US434254A

US434254A - davis

Info

Publication number: US434254A
Authority: US
Publication date: 1890-08-12
Anticipated expiration: 1907-08-12

Description

(No Model.)

F. B. DAVIS. BRUSH 0R MOP HEAD.

No. 434,254. Patented Aug. 12, 1890.

UNITED STATES PATENT OFFICE.

FRANK B. DAVIS, OF CHICAGO, ILLINOIS,`ASSIGNOR OF ONE-HALF- TO ALVIN C. MASON, OF SAME PLACE.

BRUSH OR MOP HEAD.

SPECIFICATION forming part of Letters Patent No. 434,254, dated August 12, 1890.

Application filed October 28, 1889. Serial No. 328,497. (No model.)

T all whom it may concern.-

Be it known that I, FRANK B. DAvIs, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,

have inveii'ted certain new and useful Improvements in Mop or Brush Headsof which Ido declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming part of 1o this specification.

My present invention has for its object to provide an improved construction of mop or brush head which can be easily and cheaply manufactured and which will present material advantages over the constructions heretofore employed.

To this end my invention consists in the several novel features of construction hereinafter described, illustrated in the accompany- 2o ing drawings, and particularly pointed ont in the claims at the end of this specification.

Figure l is a view in side elevation of the mop-head, showing a portion of the handle attached thereto in condition for use. Fig. 2

' is a view in central Vertical longitudinal section through the mop-head. Fig. 3 is a detail plan view of one of the jaws and a portion of the socket. Fig. 4. is a detail plan View of the opposite jaw with the pivot-lugs 3o cast thereon. Fig. 5 is a detail perspective View of the retaining-plate having a part of the socket cast therewith. Fig. 6 is a perspective view of the jaw illustrated in Fig. 4. Fig. 7 is a perspective view of the jaw illustrated in Fig. 3.

A designates one of the jaws of the mophead, and B denotes the opposite jaw of the head. Upon the back bar a of the jaw A are cast the lugs 2, between which extends the 4o pivot-pin 3this pivot-pin having the beveled shoulders 4, for a purpose to be presently stated. The jaw B has cast in one piece with its back bar b the shank 5 and one-half C of the handle-socket. The shank 5 is provided with the seat 6, within which will rest the pivot-pin 3, and the sides of this seat 6 are beveled, as at 7, to form a snug bearing against the shoulders 4 of the pivot-pin. The back bar b of the casting B is formed with a hole 5o or recess b', through which will pass the end d of the retaining-plate D, this retaining-plate comprising a shank 8, having a semi-annular seat 9 with beveled sides lO, corresponding to the seat and sides of the shank 5 of the casting B, and having also formedin piece therewith the half-section C of the handle-socket. By preference the back bar b of the jaw B is cut away, as at h2, to aord a bearing for the end b of the retaining plate or casting D. The outer surface of cach of the sections C and 6o C of the handle-socket is provided with screwthreads c, so arranged that when the sections are placed together in position for use a continuous thread will be formed around the periphery of the socket adapted to receive the correspondingly-threaded clamping sleeve or nut E, of ordinary construction. Vhen the parts are to be placedtogether in position for use, the jaw A will b e first set over the 4 jaw B with the pivot-pin 3 resting within the 7o semi-annular seat 6 of the shank 5, after which the end (Z of the retaining plate or casting D will be inserted between the lugs 2 of the casting A and through the hole or seatb in the back bar b of the jaw B, the plate or casting Dbeing at such time slightly raised toward avertical position, in order to permit its end CZ to pass readily through the hole b', after which the section C of the handlesocket will be brought into position against 8o the section C and the clamping sleeve or nut E will be placed over the sections of the socket, and'will thus securely retain the parts in the position shown in Fig. 2 of the drawings.

From the foregoing description it will be manifest that the castings A, B, and D can be cheaply and accurately made,'inasmuch as their patterns require no cores, and inasmuch as no drilling is necessary for ,the pivot-pin, which will be cast with the lugs 2 of the jaw 9o A. A further advantage incident to forming the handle-socket of separate sections is that the interior of the socket can be much more cleanly and accurately cast, the metal forming the socket can be made of perfectly-uniform thickness, and not only can the socket be much more readily fitted to the handle without the necessity of trimming the handle, but in case of any breakage of the handle the sections of the socket can be quickly separoo rated in vorder to permit the broken portion of the handle to be removed. An advantage incident to providing the pivot-pin 3 with the beveled shoulders 4c and to providing the semi-annular seats for the pivot-pin with correspondingly-beveled edges is that a much more iirm and snugbearing between the parts is eifected, so that the clamping edges or teeth of the jaws come together more accurately than is the case with constructions in which one jaw is provided with a straight shank that pivots between straight lugs upon an ordinary pivot pin o1' bolt.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A brush or mop head comprising a jaw B, having a reduced shank formed with a seat for the pivot-pin, and provided with a suitable space or perforation for the end of the retaining-plate, and having also a section of the socket-handle, a companion jaw A, having lugs 2, and having a pivot-pin extending between said lugs, a retaining plate or casting D, having a shank to set over the pivot-pin and provided with an end that extends between the lugs 2 of the jaw A and enters the space or perforation in the jaw B to engage said jaw, said retaining-plate having a section of the handle-socket formed in one piece therewith, and suitable means for holding the sections of the handle-socket together, substantially as described.

2. A brush or mop head comprising a jaw having a shank formed with a seat for the pivot-pin, and having also a section of the handle-s0cket provided with a screw-thread upon its exterior, a companion jaw having lugs, a pivot-pin, and a retaining plate or casting provided with a seat for said pivotpin, and having formed in one piece therewith a section of the handle-socket screw-threaded upon its exterior, and a screw-threaded nut or sleeve for uniting said retaining-plate and jaws, substantially as described.

3. A brush or mop holder comprising pivoted jaws, a pivot-pin for uniting said jaws, said pivot-pin being provided with beveled shoulders at its ends, and a retaining plate or casting, one of said jaws and said plate or casting being provided with seatshaving beveled edges corresponding with the beveled shoulders at the ends of the pivot-pin, substantially as described.

FRANK B. DAVIS.

Witnesses:

GEo. P. FISHER, J r., JAMES H. PEIRCE.