US1703586A - Feeding apparatus for ironing machines - Google Patents

Description

Feb. 26, 1929;

c. P. JAHNKE FEEDING APPARATUS FOR IRONING IA CHINBS Filed Aug. 15, 1927 Patented 26, 19293 "UNITED STATES PATENT 10F FICE- CHARLES r. JAHNKE, or MINNEAPOLIS, MINNESOTA.

FEEDING APPARATUS FORIVIRONING MACHINES.

Applicationfiled August 15, 1927. Serial No. 213,001,

This invention relates to apparatus for use in connection with fiat work, ironlng machincry and especially to apparatus for evenly linen by the corners to tension and smooth the same. The forward edge of the articleof linen is usually disposed upon the apron in a straight line and comes out of the machine properly ironechbut the rear edge of the article held in thermanner above described isfusually curved or arched andicomes out of the machine in. that manner. This is especially true of large articles, such as sheets, tablecloths, bed spreads, and the like. The curving or arching, moreover, often causes small wrinkles in the articles of linen.

The main object of my invention isto pro vide a simple but highly eflicient-feed ngapparatus WOIKIDg in co-operation with the feeding apron which will ,causcthe article ironed to be uniformly tensioned and fed evenlvto the roll throug'out'its'entire length, 1

positively preventing the article from wrinkling as well causinglthe article when ironed to have rectilinear-"edges on all sides.

Itis a further object ofln y invention to provide in a feeding attachment for ironing machiner smoothin ratus for engaging the article in co-operatmn with the usual feeding apron as it is fed into the machine, wherebyan even pressure-will be exerted on all parts of the article smoothingthesaine and causing thGStll'lC tobe perfectly fed to the ironing rolls. r I 4 I r it is another object to provide apparatus of the class described, which maybe-easily perated and controlled preferably by the foot of the operator.

A still further object is to provide efficient feeding and smoothing apparatus for: ironing machinery which may be readily 1nstalledon commercial machinery now in use without reconstruction or alteration of said machinery. f 1 l These and-other objects and'advant'ages of the invention Will-be apparent from the fol- 2; and tensioning appalowing description made in connection with.

the accompanying drawings wherein like reference characters refer to similar parts throughout the several views and in which, 7,

Fig. 1 is a perspective view of the forward or feeding end of a form of commercial ironing machine having a simple'embodiment of my invention operatively mounted thereon; Fig. 2 is a longitudinal vertical section of the forward end of the machine shown in Fig. 1, having my apparatus attached thereto;

Fig. 3 is a plan view of a portionof the smoothing and tensioning brush applied in connection, with the feeding apparatus;

Fig. 4 is, a side elevation of the same;

Fig. 5 isia diagrammatical view of a slightmodifiediform of the invention; and

Fi 6 is a side elevation Ora slightly air 'ferent form of my invention, wherein the brush or smoothing element is driven in the reverse directlon-to the travel of the apron.

As illustrated, myinvention is applied to a commercial ironing machine of standard type having the heavy upright'frame 6, the ironing, roll 7, vv journaled therein co-operating with the steamvchest '8 and having mounted l at its forward end thefl usualapronstructure.

Asshown, thisapron structure comprises aplurality of endless ribbons 9 trained over a relatively large ribbon feed'rollerlO and. a

relatively small rollerll disposed at the forward end of the machineprop'er and adjacent I the forward roller. The endless ribbons 9 are tensioned passageover a tensioning roller 12. The rlbbon feed roller10,andtensioning roller are shown ]ournaled 1n a forwardly eX-- tending bracket 13 which also supports the, I

usual shake out bar 14. Above the rear. end of apron 9 and disposed forwardly 'of the machine proper is mounted a finger guard 15 connected with operating inech anism-forstopof usual type swingabl'e on a rock shaft and ping the machine. Feed board brackets 16' a are provided at eachsideand beneath the rear portion of the apron.

My feeding apparatus as illustrated in Figs.

verselydisposed brush 17 of any suitable type, swingably disposed above and across tl1e;ribbons 9 ofthe apron and preferably situated 1 to 41: inclusive comprises angelong'ated trans- I forwardly ofthe finger guard 15. Brush 17 is mounted between apair of L-shaped arms are pivoted to said feed board "brackets 16.

1 8, the shorter and rearwardends of which Arms 18 are swingableon horizontal axes.

It will be seen thatbrush 17 is mounted in position to cont ct material fed into the machine. Arms 18 are'provided with tareaded eyes 1.8 in which adjustable stop bolts 19 are secured. Bolts 19 depend from arms 18 and their lower extremities engage the upper edges of the feed board brackets 16 limiting the downward position of the brush 17. Coiled springs 20 surround bolts 19 and are interposed between the under side of arms 18 and feed board brackets loadapted to yieldingly hold the brush in raised position a short distance above the top of tie feeding apron. The movement oi arms 18 is so slight that springs 20 need only be loosely disposed about adjustable stop bolts 19.

As illustrated inl igs. 1, and 2, a'pedal operating mecl'ianism is provided comprising a horizontally pivoted rock shalt illjoufnaled forwardly of the forward end of the machine and having pedal rigidly secured th reto. A pair oi rocker arms 23 rigidly secured to shaft 21 adjacent the ends tl'iereot are connected with the outer portions ot the brush arms 18 by means o'l" links or rods it lll.

be noticed that my pedal structure as shomi extends across the entire front oi tl nachine for the convenient manipulation or the operators.

Operation.

The operation of the term ol the invention illustrated in F 1 to inclusive, may be briefly described tie-follows:

Twoopcrators, one at each side of the feeding end the machine place the linen on apron 9 taking care to draw the corners oi? the forward ed g'e thereof taut to maize a rectilinear edge. One of: the operators then depresses the pedal 22, putting the requisite amount or tension on the linen through brush 17, in co-operation with the traveling ribbons 9 and smoothing the linen in its movement into the rolls. It will be seen that brush 17 will smooth the articles evenly and uniformly and will moreover apply the requisite tension in such a manner that it will be unnecessary for the operator to hold the lower corners oi the article. The position of bolt 19 may be obviously variedto adjust the position or engagement of the brush 17 against the linen. The pedal is, of course, released by the operator simultaneously with. the application of another artic o to the apron.

Extensive usage oil this device has shown 't to be highly e'llici-eut for the purposes intended and the sheets. table cloths, bed spreads, and other titles ironec by a mamachine supplied with my device come out in excellent shape with all edges thereof rectilinear.

In Fig. 5 is illustrated a novice similar in all respects to the device previously described with the exception that it is operated by gravity in -0136121310Il with a magnetic coil. As illustrated, hanger arms 26 are supported from the feed board brackets having angularly bent upper ends. Magnetic coils 27 are mounted from the upper ends of saidhanger armsdisposed above and substantially alined with the outer ends of brush arms 18 and are connecteo with a suitable source of electricity,

' a switch 28 being supplied in the circuit. In

this term of the invention the brush head is formed or sutliciently heavy material to permit gravity to readily drop the same against articles traveling on the apron and to sup ply the requisite tension for smoothing the article and causing them to feed properly. A dash pct 29 may be supplied beneath the outer ends of arms 18 to check the violence of the downwardmovement ot' the brush. Ubviously, when the circuit through coil 27 is completed, brush 17 will. be lifted from engagement with the apron or article on the apron and held in elevated position through electromas ietism. suitable structure'to permit operation there or by the ieet and will be disposed forwardly of the "feeding end of the ironing machine and pretorably upon the floor :t'or' the convenient manipulation of the operator. When the circuit through coils E2? is closed brush 1'? will, of course, be lifted from engagementwith the apron or article upon the apron. and. will be held slightly elevated therefrom to .enabl'e another article of linen to be fed to the machine.

A slightly diilerent form "of the invention is illustrated in Fig. 6, being a trifle more con'iplicated in structure, and preferably of slightly greater eificiency than the device previously described. In this form of the device the swingable brush arms 18 are identical with the brush arms in the first form's described and the depending adjustable stop bolts 19 are provided, adapted to engage the upper edge of the feed board brackets 16 to limit the downward movement of arms 18 and'coiled springs 20 surround the depending The switch QSwill be of ends of bolts 19 yieldingly holding'the arms 18 in upware position when pressure is removed from pedal 22. The brush 17 supplied in this term of the invention is" or the rotary type having trunniens 83 journals:

in the outer ends of arms 18. One ofsaid trunnions 33 is provided with afpulley 31. drivably connected tea pulley 32b means of endless belt 30, pulley being rigidlyconnected with the shaft of the ribbon, teed roller it). There is such slight movement re quired'in the operation of arms 18that the endless belt 30 will sutiice to connect rotary brush li 'with the ribbon feed roller for driving, being in line of greatest tension when the brush is moving into engagen'ient with the linen. llod connects the outer ends of arms 18 with the pedal operating mechanism (not shown, but which is identical with the operating mechanism shown in Fig. 2.). j I

t will be seen th t in the term of the in 'ention just described brush 17" is rotated in the opposite direction from the movement of It will, of course, be understood that vari- I one changes may be made in the form, details, arrangement and proportions of the, parts without departing from the scope of the in vention. What is claimed is: p 1. In combination with the feeding apron of an ironing-machine or the like, an elonated yielding element disposed transversely above said apron, means controllable by the foot of an operator for moving said element out of or into engagement with articles carried by said apron to smooth said articles and cause even feeding of the same to the ironing mechanism of said machine.

2. In combination with the feeding apron of an ironing machine or the like, an elongated yielding element disposed transversely above said apron, swingable arms supporting said elongated element and pivoted to said machine forswinging movement on sub stantially horizontal axes, and means controllableby the feet of an operator for moving said elongated element out of or into engagementfwith articles carried by said apron to smooth said articles and cause even feeding of the same to the ironing mechanism of said machine. v

3. In combination withthe feeding apron ofan ironing machineor the like, an elongated brush disposed transversely above said apron having a pair of swingable arms pivzontal axes and supporting said brush,'pedal operatmg means for swinging said arms to move said brush in or out of engagement with -oted. to said machine on substantially horiarticles carried by said apron, and adjustable H means for limiting the downward movement of said arms.

4. In combination with the feeding apron of an ironingmachine or the like, an elongated yielding element disposed transversely above said apron, resilient means for normallyholding said element out of engagement with said apron, and means by which said element may be moved against said apron to smooth articles carried thereby to cause an even feeding of the same to the working members of said ironing machine or the like.

5. In combination with the feeding apron of an 1ron1ng machine or the like, a smoothlngelement disposed transversely above said apron, means for rotatably supporting said v smoothing element with freedom for movement against or away from said apron, means for rotating said smoothing element, and

means for moving-the same into or out of en- 3 'a 'ement with articles carried by said apron to smooth said articles.

In testimony whereof I my signature.

CHARLES P. JAHNKE;

Images