US1936390A - Stripper member for flat work ironers - Google Patents

Description

Nov. 21, 1933. I c HAMILTON, 5 1,936,390

STRIPPER MEMBER FOR FLATWORK IRONERS Original Filed June 6, 1931 INVENTOR K 77 Charles Eda/in Hawaiian, $1.

Patented Nov. 21 1933 UNITED STATES STRIPPER MEMBER FOR FLAT WORK IR-QNERS Charles Edwin Hamilton, Sn, Hollywood, Calif., assignor to Edwin Lane, Percy Mendelson, and Charles Mendelson, all of New York, N. Y.

Application June 6, 1931, Serial No. 542,477

Renewed October 5, 1933 I Claims.

The invention relates to laundry and dry cleaner machinery, more especially to the socalled flat work ironers of either the chest or cylinder type.

In accordance with the usual practice in the operation of these ironers, a plurality of cloth covered rolls are journaled for rotation above a steam-heated drum or a chest, and the articles to be ironed are caused to be passed onward from one roll to the next by the use of a series of endless strings or tapes disposed transversel of the rolls.

In prior U. S. Patents Nos. 1,186,640 and 1,740,980, as well as in my copending application, Serial No. 525,896, flexible stripper fingers are disclosed as associated with the rolls for stripping work therefrom, in lieu of the strings or tapes heretofore utilized.

The present invention has for its object the provision of a novel and more effective form of stripper member, and one comprising also a break-away portion.

A further object of the invention resides in the provision of a stripper member whose stripping edge will be caused to rise rapidly away from its steam chest surface when encountering an abnormal obstruction, swinging away from a roll about a fulcrum at its opposite end.

A still further object of the invention resides 3D in means to cause the stripper finger part of the member to be biased toward its coacting roll surface, whereby when it is rele'asedfrom engagement with an abnormal obstruction it will immediately return to its active stripping position against the roll surface.

A further object of the invention resides in a novel and convenient means for attaching a stripper member to a support, the same enabling also its ready removal when replacement or adjustment is required.

In the accompanying drawing which illustrates the invention,

Fig. l is a fragmentary transverse section through a succession of ironing rolls and asso- 45 ciated steam chests, and illustrates the application of the novel stripper member thereto and the mounting of the same upon the ironing machine.

Fig. 2 is a fragmentary plan view of a stripper support member or holding bar, with a number of strippers mounted thereon.

Fig. 3 is a perspective view, on an enlarged scale, of a stripper member as mounted upon its support.

Referring to the drawing, 10 and 11 designate a emerges from between a roll and chest.

succession of rotatable ironing rolls such as are utilized in an ironing machine, for example, of the chest type, the rolls being journaled for rotation above adjacent steam-heated chests 12, 13, etc, and the surface of which immediately beneath the roll is generally concave to insure greater ironing contact.

Provision is made for mounting a suitable stripper member, hereinafter more fully set forth, to bear upon the delivery side of a roll, as indicated in connection with the roll 11, to strip from the surface thereof work immediately as it These stripper members are carried along a suitable support as the hollow angular holding bar 14 which is journaled in arms 15 extending along opposite sides of the ironing machine and carried by the brackets 16 secured to an upstanding stud 17 of the machine frame.

The stripper member itself is more particularly shown in Fig. 3 of the drawing and comprises a rigid bar 20 which is turned over at its upper end to form a short right-angled portion 21. To this is rigidly attached at the bent-over portion and also substantially midway of the vertically disposed or straight-away portion of the bar a strip of flexible material, such as spring metal having the projecting upper end 22 for fulcruming or hingedly attaching a stripper member to the holding bar 14.

A convenient means of effecting this attachment embodies the strap 23 which is struck up from the upper surface of the bar and from which surface is also provided a projection 24. The latter is designed to seat in a recess or perforation 25 at the end of strip 22 when the said end is inserted under strap 23 and serves thereby to tension or bias the lower end of the strip toward its roll. The stripper member end is thus also securely located and in a manner such that the bar may swing about strap 23 as a fulcrum when the opposite end of the strip 22 encounters an abnormal obstruction as in the case of work bunching in delivery from a roll.

The lower end of the strip is unattached to the bar 20, substantially from its mid-portion downwardly, as at 26 and is then continued slightly beyond the end of bar 20. A finger portion 27 is bent at an angle thereto, from a point beyond the lower end of bar 20, directly toward the surface of the roll. By thus projecting backwardly toward its roll the free end of strip portion 26, work stripped by the action of its forward edge 28 from a roll may be also guided thereby toward the next roll. The aforesaid portion 27 of the 110 finger is designed preferably to be arcuate and substantially parallel to the periphery of the associated steam chest to afford a break-awe action with respect to the delivered goods.

The material of finger portion 26-27 as well as of the securing strip end 22 is of much lighter gauge than that of the bar 20 which is substantially rigid and unyielding, while the said lighter portions are not only yielding but are sufficiently resilient to exert a spring pressure upon the roll surface, being biased theretothrough the particular mounting of a said strip end 22. It will be understood, of course, that while the strip element has been shown as one piece of spring metal, the securing and stripping portions may consist of separate pieces of the spring metal individually secured to the bar 20.

This mounting, also, insures the ready swinging away of the stripper member from the roll surface, as indicated by the broken line position, Fig. 1 of the drawing, when its finger portion 27 encounters an abnormal obstruction; and it will be noted, furthermore, that due to its iulcruming about the strap 23 there is a tendency of the edge 28 of the finger to rise rapidly with respect to the steam chest surface and thus tend to break away from any accumulating work which have become jammed in the machine. This rising motion serves to clear the stripper and prevents not only its becoming enmeshed with the work passing through the machine, but from becoming'locked behind a seam 29 of the steam chest. The lower end of the relatively rigid bar portion 20, furthermore, normally affords a stop for normal outward movement of the finger element.

I-claim:

1. A stripper member, for use in a fiat work ironer including rolls, comprising a rigid bar having an upper portion bent at right angles, a flexible strip attached to the bar and to the bent over portion and having an extension in the iongitudinal axis of the bent-over portion and for fulcruming the stripper member to a support under tension, and said strip extending beyond the lower end of the bar to afford a flexible stripper fingerfor bearing along its front edge on a roll of the ironer.

. 2. A stripper member, for use in a fiat work ironer including rolls, comprising a rigid bar having an upperportion bent at right angles, a flexible strip attached to the bar and to the bent over portion and having an. extension in the longitudinal axis of said bent-over portion for fulcruming the stripper member to a support under tension, and said strip extending beyond the lower end of the bar and away from the same to afford a flexible stripper finger for hearing along its front edge on a roll of the ironer.

3. A stripper member, for use in a fiat work ironer including rolls, comprising a rigid bar having an upper portion bent at right angles, a spring metal strip rigidly secured to the bent-over portion of the bar with portion projecting beyond its end in the longitudinal axis of the bent-over portion and adapted for attachment to a support under tension, and the strip being further rigidly secured to the bar substantially midway of the length of the bar, the strip extending beyond the lower end of the bar to aiford a flexible stripper finger for bearing along its front edge on a roll of the'ironer.

4. A stripper member, for use in a flat work ironer including rolls, comprising a rigid bar having an upper portion bent at right angles, a support member therefor having a strap and. a projection extending from its upper surface and located beyond said strap, a spring metal strip attached to the bent-over portion of the bar and having an extension in the longitudinal axis of said bent-over portion adapted for insertion under the said strap, said extension being provided its outer end with a recess to fit the said projection. and thereby to locate the stripper member as a whole to constrain it to swing about the strap as a fulcrum when encountering an abnormal obstruction, and the strip extending beyond the lower end of the bar to afford a hexible stripper finger for bearing along its front edge on a roll of the ironer, said finger being biased thereto under the action of the upper extension. a

5. A member for stripping material from a roll, comprising a rigid bar having an upper portion bent at right angles, a flexible strip rigidly secured to and extending from the bent-over portion in the direction of the longitudinal axis of said portion for fulcruming the stripper memher to a support under tension, and a flexible stripper finger extending beyond the lower end of the bar adapted to bear aiong its front edge upon the surface of the roll.

oHA LEs EDwIN TIAMILTON, s

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