tothe buck member only the sli htupward movement before mentioned.

or the purpose of causing the cam shaft to be moved through a half revolution, and then stopped, Ihave provided the following mechanismi I have provided-a casing member 21 for the .worm ear 14. Within this casing member there is rfixed to the shaft 15 a ratchet member 22, and carried bythe worm gear 14 is a awl member 23 havin its end 24 designe I to engage and eoact wit the ratchet member 22, and also having at its opposite. end a projecting shoulder 25 for purposes hereinafter made clear. This .pawl, is yieldingl held by a spring 26 in position to op- I erat1 ely engage with the ratchet member tionary pin 27, and this pin engages the shoulder 25 of the pawl 23 when it is at its lower limit of movement to thereby overcome the pressure ofthe spring 26,- and hold the pawl 23 out of engagement with the ratchet 00. member 22.

v Mounted upon the-casing member 21,. near its top, is a latch member 28 pivoted at one endat'29, and having an opening 30 in its other'end, and also having an arm 31 at the end opposite from the pivot 29. A' spring 32 shown in Figure 9 Mounted in the casing member 21 is a sta-- is providedfor normally holdin this latch member to its upward limit 0 movement out of the path of travel of the pawl 23, but when said latch member is at its lower limit of movement, its arm 31 will engage the shoulder 25 of the pawl 23 and force the pawl against its spring pressure to position foidlsenga ing the ratchet member 22.

For ,t e purpose of at times holding the latch member 28 at its downward limit, I have provided a slidin pin 33 mounted inthe casing 21, and yiel ingly held inwardly by a spring 34, and obviously when the pin 0 is at its inward limit of movement,where it her will be raised thereby to 1ts upward is normally held by the spring 34, it will hold the latch 28 in position to engage the ratchet member 23, but when said pin is removed or drawn outwardly, then the sprin 32 holds the latch member upward out of the path of travel of, the pawl 23. The inner end of the pin" 33 is slightly rounded, as v so it will readily enter the opening in'the latch member 28.

By this arrangement it will be seen that when the pin 33 is at its outer limit of movement, as' shown in Figure 10, the latch 28 is held by its spring at its'upper limit of movement, as shown in Figure 10, where it will not be engaged by the pawl 23, and this will permit the spring of the pawl 23 to hold the pawl inposition so it willeng'age the nearest shoulder on the ratchet 22, and hence the ratchet will be carried around by the pawl, and the cams on the shaft 15 will be turned and the buck moved. Then when .the ear wheel 14 has moved througha half revo ution, the pawl 23 will strike the stationary pin 27 and throw thepawl 23 out of engagement with the ratchet 22, thereby stopping the movement of-the shaft 15, after it has made a half revolution.

As soon as the operator observes that the buck has commenced to move, then he releases the pin 33, and this pin is then forced by its spring 34 into the opening in the latch 28.- The rounded lower edge of the pin 33, as shown in Figure 10, causes this movement of'the pin to swing the free end of the-latch downwardly until the pin enters the opening in the latch and holds it at its downward P movement, as shown in Figure 9. Thereupon, and during each revolution of the gear 14, the pawl 28 will be tipped away from the n moved to its opposite limit of movement and there stopped.

member at its upper limit of movement, they will be held stationary in this position during any number of revolutions to the worm gear 14, and until the pin 33 is again withdrawn to release the latch member 28, so it will engage the latch 22, whereupon the cams 16 are again turned a half revolution and are caused to move the buck member from its upper limit of movement to its lower limlt, and the pawl23 is again thrown into an 1noperative position by the engagement of its shoulder 25 with the pin 27.

The buck member is indicated generally by the reference numeral 35 and is preferably provided with the customary pad 36 at its to fiixed to. the frame member and extended transversely across the top thereof are the frame members 37, both ends of which are extended upwardly at 38;

The head member is indicated generally by the reference numeral 39, and in its closed position it stands spaced apart above the buck member approximately one-fourth inch when the buck member is at its lower limit of movement.

I preferably project the side edges of the head member slightly'over and beyond the top of the buck member to form a safety seal device, as hereinafter more fully ex lained;

This head member is supported, y twO transverse frame members 40 to which it is firmly fixed. These frame 'members have both ends extended downwardly at 41. At the rear of the machine these downwardly extended ends are hingedly connected to the upwardly extending ends 38 of the frame members 37, and at the front there is carried by each of these downwardly extended end members 41 alatch member 42, normally held in closed position by a spring 43, and designed to coact with a pin 44'carr1ed by the adjacent frame member 38. These latch members are provided with forwardly extending ends 45, which'are. connected by a handle 46.

I preferably provide in the head member" 39 an electric heating element of ordinary construction not shown. I

Springs 47 are provided for normally holding the head supporting frame members 40 in an open upright position at the back of the bugk member.

In practical operation, and assuming that the head member is in its open upright position whnlly at the rear of the buck member,

then the operator may readily and easily place the garments to be ironed upon the buck member. Then the operator grasps the its locked position slightly above the' adjacent. surface of the buck member. I

In-this connection let it be assumed that an operator through carelessnesshas placed his fingers between the head and buck member, then due to the projecting edges of the buck member and the fact that the space between the head and buck members, when they are latched together, is only about one-fourth .inch, it is obvious that the operator cannot lower the head member far enough to latch it, and all of the pressure that could be applied with the operators ha d upon the head memher to move it to closed position would not injuriously affect the operatorsfingers that might happen to be placed between the head and buck members. Hence, the only time that the head member can be moved to its latched or locked positionis when there is no obstruction between the head and buck members, such for instance as an operators finers.

When the head member is in its locked position, then the operator pulls the pin 33 outwardly, and assuming that the motor is running, then the'pawl' 23 carried by the worm gear 14 moves the shaft 15 very slowly through-a half revolution and during this movement, the buck member is moved upwardly under great pressure against the firmly positioned-head member, andethe buck I It is obvious that'by means of my improvement, and due to the fact that the movementof the buck member is very'limited, I am enabled to employ a relatively small electrio motor for applying a relatively heavy pressure to the buck member against the locked head member, and due to the fact that the head member is firmly held upon the supporting frame members 37 and 40 at both sides, it is obvious that these frame members will withstand all the pressure which is ap-- plied bythe buck member against the head member, and yet due to, their construction, theseframe members may be made of relatively light-and inexpensive material, and since practically all of the, strains'and pressures upon the entire apparat s are carried by these two-frame members 7 and 40, the

and inexpensive.

I claim as my mventlonz .1. In an ironing] machine of the class de:

scribed, the combination of a frame, two

handle 46 and moves the head member to transversely arranged frame members near the top of the frame having their ends extended upwardly, a buck member carried by the frame, two transverse head member "carriers pivoted at one end of the upper ends of said upwardly extending frame memberon one side of the buck member, a head member fixed to saidcarriers, the opposite end of said earriers being extended downwardly at the sid opposite from the pivot, spring operated.

latch members carried by said carriers, a handle connecting them, and coacting latch members carried by the upwardly extended portions of said frame members-on the outside of the buck member, said parts being so arranged and constructed that pressure by the buckmember upwardlyagains't the head member will be resisted by said frame memher and carriers.

2. In an ironing machine, the combination of a buck, means for bodily raising and lowering it, a head mounted to be moved toward and from the buck, a latch device for the head designed to lock the head only in-a predetermined working position which is spaced above the lowered position of the buck, and whereby when the buck is in an elevated position or there is an obstruction between the buck and head, the head cannot belatched against upward movement.

3. In-an ironing machine the combination of a buck capable of being moved bodily from a predetermined upward limit of movement to a downward limit of movement, manually controlled poweroperated means for moving said buck, ahead mounted to. be moved toward and from the buck, a latch device for the head designed to lock the head only in a predetermined working position which is spaced above the lowered position of the buck,

and whereby when the buck is in an elevated position or there is an obstruction between latched the buck and head, the head cannot be against upward movement.

NICHOLAS L; ETTENQ

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