Патент USA US2405832код для вставки
Aug. '13, .1946. 23,405,82 O. E. JOHNSON WRINGER Filed. Sept. s, 1943 ' 50 ' _ 54, 2 Sheéts-Sheet 1 52 N v 55 27' ITH'H1'. ' ‘ 54, "-.:-~_ HM" '. J . " Z5 ,24 Aug. 13,1946.’ "O'.E.JOIHNSON - I ~ 2,405,832 WRINGER Filed Sept.‘ e, 1945 2 Sheets-Sheét v2 ‘ fizz/safer 0%? E Johnson, Patented Aug. 13, 1946 2,405,832 UNITED‘ STATES PATENT OFFICE,’ ' 2,405,832 WRINGER Otto E. Johnson, Chicago; Ill. Application September 6, 1943, Serial No. 501,352 1 2 Claims. (o1. 68-265) This invention. relates to an improvement in wringer construction for use in laundering oper ations primarily‘ for dehydrating clothes after they have been laundered preparatory to drying. 2 guard structure which is useful. and ei?cient in ‘its operation‘ as well as practical in" construction, it being of such simple design as to permit eco nomical quantity production thereof. One object of my invention is to provide‘ safety 5 Other features and advantages resident in my guards for a wringer so designed to protect the invention will become apparent from an exami ?ngers of the operator. Clothes fed thru‘ the nation of the accompanying drawings and refer ordinary wringers make it necessary for an oper ence to the ensuing description wherein like sym ator to get an end of the garment close enough bols are used to designate like parts, and in to the rolls to be gripped,' and ofttimes operators 10 which: in their effort to get the clothes started carelessly Fig. 1 represents a front elevation of a wringer or accidentally get their ?ngers caught between incorporating the features of my invention with the moving rolls and ofttimes the clothes after a portion thereof broken. away in order to more being started will have a tendency to catch and clearly elucidate the nature of the construction wind about the rolls. These are objections which ‘and utility of my invention. are to be prevented by the use of such structure . Fig; 2 is an end view of Figure l, with certain‘ as I have provided and which comprises my in portions thereof in section in order to show more vention, the object being to prevent accidental clearly the structure of the component elements grabbing or pinching of the ?ngers‘within the comprising my invention. wringer or between the rolls, and also to provide 20 Fig. 2a is a fragmentary end view showing the means for‘ stripping the clothes and facilitating rolls in their‘ outer-most position when looking at their ejection from the opposite side of the Figure 2, showing material fed between the rolls, wringer thus preventing bunching' up and catch showing at the same time the position of the ing of the clothes about the wringer rolls. This guard with respect to the movement occasioned also‘ has a tendency to prevent injuring the 25 by the material being introduced between the clothes and? thus makes for a more efficient oper-_ wringer‘ rolls. ation. Fig. 3 is a slightly enlarged fragmentary= top Another object of my invention is to provide view taken on the line 3'—-3 of Figure I, ‘guard means‘which are mounted on the roller‘ Fig. 4 is a perspective view of the upper guard axis and which are‘ designed to operate with the 30 comprising my invention. movement of the upper roller thus preventing the Fig; 5‘ is a perspective view of‘. the lower guard material from winding around the rollers and comprisingmy invention. causing harm to the material and preventing the Fig. 6' is a perspective view of the guard mount operator's ?ngers from being caught or impinged and clearly illustrates the construction thereof. in between the rollers; Fig. '7v shows a schematic end view of a modified Another object of my invention is to provide form of upper guard structure comprising a part guard means which Will permit‘ adjustment to of my invention, the said view indicating the compensatev for the wear of the rollers used in position of the upper guard when the rolls are in the wringer structure proper. contact and when a piece of material is about to Another object of my invention is to provide‘ a substantially centrally positioned feeding opening in the composite guard structure thus affording the maximum of protection, inasmuch as the. upper guard practically covers the rollers thruout be fed therebetween. Fig. 8' shows a view similar to Figure 7 showing the material of a certain thickness which has been interposed in between the wringer rolls‘ indi cating the‘ actuation of the upper guard mem— their entire length except for the said central. 45 bers, feed opening, thus minimizing danger to'anyone Fig. 9 shows the maximum opening between the operating the wringer. guard rolls when a rather thick piece‘ of‘ material Another object‘ of my invention is to provide has been introduced therebetween. a wringer and guard structure which permits Fig. 10» is a fragmentary top view of Figure '7 feeding‘ the material into the wringer' from either 50 elucidating more clearly the guard structure with the right or left hand side, in which event the rotation of the rollers is similarly reversed to suit conditions; the direction of rotation being away from the‘ operator. Another object of my invention is‘ to provide a ' ‘ respect to its mounting for suitable operation as it is to be attached to the wringer proper; Referring to the various views, in Figure 1, is shown a wringer body generally designated I l which may‘ be» made of sheet material. with suit 2,405,832 3 4 . able ribbing in order to properly reinforce the the guard mountings 36 ?oat with the upper roller, same. The front and rear thereof are each pro vided with a material rest or guide platform des are merely held in place ?rmly by the pressure ignated l2 and thus the structure is adapted for material‘ being ‘fed from either the right or left side of the wringer as indicated in Figure 2. The whereas the ones attached to the lower roller of the upper roller on the lower roller. Thus it can be seen that the guards have a de?nitely wringer structure is, preferably, hollow and the mounted relationship with respect to the rolls and are in co-axial alignment with the said rolls. It is sides of the frame portion are provided with to be noted that the upper guard has a narrower portion at the center'thereofiindicated 44 and openingsor recesses |4whiclraccommodate the bearings’ i?'and 24.~*The bearing; '|6>»is slotted 10 an angular apron or extension 431021 each end as indicated‘at‘ll ‘in order to permit the shaft 18 of the lower roller 29 to be cradled thereirh. whereas the upper‘ bearing 24 is provided with a which provide maximum concealment 'of the roller structure so as to minimize accidental catching of the hand or the ?ngers. slotted portion 23 which is somewhat elongated, - if A modi?ed form of my invention is illustrated c in order to permit the rollers 291 and 2| to remain 15 .at Figures '7, 8, 9 and 10. Referring thereto, the in suitable contacting relationship when the force ' lower roll 26 is similar to the one shown in Figures of spring 25 is exerted thereupon. . > The lower bearing I6 is supported by apin 15' 3 which is driven into the body ||. The spring 25 is preferably of a flat type construction made 20 rigid enough‘ in order to'exert suitable pressure between the rollers, and is secured to the ?tting 21 and within the slotted portion 26 of the said 1, 2 and _3~as being provided with a similar guard mount 36 and provided with guard 39 on each side suitably clamped in place by virtue of clamp screws 52. The upper roll in this particular in stance, however, is equipped with a different type of guard which is shaped similar to the guard '49. however, the guards are provided with suitable lugs 56 which provide bearing‘ extensions 62' ?tting which is also provided with a hub portion ~ 28 in order to hold rotatably the threaded por 25 placed in abutting relationship and mounted on the shaft 22. ' tion 30 of the hand knob 29. The said hand knob The guards 54 are similarly shaped to the‘ones 29 has its threaded‘ shank 30 working within a indicated inFigure 4 and designated 46, that is threaded bearing 3| which is provided with a with angular extensions 55 'and an inwardly cut suitable flange 32 soldered or welded to the cover 33 which encloses the spring structure. The cover 30 out portion 56 at the middle thereof, and op erate by virtue of arcuate cam like slots 58'which. 93 is enlarged as indicated at 34 and is ?anged open and close them depending on the position at 35 in order to permit the same to be attached of-theupper roll. The guard moves with the securely to the frame member | | by any suitable means. ' ' To the frame-work H and within its central open portion are secured the drain; elements ‘l3 upper?roll, whereas-the arcuate cam grooves 58 arecaused to operate on the stationary pins 51,’ the saidpins being ?xedly mounted in the frame work of the wringer. ' which allow the liquid exuded from the laundered As can be seen in Figure 7, when the material clothes interposed between the rollers to drip 53 is initially positioned to he grabbed by the down and thus maintain the roller structure rather dry. The rollers are, preferably, cham 40'. rollers 20 and 2|, the guards are in the outer most position. When the intermediate position is fered at the ends, this feature being conducive reached as indicated in Figure 8, the guards tend to proper draining of the liquid pressed from the to close in more ?rmly, guiding the material and material interposed between the wringer rolls. the lower guard 39 acting as a stripper and pre Within the side portions of the frame II and at their inner sides the slotted portions 5| are 45 ventingjthe material from winding about the roller 20, also minimizing the opportunity-for a indicated which areadapted to receive the guard ?nger of the hand to be caught in between the mounts 36 which are provided with longitudinal roller, yet if a considerable thickness of material slide or heel portions 48 which ?t within the slot is fed in between the rolls as indicated at Figure ' 36, inasmuch as they are mounted on the rollers. 50 9, it causes the rollsto be separated the maxi mum distance permitted by their range of adjust The lower- roller is usually the driven roller'and ment, the upper guard 54 comes even closer to the ?at IS on the shaft IB is provided for suitable the guard 39 thus further minimizing the at coupling to a handle or to power means which is tendant risk of the ?ngers being caught between usually'a kind of gear train and suitable'motivat ing equipment which may be secured to the lugs 55 the rollers. The guards 54, Figure 10, have their hearing portions 62 mounted alongside in abut 6| and the holes 62 are provided for bolting the ting relationship, whereas on the opposite end transmission into place. 7 ‘ 5|, thus. preventing rotation of the guard mounts The lower guard mount 38 allows the shaft |8 to ?t rotatably thru the openings or holes 4'! and , thereof the bearing portions 62 are in alternate abutting relationship. ' ‘ is provided with two angular extensions 31 and 38 60 With further reference to Figure 2, I wish to which are suitably drilled at 49 and also pro call attention to the designation of the ?ngers of vided with the threaded holes 56 adapted to re a hand, which shows that it would be rather dif?- ' ceive the binding screws 52 which clamp into cult for the ?ngers to catch in between the‘ rolls, position the primary guards 39 and the secondary inasmuch as the guards have to be contacted ?rst guards 40 respectively by virtue of the pins 45 65 and the opening of the throat formed between and 46 secured at each end of the guard. The the portion 44 of the upper guard and the con contact surfaces of the guards with respect to the vex surface of the guard 39 does not provide suffi rolls are, preferably, recessed as indicated at 4| cient gap for the ?ngers to vbe drawn in between and 42 so as to permit the screws 52 to clamp the pins 45 and 46 attached to the upper and 70 the’ rolls. Furthermore, if the ?ngers should be drawn in, the guards 39 will de?ect the ?nger to lower guards 40 and 39, and the guards as shown contact the upper roll only and more or less pro are recessed at 4| and 42 in order to permit of tect the‘ ?nger from being wedged in between adjustability when the rollers 29 and 2| wear as a the rolls; that feature is readily shown in Figure result of continualuse. a _ It can be, readily, seen from the drawings that 75 '2 where the ?nger is directed upwardly rather 2,405,832 5 than between the tangential contacting surfaces within the realm of the accompanying drawings, of the rolls. The operation of the wringer containing my guard is very simple, the knob 29 is adjusted so that spring 25 will exert the most suitable pres sure depending on the thickness of material that is to be fed in between the rollers for wringing purposes. The entering edge of the material is inserted underneath the apron 43 and permitted as well as within the purview of the foregoing description; my invention'to be limited only by the following claims. Having thus described and revealed my inven tion what I claim as novel and desire to secure by Letters Patent is: 1. In a wringer mechanism provided with feed rollers rotatably mounted, guard means mounted to rest on the table I 2 on eitherside of the 10 so as to contact the cylindrical periphery of one wringer, that is either from the table l2 at the of the said feed rollers, and complementary guard left or from the table I2 at the right, and the means mounted so as to contact the cylindrical corresponding direction of rotation is imparted periphery of the other of said feed rollers, the the rollers 20 and 2|. said guard means and the said complementary When the material is brought into intimate 15 guard means being disposed longitudinally of said contact thru the throat portion 44 with the rolls, feed rollers and on opposed sides of the line of the said rolls will bite the edges of the material contact of said feed rollers, the said comple and grab it and cause it to be drawn thru the mentary guard means provided with apron ex wringer rolls. The action of the lower guard 39 tensions at each end thereof in over-lapping at the forward end where the material is fed in relationship with the said ?rst-mentioned guard cooperates with the upper guard in order to pre means to prevent accidental mangling of the vent accidental grabbing of the ?ngers or the hands of an operator in that portion of the hand of the operator, whereas, the guard where wringer extending beyond the range of the said the material exits from the wringer causes the feed rollers. material to strip properly and prevents tangling 25 2. In a wringer mechanism provided with and winding about the rolls. The overlapping upper and lower feed rollers, guard means se apron extensions on each end of the guard 43 cured to the lower feed roller adapted to contact prevent the hands of an operator from being the cylindrical surface of the said lower feed mangled accidently by the mechanism outside roller, articulate guard means secured to the the range of the pressure rollers. 30 upper feed roller, the said articulate guard means I believe, I have herein shown and described provided with cam means, and pin means secured preferred forms of my invention, and I realize to the said wringer mechanism cooperating with that the same is susceptible of many modi?ca tions, alterations, and improvements, hence I reserve the right to all such modi?cations, alter ations, and improvements which come within the scope and spirit of my herein revealed invention, the said cam means to restrict the gap between the said ?rst mentioned guard means and the said articulate guard means when the upper and lower feed rollers are separated. OTTO E. JOHNSON.