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Патент USA US2120868

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June 14, 19381.
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H, a REED
2,120,868
AUTOMATIC POLISH FEEDER
Filed May 11, 1956
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Harry JIZZe éd,
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June14,1938.‘
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HS REED
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2,120,868
AUTOMATIC POLISH FEEDER
'Filed May 11, 1936
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Patented June 14, 1938'v
2,120,868
UNITED STATES PATENT OFFICE
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2,120,868
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AUTOMATIC POLISH FEEDER
Harry S. Reed, Yakima, Wash.
Application May 11, 1936, Serial No. 79,117
1 Claim. , (01. 51-263)
5
This invention relates to automatic polish
feeders and has for the primary'object'the pro~
vision of a device which is especially adapted for
the tube 5 and to a tube l5, and the latter is
in turn connected to the outlet iii of a compressor
_ i'l mounted on the base I. A drive shaft I8 is
- ef?ciently distributing abrasive to a lens polish
ing tool or machine or for any other purpose
wherein it is desired to have abrasive spread on
is connected to an electric motor 20 mounted on
the base and equipped with a rheostat 2| for
a surface.
,
With these and other objects in view this in
ventionconsists in certain 'novel features of con
710'
struction, combination and arrangement of parts
‘
For a complete understanding of my invention,
reference is to be had to the following descrip
'15 tion and accompanying drawings, in which
Figure 1 is a side elevation partly in section
illustrating an automatic polish feeder construct
‘ ed in accordance with my invention.
Figure 2 is a top plan view illustrating the
20 same.
Figure 3 is a diagrammatical view illustrating
a series of feeders operating from a single com
pressor;
and
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' Figure 4 is a detail sectional view illustrating
the adjustable mounting for the brush.
Referring in detail to the drawings, the nu
meral l indicates a suitable base on which is
mounted a vertically arranged standard 2 carry
ing a tank or reservoir 3 for containing abrasive
30 and is provided with an outlet valve 4 to which
is connected a ?exible tube 5.
A distributing brush iiv consisting of a brush
head '1' carrying bristles 8 and a handle 9 is
molded to the head.~ The handle 9 is engaged
35 by an adjustable clamp l0 having a swivel con
nection II to the base i whereby the brush may
be moved or arranged in several adjusted posi
tions so as to contact with a surface. Mounted
in the head 1 of the brush is a tube l2 one end
40
the purpose ofre'gulating speed of rotation of
the motor.
shaft
A ?y wheel 22 is secured to the drive
I8.
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7
After the brush 6 has been adjusted to a sur
to be hereinafter more fully described and V face, the valve 4 is'opened to permit the abrasive
claimed.
2
geared to the compressor, as shown at !9, and
of whichrterminates within the bristles 8 while
the other end extends outwardly of the head and
is connected to a ?exible tube I 3. _A'Y-shaped
coupling I4 is connected to the tube. l3‘ and t0
of the tank 3 to pass into the Y M. The com
pressor l1 driven by the motor 20 forces air into
the coupling M which mingles with the abrasive
and forces the latter between the bristles of the 15
brush onto the ‘surface. The compressor l1 isv
of the type having a reciprocating piston (not ,
shown) so that the'air expelled therefrom will
be intermittent to the coupling l4 thereby eject
ing the abrasive through the brush onto the sur
face with intermittent impulses.
_
A device constructed in accordance with the
foregoing will e?iciently distribute the abrasive
onto a surface, such as 'a grinding‘ or polishing
element of a lens polishing machine or tool and 25
obviates the customary practice of manually plac
ing the abrasive on a surface by a brush operated
manually. If desired, a series of abrasive dis
tributors constructed in accordance with the
foregoing may be operated from a single com
pressor, as shown in Figure 3.
a
What is claimed is:
An automatic polish feeder comprising a base,
a fountain type brush adjustably mounted on
the base, an abrasive supply tank carried by the 35
base, an outlet valve for said tank, a power driven
compressor mounted on said base, ?exible tubes
connected to said valve, compressor and the
brush, and a Y-shaped coupling connecting the
tubes whereby the contents of the tank may com
mingle with, air from the compressor and be
forced by the air through the brush.
HARRY S. REED.
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