US1574666A - Surface cleaner - Google Patents

Description

Feb. 2a, 1926.

. W. B. LYNCH SURFACE CLEANER Filed April 15, 1925 INVENTOR I I ZLL/AM 5. Awvo ATTORNEYS Patented Feb. 23, 1926.

UNITED sra'rss WILLIAM B. LYNCH, OF BROQKLYN, NEW YORK.

snnracn CLEANER,

Applidationhled April 15, 1925. Serial No. 22,331.

To all whom it may concern:

Be it known that 1, WILLIAM B. LYNCH, a citizen of the United States, and a resident of the city of New York, borou h of Brooklyn, in the county of Kings and l ltate of New York, have invented a new and Improved Surface Cleaner, of which the followlng 1s a full, clear, and exact description.

This invention relates to surface cleaners, and has for its object the provision of a device having a pair of closely associated concavo-convex flexible members, the cooperating free or working edges of said 'members exerting varying pressures consecutlvely on the. surface to be cleaned. I

Another object of the invention is the pro" vision of a device having a pair of closely associated flexible blades curved rearwardly from the line of action of cleaning so that when the free working edges are applied they will frictionally engage the surface to be cleaned at substantially a right angle to the surface instead of being dragged across said surface and thereby provide for a more thorough cleaning.

lVith the above recited and other objects,

in View, the invention resides in the novel construction set forth in the following specification, particularly pointed out in the ap pended claims and illustrated in the accompanying drawings, it being understood that the right is reserved to embodiments other than those actually illustrated herein, to the full extent indicated by the general meaning of the terms in which the claims are ex pressed.

In the drawings Figure 1 is a transverse vertical section of the scrubbing head of the mop showing the position of the blades applied to a surface and before the mop is propelled.

Figure 2 is a transverse vertical section of the scrubbing head of the mop showing the position of the blades when in cleaning action.

Figure 3 is a bottom plan view of the head of the mop.

Referring more particularly to the draw ings, 1O designates a block forming part of the head which has a flat outer surface, as shown at 11. The inner surface, as shown at 12, may be rounded 05 in any desired manner, and a passage 13' is provided located centrally of the block and passing entirely through the same to receive the lower end of the handle 14. i

A pair of blades 15 and 16 forming the cleaning elements of my device are secured to the flat surface 11 of the block 10 by means of a cleat 17 and screws 18. The cleat 17 may be made of wood or metal or any other material suitable for the purpose and extends longitudinally of the outer surface ofthe block and terminates short of the edges of the blades. The cleat ismade relatively thin in order not to interfere with the operation of the blades when applied to a working surface '19.

It will be noted that the blades are relatively straight intermediate their ends,-and where connected to the block 10 the free pro- 'jecting portions 20 of the blades are concavo-.

convex in cross section with the working edges 21 rounded. A wire or cord 22 is inserted between the inner faces of the free portions 20 of the blades and at points where the blades are connected to the block 10 so that the free portions of the blades will be slightly spaced from each other in order to prevent'interference of the blades when in operation. A screw 23 is passed through the block 10 and transversely through the lower end of the handle 14 for aiding in securing the handle in position.

In the operation of my device, either of the oppositeworking edges 21 of the blades are applied to the working surface, as shown in Figure 1, with the blades assuming a position which is directed outwardly from the handle 14 with the rear portions of the working edges resting on the floor. However, when the head is forced forwardly for cleaning the surface, the lower ends of the free portions 20 of the blades will assume a position which is at substantially. a right angle to the working surface so that the working edges 21 of the blades will be in direct and frictional contact with the surface to be cleaned.

While the blades 15 and 16 are made of flexible material, they have sufficient rigidity to prevent the free portions 20 from assuming a position which is in line with the intermediate flat portions of the blades and thusv prevent the working edges of the blades from being dragged over the floor rather than havingits usual frictional engagement with the workinglsurface when the free portions 20 of the blades are at right angles to the surface to be cleaned.

Having thus described my I invention, I claim:

1. A surface cleaning device comprising a block, a plurality ofcloselyaassociated.flexis ble blades secured to the block, the portions of the blades free of the block being-concavo--- convex in cross section andextending forwardly of the block, said concavo-convex blades cooperating with each other to cause the free ends'of the blades to maintain a positive contact with the floor.

2.- A surface cleaning device comprising a block, a plurality'of closely associated flexible blades secured to the block, the portions ofthe blades free of the block being concavo con-vex 1n cross section, and extending fOlwardly 0t the-block, said concave-convex wardly of the block,- and a wire located ,be-.

tween the blades at points adjacent the edges of the block for slightly spacing the blades froineach other.

4:. A surface cleaning device comprising a block, a plurality of closely associated flexible bladessecured tohthe block, the free portions of the blades projecting from the adjacent edges of the block and curved outwardly from said block whereby when the working edges are applied to a surface to be cleaned the curved portions will cooperate with each other to assume a substantially righttangular position with respect to the surfaceso that the working-edges will frictio'nally engage such surface.

5. In a surface cleaning device comprising an oblong. block, a plurality of closely associated flexible blades having fiat portions in engagement with the longitudinal outer surface ofsaid block, the blades being provided with portions extending beyond the longitudinal'edges of the block'and curved outwardly from saidfbloclgacleat extending longitudinallyof the blades, means for securing the cleat and likewisethe blades in rigid engagement with the bloclnand a wire extending,aroundithe block and between the blades Iforslightly spacing the blades from each other. 7

7 WILLIAM B. LYNCH.

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