US1575774A - Wringing apparatus - Google Patents

Description

March 9 1926.

S. C. I AwI- OR WRINGING APPARATUS Filed Nov. 12, 1920 3 sheets-sheet 1 March 9 1926. 1,575,774

S. C. LAWLCR WRINGING APPARATUS Filed Nov. 12 1920 5 Sheets-Sheet 5 .5 i I I 90x34 32 l HRI." 36 l I' 35 I xl' .IIJ `l Patented Mar. 9, 1926.

'UNITED sra'rss snvrnorrv o. Lawton, 0F CHICAGQ. ILLINOIS.

WRINGING APPARATUS.

Application led November 12, 1920. Serial No. 423,573.

To all whom it may concer/a.'

, .Be it known that I, SIMEON C. LAwLon, a citizen of the United States, residing at Chicago, in the countyof Cook and State oflllinois, have invented certain new and useful. improvements in lV ringing Apparatus; and .l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in wringing apparatus, and more particularly to such as is especiallyadapted for use in connection with scrubbing pails andy like containers.

- The object vin view is the Aimprovement of such apparatus as is disclosed in my United States Letters Patent No. 1,085,34ft, dated January 27, 1914;.

A more detail object is the provision of wringing means susceptible of easy and quick application and removal to and from a `scrubbing pail or other like. container, and a, stili vfurther Objectis the construction of a wringer roll insuch form as to insure effective gripping of a mop or like article being wrung so asto prevent slipping of the rollers and failure` inthe wringing operation.

With these and further objects in view as will in part hereinafter become apparent and in part be stated, the invention com-l prises certain novel. constructions, combinations and arrangements of parts as subsequently specified and claimed.

ln the accompanying drawings,-

Figure l is a perspective view of an apparatus embodying the features of the invention, the parts being shown as applied to a pail.

Figure 2 is a plan view thereof on a slightly enlarged scale. v

Figure 3 is a front elevation, a fragment of the pail being shown in section, and parts being broken away and other parts being shown in section.

Figure 4- is an end viewA of the parts de tached, parts of the clamping means being broken away.

Figure 5 is a similar view of the opposite y plane indicated by line 6 6 o f Figure 2:

` Figure 7 is an enlarged, detail, perspectlve f view of the movable wringer roll and its hinged bearing detached, fragments of the roll being shown broken away for disclosing the ,construction of the .elges of .the gripping slots. y

ligure 8 is a detail section taken' onthe plane indicated by line 8 8 of Figure il.

Figure 9 is a vertical section taken .on the plane indicated by line 9 9 of Figure 2.

Figure l() is a perspective View of the pivoted hinge plate of thefmovable rollerhdetached and'shown on an enlarged scale Figure 1l is an enlarged, transverse section through the slotted wringer roll detached, the parts being shown on an enlarged scale. Y

Figure l2 is a detail stop plates detached.

Referring to the drawings by numerals, l indicatesa pail of the type commonly used for scrubbing purposes. The present `improved wringing apparatus is adapted to be detachably clamped in operative position on the top of the/.pail rl, and to vthis end brackets 2, 2, are secured to the pail. Each bracket 2 consists of a plate having hook at its upper end adapted to overhang and engage vtheupper edge of the pail l, each plate having an outstanding arm 3 engaged by a retaining bolt or rod l which extends to the lower end of the pail and is formed 'into a tread 5. The lower portion of each rod e; extends through an outstanding arm of a bracket 6, which bracket is formed with a hook under-hanging the lower edge of pail l, and the .tread 5 of each rod 4 is formed by bending' the rod into a loop and extending plan of .one of the the return portion in position for the freev end thereof to abut against the under face ofthe outstanding arm of the respective bracket-(3. 'lhe loop Lwhich constitutes the tread 5 is bent or positioned toextend nearly at right angles to the line of rod 4, so that the treads 5 are adapted to rest upon or adjacent to the licor when the pail 1 is resting on the floor, andthe operator may place his feet on treads 5 for holding the pail and parts carried thereby against'movement during operation. The upper end of each rod l: is engaged by a nut 7 arranged above the respective arm 3 so as to enable the brackets 2 and v(l to be drawn toward each other and there-by firmly clamp the pail between the brackets. Each arm 3 extends beyond its respective rod l and its outer portion is penetrated by a bolt 8, which extends upwardly and passes through a longitudinal slot in a bar 9. A wringer frame is mounted above the pail 1, and the bars 9 extend through the respective side plates 11, 11, of the frame 19, and are clamped to the frame at the inner portions of bars 9 by bolts 12, 12, one bolt 12 extending through the slot of each bar 9 and through a transverse plate ot frame 10. A nut 1.3 1s threaded onto the upper end oit each bolt 8, above the respective bar 9, so as to enable stressing or clamping the bar toward the respective arm 3 by threading the respective nut 13 downward. Thus the trame 10 may be clamped against the upper edge of pail 1 by means anchored to both the top and bottom of the pail.

To avoid possible shifting of the frame 10, additional securing means are provided consisting of a pair of clamps at the iront anda second pair of clamps at the rear portion of the ends of the frame 10. That part of frame 10 which is nearest to the operator when he stands with his feet on treads 5 is arbitrarily called the front for facility of identication.

The pair of brackets at the front portion ot the frame consists ot plates 14, best seen in Figures 2 and 6, arranged beneath the frame 10 and each provided at its outer end with a hook 15 adapted to tit about the bead at the upper edge of the pail 1. A corner web or plate 16 is arranged at each end of the frame 10 in the respective corner out the lfront portion thereof, and, in fact, forms a part of the frame, being permanently ixed to the side and end bars of the frame. Each plate 14 underlies a portion of the respective web .16, the web being formed with a slot 17 through which extends a clamping bolt 18, which bolt also extends through the respective plate 14 and is provided with an appropriate nut beneath the web for enabling the plate 14 to be firmly clamped to the web. A bolt 19 is also passed through each plate 14 and through the adjacent portion ot' frame 19, and is provided at its upper end with a wingl nut 20, the bolt 19 being' designed to 'tunetion as a pivot for the respective plate 14 so that the plate 14 may be adjusted angularly by manipulation ot bolt 18 along slot 17. whereby the hook 15 ol" each plate 14 may be caused to assume that angle best adapted to enable it to effectively engage the bead ot the upper margin of pail 1. Each plate 14 is slotted longitudinally, as indicated at 14 in Figure 6, and the bolts 18 and 19 are passed through the slot ot the plate so as to enable the hook 15 to be moved inward or outward tor adjustment radially with respect to the pail 1. in addition to the angular adjustment.

The pair of brackets at the rear of the Vlrame 10, as best seen in Figures 2 and 9,

consists of plates 21, 21, and their connected parts. Each plate 21 is slotted longitu dinally and extends beneath the rear portion o1 frame 10 and carries a bolt 22 which extends through the slot and through an aperture in trame 10, and is provided with a wing nut 23 at its upper end for clamping the respective plate 21 to the frame 10 and holding it in rigid engagement therewith at any given adjusted position. The outer end of each plate 21 is formed into an eye 24 in which is hinged a link 25 whose tree or pendent portion is pivoted to an operating lever 26. The lever 26 is in turn pivotcd to outstanding eyes 27 lixed to a plate 28 which rests against the outer face oi' pail 1, and, when the parts are in their clamped position, has its upper edge {irmly engaging the under portion of the upper marginal bead o't pail l. The link 25 engages lever 26 intermediate its ends, while the lever is pivoted at one end to the eyes 27, so that an eccentric clamping action is produced when the lever 26 is swung downward until the lever-engaging end ol link 25 is moved beyond the pivotal connection between lever 26 and eyes 27. The resultant eccentric movement of link 25 causes the eye 24 to be moved toward the brackets 27, so that the relative movement of the parts causes the plate 28 to move upward until its upper edge engages the upper marginal bead oi pail 1 and causes the plate 21 to be clamped firmly down against said bead. To release the engagement of plate 21, it is only necessary to lift the lever 26 and to facilitate such action, a thumb piece or other appropriate handle 29, is provided for the lever 26. The lever 26 may assume various detail forms, one of which is shown, consisting ot' a stamping producing two side plates forming two sections o'f lever 26 connected by the thumb piece 29. It will be understood, of course, that the relative movement between the eye and theI plate 26 will correspond exactly with the distance between the pivot ot lever 26 to the eyes 27 and the pi rot ot' link 25 to lever 26, and the parts are proi'iortioned 'lor insuring sutlicient movement to enable the plate 28 to move ireely lo and 'from the clamping position.

The action of the rear pair ol clamps in holding the frame 19 against relative movement with respect to the pail 1 depends upon the clamping action and upon the fact that one ot the clamps is balanced against thel other so that movement o1 the frame longitudinally in one direction is prevented by one of the clamps while movement in the opposite direction is prevented by the other, and this is ordinarily amply secure. But in case the operator should desire iurther protection against possible longitudinal mo\.'ement, a plate 37 may be provided for eachclamp and is slotted.longitudinally. Each plate 37, when used, is arranged beneaththe under jface of plate 21, and the bolt 22 is passed through the vslot of the plate 37. The .end of plate 37 jadjacent the wall of pail 1 is turned or bent downward producing the flange 37 forming an abutment which may be adjusted by the operator for contact with the inner face of `the pail 1 by manipulation of the bolt22.

Thus the frame 10 may be easily and quickly attached ,or detached, the various slots in the bolted parts enabling adjustment of the parts to the most effective positions for firmly anchoring the fra-me to the pail while enabling ready detachment thereof.

Each end plate 11 of frame 10 is strength-r ened by a lateral flange 30, and each end plate is pro-vided with a slot 31 through which extends the shaft 32` of a roller33. The roller 33 will bereferredto,hereinafter as the `Iixed roller since its movement is limited to revolving and to very slight bodily movement along theslots 31. The shaft l32 of the fixed rolleris journaled at each end-in a collar 34, which is-carried by ya rod `35 extending forward from the sleeve bearing and passing through an aperture in therespective -iiange 30. A spring 36 is coiled about each rod 35 and tensioned vbetween the respective flange 30 and .the respective sleeve bearing 34, so as to press the s eeve bearing rearward, whereby the fixed roller33 is held normally with itsshaft 32 at substantially the rear extreme of' slots 31, the roller 33 being however ,free to be bodily shifted forward by sufficient stress, such as may be produced either by hard sections of a mop or by contact of the cooperating roller in vmovements hereinafter to be ,i described.

Pivoted at 3,8 to the frame 10; belowl and in the rear of one end of fixed roller 33 isan angle plate v39 whose upstanding flange carries eyesx40 between which, is arranged" the eye 41 of a hinge lfor 'the movable kroller 42.`

The. eye 41 .is of less length than thel space betweenthe eyes 40 and the pintle 43 which connectsthe several eyes is surrounded in thetwo spaces between the ends of eye 41 andthe eyes v40 by the coilsvof a spring l44.k

The intermediate portion .of the material of which spring 44 is made is formed into a loop 45 which is extended beneath the shaft 46 of movable roller 42 so as to stress the shaft upwardly. The spring 44 is su'lieiently tensioned to lift the roller 42 when the roller is free to move under the action of the spring. Upstanding from the eye 41 is a bracket, carrying a sleeve 47 in which the adjacent end portion of shaft 46 is journaled. For detachably locking the roller 42 to the slot 47, an annular groove 48 is formed in the shaft 46 at a point within the sleeve and a set screw 49 is threaded through the sleeve 47 so as to extend intothe groove 48 during Operation, and thereby allowfree rotation ofroller 42 while restraining the roller against longitudinal shifting. Thus the roller 42, when the end opposite journal 46 is free, may be swnngboth vertically and horizontally so as to take the positionindt cated in dotted lines in Figure 5 or the position ,indicated in dotted lines in Figure 2. The easy introduction of a mop between the rollers is thus insured. It is to be noted that in structures .where the roller 42 [its very closely to roller 33, the yhorizontally swingingmovement on the pivot 38 may cause the pivoted end portion of roller 42 to strike the adjacent end portion ofv roller 33 and force the latter roller against the pressure of springs 36 but, as the pivot 38l is substantially at the rear end of plate 39 thefmovement of roller 42 horizontally will be almost wholly in a direction away from roller 33 and whatever contact may occur even in a closely fittingv stri'lcture will be but very slight.` i v The end portion of the shaft of roller 42 opposite journal 4G is extended outward and-bent to form an operating crank or handle 50, a portion ofthe shaft extending beyond roller 42 a distance horizontally suflicient tocausethe crank 5 0 to lie beyond the si-de of the pail and beyond the brackets engaging the pail. This horizontally ex- To accommodate movement of the extended portion of the shaft of roller 42 to and from a horizontal-position, the end plate 11 opposite to the pivoted end of roller 42 is formedwith a slot 51 opening through the upper edge of the said side plate and extending downwardly a distance sui'icient to allow the exten-ded portion of the shaft of roller 42 to moveto and from a horizontal position through the said slotl 51. The shaft finds bearing` in the lower terminus ofthe slot 51, and to avoid the necessity for manually retaining the shaft in its lowered position, a detent 52 is arranged to overhang the shaft when in itslowercd position. Said detent 52 consists of a latch plat-e pivoted at 53 to the adjacent side plate 11 substantially in line with and beneath the slot 51. The -latch plate is shaped to extend about and overhang the shaft when the shaft is inits lowermost position, the upper' portion ofthe VVlatch plate being provided with an operating handle 54, and the lower portion of the plate, beneath the pivot 53, is weighted, as indicated at 55, so that when the latch plate is left free it normally assumes the position indicated in Figure 4, and when it is desired to release the Inovable roller the operator grasps the handle 54 and moves the latch plate to the position indicated in dotted lines in Figure 4.

When the roller has thus been released and is being returned to its horizontal position, the latch plate will have dropped back to its normal position as indicated in full lines in Figure 4, and, therefore, the exposed edge of the upper portion of the latch plate is rounded oli so that the operator may merely force the crank or handle downward, and as the extended shaft strikes the rounded portion of the latch plate 52, the plate will be cammed out ot the way, swinging on its pivot 5?. As soon as the shaft has reached its lowermost position, the weight will automatically return 'the latch plate to its normal position so that it will overhang and lock the shaft in its horizontal position.

In operation, when the parts are in thev position seen in Figure l and in full lines 1n Figure 2, the operator approaching with a mop to be wrung grasps the handle 54 of latch plate 52 and swings the plate to the position seen in dotted lines in Figure 4'. llhereupon, the spring 44 lifts the roller 42 to an upright or raised position, and i'l'Y the operator is in a hurry or does not wait vfor the roller to reach the upright position, but strikes it laterally7 as it is rising, it thereupon swings to the position indicated in dotted lines in Figure 2. The rollers are then so separated as to enable thefeasy introduction ot the mop between them. and this position has been produced with little or no etiort on the part ot the operator and by the use ot only one hand. The rollers being inthis position, the mop is introduced between them, the handle of the mop being held by one hand of the operator while the free hand of the operator grasps the handle 50 and swings the roller 42 back to its horizontal position in operative relation to roller 33. The latch 52 locks the roller 42 in its operative position and then the operator may either turn the crank 50 for wringing his mop or may merely pull the mop upward between the rollers. 0f course, the operator will be standing upon the treads 5 while these operations are being carried out.

The roller 42 is provided with means for edecting increased gripping acl ion on a mop or other article disposed between the wringer rolls and being operated upon. To this end, roller 42 is formed with longitudinal slots 56, the slots being preferably formed by slitting the material of the roller and turning baclr ianges 57, each slot 56 being bordered continuously by its flange 57,

so that, although vthe roller 42 is preferably formed of metal (usually seamless tubing), the slots 56 ldo not present cutting edges. The edges of the slots 56 are rounded, as clearly seen in Figure 1l, and yet the slots are of suiiicient width to allow material between the rollers to be pressed somewhat into the slots. Thus the roller 42 eiectively grips such material and forces it between the rollers during the wringing operation.

lVhat I claim is:-

l. In wringing apparatus, the con1bination, with a 'trame adapted te be mounted on a scrubbing pail, ol a roller rotatably carried by the frame, a co-operating, movablymounted roller, a pivotally mounted `journal bearing for the second-mentioned roller, and a pivotally mounted support for said journal bearing. v

2. In a wringing apparatus, the combination, with a irame adapted to be mounted on a scrubbing pail, of a roller rotatably carried by the irame, a co-operating, movably-mounted roller, a pivotally mounted journal bearing for the second-mentioned roller, a pivotally mounted supportfor the journal bearing, and a spring interposed bctween said support and journal bearing stressed to move said bearing and thereby to move themovably mounted roller away from the first-mentioned roller when released.

3. In wringing apparatus, the combination, with a frame adapted to be mounted on a scrubbing pail, of a roller rotatably carried thereby, a cooperating roll, a plate hinged to the frame to swing horizontally, and a leaf hinged to the plate to swing vertically, the leaf having a journal bearing in which the (fo-operatingl roll is journaled, whereby the co-operating roll is tree to swing horizontally and vertically on the frame.

4. In wringing apparatus, the combination, with a trame adapted to be mounted on a scrubbing pail, o't a roller rotatably carried by the trame, a 3o-operating, movably-mounted roller, a pivotally mounted journal bearing for the seco1ul-mentioned roller hinged to swing vertically, and a pivotally mounted support 'for said journal bearing hinged to swing horizontally.

In testimony whereof I atix my signature.

SIMEON C. LAIVLOR..

Images