US2368037A

US2368037A - Mophead

Info

Publication number: US2368037A
Application number: US487876A
Authority: US
Inventors: Osborne Lester Clark; Frank E Hoffman
Original assignee: Individual
Current assignee: Individual
Priority date: 1943-05-21
Filing date: 1943-05-21
Publication date: 1945-01-23
Anticipated expiration: 1962-01-23

Description

Jan. 23, 1945.

L. C. OSBORNE ETAL MOP HEAD Filed May 21, 1943 INVENTORS &

Patented Jan. 23, 1945 I MOPHEAD .Lester Clark Fall River Mass. and Frank E. Hoffman, New York, Nay; s

Application May 21, 1943, ser l n szsvefl 2 Claims.

This invention relates to a mop head.

It is usual in the construction of a mop head to utilize jaws for clamping a mop element formed of metal with some sort of toggle-action or spring-clamping means for holding the jaws in assembled position,

One of the objects of this invention is to eliminate the necessity of using any metal parts.

Another object of this invention is to provide a mop head formed of Wood which when wet will so swell as to more firmly bind the parts in assembled relation.

Another object of this invention is to provide a simple construction which may be inexpensively provided and quickly assembled.

' Another object of this invention is to provide a construction which can be made wholly of wood and strings or some flexible element suitably manipulated about clamping jaws.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is a perspective view of the mop head assembled and with the handle broken off;

Fig. 2 is a view similar to Fig. 1 illustrating the two clamping jaws with the mop element removed and with the strands incompletely fastened in position;

Fig. 3 is a perspective view of the center portion of the mop element;

Fig. 4 is a central longitudinally sectional View of the arrangement shown in Fig. 1 and showing more particularly the manner of arranging the binding strands.

In proceeding with this invention we provide two wooden clamping jaws and slot the same at their ends. The slots are usually centrally located so as to register one with the other. Two flexible strands knotted at their ends are then used to fasten the jaws in assembled relation to bind the mop element in position. These strands are led through the slots of the jaws at one end and then across and through the slots of the jaws at the other end for suitable fastening. The knots in the ends of the strands prevent them from drawing through the slots.

With reference more particularly to the drawing l0 designates one jaw and the other jaw of the mop head. The jaw I0 is centrally slotted as at l2 and I3 at its opposite ends While the jaw H is similarly slotted as at M and I5 at its opposite ends. The under surface of the jaw H1 is concave as shown at l6 while the upper surface offthe jaw is convex as designated at H. The arcs of these two surfaces are along radii of substantially the same dimension.

The jaw Ill has a threaded opening as at 32 and a handle 33 threaded as at 34 is screwed into this opening,

The mop element designated generally l8 consists of a plurality of rope-like strands l9 having a band 20 extending about their central portions to bind them in assembled relation. This band also serves to designate a convenient location for binding the mop element between the jaws.

The mop element I8 is laid with its band 20 located between the jaws Hi and II and these jaws are brought up firmly on the opposite sides of this mop element and against the band 2|]. A binding strand 2| having a knot 22 is positioned with its knot 22 drawn up snugly against the underside of the slot M of the jaw II and extended upwardly through the slot l4 and then swung into the slot |2 of the jaw l0. At the opposite side the strand 23 having a knot 24 is positioned with its knot 24 against the under side of the slot I5 and extends up through the slot I5. This strand 23 is then swung into the slot l3 and extends upwardly therethrough similarly to that shown in Fig. 2. The sizes of the strands 2| and 23 are such that they will fit tightly in the equal width slots and the walls of the slots will bind against the strands which will be held under compression. The strands are each then further fastened as follows; for instance strand 2| is extended across the length of the jaw ID on one side of handle 33 and beneath the strand 23 as shown at 25 and is then moved into the slot |3 as at 26 (see Fig. 4) and then into slot I5 and around the portion 21 of the jaw II and thence again down through the slot I5 as shown at 28. Similarly the strand 23 is led across the jaw H) on the other side of handle 33 down through the I slots l2 and I4 as at 29 and then around the portion 30 of the jaw H and again down through the slot M as at 3|. This arrangement provides a very firm locking of the two jaws together and in case that swelling occurs of these wooden jaws these strands will be bound more firmly in position. Likewise the strands themselves may swell and serve to cause binding of the jaws in a firm and fixed relation even though they do not swell or decrease their slot opening.

We claim:

1. A mop head comprising a pair of rigid jaw members each having a slot at each end portion thereof and with the slots of one jaw member aligned with the slots of the other jaw member,

a mop element between said jaw members and means to bind the members in firm engagement with the mop element said means consisting of at least two flexible strands each knotted at one end portion to prevent it from being drawn through a slot and each of said two strands extending from the knotted portion through the slots of the members at one of their ends and then along the jaws towards each other through the slots at the opposite ends of the members and each wound about a portion of the last jaw engaged by said strands and doubly wound through the slot of the said last engaged jaw said knotted portions being positioned in said slots at opposite ends of said jaw members.

2. A mop head comprising a pair of rigid jaw members each having a slot at each end p r on thereof and with the slots of one jaw member aligned with the slots of the other jaw member, a mop element between said Jaw members and means to bind the members in firm engagement with the mop element, said means consisting of at least two flexible strands each knotted at one end portion to prevent it from being drawn through a slot and each of said two strands extending from the knotted portion through the slots of the members at one of their ends and then along the jaws towards each other through the slots at the opposite ends of the members, said slots and strands being so relatively sized that each strand will engage the side walls of the slot in which it is positioned with sumcient friction to be bound in the slot.

LESTER C. OSBORNE. FRANK E. HOFFMAN.