US2738966A - Disc cutter for removing linoleum from floors - Google Patents

Description

March 20, 1956 DAVls 2,738,966

DISC CUTTER FOR REMOVING LINOLEUM FROM FLOORS Q Filed Nov. 22, 1954 III IIIIIIIIIIIIIII INVENTOR. Zy/e Da wls United States Patent- DISC CUTTER-x FOR REMOVING LINOLEUM FROM. FLOORS Lyle Davis, Tulsa, Okla. Application November'22,.1 954, Serial No. 470,352

4 Claims. (Cl. 262-19) This invention'relates to improvements in. cutter discs adapted for utilization with standard electrical upright 2,738,965 Patented Mar. 20, 1956 posed'at an angle or with an upwardly directed taper 24: Spaces or slots 26 are provided between the'cutter members 22'for the ejection of waste material and cuttings during the operation of the cutter. It will'be apparcut that the spacing of the'cutter members. 22fon the cutter bars 20 may be staggered as shown in Fi g: 2 so I that'thecutters 22 of one bar are-disposed in substantially sanding machines or the like, and moreparticularly, but

not by way of limitation, to a cutter disc for facilitating the removal of linoleum composition from floors.

The most common method inuse today-for the-removal'of linoleum-that has been previously adhered to a Homer the like 'is'a manual process wherein a two inch wide woodchisel or similar toolis utilized for scraping linoleum from the floor. The present invention contemplates overcoming this laborious manual task by providing a novel cutter disc adapted for ease ofuse with any suitable electrical upright-sanding machine. The novel cutter disc may be. easily operated to efiiciently cut the linoleum away-fromitsadhered. position on .the floor, and a guide bar is provided on the disc for balancing thereof to substantially eliminate-the vibration and chatter characteristics common to sandingdiscs and the like, and to assist the operator inmaintaiuing proper spacing of the machine inremoving thelinoleum from the floor: Without cutting into the fiooritself. It Will be apparent that the use of the present device will provide a two-fold economical saving by not only lessening the labor involved, but also reducing the time required for removing linoleum from floors.

It is, therefore, an important object of this invention to provide a cutter disc for use with an electrical sanding machine for the expedient removal of linoleum from fioors, or the like.

It .is another object of this invention to provide an apparatus for removing linoleum from floors or the like which is efficient and economical in operation.

It is still another object of this invention to provide a cutter disc easily adaptable for utilization with an electrical sanding machine forremoval of linoleum from floors or the like which is of simple and economical construction.

Other objects and advantages of the invention will be evident from the following detailed description, read in conjunction with the accompanying drawings, which illustrate my invention.

In the drawings:

Figure l is an environmental view depicting the novel cutter disc in an operable position on a suitable sanding machine.

Figure 2 is a perspective view of the novel cutter disc in an inverted position for better illustration.

Figure 3 is a side elevational view of the novel cutter disc.

Referring to the drawings in detail, reference character refers in general to a substantially circular me tallic cutter disc provided with a centrally disposed aperture 12 in the lower portion of a dish-shaped central boss portion 14 for utilization in securing the disc 10 to a sanding machine 16, as will hereinafter be set forth. A plurality of substantially rectangular recesses 18, usually circular alignment with the grooves 26 of the other cutter bars to permit a smooth continuous cutting, or scraping area as the disc 18 is rotated by the sanding machine 16 as will be hereinafter set out-in greater detail.

Arcuateiy shaped guide members 28 are interposed between-each of the cutter bars 20'and are of a height substantially that of the cutter bars 20. The guide bars 28 will balance the disc 10 by providing a counter-balance to the barsZil and the cutters-22 to provide'continuous contact thereof withthe surface being cut or scraped, thereby tending to substantially eliminate the vibration and chatter common to rotating tools of this type. It will be apparent. that the cutters 22 are preferably formed of a depth approximating standard thickness of linoleum compositions. Consequently, the guide bars 28-act as a spacthree circumferentially spaced, but not limited thereto, are

provided on one face of the disc 10. The recesses are ing-guide or stop to preclude further penetration of the cutters 22 into-the hardwood floor after complete removal of the linoleum. Of course, this is manually controlled by the-operator, but does assist the operator in providing an eflicient operation.

Operation The cutter disc 10 is secured to the sanding machine 16 in the usual manner which is well known in the art. The apertures 12 and dish-shaped boss 14 cooperate with a central shaft and fittings (not shown) normally provided on sanding machines of this type to hold the cutter disc 1%) securely in position so that the cutter blades 22 extend downwardly as clearly shown in Fig. 1. The shaft of the sanding machine 16 with the disc 10 secured thereon is rotated at a high rate of speed by any suitable activating means such as an electric motor (not shown) provided with the sanding machine. As the disc rotates or whirls and the blades 22 are brought into contact with the linoleum, they will bite into the surface thereof. The alternate spacing of the blades, or cutters 22 assures a smooth continuous area of cutting and scraping as the machine is moved across the linoleum. The grooves 26 permit the waste material of the linoleum being removed to fall away from the cutters to substantially preclude any hindrance therefrom during the removal operation. In this manner, the entire surface of the linoleum flooring may be cut away. The depth of the cutters 22 permits them to approach the base floor material at about the same time that the guide bar 28 will approach the height of the original surface of the linoleum, thereby alleviating possibilities of cutting into the base upon which the linoleum is attached.

An operator may quickly and easily become adept at handling the machine 16 with the disc' 10 thereon to recognize the feel of the machine as the guide bars 28 begin to approach the depth of the original surface of the linoleum, and he will be able to lift the machine away from'the area to avoid cutting into the flooring material to which the linoleum has been previously adhered. The guide bars 28 will substantially eliminate the vibration and chatter common in tools of this type by providing a counter-balanced surface, with respect to the cutter bars 20 and the cutters 22, against the linoleum at all times as the disc moves along the surface of the linoleum.

From the foregoing, it will be apparent that the present invention provides asimple, etficient cutting disc adapted to be utilized with a standard sanding machine to substantially reduce the heretofore laborious task of removing linoleum from a floor or the like. An operator may quickly become adept at handling the novel tool to remove linoleum in a more rapid and efficient manner, thus sub stantially reducing the time and cost of such tasks.

, Changes may be made in the combination and arrangement of parts as heretofore set forth in the specification and shown in the drawings, it being understood that any modification in the precise embodiment of the invention may be made within the scope of the following claims Without departing from the spirit of the invention.

I claim:

I. In combination with an electrical sanding machine, a cutter disc cooperating therewith for removing linoleum from floors, cutter bars radially disposed on the disc and having upstanding cutters radially spaced thereon, arcuately shaped guide bars circumferentially spaced on the disc between the cutter bars to counter-balance the cutter bars, said cutters extending further from the disc than said guide bars, and means to secure the disc to the sanding machine.

2. In combination with an electrical sanding machine, a cutter disc cooperating therewith for removing linoleum from floors, cutter bars radially disposed on the disc and having upstanding cutters radially spaced thereon, said cutters having complementary inclined faces for providing a cutting edge therefor, arcuately shaped guide bars circumferentially spaced on the disc between the cutter bars to counter-balance the cutter bars, said cutters extending further from the disc than said guide bars, and means to secure the disc to the sanding machine.

3. In combination with motive power apparatus proepsacee viding rotational movement, a circular cutter disc cooperating therewith for removing linoleum from surfaces,

a plurality of cutter bars radially disposed on the disc and having a plurality of cutters radially spaced thereon to provide grooves therebetween, said cutters having a tapered face to assure an eflicient cutting edge, said grooves between the cutters providing for disposal of waste material during the cutting operation, a plurality of arcuately shaped guide bars circumferentially spaced on the disc to counter-balance the cutter bars to substantially eliminate vibration of the disc during operation, said cutters extending further from the disc than said guide bars, and means for securing the disc to the sanding machine.

4. in combination with an electrical sanding machine or the like, a circular cutter disc cooperating therewith for removing linoleum from floors, a plurality of cutter bars radially disposed on the disc, a plurality of cutters alternately spaced by grooves on the cutter bars to assure a uniform scraping of the linoleum, said grooves providing disposal of waste material during the cutting operation, a plurality of arcuately shaped guide bars circumferentially spaced on the disc to counter-balance the cutter bars to substantially eliminate vibration and chatter of the disc during operation thereof, said cutters extending further from the disc than said guide bars, said guides disposed between the cutter bars and cooperating with the cutters to assist in limiting the penetration of the cutter during the cutting operation, and means for securing the disc to the sanding machine.

References Cited in the file of this patent UNITED STATES PATENTS 94,590 Gage Sept. 7, 1869 140,905 Erdmann July 15, 1873 1,445,133 Drake Feb. 13, 1923 1,652,820 Evans Dec. 13, 1927 2,102,992 Card, Jr. Dec. 21, 1937

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