US 1381973 A
Abstract available in
Claims available in
Description (OCR text may contain errors)
H. L. DAVIS.
BRUSH CLEANER FOR CARPET SWEEPERS.
APPLICATION FILED MAY I. 1918- Patented June 21, 1921.
5'14 uamtoz I Gbbozneyd warren stares HELEN L. DAVIS, 0F ARLINGTON, NEW JERSEY.
BRUSE-LCLEANEB CAJRIPET-SXVEEPERS Specification of Letters Patent. Patgntged June 21, 11921.
application filed May 1, 1918. Serial No. 231,913.
To aZZ w homet may concern:
Be it known that 1, Hanan L. Dnvrs, a oiti- This invention. relates to tools for clean ing brushes and particularly to tools designed for cleaning the brushes of carpet sweepers and vacuum cleaners of that type in which a rotary brush is used adjacent the dirt receiving slot in the head of the sweeper or cleaner easing.
It is usual in these devices to arrange a rotating brush adjacent a relatively narrow slot, so that the bristles, protruding through the slot, will come in contact with the surface to be cleaned and sweep and suck the dirt back into the casing. Owing to the fact that the body of the brush is housed within the casing and the bristles only pro trude through the slot, it is ditlicult to properly clean these bristles and disengage the lint and other particles which become en tangled therein.
It is the purpose of my invention to pro vide a simple, cheaply constructed tool by means of which a brush of this character may be readily cleaned without opening the boX or casing in which it is mounted or taking down the device so as to expose the entire brush.
In order that the invention. may be clear to those skilled in the art, I have shown in the drawings herewith, one embodiment of my invention, but it will be understood that this disclosure is illustrative and is in Fig. 8 is a view in bottom plan of the toolshown in Fig. 1.
Fig. i is an end view to show of the tool. 7
Fig. 5 is a view similar to Fig. 4, showing a slightly diiierent construction.
the prongs Referring to the drawings by numerals,
like numbers indicating. like parts in the several views, 10 indicates the handle of the tool, which may be formed in any convenient manner, the. particular form shown being an open handle formed of a single PATENT OFFICE.
piece of heavy wire shaped into a loop to give a proper handle portion, with the ends of the wire twisted together to form the shank 11, and being then inclined upwardly and outwardly as at 12, with their extreme outer ends spread and turned to form the hooks 13. The hooks 13 as shown, are turned downwardly and rearwardly so as to give a'pair oi hooks which are turned under and rearwardly to give hooked lingers to engage and retain threads and waste which may be entangled in the bristles oi the brush. Preferably a third hook having an inner end 14, will. be provided between the two outer hooks so as to give a three-pronged tool, and the shank of the third or middle hook will preferably be intertwined in the manufacture of the tool with the twisted sections of the wires which form the shank 11, so as to lock it inplace, and, additionally, to thicken and stiflen the shank,
It is desirable, not only that a tool of this character shall effectively remove the waste, but also that it be so constructed as to retain and hold that waste until removed, and not merely rake it out of the brush upon the floor. The shape of the hooks 13, and the receiving recess formed thereby, is such that they rake the waste from the bristles and it packs in the throat of the hooks so as to be retained until removed therefrom by the operator.
The reduced shank 11 will, of course, permit the use of the tool in a narrow slot, for the fingers or prongs 13 may be hooked into a slot too narrow to receive them otherwise, the tool turned to combing position relative to the brush, and the shank will then readily traverse the slot and permit the tool to be manipulated.
In the form of the invention shown in 2 V V g 1,381,973
Fig. 5, the central hook 15 made longer than the outer hooks so as to project below and rea'rwardly of these outer hooks and give a deeper cleaning action centrally oi" will then be engaged with the bristles and drawn longitudinally of the brush, the brush being rotated as successive portions are cleaned to bring the uncleaned portions opposite the slot and within access of the tool By sweeping the tool across the brush longitudinally, the underturned hooks will engage and drag out the lint and other terial which has become entangled with the brush, the downwardly turned position of the hooks permitting them to be driven deeply into the bristles so as to clean them from the brush periphery to the core of the brush, and the rearwardly turneo. position of the hooks insuring the retention of the lint and other matter combed from the bristles. The hooks, when tilled withdirt and lint may, of course, be readily cleaned, the open or spread limbs of the hook portion readily permitting the waste to be removed.
Theform shown in Fig. 5 is a convenient type, for the reason thatthe longer central hook will drive deeply into andbetween the bristles and take the waste from the bottom or baseof the bristles, the two outer hooks my hand;
cleaning the bristles proper, and where the bristles are set in rows the central long tooth or hook may drop so as to ride along the body of the core and scrape the material or waste from between the brush rows, the two outer hooks cleaning the bristles themselves. It will be observed that by forming the shank 11 as shown of the intertwisted strands, a very rigid shank portion is given and one which will not bend or break in use, so that a very efficient and lasting construction is secured.
It will be understood that such slight changes in'construction as amount only to mechanical skill may be made without departing from the spirit of my invention.
What I claim is:
A brush cleaner for use in connection with handle portion, and portions adjacent its ends twistedtogether to provide a shank,
its free ends terminating in a pair of hook-.
shaped prongs, a second piece of wire intertwined with such twisted portions with its outer end terminating in a hook portion between the two first mentioned hooks, said hooks having shanks extending upwardand forward, and end portionsextending in a rearward and downward direction so as to form collecting and retaining recesses for waste. a r V In testimony whereof I have hereunto set HELEN nDAvIs.