US1660678A - Safety feeding device for compression rolls - Google Patents

Description

Feb. 28, 1928.

G. H. MAA

S FETY FEEDING DEVICE FOR COMPRESSION ROLLS Filed N v. 7. 1921 1 VEN TOR George f7. Mas.-

,q 7' TORNE Yls 40.:2' The adjunctive device-may be termed a- GEORGE E, MAAs, or

SAFETY F EDING DEVICE roie colvrrnnssron nonns. j

Application filed November 7, 19'21'. '!-seria1 No. 513318. j

to injury to the fingers, or handsofthe op era-tor of the machine.

In prior'structures of this type, the actual initial-feeding of thematerial's to the rollers usually has been effected by the hands.

of the operator, and in frequent instances such practice has resulted in serious, perma nentin ury to the operator, whose-fingershave been caught between the compressionu ""i'ollers and' badly crushed, In oth'ercases, thehand of theoperator, and even the arm; has been drawn between the rollers and t hei injury inflicted, before the movement of the rollerscould bearrested."

205/5 The present inventiondias been devised with a view to -eliminating the dangers-at tendant upon the use'of the older-formsfof machines, and in achieving that "very" desirable result, I have produced" a devicewhich feeds material to the rollers as efficiently as-- 'couldqbe' done'by-the fingers of'the'o er ator, and with absolute safety-andfree emf; from liability to injury. 2 i f In its mechanical i construction; imr smprovement has been embodiedfin a device I,

which is intended to serve as anadjunctto anordlnary set of compression rollers; and

trance between the; rollers, and thus effectuallyprevent the fingers of the operator from being placed in suchproximity to the roll-1;

ers-asto incur any liability to'injury.

carrier, upon which-the materials to =be fed to -.-therollersareplaced by the "operator.

ers -in the continued rOtfitlOnfOf the latter.-

' As before indicatedft-he-movement of'-the*- carrierto a position where it feeds the 'ma- .terialssupportedthereby to the rollers; closes .theentrance to the rollersso that the fingers of the'joperator cannot any possibility be" drawn between the rollers;

In its broader aspects; my invention com-1 sapnses a carrier, conveniently' forrned as a MILWAUKEE, W sconsin; SSIGNQR or {ONE-HALF To $ARA'IH" KABGER, or MILWAUKEEQWISCONSIN,

pivoted bar or otherwise, on: which are'plaeed 'thematerialstobe fed between the'co1npres'-' sion rollers, and adapted to be moved into 5 an operative position contiguous to the" roll-i -er's, so that whenin such 'op'erative relation the rollers by their" rotation -will draw the materials from the carrierywhich latter may then ":be' retracted preparatory to "another I feedingvoperationr In he drawing, I

of eommontype, and while this instances'the than? thosei'shown' as well as": for other than" those stated. a

I have-illustratedthein vent ioni'as: an adjunct to a laundry wringer present contemplated use of the invention, it {is tobe understood that' theiinvention is not to beiso limitdinits use', "but: that it possesses' adaptability for use inrelations other purposes The novel ieaturesof theinventi'on will be poi'nteddut in the claims'fappended hereto.

In the. drawing Flgure'il is a :view'inv front elevation of a clothes wringer cot common type, 1 having my *invention in one of its iformsiapplied thereto; 1 r

Figx'Q is'a view "looking from the top of" Fig. 1', and: showing-the relativearrangement": oftherinventi'on tofthe frame of the wringerg' the: top bar-wot:-ltherlatter being shown "in dotted-iinesr' v Figs-'3 isrlan enlarged? vertical sectional view on the "line 343, :FignQ, looking in the direction of .tlrerarrow. and showing my-in' V which while feeding-the :materials ini'tiallyato the-wrollers, will act: at thesametimeas. 35 a :guard to close the space forming-theen--- vention "in feeding: relation to the "compression rollers? 'of"the awr1nger'.w

Fig: 4 is aview'from'theright'of showingxzeertain "details 'ofisconstru'etion "of f the invention";v P

V .F1g.5 is a perspective View of of'the feeding and safety device.

the hanger onbracketbymeans ofwhichthe device isconnected to the frame ofthe wring-er.

' Fig, '6 is "a view :isimil'arto Fig] 3, and Q showing-a modification" of the construction The carrier is then niovedinto operative re--- lation to thewollers, which latter in their 5lrotationi grip and draw the materials-hom thecarrier and throughor between the roll-w in whichifra'me a pair of'cornpression rollers ll and 12: respectively are 'journalled, and

operated intheusua1 inanner. Thetop roll 11 with capacity for vertical" movement, 1 is pressed into" engagement: with the bottom ,roll' I2'by the action ofa bow spring 13. v I

1 A wringer having the f construction thus described presents no; features of novelty.

In"use, it is customary for thelaundress to" i enter the laundry work between the revolving rollers. At such times the rollers do not always pick up the work readily, and the feeding movement is augmented by the pressure of the fingers of the laundress in an effort to initiate the feeding of the material between the. rollers. It frequently'happens that the fingers of the operator are drawn between the revolving 'rollers and injured,

sometimes quite badly, before the rotation of the rollers can be arrested; Industrious workers are more often subjected to injury in this way.

In order to eliminate the liability to -the incurrence of injuries'in. the manner de-' scribed, I have devised an adjunctive means 'for'effecting the feeding of the workto the wringer, and I do this with myinvention with greater facility than the wringercan be fed by hand. 7 In my invention the dangers heretofore existing are entirely obviateda Inthe form in which I have-chosen to illustrate my'inventiomI form a bracket 14 having laterally projecting ears 15 formed thereon, and provided with aligned openings .16. The "said bracket is conveniently 'attachedfto one ofthe uprights of the ner face witha narrowed projection in the form of a longitudinal rib 19, which whenthe bar is swung forward is adapted to en -f ter closely the space formed by .the convergenceof the surfaces ofthe rollers, -butre-.

V strained from contact therewith.

The projection 19 on the face of the bar 17 may be recessednfor the reception ofa plurality of balls 20, mounted to rotate upon axes 21' fixed in the projection upon the bar, as shown in Figs. 1 to 4.

In operation, the bar. 17 will be swung upon its pivotal. support away from the 'wringeryas indicated by the'dotted arrow in Fig. 2, and thewet fabric 22 or other article from which the moisture is tobe expelled will be laid over the bar as indicated in Fig. 3. Thebar 17 will then be swung to its position inproximity to the rollers 11 and 12, sufficient pressure-being applied to the bar to cause the surfaces of the balls '20 to have a frictional engagement through. the fabric withthe rolls of the wringer, and to partake of a movement of rotation corresponding to that of the said. rolls. 'This action serves to feed the fabricor-othe'r article into the narrow space formed by the convergence of the rollers'11 and 12, with the result that the fabric is gripped-and drawn .the material to thegrip' of the rollers.

between the rollers. As soon as the fabric 22 or other article begins its feeding movement, the bar 17 may beswung away from the wringer, and the fabric will be drawn through the rollers by the continued rota tion thereof. Y e a In Fig. 6 I have shown a modified form of my invention which I find to have a practicalefficiency, In such modified construction, the rotating balls are omitted, but the device operates in the same manner as above described, inasmuch as the elongated; rib 19;

"which is present in both constructions,

serves to enter the fabric sufficiently into I the narrow space between the rollers teen-" able the latter to grip thefabric and draw it between'the w'ringer rollers 11 and 12. The vertical faces 23 of the bar shown in Fig. 6 act to limit the extent'of the move-. ment of the projecting rib 19 into the space between the rollers. r v The invention is applicable to both'man .ually operatedand power driven wringers. And while I have described the invention as applicable to a clotheswringer adapted is for laundry use,it is to be understood that my invention is not'to be so limited in its use, but that it may be used'in other relations and machines in which 'a similar feeding'action takes place.

It will be noted that thebar 17 operates in the horizontal plane of the space between the rollers 11 and 12, and: that whe'n'suchf bar is'swung into its feeding position in proximity to the rollers, the space there between is effectually closed'against the entry of the fingers of the operator. 1 Having thus described my invention,-what I. claim and desire to secure by Letters Patent of the United States, is: j j

1. A frame, a pair of compression rollers, a feeding member constituted as abar piv- I oted at one end to the said frame to have a compressed between the said rollers, said feeding'member being provided with an .extension adapted to enter the space formed by the convergence of the rollers to present S2. A frame, a pair of compressionrollers,

a feeding member constituted asfa bar-p'ivoted .at'one end to the said frame and adapted to be moved to insert the material to be:

compressed into the space formed by-"the', 1 convergence of the rollers to cause the-latter to grip the material thus presented and" draw'it through the rollers. 3.'A frame, a pairof compression-rollers,

a feeding member constituted asa bar pive 1 25- oted at one end to the said frame and adapt- V ed to be moved to insert the material to'becompressed between the rollers, said feeding member being provided at its front side with a projection penetrating the space between 1 also being provided with rotatable means adapted to havefrictional engagement with the material fed between the rollers and participate in the rotation of the latter.

5. A frame, a pair of parallel: compression rollers, a feeding device comprising a bar pivoted at one end to the frame adjacent one journal of the said rollers and adapted to have a feeding movement into the space between the rollers, the said bar being provided with'a rotatable element adapted to have frictional engagement with the material fed between the rollers and partake of the rotation of the latter.

6. The combination of a frame, parallel compression rollers, and a device for feeding material between the said rollers, the said je-ction.

feeding device being constituted as a bar plvoted at one end to the frame and adapted to be turned on its pivot to carry the material into the space between the rollers, the said bar earryinga rotative element adapted to press the material against the rollers and particip'atein the rotation of thelatter.

7. The combination of a frame, parallel compression rollers, and a device for feeding material'between thesaid rollers, the said feeding device being constituted as a bar pivoted at oneendto the frame and adapted to be turned on its pivot to carry the material toward the rollers, the saidbar carrying on its face a projection adapted to enter the materialbetween the rollers and carrying also rotativeelements for engaging the rollers to limit the movementof the said pro In testimony ber, 1921. g I

, GEO. H. MA'AS;

whereof, I have signed name at Milwaukee, this'5th dayof Novem- "4 5

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