US2647299A

US2647299A - Painting appliance of the detachable rolling sleeve type

Info

Publication number: US2647299A
Application number: US179148A
Authority: US
Inventors: Earl E Thomas
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-08-14
Filing date: 1950-08-14
Publication date: 1953-08-04
Anticipated expiration: 1970-08-04

Description

E. E. THOMAS Aug. 4, 1953 PAINTING APPLIANCE OF THE DETACHABLE ROLLING SLEEVE TYPE Filed Aug. 14, 1950 INVENTOR. EA RL E. THOMAS fiTTORNEY Filed Aug. 14, 1950 4, 1953 E. THOMAS 2,647,299

PAINTING APPLIANCE OF THE DETACHABLE ROLLING SLEEVE TYPE 2 Sheets-Sheet 2 2;. i Has.

INVENTOR.

EARL E. THOMAS Patented Aug. 4, 1953 UNITED STATES PATENT; onion 1 PAINTING APPLIANCE OF THE DETAGHABLE ROLLING SLEEVE'TYPE Em E i'1homas, mummie Application August 14, 195 0," Serial No. 179,148 1v Claims. (01.294116) Thisinvention relates paintingrollersof the detachable sleevetype, and; particularly to rollers which are endwise engageable and slightly com pressible by a paint-applying sleeve and which retain the sleeve inplace by resiliently opposing suchcompression. The invention may be consid eredas an improvement onthe subject matter of my. United States Patent No. 2,520,863, issued August 29, 1950.

- Anxobject of the invention is to provide a roller suited to frictionally retaina removable sleeve and comprising .two opposed segments of a hollow cylinder, spring means between the segments urging them apart, and heads engaging the ends of said segments, and limiting their response to the spring means. i r 1 Another-object is to form each of said heads with a pair of lugs so engaged between the two segments as to maintain their intended opposed relation. i

Another object isto form the segments with frusto-conical shoulders adjacent to said heads, reducing the diameter of the head-engaging ends of the roller as compared to its remainingextent, so :that a sleeve may beslippedireely over.one of the heads, and effect a compression .of the roller .by.-app1ying thrust to said shoulders. .1 Another object is "to dispose coiled springs'in the end portions of the described roller, between the, segments thereof; such springs yieldably urging the segments apartso far'as permitted. by the-heads.- V

Another object is to interconnect said springs in a manner to maintain their intended spaced relation:v 1 Another object isto provide a. sleeve-receiving roller formed by a pair of Opposed segments of a cylinder, and to attach to each segment :an arcuate springengaging the companion segment to yieldably expandthe roller. :Another objectis to engage the end portions of a segmental roller by. a pairxof heads'limiting expansion. of such roller,. and to equip the heads with springs expansively acting on thei'segments. 2 Thesenand various. other objects .are attained by the construction hereinafter described and i1!- lustrated in the accompanying drawings; wherein: Fig. 1 is a front elevational view; in partial sec+ tion, of a painting appliance including my im-, proved roller. v I 1 v Fig.2 is across sectional view of said appliance,

taken on the line 2-2 of Fi 1." N

' .Fig; 3 is a fragmentary axial section of an'end portion of .thewroller, taken on' the line 3--3 of Fig. 4 is .'a,:perspective' IViQW'Of aspring adapted to" be housed .within the rollerjfori applying an expansive force to the roller segments;

Fig. 5 isa view similarto Fig: 1 but showing .a modified spring provision for expanding the roller. Fig. '6 is a cross-sectional view;.of.said1 1,nodi fication, taken'on-the" 1ine:66 of Fig.5; Fig.16A is a cross section on GA -"6A of Fig.5; 1 Fig. 7 is a view similar toFig. 1. but, showinga further modification of the spring: means for ex-r Banding the roller. i 111. Fig. 8 is a cross secti0naL=view of-the lastvmen'w tioned modification,- taken on. the: line. l8-+8 V i of Fi 7. a

Fig. 9 showsin-cross 'section another.=spring provision for expanding the roller. i

'"In the construction shownin Figs:;1-4,:the-:ref: ence character l designates apair'ofiopposed 'complementary 'sheet metal cylinder segments spaced apart by a =coiled spring-.11and-jointly forming a" hollow roller. The end convolutions 2a of the spring occupy the end portion :of. =,the roller and apply a-"desired expansive effort to the segments, the intervening convolutions being :of sufiiciently reduced diameter to"= clear the se ments. The spring ends 2bare bentslightly: toward the roller axis to-avoidsuch -contacttwith the segments as might resist compressionloii-r'th'e end convolutionsl' The' end portions 3= of the described roller have a reduceddi'ameter-resulting from annular-shoulders '3a," andare i-nserted in" heads formed by sheet metal caps l and 411 having peripheral annular. flanges" 5 to embrace such end portions. Said caps-limit the expansive responseof' the segments to'the ex pander 2, and each; flange! is formed 'with a 'pair of opposed inturned lugs 'G' engage'd between-the segments and maintaining their bpposed relation. Said lugs, however, I are loosely insertedbetween the segments, ifiordin'g a; slight predetermined reduction oi the roller diameter."

\ I The described{ oller-is journaled-on'a shaft l, bushings 8 :being' rigidly setinto the caps to receive, the Shaft. f It is; preferred to form-the shaft as one end';p'ortion oi' a rod whereof'the other end. portion 9' carries' a handle 1 ill trans yerseito, and spaced 'iro n- 'theroller;- 'the' ro'd hay}- ing" a goose-neck" portion H interconnecting its parts I and 9 The "caps "are maintained *in engagement with the egments [by-suitable abutments on the shaft. Thus a collar 12 press-fitted on the shaft exteriorly engagesthe cap' 4 adjoin ing the goose-neckpanda headed screw l3 in serted' in the free end of theshartrenga'ges the q t; i-'.g 5i;

the segments, whereby the latter frictionally holdthe sleeve in place due to anexpansive reaction of the spring convolutions 2a. It will. be noted that the shoulders 30. have a frusto-conical taper adapting them to react like cams to' end thrust applied by the sleev l4, l5, suehend thrust ef fecting a compression of the roller. Provision of the reduced end portions 3 on the roller is neces sary to allow the caps 4 and 4a to embrace said portions, without requiring capsso large as to interfere 'with'sliding the sleeve [4, 15 on and oil the roller. When the sleeve is removed, the mainlength ofv the roller must of course have a diameter slightly exceeding the interior diameter of said sleeve, since thelattor is requ 110 induce aslight roller compres ion, It is an important principle .of the construction that the tape 4 and to apply an initial compression to the spring zyminimizing the requisite further com,- pression to be imposed by the sleeve l4, l5 for a frictional retention of such sleeve, Attention pa u arly directed to the several functions on ercised in the described structure by the caps 4 andlla- Thus such caps, by reason of their lugs 5, maintain the proper opposed relation of the m n s. Add tionally. the caps. serve. m 9 junctionwith the. segments, to apply a desired initial compression to the

spring

2, 2a. Furth rmore, they act as journal a mgs to tatively mount the roller on its shaft. Also, they serve as closures for theroller ends prevents access of paint or the li e to the roll 1nterior. a

Referring now, to Fi s, 5 aud o. duplicates the structurealready described. a r a ds the egmental roller with reduoedends .3. a nular shoulders 3c. and caps 4 and 1 with flanges .5, lug .6 on such-oaps,;-.the shaft bushin s 8', collar screw l3 and two-part sleeve W, l5. In this modifi ation. howev r. he coil d spr g, 2 1s re pl c d bra pair oi arcus e spr ngs l6, .r spectively ca ried by th respective se men s, at re verse ends thereof. Eac s ri g, 16 has a yoke portion, riveted at H to its supporting segment. and a nairof spaccdend por ions stressed a ai s the oppositesegment I In .themodifioafion showninFlgsa d 8. the parts again dupl c t tho e fi st descr bed. cs: cept the springs. In place of springs 2, th s mod1 fl stion .mounts .o pair of spreader spr ngs 18 on each can i'fa dda. Each such spring has a y ke p rti n lil we or herwlse c ntrally fixed on the corr spo din canand compr s s a pair of d vergen l s proj c ing from. the cap into the olle andapplying a spread ng effort to the two segments '2 en ng, to thrust the see m nts agains he anges 5", v It will lac-n ted that the nvention, in each of its severe-l d scribed form employs a roller formed y a pairs: opposed dup icate sheet! metal stampin s. len ing themselves to 111.11 6 in: xp nsi e. p oduction. It is not necessary that these stampings be resilient, and it hasabeen themodification shown by 4 found that the desired resilient expansive effort of the roller may be more readily, accurately, and economically derived by employing separate spreader springs, than by forming the roller, itself, of spring material. Moreover, the present arrangement lends itself to a stronger construction, since the roller body is not required to flex, and hence will less easily lose its proper shape.

It will be noted that thelugs 6, in addition to assuring a proper opposed relation of the segments I, also assure a rotation of the segments in unison with the caps 4 and 4a.

' Fig, 9 illustrates a construction in which two complementary roller segments 20, spaced apart at opposite sides of a shaft 2|, are marginally formed with inturned lugs 22 and are yieldably rged part by one or more pairs of looped springs 23, each such spring having a yoke portion engaging or adjoining the shaft and a pair of legs inserted in opposed lugs 22 of the two segments. In'other respects this modification conforms to the constructions heretofore described. I

What I claim is:

1. An appliance for painting and like operations, comprising a shaft, a plurality of clone.- gated segments, spaced apart and outwardly spaced from the shaft and jointly forming a hollow roller and movable to and from each other to contract and expand the roller, a resilient expander for the roller disposed between the sage ments, a pair of heads freely rotative on the shaft at the roller ends and shaped and proper.- tioned to effect a predetermined contraction of the roller, means on the shaft resisting disens gagement of the heads from theroller, and a Work=engaging sleeve fitted over and proportioned to effect a further contraction of the roller and having an exterior paint=retaining pile.

2. In an appliance for painting and like ops erations,.as set forth in claim 1, means on said heads restraining the segments from material relative rotation.

'3. In an appliance for painting and like opera tions, as set forth in claim l, a pair of lugs car:- -ried at the periphery of each head and project ing substantially toward said shaft and engage ing saidsegments to restrain such segments from material, relative rotation.

e. An appliance for painting and like opera.- tions, as set forth in claim 1, said heads being formed with substantially annular flanges em, bracin the roller ends to limit expansion of i ;he roller, oneof said flanges having a pair of lugs struck inwardly therefrom and engaging-thesegments to restrain the'segments from material relative rotation.

5. An appliance for painting and like opera tions, as set forth in claim 1, atleastone of-said heads having a lesser diameterv than the limiting expanded exterior diameter of the central portion of the roller between said heads, and the-end portions of the roller being reduced relative to its central portionto engage said head, whereby said sleeve may slip freely endwise over said head to eontractively engage th roller.

An appliance for painting and like opera. tions, comprising a shaft, a plurality of elonated" segments,- spaced apart and outwardly spaced from the shaft and jointly forming a hol. low-roller; and movable to and from each other to contract and expand the roller, a pair of spring elemen s respectively ccupying the respective ends f the ollerandcoiled about the roller axis and confined between said segments to former! expander for the roller, a pair of heads freely rotative on the shaft at the roller ends and shaped and proportioned to effect a predetermined contraction of the roller, means on the shaft resisting disengagement of the heads from the roller, and a Work-engaging sleeve fitted over and proportioned to effect a further contraction of the roller and exteriorly having a paint-retaining pile.

'7. An appliance for painting and like operations, as set forth in claim 6, said spring elements comprising end convolutions of a coiled spring, having convolutions of reduced diameter between its end convolutions.

8. An appliance for painting and like operations, comprising a shaft, a plurality of elongated segments, spaced apart and outwardly spaced from the shaft and jointly forming a hollow roller, and movable to and from each other to contract and expand the roller, a pair of spring elements respectively occupying the respective ends of the roller and coiled about the roller axis and confined between said segments to form an expander for the roller, a pair of heads journaled on the shaft at the roller ends and shaped and proportioned to effect a predetermined contraction of the roller, means on the shaft resisting disengagement of the heads from the roller, and a work-engaging sleeve fitted over and proportioned to effect a further contraction of the roller and exteriorly having a paint-retaining pile, said heads having a lesser diameter than the limiting expanded exterior diameter of the central portion of the roller defined between said heads, whereby said sleeve may slip freely endwise over one of the heads to contractively engage the roller, shoulders being formed on the roller at the juncture of its central and end portions and said spring elements being confined between such shoulders.

9. An appliance for painting and like operations as set forth in claim 1, said segments forming a pair disposed at opposite sides of the shaft, and said resilient expander comprising a pair of springs occupyin the roller ends and curved about the roller axis, each such spring having a mid portion secured to one of the roller segments and a pair of end portions bearing on the opposing segment.

10. In an appliance for painting and like operations as set forth in claim 1, said segments forming a pair disposed at opposite sides of the shaft, and said resilient expander comprising a pair of springs occupying the roller ends, means securing said springs respectively to the respective heads.

11. An appliance for painting and like operations as set forth in claim 10, each of said springs comprising a mid portion centrally secured to the correspondin head and a pair of spaced end portions respectively interiorly engaging the respective segments.

12. An appliance for painting and like operations as set forth in claim 1, said segments forming a pair disposed at opposite sides of the shaft, and said resilient expander comprising a pair of springs occupying the roller ends and curved about the roller axis.

13. In an appliance for painting and like operations as set forth in claim 12, means restraining said springs from travel along the axis of the roller.

14. In an appliance for painting and like operations as set forth in claim 1, said segments forming a pair disposed at opposite sides of the shaft, and said resilient expander comprising a pair of expansively acting looped springs disposed at opposite sides of the shaft and each having ends respectively anchored to the respective segments.

15. An appliance for painting and like operations as set forth in claim 14, the longitudinal margins of each segment being formed with opposed lugs projecting toward each other, and said looped springs being anchored to said lugs.

EARL E. THOMAS.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,036,671 McDevitt Aug. 27, 1912 1,441,781 Carlson Jan. 9, 1923 2,381,301 Markle Aug. 7, 1945 2,427,581 Touchett Sept. 16, 1947 2,520,863 Thomas et al Aug. 29, 1950 2,543,193 Palotsee Feb. 27, 1951 FOREIGN PATENTS Number Country Date 530,480 Great Britain Dec. 12, 1940 726,447 Germany Oct. 14, 1942