US1781460A - Dusting mop - Google Patents

Description

Nov- 11, 1930. H. HERTZBERG 1,781,460

DUSTING MOP Filed Feb. 6, 1929 wmv-11111111 I l* WMM i W1 .1111 1,1 I

AT TQRNEY Patented Nov. 1,1, 1930 PATENT y OFI-1c HARRY HERTZBERG, or BROOKLYN, NEW Yom:

DUSTING MOP `Application led February 6, 1929. Serial No. 337,867.

This invention relates to improvements in dusting mops and particularly to that type of such mops in which a loop shaped metallic frame carries the mop material.

It is the object of the present invention to provide a mop` frame which forms a closed loop covered by a sheath of fabric having mop cords which form a heavy fringe thereon and means Vfor quick attachment ofsaid 19 sheath to its frame or removal therefrom.

Itis another object of the invention to provide a mop frame which holds and clamps the mop sheath so that it cannot be accidentally removed from the frame. i It is a further object of this invention to provide a looped mop frame which yields .resiliently on its forward stroke when striking a solidl object or by friction against the surface which is being cleaned.

Vith these and other objects in view which will become clearer as the description progresses, the invention consists in a novel construction and combination of parts hereini u after more fully described and finally pointi' 20 ed out in the appended claims.

In the drawings which form a material part of this disclosure:

Fig. 1 is a perspective frontelevation of a mop embodying the invention showing two separate sheaths partly assembled on the frame. y

y Fig. 2 illustrates the mop of Fig. 1 when completely assembled.

Fig. 3 shows the mop frame illustrated in Figs. 1 and 2 during the application of a single mop sheath to both arms of the frame. Fig. 4 shows the mop of Fig. 3 completely assembled. `-Fig.5 is a diagrammatic illustration of a '1Q y looped mop frame having `overlapping arms in its rearward portion.`

Fig. 6 is a diagrammatic illustration showing the invention applied to a mop frame of triangular shape.

Fig. 7 is an enlarged detail elevation of the resilient 4connector which joins the mop frame arms to the mop stick partly in section on line 7--7 of Fig. 1.

Fig. 8 is a side elevation of Fig. 7 partly .CJ in Section on line 8-8 of that figure.

Referring to the drawings, 10 is a helical l coil of wire, having an open wound portion 10a and a closely wound portion 10b of smaller` diameter. Portion 10a forms a threaded socket for aniop stick 13 the bottom of which leans against the first turn of 10b which forms a stop therefor. The coil portion 10b holds the ends of two metallic bars 11 lying fiat against each other. The end portions areshaped as shown in Fig. 7 havin a taper portion 11a, a wide portion 11c an a narrow portion 11". Outside of coil `10 each bar 11 is bent to form a U shaped resilient arm bent in opposite direction to `the other bar as shown in Fig. 3. of bars 11 overlap each other fora `distance and their fiat sides leanagainsteach other, end portion 11d pressing inwardly against end portion llcrwhich presses in outward direction. In this manner a continuous loop is formed by the two arms without any open space therein. i

The mop material 14: is bound in by tubular fabric sheaths 15 which are slipped upon each one of the arm-ends 11d and 11e. A separate sheath 15 may be used for each arm as illustrated in Figs. 1 and 2 or a single sheath of double length as shown in Figs. 3 and 4. For applying the double sheaths to a mop frame, ends 111 and 11e are pressed apart by hand and a sheath 15 threaded over the free end of each arm 11 so far, that the overlapping end portions remain uncovered as shown in Fig. 1. The ends are then released to snap against each other and the sheaths are stretched over the overlappin arm portions to cover them as shown in ig. 2.

` A single` sheath for covering both arms is applied to the mop `frame as shown in Fig. 3 by threading one of its open ends on each arm and allowing an empty middle portion of` the `sheath to lie between the flat inner faces of 11.d and 11E forming a reverse bend and clamping it tightly between said ends as shown in Fig. 4.

\ The fastening of the two frame arms 11 to coil 10 is a modication of my invention shown and described in my application for Letters Patent entitled Holder for dusters and the like Ser. No. 275,985 filed May 8th,

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