US2441536A - Floor scrubbing machine - Google Patents

Description

May 1 1, 1948- L; J. SIMON FLOOR SCRUBBING MACHINE Filed April 16, 1938 INVENTOR By LOUIS J. SIMON I flmw /34M ATTORIEYS Patented May 11, 1948 gin- 536 y MACHINE iio'ilis' raliit'sliiion, Ilfoi d,' E glans" Application April 16, 193s', sia l \fo.

Section 3, Public Law 696; litters, 191s Patent expires April"16,1'958 V This invention relates in apparatus for scrubbing and washing fiOQISiOf the ki nd wherein cloths are-employed to'absorb and pick up water or liquid .from the floor under treatment.

In devices of this characterthe necessity exists for the displacement of"all air-"between the cloths constituting the wiping elements and the floor to ensure the necessary suction elfect whe the cloths are drawn along over the floor, and the object of the present invention is to provide improved means for ensuring this effect being obtained.

It has been found in practice that whe cloths or wipers of the type previously employed have been in use for a short while they become hard due to the fact that they become loaded with fine particles which enmesh in the fabric as well as the constant wringing of the cloths through the squeegee rollers, and'take on a leathery formation or structure which as a consequence restricts to some extent the air displacement as well as reducing the surface capable of making immediate contact with the floor. This difficulty is overcome by providing that the cloths or wipers are made or caused to be heavier when loaded with liquid at their extremity and again by arranging to the terminal portion of the wiper, in such manner that the portion intermediate the outward extremity and the point of attachment is thinner, whereby the cloth or wiper is adapted to hinge and move more freely outwardl from the mobile attachment rod and thus have greater weight at its outward parts than at or about its pivot parts. Further, the material at the point of attachment may be non-absorbent, or of a different character from that of the absorbent material, it being arranged that the absorbent material makes contact with the floor and becomes weighted when loaded with liquid, so that when the machine carto wiping elements used;

rying the wipers is rotated, the wipers immediately slap flat on the floor thereby suddenly displacing air from underneath enabling the wipers to pick up the maximum amount of moisture from the floor by suction as they are drawn along over the floor.

In order that this invention may be more fully understood, reference is made to the accompanying drawings in which:

' any intervening air and thus enables ,the wiper mine. (01. i tbif .52 Figurelisian eleyationofmar cfa W 'p mentaccording'to atheinvent-ion; uEigure -Msair elevation of ,a" modiiica-tion figures sra transversesectionaliriew oiiie. 1,. 1 Figures .4; 5 andtf w-alt rnative methods of constru t-lower thciw ue i prdertg bt fl ibility-be wim a a f fzs rzo ,and.;

Figure '7 shows the wiping element in use.

Referring to the drawings the material I of the cloth or wiper is preferably a closely woven mixture of wool and cotton, or any material with like properties will suit providing that it is readily absorbent of moisture, has small tendency to tear or unravel, and is closely woven. This material I in the form shown is cut into strips and folded and sewn below the fold at 2 and 3, so as to form a pocket. 4 which carries the cloth carrying bar 5.

In the form shown in Fig. 1 the material is stitched as at 2 immediately below the Pocket and again stitched at 3, a piece of additional cloth 6 being inserted. Hence the insertion 6 is covered on both sides by the outer fabric l. The sides of the assembled cloth are stitched as at 1 to prevent the edges from unravelling, but the ends of the wiper are left free of any stitching. The inserted material 6 may be of like character to that of the cover I or again it may be of a different character or substance, but a material which is readily absorbent of moisture.

In Fig. 2 an alternative form of construction is shown in which tapes or loops 8 are employed to form the pocket for the bar, these loops being made of strong material, and the construction according to this form of the invention may be-in section according to Figs. 5 or 6.

Thus in Fig. 5 the inner material is secured to the loop or tape, whilst the outer covers are stitched at 3 so as to leave a flexible neck at the point B.

In Fig. 6 the tapes 8 are attached to pieces of .material I and 6, the tapes being stitched at 2 and 3 so as to provide a neck at B.

In Fig. 4 the material I is taken over the bar 5 and stitched at 2, leaving a thin neck of material at the point B.

In Fig. 7 the wiper C is shown in operation. Thus, as the hinge bars 5 rotate in the direction shown by the arrow, the bars reach a point where the flaps and 6 constituting the wiper contact with the floor. In this movement the flaps hinge or flex at the part B allowing the outer part C to slap the floor sharply and drive out to be immediately drawn flatly over the floor,

er after it has been through the squeegee rollers which extract the surplus water.

I claim:

1. A wiping element for floor scrubbing 'ma chines having an elongated supporting member mounted for movement in a rotary path, com- 4 of sufficient length to flex freely under the weight or the wiping portion.

3. A wiping element for floor scrubbing machines comprising a rod capable of movement through a rotary path, a strip of farbric folded around said rod and stitched to provide a pocket therefor, and a plurality of absorbent flaps connected to said strip and forming a continuation thereof, the point of connection of said flaps to said strip being spaced sufliciently from said stitching to leave a portion of the strip of substantial length to act as a flexible hinge between theflaps and the rod.

prising a pocket portion to extend around said supporting member, a flexible hinge portion 'onnected to an edge of said pocket portion, and an LOUIS JOHN SIMON.

The following references are of record in the file of this patent:

UNITED STATES PATENTS

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