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Publication numberUS2874946 A
Publication typeGrant
Publication dateFeb 24, 1959
Filing dateOct 28, 1955
Priority dateOct 28, 1955
Publication numberUS 2874946 A, US 2874946A, US-A-2874946, US2874946 A, US2874946A
InventorsBrown Bernard D, Singleterry Vernon A
Original AssigneeBrown Bernard D, Singleterry Vernon A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Floor covering stripper
US 2874946 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

Feb. 24, 1959 y. A. SINGLETERRY ET'AL 2,

' FLOOR COVERING'STRIPPER Filed 0st. 28, 1955 2 Sheets- Sheet 1 1,, .W 7 J1 2w y Fig 2 Ve rnon A. Single terry Bernard D. Brown JNVENTORS.

BY M -m,

Feb. 24, 1959 v. A. SINGLETERRY ET AL FLOOR COVERING STRIPPER 2 Sheets-Sheet 2 Filed Oct. 28, 1955 Fig.3

Fig.4

U S. m, r R m e n 0 WT a A Mom MI nafV .mBm 0 M in a mm Q2 8 VB 8 2,874,946 FLOOR covnnnscsrmrrnn Vernon A. Singleterry and Bernard D. Brown Rosemead, Calif.

Application October 28, 1955, Serial No. 543,508 1 Claim. (Cl. 262- 13) the market, such as asphalt, rubber, cork and a large group of plastic tiles. The primary object of this invention is to provide a machine which breaks the bond between the floor covering, as linoleum or tile, while the machine is moved a long the floor, thereby removing the floor covering by a chipping or breaking action rather than by a cutting action.

Another object of the invention is to provide a floor stripping machine which removes the floor covering from the original floor or other supporting surface by a rapidly oscillating blade having a blunt chisel edge, for example, a cutting edge at about 15 measured from the vertical, together with knives which work with the cutter to sever the floor covering into strips as it is being released from its bond with the floor surface.

Another object of the invention is to provide on a floor covering removal machine means for guiding the removed linoleum or other covering so that it is rolled ahead of the attendant as he walks the machine forward to strip the floor covering.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a perspective view of a machine which embodies the principles of the invention;

Figure 2 is a sectional view taken on the plane of the line 2-2 of Figure 1 and in the direction of the arrows;

Figure 3 is a sectional view taken on the plane of line 33 of Figure 2 and in the direction of the arrows showing particularly the means for oscillating the cutter; and

Figure 4 is a sectional view taken substantially on the plane of line 4-4 of Figure 2 and in the direction of the arrows.

The machine 10 has a handle shank 12 with a handle 14 at one end adapted to be grasped by a walking attendant as he moves the machine 10 forward while it is performing its intended operation. A fork 16 is attached to the lower end of the shank 12 and has trunnions 18 carried by it, the latter mounting the handle for pivotal movement in order to serve as a convenience for the attendant.

Housing 20 having an open bottom and a motor seat 22 bounded by flange 24 is used as a support for the various operative parts of the machine 10. The fork 16 is operable for pivotal movement in wells 26 and 28 4 United States atent ICC 2 formed in the upper part of housing 20 and trunnions 18 are mounted in suitable apertures provided in vertical portions of the housing which serve as walls for the wells 26 and 28.

A motor 30 is disposed in the seat 22 and bounded by the flange 24 at its lower end. The motor may be bolted or fixed in other ways to the housing 20, and has a line cord 32 extending therefrom. This cord passes through the handle shank 12 and is interrupted by a switch convenient tothe attendant. The motor 30 must be capable of reasonably high speed in order that the floor covering may be removed by breaking its bond with the original floor. For example, a speed of about 1450 R. P. M. for a one-quarter horsepower motor is suggested.

Shaft 34 driven by motor 30 is vertically disposed and mounted for rotation in thrust bearings 36 and 38 respectively. 'A bearing support plate 40is secured to and within housing 20 and has an aperturein which the bearing 36 is pressed or otherwise fixed. The lower thrust bearing 38 for shaft 34 is similarly secured in an opening in a lower plate 44, the latter extending across a substantial part of the open bottom of housing 20. Screws 46 or other fasteners hold lower plate 44 secured to housing 20. Wheels 47 and 48 are disposed in openings formed in plate 44, the wheels being mounted on spindles carried by plate 44, housing 20 or both. Wheels 47 and 48 function to support the back part of the machine and form a pivot about which the attendant may rock the machine.

Means for oscillating the cutter 50 are attached to the cutter and are drivingly connected with shaft 34. The preferred means consist of a shuttle 56 that is retained captive in an opening 58 which is formed in the blade support 60. Opening 58 has clearance at the sides of it for the shuttle 56, and there is little or no clearance at the front and rear surfaces of the shuttle which rest on the front and rear walls of opening 58. .An eccentric 62 is pressed, keyed as at 64 or otherwise fixed to shaft 34 for rotation therewith. An antifriction bearing 64 is mounted on the periphery of eccentric 62, and disposed in the seat 66 formed in a central aperture in shuttle 56. In view of the clearance on the sides of shuttle 56, when shaft 34 is rotated, only the fore and aft component of movement is transmitted to the support plate 60, all lateral components being taken up as lost motion in opening 58. Cutter 50 is removahly secured to the support plate 60 by having a portion of it overlap the support plate and by being bolted, as at 68 thereto. I

Means for cutting the linoleum, tile or other floor covering into strips as the machine 10 is actuated are attached to the cutter 50. They comprise a pair of knives 70 and 72 which are mounted at the outer, lateral edges of the cutter 50 and which rise upwardly therefrom. These cutters have their cutting edges terminating forwardly at the leading portion of edge 54.

In operation, the attendant energizes motor 30 by actuation of the switch located convenient to handle 14. As the motor 30 is actuated, shaft 34 rotates in its bearings 36 and 38. This rotation is converted to oscillatory movement of the cutter 50 through the eccentric 62,

shuttle 56 and support plate 60.

The rear portion of the housing 20 is supported on the wheels 47 and 48 and the front portion is supported by having it bear on surface 52 of the cutter 50. Inasmuch as the motor 30 is capable of rather high rates of speed and the edge 54 of the cutter 50 is blunt, the bonding material between the floor covering and the floor surface is cracked and broken as machine 10 is moved forwardly. Once the floor covering is started, that is, a small portion originally removed, surface 52 comes to rest on the original flo'onand'the remainder of the room, corridor or other covered flooring is removed instrips as the bonding material is broken by the oscillation of cutter 50. v

The knives 70 and 72 oscillating with cutter 50 tale vertical cuts in the flodrcovering'thre'by defining the strips which tend to 'roll up the machine 10 as it is moved forward by the attendant.

Thefront surface 74 of housing 20 is convex and coacts with the inner surfaces 76 and 78 of knives 72 and 70 respectively to form a guide for the strips of floor covering that are removed from the original floor. These guidesroll the floor covering-forwardly in front of the attendant and the machine 10 as it is moved during its normal operation.

The foregoing is considered as'illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

A composition-floor covering stripping machine/comprising a housing, a driven shaft carried by said housing, means drivingly connected to said driven shaft for breaking the bond between the covering and floor to which it is bonded, said bond breaking means including a blade having a blunt chisel forward edge having a face tilted rearwardly approximately 15 from a vertical reference plane, and a flat original floor contacting surface extending rearwardly from said edge.

References Cited in the file of this patent UNITED STATES PATENTS 437,414 Felmlee Sept. 30, 1890 1,313,597 Hunter Aug. 19, 1919 2,279,454 Fischer Apr. 14, 1942 2,345,425 Phillips- Mar. 28, 1244 2,777,680 Robb Jan. 15, 1957 FOREIGN PATENTS 1,047g5s'9 France July 22, 1953

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US437414 *Sep 30, 1890 Tenoning-machine
US1313597 *Aug 31, 1918Aug 19, 1919 Tool-holdeb
US2279454 *Jan 4, 1941Apr 14, 1942Fischer HerbertFloor scraper
US2345425 *Aug 3, 1940Mar 28, 1944Frank PhillipsSod cutter
US2777680 *Apr 17, 1950Jan 15, 1957Frank B RobbMachine for removing floor coverings
FR1047559A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3377702 *Apr 15, 1966Apr 16, 1968Reginald J. AspeekSimplified high power swinging scraper tool
US3695713 *Mar 2, 1970Oct 3, 1972Outboard Marine CorpRoofing removal process and machine
US3726565 *May 28, 1971Apr 10, 1973Oliverius WMaterial stripping apparatus and blade
US4053958 *Dec 22, 1975Oct 18, 1977Taylor Leland ZSurface preparation machine
US4162809 *Feb 6, 1978Jul 31, 1979Alinder Gilbert LOscillating carpet and tile stripper
US4215475 *Jun 12, 1978Aug 5, 1980Gould Kenneth DOscillating cut-out tool
US4286383 *Apr 25, 1978Sep 1, 1981Farden Arne S BApparatus with motor-driven peeling device
US4330938 *May 11, 1981May 25, 1982Martin Raymond GCarpet stripping machine
US4394052 *Jul 16, 1981Jul 19, 1983Adams Edgar LCarpet take-up device and method for using the same
US4893437 *Apr 7, 1988Jan 16, 1990Doherty John PPower sanding adapter for jigsaws
US4963224 *Dec 26, 1989Oct 16, 1990Anderson Martin LMotorized carpet and tile stripping tool
US5076119 *Jun 5, 1990Dec 31, 1991Mary E. WenzRoof shingle remover
US5702161 *Dec 11, 1995Dec 30, 1997Finney; Randal D.Machine for removal of materials from a surface
US6135566 *Jan 22, 1999Oct 24, 2000Anderson; Martin L.Self-propelled floor stripper
US6813834 *Nov 26, 2002Nov 9, 2004Anderson Martin LAngled shank blade
US7712839 *May 6, 2009May 11, 2010Yuehting ChenTiles or bricks shoveling device
EP1541782A1 *Dec 12, 2003Jun 15, 2005Martin L. AndersonFloor stripping blade
Classifications
U.S. Classification299/37.1, 15/93.1, 30/170, 30/277, 173/24
International ClassificationE04G23/00
Cooperative ClassificationE04G23/006
European ClassificationE04G23/00D