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Патент USA US2410634

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Nov. 5, 194a‘.~
'
"
A. CORREA
,
2,410,634
MANUAL FLOOR WAXER AND POLISHER
' Filed‘ June 25, 1944
IN ENi‘OR,
BYQQW .” ,?Mia/i
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Patented Nov. 5, 1946
.2
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'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)
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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
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‘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:
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l. A manual ?oor waxer and polisher including
two or more circular brushes, aframe with rela
vertical
axis.
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_ 2. A manual ?oor waxer and polisher including
two or more circular brushes, a frame with rela
Arron/r coRREA.
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