Nov. 5, 194a‘.~ ' " A. CORREA , 2,410,634 MANUAL FLOOR WAXER AND POLISHER ' Filed‘ June 25, 1944 IN ENi‘OR, BYQQW .” ,?Mia/i . ‘IQ/f W I Patented Nov. 5, 1946 .2 “.4. .. '1 "ji‘U‘NITE-Tio s'rAras PATENT orriica 1 Application June23, 1944,;SerialN0. 541,832 In Brazil December 20, 19443 3 Claims. (01. ‘15-427) - - l _ The present’ invention refers to a manual floor waxerhand polisher, with which the waxing and polishing of ‘floors, can beirnore easily, economi cally and efficiently performed than with any of . 2 . , ‘Figure’ z'r'eprese'nt's a vertical cross section of same'p'olisher'; and i . ‘ 'Figure 3 is a bottom view of. the polisher, in which one of the brushes has been removed and the other'types of polishers known to date. _ another is shown without its respective felt disc. Up tornow the rotation'of the brushes of a ?oor polisher. has only been accomplished by means of arimotor incorporated with the polisher and connected through avplug to an ‘electric outlet. With reference to the drawing, I is a frame provided in its under side‘ with circular recesses fIfheqpolisherof the present invention is also providedwwith rotating‘ brushes; however, their rotation issimply obtained. byihc friction of the 2 which form salient portions3 .onitsupp'e'r side. The central part of a doubie-a'rinijcrosshead a_4a 10 is ?tted intofe‘a‘c'h of these recesses.’ Bothsides brushes against the 'iioor. surface, as, the usual of the .longerarm; 1! vbend downwards inright angle‘ forming short vertical, sections, after which they b'éndfbafck'inrightangle to the horizontal back and forth movement is given to the pol ' position;,both ends Wof‘theselongerarms' 4 are isher. inserted’. in corresponding notches. provided for ' this‘purpose inprojecticns 5 of the frame I, The idgInn order to attain this result, two ordmore cir cu-larbrushes aremcunted in "the underside of other farm 4d of thecrossheadsisshorter and ' serves to. limit thevoscillation amplitude of said the body ofthe polisher, in such a manner that eachuof them is free to rotate around acorre spending approximately vertical axis and that allof‘them oscillate with limited small amplitude 20 around corresponding horizontal axis which cross to the external lateral side of frame l, is. con nected to nuclei the v.ends of a cylindrical‘spiral through the respective approximately vertical ro tating axis. Each brush is combined with a con veniently adapted spring which act, by utilizing green ads by the'factth'a‘t bothfo-f itsfree ends hit, against vtljie,lur"ider_;.side ofv recesses‘ 2., ,The their the ‘wager-[arms of each crosshead. closer s‘p‘ 25 " having. itsjotii‘elr'iénu exacts aj‘?‘s‘crew 1 which is threaded‘ in frame "I‘ from ‘the outside. By turning more or less this screw ‘I it is pos the limited oscillation allowance of the brushes around their respective horizontal axis, to force sible to increase or decrease the tension of spring 6 and consequently to regulate the spring pressure the under surfaces of said brushes‘ to be on dif ferent planes forming wide obtuse angles, the of the crosshead 4--lla. imaginary edges of which are parallel to the 30 A vertical axis 8 projects downwards from the horizontal axis. center of each crosshead 4-4a and ?ts into a When the polisher of the present invention base supporting the brush 9; this base consists of a conical lubricating box Ill with a cover H, is moved back and forth on the floor in the usual containing an oil soaked felt l2, and is provided manner, the following occurs: in opposition to the action of the springs which tend to maintain ‘ with a central tube l3, closed at its bottom, into the brushes on different planes, the polisher by which the axis 3 is inserted. The lower end of its own weight forces the under surfaces of said said axis 8 has a concave surface which sets on brushes to be all on the same plane in contact a metallic ball I5 placed at the bottom of said with the surface of the floor to be waxed or pol tube l3 in order to facilitate the rotation of box ished; however, due to the stress of the springs, 10 around axis 8. the pressure exerted by the brushes on the floor Each conical box it is provided at a certain point with a long screw IA extending across said is not uniformly distributed over their entire un box and penetrating into tube 13 through an ori der surface, and is greater at successive points lice 13a; the point of this screw Iii projects into ' of their circumferences as the polisher is moved back and forth. 45 an annular groove 8a in the vertical axis 8. The purpose of said screw It is to hold box if! in The present invention further includes certain position around said axis 8 without preventing preferred constructive details, as may be noted from the following description made with refer its rotation. The diameter of ori?ce l3a is some ence to the attached drawing, in ‘which a preferred what larger than that of screw M in order to per embodiment of the invention is exempli?ed. In 50 mit the passage of the lubricant from conical box Hi into tube Hi. The annular groove 8a is rela this drawing / ‘Figure l is a perspective view showing the gen tively wide in order to allow a certain vertical eral appearance of a ?oor polisher built in ac leeway of box It in relation to axis 8, so that cordance with the invention and provided with when the polisher is lifted from the floor said three brushes; 55 box l0 falls by its own weight to the point where 2,410,634 3 4 the lower side of groove 8a is held by the free end of screw l4, whereas when the polisher rests on tion to which the said brushes operate, said frame having circular recesses on its face formed by salient portions on its upper side, a double-arm the ‘?oor said box It raises along axis 8 to the point where the upper side of groove 8a is retained cross head ?tted in each recess and each having by the free end of screw I4. a vertical axis, one of the cross arms being The lower part of box It] is provided with a hori shorter than the other, the longer cross arm hav zontal disc 16 projecting outwardly which sup ing its ends journalled in the frame at opposite ports a circular brush 9. Tube 13 extends down sides of the recess, means for yieldingly holding wards from said box I0 and its lower end may the cross arm and its vertical axis tilted, the said be inserted by pressure into a tubular member 10 shorter arm serving to engage the top wall of I‘! carrying a felt disc [8 which adapts itself to the recess for limiting the tilting action, and means by which the brush is rotatably mounted , the under surface of the brush. Similarly to other usual types of ?oor polishers, on the vertical axis, said means consisting of a the polisher of the present invention is provided , conical lubricating box provided with a cover for with an oscillating handle [9. This handle is pro containing a lubricant and. said box being pro vided with a central tube closed at its bottom into vided with a latch 20 which may be fastened in a notched projection 2| on the upper side of frame which tube the vertical axis is inserted, and means for holding the parts assembled. I, in order to facilitate the portableness of the 3. A manual ?oor waxer and polisher including floor polisher. two or more circular brushes, a frame with rela It will be understood that the present invention tion to which the said brushes operate, said frame is not limited to the above described form of con having circular recesses on its face formed by struction, which is merely a preferred form, but on the contrary it is intended to include any modi?cations made within the spirit of the in vention and of the characteristic points men tioned in the following claims. salient portions on its upper side, a double-arm cross head ?tted in each recess and each having a vertical axis, one of the cross arms being shorter than the other, the longer cross arm hav ing its ends journalled in the frame at opposite sides of the recess, means for yieldingly holding the cross arm and its vertical axis tilted, the said tion to which the said brushes operate, said frame 30 shorter cross arm serving to engage the top wall of the recess for limiting the tilting action, means having circular recesses on its face formed by by which the brush is rotatably mounted on the salient portions on its upper side, a double-arm vertical axis, said means'consisting of a ‘conical cross head ?tted in each recess and each having lubricating box provided with a cover for con-' a vertical axis, one of the cross arms beingyshorter taining a lubricant and said box being provided than the other, the longer cross arm having its with a central tube closed at its bottom into endsjournalled in the frame at opposite sides of which tube the vertical axis is inserted, an annu the recess, means for yieldingly holding the cross lar groove formed in the vertical axis, and a arm and its vertical axis tilted, the said shorter screw extending through the lubricating box and cross arm serving to engage the top wall of the recess for limiting the tilting action,~jand means 40 having its end projecting into the annular groove permitting axial movement of the ‘vertical axis by which the brush is rotatably mounted on the and retaining the parts assembled. I claim: - l. A manual ?oor waxer and polisher including two or more circular brushes, aframe with rela vertical axis. ‘ H . ' _ 2. A manual ?oor waxer and polisher including two or more circular brushes, a frame with rela Arron/r coRREA.