US1989825A - Dust mop - Google Patents

Description

Feb. 5, 1935. o. T. scHAEFER El AL ,9

DUST MOP Filed April 29 1955 INVENTORS ATTORNEY.

Patented Feb. 5, 1935 DUST MOP Otto T. Schaefer and Robert J. Wetcher, Detroit, Mich., assignors to Schaefer-Wetcher Co. Inc., Detroit, Mich., a corporation of Michigan Application April 29, 1933, Serial No. 668,523

1 Claim.

ceilings.

Another object of the invention is the provision of a mop which can readily be used in corners, in confined places, and under objects having a minimum of vertical clearance.

Another object of the invention is the provision of a mop having its head readily removable in order that it may be replaced, washed or drycleaned at desired intervals.

Another object of the invention is the provision of a mop having a readily removable handle which facilitates its being shipped and stored.

Another object of the invention is the provision of a mop which has most of its metallic parts shielded by fabric, thereby reducing to a minimum the probability of marring the furniture when used by a careless operator.

The objects abovementioned and other advantages of our invention will be more readily understood after a careful examination of the following description wherein reference is made to the accompanying drawing in which:

Fig. 1 is a top plan view of a mop embodying our invention with portions broken away to more clearly illustrate the relation of parts.

Fig. 2 is a second top plan view showing the means of securing the mop head to the frame.

Fig. 3 is a sectional view on line 33 of Fig. 1.

Fig. 4 is a sectional view on line 44. of Fig. 1.

Referring more particularly to the drawing:

The device embodying our invention consists of the mop head '7, which is adapted to be mounted on a conventional handle 8 by the removable and adjustable means hereinafter more fully described. The head 7 consists of a sheath 9, which is preferably made of a durable fabric material such as canvas or duck. To the underside of the sheath 9 is secured, by means of stitching or other suitable means, the thrums or dust collecting elements 10. The cover 11 of the sheath 9 has a substantially rectangular centrally disposed cut-away section 12 and a radially disposed slit 13, the latter being adapted to be closed by lacing or a conventional closure element 14, commonly known as a zipper.

A wire frame 15 is secured to the base plate 16, preferably by rolling under the edges 1'7, although it may be attached with equal advantage by means of welding or sweating. The frame 15 is adapted to fit into the sheath 9 and serves as a support or mounting for the mop head 7.

Mounted on the base plate 16, by means of the centrally disposed bolt 18, is an axially rotatable plate 19, which has two upturned edges 20 with transverse openings therethrough adapted to engage the spring fingers 21, which extend from the ferrule 22 secured to the end of the handle 8. The rotatable plate 19 has a multiplicity of equally spaced apart vertical apertures 23 adapted to engage a like number of equally spaced apart stops 24 positioned on the base plate 16. A coil spring 25 is carried on the bolt 18 between the nut 26 and the rotatable plate 19 and is adapted to normally urge the plate 19 against the base plate 16.

To assemble our mop, we first insert the bolt 18 through the plates 16 and 19 and secure the spring 25 in place by the nut 26. The spring fingers 21 of the handle 8 are then caused to engage the transverse openings in the upturned edges 20 of the rotatable plate 19, after which the wire frame 15 is inserted between the layers comprising the sheath 9 in such manner that the plates 16 and 19 are exposed through the cutaway portion 12. The slit 13 is closed by the closure element 14 and the mop is ready to be used.

If it is desired to use the mop in a narrow space, the handle 8 is swung to the position indicated in Fig. 2 for obvious reasons. If, on the other hand, a wide surface is to be mopped, the handle 8 is placed, with reference to the head 7, in the position as indicated in Fig. 1 for equally obvious reasons. To rotate the head 7 about the axis of the handle 8, it is simply necessary to place the mop on the floor and place the foot on the head 7 and pull up on the handle 8 until the spring 25 has been compressed sufficiently to allow the stops 24 to disengage the openings 23. The head may also be rotated by grasping the head in one hand and the handle in the other hand and pulling them apart until the spring 25 is sufficiently compressed to allow the stops 24 to disengage the openings 23.

It is obvious that because of the manner in which our improved mop is constructed that our device can easily be forced under articles of furniture which have a very low vertical clearance.

It is also obvious that the head 7 can readily be removed and washed or dry-cleaned inasmuch as it is entirely made of fabric.

It is also obvious that our improved mop can be used with equal ease on floors, walls and ceilings simply by moving the handle to the position most adaptable to the work to be done.

It is also obvious that because the sheath 9 covers practically all of the metallic parts of our improved mop, very little danger would be encountered in scratching or marring the furniture.

Having described our invention, what we claim and desire to secure by Letters Patent is:

In a device of the character described having a handle and a frame, a rotatable mounting for said handle comprising in combination two plates, an axially disposed slidable pivot extending through said plates, means at each end of said slidable pivot to limit its displacement, means for attaching one of said plates to said frame, means for attaching the other said plate to said handle, said last named means consisting of two oppositely disposed upstanding elements having hori-f angularly disposed arms carried at one end of said handle and so arranged that the axis of said arms intersects, at right angles, the axis ot'the aforesaid slidable pivot, one or more male elements carried by one of said plates adapted to engage one or more female elements carried by the other said plate to lock said plates against individual rotation and spring means for normally urging said locking elements into co-operation. v. OTTO T. SCHAEFER.

ROBERT J. WETCHER.

Images